Initial revision
This commit is contained in:
Micah Dowty
commit
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README.txt
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README.txt
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--------------------------------
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VMware SVGA Device Developer Kit
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--------------------------------
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The "VMware SVGA II" device is the virtual graphics card implemented
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by all VMware virtualization products. It is a virtual PCI device,
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which implements a basic 2D framebuffer, as well as 3D acceleration,
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video overlay acceleration, and hardware cursor support.
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This is a package of documentation and example code for the VMware
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SVGA device's programming model. Currently it consists of some very
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basic documentation, and a collection of examples which illustrate the
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more advanced features of the device. These examples are written to
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run on the "virtual bare metal", without an operating system.
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This package is intended for educational purposes, or for people who
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are developing 3D drivers. This code won't help you if you're writing
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normal user-level apps that you'd like to run inside a virtual
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machine. It's for driver authors, and it assumes a reasonable amount
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of prior knowledge about graphics hardware.
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Requirements
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|
------------
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To compile the example code, you'll need a few basic open source tools:
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- A recent version of GCC. I use 4.2. Older versions may
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require tweaking the Makefile.rules file slightly.)
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- binutils
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- GNU Make
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- Python
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To run the examples, you'll need a recent version of VMware
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|
Workstation, Player, or Fusion. Some of the examples will work on
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older versions, but Workstation 6.5.x or Fusion 2.0.x is strongly
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recommended.
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Contents
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|
--------
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* bin/
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Precompiled binaries and .vmx files for all examples. These can be
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loaded directly into VMware Workstation, Player, or Fusion.
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* doc/
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Basic SVGA hardware documentation. This includes a text file with
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|
information about the programming model, plus it includes a copy of
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a WIOV paper which describes our 3D acceleration architecture.
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|
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* lib/metalkit/
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Metalkit is a very simple open source OS, which bootstraps the
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|
examples and provides basic hardware support.
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* lib/refdriver/
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The SVGA "Reference Driver". This is a sample implementation of a
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driver for our device, which is used by the examples. It provides
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device initialiation, an implementation of the low-level FIFO
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|
protocol, and wrappers around common FIFO commands.
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If you're writing a driver for the VMware SVGA device, "svga.c"
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|
from this directory is required reading. The FIFO protocol has
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|
many subtle gotchas, and this source file is the only place
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where they're publicly documented.
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* lib/vmware/
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Header files which define VMware's protocols and virtual hardware.
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The svga_reg.h and svga3d_reg.h files are (in places, at least)
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commented with more information on the programming model.
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If you can't find specific documentation or an example on a feature,
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this is the next place to look. This is also where to get a complete
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|
list of the supported registers and commands.
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* lib/util/
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Higher-level utilities built on top of the refdriver layer. This
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directory won't contain any novel information about the virtual
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hardware, but it does contain some higher-level abstractions used
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by the examples, and these abstractions demonstrate some useful
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idioms for programming the SVGA device.
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* examples/
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Each example has a separate subdirectory. You can run "make" in the
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|
top-level directory to compile all examples, or you can build them
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|
individually.
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Many of the examples are self-explanatory, but some of them are
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not. See the comments at the beginning of the 'main.c' file in each
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|
example.
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Development
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|
-----------
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This project isn't intended to be a one-time "code drop" from VMware.
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Our intent is for the examples in this package to be maintained out in
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the open. If we have a bugfix, or a new example that works on released
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VMware products, we'll check it in directly to the public repository.
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For examples of not-yet-released features, we will be developing on an
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internal branch. This branch will be merged to the public repository
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|
shortly after the first release which has working versions of these
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features.
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License
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|
-------
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Except where noted in individual source files, the whole package is
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Copyright (C) 1998-2009 VMware, Inc. It is released under the MIT
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|
license:
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|
Permission is hereby granted, free of charge, to any person
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|
obtaining a copy of this software and associated documentation files
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|
(the "Software"), to deal in the Software without restriction,
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|
including without limitation the rights to use, copy, modify, merge,
|
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|
publish, distribute, sublicense, and/or sell copies of the Software,
|
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|
and to permit persons to whom the Software is furnished to do so,
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|
subject to the following conditions:
|
||||||
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||||||
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The above copyright notice and this permission notice shall be
|
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|
included in all copies or substantial portions of the Software.
|
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|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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|
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
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|
BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||||
|
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||||
|
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||||
|
SOFTWARE.
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|
Contact
|
||||||
|
-------
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|
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||||||
|
This project is provided as-is, with no official support from
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VMware. However, I will try to answer questions as time permits.
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If you have questions or you'd like to submit a patch, feel free
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to email me at: micah at vmware.com
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--
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BIN
bin/2dmark.img
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bin/2dmark.img
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bin/2dmark.vmx
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bin/2dmark.vmx
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config.version = 8
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virtualHW.version = 7
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memsize = 4
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displayname = 2dmark
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guestOS = other
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mks.enable3d = TRUE
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floppy0.startConnected = TRUE
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floppy0.fileType = file
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floppy0.fileName = 2dmark.img
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BIN
bin/blit-cube.img
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bin/blit-cube.img
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bin/blit-cube.vmx
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bin/blit-cube.vmx
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config.version = 8
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virtualHW.version = 7
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memsize = 4
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displayname = blit-cube
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guestOS = other
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mks.enable3d = TRUE
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floppy0.startConnected = TRUE
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floppy0.fileType = file
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floppy0.fileName = blit-cube.img
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BIN
bin/bunnies.img
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bin/bunnies.img
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bin/bunnies.vmx
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config.version = 8
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virtualHW.version = 7
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memsize = 4
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displayname = bunnies
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guestOS = other
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mks.enable3d = TRUE
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floppy0.startConnected = TRUE
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floppy0.fileType = file
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floppy0.fileName = bunnies.img
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bin/cube.img
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config.version = 8
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virtualHW.version = 7
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memsize = 4
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displayname = cube
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guestOS = other
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mks.enable3d = TRUE
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floppy0.startConnected = TRUE
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floppy0.fileType = file
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floppy0.fileName = cube.img
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BIN
bin/cubemark.img
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config.version = 8
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virtualHW.version = 7
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memsize = 4
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displayname = cubemark
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guestOS = other
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mks.enable3d = TRUE
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floppy0.startConnected = TRUE
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|
floppy0.fileType = file
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floppy0.fileName = cubemark.img
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BIN
bin/dynamic-vertex-stress.img
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bin/dynamic-vertex-stress.img
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config.version = 8
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virtualHW.version = 7
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memsize = 4
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displayname = dynamic-vertex-stress
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guestOS = other
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mks.enable3d = TRUE
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floppy0.startConnected = TRUE
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floppy0.fileType = file
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floppy0.fileName = dynamic-vertex-stress.img
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BIN
bin/dynamic-vertex.img
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config.version = 8
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virtualHW.version = 7
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memsize = 4
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displayname = dynamic-vertex
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guestOS = other
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mks.enable3d = TRUE
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floppy0.startConnected = TRUE
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floppy0.fileType = file
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floppy0.fileName = dynamic-vertex.img
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BIN
bin/fence-stress.img
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config.version = 8
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virtualHW.version = 7
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memsize = 4
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|
displayname = fence-stress
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guestOS = other
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|
mks.enable3d = TRUE
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|
floppy0.startConnected = TRUE
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|
floppy0.fileType = file
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|
floppy0.fileName = fence-stress.img
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BIN
bin/gmr-test.img
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|
config.version = 8
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|
virtualHW.version = 7
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|
memsize = 128
|
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|
displayname = gmr-test
|
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|
guestOS = other
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|
mks.enable3d = TRUE
|
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|
floppy0.startConnected = TRUE
|
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|
floppy0.fileType = file
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|
floppy0.fileName = gmr-test.img
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BIN
bin/half-float-test.img
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config.version = 8
|
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|
virtualHW.version = 7
|
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|
memsize = 4
|
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|
displayname = half-float-test
|
||||||
|
guestOS = other
|
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|
mks.enable3d = TRUE
|
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|
floppy0.startConnected = TRUE
|
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|
floppy0.fileType = file
|
||||||
|
floppy0.fileName = half-float-test.img
|
||||||
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bin/pong.img
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|
config.version = 8
|
||||||
|
virtualHW.version = 7
|
||||||
|
memsize = 4
|
||||||
|
displayname = pong
|
||||||
|
guestOS = other
|
||||||
|
mks.enable3d = TRUE
|
||||||
|
floppy0.startConnected = TRUE
|
||||||
|
floppy0.fileType = file
|
||||||
|
floppy0.fileName = pong.img
|
||||||
BIN
bin/presentReadback.img
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||||||
|
config.version = 8
|
||||||
|
virtualHW.version = 7
|
||||||
|
memsize = 4
|
||||||
|
displayname = presentReadback
|
||||||
|
guestOS = other
|
||||||
|
mks.enable3d = TRUE
|
||||||
|
floppy0.startConnected = TRUE
|
||||||
|
floppy0.fileType = file
|
||||||
|
floppy0.fileName = presentReadback.img
|
||||||
BIN
bin/simple-shaders.img
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|
|
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|
config.version = 8
|
||||||
|
virtualHW.version = 7
|
||||||
|
memsize = 4
|
||||||
|
displayname = simple-shaders
|
||||||
|
guestOS = other
|
||||||
|
mks.enable3d = TRUE
|
||||||
|
floppy0.startConnected = TRUE
|
||||||
|
floppy0.fileType = file
|
||||||
|
floppy0.fileName = simple-shaders.img
|
||||||
BIN
bin/simple_blit.img
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|
|
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|
||||||
|
config.version = 8
|
||||||
|
virtualHW.version = 7
|
||||||
|
memsize = 4
|
||||||
|
displayname = simple_blit
|
||||||
|
guestOS = other
|
||||||
|
mks.enable3d = TRUE
|
||||||
|
floppy0.startConnected = TRUE
|
||||||
|
floppy0.fileType = file
|
||||||
|
floppy0.fileName = simple_blit.img
|
||||||
BIN
bin/video-formats.img
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|
|
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|
||||||
|
config.version = 8
|
||||||
|
virtualHW.version = 7
|
||||||
|
memsize = 4
|
||||||
|
displayname = video-formats
|
||||||
|
guestOS = other
|
||||||
|
mks.enable3d = TRUE
|
||||||
|
floppy0.startConnected = TRUE
|
||||||
|
floppy0.fileType = file
|
||||||
|
floppy0.fileName = video-formats.img
|
||||||
BIN
bin/video-sync.img
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|
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|
||||||
|
config.version = 8
|
||||||
|
virtualHW.version = 7
|
||||||
|
memsize = 4
|
||||||
|
displayname = video-sync
|
||||||
|
guestOS = other
|
||||||
|
mks.enable3d = TRUE
|
||||||
|
floppy0.startConnected = TRUE
|
||||||
|
floppy0.fileType = file
|
||||||
|
floppy0.fileName = video-sync.img
|
||||||
BIN
doc/gpu-wiov.pdf
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doc/gpu-wiov.pdf
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|
||||||
|
|
||||||
|
Copyright (C) 1999-2009 VMware, Inc.
|
||||||
|
All Rights Reserved
|
||||||
|
|
||||||
|
|
||||||
|
VMware SVGA Device Interface and Programming Model
|
||||||
|
--------------------------------------------------
|
||||||
|
|
||||||
|
Revision 3, 2009-04-12
|
||||||
|
|
||||||
|
|
||||||
|
Table of Contents:
|
||||||
|
|
||||||
|
1. Introduction
|
||||||
|
2. Examples and Reference Implementation
|
||||||
|
3. Virtual Hardware Overview
|
||||||
|
4. 2D Graphics Model
|
||||||
|
5. 3D Graphics Model
|
||||||
|
6. Overview of SVGA3D features
|
||||||
|
7. Programming the VMware SVGA Device
|
||||||
|
|
||||||
|
XXX - Todo
|
||||||
|
----------
|
||||||
|
|
||||||
|
This document does not yet describe the 3D hardware in great
|
||||||
|
detail. It is an architectural overview. See the accompanying sample
|
||||||
|
and reference code for details.
|
||||||
|
|
||||||
|
Section (7) is biased toward describing much older features of the
|
||||||
|
virtual hardware. Many new capability flags and FIFO commands have
|
||||||
|
been added, and these are sparsely documented in svga_reg.h.
|
||||||
|
|
||||||
|
|
||||||
|
1. Introduction
|
||||||
|
----------------
|
||||||
|
|
||||||
|
This document describes the virtual graphics adapter interface which
|
||||||
|
is implemented by VMware products. The VMware SVGA Device is a virtual
|
||||||
|
PCI video card. It does not directly correspond to any real video
|
||||||
|
card, but it serves as an interface for exposing accelerated graphics
|
||||||
|
capabilities to virtual machines in a hardware-independent way.
|
||||||
|
|
||||||
|
In its simplest form, the VMware SVGA Device can be used as a basic
|
||||||
|
memory-mapped framebuffer. In this mode, the main advantage of
|
||||||
|
VMware's SVGA device over alternatives like VBE is that the virtual
|
||||||
|
machine can explicitly indicate which ares of the screen have changed
|
||||||
|
by sending update rectangles through the device's command FIFO. This
|
||||||
|
allows VMware products to avoid reading areas of the framebuffer which
|
||||||
|
haven't been modified by the virtualized OS.
|
||||||
|
|
||||||
|
The VMware SVGA device also supports several advanced features:
|
||||||
|
|
||||||
|
- Accelerated video overlays
|
||||||
|
- 2D acceleration
|
||||||
|
- Synchronization primitives
|
||||||
|
- DMA transfers
|
||||||
|
- Device-independent 3D acceleration, with shaders
|
||||||
|
- Multiple monitors
|
||||||
|
- Desktop resizing
|
||||||
|
|
||||||
|
|
||||||
|
2. Examples and Reference Implementation
|
||||||
|
-----------------------------------------
|
||||||
|
|
||||||
|
This document is not yet complete, in that it doesn't describe the
|
||||||
|
entire SVGA device interface in detail. It is an architectural
|
||||||
|
overview of the entire device, as well as an introduction to a few
|
||||||
|
basic areas of programming for the device.
|
||||||
|
|
||||||
|
For deeper details, see the attached example code. The "examples"
|
||||||
|
directory contains individual example applications which show various
|
||||||
|
features in action. The "lib" directory contains support code for the
|
||||||
|
example applications.
|
||||||
|
|
||||||
|
Some of this support code is designed to act as a reference
|
||||||
|
implementation. For example, the process of writing to the command
|
||||||
|
FIFO safely and efficiently is very complicated. The attached
|
||||||
|
reference implementation is a must-read for anyone attempting to write
|
||||||
|
their own driver for the SVGA device.
|
||||||
|
|
||||||
|
For simplicity and OS-neutrality, all examples compile to floppy disk
|
||||||
|
images which execute "on the bare metal" in a VMware virtual
|
||||||
|
machine. There are no run-time dependencies. At compile-time, most of
|
||||||
|
the examples only require a GNU toolchain (GCC and Binutils). Some of
|
||||||
|
the examples require Python at compile-time.
|
||||||
|
|
||||||
|
Each example will generate a .vmx virtual machine configuration file
|
||||||
|
which can be used to boot it in VMware Workstation or Fusion.
|
||||||
|
|
||||||
|
The included example code focuses on advanced features of the SVGA
|
||||||
|
device, such as 3D and synchronization primitives. There are also a
|
||||||
|
couple examples that demonstrate 3D graphics and video overlays.
|
||||||
|
|
||||||
|
For more examples of basic 2D usage, the Xorg driver is also a good
|
||||||
|
reference.
|
||||||
|
|
||||||
|
Header files and reference implementation files in 'lib':
|
||||||
|
|
||||||
|
* svga_reg.h
|
||||||
|
|
||||||
|
SVGA register definitions, SVGA capabilities, and FIFO command
|
||||||
|
definitions.
|
||||||
|
|
||||||
|
* svga_overlay.h
|
||||||
|
|
||||||
|
Definitions required to use the SVGA device's hardware video overlay
|
||||||
|
support.
|
||||||
|
|
||||||
|
* svga_escape.h
|
||||||
|
|
||||||
|
A list of definitions for the SVGA Escape commands, a way to send
|
||||||
|
arbitrary data over the SVGA command FIFO. Escapes are used for video
|
||||||
|
overlays, for vendor-specific extensions to the SVGA device, and for
|
||||||
|
various tools internal to VMware.
|
||||||
|
|
||||||
|
* svga3d_reg.h
|
||||||
|
|
||||||
|
Defines the SVGA3D protocol, the set of FIFO commands used for hardware
|
||||||
|
3D acceleration.
|
||||||
|
|
||||||
|
* svga3d_shaderdefs.h
|
||||||
|
|
||||||
|
Defines the bytecode format for SVGA3D shaders. This is used for
|
||||||
|
accelerated 3D with programmable vertex and pixel pipelines.
|
||||||
|
|
||||||
|
* svga.c
|
||||||
|
|
||||||
|
Reference implementation of low-level SVGA device functionality.
|
||||||
|
This contains sample code for device initialization, safe and
|
||||||
|
efficient FIFO writes, and various synchronization primitives.
|
||||||
|
|
||||||
|
* svga3d.c
|
||||||
|
|
||||||
|
Reference implementation for the SVGA3D protocol. This file
|
||||||
|
uses the FIFO primitives in svga.c to speak the SVGA3D protocol.
|
||||||
|
Includes a lot of in-line documentation.
|
||||||
|
|
||||||
|
* svga3dutil.c
|
||||||
|
|
||||||
|
This is a collection of high-level utilities which provide usage
|
||||||
|
examples for svga3d.c and svga.c, and which demonstrate common
|
||||||
|
SVGA3D idioms.
|
||||||
|
|
||||||
|
|
||||||
|
3. Virtual Hardware Overview
|
||||||
|
-----------------------------
|
||||||
|
|
||||||
|
The VMware SVGA Device is a virtual PCI device. It provides the
|
||||||
|
following low-level hardware features, which are used to implement
|
||||||
|
various feature-specific protocols for 2D, 3D, and video overlays:
|
||||||
|
|
||||||
|
* I/O space, at PCI Base Address Register 0 (BAR0)
|
||||||
|
|
||||||
|
There are only a few I/O ports. Besides the ports used to access
|
||||||
|
registers, these are generally either legacy features, or they are for
|
||||||
|
I/O which is performance critical but may have side-effects. (Such as
|
||||||
|
clearing IRQs after they occur.)
|
||||||
|
|
||||||
|
* Registers, accessed indirectly via INDEX and VALUE I/O ports.
|
||||||
|
|
||||||
|
The device's register space is the principal method by which
|
||||||
|
configuration takes place. In general, registers are for actions which
|
||||||
|
may have side-effects and which take place synchronously with the CPU.
|
||||||
|
|
||||||
|
* Guest Framebuffer (BAR1)
|
||||||
|
|
||||||
|
The SVGA device itself owns a variable amount of "framebuffer" memory,
|
||||||
|
up to a maximum of 128MB. This memory size is fixed at power-on. The
|
||||||
|
memory exists outside of the virtual machine's "main memory", and it's
|
||||||
|
mapped into PCI space via BAR1. The size of this framebuffer may be
|
||||||
|
determined either by probing BAR1 in typical PCI fashion, or by
|
||||||
|
reading SVGA_REG_FB_SIZE.
|
||||||
|
|
||||||
|
The beginning of framebuffer memory is reserved for the 2D
|
||||||
|
framebuffer. The rest of framebuffer memory may be used as buffer
|
||||||
|
space for DMA operations.
|
||||||
|
|
||||||
|
* Command FIFO (BAR2)
|
||||||
|
|
||||||
|
The SVGA device can be thought of as a co-processor which executes
|
||||||
|
commands asynchronously with the virtual machine's CPU. To enqueue
|
||||||
|
commands for this coprocessor, the SVGA device uses another
|
||||||
|
device-owned memory region which is mapped into PCI space.
|
||||||
|
|
||||||
|
The command FIFO is usually much smaller than the framebuffer. While
|
||||||
|
the framebuffer usually ranges from 4MB to 128MB, the FIFO ranges in
|
||||||
|
size from 256KB to 2MB. Like the framebuffer, the FIFO size is fixed
|
||||||
|
at power-on. The FIFO is mapped via PCI BAR2.
|
||||||
|
|
||||||
|
* FIFO Registers
|
||||||
|
|
||||||
|
The beginning of FIFO memory is reserved for a set of "registers".
|
||||||
|
Some of these are used to implement the FIFO command queueing
|
||||||
|
protocol, but many of these are used for other purposes. The main
|
||||||
|
difference between FIFO registers and non-FIFO registers is that FIFO
|
||||||
|
registers are backed by normal RAM whereas non-FIFO registers require
|
||||||
|
I/O operations to access. This means that only non-FIFO registers can
|
||||||
|
have side-effects, but FIFO registers are much more efficient when
|
||||||
|
side-effects aren't necessary.
|
||||||
|
|
||||||
|
The FIFO register space is variable-sized. The driver is responsible
|
||||||
|
for partitioning FIFO memory into register space and command space.
|
||||||
|
|
||||||
|
* Synchronization Primitives
|
||||||
|
|
||||||
|
Conceptually, the part of the SVGA device which processes FIFO
|
||||||
|
commands can be thought of as a coprocessor or a separate thread of
|
||||||
|
execution. The virtual machine may need to:
|
||||||
|
|
||||||
|
- Wake up the FIFO processor when it's sleeping, to ensure that
|
||||||
|
new commands are processed with low-latency. (FIFO doorbell)
|
||||||
|
|
||||||
|
- Check whether a previously enqueued FIFO command has been
|
||||||
|
processed. (FIFO fence)
|
||||||
|
|
||||||
|
- Wait until the FIFO processor has passed a particular
|
||||||
|
command. (Sync to fence)
|
||||||
|
|
||||||
|
- Wait until more space is available in the FIFO. (Wait for
|
||||||
|
FIFO progress)
|
||||||
|
|
||||||
|
* Interrupts (Workstation 6.5 virtual machines and later only)
|
||||||
|
|
||||||
|
On virtual machines which have been upgrade to Workstation 6.5 virtual
|
||||||
|
hardware, the SVGA device provides an IRQ which can be used to notify
|
||||||
|
the virtual machine when a synchronization event occurs. This allows
|
||||||
|
implementing operations like "Sync to fence" without interfering with
|
||||||
|
a virtual machine's ability to multitask.
|
||||||
|
|
||||||
|
On older virtual hardware versions, the SVGA device only supports a
|
||||||
|
"legacy sync" mechanism, in which a particular register access has the
|
||||||
|
side-effect of waiting for host FIFO processing to occur. This older
|
||||||
|
mechanism completely halts the virtual machine's CPU while the FIFO is
|
||||||
|
being processed.
|
||||||
|
|
||||||
|
* Physical VRAM
|
||||||
|
|
||||||
|
The VMware SVGA device provides management of physical VRAM resources
|
||||||
|
via "surface objects", however physical VRAM is never directly visible
|
||||||
|
to the virtual machine. Physical VRAM can only be accessed via DMA
|
||||||
|
transfers.
|
||||||
|
|
||||||
|
Note that framebuffer memory is simply a convenient place to put DMA
|
||||||
|
buffers. Even if a virtual machine only has 16MB of framebuffer memory
|
||||||
|
allocated to it, it could be using gigabytes of physical VRAM if that
|
||||||
|
memory is available to the physical GPU.
|
||||||
|
|
||||||
|
* DMA engine
|
||||||
|
|
||||||
|
The VMware SVGA device can asynchronously transfer surface data
|
||||||
|
between phyiscal VRAM and guest-visible memory. This guest-visible
|
||||||
|
memory could be part of framebuffer memory, or it could be part of
|
||||||
|
guest system memory.
|
||||||
|
|
||||||
|
The DMA engine uses a "Guest Pointer" abstraction to refer to any
|
||||||
|
guest-visible memory. Guest pointer consist of an offset and a Guest
|
||||||
|
Memory Region (GMR) ID. There is a pre-defined GMR which refers to
|
||||||
|
framebuffer memory. The virtual machine can create additional GMRs to
|
||||||
|
refer to regions of system memory which may or may not be physically
|
||||||
|
contiguous.
|
||||||
|
|
||||||
|
|
||||||
|
4. 2D Graphics Model
|
||||||
|
---------------------
|
||||||
|
|
||||||
|
Conceptually, the 2D portion of the VMware SVGA device is a compositor
|
||||||
|
which displays a user-visible image composed of several planes. From
|
||||||
|
back to front, those planes are:
|
||||||
|
|
||||||
|
- The 2D framebuffer
|
||||||
|
- 3D regions
|
||||||
|
- Video overlay regions
|
||||||
|
- The virtual hardware mouse cursor ("cursor bypass")
|
||||||
|
- The physical hardware mouse cursor ("host cursor")
|
||||||
|
|
||||||
|
It is important to note that host-executed 2D graphics commands do not
|
||||||
|
necessarily modify the 2D framebuffer, they may write directly to the
|
||||||
|
physical display or display window. Like a physical video card, the
|
||||||
|
VMware SVGA device's framebuffer is never modified by a mouse cursor
|
||||||
|
or video overlay. Unlike a physical video card, however, 3D display
|
||||||
|
regions in the VMware SVGA device may or may not modify the 2D
|
||||||
|
framebuffer.
|
||||||
|
|
||||||
|
The following basic 2D operations are available:
|
||||||
|
|
||||||
|
* Update
|
||||||
|
|
||||||
|
Redraw a portion of the screen, using data from the 2D
|
||||||
|
framebuffer. Any update rectangles are subtracted from the set of
|
||||||
|
on-screen 3D regions, so 2D updates always overwrite 3D regions. 2D
|
||||||
|
updates still appear behind video overlays and mouse cursors.
|
||||||
|
|
||||||
|
An update command must be sent any time the driver wishes to make
|
||||||
|
changes to the 2D framebuffer available. The user-visible screen is
|
||||||
|
not guaranteed to update unless an explicit update command is sent.
|
||||||
|
|
||||||
|
Also note that the SVGA device is allowed to read the 2D framebuffer
|
||||||
|
even if no update command has been sent. For example, if the virtual
|
||||||
|
machine is running in a partially obscured window, the SVGA device
|
||||||
|
will read the 2D framebuffer immediately when the window is uncovered
|
||||||
|
in order to draw the newly visible portion of the VM's window.
|
||||||
|
|
||||||
|
This means that the virtual machine must not treat the 2D framebuffer
|
||||||
|
as a back-buffer. It must contain a completely rendered image at all
|
||||||
|
times.
|
||||||
|
|
||||||
|
There is not yet any way to synchronize updates with the vertical
|
||||||
|
refresh. Current VMware SVGA devices may suffer from tearing
|
||||||
|
artifacts.
|
||||||
|
|
||||||
|
* 2D acceleration operations
|
||||||
|
|
||||||
|
These include fills, copies, and various kinds of blits. All 2D
|
||||||
|
acceleration operations happen directly on the user-visible screen,
|
||||||
|
not in 2D framebuffer memory.
|
||||||
|
|
||||||
|
Use of the 2D acceleration operations is encouraged only in very
|
||||||
|
limited circumstances. For example, when moving or scrolling
|
||||||
|
windows. Mixing accelerated and unaccelerated 2D operations is
|
||||||
|
difficult to implement properly, and incurs a significant
|
||||||
|
synchronization penalty.
|
||||||
|
|
||||||
|
* Present 3D surface
|
||||||
|
|
||||||
|
"Present" is an SVGA3D command which copies a finished image from an
|
||||||
|
SVGA3D surface to the user-visible screen. It may or may not update
|
||||||
|
the 2D framebuffer in the process.
|
||||||
|
|
||||||
|
Present commands effectively create a 3D overlay on top of part of the
|
||||||
|
2D framebuffer. This overlay can be overwritten by Update commands or
|
||||||
|
by other Present commands.
|
||||||
|
|
||||||
|
Present is the only way in which the 2D and 3D portions of the VMware
|
||||||
|
SVGA device interact.
|
||||||
|
|
||||||
|
* Video overlay operations
|
||||||
|
|
||||||
|
The SVGA device defines a group of virtual "video overlay units", each
|
||||||
|
of which can color-convert, scale, and display a frame of YUV video
|
||||||
|
overlayed with the 2D framebuffer. Overlay units each have a set of
|
||||||
|
virtual registers which are configured using the commands in
|
||||||
|
svga_overlay.h.
|
||||||
|
|
||||||
|
* Virtual mouse cursor operations
|
||||||
|
|
||||||
|
The virtual mouse cursor is an overlay which shows the SVGA device's
|
||||||
|
current cursor image at a particular location. It may not be
|
||||||
|
hardware-accelerated by the physical machine, and it does not
|
||||||
|
necessarily correspond with the position of the user's physical mouse.
|
||||||
|
|
||||||
|
There are three "Cursor Bypass" mechanisms by which the virtual
|
||||||
|
machine can set the position of the virtual mouse cursor. Cursor
|
||||||
|
bypass 1 did not follow the overlay model described above, and it has
|
||||||
|
long been obsolete. Cursor bypass 2 and 3 are functionally equivalent,
|
||||||
|
except that cursor bypass 2 operates via non-FIFO registers and cursor
|
||||||
|
bypass 3 operates via FIFO registers. If cursor bypass 3 is supported
|
||||||
|
(SVGA_FIFO_CAP_CURSOR_BYPASS_3), it should be used instead of cursor
|
||||||
|
bypass 2.
|
||||||
|
|
||||||
|
For all forms of cursor bypass, the cursor image is defined by
|
||||||
|
SVGA_CMD_DEFINE_CURSOR.
|
||||||
|
|
||||||
|
* Physical mouse cursor operations
|
||||||
|
|
||||||
|
The virtual machine does not define the location of the physical mouse
|
||||||
|
cursor, but it can define the cursor image and hide/show it. It does
|
||||||
|
so using the SVGA_CMD_DEFINE_CURSOR and SVGA_CMD_DISPLAY_CURSOR
|
||||||
|
commands.
|
||||||
|
|
||||||
|
|
||||||
|
5. 3D Graphics Model
|
||||||
|
---------------------
|
||||||
|
|
||||||
|
The VMware SVGA device supports hardware-independent accelerated 3D
|
||||||
|
graphics via the "SVGA3D" protocol. This is a set of extended FIFO
|
||||||
|
commands. SVGA3D utilizes the same underlying FIFO and synchronization
|
||||||
|
primitives as the 2D portion of the SVGA device, but the 2D and 3D
|
||||||
|
portions of the device are largely independent.
|
||||||
|
|
||||||
|
The SVGA3D protocol is relatively high-level. The device is
|
||||||
|
responsible for tracking render state among multiple contexts, for
|
||||||
|
managing physical VRAM, and for implementing both fixed-function and
|
||||||
|
programmable vertex and pixel processing.
|
||||||
|
|
||||||
|
The SVGA3D protocol is designed to be vendor- and API-neutral, but for
|
||||||
|
convenience it has been designed to be compatible with Direct3D in
|
||||||
|
most places. The shader bytecode is fully binary-compatible with
|
||||||
|
Direct3D bytecode, and most render states are identical to those
|
||||||
|
defined by Direct3D.
|
||||||
|
|
||||||
|
Note that the VMware SVGA device still supports 3D acceleration on all
|
||||||
|
operating systems that VMware products run on. Internally, hardware
|
||||||
|
accelerated 3D is implemented on top of the OpenGL graphics API.
|
||||||
|
|
||||||
|
To summarize the SVGA3D device's design:
|
||||||
|
|
||||||
|
* SVGA3D is an extension to the VMware SVGA device's command FIFO
|
||||||
|
protocol.
|
||||||
|
|
||||||
|
* In some ways it looks like a graphics API:
|
||||||
|
|
||||||
|
o SVGA3D device manages all physical VRAM allocation.
|
||||||
|
o High-level render states, relatively high-level shader bytecode.
|
||||||
|
|
||||||
|
* In some ways it looks like hardware:
|
||||||
|
|
||||||
|
o All commands are executed asynchronously.
|
||||||
|
o Driver must track memory ownership, schedule DMA transfers.
|
||||||
|
o All physical VRAM represented by generic "Surface" objects
|
||||||
|
|
||||||
|
* Supports both fixed-function and programmable vertex and fragment
|
||||||
|
pipelines.
|
||||||
|
|
||||||
|
|
||||||
|
6. Overview of SVGA3D features
|
||||||
|
------------------------------
|
||||||
|
|
||||||
|
* Capabilities
|
||||||
|
|
||||||
|
o Extensible key/value pair list describes the SVGA3D device's
|
||||||
|
capabilities.
|
||||||
|
|
||||||
|
o Number of texture image units, max texture size, number of
|
||||||
|
lights, texture formats, etc.
|
||||||
|
|
||||||
|
* Surfaces
|
||||||
|
|
||||||
|
o Formats: 8-bit RGB/RGBA, 16-bit RGB/RGBA, depth, packed
|
||||||
|
depth/stencil, luminance/alpha, DXT compressed, signed, floating
|
||||||
|
point, etc.
|
||||||
|
|
||||||
|
o Supports 3D (volume) textures, cube maps,.
|
||||||
|
|
||||||
|
o Surfaces are also used as vertex and index buffers.
|
||||||
|
|
||||||
|
o Generic DMA blits between surfaces and system memory or
|
||||||
|
offscreen "virtual VRAM".
|
||||||
|
|
||||||
|
o Generic surface-to-surface blits, with and without scaling.
|
||||||
|
|
||||||
|
* Contexts
|
||||||
|
|
||||||
|
o Surfaces are global, other objects are per-context, render
|
||||||
|
states are per-context.
|
||||||
|
|
||||||
|
o Commands to create/delete contexts.
|
||||||
|
|
||||||
|
* Render State (Mostly Direct3D-style)
|
||||||
|
|
||||||
|
o Matrices
|
||||||
|
|
||||||
|
o Texture stage states: Filtering, combiners, LOD, gamma
|
||||||
|
correction, etc.
|
||||||
|
|
||||||
|
o Stencil, depth, culling, blending, lighting, materials, etc.
|
||||||
|
|
||||||
|
* Render Targets
|
||||||
|
|
||||||
|
o Few restrictions on which surfaces can be used as render
|
||||||
|
targets (More lenient than OpenGL FBOs)
|
||||||
|
|
||||||
|
o Supports depth, stencil, color buffer(s)
|
||||||
|
|
||||||
|
* Present
|
||||||
|
|
||||||
|
o The "present" operation is a blit from an SVGA3D surface back
|
||||||
|
to the user-visible screen.
|
||||||
|
|
||||||
|
o May or may not update the guest-visible 2D framebuffer.
|
||||||
|
|
||||||
|
* Occlusion queries
|
||||||
|
|
||||||
|
o Submitted via FIFO commands
|
||||||
|
|
||||||
|
o Results returned asynchronously: a results structure is filled
|
||||||
|
in via DMA.
|
||||||
|
|
||||||
|
* Shaders
|
||||||
|
|
||||||
|
o We define an "SVGA3D bytecode", which is binary-compatible
|
||||||
|
with Direct3D's shader bytecode.
|
||||||
|
|
||||||
|
o SVGA3D may define extensions to the bytecode format in the future.
|
||||||
|
|
||||||
|
* Drawing
|
||||||
|
|
||||||
|
o A single generic "draw primitives" command performs a list of
|
||||||
|
rendering operations from a list of vertex buffers.
|
||||||
|
|
||||||
|
o Index buffer is optional.
|
||||||
|
|
||||||
|
o Similar to drawing with OpenGL vertex arrays and VBOs.
|
||||||
|
|
||||||
|
|
||||||
|
7. Programming the VMware SVGA Device
|
||||||
|
-------------------------------------
|
||||||
|
|
||||||
|
1. Reading/writing a register:
|
||||||
|
|
||||||
|
The SVGA registers are addressed by an index/value pair of 32 bit
|
||||||
|
registers in the IO address space.
|
||||||
|
|
||||||
|
The 0710 VMware SVGA chipset (PCI device ID PCI_DEVICE_ID_VMWARE_SVGA) has
|
||||||
|
its index and value ports hardcoded at:
|
||||||
|
|
||||||
|
index: SVGA_LEGACY_BASE_PORT + 4 * SVGA_INDEX_PORT
|
||||||
|
value: SVGA_LEGACY_BASE_PORT + 4 * SVGA_VALUE_PORT
|
||||||
|
|
||||||
|
The 0405 VMware SVGA chipset (PCI device ID PCI_DEVICE_ID_VMWARE_SVGA2)
|
||||||
|
determines its index and value ports as a function of the first base
|
||||||
|
address register in its PCI configuration space as:
|
||||||
|
|
||||||
|
index: <Base Address Register 0> + SVGA_INDEX_PORT
|
||||||
|
value: <Base Address Register 0> + SVGA_VALUE_PORT
|
||||||
|
|
||||||
|
To read a register:
|
||||||
|
Set the index port to the index of the register, using a dword OUT
|
||||||
|
Do a dword IN from the value port
|
||||||
|
|
||||||
|
To write a register:
|
||||||
|
Set the index port to the index of the register, using a dword OUT
|
||||||
|
Do a dword OUT to the value port
|
||||||
|
|
||||||
|
Example, setting the width to 1024:
|
||||||
|
|
||||||
|
mov eax, SVGA_REG_WIDTH
|
||||||
|
mov edx, <SVGA Address Port>
|
||||||
|
out dx, eax
|
||||||
|
mov eax, 1024
|
||||||
|
mov edx, <SVGA Value Port>
|
||||||
|
out dx, eax
|
||||||
|
|
||||||
|
2. Initialization
|
||||||
|
|
||||||
|
Check the version number
|
||||||
|
loop:
|
||||||
|
Write into SVGA_REG_ID the maximum SVGA_ID_* the driver supports.
|
||||||
|
Read from SVGA_REG_ID.
|
||||||
|
Check if it is the value you wrote.
|
||||||
|
If yes, VMware SVGA device supports it
|
||||||
|
If no, decrement SVGA_ID_* and goto loop
|
||||||
|
This algorithm converges.
|
||||||
|
|
||||||
|
Map the frame buffer and the command FIFO
|
||||||
|
Read SVGA_REG_FB_START, SVGA_REG_FB_SIZE, SVGA_REG_MEM_START,
|
||||||
|
SVGA_REG_MEM_SIZE.
|
||||||
|
Map the frame buffer (FB) and the FIFO memory (MEM).
|
||||||
|
|
||||||
|
This step must occur after the version negotiation above, since by
|
||||||
|
default the device is in a legacy-compatibility mode in which there
|
||||||
|
is no command FIFO.
|
||||||
|
|
||||||
|
Get the device capabilities and frame buffer dimensions
|
||||||
|
Read SVGA_REG_CAPABILITIES, SVGA_REG_MAX_WIDTH, SVGA_REG_MAX_HEIGHT,
|
||||||
|
and SVGA_REG_HOST_BITS_PER_PIXEL / SVGA_REG_BITS_PER_PIXEL.
|
||||||
|
|
||||||
|
Note: The capabilities can and do change without the PCI device ID
|
||||||
|
changing or the SVGA_REG_ID changing. A driver should always check
|
||||||
|
the capabilities register when loading before expecting any
|
||||||
|
capabilities-determined feature to be available. See below for a list
|
||||||
|
of capabilities as of this writing.
|
||||||
|
|
||||||
|
Note: If SVGA_CAP_8BIT_EMULATION is not set, then it is possible that
|
||||||
|
SVGA_REG_HOST_BITS_PER_PIXEL does not exist and
|
||||||
|
SVGA_REG_BITS_PER_PIXEL should be read instead.
|
||||||
|
|
||||||
|
Optional: Report the Guest Operating System
|
||||||
|
Write SVGA_REG_GUEST_ID with the appropriate value from <guest_os.h>.
|
||||||
|
While not required in any way, this is useful information for the
|
||||||
|
virtual machine to have available for reporting and sanity checking
|
||||||
|
purposes.
|
||||||
|
|
||||||
|
SetMode
|
||||||
|
Set SVGA_REG_WIDTH, SVGA_REG_HEIGHT, SVGA_REG_BITS_PER_PIXEL
|
||||||
|
Read SVGA_REG_FB_OFFSET
|
||||||
|
(SVGA_REG_FB_OFFSET is the offset from SVGA_REG_FB_START of the
|
||||||
|
visible portion of the frame buffer)
|
||||||
|
Read SVGA_REG_BYTES_PER_LINE, SVGA_REG_DEPTH, SVGA_REG_PSEUDOCOLOR,
|
||||||
|
SVGA_REG_RED_MASK, SVGA_REG_GREEN_MASK, SVGA_REG_BLUE_MASK
|
||||||
|
|
||||||
|
Note: SVGA_REG_BITS_PER_PIXEL is readonly if
|
||||||
|
SVGA_CAP_8BIT_EMULATION is not set in the capabilities register. Even
|
||||||
|
if it is set, values other than 8 and SVGA_REG_HOST_BITS_PER_PIXEL
|
||||||
|
will be ignored.
|
||||||
|
|
||||||
|
Enable SVGA
|
||||||
|
Set SVGA_REG_ENABLE to 1
|
||||||
|
(to disable SVGA, set SVGA_REG_ENABLE to 0. Setting SVGA_REG_ENABLE
|
||||||
|
to 0 also enables VGA.)
|
||||||
|
|
||||||
|
Initialize the command FIFO
|
||||||
|
The FIFO is exclusively dword (32-bit) aligned. The first four
|
||||||
|
dwords define the portion of the MEM area that is used for the
|
||||||
|
command FIFO. These are values are all in byte offsets from the
|
||||||
|
start of the MEM area.
|
||||||
|
|
||||||
|
A minimum sized FIFO would have these values:
|
||||||
|
mem[SVGA_FIFO_MIN] = 16;
|
||||||
|
mem[SVGA_FIFO_MAX] = 16 + (10 * 1024);
|
||||||
|
mem[SVGA_FIFO_NEXT_CMD] = 16;
|
||||||
|
mem[SVGA_FIFO_STOP] = 16;
|
||||||
|
|
||||||
|
Various addresses near the beginning of the FIFO are defined as
|
||||||
|
"FIFO registers" with special meaning. If the driver wishes to
|
||||||
|
take advantage of the special meaning of these addresses rather
|
||||||
|
than using them as part of the command FIFO, the driver must
|
||||||
|
reserve space for these registers when setting up the FIFO.
|
||||||
|
Typically the driver will set MIN to SVGA_FIFO_NUM_REGS*4.
|
||||||
|
|
||||||
|
Report the guest 3D version
|
||||||
|
If your driver supports 3D, write the latest supported 3D
|
||||||
|
version (SVGA3D_HWVERSION_CURRENT) to the
|
||||||
|
SVGA_FIFO_GUEST_3D_HWVERSION register.
|
||||||
|
|
||||||
|
Enable the command FIFO
|
||||||
|
Set SVGA_REG_CONFIG_DONE to 1 after these values have been set.
|
||||||
|
|
||||||
|
Note: Setting SVGA_REG_CONFIG_DONE to 0 will stop the device from
|
||||||
|
reading the FIFO until it is reinitialized and SVGA_REG_CONFIG_DONE is
|
||||||
|
set to 1 again.
|
||||||
|
|
||||||
|
3. SVGA command FIFO protocol
|
||||||
|
|
||||||
|
The FIFO is empty when SVGA_FIFO_NEXT_CMD == SVGA_FIFO_STOP. The
|
||||||
|
driver writes commands to the FIFO starting at the offset specified
|
||||||
|
by SVGA_FIFO_NEXT_CMD, and then increments SVGA_FIFO_NEXT_CMD.
|
||||||
|
|
||||||
|
The FIFO is full when SVGA_FIFO_NEXT_CMD is one word before SVGA_FIFO_STOP.
|
||||||
|
|
||||||
|
When the FIFO becomes full, the driver must wait for space to become
|
||||||
|
available. It can do this via various methods (busy-wait, legacy sync)
|
||||||
|
but the preferred method is to use the FIFO_PROGRESS interrupt.
|
||||||
|
|
||||||
|
The SVGA device does not guarantee that all of FIFO memory is valid
|
||||||
|
at all times. The device is free to discard the contents of any memory
|
||||||
|
which is not part of the active portion of the FIFO. The active portion
|
||||||
|
of the FIFO is defined as the region with valid commands (starting
|
||||||
|
at SVGA_FIFO_STOP and ending at SVGA_FIFO_NEXT_CMD) plus the reserved
|
||||||
|
portion of the FIFO.
|
||||||
|
|
||||||
|
By default, only one word of memory is 'reserved'. If the FIFO supports
|
||||||
|
the SVGA_FIFO_CAP_RESERVE capability, the device supports reserving
|
||||||
|
driver-defined amounts of memory. If both the device and driver support
|
||||||
|
this operation, it's possible to write multiple words of data between
|
||||||
|
updates to the FIFO control registers.
|
||||||
|
|
||||||
|
The simplest way to use the FIFO is to write one word at a time, but the
|
||||||
|
highest-performance way to use the FIFO is to reserve enough space for
|
||||||
|
an entire command or group of commands, write the commands directly to
|
||||||
|
FIFO memory, then "commit" the command(s) by updating the FIFO control
|
||||||
|
registers.
|
||||||
|
|
||||||
|
A reference implementation of this reserve/commit algorithm is provided
|
||||||
|
in svga.c, in SVGA_FIFOReserve() and SVGA_FIFOCommit(). In the common
|
||||||
|
case, this algorithm lets drivers assemble commands directly in FIFO
|
||||||
|
memory without any additional copies or memory allocation.
|
||||||
|
|
||||||
|
4. Synchronization
|
||||||
|
|
||||||
|
The primary synchronization primitive defined by the SVGA device is
|
||||||
|
"Sync to fence". A "fence" is a numbered marker inserted into the FIFO
|
||||||
|
command stream. The driver can insert fences at any time, and efficiently
|
||||||
|
determine the value of the last fence processed by the device.
|
||||||
|
|
||||||
|
"Sync to fence" is the process of waiting for a particular fence to be
|
||||||
|
processed. This may be important for several reasons:
|
||||||
|
|
||||||
|
- Flow control. For interactivity, it is important to put an upper
|
||||||
|
limit on the amount by which the device may lag the application.
|
||||||
|
|
||||||
|
- Waiting for DMA completion. If the driver needs to recycle a DMA
|
||||||
|
buffer or complete a DMA operation synchronously, it must sync
|
||||||
|
to a fence which occurred after the DMA operation in the command
|
||||||
|
stream.
|
||||||
|
|
||||||
|
- Waiting for accelerated 2D operations. If a 2D driver needs to
|
||||||
|
write to a portion of the framebuffer which is affected by
|
||||||
|
an accelerated blit, it should sync to a fence which occurred
|
||||||
|
after the blit.
|
||||||
|
|
||||||
|
There are multiple possible implementations of Sync to Fence, depending
|
||||||
|
on the capabilities of the SVGA device you're driving. Very old versions
|
||||||
|
of the VMware SVGA device did not support fences at all. For these
|
||||||
|
devices, you must always perform a "legacy sync". New virtual machines
|
||||||
|
with Workstation 6.5 virtual hardware or later support an IRQ-driven
|
||||||
|
sync operation. For all other versions of the SVGA device, the best
|
||||||
|
approach is a hybrid in which you synchronously use the SYNC/BUSY
|
||||||
|
registers to process the FIFO until the sync has passed.
|
||||||
|
|
||||||
|
FIFO synchronization is a very complex topic, and it isn't covered fully
|
||||||
|
by this document. Please see the synchronization-related comments in
|
||||||
|
svga_reg.h, and the reference implementation of these primitives in
|
||||||
|
svga.c.
|
||||||
|
|
||||||
|
5. Cursor
|
||||||
|
|
||||||
|
When SVGA_CAP_CURSOR is set, hardware cursor support is available. In
|
||||||
|
practice, SVGA_CAP_CURSOR will only be set when SVGA_CAP_CURSOR_BYPASS is
|
||||||
|
also set and drivers supporting a hardware cursor should only worry about
|
||||||
|
SVGA_CAP_CURSOR_BYPASS and only use the FIFO to define the cursor. See
|
||||||
|
below for more information.
|
||||||
|
|
||||||
|
6. Pseudocolor
|
||||||
|
|
||||||
|
When the read-only register SVGA_REG_PSEUDOCOLOR is 1, the device is in a
|
||||||
|
colormapped mode whose index width and color width are both SVGA_REG_DEPTH.
|
||||||
|
Thus far, 8 is the only depth at which pseudocolor is ever used.
|
||||||
|
|
||||||
|
In pseudocolor, the colormap is programmed by writing to the SVGA palette
|
||||||
|
registers. These start at SVGA_PALETTE_BASE and are interpreted as
|
||||||
|
follows:
|
||||||
|
|
||||||
|
SVGA_PALETTE_BASE + 3*n - The nth red component
|
||||||
|
SVGA_PALETTE_BASE + 3*n + 1 - The nth green component
|
||||||
|
SVGA_PALETTE_BASE + 3*n + 2 - The nth blue component
|
||||||
|
|
||||||
|
And n ranges from 0 to ((1<<SVGA_REG_DEPTH) - 1).
|
||||||
|
|
||||||
|
7. Pseudocolor
|
||||||
|
|
||||||
|
After initialization, the driver can write directly to the frame
|
||||||
|
buffer. The updated frame buffer is not displayed immediately, but
|
||||||
|
only when an update command is sent. The update command
|
||||||
|
(SVGA_CMD_UPDATE) defines the rectangle in the frame buffer that has
|
||||||
|
been modified by the driver, and causes that rectangle to be updated
|
||||||
|
on the screen.
|
||||||
|
|
||||||
|
A complete driver can be developed this way. For increased
|
||||||
|
performance, additional commands are available to accelerate common
|
||||||
|
operations. The two most useful are SVGA_CMD_RECT_FILL and
|
||||||
|
SVGA_CMD_RECT_COPY.
|
||||||
|
|
||||||
|
After issuing an accelerated command, the FIFO should be sync'd, as
|
||||||
|
described above, before writing to the frame buffer.
|
||||||
|
|
||||||
|
|
||||||
|
SVGA_REG_FB_OFFSET and SVGA_REG_BYTES_PER_LINE may change after SVGA_REG_WIDTH
|
||||||
|
or SVGA_REG_HEIGHT is set. Also the VGA registers must be written to after
|
||||||
|
setting SVGA_REG_ENABLE to 0 to change the display to a VGA mode.
|
||||||
|
|
||||||
|
8. Mode changes
|
||||||
|
|
||||||
|
The video mode may be changed by writing to the WIDTH, HEIGHT,
|
||||||
|
and/or DEPTH registers again, after initialization. All of the
|
||||||
|
registers listed in the 'SetMode' initialization section above
|
||||||
|
should be reread afterwards. Additionally, when changing modes, it
|
||||||
|
can be convenient to set SVGA_REG_ENABLE to 0, change
|
||||||
|
SVGA_REG_WIDTH, SVGA_REG_HEIGHT, and SVGA_REG_BITS_PER_PIXEL (if
|
||||||
|
available), and then set SVGA_REG_ENABLE to 1 again. This is
|
||||||
|
optional, but it will avoid intermediate states in which only one
|
||||||
|
component of the new mode has been set.
|
||||||
|
|
||||||
|
|
||||||
|
9. Capabilities
|
||||||
|
|
||||||
|
The capabilities register (SVGA_REG_CAPABILITIES) is an array of bits that
|
||||||
|
indicates the capabilities of the SVGA emulation. A driver should check
|
||||||
|
SVGA_REG_CAPABILITIES every time it loads before relying on any feature that
|
||||||
|
is only optionally available.
|
||||||
|
|
||||||
|
XXX: There is also a capabilities register in the FIFO register space.
|
||||||
|
It is not documented in this file, but all of the available bits
|
||||||
|
are listed in svga_reg.h.
|
||||||
|
|
||||||
|
Some of the capabilities determine which FIFO commands are available. This
|
||||||
|
table shows which capability indicates support for which command.
|
||||||
|
|
||||||
|
FIFO Command Capability
|
||||||
|
------------ ----------
|
||||||
|
|
||||||
|
SVGA_CMD_RECT_FILL SVGA_CAP_RECT_FILL
|
||||||
|
SVGA_CMD_RECT_COPY SVGA_CAP_RECT_COPY
|
||||||
|
SVGA_CMD_DEFINE_BITMAP SVGA_CAP_OFFSCREEN
|
||||||
|
SVGA_CMD_DEFINE_BITMAP_SCANLINE SVGA_CAP_OFFSCREEN
|
||||||
|
SVGA_CMD_DEFINE_PIXMAP SVGA_CAP_OFFSCREEN
|
||||||
|
SVGA_CMD_DEFINE_PIXMAP_SCANLINE SVGA_CAP_OFFSCREEN
|
||||||
|
SVGA_CMD_RECT_BITMAP_FILL SVGA_CAP_RECT_PAT_FILL
|
||||||
|
SVGA_CMD_RECT_PIXMAP_FILL SVGA_CAP_RECT_PAT_FILL
|
||||||
|
SVGA_CMD_RECT_BITMAP_COPY SVGA_CAP_RECT_PAT_FILL
|
||||||
|
SVGA_CMD_RECT_PIXMAP_COPY SVGA_CAP_RECT_PAT_FILL
|
||||||
|
SVGA_CMD_FREE_OBJECT SVGA_CAP_OFFSCREEN
|
||||||
|
SVGA_CMD_RECT_ROP_FILL SVGA_CAP_RECT_FILL +
|
||||||
|
SVGA_CAP_RASTER_OP
|
||||||
|
SVGA_CMD_RECT_ROP_COPY SVGA_CAP_RECT_COPY +
|
||||||
|
SVGA_CAP_RASTER_OP
|
||||||
|
SVGA_CMD_RECT_ROP_BITMAP_FILL SVGA_CAP_RECT_PAT_FILL +
|
||||||
|
SVGA_CAP_RASTER_OP
|
||||||
|
SVGA_CMD_RECT_ROP_PIXMAP_FILL SVGA_CAP_RECT_PAT_FILL +
|
||||||
|
SVGA_CAP_RASTER_OP
|
||||||
|
SVGA_CMD_RECT_ROP_BITMAP_COPY SVGA_CAP_RECT_PAT_FILL +
|
||||||
|
SVGA_CAP_RASTER_OP
|
||||||
|
SVGA_CMD_RECT_ROP_PIXMAP_COPY SVGA_CAP_RECT_PAT_FILL +
|
||||||
|
SVGA_CAP_RASTER_OP
|
||||||
|
SVGA_CMD_DEFINE_CURSOR SVGA_CAP_CURSOR
|
||||||
|
SVGA_CMD_DISPLAY_CURSOR SVGA_CAP_CURSOR
|
||||||
|
SVGA_CMD_MOVE_CURSOR SVGA_CAP_CURSOR
|
||||||
|
SVGA_CMD_DEFINE_ALPHA_CURSOR SVGA_CAP_ALPHA_CURSOR
|
||||||
|
SVGA_CMD_DRAW_GLYPH SVGA_CAP_GLYPH
|
||||||
|
SVGA_CMD_DRAW_GLYPH_CLIPPED SVGA_CAP_GLYPH_CLIPPING
|
||||||
|
SVGA_CMD_ESCAPE SVGA_FIFO_CAP_ESCAPE
|
||||||
|
|
||||||
|
(NOTE: Many of the commands here are deprecated, and listed
|
||||||
|
in the table only for reference. All comments for glyph,
|
||||||
|
bitmap, and pixmap drawing are not implemented in the
|
||||||
|
latest releases of VMware products.)
|
||||||
|
|
||||||
|
Other capabilities indicate other functionality as described below:
|
||||||
|
|
||||||
|
SVGA_CAP_CURSOR_BYPASS
|
||||||
|
The hardware cursor can be drawn via SVGA Registers (without requiring
|
||||||
|
the FIFO be synchronized and will be drawn potentially before any
|
||||||
|
outstanding unprocessed FIFO commands).
|
||||||
|
|
||||||
|
Note: Without SVGA_CAP_CURSOR_BYPASS_2, cursors drawn this way still
|
||||||
|
appear in the guest's framebuffer and need to be turned off before any
|
||||||
|
save under / overlapping drawing and turned back on after. This can
|
||||||
|
cause very noticeable cursor flicker.
|
||||||
|
|
||||||
|
SVGA_CAP_CURSOR_BYPASS_2
|
||||||
|
Instead of turning the cursor off and back on around any overlapping
|
||||||
|
drawing, the driver can write SVGA_CURSOR_ON_REMOVE_FROM_FB and
|
||||||
|
SVGA_CURSOR_ON_RESTORE_TO_FB to SVGA_REG_CURSOR_ON. In almost all
|
||||||
|
cases these are NOPs and the cursor will be remain visible without
|
||||||
|
appearing in the guest framebuffer. In 'direct graphics' modes like
|
||||||
|
Linux host fullscreen local displays, however, the cursor will still
|
||||||
|
be drawn in the framebuffer, still flicker, and be drawn incorrectly
|
||||||
|
if a driver does not use SVGA_CURSOR_ON_REMOVE_FROM_FB / RESTORE_TO_FB.
|
||||||
|
|
||||||
|
SVGA_CAP_8BIT_EMULATION
|
||||||
|
SVGA_REG_BITS_PER_PIXEL is writable and can be set to either 8 or
|
||||||
|
SVGA_REG_HOST_BITS_PER_PIXEL. Otherwise the only SVGA modes available
|
||||||
|
inside a virtual machine must match the host's bits per pixel.
|
||||||
|
|
||||||
|
Note: Some versions which lack SVGA_CAP_8BIT_EMULATION also lack the
|
||||||
|
SVGA_REG_HOST_BITS_PER_PIXEL and a driver should assume
|
||||||
|
SVGA_REG_BITS_PER_PIXEL is both read-only and initialized to the only
|
||||||
|
available value if SVGA_CAP_8BIT_EMULATION is not set.
|
||||||
|
|
||||||
|
SVGA_CAP_OFFSCREEN_1
|
||||||
|
SVGA_CMD_RECT_FILL, SVGA_CMD_RECT_COPY, SVGA_CMD_RECT_ROP_FILL,
|
||||||
|
SVGA_CMD_RECT_ROP_COPY can operate with a source or destination (or
|
||||||
|
both) in offscreen memory.
|
||||||
|
|
||||||
|
Usable offscreen memory is a rectangle located below the last scanline
|
||||||
|
of the visible memory:
|
||||||
|
x1 = 0
|
||||||
|
y1 = (SVGA_REG_FB_SIZE + SVGA_REG_BYTES_PER_LINE - 1) /
|
||||||
|
SVGA_REG_BYTES_PER_LINE
|
||||||
|
x2 = SVGA_REG_BYTES_PER_LINE / SVGA_REG_DEPTH
|
||||||
|
y2 = SVGA_REG_VRAM_SIZE / SVGA_REG_BYTES_PER_LINE
|
||||||
|
|
||||||
|
|
||||||
|
Cursor Handling
|
||||||
|
---------------
|
||||||
|
|
||||||
|
Several cursor drawing mechanisms are supported for legacy
|
||||||
|
compatibility. The current mechanism, and the only one that new
|
||||||
|
drivers need support, is "Cursor Bypass 3".
|
||||||
|
|
||||||
|
In Cursor Bypass 3 mode, the cursor image is defined via FIFO
|
||||||
|
commands, but the cursor position and visibility is reported
|
||||||
|
asynchronously by writing to FIFO registers.
|
||||||
|
|
||||||
|
A driver defines an AND/XOR hardware cursor using
|
||||||
|
SVGA_CMD_DEFINE_CURSOR to assign an ID and establish the AND and XOR
|
||||||
|
masks with the hardware. A driver uses SVGA_CMD_DEFINE_ALPHA_CURSOR
|
||||||
|
to define a 32 bit mask whose top 8 bits are used to blend the cursor
|
||||||
|
image with the pixels it covers. Alpha cursor support is only
|
||||||
|
available when SVGA_CAP_ALPHA_CURSOR is set. Note that alpha cursors
|
||||||
|
use pre-multiplied alpha.
|
||||||
|
|
||||||
|
---
|
||||||
6
examples/2dmark/Makefile
Normal file
6
examples/2dmark/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = 2dmark.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
148
examples/2dmark/main.c
Normal file
148
examples/2dmark/main.c
Normal file
|
|
@ -0,0 +1,148 @@
|
||||||
|
/*
|
||||||
|
* Simple 2D graphics benchmark.
|
||||||
|
*
|
||||||
|
* The VMware SVGA device typically coalesces update rectangles and
|
||||||
|
* processes them asynchronously. This makes it difficult to get
|
||||||
|
* meaningful 2D benchmark numbers from tools which run inside a
|
||||||
|
* normal guest OS.
|
||||||
|
*
|
||||||
|
* This tool sweeps through multiple 2D update sizes on multiple
|
||||||
|
* video modes. After the test, results are summarized to the screen
|
||||||
|
* (in VGA text mode) and to vmware.log.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga.h"
|
||||||
|
#include "intr.h"
|
||||||
|
#include "console_vga.h"
|
||||||
|
#include "vmbackdoor.h"
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
|
||||||
|
struct {
|
||||||
|
uint32 value;
|
||||||
|
const char *label;
|
||||||
|
} sizes[] = {
|
||||||
|
{ 1, " 1" },
|
||||||
|
{ 8, " 8" },
|
||||||
|
{ 64, " 64" },
|
||||||
|
{ 233, " 233" }, /* Prime */
|
||||||
|
{ 256, " 256" },
|
||||||
|
{ 2048, " 2048" },
|
||||||
|
{ 2099, " 2099" }, /* Prime */
|
||||||
|
{ 4096, " 4096" },
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* benchmarkAtSize --
|
||||||
|
*
|
||||||
|
* Inner benchmarking loop, tests one combination of fb and update sizes.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static FPSCounterState *
|
||||||
|
benchmarkAtSize(uint32 screen, uint32 update)
|
||||||
|
{
|
||||||
|
int i = 3;
|
||||||
|
static FPSCounterState fps;
|
||||||
|
|
||||||
|
memset(&fps, 0, sizeof fps);
|
||||||
|
|
||||||
|
/* Clear the screen and change modes */
|
||||||
|
memset(gSVGA.fbMem, 0x40, screen * screen * sizeof(uint32));
|
||||||
|
SVGA_SetMode(screen, screen, 32);
|
||||||
|
|
||||||
|
/* Make sure the FIFO is empty */
|
||||||
|
SVGA_SyncToFence(SVGA_InsertFence());
|
||||||
|
|
||||||
|
/*
|
||||||
|
* UpdateFPSCounter returns TRUE each time it's output is updated.
|
||||||
|
* The first time, it won't have an FPS reading available yet. (It is
|
||||||
|
* guaranteed to return TRUE on its first call.) The second time,
|
||||||
|
* an FPS reading will be ready. We wait until the third time, in
|
||||||
|
* order to give the readings extra time to stabilize.
|
||||||
|
*
|
||||||
|
* Note that the 'i--' part of this expression only executes when
|
||||||
|
* UpdateFPSCounter returns TRUE.
|
||||||
|
*/
|
||||||
|
do {
|
||||||
|
/* Synchronously update the screen */
|
||||||
|
SVGA_Update(0, 0, update, update);
|
||||||
|
SVGA_SyncToFence(SVGA_InsertFence());
|
||||||
|
} while (!SVGA3DUtil_UpdateFPSCounter(&fps) || i--);
|
||||||
|
|
||||||
|
return &fps;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* runBenchmark --
|
||||||
|
*
|
||||||
|
* Main benchmark loop. Run through all valid combinations
|
||||||
|
* of update and display sizes.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
runBenchmark()
|
||||||
|
{
|
||||||
|
const int numSizes = sizeof sizes / sizeof sizes[0];
|
||||||
|
int i, j;
|
||||||
|
|
||||||
|
Console_WriteString("Synchronous 2D updates per second.\n"
|
||||||
|
"Video mode width/height on Y axis, update size on X axis.\n"
|
||||||
|
"\n");
|
||||||
|
|
||||||
|
/* Size headings across the top of the screen */
|
||||||
|
Console_WriteString(" | ");
|
||||||
|
for (i = 0; i < numSizes; i++) {
|
||||||
|
Console_WriteString(" ");
|
||||||
|
Console_WriteString(sizes[i].label);
|
||||||
|
}
|
||||||
|
Console_WriteString("\n");
|
||||||
|
for (i = 0; i < 79; i++) {
|
||||||
|
Console_WriteString("-");
|
||||||
|
}
|
||||||
|
Console_WriteString("\n");
|
||||||
|
|
||||||
|
for (i = 0; i < numSizes; i++) {
|
||||||
|
Console_Format("%s | ", sizes[i].label);
|
||||||
|
|
||||||
|
for (j = 0; j <= i; j++) {
|
||||||
|
char *fps = benchmarkAtSize(sizes[i].value, sizes[j].value)->text;
|
||||||
|
|
||||||
|
/* Hack to make the string shorter by cutting off "FPS" label. */
|
||||||
|
fps[7] = '\0';
|
||||||
|
|
||||||
|
Console_Format(" %s", fps);
|
||||||
|
}
|
||||||
|
|
||||||
|
Console_WriteString("\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
Console_WriteString("\nBenchmark complete. Results are "
|
||||||
|
"also available in the VMX log.");
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Initialization and results reporting.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
Intr_Init();
|
||||||
|
Intr_SetFaultHandlers(SVGA_DefaultFaultHandler);
|
||||||
|
ConsoleVGA_Init();
|
||||||
|
SVGA_Init();
|
||||||
|
|
||||||
|
runBenchmark();
|
||||||
|
|
||||||
|
SVGA_Disable();
|
||||||
|
VMBackdoor_VGAScreenshot();
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
11
examples/Makefile
Normal file
11
examples/Makefile
Normal file
|
|
@ -0,0 +1,11 @@
|
||||||
|
SUBDIRS = $(subst /Makefile,,$(wildcard */Makefile))
|
||||||
|
|
||||||
|
.PHONY: subdirs clean $(SUBDIRS)
|
||||||
|
|
||||||
|
subdirs: $(SUBDIRS)
|
||||||
|
|
||||||
|
$(SUBDIRS):
|
||||||
|
$(MAKE) -C $@
|
||||||
|
|
||||||
|
clean:
|
||||||
|
for dir in $(SUBDIRS); do $(MAKE) -C $$dir clean; done
|
||||||
6
examples/blit-cube/Makefile
Normal file
6
examples/blit-cube/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = blit-cube.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
349
examples/blit-cube/main.c
Normal file
349
examples/blit-cube/main.c
Normal file
|
|
@ -0,0 +1,349 @@
|
||||||
|
/*
|
||||||
|
* SVGA3D example: Spinning cube, with various blit operations.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
#include "matrix.h"
|
||||||
|
#include "math.h"
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
float position[3];
|
||||||
|
float texcoord[2];
|
||||||
|
float color[3];
|
||||||
|
} MyVertex;
|
||||||
|
|
||||||
|
static const MyVertex vertexData[] = {
|
||||||
|
{ {-1, -1, -1}, { 0, 0 }, {0.5, 0.5, 0.5} }, /* -X */
|
||||||
|
{ {-1, -1, 1}, { 0, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
{ {-1, 1, -1}, { 1, 0 }, {0.5, 0.5, 0.5} },
|
||||||
|
{ {-1, 1, 1}, { 1, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
|
||||||
|
{ { 1, -1, -1}, { 0, 0 }, {0.5, 0.5, 0.5} }, /* +X */
|
||||||
|
{ { 1, -1, 1}, { 0, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
{ { 1, 1, -1}, { 1, 0 }, {0.5, 0.5, 0.5} },
|
||||||
|
{ { 1, 1, 1}, { 1, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
|
||||||
|
{ {-1, -1, -1}, { 0, 0 }, {0.5, 0.5, 0.5} }, /* -Y */
|
||||||
|
{ {-1, -1, 1}, { 0, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
{ { 1, -1, -1}, { 1, 0 }, {0.5, 0.5, 0.5} },
|
||||||
|
{ { 1, -1, 1}, { 1, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
|
||||||
|
{ {-1, 1, -1}, { 0, 0 }, {0.5, 0.5, 0.5} }, /* +Y */
|
||||||
|
{ {-1, 1, 1}, { 0, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
{ { 1, 1, -1}, { 1, 0 }, {0.5, 0.5, 0.5} },
|
||||||
|
{ { 1, 1, 1}, { 1, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
|
||||||
|
{ {-1, -1, -1}, { 0, 0 }, {0.5, 0.5, 0.5} }, /* -Z */
|
||||||
|
{ {-1, 1, -1}, { 0, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
{ { 1, -1, -1}, { 1, 0 }, {0.5, 0.5, 0.5} },
|
||||||
|
{ { 1, 1, -1}, { 1, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
|
||||||
|
{ {-1, -1, 1}, { 0, 0 }, {0.5, 0.5, 0.5} }, /* +Z */
|
||||||
|
{ {-1, 1, 1}, { 0, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
{ { 1, -1, 1}, { 1, 0 }, {0.5, 0.5, 0.5} },
|
||||||
|
{ { 1, 1, 1}, { 1, 1 }, {1.0, 1.0, 1.0} },
|
||||||
|
};
|
||||||
|
|
||||||
|
#define QUAD(a,b,c,d) a, b, d, d, c, a
|
||||||
|
|
||||||
|
static const uint16 indexData[] = {
|
||||||
|
QUAD(0, 1, 2, 3), // -X
|
||||||
|
QUAD(4, 5, 6, 7), // +X
|
||||||
|
QUAD(8, 9, 10, 11), // -Y
|
||||||
|
QUAD(12, 13, 14, 15), // +Y
|
||||||
|
QUAD(16, 17, 18, 19), // -Z
|
||||||
|
QUAD(20, 21, 22, 23), // +Z
|
||||||
|
};
|
||||||
|
|
||||||
|
#undef QUAD
|
||||||
|
|
||||||
|
const uint32 numTriangles = sizeof indexData / sizeof indexData[0] / 3;
|
||||||
|
uint32 vertexSid, indexSid, textureSid;
|
||||||
|
Matrix perspectiveMat;
|
||||||
|
FPSCounterState gFPS;
|
||||||
|
VMMousePacket lastMouseState;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* render --
|
||||||
|
*
|
||||||
|
* Set up render state, and draw our cube scene from static index
|
||||||
|
* and vertex buffers.
|
||||||
|
*
|
||||||
|
* This render state only needs to be set each frame because
|
||||||
|
* SVGA3DText_Draw() changes it.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
render(void)
|
||||||
|
{
|
||||||
|
SVGA3dTextureState *ts;
|
||||||
|
SVGA3dRenderState *rs;
|
||||||
|
SVGA3dVertexDecl *decls;
|
||||||
|
SVGA3dPrimitiveRange *ranges;
|
||||||
|
static Matrix view;
|
||||||
|
|
||||||
|
Matrix_Copy(view, gIdentityMatrix);
|
||||||
|
Matrix_Scale(view, 0.5, 0.5, 0.5, 1.0);
|
||||||
|
|
||||||
|
if (lastMouseState.buttons & VMMOUSE_LEFT_BUTTON) {
|
||||||
|
Matrix_RotateX(view, lastMouseState.y * 0.0001);
|
||||||
|
Matrix_RotateY(view, lastMouseState.x * -0.0001);
|
||||||
|
} else {
|
||||||
|
Matrix_RotateX(view, 30.0 * M_PI / 180.0);
|
||||||
|
Matrix_RotateY(view, gFPS.frame * 0.01f);
|
||||||
|
}
|
||||||
|
|
||||||
|
Matrix_Translate(view, 0, 0, 2);
|
||||||
|
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, gIdentityMatrix);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat);
|
||||||
|
|
||||||
|
SVGA3D_BeginSetRenderState(CID, &rs, 4);
|
||||||
|
{
|
||||||
|
rs[0].state = SVGA3D_RS_BLENDENABLE;
|
||||||
|
rs[0].uintValue = FALSE;
|
||||||
|
|
||||||
|
rs[1].state = SVGA3D_RS_ZENABLE;
|
||||||
|
rs[1].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[2].state = SVGA3D_RS_ZWRITEENABLE;
|
||||||
|
rs[2].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[3].state = SVGA3D_RS_ZFUNC;
|
||||||
|
rs[3].uintValue = SVGA3D_CMP_LESS;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginSetTextureState(CID, &ts, 10);
|
||||||
|
{
|
||||||
|
ts[0].stage = 0;
|
||||||
|
ts[0].name = SVGA3D_TS_BIND_TEXTURE;
|
||||||
|
ts[0].value = textureSid;
|
||||||
|
|
||||||
|
ts[1].stage = 0;
|
||||||
|
ts[1].name = SVGA3D_TS_COLOROP;
|
||||||
|
ts[1].value = SVGA3D_TC_MODULATE;
|
||||||
|
|
||||||
|
ts[2].stage = 0;
|
||||||
|
ts[2].name = SVGA3D_TS_COLORARG1;
|
||||||
|
ts[2].value = SVGA3D_TA_TEXTURE;
|
||||||
|
|
||||||
|
ts[3].stage = 0;
|
||||||
|
ts[3].name = SVGA3D_TS_COLORARG2;
|
||||||
|
ts[3].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
|
||||||
|
ts[4].stage = 0;
|
||||||
|
ts[4].name = SVGA3D_TS_ALPHAOP;
|
||||||
|
ts[4].value = SVGA3D_TC_SELECTARG1;
|
||||||
|
|
||||||
|
ts[5].stage = 0;
|
||||||
|
ts[5].name = SVGA3D_TS_ALPHAARG1;
|
||||||
|
ts[5].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
|
||||||
|
ts[6].stage = 0;
|
||||||
|
ts[6].name = SVGA3D_TS_MINFILTER;
|
||||||
|
ts[6].value = SVGA3D_TEX_FILTER_LINEAR;
|
||||||
|
|
||||||
|
ts[7].stage = 0;
|
||||||
|
ts[7].name = SVGA3D_TS_MAGFILTER;
|
||||||
|
ts[7].value = SVGA3D_TEX_FILTER_LINEAR;
|
||||||
|
|
||||||
|
ts[8].stage = 0;
|
||||||
|
ts[8].name = SVGA3D_TS_ADDRESSU;
|
||||||
|
ts[8].value = SVGA3D_TEX_ADDRESS_WRAP;
|
||||||
|
|
||||||
|
ts[9].stage = 0;
|
||||||
|
ts[9].name = SVGA3D_TS_ADDRESSV;
|
||||||
|
ts[9].value = SVGA3D_TEX_ADDRESS_WRAP;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginDrawPrimitives(CID, &decls, 3, &ranges, 1);
|
||||||
|
{
|
||||||
|
decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION;
|
||||||
|
decls[0].array.surfaceId = vertexSid;
|
||||||
|
decls[0].array.stride = sizeof(MyVertex);
|
||||||
|
decls[0].array.offset = offsetof(MyVertex, position);
|
||||||
|
|
||||||
|
decls[1].identity.type = SVGA3D_DECLTYPE_FLOAT2;
|
||||||
|
decls[1].identity.usage = SVGA3D_DECLUSAGE_TEXCOORD;
|
||||||
|
decls[1].array.surfaceId = vertexSid;
|
||||||
|
decls[1].array.stride = sizeof(MyVertex);
|
||||||
|
decls[1].array.offset = offsetof(MyVertex, texcoord);
|
||||||
|
|
||||||
|
decls[2].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[2].identity.usage = SVGA3D_DECLUSAGE_COLOR;
|
||||||
|
decls[2].array.surfaceId = vertexSid;
|
||||||
|
decls[2].array.stride = sizeof(MyVertex);
|
||||||
|
decls[2].array.offset = offsetof(MyVertex, color);
|
||||||
|
|
||||||
|
ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST;
|
||||||
|
ranges[0].primitiveCount = numTriangles;
|
||||||
|
ranges[0].indexArray.surfaceId = indexSid;
|
||||||
|
ranges[0].indexArray.stride = sizeof(uint16);
|
||||||
|
ranges[0].indexWidth = sizeof(uint16);
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* defineCheckerboard --
|
||||||
|
*
|
||||||
|
* Create a new checkerboard texture of the specified size.
|
||||||
|
*/
|
||||||
|
|
||||||
|
uint32
|
||||||
|
defineCheckerboard(uint32 width, uint32 height)
|
||||||
|
{
|
||||||
|
uint32 *buffer;
|
||||||
|
int i, j;
|
||||||
|
SVGAGuestPtr gPtr;
|
||||||
|
uint32 size = width * height * sizeof *buffer;
|
||||||
|
|
||||||
|
uint32 sid = SVGA3DUtil_DefineSurface2D(width, height, SVGA3D_A8R8G8B8);
|
||||||
|
|
||||||
|
buffer = SVGA3DUtil_AllocDMABuffer(size, &gPtr);
|
||||||
|
|
||||||
|
for (j = 0; j < height; j++) {
|
||||||
|
for (i = 0; i < width; i++) {
|
||||||
|
*buffer = (i + j) & 1 ? 0xFFFFFFFF : 0x00000000;
|
||||||
|
buffer++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_SurfaceDMA2D(sid, &gPtr, SVGA3D_WRITE_HOST_VRAM, width, height);
|
||||||
|
|
||||||
|
return sid;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Our example's entry point, invoked directly by the bootloader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
uint32 texSize = 256;
|
||||||
|
uint32 checkerSid;
|
||||||
|
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 1024, 768);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
|
||||||
|
vertexSid = SVGA3DUtil_DefineStaticBuffer(vertexData, sizeof vertexData);
|
||||||
|
indexSid = SVGA3DUtil_DefineStaticBuffer(indexData, sizeof indexData);
|
||||||
|
|
||||||
|
textureSid = SVGA3DUtil_DefineSurface2D(texSize, texSize, SVGA3D_A8R8G8B8);
|
||||||
|
checkerSid = defineCheckerboard(texSize, texSize);
|
||||||
|
|
||||||
|
Matrix_Perspective(perspectiveMat, 45.0f,
|
||||||
|
gSVGA.width / (float)gSVGA.height, 0.1f, 100.0f);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
if (SVGA3DUtil_UpdateFPSCounter(&gFPS)) {
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format(
|
||||||
|
"VMware SVGA3D Example:\n"
|
||||||
|
"Spinning cube blitter test: \n"
|
||||||
|
" - SurfaceStretchBlt from back buffer to cube texture\n"
|
||||||
|
" - SurfaceCopy from cube texture to back buffer\n"
|
||||||
|
" - Checkerboard pattern in bottom left\n"
|
||||||
|
"\n"
|
||||||
|
"Verify performance and correctness with all blitter implementations.\n"
|
||||||
|
"\n"
|
||||||
|
"%s",
|
||||||
|
gFPS.text);
|
||||||
|
|
||||||
|
SVGA3DText_Update();
|
||||||
|
VMBackdoor_VGAScreenshot();
|
||||||
|
}
|
||||||
|
|
||||||
|
while (VMBackdoor_MouseGetPacket(&lastMouseState));
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH,
|
||||||
|
0x6666dd, 1.0f, 0);
|
||||||
|
render();
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
|
||||||
|
/* Surface copy from cube texture to the lower-right corner of the back buffer */
|
||||||
|
{
|
||||||
|
SVGA3dSurfaceImageId src = { textureSid };
|
||||||
|
SVGA3dCopyBox *boxes;
|
||||||
|
|
||||||
|
SVGA3D_BeginSurfaceCopy(&src, &gFullscreen.colorImage, &boxes, 1);
|
||||||
|
boxes[0].w = texSize;
|
||||||
|
boxes[0].h = texSize;
|
||||||
|
boxes[0].d = 1;
|
||||||
|
boxes[0].x = gFullscreen.screen.w - texSize;
|
||||||
|
boxes[0].y = gFullscreen.screen.h - texSize;
|
||||||
|
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* We're displaying the checkerboard texture in the lower-left
|
||||||
|
* corner of the back buffer. This tests for subpixel alignment
|
||||||
|
* errors within the blitter.
|
||||||
|
*
|
||||||
|
* Draw the top half with a regular blit, bottom half with a
|
||||||
|
* stretch blit. You should see a contiguous checkerboard.
|
||||||
|
*/
|
||||||
|
{
|
||||||
|
SVGA3dSurfaceImageId src = { checkerSid };
|
||||||
|
SVGA3dCopyBox *boxes;
|
||||||
|
SVGA3dBox boxSrc = { 0 };
|
||||||
|
SVGA3dBox boxDest = { 0 };
|
||||||
|
|
||||||
|
SVGA3D_BeginSurfaceCopy(&src, &gFullscreen.colorImage, &boxes, 1);
|
||||||
|
boxes[0].w = texSize;
|
||||||
|
boxes[0].h = texSize/2;
|
||||||
|
boxes[0].d = 1;
|
||||||
|
boxes[0].y = gFullscreen.screen.h - texSize;
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
boxSrc.w = texSize;
|
||||||
|
boxSrc.y = texSize/2;
|
||||||
|
boxSrc.h = texSize/2;
|
||||||
|
boxSrc.d = 1;
|
||||||
|
|
||||||
|
boxDest.w = texSize;
|
||||||
|
boxDest.y = gFullscreen.screen.h - texSize/2;
|
||||||
|
boxDest.h = texSize/2;
|
||||||
|
boxDest.d = 1;
|
||||||
|
|
||||||
|
SVGA3D_SurfaceStretchBlt(&src, &gFullscreen.colorImage, &boxSrc, &boxDest,
|
||||||
|
SVGA3D_STRETCH_BLT_LINEAR);
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
|
||||||
|
/* Stretch blit from back buffer to cube */
|
||||||
|
{
|
||||||
|
SVGA3dSurfaceImageId dest = { textureSid };
|
||||||
|
SVGA3dBox boxSrc = { 0 };
|
||||||
|
SVGA3dBox boxDest = { 0 };
|
||||||
|
|
||||||
|
boxSrc.w = gFullscreen.screen.w;
|
||||||
|
boxSrc.h = gFullscreen.screen.h;
|
||||||
|
boxSrc.d = 1;
|
||||||
|
|
||||||
|
boxDest.w = texSize;
|
||||||
|
boxDest.h = texSize;
|
||||||
|
boxDest.d = 1;
|
||||||
|
|
||||||
|
SVGA3D_SurfaceStretchBlt(&gFullscreen.colorImage, &dest, &boxSrc, &boxDest,
|
||||||
|
SVGA3D_STRETCH_BLT_LINEAR);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
6
examples/bunnies/Makefile
Normal file
6
examples/bunnies/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = bunnies.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c bunny.ib.z.data.o bunny.vb.z.data.o
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
BIN
examples/bunnies/bunny.ib
Normal file
BIN
examples/bunnies/bunny.ib
Normal file
Binary file not shown.
BIN
examples/bunnies/bunny.vb
Normal file
BIN
examples/bunnies/bunny.vb
Normal file
Binary file not shown.
202
examples/bunnies/main.c
Normal file
202
examples/bunnies/main.c
Normal file
|
|
@ -0,0 +1,202 @@
|
||||||
|
/*
|
||||||
|
* SVGA3D example: Bunnies.
|
||||||
|
*
|
||||||
|
* This example loads the famous Stanford Bunny model, and draws many
|
||||||
|
* copies of it. This demonstrates large models and fixed-function
|
||||||
|
* lighting.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
#include "matrix.h"
|
||||||
|
#include "math.h"
|
||||||
|
|
||||||
|
DECLARE_DATAFILE(ibFile, bunny_ib_z);
|
||||||
|
DECLARE_DATAFILE(vbFile, bunny_vb_z);
|
||||||
|
|
||||||
|
uint32 vertexSid, indexSid;
|
||||||
|
uint32 ibSize, vbSize;
|
||||||
|
Matrix perspectiveMat;
|
||||||
|
FPSCounterState gFPS;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* setupFrame --
|
||||||
|
*
|
||||||
|
* Set up render state that we load once per frame (because
|
||||||
|
* SVGA3DText clobbered it) and perform matrix calculations that we
|
||||||
|
* only need once per frame.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
setupFrame(void)
|
||||||
|
{
|
||||||
|
static Matrix world;
|
||||||
|
SVGA3dTextureState *ts;
|
||||||
|
SVGA3dRenderState *rs;
|
||||||
|
|
||||||
|
static const SVGA3dLightData light = {
|
||||||
|
.type = SVGA3D_LIGHTTYPE_POINT,
|
||||||
|
.inWorldSpace = TRUE,
|
||||||
|
.diffuse = { 10.0f, 10.0f, 10.0f, 1.0f },
|
||||||
|
.ambient = { 0.05f, 0.05f, 0.1f, 1.0f },
|
||||||
|
.position = { -5.0f, 5.0f, 0.0f, 1.0f },
|
||||||
|
.attenuation0 = 1.0f,
|
||||||
|
.attenuation1 = 0.0f,
|
||||||
|
.attenuation2 = 0.0f,
|
||||||
|
};
|
||||||
|
|
||||||
|
static const SVGA3dMaterial mat = {
|
||||||
|
.diffuse = { 1.0f, 0.9f, 0.9f, 1.0f },
|
||||||
|
.ambient = { 1.0f, 1.0f, 1.0f, 1.0f },
|
||||||
|
};
|
||||||
|
|
||||||
|
Matrix_Copy(world, gIdentityMatrix);
|
||||||
|
Matrix_Scale(world, 10, 10, 10, 1);
|
||||||
|
Matrix_RotateY(world, gFPS.frame * 0.001f);
|
||||||
|
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, world);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat);
|
||||||
|
|
||||||
|
SVGA3D_SetMaterial(CID, SVGA3D_FACE_FRONT_BACK, &mat);
|
||||||
|
SVGA3D_SetLightData(CID, 0, &light);
|
||||||
|
SVGA3D_SetLightEnabled(CID, 0, TRUE);
|
||||||
|
|
||||||
|
SVGA3D_BeginSetRenderState(CID, &rs, 8);
|
||||||
|
{
|
||||||
|
rs[0].state = SVGA3D_RS_BLENDENABLE;
|
||||||
|
rs[0].uintValue = FALSE;
|
||||||
|
|
||||||
|
rs[1].state = SVGA3D_RS_ZENABLE;
|
||||||
|
rs[1].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[2].state = SVGA3D_RS_ZWRITEENABLE;
|
||||||
|
rs[2].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[3].state = SVGA3D_RS_ZFUNC;
|
||||||
|
rs[3].uintValue = SVGA3D_CMP_LESS;
|
||||||
|
|
||||||
|
rs[4].state = SVGA3D_RS_LIGHTINGENABLE;
|
||||||
|
rs[4].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[5].state = SVGA3D_RS_VERTEXMATERIALENABLE;
|
||||||
|
rs[5].uintValue = FALSE;
|
||||||
|
|
||||||
|
rs[6].state = SVGA3D_RS_CULLMODE;
|
||||||
|
rs[6].uintValue = SVGA3D_FACE_FRONT;
|
||||||
|
|
||||||
|
rs[7].state = SVGA3D_RS_AMBIENT;
|
||||||
|
rs[7].uintValue = 0x00000000;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginSetTextureState(CID, &ts, 4);
|
||||||
|
{
|
||||||
|
ts[0].stage = 0;
|
||||||
|
ts[0].name = SVGA3D_TS_BIND_TEXTURE;
|
||||||
|
ts[0].value = SVGA3D_INVALID_ID;
|
||||||
|
|
||||||
|
ts[1].stage = 0;
|
||||||
|
ts[1].name = SVGA3D_TS_COLOROP;
|
||||||
|
ts[1].value = SVGA3D_TC_SELECTARG1;
|
||||||
|
|
||||||
|
ts[2].stage = 0;
|
||||||
|
ts[2].name = SVGA3D_TS_COLORARG1;
|
||||||
|
ts[2].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
|
||||||
|
ts[3].stage = 0;
|
||||||
|
ts[3].name = SVGA3D_TS_ALPHAARG1;
|
||||||
|
ts[3].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* drawMesh --
|
||||||
|
*
|
||||||
|
* Draw our bunny mesh at a particular position.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
drawMesh(float posX, float posY, float posZ)
|
||||||
|
{
|
||||||
|
SVGA3dVertexDecl *decls;
|
||||||
|
SVGA3dPrimitiveRange *ranges;
|
||||||
|
static Matrix view;
|
||||||
|
|
||||||
|
Matrix_Copy(view, gIdentityMatrix);
|
||||||
|
Matrix_Translate(view, posX, posY, posZ);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view);
|
||||||
|
|
||||||
|
SVGA3D_BeginDrawPrimitives(CID, &decls, 2, &ranges, 1);
|
||||||
|
{
|
||||||
|
decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION;
|
||||||
|
decls[0].array.surfaceId = vertexSid;
|
||||||
|
decls[0].array.stride = 6 * sizeof(float);
|
||||||
|
|
||||||
|
decls[1].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[1].identity.usage = SVGA3D_DECLUSAGE_NORMAL;
|
||||||
|
decls[1].array.surfaceId = vertexSid;
|
||||||
|
decls[1].array.stride = 6 * sizeof(float);
|
||||||
|
decls[1].array.offset = 3 * sizeof(float);
|
||||||
|
|
||||||
|
ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST;
|
||||||
|
ranges[0].primitiveCount = ibSize / sizeof(uint32) / 3;
|
||||||
|
ranges[0].indexArray.surfaceId = indexSid;
|
||||||
|
ranges[0].indexArray.stride = sizeof(uint32);
|
||||||
|
ranges[0].indexWidth = sizeof(uint32);
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Our example's entry point, invoked directly by the bootloader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 800, 600);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
|
||||||
|
vertexSid = SVGA3DUtil_LoadCompressedBuffer(vbFile, &vbSize);
|
||||||
|
indexSid = SVGA3DUtil_LoadCompressedBuffer(ibFile, &ibSize);
|
||||||
|
|
||||||
|
Matrix_Perspective(perspectiveMat, 45.0f,
|
||||||
|
gSVGA.width / (float)gSVGA.height, 0.1f, 100.0f);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
int i;
|
||||||
|
|
||||||
|
if (SVGA3DUtil_UpdateFPSCounter(&gFPS)) {
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("VMware SVGA3D Example:\n"
|
||||||
|
"Bunnies: Drawing 4 copies of the Stanford Bunny,"
|
||||||
|
" at 65K triangles each.\n\n%s",
|
||||||
|
gFPS.text);
|
||||||
|
SVGA3DText_Update();
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH,
|
||||||
|
0x113366, 1.0f, 0);
|
||||||
|
|
||||||
|
setupFrame();
|
||||||
|
|
||||||
|
for (i = 0; i < 4; i++) {
|
||||||
|
drawMesh(0.8 - i * 1.0f, -1, 3 + i * 1.0f);
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
6
examples/cube/Makefile
Normal file
6
examples/cube/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = cube.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
191
examples/cube/main.c
Normal file
191
examples/cube/main.c
Normal file
|
|
@ -0,0 +1,191 @@
|
||||||
|
/*
|
||||||
|
* SVGA3D example: Spinning cube, with static vertex/index buffers.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
#include "matrix.h"
|
||||||
|
#include "math.h"
|
||||||
|
#include "keyboard.h"
|
||||||
|
#include "apm.h"
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
float position[3];
|
||||||
|
uint32 color;
|
||||||
|
} MyVertex;
|
||||||
|
|
||||||
|
static const MyVertex vertexData[] = {
|
||||||
|
{ {-1, -1, -1}, 0xFFFFFF },
|
||||||
|
{ {-1, -1, 1}, 0xFFFF00 },
|
||||||
|
{ {-1, 1, -1}, 0xFF00FF },
|
||||||
|
{ {-1, 1, 1}, 0xFF0000 },
|
||||||
|
{ { 1, -1, -1}, 0x00FFFF },
|
||||||
|
{ { 1, -1, 1}, 0x00FF00 },
|
||||||
|
{ { 1, 1, -1}, 0x0000FF },
|
||||||
|
{ { 1, 1, 1}, 0x000000 },
|
||||||
|
};
|
||||||
|
|
||||||
|
#define QUAD(a,b,c,d) a, b, d, d, c, a
|
||||||
|
|
||||||
|
static const uint16 indexData[] = {
|
||||||
|
QUAD(0,1,2,3), // -X
|
||||||
|
QUAD(4,5,6,7), // +X
|
||||||
|
QUAD(0,1,4,5), // -Y
|
||||||
|
QUAD(2,3,6,7), // +Y
|
||||||
|
QUAD(0,2,4,6), // -Z
|
||||||
|
QUAD(1,3,5,7), // +Z
|
||||||
|
};
|
||||||
|
|
||||||
|
#undef QUAD
|
||||||
|
|
||||||
|
const uint32 numTriangles = sizeof indexData / sizeof indexData[0] / 3;
|
||||||
|
uint32 vertexSid, indexSid;
|
||||||
|
Matrix perspectiveMat;
|
||||||
|
FPSCounterState gFPS;
|
||||||
|
VMMousePacket lastMouseState;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* render --
|
||||||
|
*
|
||||||
|
* Set up render state, and draw our cube scene from static index
|
||||||
|
* and vertex buffers.
|
||||||
|
*
|
||||||
|
* This render state only needs to be set each frame because
|
||||||
|
* SVGA3DText_Draw() changes it.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
render(void)
|
||||||
|
{
|
||||||
|
SVGA3dTextureState *ts;
|
||||||
|
SVGA3dRenderState *rs;
|
||||||
|
SVGA3dVertexDecl *decls;
|
||||||
|
SVGA3dPrimitiveRange *ranges;
|
||||||
|
static Matrix view;
|
||||||
|
|
||||||
|
Matrix_Copy(view, gIdentityMatrix);
|
||||||
|
Matrix_Scale(view, 0.5, 0.5, 0.5, 1.0);
|
||||||
|
|
||||||
|
if (lastMouseState.buttons & VMMOUSE_LEFT_BUTTON) {
|
||||||
|
Matrix_RotateX(view, lastMouseState.y * 0.0001);
|
||||||
|
Matrix_RotateY(view, lastMouseState.x * -0.0001);
|
||||||
|
} else {
|
||||||
|
Matrix_RotateX(view, 30.0 * M_PI / 180.0);
|
||||||
|
Matrix_RotateY(view, gFPS.frame * 0.01f);
|
||||||
|
}
|
||||||
|
|
||||||
|
Matrix_Translate(view, 0, 0, 3);
|
||||||
|
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, gIdentityMatrix);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat);
|
||||||
|
|
||||||
|
SVGA3D_BeginSetRenderState(CID, &rs, 4);
|
||||||
|
{
|
||||||
|
rs[0].state = SVGA3D_RS_BLENDENABLE;
|
||||||
|
rs[0].uintValue = FALSE;
|
||||||
|
|
||||||
|
rs[1].state = SVGA3D_RS_ZENABLE;
|
||||||
|
rs[1].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[2].state = SVGA3D_RS_ZWRITEENABLE;
|
||||||
|
rs[2].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[3].state = SVGA3D_RS_ZFUNC;
|
||||||
|
rs[3].uintValue = SVGA3D_CMP_LESS;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginSetTextureState(CID, &ts, 4);
|
||||||
|
{
|
||||||
|
ts[0].stage = 0;
|
||||||
|
ts[0].name = SVGA3D_TS_BIND_TEXTURE;
|
||||||
|
ts[0].value = SVGA3D_INVALID_ID;
|
||||||
|
|
||||||
|
ts[1].stage = 0;
|
||||||
|
ts[1].name = SVGA3D_TS_COLOROP;
|
||||||
|
ts[1].value = SVGA3D_TC_SELECTARG1;
|
||||||
|
|
||||||
|
ts[2].stage = 0;
|
||||||
|
ts[2].name = SVGA3D_TS_COLORARG1;
|
||||||
|
ts[2].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
|
||||||
|
ts[3].stage = 0;
|
||||||
|
ts[3].name = SVGA3D_TS_ALPHAARG1;
|
||||||
|
ts[3].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginDrawPrimitives(CID, &decls, 2, &ranges, 1);
|
||||||
|
{
|
||||||
|
decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION;
|
||||||
|
decls[0].array.surfaceId = vertexSid;
|
||||||
|
decls[0].array.stride = sizeof(MyVertex);
|
||||||
|
decls[0].array.offset = offsetof(MyVertex, position);
|
||||||
|
|
||||||
|
decls[1].identity.type = SVGA3D_DECLTYPE_D3DCOLOR;
|
||||||
|
decls[1].identity.usage = SVGA3D_DECLUSAGE_COLOR;
|
||||||
|
decls[1].array.surfaceId = vertexSid;
|
||||||
|
decls[1].array.stride = sizeof(MyVertex);
|
||||||
|
decls[1].array.offset = offsetof(MyVertex, color);
|
||||||
|
|
||||||
|
ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST;
|
||||||
|
ranges[0].primitiveCount = numTriangles;
|
||||||
|
ranges[0].indexArray.surfaceId = indexSid;
|
||||||
|
ranges[0].indexArray.stride = sizeof(uint16);
|
||||||
|
ranges[0].indexWidth = sizeof(uint16);
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Our example's entry point, invoked directly by the bootloader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 800, 600);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
Keyboard_Init();
|
||||||
|
APM_Init();
|
||||||
|
|
||||||
|
vertexSid = SVGA3DUtil_DefineStaticBuffer(vertexData, sizeof vertexData);
|
||||||
|
indexSid = SVGA3DUtil_DefineStaticBuffer(indexData, sizeof indexData);
|
||||||
|
|
||||||
|
Matrix_Perspective(perspectiveMat, 45.0f,
|
||||||
|
gSVGA.width / (float)gSVGA.height, 0.1f, 100.0f);
|
||||||
|
|
||||||
|
while (!Keyboard_IsKeyPressed(KEY_ESCAPE)) {
|
||||||
|
|
||||||
|
if (SVGA3DUtil_UpdateFPSCounter(&gFPS)) {
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("VMware SVGA3D Example:\n"
|
||||||
|
"Spinning cube with static vertex and index buffer.\n"
|
||||||
|
"Drag with left mouse button to rotate.\n"
|
||||||
|
"Press ESC to exit.\n"
|
||||||
|
"\n%s",
|
||||||
|
gFPS.text);
|
||||||
|
SVGA3DText_Update();
|
||||||
|
VMBackdoor_VGAScreenshot();
|
||||||
|
}
|
||||||
|
|
||||||
|
while (VMBackdoor_MouseGetPacket(&lastMouseState));
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH,
|
||||||
|
0x113366, 1.0f, 0);
|
||||||
|
render();
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
}
|
||||||
|
|
||||||
|
APM_SetPowerState(POWER_OFF);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
16
examples/cubemark/Makefile
Normal file
16
examples/cubemark/Makefile
Normal file
|
|
@ -0,0 +1,16 @@
|
||||||
|
TARGET = cubemark.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
|
|
||||||
|
.PHONY: shaders
|
||||||
|
|
||||||
|
shaders: cube_vs.h cube_ps.h
|
||||||
|
|
||||||
|
cube_vs.h: cube.fx
|
||||||
|
wine fxc.exe /T vs_2_0 /E MyVertexShader /Fh cube_vs.h cube.fx
|
||||||
|
|
||||||
|
cube_ps.h: cube.fx
|
||||||
|
wine fxc.exe /T ps_2_0 /E MyPixelShader /Fh cube_ps.h cube.fx
|
||||||
36
examples/cubemark/cube.fx
Normal file
36
examples/cubemark/cube.fx
Normal file
|
|
@ -0,0 +1,36 @@
|
||||||
|
float4x4 matView, matProj;
|
||||||
|
|
||||||
|
struct VS_Input
|
||||||
|
{
|
||||||
|
float4 Pos : POSITION;
|
||||||
|
float4 Color : COLOR0;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct VS_Output
|
||||||
|
{
|
||||||
|
float4 Pos : POSITION;
|
||||||
|
float4 Color : COLOR0;
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
VS_Output
|
||||||
|
MyVertexShader(VS_Input Input)
|
||||||
|
{
|
||||||
|
VS_Output Output;
|
||||||
|
|
||||||
|
Output.Pos = mul(mul(Input.Pos, matView), matProj);
|
||||||
|
Output.Color = Input.Color;
|
||||||
|
|
||||||
|
return Output;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct PS_Input
|
||||||
|
{
|
||||||
|
float4 Color : COLOR0;
|
||||||
|
};
|
||||||
|
|
||||||
|
float4
|
||||||
|
MyPixelShader(PS_Input Input) : COLOR
|
||||||
|
{
|
||||||
|
return Input.Color;
|
||||||
|
}
|
||||||
21
examples/cubemark/cube_ps.h
Normal file
21
examples/cubemark/cube_ps.h
Normal file
|
|
@ -0,0 +1,21 @@
|
||||||
|
#if 0
|
||||||
|
//
|
||||||
|
// Generated by Microsoft (R) D3DX9 Shader Compiler
|
||||||
|
//
|
||||||
|
// fxc /T ps_2_0 /E MyPixelShader /Fh cube_ps.h cube.fx
|
||||||
|
//
|
||||||
|
ps_2_0
|
||||||
|
dcl v0
|
||||||
|
mov oC0, v0
|
||||||
|
|
||||||
|
// approximately 1 instruction slot used
|
||||||
|
#endif
|
||||||
|
|
||||||
|
const DWORD g_ps20_MyPixelShader[] =
|
||||||
|
{
|
||||||
|
0xffff0200, 0x0013fffe, 0x42415443, 0x0000001c, 0x00000023, 0xffff0200,
|
||||||
|
0x00000000, 0x00000000, 0x20000100, 0x0000001c, 0x325f7370, 0x4d00305f,
|
||||||
|
0x6f726369, 0x74666f73, 0x29522820, 0x44334420, 0x53203958, 0x65646168,
|
||||||
|
0x6f432072, 0x6c69706d, 0x00207265, 0x0200001f, 0x80000000, 0x900f0000,
|
||||||
|
0x02000001, 0x800f0800, 0x90e40000, 0x0000ffff
|
||||||
|
};
|
||||||
54
examples/cubemark/cube_vs.h
Normal file
54
examples/cubemark/cube_vs.h
Normal file
|
|
@ -0,0 +1,54 @@
|
||||||
|
#if 0
|
||||||
|
//
|
||||||
|
// Generated by Microsoft (R) D3DX9 Shader Compiler
|
||||||
|
//
|
||||||
|
// fxc /T vs_2_0 /E MyVertexShader /Fh cube_vs.h cube.fx
|
||||||
|
//
|
||||||
|
//
|
||||||
|
// Parameters:
|
||||||
|
//
|
||||||
|
// float4x4 matProj;
|
||||||
|
// float4x4 matView;
|
||||||
|
//
|
||||||
|
//
|
||||||
|
// Registers:
|
||||||
|
//
|
||||||
|
// Name Reg Size
|
||||||
|
// ------------ ----- ----
|
||||||
|
// matView c0 4
|
||||||
|
// matProj c4 4
|
||||||
|
//
|
||||||
|
|
||||||
|
vs_2_0
|
||||||
|
dcl_position v0
|
||||||
|
dcl_color v1
|
||||||
|
dp4 r0.x, v0, c0
|
||||||
|
dp4 r0.y, v0, c1
|
||||||
|
dp4 r0.z, v0, c2
|
||||||
|
dp4 r0.w, v0, c3
|
||||||
|
dp4 oPos.x, r0, c4
|
||||||
|
dp4 oPos.y, r0, c5
|
||||||
|
dp4 oPos.z, r0, c6
|
||||||
|
dp4 oPos.w, r0, c7
|
||||||
|
mov oD0, v1
|
||||||
|
|
||||||
|
// approximately 9 instruction slots used
|
||||||
|
#endif
|
||||||
|
|
||||||
|
const DWORD g_vs20_MyVertexShader[] =
|
||||||
|
{
|
||||||
|
0xfffe0200, 0x0025fffe, 0x42415443, 0x0000001c, 0x0000006b, 0xfffe0200,
|
||||||
|
0x00000002, 0x0000001c, 0x20000100, 0x00000064, 0x00000044, 0x00040002,
|
||||||
|
0x00000004, 0x0000004c, 0x00000000, 0x0000005c, 0x00000002, 0x00000004,
|
||||||
|
0x0000004c, 0x00000000, 0x5074616d, 0x006a6f72, 0x00030003, 0x00040004,
|
||||||
|
0x00000001, 0x00000000, 0x5674616d, 0x00776569, 0x325f7376, 0x4d00305f,
|
||||||
|
0x6f726369, 0x74666f73, 0x29522820, 0x44334420, 0x53203958, 0x65646168,
|
||||||
|
0x6f432072, 0x6c69706d, 0x00207265, 0x0200001f, 0x80000000, 0x900f0000,
|
||||||
|
0x0200001f, 0x8000000a, 0x900f0001, 0x03000009, 0x80010000, 0x90e40000,
|
||||||
|
0xa0e40000, 0x03000009, 0x80020000, 0x90e40000, 0xa0e40001, 0x03000009,
|
||||||
|
0x80040000, 0x90e40000, 0xa0e40002, 0x03000009, 0x80080000, 0x90e40000,
|
||||||
|
0xa0e40003, 0x03000009, 0xc0010000, 0x80e40000, 0xa0e40004, 0x03000009,
|
||||||
|
0xc0020000, 0x80e40000, 0xa0e40005, 0x03000009, 0xc0040000, 0x80e40000,
|
||||||
|
0xa0e40006, 0x03000009, 0xc0080000, 0x80e40000, 0xa0e40007, 0x02000001,
|
||||||
|
0xd00f0000, 0x90e40001, 0x0000ffff
|
||||||
|
};
|
||||||
235
examples/cubemark/main.c
Normal file
235
examples/cubemark/main.c
Normal file
|
|
@ -0,0 +1,235 @@
|
||||||
|
/*
|
||||||
|
* Cubemark, a microbenchmark which renders a very large number of
|
||||||
|
* very simple objects. This stresses the throughput of the SVGA3D
|
||||||
|
* command pipeline and API layers.
|
||||||
|
*
|
||||||
|
* Half of the cubes are rendered using fixed-function, and half of
|
||||||
|
* them are rendered using shaders. This helps hilight any performance
|
||||||
|
* differences between per-draw setup for FFP vs. for shaders.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
#include "matrix.h"
|
||||||
|
#include "math.h"
|
||||||
|
|
||||||
|
typedef uint32 DWORD;
|
||||||
|
#include "cube_vs.h"
|
||||||
|
#include "cube_ps.h"
|
||||||
|
|
||||||
|
#define MY_VSHADER_ID 0
|
||||||
|
#define MY_PSHADER_ID 0
|
||||||
|
|
||||||
|
#define CONST_MAT_VIEW 0
|
||||||
|
#define CONST_MAT_PROJ 4
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
float position[3];
|
||||||
|
uint32 color;
|
||||||
|
} MyVertex;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Two colors for the cubes, so we can see them rotate more easily.
|
||||||
|
*/
|
||||||
|
#define COLOR1 0x8080FF
|
||||||
|
#define COLOR2 0x000080
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This defines the grid spacing, as well as the total number of cubes we draw.
|
||||||
|
*/
|
||||||
|
#define GRID_X_MIN (-35)
|
||||||
|
#define GRID_X_MAX 35
|
||||||
|
#define GRID_Y_MIN (-20)
|
||||||
|
#define GRID_Y_MAX 20
|
||||||
|
#define GRID_STEP 2
|
||||||
|
|
||||||
|
static const MyVertex vertexData[] = {
|
||||||
|
{ {-1, -1, -1}, COLOR1 },
|
||||||
|
{ {-1, -1, 1}, COLOR1 },
|
||||||
|
{ {-1, 1, -1}, COLOR1 },
|
||||||
|
{ {-1, 1, 1}, COLOR1 },
|
||||||
|
{ { 1, -1, -1}, COLOR2 },
|
||||||
|
{ { 1, -1, 1}, COLOR2 },
|
||||||
|
{ { 1, 1, -1}, COLOR2 },
|
||||||
|
{ { 1, 1, 1}, COLOR2 },
|
||||||
|
};
|
||||||
|
|
||||||
|
#define QUAD(a,b,c,d) a, b, d, d, c, a
|
||||||
|
|
||||||
|
static const uint16 indexData[] = {
|
||||||
|
QUAD(0,1,2,3), // -X
|
||||||
|
QUAD(4,5,6,7), // +X
|
||||||
|
QUAD(0,1,4,5), // -Y
|
||||||
|
QUAD(2,3,6,7), // +Y
|
||||||
|
QUAD(0,2,4,6), // -Z
|
||||||
|
QUAD(1,3,5,7), // +Z
|
||||||
|
};
|
||||||
|
|
||||||
|
#undef QUAD
|
||||||
|
|
||||||
|
const uint32 numTriangles = sizeof indexData / sizeof indexData[0] / 3;
|
||||||
|
uint32 vertexSid, indexSid;
|
||||||
|
Matrix perspectiveMat;
|
||||||
|
FPSCounterState gFPS;
|
||||||
|
VMMousePacket lastMouseState;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* render --
|
||||||
|
*
|
||||||
|
* Set up common render state and matrices, then enter a loop
|
||||||
|
* drawing many cubes with individual draw commands.
|
||||||
|
*
|
||||||
|
* This render state only needs to be set each frame because
|
||||||
|
* SVGA3DText_Draw() changes it.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
render(void)
|
||||||
|
{
|
||||||
|
SVGA3dTextureState *ts;
|
||||||
|
SVGA3dRenderState *rs;
|
||||||
|
SVGA3dVertexDecl *decls;
|
||||||
|
SVGA3dPrimitiveRange *ranges;
|
||||||
|
static Matrix view, instance;
|
||||||
|
float x, y;
|
||||||
|
Bool useShaders = FALSE;
|
||||||
|
|
||||||
|
Matrix_Copy(view, gIdentityMatrix);
|
||||||
|
Matrix_Scale(view, 0.5, 0.5, 0.5, 1.0);
|
||||||
|
Matrix_RotateX(view, 30.0 * M_PI / 180.0);
|
||||||
|
Matrix_RotateY(view, gFPS.frame * 0.1f);
|
||||||
|
Matrix_Translate(view, 0, 0, 75);
|
||||||
|
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, gIdentityMatrix);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat);
|
||||||
|
|
||||||
|
SVGA3DUtil_SetShaderConstMatrix(CID, CONST_MAT_PROJ,
|
||||||
|
SVGA3D_SHADERTYPE_VS, perspectiveMat);
|
||||||
|
|
||||||
|
SVGA3D_BeginSetRenderState(CID, &rs, 4);
|
||||||
|
{
|
||||||
|
rs[0].state = SVGA3D_RS_BLENDENABLE;
|
||||||
|
rs[0].uintValue = FALSE;
|
||||||
|
|
||||||
|
rs[1].state = SVGA3D_RS_ZENABLE;
|
||||||
|
rs[1].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[2].state = SVGA3D_RS_ZWRITEENABLE;
|
||||||
|
rs[2].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[3].state = SVGA3D_RS_ZFUNC;
|
||||||
|
rs[3].uintValue = SVGA3D_CMP_LESS;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginSetTextureState(CID, &ts, 4);
|
||||||
|
{
|
||||||
|
ts[0].stage = 0;
|
||||||
|
ts[0].name = SVGA3D_TS_BIND_TEXTURE;
|
||||||
|
ts[0].value = SVGA3D_INVALID_ID;
|
||||||
|
|
||||||
|
ts[1].stage = 0;
|
||||||
|
ts[1].name = SVGA3D_TS_COLOROP;
|
||||||
|
ts[1].value = SVGA3D_TC_SELECTARG1;
|
||||||
|
|
||||||
|
ts[2].stage = 0;
|
||||||
|
ts[2].name = SVGA3D_TS_COLORARG1;
|
||||||
|
ts[2].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
|
||||||
|
ts[3].stage = 0;
|
||||||
|
ts[3].name = SVGA3D_TS_ALPHAARG1;
|
||||||
|
ts[3].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
for (x = GRID_X_MIN; x <= GRID_X_MAX; x += GRID_STEP) {
|
||||||
|
for (y = GRID_Y_MIN; y <= GRID_Y_MAX; y += GRID_STEP) {
|
||||||
|
|
||||||
|
Matrix_Copy(instance, view);
|
||||||
|
Matrix_Translate(instance, x, y, 0);
|
||||||
|
|
||||||
|
if (useShaders) {
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, MY_VSHADER_ID);
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, MY_PSHADER_ID);
|
||||||
|
SVGA3DUtil_SetShaderConstMatrix(CID, CONST_MAT_VIEW,
|
||||||
|
SVGA3D_SHADERTYPE_VS, instance);
|
||||||
|
} else {
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, SVGA3D_INVALID_ID);
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, SVGA3D_INVALID_ID);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, instance);
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3D_BeginDrawPrimitives(CID, &decls, 2, &ranges, 1);
|
||||||
|
{
|
||||||
|
decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION;
|
||||||
|
decls[0].array.surfaceId = vertexSid;
|
||||||
|
decls[0].array.stride = sizeof(MyVertex);
|
||||||
|
decls[0].array.offset = offsetof(MyVertex, position);
|
||||||
|
|
||||||
|
decls[1].identity.type = SVGA3D_DECLTYPE_D3DCOLOR;
|
||||||
|
decls[1].identity.usage = SVGA3D_DECLUSAGE_COLOR;
|
||||||
|
decls[1].array.surfaceId = vertexSid;
|
||||||
|
decls[1].array.stride = sizeof(MyVertex);
|
||||||
|
decls[1].array.offset = offsetof(MyVertex, color);
|
||||||
|
|
||||||
|
ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST;
|
||||||
|
ranges[0].primitiveCount = numTriangles;
|
||||||
|
ranges[0].indexArray.surfaceId = indexSid;
|
||||||
|
ranges[0].indexArray.stride = sizeof(uint16);
|
||||||
|
ranges[0].indexWidth = sizeof(uint16);
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
useShaders = !useShaders;
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, SVGA3D_INVALID_ID);
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, SVGA3D_INVALID_ID);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Our example's entry point, invoked directly by the bootloader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 800, 600);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
|
||||||
|
vertexSid = SVGA3DUtil_DefineStaticBuffer(vertexData, sizeof vertexData);
|
||||||
|
indexSid = SVGA3DUtil_DefineStaticBuffer(indexData, sizeof indexData);
|
||||||
|
|
||||||
|
SVGA3D_DefineShader(CID, MY_VSHADER_ID, SVGA3D_SHADERTYPE_VS,
|
||||||
|
g_vs20_MyVertexShader, sizeof g_vs20_MyVertexShader);
|
||||||
|
SVGA3D_DefineShader(CID, MY_PSHADER_ID, SVGA3D_SHADERTYPE_PS,
|
||||||
|
g_ps20_MyPixelShader, sizeof g_ps20_MyPixelShader);
|
||||||
|
|
||||||
|
Matrix_Perspective(perspectiveMat, 45.0f,
|
||||||
|
gSVGA.width / (float)gSVGA.height, 10.0f, 100.0f);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
if (SVGA3DUtil_UpdateFPSCounter(&gFPS)) {
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("Cubemark microbenchmark\n\n%s", gFPS.text);
|
||||||
|
SVGA3DText_Update();
|
||||||
|
VMBackdoor_VGAScreenshot();
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH,
|
||||||
|
0x000000, 1.0f, 0);
|
||||||
|
render();
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
6
examples/dynamic-vertex-stress/Makefile
Normal file
6
examples/dynamic-vertex-stress/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = dynamic-vertex-stress.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
353
examples/dynamic-vertex-stress/main.c
Normal file
353
examples/dynamic-vertex-stress/main.c
Normal file
|
|
@ -0,0 +1,353 @@
|
||||||
|
/*
|
||||||
|
* SVGA3D example: Dynamic vertex buffer stress-test.
|
||||||
|
*
|
||||||
|
* This example is a performance stress-test for dynamic vertex
|
||||||
|
* buffers, and specifically for performing DMA on buffers which may
|
||||||
|
* still be in use by the GPU.
|
||||||
|
*
|
||||||
|
* Like the original dynamic-vertex test, we compute an animated
|
||||||
|
* function on the guest CPU and upload it via a vertex buffer before
|
||||||
|
* each draw. To simulate the stresses involved in dealing with apps
|
||||||
|
* that render in immediate-mode, however, this test breaks the vertex
|
||||||
|
* buffer up into very small pieces which are all DMA'ed and rendered
|
||||||
|
* individually.
|
||||||
|
*
|
||||||
|
* If the SVGA3D implementation has any bottlenecks related to reusing
|
||||||
|
* vertex buffers that are still in use by the physical GPU, this test
|
||||||
|
* will expose them.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
#include "matrix.h"
|
||||||
|
#include "math.h"
|
||||||
|
|
||||||
|
#define MESH_WIDTH 256 /* 64 kilovertices, 1.5MB */
|
||||||
|
#define MESH_HEIGHT 256
|
||||||
|
|
||||||
|
#define MESH_NUM_VERTICES (MESH_WIDTH * MESH_HEIGHT)
|
||||||
|
#define MESH_NUM_QUADS ((MESH_WIDTH-1) * (MESH_HEIGHT-1))
|
||||||
|
#define MESH_NUM_TRIANGLES (MESH_NUM_QUADS * 2)
|
||||||
|
#define MESH_NUM_INDICES (MESH_NUM_TRIANGLES * 3)
|
||||||
|
#define MESH_NUM_BYTES (MESH_NUM_VERTICES * sizeof(MyVertex))
|
||||||
|
#define TRIANGLES_PER_ROW ((MESH_WIDTH-1) * 2)
|
||||||
|
#define INDICES_PER_ROW (TRIANGLES_PER_ROW * 3)
|
||||||
|
|
||||||
|
#define MESH_ELEMENT(x, y) (MESH_WIDTH * (y) + (x))
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
float position[3];
|
||||||
|
float color[3];
|
||||||
|
} MyVertex;
|
||||||
|
|
||||||
|
typedef uint16 IndexType;
|
||||||
|
DMAPool vertexDMA;
|
||||||
|
uint32 vertexSid, indexSid;
|
||||||
|
Matrix perspectiveMat;
|
||||||
|
FPSCounterState gFPS;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* setupFrame --
|
||||||
|
*
|
||||||
|
* Set up render state that we load once per frame (because
|
||||||
|
* SVGA3DText clobbered it) and perform matrix calculations that we
|
||||||
|
* only need once per frame.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
setupFrame(void)
|
||||||
|
{
|
||||||
|
static Matrix world;
|
||||||
|
static Matrix view;
|
||||||
|
SVGA3dTextureState *ts;
|
||||||
|
SVGA3dRenderState *rs;
|
||||||
|
|
||||||
|
Matrix_Copy(view, gIdentityMatrix);
|
||||||
|
Matrix_Translate(view, 0, 0, 3);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view);
|
||||||
|
|
||||||
|
Matrix_Copy(world, gIdentityMatrix);
|
||||||
|
Matrix_RotateX(world, -60.0 * PI_OVER_180);
|
||||||
|
Matrix_RotateY(world, gFPS.frame * 0.01f);
|
||||||
|
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, world);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat);
|
||||||
|
|
||||||
|
SVGA3D_BeginSetRenderState(CID, &rs, 4);
|
||||||
|
{
|
||||||
|
rs[0].state = SVGA3D_RS_BLENDENABLE;
|
||||||
|
rs[0].uintValue = FALSE;
|
||||||
|
|
||||||
|
rs[1].state = SVGA3D_RS_ZENABLE;
|
||||||
|
rs[1].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[2].state = SVGA3D_RS_ZWRITEENABLE;
|
||||||
|
rs[2].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[3].state = SVGA3D_RS_ZFUNC;
|
||||||
|
rs[3].uintValue = SVGA3D_CMP_LESS;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginSetTextureState(CID, &ts, 4);
|
||||||
|
{
|
||||||
|
ts[0].stage = 0;
|
||||||
|
ts[0].name = SVGA3D_TS_BIND_TEXTURE;
|
||||||
|
ts[0].value = SVGA3D_INVALID_ID;
|
||||||
|
|
||||||
|
ts[1].stage = 0;
|
||||||
|
ts[1].name = SVGA3D_TS_COLOROP;
|
||||||
|
ts[1].value = SVGA3D_TC_SELECTARG1;
|
||||||
|
|
||||||
|
ts[2].stage = 0;
|
||||||
|
ts[2].name = SVGA3D_TS_COLORARG1;
|
||||||
|
ts[2].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
|
||||||
|
ts[3].stage = 0;
|
||||||
|
ts[3].name = SVGA3D_TS_ALPHAARG1;
|
||||||
|
ts[3].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* updateVertices --
|
||||||
|
*
|
||||||
|
* Calculate new vertices, writing them directly into an available
|
||||||
|
* DMA buffer. Returns a DMAPoolBuffer which contains the vertex
|
||||||
|
* data for an entire frame.
|
||||||
|
*/
|
||||||
|
|
||||||
|
DMAPoolBuffer *
|
||||||
|
updateVertices(float red, float green, float blue, float phase, float offset)
|
||||||
|
{
|
||||||
|
DMAPoolBuffer *dma;
|
||||||
|
MyVertex *vert;
|
||||||
|
int x, y;
|
||||||
|
float t = gFPS.frame * 0.1f + phase;
|
||||||
|
|
||||||
|
dma = SVGA3DUtil_DMAPoolGetBuffer(&vertexDMA);
|
||||||
|
vert = (MyVertex*) dma->buffer;
|
||||||
|
|
||||||
|
for (y = 0; y < MESH_HEIGHT; y++) {
|
||||||
|
for (x = 0; x < MESH_WIDTH; x++) {
|
||||||
|
|
||||||
|
float fx = x * (2.0 / MESH_WIDTH) - 1.0;
|
||||||
|
float fy = y * (2.0 / MESH_HEIGHT) - 1.0;
|
||||||
|
float fxo = fx + offset;
|
||||||
|
float dist = fxo * fxo + fy * fy;
|
||||||
|
float z = sinf(dist * 8.0 + t) / (1 + dist * 10.0);
|
||||||
|
|
||||||
|
vert->position[0] = fx;
|
||||||
|
vert->position[1] = fy;
|
||||||
|
vert->position[2] = z;
|
||||||
|
|
||||||
|
vert->color[0] = red - z;
|
||||||
|
vert->color[1] = green - z;
|
||||||
|
vert->color[2] = blue - z;
|
||||||
|
|
||||||
|
vert++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return dma;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* createIndexBuffer --
|
||||||
|
*
|
||||||
|
* Create a static index buffer that renders our vertices as a 2D
|
||||||
|
* mesh. For simplicity, we use a triangle list rather than a
|
||||||
|
* triangle strip.
|
||||||
|
*/
|
||||||
|
uint32
|
||||||
|
createIndexBuffer(void)
|
||||||
|
{
|
||||||
|
IndexType *indexBuffer;
|
||||||
|
const uint32 bufferSize = MESH_NUM_INDICES * sizeof *indexBuffer;
|
||||||
|
SVGAGuestPtr gPtr;
|
||||||
|
uint32 sid;
|
||||||
|
int x, y;
|
||||||
|
|
||||||
|
sid = SVGA3DUtil_DefineSurface2D(bufferSize, 1, SVGA3D_BUFFER);
|
||||||
|
indexBuffer = SVGA3DUtil_AllocDMABuffer(bufferSize, &gPtr);
|
||||||
|
|
||||||
|
for (y = 0; y < (MESH_HEIGHT - 1); y++) {
|
||||||
|
for (x = 0; x < (MESH_WIDTH - 1); x++) {
|
||||||
|
|
||||||
|
indexBuffer[0] = MESH_ELEMENT(x, y );
|
||||||
|
indexBuffer[1] = MESH_ELEMENT(x+1, y );
|
||||||
|
indexBuffer[2] = MESH_ELEMENT(x+1, y+1);
|
||||||
|
|
||||||
|
indexBuffer[3] = MESH_ELEMENT(x+1, y+1);
|
||||||
|
indexBuffer[4] = MESH_ELEMENT(x, y+1);
|
||||||
|
indexBuffer[5] = MESH_ELEMENT(x, y );
|
||||||
|
|
||||||
|
indexBuffer += 6;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_SurfaceDMA2D(sid, &gPtr, SVGA3D_WRITE_HOST_VRAM, bufferSize, 1);
|
||||||
|
|
||||||
|
return sid;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* trashBuffer --
|
||||||
|
*
|
||||||
|
* Upload zeroes to the vertex buffer, to make any future DMA errors obvious.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void trashBuffer(void)
|
||||||
|
{
|
||||||
|
DMAPoolBuffer *dma = SVGA3DUtil_DMAPoolGetBuffer(&vertexDMA);
|
||||||
|
|
||||||
|
memset(dma->buffer, 0, MESH_NUM_BYTES);
|
||||||
|
|
||||||
|
SVGA3DUtil_SurfaceDMA2D(vertexSid, &dma->ptr,
|
||||||
|
SVGA3D_WRITE_HOST_VRAM, MESH_NUM_BYTES, 1);
|
||||||
|
|
||||||
|
SVGA3DUtil_AsyncCall((AsyncCallFn) SVGA3DUtil_DMAPoolFreeBuffer, dma);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* uploadRow --
|
||||||
|
*
|
||||||
|
* Upload the vertex data for one row of the mesh.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void uploadRow(int row, DMAPoolBuffer *dma)
|
||||||
|
{
|
||||||
|
SVGA3dCopyBox *boxes;
|
||||||
|
SVGA3dGuestImage guestImage;
|
||||||
|
SVGA3dSurfaceImageId hostImage = { vertexSid };
|
||||||
|
|
||||||
|
guestImage.ptr = dma->ptr;
|
||||||
|
guestImage.pitch = 0;
|
||||||
|
|
||||||
|
SVGA3D_BeginSurfaceDMA(&guestImage, &hostImage, SVGA3D_WRITE_HOST_VRAM, &boxes, 1);
|
||||||
|
{
|
||||||
|
boxes[0].x = MESH_HEIGHT * sizeof(MyVertex) * row;
|
||||||
|
boxes[0].w = MESH_WIDTH * sizeof(MyVertex);
|
||||||
|
boxes[0].srcx = boxes[0].x;
|
||||||
|
boxes[0].h = 1;
|
||||||
|
boxes[0].d = 1;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* drawStrip --
|
||||||
|
*
|
||||||
|
* Draw all triangles between 'row' and 'row+1'.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
drawStrip(int row)
|
||||||
|
{
|
||||||
|
SVGA3dVertexDecl *decls;
|
||||||
|
SVGA3dPrimitiveRange *ranges;
|
||||||
|
|
||||||
|
SVGA3D_BeginDrawPrimitives(CID, &decls, 2, &ranges, 1);
|
||||||
|
{
|
||||||
|
decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION;
|
||||||
|
decls[0].array.surfaceId = vertexSid;
|
||||||
|
decls[0].array.stride = sizeof(MyVertex);
|
||||||
|
decls[0].array.offset = offsetof(MyVertex, position);
|
||||||
|
|
||||||
|
decls[1].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[1].identity.usage = SVGA3D_DECLUSAGE_COLOR;
|
||||||
|
decls[1].array.surfaceId = vertexSid;
|
||||||
|
decls[1].array.stride = sizeof(MyVertex);
|
||||||
|
decls[1].array.offset = offsetof(MyVertex, color);
|
||||||
|
|
||||||
|
ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST;
|
||||||
|
ranges[0].primitiveCount = TRIANGLES_PER_ROW;
|
||||||
|
ranges[0].indexArray.surfaceId = indexSid;
|
||||||
|
ranges[0].indexArray.stride = sizeof(IndexType);
|
||||||
|
ranges[0].indexArray.offset = sizeof(IndexType) * INDICES_PER_ROW * row;
|
||||||
|
ranges[0].indexWidth = sizeof(IndexType);
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* render --
|
||||||
|
*
|
||||||
|
* Calculate, upload, and draw the entire mesh.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
render(void)
|
||||||
|
{
|
||||||
|
DMAPoolBuffer *dma = updateVertices(0.2, 0.8, 0.2, 0, 0);
|
||||||
|
int row;
|
||||||
|
|
||||||
|
trashBuffer();
|
||||||
|
|
||||||
|
uploadRow(0, dma);
|
||||||
|
|
||||||
|
for (row = 1; row < MESH_HEIGHT; row++) {
|
||||||
|
uploadRow(row, dma);
|
||||||
|
drawStrip(row - 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_AsyncCall((AsyncCallFn) SVGA3DUtil_DMAPoolFreeBuffer, dma);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Our example's entry point, invoked directly by the bootloader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 800, 600);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
|
||||||
|
vertexSid = SVGA3DUtil_DefineSurface2D(MESH_NUM_BYTES, 1, SVGA3D_BUFFER);
|
||||||
|
indexSid = createIndexBuffer();
|
||||||
|
|
||||||
|
SVGA3DUtil_AllocDMAPool(&vertexDMA, MESH_NUM_BYTES, 16);
|
||||||
|
|
||||||
|
Matrix_Perspective(perspectiveMat, 45.0f,
|
||||||
|
gSVGA.width / (float)gSVGA.height, 0.1f, 100.0f);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
if (SVGA3DUtil_UpdateFPSCounter(&gFPS)) {
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("VMware SVGA3D Example:\n"
|
||||||
|
"Dynamic vertex buffer stress-test.\n"
|
||||||
|
"This example performs a separate DMA and "
|
||||||
|
"Draw for each row of the mesh.\n\n%s",
|
||||||
|
gFPS.text);
|
||||||
|
SVGA3DText_Update();
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH,
|
||||||
|
0x113366, 1.0f, 0);
|
||||||
|
|
||||||
|
setupFrame();
|
||||||
|
render();
|
||||||
|
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
6
examples/dynamic-vertex/Makefile
Normal file
6
examples/dynamic-vertex/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = dynamic-vertex.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
279
examples/dynamic-vertex/main.c
Normal file
279
examples/dynamic-vertex/main.c
Normal file
|
|
@ -0,0 +1,279 @@
|
||||||
|
/*
|
||||||
|
* SVGA3D example: Dynamic vertex buffers.
|
||||||
|
*
|
||||||
|
* This example shows how to efficiently stream vertex data to the
|
||||||
|
* GPU, using multiple DMA buffers but a single vertex buffer. We
|
||||||
|
* allocate DMA buffers from a pool every time we want to draw a new
|
||||||
|
* dynamic mesh, then we asynchronously recycle those buffers after
|
||||||
|
* the DMA transfer has completed.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
#include "matrix.h"
|
||||||
|
#include "math.h"
|
||||||
|
|
||||||
|
#define MESH_WIDTH 128
|
||||||
|
#define MESH_HEIGHT 128
|
||||||
|
|
||||||
|
#define MESH_NUM_VERTICES (MESH_WIDTH * MESH_HEIGHT)
|
||||||
|
#define MESH_NUM_QUADS ((MESH_WIDTH-1) * (MESH_HEIGHT-1))
|
||||||
|
#define MESH_NUM_TRIANGLES (MESH_NUM_QUADS * 2)
|
||||||
|
#define MESH_NUM_INDICES (MESH_NUM_TRIANGLES * 3)
|
||||||
|
|
||||||
|
#define MESH_ELEMENT(x, y) (MESH_WIDTH * (y) + (x))
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
float position[3];
|
||||||
|
float color[3];
|
||||||
|
} MyVertex;
|
||||||
|
|
||||||
|
typedef uint16 IndexType;
|
||||||
|
DMAPool vertexDMA;
|
||||||
|
uint32 vertexSid, indexSid;
|
||||||
|
Matrix perspectiveMat;
|
||||||
|
FPSCounterState gFPS;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* setupFrame --
|
||||||
|
*
|
||||||
|
* Set up render state that we load once per frame (because
|
||||||
|
* SVGA3DText clobbered it) and perform matrix calculations that we
|
||||||
|
* only need once per frame.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
setupFrame(void)
|
||||||
|
{
|
||||||
|
static Matrix world;
|
||||||
|
SVGA3dTextureState *ts;
|
||||||
|
SVGA3dRenderState *rs;
|
||||||
|
|
||||||
|
Matrix_Copy(world, gIdentityMatrix);
|
||||||
|
Matrix_RotateX(world, -60.0 * PI_OVER_180);
|
||||||
|
Matrix_RotateY(world, gFPS.frame * 0.001f);
|
||||||
|
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, world);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat);
|
||||||
|
|
||||||
|
SVGA3D_BeginSetRenderState(CID, &rs, 4);
|
||||||
|
{
|
||||||
|
rs[0].state = SVGA3D_RS_BLENDENABLE;
|
||||||
|
rs[0].uintValue = FALSE;
|
||||||
|
|
||||||
|
rs[1].state = SVGA3D_RS_ZENABLE;
|
||||||
|
rs[1].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[2].state = SVGA3D_RS_ZWRITEENABLE;
|
||||||
|
rs[2].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[3].state = SVGA3D_RS_ZFUNC;
|
||||||
|
rs[3].uintValue = SVGA3D_CMP_LESS;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginSetTextureState(CID, &ts, 4);
|
||||||
|
{
|
||||||
|
ts[0].stage = 0;
|
||||||
|
ts[0].name = SVGA3D_TS_BIND_TEXTURE;
|
||||||
|
ts[0].value = SVGA3D_INVALID_ID;
|
||||||
|
|
||||||
|
ts[1].stage = 0;
|
||||||
|
ts[1].name = SVGA3D_TS_COLOROP;
|
||||||
|
ts[1].value = SVGA3D_TC_SELECTARG1;
|
||||||
|
|
||||||
|
ts[2].stage = 0;
|
||||||
|
ts[2].name = SVGA3D_TS_COLORARG1;
|
||||||
|
ts[2].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
|
||||||
|
ts[3].stage = 0;
|
||||||
|
ts[3].name = SVGA3D_TS_ALPHAARG1;
|
||||||
|
ts[3].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* updateVertices --
|
||||||
|
*
|
||||||
|
* Calculate new vertices, writing them directly into an available
|
||||||
|
* DMA buffer. Asynchronously begin DMA and recycle the buffer.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
updateVertices(float red, float green, float blue, float phase, float offset)
|
||||||
|
{
|
||||||
|
DMAPoolBuffer *dma;
|
||||||
|
MyVertex *vert;
|
||||||
|
int x, y;
|
||||||
|
float t = gFPS.frame * 0.01f + phase;
|
||||||
|
|
||||||
|
dma = SVGA3DUtil_DMAPoolGetBuffer(&vertexDMA);
|
||||||
|
vert = (MyVertex*) dma->buffer;
|
||||||
|
|
||||||
|
for (y = 0; y < MESH_HEIGHT; y++) {
|
||||||
|
for (x = 0; x < MESH_WIDTH; x++) {
|
||||||
|
|
||||||
|
float fx = x * (2.0 / MESH_WIDTH) - 1.0;
|
||||||
|
float fy = y * (2.0 / MESH_HEIGHT) - 1.0;
|
||||||
|
float fxo = fx + offset;
|
||||||
|
float dist = fxo * fxo + fy * fy;
|
||||||
|
float z = sinf(dist * 8.0 + t) / (1 + dist * 10.0);
|
||||||
|
|
||||||
|
vert->position[0] = fx;
|
||||||
|
vert->position[1] = fy;
|
||||||
|
vert->position[2] = z;
|
||||||
|
|
||||||
|
vert->color[0] = red - z;
|
||||||
|
vert->color[1] = green - z;
|
||||||
|
vert->color[2] = blue - z;
|
||||||
|
|
||||||
|
vert++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_SurfaceDMA2D(vertexSid, &dma->ptr, SVGA3D_WRITE_HOST_VRAM,
|
||||||
|
MESH_NUM_VERTICES * sizeof(MyVertex), 1);
|
||||||
|
|
||||||
|
SVGA3DUtil_AsyncCall((AsyncCallFn) SVGA3DUtil_DMAPoolFreeBuffer, dma);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* drawMesh --
|
||||||
|
*
|
||||||
|
* Draw our mesh at a particular position. This uses the index and
|
||||||
|
* vertex data which is resident in the host VRAM buffers at the
|
||||||
|
* time the drawing command is executed asynchronously.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
drawMesh(float posX, float posY, float posZ)
|
||||||
|
{
|
||||||
|
SVGA3dVertexDecl *decls;
|
||||||
|
SVGA3dPrimitiveRange *ranges;
|
||||||
|
static Matrix view;
|
||||||
|
|
||||||
|
Matrix_Copy(view, gIdentityMatrix);
|
||||||
|
Matrix_Translate(view, posX, posY, posZ);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view);
|
||||||
|
|
||||||
|
SVGA3D_BeginDrawPrimitives(CID, &decls, 2, &ranges, 1);
|
||||||
|
{
|
||||||
|
decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION;
|
||||||
|
decls[0].array.surfaceId = vertexSid;
|
||||||
|
decls[0].array.stride = sizeof(MyVertex);
|
||||||
|
decls[0].array.offset = offsetof(MyVertex, position);
|
||||||
|
|
||||||
|
decls[1].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[1].identity.usage = SVGA3D_DECLUSAGE_COLOR;
|
||||||
|
decls[1].array.surfaceId = vertexSid;
|
||||||
|
decls[1].array.stride = sizeof(MyVertex);
|
||||||
|
decls[1].array.offset = offsetof(MyVertex, color);
|
||||||
|
|
||||||
|
ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST;
|
||||||
|
ranges[0].primitiveCount = MESH_NUM_TRIANGLES;
|
||||||
|
ranges[0].indexArray.surfaceId = indexSid;
|
||||||
|
ranges[0].indexArray.stride = sizeof(IndexType);
|
||||||
|
ranges[0].indexWidth = sizeof(IndexType);
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* createIndexBuffer --
|
||||||
|
*
|
||||||
|
* Create a static index buffer that renders our vertices as a 2D
|
||||||
|
* mesh. For simplicity, we use a triangle list rather than a
|
||||||
|
* triangle strip.
|
||||||
|
*/
|
||||||
|
uint32
|
||||||
|
createIndexBuffer(void)
|
||||||
|
{
|
||||||
|
IndexType *indexBuffer;
|
||||||
|
const uint32 bufferSize = MESH_NUM_INDICES * sizeof *indexBuffer;
|
||||||
|
SVGAGuestPtr gPtr;
|
||||||
|
uint32 sid;
|
||||||
|
int x, y;
|
||||||
|
|
||||||
|
sid = SVGA3DUtil_DefineSurface2D(bufferSize, 1, SVGA3D_BUFFER);
|
||||||
|
indexBuffer = SVGA3DUtil_AllocDMABuffer(bufferSize, &gPtr);
|
||||||
|
|
||||||
|
for (y = 0; y < (MESH_HEIGHT - 1); y++) {
|
||||||
|
for (x = 0; x < (MESH_WIDTH - 1); x++) {
|
||||||
|
|
||||||
|
indexBuffer[0] = MESH_ELEMENT(x, y );
|
||||||
|
indexBuffer[1] = MESH_ELEMENT(x+1, y );
|
||||||
|
indexBuffer[2] = MESH_ELEMENT(x+1, y+1);
|
||||||
|
|
||||||
|
indexBuffer[3] = MESH_ELEMENT(x+1, y+1);
|
||||||
|
indexBuffer[4] = MESH_ELEMENT(x, y+1);
|
||||||
|
indexBuffer[5] = MESH_ELEMENT(x, y );
|
||||||
|
|
||||||
|
indexBuffer += 6;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_SurfaceDMA2D(sid, &gPtr, SVGA3D_WRITE_HOST_VRAM, bufferSize, 1);
|
||||||
|
|
||||||
|
return sid;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Our example's entry point, invoked directly by the bootloader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 800, 600);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
|
||||||
|
vertexSid = SVGA3DUtil_DefineSurface2D(MESH_NUM_VERTICES * sizeof(MyVertex),
|
||||||
|
1, SVGA3D_BUFFER);
|
||||||
|
indexSid = createIndexBuffer();
|
||||||
|
|
||||||
|
SVGA3DUtil_AllocDMAPool(&vertexDMA, MESH_NUM_VERTICES * sizeof(MyVertex), 16);
|
||||||
|
|
||||||
|
Matrix_Perspective(perspectiveMat, 45.0f,
|
||||||
|
gSVGA.width / (float)gSVGA.height, 0.1f, 100.0f);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
if (SVGA3DUtil_UpdateFPSCounter(&gFPS)) {
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("VMware SVGA3D Example:\n"
|
||||||
|
"Dynamic vertex buffers.\n\n%s",
|
||||||
|
gFPS.text);
|
||||||
|
SVGA3DText_Update();
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH,
|
||||||
|
0x113366, 1.0f, 0);
|
||||||
|
|
||||||
|
setupFrame();
|
||||||
|
|
||||||
|
updateVertices(1, 0.5, 0.5, M_PI, 0);
|
||||||
|
drawMesh(-1.5, -1, 6);
|
||||||
|
|
||||||
|
updateVertices(0.5, 1.0, 0.5, 0, 0);
|
||||||
|
drawMesh(0, 1, 6);
|
||||||
|
|
||||||
|
updateVertices(0.5, 0.5, 1.0, 0, 1.5);
|
||||||
|
drawMesh(1.5, -1, 6);
|
||||||
|
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
6
examples/fence-stress/Makefile
Normal file
6
examples/fence-stress/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = fence-stress.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
58
examples/fence-stress/main.c
Normal file
58
examples/fence-stress/main.c
Normal file
|
|
@ -0,0 +1,58 @@
|
||||||
|
/*
|
||||||
|
* SVGA3D example: Stress-test for our FIFO Fence synchronization.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
|
||||||
|
#define SYNCS_PER_FRAME 1024
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
int i, j;
|
||||||
|
uint32 fence = 0;
|
||||||
|
static FPSCounterState gFPS;
|
||||||
|
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 640, 480);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
SVGA3DUtil_UpdateFPSCounter(&gFPS);
|
||||||
|
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("VMware SVGA3D Example:\n"
|
||||||
|
"FIFO Fence stress-test.\n"
|
||||||
|
"%d syncs per frame.\n"
|
||||||
|
"\n"
|
||||||
|
"%s\n"
|
||||||
|
"\n"
|
||||||
|
"Latest fence: 0x%08x\n"
|
||||||
|
" IRQ count: %d\n",
|
||||||
|
SYNCS_PER_FRAME, gFPS.text, fence, gSVGA.irq.count);
|
||||||
|
SVGA3DText_Update();
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR, 0, 1.0f, 0);
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
|
||||||
|
for (j = 0; j < SYNCS_PER_FRAME; j++) {
|
||||||
|
for (i=0; i<100; i++) {
|
||||||
|
SVGA_InsertFence();
|
||||||
|
}
|
||||||
|
|
||||||
|
fence = SVGA_InsertFence();
|
||||||
|
|
||||||
|
for (i=0; i<50; i++) {
|
||||||
|
SVGA_InsertFence();
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA_SyncToFence(fence);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
7
examples/gmr-test/Makefile
Normal file
7
examples/gmr-test/Makefile
Normal file
|
|
@ -0,0 +1,7 @@
|
||||||
|
TARGET = gmr-test.img
|
||||||
|
VMX_MEMSIZE = 128
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
578
examples/gmr-test/main.c
Normal file
578
examples/gmr-test/main.c
Normal file
|
|
@ -0,0 +1,578 @@
|
||||||
|
/*
|
||||||
|
* SVGA3D example: Test harness and low-level example program for
|
||||||
|
* Guest Memory Regions.
|
||||||
|
*
|
||||||
|
* With Guest Memory regions, the SVGA device can perform DMA
|
||||||
|
* operations directly between guest system memory and host
|
||||||
|
* VRAM. Guest drivers use the device's GMR registers to set up
|
||||||
|
* regions of guest memory which can be accessed by the device, then
|
||||||
|
* the driver refers to these regions by ID when sending pointers over
|
||||||
|
* the command FIFO.
|
||||||
|
*
|
||||||
|
* GMRs support physically contiguous or discontiguous memory. This
|
||||||
|
* example is a bit contrived because we're testing GMRs without an
|
||||||
|
* operating system or a virtual memory subsystem- in a real OS,
|
||||||
|
* support for physically discontiguous addresses would often be
|
||||||
|
* required in order to ensure that the GMR's address space matches
|
||||||
|
* that of a particular virtual address space in the OS. In this
|
||||||
|
* example, we just test physically discontiguous regions for the sake
|
||||||
|
* of testing them.
|
||||||
|
*
|
||||||
|
* This test harness is focused on system memory GMRs, however it also
|
||||||
|
* ends up testing much of the GLSurface and GLFBO code, since it
|
||||||
|
* performs GMR-to-GMR copies by way of surface DMA operations.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga.h"
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
#include "console_vga.h"
|
||||||
|
#include "gmr.h"
|
||||||
|
#include "math.h"
|
||||||
|
#include "mt19937ar.h"
|
||||||
|
|
||||||
|
/* Maximum number of copy boxes we'll test with. The host has no limit. */
|
||||||
|
#define MAX_COPY_BOXES 128
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Global data
|
||||||
|
*/
|
||||||
|
|
||||||
|
static uint32 tempSurfaceId;
|
||||||
|
static uint32 randSeed;
|
||||||
|
static uint32 testIters;
|
||||||
|
static uint32 testRegionSize;
|
||||||
|
static const char *testPass;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* TestPattern_Write --
|
||||||
|
* TestPattern_Check --
|
||||||
|
*
|
||||||
|
* Write/check an arbitrary deterministic test pattern in the
|
||||||
|
* provided buffer. The buffer must be a multiple of 4 bytes long.
|
||||||
|
*
|
||||||
|
* Instead of generating a unique random number for every word,
|
||||||
|
* which would be pretty slow, this generates a prime number of
|
||||||
|
* random words, which then repeat across the entire check range.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define PATTERN_BUFFER_LEN 41 // Must be prime
|
||||||
|
|
||||||
|
void
|
||||||
|
TestPattern_Write(uint32 *buffer,
|
||||||
|
uint32 size)
|
||||||
|
{
|
||||||
|
#ifndef DISABLE_CHECKING
|
||||||
|
uint32 pattern[PATTERN_BUFFER_LEN];
|
||||||
|
int i;
|
||||||
|
|
||||||
|
init_genrand(randSeed);
|
||||||
|
for (i = 0; i < PATTERN_BUFFER_LEN; i++) {
|
||||||
|
pattern[i] = genrand_int32();
|
||||||
|
}
|
||||||
|
i = 0;
|
||||||
|
|
||||||
|
size /= sizeof *buffer;
|
||||||
|
while (size--) {
|
||||||
|
*(buffer++) = pattern[i];
|
||||||
|
if (++i == PATTERN_BUFFER_LEN) {
|
||||||
|
i = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
TestPattern_Check(uint32 *buffer,
|
||||||
|
uint32 size,
|
||||||
|
uint32 offset,
|
||||||
|
uint32 line,
|
||||||
|
uint32 index)
|
||||||
|
{
|
||||||
|
#ifndef DISABLE_CHECKING
|
||||||
|
uint32 pattern[PATTERN_BUFFER_LEN];
|
||||||
|
int i;
|
||||||
|
|
||||||
|
init_genrand(randSeed);
|
||||||
|
for (i = 0; i < PATTERN_BUFFER_LEN; i++) {
|
||||||
|
pattern[i] = genrand_int32();
|
||||||
|
}
|
||||||
|
|
||||||
|
offset /= sizeof *buffer;
|
||||||
|
size /= sizeof *buffer;
|
||||||
|
|
||||||
|
i = offset % PATTERN_BUFFER_LEN;
|
||||||
|
|
||||||
|
while (size) {
|
||||||
|
uint32 v = pattern[i];
|
||||||
|
if (++i == PATTERN_BUFFER_LEN) {
|
||||||
|
i = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (*buffer != v) {
|
||||||
|
SVGA_Disable();
|
||||||
|
ConsoleVGA_Init();
|
||||||
|
Console_Format("Test pattern mismatch on %4x.%4x\n"
|
||||||
|
"Test pass: %s\n"
|
||||||
|
"Mismatch at %08x, with %08x bytes left in block.\n\n",
|
||||||
|
line, index, testPass, buffer, size * sizeof *buffer);
|
||||||
|
|
||||||
|
size = MIN(size, 16);
|
||||||
|
while (size) {
|
||||||
|
Console_Format("Actual: %08x Expected: %08x\n",
|
||||||
|
*buffer, v);
|
||||||
|
buffer++;
|
||||||
|
size--;
|
||||||
|
|
||||||
|
v = pattern[i];
|
||||||
|
if (++i == PATTERN_BUFFER_LEN) {
|
||||||
|
i = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Intr_Disable();
|
||||||
|
Intr_Halt();
|
||||||
|
}
|
||||||
|
|
||||||
|
buffer++;
|
||||||
|
size--;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* GMR_GenericCopy --
|
||||||
|
*
|
||||||
|
* Copy between two GMRs, using an arbitrarily shaped buffer
|
||||||
|
* surface and an arbitrary list of copy boxes.
|
||||||
|
*
|
||||||
|
* In the copy boxes, the 'source' represents locations
|
||||||
|
* on both guest surfaces and the 'destination' represents
|
||||||
|
* a locations in host VRAM.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
GMR_GenericCopy(SVGAGuestPtr *dest,
|
||||||
|
SVGAGuestPtr *src,
|
||||||
|
SVGA3dSize *surfSize,
|
||||||
|
SVGA3dSurfaceFormat format,
|
||||||
|
SVGA3dCopyBox *boxes,
|
||||||
|
uint32 numBoxes)
|
||||||
|
{
|
||||||
|
SVGA3dSize *mipSizes;
|
||||||
|
SVGA3dSurfaceFace *faces;
|
||||||
|
SVGA3dCopyBox *dmaBoxes;
|
||||||
|
SVGA3dGuestImage srcImage = { *src };
|
||||||
|
SVGA3dGuestImage destImage = { *dest };
|
||||||
|
SVGA3dSurfaceImageId hostImage = { tempSurfaceId };
|
||||||
|
|
||||||
|
SVGA3D_BeginDefineSurface(tempSurfaceId, 0, format, &faces, &mipSizes, 1);
|
||||||
|
faces[0].numMipLevels = 1;
|
||||||
|
mipSizes[0] = *surfSize;
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginSurfaceDMA(&srcImage, &hostImage, SVGA3D_WRITE_HOST_VRAM,
|
||||||
|
&dmaBoxes, numBoxes);
|
||||||
|
memcpy(dmaBoxes, boxes, numBoxes * sizeof boxes[0]);
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginSurfaceDMA(&destImage, &hostImage, SVGA3D_READ_HOST_VRAM,
|
||||||
|
&dmaBoxes, numBoxes);
|
||||||
|
memcpy(dmaBoxes, boxes, numBoxes * sizeof boxes[0]);
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_DestroySurface(tempSurfaceId);
|
||||||
|
|
||||||
|
/* Wait for both DMA operations to finish. */
|
||||||
|
SVGA_SyncToFence(SVGA_InsertFence());
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Display_BeginPass --
|
||||||
|
*
|
||||||
|
* Begin a new test pass, and update the on-screen display.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
Display_BeginPass(const char *pass)
|
||||||
|
{
|
||||||
|
testPass = pass;
|
||||||
|
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("VMware SVGA3D Example:\n"
|
||||||
|
"Guest Memory Region stress-test.\n"
|
||||||
|
"\n"
|
||||||
|
"Host capabilities\n"
|
||||||
|
"-----------------\n"
|
||||||
|
"\n"
|
||||||
|
" Max IDs: %d\n"
|
||||||
|
" Max Descriptor Len: %d\n"
|
||||||
|
"\n"
|
||||||
|
"Test status\n"
|
||||||
|
"-----------\n"
|
||||||
|
"\n"
|
||||||
|
" Iterations: %d\n"
|
||||||
|
" Seed: %08x\n"
|
||||||
|
" Running: %s\n"
|
||||||
|
"\n"
|
||||||
|
#ifdef DISABLE_CHECKING
|
||||||
|
"CHECKING DISABLED. This test can't fail.\n",
|
||||||
|
#else
|
||||||
|
"Test is running successfully so far. Will Panic on failure.\n",
|
||||||
|
#endif
|
||||||
|
gGMR.maxIds, gGMR.maxDescriptorLen, testIters,
|
||||||
|
randSeed, testPass);
|
||||||
|
|
||||||
|
VMBackdoor_VGAScreenshot();
|
||||||
|
SVGA3DText_Update();
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR, 0x000080, 1.0f, 0);
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* runTestPass --
|
||||||
|
*
|
||||||
|
* Run one test pass- create two large GMRs, one contiguous and one
|
||||||
|
* discontiguous. Copy a test pattern back and forth between the
|
||||||
|
* two buffers, using the provided surface size and type.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
runTestPass(uint32 testRegionSize,
|
||||||
|
SVGA3dSize *surfSize,
|
||||||
|
SVGA3dSurfaceFormat format,
|
||||||
|
SVGA3dCopyBox *boxes,
|
||||||
|
uint32 numBoxes)
|
||||||
|
{
|
||||||
|
SVGAGuestPtr contig = { 0, 0 };
|
||||||
|
SVGAGuestPtr evenPages = { gGMR.maxIds - 1, 0 };
|
||||||
|
int i;
|
||||||
|
|
||||||
|
uint32 contigPages = GMR_DefineContiguous(contig.gmrId, gGMR.maxDescriptorLen * 2);
|
||||||
|
uint32 discontigPages = GMR_DefineEvenPages(evenPages.gmrId, gGMR.maxDescriptorLen);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Write a test pattern into the contiguous GMR.
|
||||||
|
*/
|
||||||
|
|
||||||
|
TestPattern_Write(PPN_POINTER(contigPages), testRegionSize);
|
||||||
|
TestPattern_Check(PPN_POINTER(contigPages), testRegionSize, 0, __LINE__, 0);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copy from contiguous to discontiguous.
|
||||||
|
*/
|
||||||
|
|
||||||
|
GMR_GenericCopy(&evenPages, &contig, surfSize, format, boxes, numBoxes);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Check the discontiguous GMR, page-by-page.
|
||||||
|
*/
|
||||||
|
|
||||||
|
for (i = 0; i < testRegionSize / PAGE_SIZE; i++) {
|
||||||
|
TestPattern_Check(PPN_POINTER(discontigPages + 2*i),
|
||||||
|
PAGE_SIZE, PAGE_SIZE * i, __LINE__, i);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Clear the contiguous GMR, then copy data back into it from the discontiguous GMR.
|
||||||
|
*/
|
||||||
|
|
||||||
|
memset(PPN_POINTER(contigPages), 0x42, testRegionSize);
|
||||||
|
GMR_GenericCopy(&contig, &evenPages, surfSize, format, boxes, numBoxes);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Check the contiguous GMR again.
|
||||||
|
*/
|
||||||
|
|
||||||
|
TestPattern_Check(PPN_POINTER(contigPages), testRegionSize, 0, __LINE__, i);
|
||||||
|
|
||||||
|
GMR_FreeAll();
|
||||||
|
Heap_Reset();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* createBoxes --
|
||||||
|
*
|
||||||
|
* Create an array of N copyboxes which cover an entire surface.
|
||||||
|
* This begins with a single large copybox, and iteratively splits
|
||||||
|
* small boxes off from a random face on the original box.
|
||||||
|
*
|
||||||
|
* This function can and will generate degenerate copy boxes
|
||||||
|
* (zero-size). The SVGA3D device must ignore those boxes.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
createBoxes(SVGA3dSize *size,
|
||||||
|
SVGA3dCopyBox *boxes,
|
||||||
|
uint32 numBoxes)
|
||||||
|
{
|
||||||
|
uint32 i;
|
||||||
|
SVGA3dCopyBox space = {
|
||||||
|
.w = size->width,
|
||||||
|
.h = size->height,
|
||||||
|
.d = size->depth,
|
||||||
|
};
|
||||||
|
|
||||||
|
init_genrand(randSeed);
|
||||||
|
|
||||||
|
for (i = 0; i < numBoxes - 1; i++) {
|
||||||
|
uint32 rand = genrand_int32();
|
||||||
|
uint32 a;
|
||||||
|
memcpy(&boxes[i], &space, sizeof space);
|
||||||
|
switch (rand % 6) {
|
||||||
|
|
||||||
|
case 0: /* X- */
|
||||||
|
a = rand % space.w;
|
||||||
|
boxes[i].w = a;
|
||||||
|
space.x += a;
|
||||||
|
space.w -= a;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 1: /* Y- */
|
||||||
|
a = rand % space.h;
|
||||||
|
boxes[i].h = a;
|
||||||
|
space.y += a;
|
||||||
|
space.h -= a;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 2: /* Z- */
|
||||||
|
a = rand % space.d;
|
||||||
|
boxes[i].d = a;
|
||||||
|
space.z += a;
|
||||||
|
space.d -= a;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 3: /* X+ */
|
||||||
|
a = rand % space.w;
|
||||||
|
boxes[i].w = a;
|
||||||
|
space.w -= a;
|
||||||
|
boxes[i].x += space.w;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 4: /* Y+ */
|
||||||
|
a = rand % space.h;
|
||||||
|
boxes[i].h = a;
|
||||||
|
space.h -= a;
|
||||||
|
boxes[i].y += space.h;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 5: /* Z+ */
|
||||||
|
a = rand % space.d;
|
||||||
|
boxes[i].d = a;
|
||||||
|
space.d -= a;
|
||||||
|
boxes[i].z += space.d;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
boxes[i] = space;
|
||||||
|
|
||||||
|
for (i = 0; i < numBoxes; i++) {
|
||||||
|
boxes[i].srcx = boxes[i].x;
|
||||||
|
boxes[i].srcy = boxes[i].y;
|
||||||
|
boxes[i].srcz = boxes[i].z;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* createMisaligned1dBoxes --
|
||||||
|
*
|
||||||
|
* Create an array of N 1-dimensional copyboxes, most of which
|
||||||
|
* have a width of PAGE_SIZE-1 bytes.
|
||||||
|
*
|
||||||
|
* The boxes may extend past the end of 'size'. This is okay,
|
||||||
|
* the SVGA3D device is responsible for clipping them.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
createMisaligned1dBoxes(uint32 size,
|
||||||
|
SVGA3dCopyBox *boxes,
|
||||||
|
uint32 numBoxes)
|
||||||
|
{
|
||||||
|
uint32 offset = 0;
|
||||||
|
uint32 i;
|
||||||
|
|
||||||
|
memset(boxes, 0, sizeof *boxes * numBoxes);
|
||||||
|
|
||||||
|
for (i = 0; i < numBoxes - 1; i++) {
|
||||||
|
boxes[i].x = boxes[i].srcx = offset;
|
||||||
|
boxes[i].w = PAGE_SIZE-1;
|
||||||
|
boxes[i].h = 1;
|
||||||
|
boxes[i].d = 1;
|
||||||
|
offset += boxes[i].w;
|
||||||
|
}
|
||||||
|
|
||||||
|
boxes[i].x = boxes[i].srcx = offset;
|
||||||
|
boxes[i].w = size - offset;
|
||||||
|
boxes[i].h = 1;
|
||||||
|
boxes[i].d = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* runTests --
|
||||||
|
*
|
||||||
|
* Main function to run one iteration of all tests.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
runTests(void)
|
||||||
|
{
|
||||||
|
/* Maximum size of worst-case-discontiguous region we can represent */
|
||||||
|
uint32 largeRegionSize = gGMR.maxDescriptorLen * PAGE_SIZE;
|
||||||
|
|
||||||
|
/* Smaller region, to speed up other testing. */
|
||||||
|
uint32 regionSize = 0x20 * PAGE_SIZE;
|
||||||
|
|
||||||
|
/* Smallest region, suitable for 1D textures. */
|
||||||
|
uint32 tinyRegionSize = 1024;
|
||||||
|
|
||||||
|
SVGA3dSize size1dLarge = {
|
||||||
|
.width = largeRegionSize,
|
||||||
|
.height = 1,
|
||||||
|
.depth = 1,
|
||||||
|
};
|
||||||
|
|
||||||
|
SVGA3dSize size1d = {
|
||||||
|
.width = tinyRegionSize,
|
||||||
|
.height = 1,
|
||||||
|
.depth = 1,
|
||||||
|
};
|
||||||
|
|
||||||
|
SVGA3dSize size2d = {
|
||||||
|
.width = 0x100,
|
||||||
|
.height = regionSize / 0x100,
|
||||||
|
.depth = 1,
|
||||||
|
};
|
||||||
|
|
||||||
|
SVGA3dSize size3d = {
|
||||||
|
.width = 0x40,
|
||||||
|
.height = 0x40,
|
||||||
|
.depth = regionSize / 0x1000,
|
||||||
|
};
|
||||||
|
|
||||||
|
/* A single maximally-sized 1D copybox. The host will clip it. */
|
||||||
|
SVGA3dCopyBox maxBox1d = {
|
||||||
|
.w = 0xFFFFFFFFUL,
|
||||||
|
.h = 1,
|
||||||
|
.d = 1,
|
||||||
|
};
|
||||||
|
|
||||||
|
SVGA3dCopyBox boxes[MAX_COPY_BOXES];
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Basic per-surface-format tests.
|
||||||
|
*
|
||||||
|
* Note that 3D compressed textures are not expected to work yet,
|
||||||
|
* so we skip those tests.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define TEST_FORMAT_2D(f, b) \
|
||||||
|
{ \
|
||||||
|
Display_BeginPass("Single copy via 1D " #f " surface."); \
|
||||||
|
runTestPass(tinyRegionSize*b, &size1d, SVGA3D_ ## f, &maxBox1d, 1); \
|
||||||
|
\
|
||||||
|
Display_BeginPass("Single copy via 2D " #f " surface."); \
|
||||||
|
createBoxes(&size2d, boxes, 1); \
|
||||||
|
runTestPass(regionSize*b, &size2d, SVGA3D_ ## f, boxes, 1); \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define TEST_FORMAT(f, b) \
|
||||||
|
{ \
|
||||||
|
TEST_FORMAT_2D(f, b) \
|
||||||
|
\
|
||||||
|
Display_BeginPass("Single copy via 3D " #f " surface."); \
|
||||||
|
createBoxes(&size3d, boxes, 1); \
|
||||||
|
runTestPass(regionSize*b, &size3d, SVGA3D_ ## f, boxes, 1); \
|
||||||
|
}
|
||||||
|
|
||||||
|
TEST_FORMAT(BUFFER, 1) // Buffers use their own host VRAM type
|
||||||
|
TEST_FORMAT(LUMINANCE8, 1) // Test a simple 8bpp format
|
||||||
|
TEST_FORMAT(ALPHA8, 1) // To isolate alpha channel bugs
|
||||||
|
TEST_FORMAT(A8R8G8B8, 4) // ARGB surfaces have more readback paths than others
|
||||||
|
TEST_FORMAT_2D(DXT2, 1) // Test 4x4 block size, and compressed texture upload/download
|
||||||
|
|
||||||
|
#undef TEST_FORMAT
|
||||||
|
#undef TEST_FORMAT_2D
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Test large buffers (Limited by max size of worst-case fragmented GMR)
|
||||||
|
*/
|
||||||
|
|
||||||
|
Display_BeginPass("Single copy via 1D BUFFER surface. (Large region)");
|
||||||
|
runTestPass(largeRegionSize, &size1dLarge, SVGA3D_BUFFER, &maxBox1d, 1);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Test with randomly subdivided copyboxes.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define TEST_FORMAT_2D(f, b) \
|
||||||
|
{ \
|
||||||
|
Display_BeginPass("Subdivided copy via 2D " #f " surface."); \
|
||||||
|
createBoxes(&size2d, boxes, MAX_COPY_BOXES); \
|
||||||
|
runTestPass(regionSize*b, &size2d, SVGA3D_ ## f, boxes, MAX_COPY_BOXES); \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define TEST_FORMAT(f, b) \
|
||||||
|
{ \
|
||||||
|
TEST_FORMAT_2D(f, b) \
|
||||||
|
\
|
||||||
|
Display_BeginPass("Subdivided copy via 3D " #f " surface."); \
|
||||||
|
createBoxes(&size3d, boxes, MAX_COPY_BOXES); \
|
||||||
|
runTestPass(regionSize*b, &size3d, SVGA3D_ ## f, boxes, MAX_COPY_BOXES); \
|
||||||
|
}
|
||||||
|
|
||||||
|
TEST_FORMAT(BUFFER, 1)
|
||||||
|
TEST_FORMAT(ALPHA8, 1)
|
||||||
|
TEST_FORMAT(A8R8G8B8, 4)
|
||||||
|
TEST_FORMAT_2D(DXT2, 1) // Test compressed texture rectangle clipping
|
||||||
|
|
||||||
|
#undef TEST_FORMAT
|
||||||
|
#undef TEST_FORMAT_2D
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Test another large 1D copy, split into slightly misaligned chunks.
|
||||||
|
*/
|
||||||
|
|
||||||
|
Display_BeginPass("Misaligned copies via 1D BUFFER surface. (Large region)");
|
||||||
|
createMisaligned1dBoxes(largeRegionSize, boxes, MAX_COPY_BOXES);
|
||||||
|
runTestPass(largeRegionSize, &size1dLarge, SVGA3D_BUFFER, boxes, MAX_COPY_BOXES);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Entry point and main loop for the example.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 640, 480);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
GMR_Init();
|
||||||
|
Heap_Reset();
|
||||||
|
|
||||||
|
tempSurfaceId = SVGA3DUtil_AllocSurfaceID();
|
||||||
|
testRegionSize = gGMR.maxDescriptorLen * PAGE_SIZE;
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
runTests();
|
||||||
|
|
||||||
|
randSeed = genrand_int32();
|
||||||
|
testIters++;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
16
examples/half-float-test/Makefile
Normal file
16
examples/half-float-test/Makefile
Normal file
|
|
@ -0,0 +1,16 @@
|
||||||
|
TARGET = half-float-test.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
|
|
||||||
|
.PHONY: shaders
|
||||||
|
|
||||||
|
shaders: cube_vs.h cube_ps.h
|
||||||
|
|
||||||
|
cube_vs.h: cube.fx
|
||||||
|
wine fxc.exe /T vs_2_0 /E MyVertexShader /Fh cube_vs.h cube.fx
|
||||||
|
|
||||||
|
cube_ps.h: cube.fx
|
||||||
|
wine fxc.exe /T ps_2_0 /E MyPixelShader /Fh cube_ps.h cube.fx
|
||||||
36
examples/half-float-test/cube.fx
Normal file
36
examples/half-float-test/cube.fx
Normal file
|
|
@ -0,0 +1,36 @@
|
||||||
|
float4x4 matView, matProj;
|
||||||
|
|
||||||
|
struct VS_Input
|
||||||
|
{
|
||||||
|
float4 Pos : POSITION;
|
||||||
|
float4 Color : COLOR0;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct VS_Output
|
||||||
|
{
|
||||||
|
float4 Pos : POSITION;
|
||||||
|
float4 Color : COLOR0;
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
VS_Output
|
||||||
|
MyVertexShader(VS_Input Input)
|
||||||
|
{
|
||||||
|
VS_Output Output;
|
||||||
|
|
||||||
|
Output.Pos = mul(mul(Input.Pos, matView), matProj);
|
||||||
|
Output.Color = Input.Color;
|
||||||
|
|
||||||
|
return Output;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct PS_Input
|
||||||
|
{
|
||||||
|
float4 Color : COLOR0;
|
||||||
|
};
|
||||||
|
|
||||||
|
float4
|
||||||
|
MyPixelShader(PS_Input Input) : COLOR
|
||||||
|
{
|
||||||
|
return Input.Color;
|
||||||
|
}
|
||||||
21
examples/half-float-test/cube_ps.h
Normal file
21
examples/half-float-test/cube_ps.h
Normal file
|
|
@ -0,0 +1,21 @@
|
||||||
|
#if 0
|
||||||
|
//
|
||||||
|
// Generated by Microsoft (R) D3DX9 Shader Compiler
|
||||||
|
//
|
||||||
|
// fxc /T ps_2_0 /E MyPixelShader /Fh cube_ps.h cube.fx
|
||||||
|
//
|
||||||
|
ps_2_0
|
||||||
|
dcl v0
|
||||||
|
mov oC0, v0
|
||||||
|
|
||||||
|
// approximately 1 instruction slot used
|
||||||
|
#endif
|
||||||
|
|
||||||
|
const DWORD g_ps20_MyPixelShader[] =
|
||||||
|
{
|
||||||
|
0xffff0200, 0x0013fffe, 0x42415443, 0x0000001c, 0x00000023, 0xffff0200,
|
||||||
|
0x00000000, 0x00000000, 0x20000100, 0x0000001c, 0x325f7370, 0x4d00305f,
|
||||||
|
0x6f726369, 0x74666f73, 0x29522820, 0x44334420, 0x53203958, 0x65646168,
|
||||||
|
0x6f432072, 0x6c69706d, 0x00207265, 0x0200001f, 0x80000000, 0x900f0000,
|
||||||
|
0x02000001, 0x800f0800, 0x90e40000, 0x0000ffff
|
||||||
|
};
|
||||||
54
examples/half-float-test/cube_vs.h
Normal file
54
examples/half-float-test/cube_vs.h
Normal file
|
|
@ -0,0 +1,54 @@
|
||||||
|
#if 0
|
||||||
|
//
|
||||||
|
// Generated by Microsoft (R) D3DX9 Shader Compiler
|
||||||
|
//
|
||||||
|
// fxc /T vs_2_0 /E MyVertexShader /Fh cube_vs.h cube.fx
|
||||||
|
//
|
||||||
|
//
|
||||||
|
// Parameters:
|
||||||
|
//
|
||||||
|
// float4x4 matProj;
|
||||||
|
// float4x4 matView;
|
||||||
|
//
|
||||||
|
//
|
||||||
|
// Registers:
|
||||||
|
//
|
||||||
|
// Name Reg Size
|
||||||
|
// ------------ ----- ----
|
||||||
|
// matView c0 4
|
||||||
|
// matProj c4 4
|
||||||
|
//
|
||||||
|
|
||||||
|
vs_2_0
|
||||||
|
dcl_position v0
|
||||||
|
dcl_color v1
|
||||||
|
dp4 r0.x, v0, c0
|
||||||
|
dp4 r0.y, v0, c1
|
||||||
|
dp4 r0.z, v0, c2
|
||||||
|
dp4 r0.w, v0, c3
|
||||||
|
dp4 oPos.x, r0, c4
|
||||||
|
dp4 oPos.y, r0, c5
|
||||||
|
dp4 oPos.z, r0, c6
|
||||||
|
dp4 oPos.w, r0, c7
|
||||||
|
mov oD0, v1
|
||||||
|
|
||||||
|
// approximately 9 instruction slots used
|
||||||
|
#endif
|
||||||
|
|
||||||
|
const DWORD g_vs20_MyVertexShader[] =
|
||||||
|
{
|
||||||
|
0xfffe0200, 0x0025fffe, 0x42415443, 0x0000001c, 0x0000006b, 0xfffe0200,
|
||||||
|
0x00000002, 0x0000001c, 0x20000100, 0x00000064, 0x00000044, 0x00040002,
|
||||||
|
0x00000004, 0x0000004c, 0x00000000, 0x0000005c, 0x00000002, 0x00000004,
|
||||||
|
0x0000004c, 0x00000000, 0x5074616d, 0x006a6f72, 0x00030003, 0x00040004,
|
||||||
|
0x00000001, 0x00000000, 0x5674616d, 0x00776569, 0x325f7376, 0x4d00305f,
|
||||||
|
0x6f726369, 0x74666f73, 0x29522820, 0x44334420, 0x53203958, 0x65646168,
|
||||||
|
0x6f432072, 0x6c69706d, 0x00207265, 0x0200001f, 0x80000000, 0x900f0000,
|
||||||
|
0x0200001f, 0x8000000a, 0x900f0001, 0x03000009, 0x80010000, 0x90e40000,
|
||||||
|
0xa0e40000, 0x03000009, 0x80020000, 0x90e40000, 0xa0e40001, 0x03000009,
|
||||||
|
0x80040000, 0x90e40000, 0xa0e40002, 0x03000009, 0x80080000, 0x90e40000,
|
||||||
|
0xa0e40003, 0x03000009, 0xc0010000, 0x80e40000, 0xa0e40004, 0x03000009,
|
||||||
|
0xc0020000, 0x80e40000, 0xa0e40005, 0x03000009, 0xc0040000, 0x80e40000,
|
||||||
|
0xa0e40006, 0x03000009, 0xc0080000, 0x80e40000, 0xa0e40007, 0x02000001,
|
||||||
|
0xd00f0000, 0x90e40001, 0x0000ffff
|
||||||
|
};
|
||||||
227
examples/half-float-test/main.c
Normal file
227
examples/half-float-test/main.c
Normal file
|
|
@ -0,0 +1,227 @@
|
||||||
|
/*
|
||||||
|
* Test support for half-precision (16-bit) floating point.
|
||||||
|
*
|
||||||
|
* This test draws four cubes, to test fixed-function and programmable
|
||||||
|
* pipelines, and to test 16-bit and 32-bit float vertices.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
#include "matrix.h"
|
||||||
|
#include "math.h"
|
||||||
|
|
||||||
|
typedef uint32 DWORD;
|
||||||
|
#include "cube_vs.h"
|
||||||
|
#include "cube_ps.h"
|
||||||
|
|
||||||
|
/* 16-bit floating point constants */
|
||||||
|
#define HALF_0 0x0000
|
||||||
|
#define HALF_POS_1 0x3c00
|
||||||
|
#define HALF_NEG_1 0xbc00
|
||||||
|
|
||||||
|
#define MY_VSHADER_ID 0
|
||||||
|
#define MY_PSHADER_ID 0
|
||||||
|
|
||||||
|
#define CONST_MAT_VIEW 0
|
||||||
|
#define CONST_MAT_PROJ 4
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
float position32[3];
|
||||||
|
uint16 position16[4];
|
||||||
|
uint32 color;
|
||||||
|
} MyVertex;
|
||||||
|
|
||||||
|
static const MyVertex vertexData[] = {
|
||||||
|
{ {-1, -1, -1}, {HALF_NEG_1, HALF_NEG_1, HALF_NEG_1, HALF_POS_1}, 0xFFFFFF },
|
||||||
|
{ {-1, -1, 1}, {HALF_NEG_1, HALF_NEG_1, HALF_POS_1, HALF_POS_1}, 0xFFFF00 },
|
||||||
|
{ {-1, 1, -1}, {HALF_NEG_1, HALF_POS_1, HALF_NEG_1, HALF_POS_1}, 0xFF00FF },
|
||||||
|
{ {-1, 1, 1}, {HALF_NEG_1, HALF_POS_1, HALF_POS_1, HALF_POS_1}, 0xFF0000 },
|
||||||
|
{ { 1, -1, -1}, {HALF_POS_1, HALF_NEG_1, HALF_NEG_1, HALF_POS_1}, 0x00FFFF },
|
||||||
|
{ { 1, -1, 1}, {HALF_POS_1, HALF_NEG_1, HALF_POS_1, HALF_POS_1}, 0x00FF00 },
|
||||||
|
{ { 1, 1, -1}, {HALF_POS_1, HALF_POS_1, HALF_NEG_1, HALF_POS_1}, 0x0000FF },
|
||||||
|
{ { 1, 1, 1}, {HALF_POS_1, HALF_POS_1, HALF_POS_1, HALF_POS_1}, 0x000000 },
|
||||||
|
};
|
||||||
|
|
||||||
|
#define QUAD(a,b,c,d) a, b, d, d, c, a
|
||||||
|
|
||||||
|
static const uint16 indexData[] = {
|
||||||
|
QUAD(0,1,2,3), // -X
|
||||||
|
QUAD(4,5,6,7), // +X
|
||||||
|
QUAD(0,1,4,5), // -Y
|
||||||
|
QUAD(2,3,6,7), // +Y
|
||||||
|
QUAD(0,2,4,6), // -Z
|
||||||
|
QUAD(1,3,5,7), // +Z
|
||||||
|
};
|
||||||
|
|
||||||
|
#undef QUAD
|
||||||
|
|
||||||
|
const uint32 numTriangles = sizeof indexData / sizeof indexData[0] / 3;
|
||||||
|
uint32 vertexSid, indexSid;
|
||||||
|
Matrix perspectiveMat;
|
||||||
|
FPSCounterState gFPS;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* renderCube --
|
||||||
|
*
|
||||||
|
* Render one cube at the supplied X/Y coordinate, using either
|
||||||
|
* shaders or fixed-function, and using either 16-bit or 32-bit
|
||||||
|
* vertex data.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
renderCube(float x,
|
||||||
|
float y,
|
||||||
|
Bool useShaders,
|
||||||
|
Bool useHalf)
|
||||||
|
{
|
||||||
|
SVGA3dTextureState *ts;
|
||||||
|
SVGA3dRenderState *rs;
|
||||||
|
SVGA3dVertexDecl *decls;
|
||||||
|
SVGA3dPrimitiveRange *ranges;
|
||||||
|
static Matrix view;
|
||||||
|
|
||||||
|
Matrix_Copy(view, gIdentityMatrix);
|
||||||
|
Matrix_RotateX(view, 30.0 * M_PI / 180.0);
|
||||||
|
Matrix_RotateY(view, gFPS.frame * 0.01f);
|
||||||
|
Matrix_Translate(view, x, y, 15);
|
||||||
|
|
||||||
|
if (useShaders) {
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, MY_VSHADER_ID);
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, MY_PSHADER_ID);
|
||||||
|
|
||||||
|
SVGA3DUtil_SetShaderConstMatrix(CID, CONST_MAT_PROJ,
|
||||||
|
SVGA3D_SHADERTYPE_VS, perspectiveMat);
|
||||||
|
SVGA3DUtil_SetShaderConstMatrix(CID, CONST_MAT_VIEW,
|
||||||
|
SVGA3D_SHADERTYPE_VS, view);
|
||||||
|
} else {
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, SVGA3D_INVALID_ID);
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, SVGA3D_INVALID_ID);
|
||||||
|
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, gIdentityMatrix);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat);
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3D_BeginSetRenderState(CID, &rs, 4);
|
||||||
|
{
|
||||||
|
rs[0].state = SVGA3D_RS_BLENDENABLE;
|
||||||
|
rs[0].uintValue = FALSE;
|
||||||
|
|
||||||
|
rs[1].state = SVGA3D_RS_ZENABLE;
|
||||||
|
rs[1].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[2].state = SVGA3D_RS_ZWRITEENABLE;
|
||||||
|
rs[2].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[3].state = SVGA3D_RS_ZFUNC;
|
||||||
|
rs[3].uintValue = SVGA3D_CMP_LESS;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginSetTextureState(CID, &ts, 4);
|
||||||
|
{
|
||||||
|
ts[0].stage = 0;
|
||||||
|
ts[0].name = SVGA3D_TS_BIND_TEXTURE;
|
||||||
|
ts[0].value = SVGA3D_INVALID_ID;
|
||||||
|
|
||||||
|
ts[1].stage = 0;
|
||||||
|
ts[1].name = SVGA3D_TS_COLOROP;
|
||||||
|
ts[1].value = SVGA3D_TC_SELECTARG1;
|
||||||
|
|
||||||
|
ts[2].stage = 0;
|
||||||
|
ts[2].name = SVGA3D_TS_COLORARG1;
|
||||||
|
ts[2].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
|
||||||
|
ts[3].stage = 0;
|
||||||
|
ts[3].name = SVGA3D_TS_ALPHAARG1;
|
||||||
|
ts[3].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginDrawPrimitives(CID, &decls, 2, &ranges, 1);
|
||||||
|
{
|
||||||
|
decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION;
|
||||||
|
decls[0].array.surfaceId = vertexSid;
|
||||||
|
decls[0].array.stride = sizeof(MyVertex);
|
||||||
|
if (useHalf) {
|
||||||
|
decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT16_4;
|
||||||
|
decls[0].array.offset = offsetof(MyVertex, position16);
|
||||||
|
} else {
|
||||||
|
decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[0].array.offset = offsetof(MyVertex, position32);
|
||||||
|
}
|
||||||
|
|
||||||
|
decls[1].identity.type = SVGA3D_DECLTYPE_D3DCOLOR;
|
||||||
|
decls[1].identity.usage = SVGA3D_DECLUSAGE_COLOR;
|
||||||
|
decls[1].array.surfaceId = vertexSid;
|
||||||
|
decls[1].array.stride = sizeof(MyVertex);
|
||||||
|
decls[1].array.offset = offsetof(MyVertex, color);
|
||||||
|
|
||||||
|
ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST;
|
||||||
|
ranges[0].primitiveCount = numTriangles;
|
||||||
|
ranges[0].indexArray.surfaceId = indexSid;
|
||||||
|
ranges[0].indexArray.stride = sizeof(uint16);
|
||||||
|
ranges[0].indexWidth = sizeof(uint16);
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, SVGA3D_INVALID_ID);
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, SVGA3D_INVALID_ID);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Our example's entry point, invoked directly by the bootloader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 800, 600);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
|
||||||
|
vertexSid = SVGA3DUtil_DefineStaticBuffer(vertexData, sizeof vertexData);
|
||||||
|
indexSid = SVGA3DUtil_DefineStaticBuffer(indexData, sizeof indexData);
|
||||||
|
|
||||||
|
SVGA3D_DefineShader(CID, MY_VSHADER_ID, SVGA3D_SHADERTYPE_VS,
|
||||||
|
g_vs20_MyVertexShader, sizeof g_vs20_MyVertexShader);
|
||||||
|
SVGA3D_DefineShader(CID, MY_PSHADER_ID, SVGA3D_SHADERTYPE_PS,
|
||||||
|
g_ps20_MyPixelShader, sizeof g_ps20_MyPixelShader);
|
||||||
|
|
||||||
|
Matrix_Perspective(perspectiveMat, 45.0f,
|
||||||
|
gSVGA.width / (float)gSVGA.height, 10.0f, 100.0f);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
if (SVGA3DUtil_UpdateFPSCounter(&gFPS)) {
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("Half-precision floating point test.\n"
|
||||||
|
"You should see four identical cubes.\n"
|
||||||
|
"\n"
|
||||||
|
"Top row: Fixed function, Bottom row: Shaders.\n"
|
||||||
|
"Left column: 32-bit float, Right column: 16-bit float.\n"
|
||||||
|
"\n%s",
|
||||||
|
gFPS.text);
|
||||||
|
SVGA3DText_Update();
|
||||||
|
VMBackdoor_VGAScreenshot();
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH,
|
||||||
|
0x113366, 1.0f, 0);
|
||||||
|
|
||||||
|
renderCube(-2, 2, FALSE, FALSE); /* Top-left */
|
||||||
|
renderCube(2, 2, FALSE, TRUE); /* Top-right */
|
||||||
|
renderCube(-2, -2, TRUE, FALSE); /* Bottom-left */
|
||||||
|
renderCube(2, -2, TRUE, TRUE); /* Bottom-right */
|
||||||
|
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
8
examples/pong/Makefile
Normal file
8
examples/pong/Makefile
Normal file
|
|
@ -0,0 +1,8 @@
|
||||||
|
TARGET = pong.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
DEFS = -DREALLY_TINY
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
710
examples/pong/main.c
Normal file
710
examples/pong/main.c
Normal file
|
|
@ -0,0 +1,710 @@
|
||||||
|
/*
|
||||||
|
* PongOS v2.0
|
||||||
|
*
|
||||||
|
* Micah Dowty <micah@vmware.com>
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga.h"
|
||||||
|
#include "intr.h"
|
||||||
|
#include "io.h"
|
||||||
|
#include "timer.h"
|
||||||
|
#include "keyboard.h"
|
||||||
|
#include "vmbackdoor.h"
|
||||||
|
|
||||||
|
#define PONG_DOT_SIZE 8
|
||||||
|
#define PONG_DIGIT_PIXEL_SIZE 10
|
||||||
|
#define PONG_BG_COLOR 0x000000
|
||||||
|
#define PONG_SPRITE_COLOR 0xFFFFFF
|
||||||
|
#define PONG_PLAYFIELD_COLOR 0xAAAAAA
|
||||||
|
#define PONG_FRAME_RATE 60
|
||||||
|
|
||||||
|
#define MAX_DIRTY_RECTS 128
|
||||||
|
#define MAX_SPRITES 8
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
float x, y;
|
||||||
|
} Vector2;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
int x, y, w, h;
|
||||||
|
} Rect;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
Rect r;
|
||||||
|
uint32 color;
|
||||||
|
} FillRect;
|
||||||
|
|
||||||
|
static struct {
|
||||||
|
uint32 *buffer;
|
||||||
|
Rect dirtyRects[MAX_DIRTY_RECTS];
|
||||||
|
uint32 numDirtyRects;
|
||||||
|
} back;
|
||||||
|
|
||||||
|
static struct {
|
||||||
|
FillRect paddles[2];
|
||||||
|
FillRect ball;
|
||||||
|
uint8 scores[2];
|
||||||
|
|
||||||
|
float ballSpeed;
|
||||||
|
float paddleVelocities[2];
|
||||||
|
float paddlePos[2];
|
||||||
|
Vector2 ballVelocity;
|
||||||
|
Vector2 ballPos;
|
||||||
|
|
||||||
|
Bool playfieldDirty;
|
||||||
|
} pong;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* Random32 --
|
||||||
|
*
|
||||||
|
* "Random" number generator. To save code space, we actually just use
|
||||||
|
* the low bits of the TSC. This of course isn't actually random, but
|
||||||
|
* it's good enough for Pong.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static uint32
|
||||||
|
Random32(void)
|
||||||
|
{
|
||||||
|
uint64 t;
|
||||||
|
|
||||||
|
__asm__ __volatile__("rdtsc" : "=A" (t));
|
||||||
|
|
||||||
|
return (uint32)t;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* RectTestIntersection --
|
||||||
|
*
|
||||||
|
* Returns TRUE iff two Rects intersect with each other.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static Bool
|
||||||
|
RectTestIntersection(Rect *a, // IN
|
||||||
|
Rect *b) // IN
|
||||||
|
{
|
||||||
|
return !(a->x + a->w < b->x ||
|
||||||
|
a->x > b->x + b->w ||
|
||||||
|
a->y + a->h < b->y ||
|
||||||
|
a->y > b->y + b->h);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* BackFill --
|
||||||
|
*
|
||||||
|
* Perform a color fill on the backbuffer.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
BackFill(FillRect fr) // IN
|
||||||
|
{
|
||||||
|
int i, j;
|
||||||
|
|
||||||
|
for (i = 0; i < fr.r.h; i++) {
|
||||||
|
uint32 *line = &back.buffer[(fr.r.y + i) * gSVGA.width + fr.r.x];
|
||||||
|
|
||||||
|
for (j = 0; j < fr.r.w; j++) {
|
||||||
|
line[j] = fr.color;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* BackMarkDirty --
|
||||||
|
*
|
||||||
|
* Mark a region of the backbuffer as dirty. We'll copy it to the
|
||||||
|
* front buffer and ask the host to update it on the next
|
||||||
|
* BackUpdate().
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
BackMarkDirty(Rect rect) // IN
|
||||||
|
{
|
||||||
|
back.dirtyRects[back.numDirtyRects++] = rect;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* BackUpdate --
|
||||||
|
*
|
||||||
|
* Copy all dirty regions of the backbuffer to the frontbuffer, and
|
||||||
|
* send updates to the SVGA device. Clears the dirtyRects list.
|
||||||
|
*
|
||||||
|
* For flow control, this also waits for the host to process the
|
||||||
|
* batch of updates we just queued into the FIFO.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
BackUpdate() // IN
|
||||||
|
{
|
||||||
|
int rectNum;
|
||||||
|
|
||||||
|
for (rectNum = 0; rectNum < back.numDirtyRects; rectNum++) {
|
||||||
|
Rect rect = back.dirtyRects[rectNum];
|
||||||
|
uint32 i, j;
|
||||||
|
|
||||||
|
for (i = 0; i < rect.h; i++) {
|
||||||
|
uint32 offset = (rect.y + i) * gSVGA.width + rect.x;
|
||||||
|
uint32 *src = &back.buffer[offset];
|
||||||
|
uint32 *dest = &((uint32*) gSVGA.fbMem)[offset];
|
||||||
|
|
||||||
|
for (j = 0; j < rect.w; j++) {
|
||||||
|
dest[j] = src[j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA_Update(rect.x, rect.y, rect.w, rect.h);
|
||||||
|
}
|
||||||
|
|
||||||
|
back.numDirtyRects = 0;
|
||||||
|
SVGA_SyncToFence(SVGA_InsertFence());
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* PongDrawString --
|
||||||
|
*
|
||||||
|
* Draw a string of digits, using our silly blocky font. The
|
||||||
|
* string's origin is the top-middle.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
PongDrawString(uint32 x, // IN
|
||||||
|
uint32 y, // IN
|
||||||
|
const char *str, // IN
|
||||||
|
uint32 strLen) // IN
|
||||||
|
{
|
||||||
|
const int charW = 4;
|
||||||
|
const int charH = 5;
|
||||||
|
static const uint8 font[] = {
|
||||||
|
|
||||||
|
0xF1, // **** ...*
|
||||||
|
0x91, // *..* ...*
|
||||||
|
0x91, // *..* ...*
|
||||||
|
0x91, // *..* ...*
|
||||||
|
0xF1, // **** ...*
|
||||||
|
|
||||||
|
0xFF, // **** ****
|
||||||
|
0x11, // ...* ...*
|
||||||
|
0xFF, // **** ****
|
||||||
|
0x81, // *... ...*
|
||||||
|
0xFF, // **** ****
|
||||||
|
|
||||||
|
0x9F, // *..* ****
|
||||||
|
0x98, // *..* *...
|
||||||
|
0xFF, // **** ****
|
||||||
|
0x11, // ...* ...*
|
||||||
|
0x1F, // ...* ****
|
||||||
|
|
||||||
|
0xFF, // **** ****
|
||||||
|
0x81, // *... ...*
|
||||||
|
0xF1, // **** ...*
|
||||||
|
0x91, // *..* ...*
|
||||||
|
0xF1, // **** ...*
|
||||||
|
|
||||||
|
0xFF, // **** ****
|
||||||
|
0x99, // *..* *..*
|
||||||
|
0xFF, // **** ****
|
||||||
|
0x91, // *..* ...*
|
||||||
|
0xF1, // **** ...*
|
||||||
|
};
|
||||||
|
|
||||||
|
x -= (PONG_DIGIT_PIXEL_SIZE * (strLen * (charW + 1) - 1)) / 2;
|
||||||
|
|
||||||
|
while (*str) {
|
||||||
|
int digit = *str - '0';
|
||||||
|
if (digit >= 0 && digit <= 9) {
|
||||||
|
int i, j;
|
||||||
|
|
||||||
|
for (j = 0; j < charH; j++) {
|
||||||
|
for (i = 0; i < charW; i++) {
|
||||||
|
if ((font[digit / 2 * 5 + j] << i) & (digit & 1 ? 0x08 : 0x80)) {
|
||||||
|
FillRect pixel = {
|
||||||
|
{x + i * PONG_DIGIT_PIXEL_SIZE,
|
||||||
|
y + j * PONG_DIGIT_PIXEL_SIZE,
|
||||||
|
PONG_DIGIT_PIXEL_SIZE,
|
||||||
|
PONG_DIGIT_PIXEL_SIZE},
|
||||||
|
PONG_PLAYFIELD_COLOR,
|
||||||
|
};
|
||||||
|
BackFill(pixel);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
x += PONG_DIGIT_PIXEL_SIZE * (charW + 1);
|
||||||
|
str++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* DecDigit --
|
||||||
|
*
|
||||||
|
* Utility for extracting a decimal digit.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static char
|
||||||
|
DecDigit(int i, int div, Bool blank)
|
||||||
|
{
|
||||||
|
if (blank && i < div) {
|
||||||
|
return ' ';
|
||||||
|
}
|
||||||
|
return (i / div) % 10 + '0';
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* PongDrawPlayfield --
|
||||||
|
*
|
||||||
|
* Redraw the playfield for Pong.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
PongDrawPlayfield()
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Clear the screen
|
||||||
|
*/
|
||||||
|
FillRect background = {
|
||||||
|
{0, 0, gSVGA.width, gSVGA.height},
|
||||||
|
PONG_BG_COLOR,
|
||||||
|
};
|
||||||
|
BackFill(background);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Draw the dotted dividing line
|
||||||
|
*/
|
||||||
|
for (i = PONG_DOT_SIZE;
|
||||||
|
i <= gSVGA.height - PONG_DOT_SIZE * 2;
|
||||||
|
i += PONG_DOT_SIZE * 2) {
|
||||||
|
FillRect dot = {
|
||||||
|
{(gSVGA.width - PONG_DOT_SIZE) / 2, i,
|
||||||
|
PONG_DOT_SIZE, PONG_DOT_SIZE},
|
||||||
|
PONG_PLAYFIELD_COLOR,
|
||||||
|
};
|
||||||
|
BackFill(dot);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Draw the score counters.
|
||||||
|
*
|
||||||
|
* sprintf() is big, so we'll format this the old-fashioned way.
|
||||||
|
* Right-justify the left score, and left-justify the right score.
|
||||||
|
*/
|
||||||
|
{
|
||||||
|
char scoreStr[7] = " ";
|
||||||
|
char *p = scoreStr;
|
||||||
|
|
||||||
|
*(p++) = DecDigit(pong.scores[0], 100, TRUE);
|
||||||
|
*(p++) = DecDigit(pong.scores[0], 10, TRUE);
|
||||||
|
*(p++) = DecDigit(pong.scores[0], 1, FALSE);
|
||||||
|
p++;
|
||||||
|
if (pong.scores[1] >= 100) {
|
||||||
|
*(p++) = DecDigit(pong.scores[1], 100, TRUE);
|
||||||
|
}
|
||||||
|
if (pong.scores[1] >= 10) {
|
||||||
|
*(p++) = DecDigit(pong.scores[1], 10, TRUE);
|
||||||
|
}
|
||||||
|
*(p++) = DecDigit(pong.scores[1], 1, FALSE);
|
||||||
|
|
||||||
|
PongDrawString(gSVGA.width/2, PONG_DIGIT_PIXEL_SIZE,
|
||||||
|
scoreStr, sizeof scoreStr);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* PongDrawScreen --
|
||||||
|
*
|
||||||
|
* Top-level redraw function for Pong. This does a lot of unnecessary
|
||||||
|
* drawing to the backbuffer, but we're careful to only send update
|
||||||
|
* rectangles for a few things:
|
||||||
|
*
|
||||||
|
* - When the playfield changes, we update the entire screen.
|
||||||
|
* - Each sprite (the paddles and ball) gets two rectangles:
|
||||||
|
* - One for its new position
|
||||||
|
* - One for its old position
|
||||||
|
*
|
||||||
|
* None of these rectangles are ever merged.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
PongDrawScreen()
|
||||||
|
{
|
||||||
|
PongDrawPlayfield();
|
||||||
|
|
||||||
|
if (pong.playfieldDirty) {
|
||||||
|
Rect r = {0, 0, gSVGA.width, gSVGA.height};
|
||||||
|
BackMarkDirty(r);
|
||||||
|
pong.playfieldDirty = FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Draw all sprites at the current positions */
|
||||||
|
BackFill(pong.paddles[0]);
|
||||||
|
BackMarkDirty(pong.paddles[0].r);
|
||||||
|
BackFill(pong.paddles[1]);
|
||||||
|
BackMarkDirty(pong.paddles[1].r);
|
||||||
|
BackFill(pong.ball);
|
||||||
|
BackMarkDirty(pong.ball.r);
|
||||||
|
|
||||||
|
/* Commit this to the front buffer and the host's screen */
|
||||||
|
BackUpdate();
|
||||||
|
|
||||||
|
/* Make sure we erase all sprites at the current positions on the next frame */
|
||||||
|
BackMarkDirty(pong.paddles[0].r);
|
||||||
|
BackMarkDirty(pong.paddles[1].r);
|
||||||
|
BackMarkDirty(pong.ball.r);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* PongLaunchBall --
|
||||||
|
*
|
||||||
|
* Reset the ball position, and give it a random angle.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
PongLaunchBall()
|
||||||
|
{
|
||||||
|
/* sin() from 0 to PI/2 */
|
||||||
|
static const float sineTable[64] = {
|
||||||
|
0.000000, 0.024931, 0.049846, 0.074730, 0.099568, 0.124344, 0.149042, 0.173648,
|
||||||
|
0.198146, 0.222521, 0.246757, 0.270840, 0.294755, 0.318487, 0.342020, 0.365341,
|
||||||
|
0.388435, 0.411287, 0.433884, 0.456211, 0.478254, 0.500000, 0.521435, 0.542546,
|
||||||
|
0.563320, 0.583744, 0.603804, 0.623490, 0.642788, 0.661686, 0.680173, 0.698237,
|
||||||
|
0.715867, 0.733052, 0.749781, 0.766044, 0.781831, 0.797133, 0.811938, 0.826239,
|
||||||
|
0.840026, 0.853291, 0.866025, 0.878222, 0.889872, 0.900969, 0.911506, 0.921476,
|
||||||
|
0.930874, 0.939693, 0.947927, 0.955573, 0.962624, 0.969077, 0.974928, 0.980172,
|
||||||
|
0.984808, 0.988831, 0.992239, 0.995031, 0.997204, 0.998757, 0.999689, 1.000000,
|
||||||
|
};
|
||||||
|
int t;
|
||||||
|
float sinT, cosT;
|
||||||
|
|
||||||
|
pong.ballPos.x = gSVGA.width / 2;
|
||||||
|
pong.ballPos.y = gSVGA.height / 2;
|
||||||
|
|
||||||
|
/* Limit the random angle to avoid those within 45 degrees of vertical */
|
||||||
|
t = 32 + (Random32() & 31);
|
||||||
|
|
||||||
|
sinT = sineTable[t];
|
||||||
|
cosT = -sineTable[(t + 32) & 63];
|
||||||
|
|
||||||
|
sinT *= pong.ballSpeed;
|
||||||
|
cosT *= pong.ballSpeed;
|
||||||
|
|
||||||
|
switch (Random32() & 3) {
|
||||||
|
case 0:
|
||||||
|
pong.ballVelocity.x = sinT;
|
||||||
|
pong.ballVelocity.y = cosT;
|
||||||
|
break;
|
||||||
|
case 1:
|
||||||
|
pong.ballVelocity.x = -sinT;
|
||||||
|
pong.ballVelocity.y = cosT;
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
pong.ballVelocity.x = -sinT;
|
||||||
|
pong.ballVelocity.y = -cosT;
|
||||||
|
break;
|
||||||
|
case 3:
|
||||||
|
pong.ballVelocity.x = sinT;
|
||||||
|
pong.ballVelocity.y = -cosT;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* PongInit --
|
||||||
|
*
|
||||||
|
* Initialize all game variables, including sprite location/size/color.
|
||||||
|
* Requires that SVGA has already been initialized.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
PongInit()
|
||||||
|
{
|
||||||
|
pong.scores[0] = 0;
|
||||||
|
pong.scores[1] = 0;
|
||||||
|
pong.playfieldDirty = TRUE;
|
||||||
|
|
||||||
|
pong.paddlePos[0] = pong.paddlePos[1] = gSVGA.height / 2;
|
||||||
|
|
||||||
|
pong.paddles[0].r.x = 10;
|
||||||
|
pong.paddles[0].r.w = 16;
|
||||||
|
pong.paddles[0].r.h = 64;
|
||||||
|
pong.paddles[0].color = PONG_SPRITE_COLOR;
|
||||||
|
|
||||||
|
pong.paddles[1].r.x = gSVGA.width - 16 - 10;
|
||||||
|
pong.paddles[1].r.w = 16;
|
||||||
|
pong.paddles[1].r.h = 64;
|
||||||
|
pong.paddles[1].color = PONG_SPRITE_COLOR;
|
||||||
|
|
||||||
|
pong.ball.r.w = 16;
|
||||||
|
pong.ball.r.h = 16;
|
||||||
|
pong.ball.color = PONG_SPRITE_COLOR;
|
||||||
|
|
||||||
|
pong.ballSpeed = 400;
|
||||||
|
PongLaunchBall();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* PongUpdateMotion --
|
||||||
|
*
|
||||||
|
* Perform motion updates for the ball and paddles. This includes
|
||||||
|
* bounce/goal detection.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
PongUpdateMotion(float dt) // IN
|
||||||
|
{
|
||||||
|
int playableWidth = gSVGA.width - pong.ball.r.w;
|
||||||
|
int playableHeight = gSVGA.height - pong.ball.r.h;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
pong.ballPos.x += pong.ballVelocity.x * dt;
|
||||||
|
pong.ballPos.y += pong.ballVelocity.y * dt;
|
||||||
|
|
||||||
|
for (i = 0; i < 2; i++) {
|
||||||
|
int pos = pong.paddlePos[i] + pong.paddleVelocities[i] * dt;
|
||||||
|
pong.paddlePos[i] = MIN(gSVGA.height - pong.paddles[i].r.h, MAX(0, pos));
|
||||||
|
pong.paddles[i].r.y = (int)pong.paddlePos[i];
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pong.ballPos.x >= playableWidth) {
|
||||||
|
/* Goal off the right edge */
|
||||||
|
pong.scores[0]++;
|
||||||
|
pong.playfieldDirty = TRUE;
|
||||||
|
PongLaunchBall();
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pong.ballPos.x <= 0) {
|
||||||
|
/* Goal off the left edge */
|
||||||
|
pong.scores[1]++;
|
||||||
|
pong.playfieldDirty = TRUE;
|
||||||
|
PongLaunchBall();
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pong.ballPos.y >= playableHeight) {
|
||||||
|
/* Bounce off the bottom edge */
|
||||||
|
pong.ballVelocity.y = -pong.ballVelocity.y;
|
||||||
|
pong.ballPos.y = playableHeight - (pong.ballPos.y - playableHeight);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pong.ballPos.y <= 0) {
|
||||||
|
/* Bounce off the top edge */
|
||||||
|
pong.ballVelocity.y = -pong.ballVelocity.y;
|
||||||
|
pong.ballPos.y = -pong.ballPos.y;
|
||||||
|
}
|
||||||
|
|
||||||
|
pong.ballPos.y = MIN(playableHeight, pong.ballPos.y);
|
||||||
|
pong.ballPos.y = MAX(0, pong.ballPos.y);
|
||||||
|
|
||||||
|
pong.ball.r.x = (int)pong.ballPos.x;
|
||||||
|
pong.ball.r.y = (int)pong.ballPos.y;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Lame collision detection between ball and paddles. Really we
|
||||||
|
* should be testing the ball's entire path over this time step,
|
||||||
|
* not just the ball's new position. Using the current
|
||||||
|
* implementation, it's possible for the ball to move through a
|
||||||
|
* paddle if it's going fast enough or our frame rate is slow
|
||||||
|
* enough.
|
||||||
|
*/
|
||||||
|
for (i = 0; i < 2; i++) {
|
||||||
|
/*
|
||||||
|
* Only bounce off the paddle when we're moving toward it, to
|
||||||
|
* prevent the ball from getting stuck inside the paddle
|
||||||
|
*/
|
||||||
|
if ((pong.paddles[i].r.x > gSVGA.width / 2) == (pong.ballVelocity.x > 0) &&
|
||||||
|
RectTestIntersection(&pong.ball.r, &pong.paddles[i].r)) {
|
||||||
|
/*
|
||||||
|
* Boing! The ball bounces back, plus it gets a little spin
|
||||||
|
* if the paddle itself was moving at the time.
|
||||||
|
*/
|
||||||
|
pong.ballVelocity.x = -pong.ballVelocity.x;
|
||||||
|
pong.ballVelocity.y += pong.paddleVelocities[i];
|
||||||
|
pong.ballVelocity.y = MIN(pong.ballVelocity.y, pong.ballSpeed * 2);
|
||||||
|
pong.ballVelocity.y = MAX(pong.ballVelocity.y, -pong.ballSpeed * 2);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* PongKeyboardPlayer --
|
||||||
|
*
|
||||||
|
* A human player, using the up and down arrows on a keyboard.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
PongKeyboardPlayer(int playerNum, // IN
|
||||||
|
float maxSpeed, // IN
|
||||||
|
float accel) // IN
|
||||||
|
{
|
||||||
|
float v = pong.paddleVelocities[playerNum];
|
||||||
|
Bool up = Keyboard_IsKeyPressed(KEY_UP);
|
||||||
|
Bool down = Keyboard_IsKeyPressed(KEY_DOWN);
|
||||||
|
|
||||||
|
if (up && !down) {
|
||||||
|
v -= accel;
|
||||||
|
} else if (down && !up) {
|
||||||
|
v += accel;
|
||||||
|
} else {
|
||||||
|
v = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
v = MIN(maxSpeed, MAX(-maxSpeed, v));
|
||||||
|
pong.paddleVelocities[playerNum] = v;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* PongAbsMousePlayer --
|
||||||
|
*
|
||||||
|
* A human player, controlled with the Y axis of the absolute mouse.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
PongAbsMousePlayer(int playerNum) // IN
|
||||||
|
{
|
||||||
|
int currentY = pong.paddles[playerNum].r.y;
|
||||||
|
int newY = currentY;
|
||||||
|
VMMousePacket p;
|
||||||
|
Bool mouseMoved = FALSE;
|
||||||
|
|
||||||
|
while (VMBackdoor_MouseGetPacket(&p)) {
|
||||||
|
newY = (p.y * gSVGA.height / 0xFFFF) - pong.paddles[playerNum].r.h / 2;
|
||||||
|
newY = MAX(0, newY);
|
||||||
|
newY = MIN(gSVGA.height - pong.paddles[playerNum].r.h, newY);
|
||||||
|
mouseMoved = TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (newY != currentY && mouseMoved) {
|
||||||
|
pong.paddleVelocities[playerNum] = (newY - currentY) * (float)PONG_FRAME_RATE;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* PongComputerPlayer --
|
||||||
|
*
|
||||||
|
* Simple computer player. Always moves its paddle toward the ball.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
PongComputerPlayer(int playerNum, // IN
|
||||||
|
float maxSpeed) // IN
|
||||||
|
{
|
||||||
|
int paddleCenter = pong.paddles[playerNum].r.y + pong.paddles[playerNum].r.h / 2;
|
||||||
|
int ballCenter = pong.ball.r.y + pong.ball.r.h / 2;
|
||||||
|
int distance = ballCenter - paddleCenter;
|
||||||
|
|
||||||
|
pong.paddleVelocities[playerNum] = distance / (float)gSVGA.height * maxSpeed;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Initialization and main loop.
|
||||||
|
*
|
||||||
|
*-----------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
Intr_Init();
|
||||||
|
SVGA_Init();
|
||||||
|
SVGA_SetMode(800, 600, 32);
|
||||||
|
back.buffer = (uint32*) (gSVGA.fbMem + gSVGA.width * gSVGA.height * sizeof(uint32));
|
||||||
|
|
||||||
|
Keyboard_Init();
|
||||||
|
VMBackdoor_MouseInit(TRUE);
|
||||||
|
PongInit();
|
||||||
|
|
||||||
|
Timer_InitPIT(PIT_HZ / PONG_FRAME_RATE);
|
||||||
|
Intr_SetMask(0, TRUE);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
PongKeyboardPlayer(0, 1000, 50);
|
||||||
|
PongAbsMousePlayer(0);
|
||||||
|
PongComputerPlayer(1, 2000);
|
||||||
|
|
||||||
|
PongUpdateMotion(1.0 / PONG_FRAME_RATE);
|
||||||
|
PongDrawScreen();
|
||||||
|
|
||||||
|
Intr_Halt();
|
||||||
|
}
|
||||||
|
}
|
||||||
6
examples/present-readback/Makefile
Normal file
6
examples/present-readback/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = presentReadback.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
233
examples/present-readback/main.c
Normal file
233
examples/present-readback/main.c
Normal file
|
|
@ -0,0 +1,233 @@
|
||||||
|
/*
|
||||||
|
* SVGA3D example: Present Reaback example. This example tests the 3d
|
||||||
|
* and 2d syncronization presentReadback command. This example draws
|
||||||
|
* a spinning cube using 3d. After every frame parts of the 2d
|
||||||
|
* framebuffer are updated with present readback with a 2d update
|
||||||
|
* following. Parts of the 3d region are cleared before the present
|
||||||
|
* readback command testing that the last presented 3d data is what is
|
||||||
|
* copied to the 2d framebuffer. This cube should spin with no
|
||||||
|
* flicker.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
#include "matrix.h"
|
||||||
|
#include "math.h"
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
float position[3];
|
||||||
|
uint32 color;
|
||||||
|
} MyVertex;
|
||||||
|
|
||||||
|
static const MyVertex vertexData[] = {
|
||||||
|
{ {-1, -1, -1}, 0xFFFFFF },
|
||||||
|
{ {-1, -1, 1}, 0xFFFF00 },
|
||||||
|
{ {-1, 1, -1}, 0xFF00FF },
|
||||||
|
{ {-1, 1, 1}, 0xFF0000 },
|
||||||
|
{ { 1, -1, -1}, 0x00FFFF },
|
||||||
|
{ { 1, -1, 1}, 0x00FF00 },
|
||||||
|
{ { 1, 1, -1}, 0x0000FF },
|
||||||
|
{ { 1, 1, 1}, 0x000000 },
|
||||||
|
};
|
||||||
|
|
||||||
|
#define QUAD(a,b,c,d) a, b, d, d, c, a
|
||||||
|
|
||||||
|
static const uint16 indexData[] = {
|
||||||
|
QUAD(0,1,2,3), // -X
|
||||||
|
QUAD(4,5,6,7), // +X
|
||||||
|
QUAD(0,1,4,5), // -Y
|
||||||
|
QUAD(2,3,6,7), // +Y
|
||||||
|
QUAD(0,2,4,6), // -Z
|
||||||
|
QUAD(1,3,5,7), // +Z
|
||||||
|
};
|
||||||
|
|
||||||
|
#undef QUAD
|
||||||
|
|
||||||
|
const uint32 numTriangles = sizeof indexData / sizeof indexData[0] / 3;
|
||||||
|
uint32 vertexSid, indexSid;
|
||||||
|
Matrix perspectiveMat;
|
||||||
|
FPSCounterState gFPS;
|
||||||
|
VMMousePacket lastMouseState;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* render --
|
||||||
|
*
|
||||||
|
* Set up render state, and draw our cube scene from static index
|
||||||
|
* and vertex buffers.
|
||||||
|
*
|
||||||
|
* This render state only needs to be set each frame because
|
||||||
|
* SVGA3DText_Draw() changes it.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
render(void)
|
||||||
|
{
|
||||||
|
SVGA3dTextureState *ts;
|
||||||
|
SVGA3dRenderState *rs;
|
||||||
|
SVGA3dVertexDecl *decls;
|
||||||
|
SVGA3dPrimitiveRange *ranges;
|
||||||
|
static Matrix view;
|
||||||
|
|
||||||
|
Matrix_Copy(view, gIdentityMatrix);
|
||||||
|
Matrix_Scale(view, 0.5, 0.5, 0.5, 1.0);
|
||||||
|
|
||||||
|
if (lastMouseState.buttons & VMMOUSE_LEFT_BUTTON) {
|
||||||
|
Matrix_RotateX(view, lastMouseState.y * 0.0001);
|
||||||
|
Matrix_RotateY(view, lastMouseState.x * -0.0001);
|
||||||
|
} else {
|
||||||
|
Matrix_RotateX(view, 30.0 * M_PI / 180.0);
|
||||||
|
Matrix_RotateY(view, gFPS.frame * 0.01f);
|
||||||
|
}
|
||||||
|
|
||||||
|
Matrix_Translate(view, 0, 0, 3);
|
||||||
|
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, gIdentityMatrix);
|
||||||
|
SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat);
|
||||||
|
|
||||||
|
SVGA3D_BeginSetRenderState(CID, &rs, 4);
|
||||||
|
{
|
||||||
|
rs[0].state = SVGA3D_RS_BLENDENABLE;
|
||||||
|
rs[0].uintValue = FALSE;
|
||||||
|
|
||||||
|
rs[1].state = SVGA3D_RS_ZENABLE;
|
||||||
|
rs[1].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[2].state = SVGA3D_RS_ZWRITEENABLE;
|
||||||
|
rs[2].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[3].state = SVGA3D_RS_ZFUNC;
|
||||||
|
rs[3].uintValue = SVGA3D_CMP_LESS;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginSetTextureState(CID, &ts, 4);
|
||||||
|
{
|
||||||
|
ts[0].stage = 0;
|
||||||
|
ts[0].name = SVGA3D_TS_BIND_TEXTURE;
|
||||||
|
ts[0].value = SVGA3D_INVALID_ID;
|
||||||
|
|
||||||
|
ts[1].stage = 0;
|
||||||
|
ts[1].name = SVGA3D_TS_COLOROP;
|
||||||
|
ts[1].value = SVGA3D_TC_SELECTARG1;
|
||||||
|
|
||||||
|
ts[2].stage = 0;
|
||||||
|
ts[2].name = SVGA3D_TS_COLORARG1;
|
||||||
|
ts[2].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
|
||||||
|
ts[3].stage = 0;
|
||||||
|
ts[3].name = SVGA3D_TS_ALPHAARG1;
|
||||||
|
ts[3].value = SVGA3D_TA_DIFFUSE;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_BeginDrawPrimitives(CID, &decls, 2, &ranges, 1);
|
||||||
|
{
|
||||||
|
decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION;
|
||||||
|
decls[0].array.surfaceId = vertexSid;
|
||||||
|
decls[0].array.stride = sizeof(MyVertex);
|
||||||
|
decls[0].array.offset = offsetof(MyVertex, position);
|
||||||
|
|
||||||
|
decls[1].identity.type = SVGA3D_DECLTYPE_D3DCOLOR;
|
||||||
|
decls[1].identity.usage = SVGA3D_DECLUSAGE_COLOR;
|
||||||
|
decls[1].array.surfaceId = vertexSid;
|
||||||
|
decls[1].array.stride = sizeof(MyVertex);
|
||||||
|
decls[1].array.offset = offsetof(MyVertex, color);
|
||||||
|
|
||||||
|
ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST;
|
||||||
|
ranges[0].primitiveCount = numTriangles;
|
||||||
|
ranges[0].indexArray.surfaceId = indexSid;
|
||||||
|
ranges[0].indexArray.stride = sizeof(uint16);
|
||||||
|
ranges[0].indexWidth = sizeof(uint16);
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Our example's entry point, invoked directly by the bootloader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
SVGAGuestPtr ptr;
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 800, 600);
|
||||||
|
SVGA3DUtil_AllocDMABuffer(gSVGA.width * gSVGA.height * 4, &ptr);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
|
||||||
|
vertexSid = SVGA3DUtil_DefineStaticBuffer(vertexData, sizeof vertexData);
|
||||||
|
indexSid = SVGA3DUtil_DefineStaticBuffer(indexData, sizeof indexData);
|
||||||
|
|
||||||
|
Matrix_Perspective(perspectiveMat, 45.0f,
|
||||||
|
gSVGA.width / (float)gSVGA.height, 0.1f, 100.0f);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
SVGA3dRect *rects;
|
||||||
|
int halfWidth = gSVGA.width / 2;
|
||||||
|
int halfHeight = gSVGA.height / 2;
|
||||||
|
|
||||||
|
if (SVGA3DUtil_UpdateFPSCounter(&gFPS)) {
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("VMware SVGA3D Example:\n"
|
||||||
|
"Present Readback:\n"
|
||||||
|
" - upper left quadrant:\n"
|
||||||
|
" present\n"
|
||||||
|
" - lower right quadrant:\n"
|
||||||
|
" present -> presentReadback -> update\n"
|
||||||
|
" - upper right and lower left quadrants:\n"
|
||||||
|
" present -> clear -> presentReadback -> update\n"
|
||||||
|
"\n"
|
||||||
|
"The cube should appear to be smothly spinning \n"
|
||||||
|
"with all quadrants of the screen in sync.\n\n%s",
|
||||||
|
gFPS.text);
|
||||||
|
SVGA3DText_Update();
|
||||||
|
VMBackdoor_VGAScreenshot();
|
||||||
|
}
|
||||||
|
|
||||||
|
while (VMBackdoor_MouseGetPacket(&lastMouseState));
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH,
|
||||||
|
0x113366, 1.0f, 0);
|
||||||
|
render();
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
|
||||||
|
SVGA3D_BeginPresentReadback(&rects, 1);
|
||||||
|
rects[0].x = halfWidth;
|
||||||
|
rects[0].y = halfHeight;
|
||||||
|
rects[0].w = halfWidth;
|
||||||
|
rects[0].h = halfHeight;
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
SVGA_SyncToFence(SVGA_InsertFence());
|
||||||
|
|
||||||
|
SVGA_Update(halfWidth,halfHeight,halfWidth,halfHeight);
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH,
|
||||||
|
0xff00ff, 1.0f, 0);
|
||||||
|
|
||||||
|
SVGA3D_BeginPresentReadback(&rects, 2);
|
||||||
|
rects[0].x = halfWidth;
|
||||||
|
rects[0].y = 0;
|
||||||
|
rects[0].w = halfWidth;
|
||||||
|
rects[0].h = halfHeight;
|
||||||
|
rects[1].x = 0;
|
||||||
|
rects[1].y = halfHeight;
|
||||||
|
rects[1].w = halfWidth;
|
||||||
|
rects[1].h = halfHeight;
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
SVGA_SyncToFence(SVGA_InsertFence());
|
||||||
|
|
||||||
|
SVGA_Update(halfWidth, 0, halfWidth, halfHeight);
|
||||||
|
SVGA_Update(0, halfHeight, halfWidth, halfHeight);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
6
examples/simple-blit/Makefile
Normal file
6
examples/simple-blit/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = simple_blit.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
104
examples/simple-blit/main.c
Normal file
104
examples/simple-blit/main.c
Normal file
|
|
@ -0,0 +1,104 @@
|
||||||
|
/*
|
||||||
|
* SVGA3D example: Simple BLIT (Block Image Transfer) which updates
|
||||||
|
* the render target surface ID.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "types.h"
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
|
||||||
|
FPSCounterState gFPS;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Alpha, red, green, blue components of color.
|
||||||
|
*/
|
||||||
|
static uint32 a = 255, r = 0, g = 0, b = 0;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* DMA pools allow for the allocation of GMR memory.
|
||||||
|
* The re-use policy is handled by the allocation routines.
|
||||||
|
*/
|
||||||
|
static uint32 blitSize = 0;
|
||||||
|
DMAPool blitDMA;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* render --
|
||||||
|
*
|
||||||
|
* Set up render state, and use surface DMA to update the
|
||||||
|
* render target with a solid color that goes from black
|
||||||
|
* to white.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
render(void)
|
||||||
|
{
|
||||||
|
DMAPoolBuffer *dma = NULL;
|
||||||
|
uint32 *buffer = NULL;
|
||||||
|
uint32 color;
|
||||||
|
|
||||||
|
dma = SVGA3DUtil_DMAPoolGetBuffer(&blitDMA);
|
||||||
|
buffer = (uint32 *)dma->buffer;
|
||||||
|
|
||||||
|
/* uint32 memset. */
|
||||||
|
color = ((a&255) << 24) | ((r&255) << 16) | ((b&255) << 8) | (g&255);
|
||||||
|
memset32(buffer, color, blitSize / sizeof *buffer);
|
||||||
|
r++; g++; b++;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copy pixel data from our temporary memory in the GMR into
|
||||||
|
* the render target. This is a BLIT operation from memory
|
||||||
|
* in the guest to the host render target.
|
||||||
|
*/
|
||||||
|
SVGA3DUtil_SurfaceDMA2D(gFullscreen.colorImage.sid, &dma->ptr,
|
||||||
|
SVGA3D_WRITE_HOST_VRAM,
|
||||||
|
gSVGA.width, gSVGA.height);
|
||||||
|
SVGA3DUtil_AsyncCall((AsyncCallFn) SVGA3DUtil_DMAPoolFreeBuffer, dma);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Our example's entry point, invoked directly by the bootloader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 800, 600);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Allocate 2 buffers for DMA. Each buffer is the size of the display
|
||||||
|
* so that we can fill the buffers with color data and DMA that buffer
|
||||||
|
* to the render target.
|
||||||
|
*/
|
||||||
|
blitSize = gSVGA.width * gSVGA.height * sizeof(uint32);
|
||||||
|
SVGA3DUtil_AllocDMAPool(&blitDMA, blitSize, 4);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
if (SVGA3DUtil_UpdateFPSCounter(&gFPS)) {
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("VMware SVGA3D Example:\n"
|
||||||
|
"Simple BLIT of image into render target.\n%s",
|
||||||
|
gFPS.text);
|
||||||
|
SVGA3DText_Update();
|
||||||
|
VMBackdoor_VGAScreenshot();
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR, 0x113366, 1.0f, 0);
|
||||||
|
|
||||||
|
render();
|
||||||
|
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
16
examples/simple-shaders/Makefile
Normal file
16
examples/simple-shaders/Makefile
Normal file
|
|
@ -0,0 +1,16 @@
|
||||||
|
TARGET = simple-shaders.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
|
|
||||||
|
.PHONY: shaders
|
||||||
|
|
||||||
|
shaders: simple_vs.h simple_ps.h
|
||||||
|
|
||||||
|
simple_vs.h: simple.fx
|
||||||
|
wine fxc.exe /T vs_2_0 /E MyVertexShader /Fh simple_vs.h simple.fx
|
||||||
|
|
||||||
|
simple_ps.h: simple.fx
|
||||||
|
wine fxc.exe /T ps_2_0 /E MyPixelShader /Fh simple_ps.h simple.fx
|
||||||
249
examples/simple-shaders/main.c
Normal file
249
examples/simple-shaders/main.c
Normal file
|
|
@ -0,0 +1,249 @@
|
||||||
|
/*
|
||||||
|
* SVGA3D example: Simple Shaders.
|
||||||
|
*
|
||||||
|
* This is a simple example to demonstrate the programmable pixel
|
||||||
|
* and vertex pipelines. A vertex shader animates a rippling surface,
|
||||||
|
* and a pixel shader generates a procedural checkerboard pattern.
|
||||||
|
*
|
||||||
|
* For simplicity, this example generates shader bytecode at
|
||||||
|
* compile-time using the Microsoft HLSL compiler.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "svga3dutil.h"
|
||||||
|
#include "svga3dtext.h"
|
||||||
|
#include "matrix.h"
|
||||||
|
#include "math.h"
|
||||||
|
|
||||||
|
typedef uint32 DWORD;
|
||||||
|
#include "simple_vs.h"
|
||||||
|
#include "simple_ps.h"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Small integers to identify our shaders.
|
||||||
|
*/
|
||||||
|
#define MY_VSHADER_ID 0
|
||||||
|
#define MY_PSHADER_ID 0
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Shader constants. These must match the constant registers in the
|
||||||
|
* bytecode we send the device, so in this example the constants are
|
||||||
|
* actually assigned by the Microsoft HLSL compiler.
|
||||||
|
*/
|
||||||
|
#define CONST_MAT_WORLDVIEWPROJ 0
|
||||||
|
#define CONST_TIMESTEP 4
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Macros for the simple mesh we generate as input for the vertex
|
||||||
|
* shader. It's a static grid in the XY plane.
|
||||||
|
*/
|
||||||
|
#define MESH_WIDTH 256
|
||||||
|
#define MESH_HEIGHT 256
|
||||||
|
#define MESH_NUM_VERTICES (MESH_WIDTH * MESH_HEIGHT)
|
||||||
|
#define MESH_NUM_QUADS ((MESH_WIDTH-1) * (MESH_HEIGHT-1))
|
||||||
|
#define MESH_NUM_TRIANGLES (MESH_NUM_QUADS * 2)
|
||||||
|
#define MESH_NUM_INDICES (MESH_NUM_TRIANGLES * 3)
|
||||||
|
#define MESH_ELEMENT(x, y) (MESH_WIDTH * (y) + (x))
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
float position[3];
|
||||||
|
} MyVertex;
|
||||||
|
|
||||||
|
typedef uint16 IndexType;
|
||||||
|
uint32 vertexSid, indexSid;
|
||||||
|
FPSCounterState gFPS;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* render --
|
||||||
|
*
|
||||||
|
* Set up render state that we load once per frame (because
|
||||||
|
* SVGA3DText clobbered it) and render the scene.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
render(void)
|
||||||
|
{
|
||||||
|
SVGA3dVertexDecl *decls;
|
||||||
|
SVGA3dPrimitiveRange *ranges;
|
||||||
|
SVGA3dRenderState *rs;
|
||||||
|
|
||||||
|
float shaderTimestep[4] = { gFPS.frame * 0.01 };
|
||||||
|
|
||||||
|
SVGA3D_SetShaderConst(CID, CONST_TIMESTEP, SVGA3D_SHADERTYPE_VS,
|
||||||
|
SVGA3D_CONST_TYPE_FLOAT, shaderTimestep);
|
||||||
|
|
||||||
|
SVGA3D_BeginSetRenderState(CID, &rs, 4);
|
||||||
|
{
|
||||||
|
rs[0].state = SVGA3D_RS_BLENDENABLE;
|
||||||
|
rs[0].uintValue = FALSE;
|
||||||
|
|
||||||
|
rs[1].state = SVGA3D_RS_ZENABLE;
|
||||||
|
rs[1].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[2].state = SVGA3D_RS_ZWRITEENABLE;
|
||||||
|
rs[2].uintValue = TRUE;
|
||||||
|
|
||||||
|
rs[3].state = SVGA3D_RS_ZFUNC;
|
||||||
|
rs[3].uintValue = SVGA3D_CMP_LESS;
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, MY_VSHADER_ID);
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, MY_PSHADER_ID);
|
||||||
|
|
||||||
|
SVGA3D_BeginDrawPrimitives(CID, &decls, 1, &ranges, 1);
|
||||||
|
{
|
||||||
|
decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3;
|
||||||
|
decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION;
|
||||||
|
decls[0].array.surfaceId = vertexSid;
|
||||||
|
decls[0].array.stride = sizeof(MyVertex);
|
||||||
|
decls[0].array.offset = offsetof(MyVertex, position);
|
||||||
|
|
||||||
|
ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST;
|
||||||
|
ranges[0].primitiveCount = MESH_NUM_TRIANGLES;
|
||||||
|
ranges[0].indexArray.surfaceId = indexSid;
|
||||||
|
ranges[0].indexArray.stride = sizeof(IndexType);
|
||||||
|
ranges[0].indexWidth = sizeof(IndexType);
|
||||||
|
}
|
||||||
|
SVGA_FIFOCommitAll();
|
||||||
|
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, SVGA3D_INVALID_ID);
|
||||||
|
SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, SVGA3D_INVALID_ID);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* createIndexBuffer --
|
||||||
|
*
|
||||||
|
* Create a static index buffer that renders our vertices as a 2D
|
||||||
|
* mesh. For simplicity, we use a triangle list rather than a
|
||||||
|
* triangle strip.
|
||||||
|
*/
|
||||||
|
|
||||||
|
uint32
|
||||||
|
createIndexBuffer(void)
|
||||||
|
{
|
||||||
|
IndexType *indexBuffer;
|
||||||
|
const uint32 bufferSize = MESH_NUM_INDICES * sizeof *indexBuffer;
|
||||||
|
SVGAGuestPtr gPtr;
|
||||||
|
uint32 sid;
|
||||||
|
int x, y;
|
||||||
|
|
||||||
|
sid = SVGA3DUtil_DefineSurface2D(bufferSize, 1, SVGA3D_BUFFER);
|
||||||
|
indexBuffer = SVGA3DUtil_AllocDMABuffer(bufferSize, &gPtr);
|
||||||
|
|
||||||
|
for (y = 0; y < (MESH_HEIGHT - 1); y++) {
|
||||||
|
for (x = 0; x < (MESH_WIDTH - 1); x++) {
|
||||||
|
|
||||||
|
indexBuffer[0] = MESH_ELEMENT(x, y );
|
||||||
|
indexBuffer[1] = MESH_ELEMENT(x+1, y );
|
||||||
|
indexBuffer[2] = MESH_ELEMENT(x+1, y+1);
|
||||||
|
|
||||||
|
indexBuffer[3] = MESH_ELEMENT(x+1, y+1);
|
||||||
|
indexBuffer[4] = MESH_ELEMENT(x, y+1);
|
||||||
|
indexBuffer[5] = MESH_ELEMENT(x, y );
|
||||||
|
|
||||||
|
indexBuffer += 6;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_SurfaceDMA2D(sid, &gPtr, SVGA3D_WRITE_HOST_VRAM, bufferSize, 1);
|
||||||
|
|
||||||
|
return sid;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* createVertexBuffer --
|
||||||
|
*
|
||||||
|
* Create a static vertex buffer that renders a mesh on thee XY
|
||||||
|
* plane. For simplicity, we use a triangle list rather than a
|
||||||
|
* triangle strip.
|
||||||
|
*/
|
||||||
|
|
||||||
|
uint32
|
||||||
|
createVertexBuffer(void)
|
||||||
|
{
|
||||||
|
MyVertex *vert;
|
||||||
|
const uint32 bufferSize = MESH_NUM_VERTICES * sizeof(MyVertex);
|
||||||
|
SVGAGuestPtr gPtr;
|
||||||
|
uint32 sid;
|
||||||
|
int x, y;
|
||||||
|
|
||||||
|
sid = SVGA3DUtil_DefineSurface2D(bufferSize, 1, SVGA3D_BUFFER);
|
||||||
|
vert = SVGA3DUtil_AllocDMABuffer(bufferSize, &gPtr);
|
||||||
|
|
||||||
|
for (y = 0; y < MESH_HEIGHT; y++) {
|
||||||
|
for (x = 0; x < MESH_WIDTH; x++) {
|
||||||
|
|
||||||
|
vert->position[0] = x * (2.0 / MESH_WIDTH) - 1.0;
|
||||||
|
vert->position[1] = y * (2.0 / MESH_HEIGHT) - 1.0;
|
||||||
|
vert->position[2] = 0.0f;
|
||||||
|
|
||||||
|
vert++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_SurfaceDMA2D(sid, &gPtr, SVGA3D_WRITE_HOST_VRAM, bufferSize, 1);
|
||||||
|
|
||||||
|
return sid;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Our example's entry point, invoked directly by the bootloader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
Matrix worldViewProj, proj;
|
||||||
|
|
||||||
|
SVGA3DUtil_InitFullscreen(CID, 800, 600);
|
||||||
|
SVGA3DText_Init();
|
||||||
|
|
||||||
|
vertexSid = createVertexBuffer();
|
||||||
|
indexSid = createIndexBuffer();
|
||||||
|
|
||||||
|
SVGA3D_DefineShader(CID, MY_VSHADER_ID, SVGA3D_SHADERTYPE_VS,
|
||||||
|
g_vs20_MyVertexShader, sizeof g_vs20_MyVertexShader);
|
||||||
|
SVGA3D_DefineShader(CID, MY_PSHADER_ID, SVGA3D_SHADERTYPE_PS,
|
||||||
|
g_ps20_MyPixelShader, sizeof g_ps20_MyPixelShader);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Compute a single matrix for the world, view, and projection
|
||||||
|
* transforms, then upload that to the shader.
|
||||||
|
*/
|
||||||
|
|
||||||
|
Matrix_Copy(worldViewProj, gIdentityMatrix);
|
||||||
|
Matrix_RotateX(worldViewProj, 60.0 * PI_OVER_180);
|
||||||
|
Matrix_Translate(worldViewProj, 0, 0, 3);
|
||||||
|
Matrix_Perspective(proj, 45.0f, gSVGA.width / (float)gSVGA.height, 0.1f, 100.0f);
|
||||||
|
Matrix_Multiply(worldViewProj, proj);
|
||||||
|
|
||||||
|
SVGA3DUtil_SetShaderConstMatrix(CID, CONST_MAT_WORLDVIEWPROJ,
|
||||||
|
SVGA3D_SHADERTYPE_VS, worldViewProj);
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
if (SVGA3DUtil_UpdateFPSCounter(&gFPS)) {
|
||||||
|
Console_Clear();
|
||||||
|
Console_Format("VMware SVGA3D Example:\n"
|
||||||
|
"Simple Shaders.\n\n%s",
|
||||||
|
gFPS.text);
|
||||||
|
SVGA3DText_Update();
|
||||||
|
}
|
||||||
|
|
||||||
|
SVGA3DUtil_ClearFullscreen(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH,
|
||||||
|
0x113366, 1.0f, 0);
|
||||||
|
render();
|
||||||
|
SVGA3DText_Draw();
|
||||||
|
SVGA3DUtil_PresentFullscreen();
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
60
examples/simple-shaders/simple.fx
Normal file
60
examples/simple-shaders/simple.fx
Normal file
|
|
@ -0,0 +1,60 @@
|
||||||
|
float4x4 matWorldViewProj;
|
||||||
|
float timestep;
|
||||||
|
|
||||||
|
struct VS_Output
|
||||||
|
{
|
||||||
|
float4 Pos : POSITION;
|
||||||
|
float4 Coord : TEXCOORD0;
|
||||||
|
};
|
||||||
|
|
||||||
|
VS_Output
|
||||||
|
MyVertexShader(float4 inputPos : POSITION)
|
||||||
|
{
|
||||||
|
VS_Output Output;
|
||||||
|
float4 objectCoord = inputPos;
|
||||||
|
|
||||||
|
float dist = pow(objectCoord.x, 2) + pow(objectCoord.y, 2);
|
||||||
|
objectCoord.z = sin(dist * 8.0 + timestep) / (1 + dist * 10.0);
|
||||||
|
|
||||||
|
Output.Pos = mul(objectCoord, matWorldViewProj);
|
||||||
|
Output.Coord = objectCoord;
|
||||||
|
|
||||||
|
return Output;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct PS_Input
|
||||||
|
{
|
||||||
|
float4 Coord : TEXCOORD0;
|
||||||
|
};
|
||||||
|
|
||||||
|
float4
|
||||||
|
MyPixelShader(PS_Input Input) : COLOR
|
||||||
|
{
|
||||||
|
/*
|
||||||
|
* Simple 2D procedural checkerboard.
|
||||||
|
*/
|
||||||
|
|
||||||
|
const float4 color1 = { 0.25, 0.25, 0.25, 1.0 };
|
||||||
|
const float4 color2 = { 1.0, 1.0, 1.0, 1.0 };
|
||||||
|
const float checkerSize = 0.2;
|
||||||
|
|
||||||
|
float2 s = fmod(Input.Coord.xy / checkerSize, 1);
|
||||||
|
|
||||||
|
float check = ( (float)(s.x > 0.5 || (s.x < 0 && s.x > -0.5)) +
|
||||||
|
(float)(s.y > 0.5 || (s.y < 0 && s.y > -0.5)) );
|
||||||
|
|
||||||
|
float4 color = lerp(color1, color2, fmod(check, 2));
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Do a little fake shading
|
||||||
|
*/
|
||||||
|
|
||||||
|
const float4 shadeTop = { 1.0, 1.0, 0.5, 1.0 };
|
||||||
|
const float4 shadeBottom = { 0.5, 0.5, 1.0, 1.0 };
|
||||||
|
float z = Input.Coord.z * 2;
|
||||||
|
|
||||||
|
color = lerp(color, shadeBottom, clamp(z, 0, 0.25));
|
||||||
|
color = lerp(color, shadeTop, clamp(-z, 0, 0.25));
|
||||||
|
|
||||||
|
return color;
|
||||||
|
}
|
||||||
89
examples/simple-shaders/simple_ps.h
Normal file
89
examples/simple-shaders/simple_ps.h
Normal file
|
|
@ -0,0 +1,89 @@
|
||||||
|
#if 0
|
||||||
|
//
|
||||||
|
// Generated by Microsoft (R) D3DX9 Shader Compiler
|
||||||
|
//
|
||||||
|
// fxc /T ps_2_0 /E MyPixelShader /Fh simple_ps.h simple.fx
|
||||||
|
//
|
||||||
|
ps_2_0
|
||||||
|
def c0, 5, 0.5, 0, 1
|
||||||
|
def c1, -0.5, 0.25, 0, 0
|
||||||
|
def c2, 0.25, 0.25, 1, 0
|
||||||
|
def c3, 1.5, 1.5, 0, 0
|
||||||
|
def c4, 0.5, 1, 1, 0
|
||||||
|
def c5, 1, 0.5, 1, 0
|
||||||
|
dcl t0.xyz
|
||||||
|
mul r0.xy, t0, c0.x
|
||||||
|
abs r0.xy, r0
|
||||||
|
frc r0.xy, r0
|
||||||
|
cmp r0.xy, t0, r0, -r0
|
||||||
|
add r0.w, -r0.x, c0.y
|
||||||
|
cmp r0.w, r0.w, c0.z, c0.w
|
||||||
|
add r1.w, -r0.x, c1.x
|
||||||
|
cmp r1.w, r1.w, c0.z, c0.w
|
||||||
|
cmp r2.w, r0.x, c0.z, c0.w
|
||||||
|
mad r0.w, r2.w, r1.w, r0.w
|
||||||
|
cmp r0.w, -r0.w, c0.z, c0.w
|
||||||
|
add r1.w, -r0.y, c0.y
|
||||||
|
cmp r1.w, r1.w, c0.z, c0.w
|
||||||
|
add r2.w, -r0.y, c1.x
|
||||||
|
cmp r3.w, r0.y, c0.z, c0.w
|
||||||
|
cmp r2.w, r2.w, c0.z, c0.w
|
||||||
|
mad r1.w, r3.w, r2.w, r1.w
|
||||||
|
cmp r1.w, -r1.w, c0.z, c0.w
|
||||||
|
add r0.w, r0.w, r1.w
|
||||||
|
mul r0.w, r0.w, c0.y
|
||||||
|
frc r0.w, r0.w
|
||||||
|
mov r0.xyz, c3
|
||||||
|
mad r0.xyz, r0.w, r0, c2
|
||||||
|
add r0.w, t0.z, t0.z
|
||||||
|
max r1.w, r0.w, c0.z
|
||||||
|
max r2.w, -r0.w, c0.z
|
||||||
|
min r0.w, r1.w, c1.y
|
||||||
|
lrp r1.xyz, r0.w, c4, r0
|
||||||
|
min r0.w, r2.w, c1.y
|
||||||
|
lrp r2.xyz, r0.w, c5, r1
|
||||||
|
mov r0.xy, r2.x
|
||||||
|
mov r0.w, r2.z
|
||||||
|
mov r0.z, r2.y
|
||||||
|
mov oC0, r0
|
||||||
|
|
||||||
|
// approximately 34 instruction slots used
|
||||||
|
#endif
|
||||||
|
|
||||||
|
const DWORD g_ps20_MyPixelShader[] =
|
||||||
|
{
|
||||||
|
0xffff0200, 0x0013fffe, 0x42415443, 0x0000001c, 0x00000023, 0xffff0200,
|
||||||
|
0x00000000, 0x00000000, 0x20000100, 0x0000001c, 0x325f7370, 0x4d00305f,
|
||||||
|
0x6f726369, 0x74666f73, 0x29522820, 0x44334420, 0x53203958, 0x65646168,
|
||||||
|
0x6f432072, 0x6c69706d, 0x00207265, 0x05000051, 0xa00f0000, 0x40a00000,
|
||||||
|
0x3f000000, 0x00000000, 0x3f800000, 0x05000051, 0xa00f0001, 0xbf000000,
|
||||||
|
0x3e800000, 0x00000000, 0x00000000, 0x05000051, 0xa00f0002, 0x3e800000,
|
||||||
|
0x3e800000, 0x3f800000, 0x00000000, 0x05000051, 0xa00f0003, 0x3fc00000,
|
||||||
|
0x3fc00000, 0x00000000, 0x00000000, 0x05000051, 0xa00f0004, 0x3f000000,
|
||||||
|
0x3f800000, 0x3f800000, 0x00000000, 0x05000051, 0xa00f0005, 0x3f800000,
|
||||||
|
0x3f000000, 0x3f800000, 0x00000000, 0x0200001f, 0x80000000, 0xb0070000,
|
||||||
|
0x03000005, 0x80030000, 0xb0e40000, 0xa0000000, 0x02000023, 0x80030000,
|
||||||
|
0x80e40000, 0x02000013, 0x80030000, 0x80e40000, 0x04000058, 0x80030000,
|
||||||
|
0xb0e40000, 0x80e40000, 0x81e40000, 0x03000002, 0x80080000, 0x81000000,
|
||||||
|
0xa0550000, 0x04000058, 0x80080000, 0x80ff0000, 0xa0aa0000, 0xa0ff0000,
|
||||||
|
0x03000002, 0x80080001, 0x81000000, 0xa0000001, 0x04000058, 0x80080001,
|
||||||
|
0x80ff0001, 0xa0aa0000, 0xa0ff0000, 0x04000058, 0x80080002, 0x80000000,
|
||||||
|
0xa0aa0000, 0xa0ff0000, 0x04000004, 0x80080000, 0x80ff0002, 0x80ff0001,
|
||||||
|
0x80ff0000, 0x04000058, 0x80080000, 0x81ff0000, 0xa0aa0000, 0xa0ff0000,
|
||||||
|
0x03000002, 0x80080001, 0x81550000, 0xa0550000, 0x04000058, 0x80080001,
|
||||||
|
0x80ff0001, 0xa0aa0000, 0xa0ff0000, 0x03000002, 0x80080002, 0x81550000,
|
||||||
|
0xa0000001, 0x04000058, 0x80080003, 0x80550000, 0xa0aa0000, 0xa0ff0000,
|
||||||
|
0x04000058, 0x80080002, 0x80ff0002, 0xa0aa0000, 0xa0ff0000, 0x04000004,
|
||||||
|
0x80080001, 0x80ff0003, 0x80ff0002, 0x80ff0001, 0x04000058, 0x80080001,
|
||||||
|
0x81ff0001, 0xa0aa0000, 0xa0ff0000, 0x03000002, 0x80080000, 0x80ff0000,
|
||||||
|
0x80ff0001, 0x03000005, 0x80080000, 0x80ff0000, 0xa0550000, 0x02000013,
|
||||||
|
0x80080000, 0x80ff0000, 0x02000001, 0x80070000, 0xa0e40003, 0x04000004,
|
||||||
|
0x80070000, 0x80ff0000, 0x80e40000, 0xa0e40002, 0x03000002, 0x80080000,
|
||||||
|
0xb0aa0000, 0xb0aa0000, 0x0300000b, 0x80080001, 0x80ff0000, 0xa0aa0000,
|
||||||
|
0x0300000b, 0x80080002, 0x81ff0000, 0xa0aa0000, 0x0300000a, 0x80080000,
|
||||||
|
0x80ff0001, 0xa0550001, 0x04000012, 0x80070001, 0x80ff0000, 0xa0e40004,
|
||||||
|
0x80e40000, 0x0300000a, 0x80080000, 0x80ff0002, 0xa0550001, 0x04000012,
|
||||||
|
0x80070002, 0x80ff0000, 0xa0e40005, 0x80e40001, 0x02000001, 0x80030000,
|
||||||
|
0x80000002, 0x02000001, 0x80080000, 0x80aa0002, 0x02000001, 0x80040000,
|
||||||
|
0x80550002, 0x02000001, 0x800f0800, 0x80e40000, 0x0000ffff
|
||||||
|
};
|
||||||
75
examples/simple-shaders/simple_vs.h
Normal file
75
examples/simple-shaders/simple_vs.h
Normal file
|
|
@ -0,0 +1,75 @@
|
||||||
|
#if 0
|
||||||
|
//
|
||||||
|
// Generated by Microsoft (R) D3DX9 Shader Compiler
|
||||||
|
//
|
||||||
|
// fxc /T vs_2_0 /E MyVertexShader /Fh simple_vs.h simple.fx
|
||||||
|
//
|
||||||
|
//
|
||||||
|
// Parameters:
|
||||||
|
//
|
||||||
|
// float4x4 matWorldViewProj;
|
||||||
|
// float timestep;
|
||||||
|
//
|
||||||
|
//
|
||||||
|
// Registers:
|
||||||
|
//
|
||||||
|
// Name Reg Size
|
||||||
|
// ---------------- ----- ----
|
||||||
|
// matWorldViewProj c0 4
|
||||||
|
// timestep c4 1
|
||||||
|
//
|
||||||
|
|
||||||
|
vs_2_0
|
||||||
|
def c5, 8, 0.159154937, 0.5, 0
|
||||||
|
def c6, 6.28318548, -3.14159274, 10, 1
|
||||||
|
def c7, -1.55009923e-06, -2.17013894e-05, 0.00260416674, 0.00026041668
|
||||||
|
def c8, -0.020833334, -0.125, 1, 0.5
|
||||||
|
dcl_position v0
|
||||||
|
mul r0.xy, v0, v0
|
||||||
|
add r0.x, r0.y, r0.x
|
||||||
|
mov r1.x, c5.x
|
||||||
|
mad r0.y, r0.x, r1.x, c4.x
|
||||||
|
mad r0.x, r0.x, c6.z, c6.w
|
||||||
|
mad r0.y, r0.y, c5.y, c5.z
|
||||||
|
frc r0.y, r0.y
|
||||||
|
mad r0.y, r0.y, c6.x, c6.y
|
||||||
|
sincos r1.y, r0.y, c7, c8
|
||||||
|
rcp r0.x, r0.x
|
||||||
|
mul r0.z, r1.y, r0.x
|
||||||
|
mov r0.xyw, v0
|
||||||
|
dp4 oPos.x, r0, c0
|
||||||
|
dp4 oPos.y, r0, c1
|
||||||
|
dp4 oPos.z, r0, c2
|
||||||
|
dp4 oPos.w, r0, c3
|
||||||
|
mov oT0, r0
|
||||||
|
|
||||||
|
// approximately 24 instruction slots used
|
||||||
|
#endif
|
||||||
|
|
||||||
|
const DWORD g_vs20_MyVertexShader[] =
|
||||||
|
{
|
||||||
|
0xfffe0200, 0x002dfffe, 0x42415443, 0x0000001c, 0x0000008b, 0xfffe0200,
|
||||||
|
0x00000002, 0x0000001c, 0x20000100, 0x00000084, 0x00000044, 0x00000002,
|
||||||
|
0x00000004, 0x00000058, 0x00000000, 0x00000068, 0x00040002, 0x00000001,
|
||||||
|
0x00000074, 0x00000000, 0x5774616d, 0x646c726f, 0x77656956, 0x6a6f7250,
|
||||||
|
0xababab00, 0x00030003, 0x00040004, 0x00000001, 0x00000000, 0x656d6974,
|
||||||
|
0x70657473, 0xababab00, 0x00030000, 0x00010001, 0x00000001, 0x00000000,
|
||||||
|
0x325f7376, 0x4d00305f, 0x6f726369, 0x74666f73, 0x29522820, 0x44334420,
|
||||||
|
0x53203958, 0x65646168, 0x6f432072, 0x6c69706d, 0x00207265, 0x05000051,
|
||||||
|
0xa00f0005, 0x41000000, 0x3e22f983, 0x3f000000, 0x00000000, 0x05000051,
|
||||||
|
0xa00f0006, 0x40c90fdb, 0xc0490fdb, 0x41200000, 0x3f800000, 0x05000051,
|
||||||
|
0xa00f0007, 0xb5d00d01, 0xb7b60b61, 0x3b2aaaab, 0x39888889, 0x05000051,
|
||||||
|
0xa00f0008, 0xbcaaaaab, 0xbe000000, 0x3f800000, 0x3f000000, 0x0200001f,
|
||||||
|
0x80000000, 0x900f0000, 0x03000005, 0x80030000, 0x90e40000, 0x90e40000,
|
||||||
|
0x03000002, 0x80010000, 0x80550000, 0x80000000, 0x02000001, 0x80010001,
|
||||||
|
0xa0000005, 0x04000004, 0x80020000, 0x80000000, 0x80000001, 0xa0000004,
|
||||||
|
0x04000004, 0x80010000, 0x80000000, 0xa0aa0006, 0xa0ff0006, 0x04000004,
|
||||||
|
0x80020000, 0x80550000, 0xa0550005, 0xa0aa0005, 0x02000013, 0x80020000,
|
||||||
|
0x80550000, 0x04000004, 0x80020000, 0x80550000, 0xa0000006, 0xa0550006,
|
||||||
|
0x04000025, 0x80020001, 0x80550000, 0xa0e40007, 0xa0e40008, 0x02000006,
|
||||||
|
0x80010000, 0x80000000, 0x03000005, 0x80040000, 0x80550001, 0x80000000,
|
||||||
|
0x02000001, 0x800b0000, 0x90e40000, 0x03000009, 0xc0010000, 0x80e40000,
|
||||||
|
0xa0e40000, 0x03000009, 0xc0020000, 0x80e40000, 0xa0e40001, 0x03000009,
|
||||||
|
0xc0040000, 0x80e40000, 0xa0e40002, 0x03000009, 0xc0080000, 0x80e40000,
|
||||||
|
0xa0e40003, 0x02000001, 0xe00f0000, 0x80e40000, 0x0000ffff
|
||||||
|
};
|
||||||
6
examples/video-formats/Makefile
Normal file
6
examples/video-formats/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = video-formats.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c screen.png.data.o wols4x3.yuv.z.data.o
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
297
examples/video-formats/main.c
Normal file
297
examples/video-formats/main.c
Normal file
|
|
@ -0,0 +1,297 @@
|
||||||
|
/*
|
||||||
|
* video-formats -- Demonstrate all supported video overlay formats.
|
||||||
|
*
|
||||||
|
* XXX: There are some known bugs in the currently released VMware
|
||||||
|
* products, which are exposed by this test:
|
||||||
|
*
|
||||||
|
* 1. The very first VideoFlush may not appear. In this test,
|
||||||
|
* the bug manifests as "No Overlay" for test #1.
|
||||||
|
*
|
||||||
|
* 2. Software emulated scaling is very low quality.
|
||||||
|
*
|
||||||
|
* 3. If the host is using hardware video overlay rather than
|
||||||
|
* its software fallback, it assumes that colorkey is always
|
||||||
|
* enabled. This means our video will only draw in the black
|
||||||
|
* portions of the background image (inside the "X", and
|
||||||
|
* the box around the "No overlay" text.)
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#include "svga.h"
|
||||||
|
#include "png.h"
|
||||||
|
#include "intr.h"
|
||||||
|
#include "datafile.h"
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This is our video test card, in UYVY format.
|
||||||
|
*
|
||||||
|
* It's a 720x576 pixel 4:3 aspect test card designed by Barney
|
||||||
|
* Wol. (http://www.barney-wol.net/testpatterns)
|
||||||
|
*/
|
||||||
|
|
||||||
|
DECLARE_DATAFILE(testCardFile, wols4x3_yuv_z);
|
||||||
|
|
||||||
|
#define TESTCARD_WIDTH 720
|
||||||
|
#define TESTCARD_HEIGHT 576
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Our background image, in PNG format.
|
||||||
|
*
|
||||||
|
* This has 'cutouts' where we're supposed to display the test
|
||||||
|
* pattern. Each of these are described by the table of overlay
|
||||||
|
* settings below.
|
||||||
|
*/
|
||||||
|
|
||||||
|
DECLARE_DATAFILE(screenPNGFile, screen_png);
|
||||||
|
|
||||||
|
#define OFFSET_YUY2 0x400000
|
||||||
|
#define OFFSET_UYVY 0x500000
|
||||||
|
#define OFFSET_YV12 0x600000
|
||||||
|
|
||||||
|
static SVGAOverlayUnit overlays[] = {
|
||||||
|
// #0 - YUY2 Large
|
||||||
|
{
|
||||||
|
.enabled = TRUE,
|
||||||
|
.format = VMWARE_FOURCC_YUY2,
|
||||||
|
.width = TESTCARD_WIDTH,
|
||||||
|
.height = TESTCARD_HEIGHT,
|
||||||
|
.srcWidth = TESTCARD_WIDTH,
|
||||||
|
.srcHeight = TESTCARD_HEIGHT,
|
||||||
|
.dstX = 109,
|
||||||
|
.dstY = 407,
|
||||||
|
.dstWidth = 320,
|
||||||
|
.dstHeight = 240,
|
||||||
|
.pitches[0] = TESTCARD_WIDTH * 2,
|
||||||
|
.dataOffset = OFFSET_YUY2,
|
||||||
|
},
|
||||||
|
|
||||||
|
// #1 - YV12 Large
|
||||||
|
{
|
||||||
|
.enabled = TRUE,
|
||||||
|
.format = VMWARE_FOURCC_YV12,
|
||||||
|
.width = TESTCARD_WIDTH,
|
||||||
|
.height = TESTCARD_HEIGHT,
|
||||||
|
.srcWidth = TESTCARD_WIDTH,
|
||||||
|
.srcHeight = TESTCARD_HEIGHT,
|
||||||
|
.dstX = 564,
|
||||||
|
.dstY = 58,
|
||||||
|
.dstWidth = 320,
|
||||||
|
.dstHeight = 240,
|
||||||
|
.pitches[0] = TESTCARD_WIDTH,
|
||||||
|
.pitches[1] = TESTCARD_WIDTH / 2,
|
||||||
|
.pitches[2] = TESTCARD_WIDTH / 2,
|
||||||
|
.dataOffset = OFFSET_YV12,
|
||||||
|
},
|
||||||
|
|
||||||
|
// #2 - UYVY Large
|
||||||
|
{
|
||||||
|
.enabled = TRUE,
|
||||||
|
.format = VMWARE_FOURCC_UYVY,
|
||||||
|
.width = TESTCARD_WIDTH,
|
||||||
|
.height = TESTCARD_HEIGHT,
|
||||||
|
.srcWidth = TESTCARD_WIDTH,
|
||||||
|
.srcHeight = TESTCARD_HEIGHT,
|
||||||
|
.dstX = 564,
|
||||||
|
.dstY = 407,
|
||||||
|
.dstWidth = 320,
|
||||||
|
.dstHeight = 240,
|
||||||
|
.pitches[0] = TESTCARD_WIDTH * 2,
|
||||||
|
.dataOffset = OFFSET_UYVY,
|
||||||
|
},
|
||||||
|
|
||||||
|
// #3 - YUY2 Small
|
||||||
|
{
|
||||||
|
.enabled = TRUE,
|
||||||
|
.format = VMWARE_FOURCC_YUY2,
|
||||||
|
.width = TESTCARD_WIDTH,
|
||||||
|
.height = TESTCARD_HEIGHT,
|
||||||
|
.srcX = 34,
|
||||||
|
.srcY = 31,
|
||||||
|
.srcWidth = 76,
|
||||||
|
.srcHeight = 79,
|
||||||
|
.dstX = 109,
|
||||||
|
.dstY = 652,
|
||||||
|
.dstWidth = 64,
|
||||||
|
.dstHeight = 64,
|
||||||
|
.pitches[0] = TESTCARD_WIDTH * 2,
|
||||||
|
.dataOffset = OFFSET_YUY2,
|
||||||
|
},
|
||||||
|
|
||||||
|
// #4 - YV12 Small
|
||||||
|
{
|
||||||
|
.enabled = TRUE,
|
||||||
|
.format = VMWARE_FOURCC_YV12,
|
||||||
|
.width = TESTCARD_WIDTH,
|
||||||
|
.height = TESTCARD_HEIGHT,
|
||||||
|
.srcX = 34,
|
||||||
|
.srcY = 31,
|
||||||
|
.srcWidth = 76,
|
||||||
|
.srcHeight = 79,
|
||||||
|
.dstX = 564,
|
||||||
|
.dstY = 303,
|
||||||
|
.dstWidth = 64,
|
||||||
|
.dstHeight = 64,
|
||||||
|
.pitches[0] = TESTCARD_WIDTH,
|
||||||
|
.pitches[1] = TESTCARD_WIDTH / 2,
|
||||||
|
.pitches[2] = TESTCARD_WIDTH / 2,
|
||||||
|
.dataOffset = OFFSET_YV12,
|
||||||
|
},
|
||||||
|
|
||||||
|
// #5 - UYVY Small
|
||||||
|
{
|
||||||
|
.enabled = TRUE,
|
||||||
|
.format = VMWARE_FOURCC_UYVY,
|
||||||
|
.width = TESTCARD_WIDTH,
|
||||||
|
.height = TESTCARD_HEIGHT,
|
||||||
|
.srcX = 34,
|
||||||
|
.srcY = 31,
|
||||||
|
.srcWidth = 76,
|
||||||
|
.srcHeight = 79,
|
||||||
|
.dstX = 564,
|
||||||
|
.dstY = 652,
|
||||||
|
.dstWidth = 64,
|
||||||
|
.dstHeight = 64,
|
||||||
|
.pitches[0] = TESTCARD_WIDTH * 2,
|
||||||
|
.dataOffset = OFFSET_UYVY,
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* convertUYVYtoYUY2 --
|
||||||
|
*
|
||||||
|
* Convert the test card image from UYVY format to YUY2.
|
||||||
|
* Both of these are packed-pixel formats, they just use
|
||||||
|
* different byte orders.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
convertUYVYtoYUY2(uint8 *src, // IN
|
||||||
|
uint8 *dest) // OUT
|
||||||
|
{
|
||||||
|
uint32 numWords = TESTCARD_WIDTH / 2 * TESTCARD_HEIGHT;
|
||||||
|
|
||||||
|
while (numWords--) {
|
||||||
|
uint8 u = *(src++);
|
||||||
|
uint8 y1 = *(src++);
|
||||||
|
uint8 v = *(src++);
|
||||||
|
uint8 y2 = *(src++);
|
||||||
|
|
||||||
|
*(dest++) = y1;
|
||||||
|
*(dest++) = u;
|
||||||
|
*(dest++) = y2;
|
||||||
|
*(dest++) = v;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* convertUYVYtoYV12 --
|
||||||
|
*
|
||||||
|
* Convert the test card image from UYVY format (packed pixel) to
|
||||||
|
* YV12 (planar). This vertically decimates the chroma planes by
|
||||||
|
* 1/2.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
convertUYVYtoYV12(uint8 *src, // IN
|
||||||
|
uint8 *dest) // OUT
|
||||||
|
{
|
||||||
|
/*
|
||||||
|
* Y plane, full resolution.
|
||||||
|
*/
|
||||||
|
|
||||||
|
uint8 *s = src;
|
||||||
|
uint32 numWords = TESTCARD_WIDTH / 2 * TESTCARD_HEIGHT;
|
||||||
|
while (numWords--) {
|
||||||
|
s++; // U
|
||||||
|
*(dest++) = *(s++); // Y1
|
||||||
|
s++; // V
|
||||||
|
*(dest++) = *(s++); // Y2
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* U and V planes, at 1/2 height.
|
||||||
|
*/
|
||||||
|
|
||||||
|
uint32 x, y;
|
||||||
|
const uint32 pitch = TESTCARD_WIDTH * 2;
|
||||||
|
uint8 *line1 = src;
|
||||||
|
uint8 *v = dest;
|
||||||
|
uint8 *u = v + (TESTCARD_WIDTH * TESTCARD_HEIGHT) / 4;
|
||||||
|
|
||||||
|
for (y = TESTCARD_HEIGHT/2; y; y--) {
|
||||||
|
uint8 *line2 = line1 + pitch;
|
||||||
|
|
||||||
|
for (x = TESTCARD_WIDTH/2; x; x--) {
|
||||||
|
|
||||||
|
uint8 u1 = *(line1)++; // U
|
||||||
|
line1++; // Y1
|
||||||
|
uint8 v1 = *(line1)++; // V
|
||||||
|
line1++; // Y2
|
||||||
|
|
||||||
|
uint8 u2 = *(line2)++; // U
|
||||||
|
line2++; // Y1
|
||||||
|
uint8 v2 = *(line2)++; // V
|
||||||
|
line2++; // Y2
|
||||||
|
|
||||||
|
*(u++) = ((int)u1 + (int)u2) >> 1;
|
||||||
|
*(v++) = ((int)v1 + (int)v2) >> 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
line1 = line2;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Set up the virtual hardware, decompress the YUV images, and
|
||||||
|
* program the overlay units.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
PNGChunkIHDR *screenPNG = PNG_Header(screenPNGFile->ptr);
|
||||||
|
uint32 width = bswap32(screenPNG->width);
|
||||||
|
uint32 height = bswap32(screenPNG->height);
|
||||||
|
uint32 streamId;
|
||||||
|
|
||||||
|
Intr_Init();
|
||||||
|
Intr_SetFaultHandlers(SVGA_DefaultFaultHandler);
|
||||||
|
SVGA_Init();
|
||||||
|
SVGA_SetMode(width, height, 32);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Draw the background image
|
||||||
|
*/
|
||||||
|
|
||||||
|
PNG_DecompressBGRX(screenPNG, (uint32*) gSVGA.fbMem, gSVGA.pitch);
|
||||||
|
SVGA_Update(0, 0, width, height);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Decompress the YUY2 image, and use it to generate UYVY and YV12 versions.
|
||||||
|
*/
|
||||||
|
|
||||||
|
DataFile_Decompress(testCardFile, gSVGA.fbMem + OFFSET_UYVY, 0x100000);
|
||||||
|
convertUYVYtoYUY2(gSVGA.fbMem + OFFSET_UYVY, gSVGA.fbMem + OFFSET_YUY2);
|
||||||
|
convertUYVYtoYV12(gSVGA.fbMem + OFFSET_UYVY, gSVGA.fbMem + OFFSET_YV12);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Program the overlay units
|
||||||
|
*/
|
||||||
|
|
||||||
|
for (streamId = 0; streamId < arraysize(overlays); streamId++) {
|
||||||
|
SVGA_VideoSetAllRegs(streamId, &overlays[streamId], SVGA_VIDEO_PITCH_3);
|
||||||
|
SVGA_VideoFlush(streamId);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
BIN
examples/video-formats/screen.png
Normal file
BIN
examples/video-formats/screen.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 58 KiB |
1
examples/video-formats/wols4x3.yuv
Normal file
1
examples/video-formats/wols4x3.yuv
Normal file
File diff suppressed because one or more lines are too long
6
examples/video-sync/Makefile
Normal file
6
examples/video-sync/Makefile
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
TARGET = video-sync.img
|
||||||
|
|
||||||
|
APP_SOURCES = main.c screen.png.data.o
|
||||||
|
|
||||||
|
LIB_DIR = ../../lib
|
||||||
|
include $(LIB_DIR)/Makefile.rules
|
||||||
147
examples/video-sync/main.c
Normal file
147
examples/video-sync/main.c
Normal file
|
|
@ -0,0 +1,147 @@
|
||||||
|
/*
|
||||||
|
* video-sync -- Test video DMA synchronization, by displaying a
|
||||||
|
* sequence of animated frames with flow control and multi-frame
|
||||||
|
* buffering.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2008-2009 VMware, Inc. Licensed under the MIT
|
||||||
|
* License, please see the README.txt. All rights reserved.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#include "svga.h"
|
||||||
|
#include "png.h"
|
||||||
|
#include "intr.h"
|
||||||
|
#include "datafile.h"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Our background image, in PNG format.
|
||||||
|
*/
|
||||||
|
|
||||||
|
DECLARE_DATAFILE(screenPNGFile, screen_png);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* generateFrame --
|
||||||
|
*
|
||||||
|
* Generate one frame of video, in UYVY format.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
generateFrame(uint8 *buffer, // OUT
|
||||||
|
uint32 width, // IN
|
||||||
|
uint32 height, // IN
|
||||||
|
uint32 frame) // IN
|
||||||
|
{
|
||||||
|
uint32 wordPitch = width / 2;
|
||||||
|
uint32 numWords = wordPitch * height;
|
||||||
|
int x = frame % width;
|
||||||
|
uint32 *linePtr = (uint32*)buffer + (x >> 1);
|
||||||
|
uint32 lineWord;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Clear it multiple times, so it will be obvious if the
|
||||||
|
* host reads a frame that we're still writing to.
|
||||||
|
*/
|
||||||
|
|
||||||
|
// Y1VVY0UU
|
||||||
|
memset32(buffer, 0xFFFFFFFF, numWords);
|
||||||
|
memset32(buffer, 0x40804080, numWords);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Draw a vertical line that moves right on each frame. This is
|
||||||
|
* the easiest way to make it obvious when the image tears.
|
||||||
|
*
|
||||||
|
* This test will also show when the luminance bytes in the
|
||||||
|
* packed-pixel decoder are out of order.
|
||||||
|
*/
|
||||||
|
|
||||||
|
if (x & 1) {
|
||||||
|
lineWord = 0xFF804080;
|
||||||
|
} else {
|
||||||
|
lineWord = 0x4080FF80;
|
||||||
|
}
|
||||||
|
|
||||||
|
while (height--) {
|
||||||
|
*linePtr = lineWord;
|
||||||
|
linePtr += wordPitch;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* main --
|
||||||
|
*
|
||||||
|
* Initialization and main loop.
|
||||||
|
*/
|
||||||
|
|
||||||
|
int
|
||||||
|
main(void)
|
||||||
|
{
|
||||||
|
PNGChunkIHDR *screenPNG = PNG_Header(screenPNGFile->ptr);
|
||||||
|
uint32 width = bswap32(screenPNG->width);
|
||||||
|
uint32 height = bswap32(screenPNG->height);
|
||||||
|
|
||||||
|
Intr_Init();
|
||||||
|
Intr_SetFaultHandlers(SVGA_DefaultFaultHandler);
|
||||||
|
SVGA_Init();
|
||||||
|
SVGA_SetMode(width, height, 32);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Draw the background image
|
||||||
|
*/
|
||||||
|
|
||||||
|
PNG_DecompressBGRX(screenPNG, (uint32*) gSVGA.fbMem, gSVGA.pitch);
|
||||||
|
SVGA_Update(0, 0, width, height);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Initialize the video overlay unit. We're displaying DVD-resolution
|
||||||
|
* letterboxed 16:9 video, in UYVY (packed-pixel) format.
|
||||||
|
*/
|
||||||
|
|
||||||
|
SVGAOverlayUnit overlay = {
|
||||||
|
.enabled = TRUE,
|
||||||
|
.format = VMWARE_FOURCC_UYVY,
|
||||||
|
.width = 720,
|
||||||
|
.height = 480,
|
||||||
|
.srcWidth = 720,
|
||||||
|
.srcHeight = 480,
|
||||||
|
.dstX = 1,
|
||||||
|
.dstY = 92,
|
||||||
|
.dstWidth = 1022,
|
||||||
|
.dstHeight = 574,
|
||||||
|
.pitches[0] = 1440,
|
||||||
|
};
|
||||||
|
|
||||||
|
SVGA_VideoSetAllRegs(0, &overlay, SVGA_VIDEO_PITCH_3);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Main loop. Loop over each frame in the ring buffer repeatedly.
|
||||||
|
* We wait for the DMA buffer to become available, fill it with the
|
||||||
|
* next frame, then program the overlay unit to display that frame.
|
||||||
|
*/
|
||||||
|
|
||||||
|
uint32 frameCounter = 0;
|
||||||
|
|
||||||
|
uint32 baseOffset = width * height * 4;
|
||||||
|
uint32 frameSize = overlay.pitches[0] * overlay.height;
|
||||||
|
static uint32 fences[16];
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
uint32 bufferId;
|
||||||
|
|
||||||
|
for (bufferId = 0; bufferId < arraysize(fences); bufferId++) {
|
||||||
|
uint32 bufferOffset = baseOffset + bufferId * frameSize;
|
||||||
|
uint8 *bufferPtr = gSVGA.fbMem + bufferOffset;
|
||||||
|
|
||||||
|
SVGA_SyncToFence(fences[bufferId]);
|
||||||
|
|
||||||
|
generateFrame(bufferPtr, overlay.width, overlay.height, frameCounter++);
|
||||||
|
|
||||||
|
SVGA_VideoSetReg(0, SVGA_VIDEO_DATA_OFFSET, bufferOffset);
|
||||||
|
SVGA_VideoFlush(0);
|
||||||
|
|
||||||
|
fences[bufferId] = SVGA_InsertFence();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
BIN
examples/video-sync/screen.png
Normal file
BIN
examples/video-sync/screen.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 15 KiB |
132
lib/Makefile.rules
Normal file
132
lib/Makefile.rules
Normal file
|
|
@ -0,0 +1,132 @@
|
||||||
|
#
|
||||||
|
# Common GNU Make rules for the VMware SVGA examples.
|
||||||
|
#
|
||||||
|
# To build your own apps, you just need a makefile which
|
||||||
|
# defines a few variables and includes this one. For example:
|
||||||
|
#
|
||||||
|
# LIB_DIR = path/to/lib
|
||||||
|
# TARGET = myapp.img
|
||||||
|
# APP_MODULES = main
|
||||||
|
# include $(LIB_DIR)/Makefile.rules
|
||||||
|
#
|
||||||
|
# All examples get compiled with all library code, and we let
|
||||||
|
# GCC garbage collect modules that aren't being used.
|
||||||
|
#
|
||||||
|
|
||||||
|
# Basic options necessary to produce our standalone binary.
|
||||||
|
# Produce 32-bit code, even on 64-bit machines. Don't use
|
||||||
|
# the standard library at all. Begin the text segment at 1MB.
|
||||||
|
|
||||||
|
CFLAGS := -m32 -ffreestanding -nostdinc -fno-stack-protector
|
||||||
|
LDFLAGS := -nostdlib -Wl,-T,$(LIB_DIR)/metalkit/image.ld
|
||||||
|
|
||||||
|
# Extra warnings
|
||||||
|
CFLAGS += -Wall -Werror
|
||||||
|
|
||||||
|
# Size Optimizations.
|
||||||
|
CFLAGS += -Os -Wl,--gc-sections -ffunction-sections -fdata-sections
|
||||||
|
|
||||||
|
# This enables extra gcc builtins for floating point math.
|
||||||
|
CFLAGS += -march=i686 -ffast-math
|
||||||
|
|
||||||
|
# Generate debug symbols. These only show up in the .elf file, not the
|
||||||
|
# final image. Recent versions of VMware have a gdb debug stub that
|
||||||
|
# you can use along with these symbols for source-level debugging of
|
||||||
|
# Metalkit apps.
|
||||||
|
CFLAGS += -g
|
||||||
|
|
||||||
|
# Most of the examples only need 4MB of memory. Some examples
|
||||||
|
# override this, so only set it if it isn't already defined.
|
||||||
|
ifeq ($(VMX_MEMSIZE),)
|
||||||
|
VMX_MEMSIZE = 4
|
||||||
|
endif
|
||||||
|
|
||||||
|
CFLAGS += \
|
||||||
|
-I$(LIB_DIR)/metalkit \
|
||||||
|
-I$(LIB_DIR)/util \
|
||||||
|
-I$(LIB_DIR)/refdriver \
|
||||||
|
-I$(LIB_DIR)/vmware \
|
||||||
|
|
||||||
|
SOURCES := \
|
||||||
|
$(LIB_DIR)/metalkit/boot.S \
|
||||||
|
$(LIB_DIR)/metalkit/pci.c \
|
||||||
|
$(LIB_DIR)/metalkit/intr.c \
|
||||||
|
$(LIB_DIR)/metalkit/console.c \
|
||||||
|
$(LIB_DIR)/metalkit/console_vga.c \
|
||||||
|
$(LIB_DIR)/metalkit/puff.c \
|
||||||
|
$(LIB_DIR)/metalkit/timer.c \
|
||||||
|
$(LIB_DIR)/metalkit/keyboard.c \
|
||||||
|
$(LIB_DIR)/metalkit/bios.c \
|
||||||
|
$(LIB_DIR)/metalkit/apm.c \
|
||||||
|
$(LIB_DIR)/metalkit/gcc_support.c \
|
||||||
|
$(LIB_DIR)/util/matrix.c \
|
||||||
|
$(LIB_DIR)/util/svga3dutil.c \
|
||||||
|
$(LIB_DIR)/util/svga3dtext.c \
|
||||||
|
$(LIB_DIR)/util/vmbackdoor.c \
|
||||||
|
$(LIB_DIR)/util/mt19937ar.c \
|
||||||
|
$(LIB_DIR)/util/png.c \
|
||||||
|
$(LIB_DIR)/refdriver/svga.c \
|
||||||
|
$(LIB_DIR)/refdriver/svga3d.c \
|
||||||
|
$(LIB_DIR)/refdriver/gmr.c \
|
||||||
|
$(APP_SOURCES)
|
||||||
|
|
||||||
|
ELF_TARGET := $(subst .img,.elf,$(TARGET))
|
||||||
|
LST_TARGET := $(subst .img,.lst,$(TARGET))
|
||||||
|
VMX_TARGET := $(subst .img,.vmx,$(TARGET))
|
||||||
|
PLAIN_TARGET := $(subst .img,,$(TARGET))
|
||||||
|
|
||||||
|
|
||||||
|
.PHONY: all target clean sizeprof listing
|
||||||
|
|
||||||
|
target: $(TARGET) $(VMX_TARGET)
|
||||||
|
|
||||||
|
%.lst: %.elf
|
||||||
|
objdump -d $< > $@
|
||||||
|
|
||||||
|
%.img: %.elf
|
||||||
|
objcopy -O binary $< $@
|
||||||
|
|
||||||
|
# Stackable rules for processing data files
|
||||||
|
|
||||||
|
%.data.o: %
|
||||||
|
objcopy -I binary -O elf32-i386 -B i386 $< $@
|
||||||
|
|
||||||
|
%.z: %
|
||||||
|
python $(LIB_DIR)/metalkit/deflate.py < $< > $@
|
||||||
|
|
||||||
|
# To optimize size, we compile all input files in one step. This
|
||||||
|
# lets GCC use information available from all files during its
|
||||||
|
# optimization phase.
|
||||||
|
|
||||||
|
$(ELF_TARGET): $(SOURCES)
|
||||||
|
$(CC) $(LDFLAGS) $(CFLAGS) -o $@ $(SOURCES)
|
||||||
|
|
||||||
|
clean:
|
||||||
|
rm -f $(TARGET) $(ELF_TARGET) $(LST_TARGET) $(VMX_TARGET) *.o
|
||||||
|
|
||||||
|
# This is a phony target which prints a list of symbols, sorted by
|
||||||
|
# size, and excluding the BSS segment. This is a quick way to see
|
||||||
|
# which functions and initialized data are taking the most space in
|
||||||
|
# the final binary.
|
||||||
|
|
||||||
|
sizeprof: $(ELF_TARGET)
|
||||||
|
@nm --size-sort -S $< | egrep -v " [bBsS] "
|
||||||
|
|
||||||
|
# Another phony target, for convenience, which dumps an assembly
|
||||||
|
# listing to stdout.
|
||||||
|
|
||||||
|
listing: $(ELF_TARGET)
|
||||||
|
objdump -d $<
|
||||||
|
|
||||||
|
# Generate a .vmx config file for VMware
|
||||||
|
|
||||||
|
$(VMX_TARGET):
|
||||||
|
@echo config.version = 8 > $(VMX_TARGET)
|
||||||
|
@echo virtualHW.version = 7 >> $(VMX_TARGET)
|
||||||
|
@echo memsize = $(VMX_MEMSIZE) >> $(VMX_TARGET)
|
||||||
|
@echo displayname = $(PLAIN_TARGET) >> $(VMX_TARGET)
|
||||||
|
@echo guestOS = other >> $(VMX_TARGET)
|
||||||
|
@echo mks.enable3d = TRUE >> $(VMX_TARGET)
|
||||||
|
@echo floppy0.startConnected = TRUE >> $(VMX_TARGET)
|
||||||
|
@echo floppy0.fileType = file >> $(VMX_TARGET)
|
||||||
|
@echo floppy0.fileName = $(TARGET) >> $(VMX_TARGET)
|
||||||
25
lib/README
Normal file
25
lib/README
Normal file
|
|
@ -0,0 +1,25 @@
|
||||||
|
Library Code
|
||||||
|
------------
|
||||||
|
|
||||||
|
metalkit -
|
||||||
|
Open source (MIT-licensed) library code for writing programs
|
||||||
|
that run on the IA32 architecture on the "bare metal", without
|
||||||
|
an operating system.
|
||||||
|
|
||||||
|
refdriver -
|
||||||
|
Source code for the VMware SVGA reference driver.
|
||||||
|
|
||||||
|
util -
|
||||||
|
Utility code used by the accompanying examples. Includes higher
|
||||||
|
level APIs built on top of the reference driver, as well as
|
||||||
|
miscellaneous code such as text rendering and matrix math.
|
||||||
|
|
||||||
|
vmware -
|
||||||
|
VMware-provided header files, including the headers which define
|
||||||
|
registers and FIFO commands used by the VMware SVGA device.
|
||||||
|
|
||||||
|
win32 -
|
||||||
|
A Win32 port of the VMWare SVGA reference driver. This driver runs
|
||||||
|
in userspace, using the kernel mode interface provided by VMware's
|
||||||
|
proprietary kernel-mode graphics driver for Windows XP.
|
||||||
|
|
||||||
164
lib/metalkit/apm.c
Normal file
164
lib/metalkit/apm.c
Normal file
|
|
@ -0,0 +1,164 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* apm.c - Support for the legacy Advanced Power Management (APM) BIOS
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "apm.h"
|
||||||
|
#include "bios.h"
|
||||||
|
#include "intr.h"
|
||||||
|
|
||||||
|
APMState gAPM;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* APM_Init --
|
||||||
|
*
|
||||||
|
* Probe for APM support. If APM is available, this connects to APM.
|
||||||
|
*
|
||||||
|
* It would be easier to use the 16-bit real mode interface via
|
||||||
|
* Metalkit's BIOS module, but that wouldn't work very well for us
|
||||||
|
* because we can't handle interrupts during a real-mode BIOS call.
|
||||||
|
* So, any APM_Idle() call would hang!
|
||||||
|
*
|
||||||
|
* Instead, we need to use 16-bit BIOS calls to bootstrap APM, then
|
||||||
|
* we do our real work via the 32-bit APM interface that is present
|
||||||
|
* in all APM 1.2 BIOSes.
|
||||||
|
*
|
||||||
|
* On exit, gAPM will have a valid 'connected' flag, APM version,
|
||||||
|
* and flags.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
APM_Init()
|
||||||
|
{
|
||||||
|
APMState *self = &gAPM;
|
||||||
|
Regs reg = {};
|
||||||
|
|
||||||
|
/* Real mode "APM Installation Check" call */
|
||||||
|
reg.ax = 0x5300;
|
||||||
|
reg.bx = 0x0000;
|
||||||
|
BIOS_Call(0x15, ®);
|
||||||
|
if (reg.bx == SIGNATURE_APM && reg.cf == 0) {
|
||||||
|
self->version = reg.ax;
|
||||||
|
self->flags = reg.cx;
|
||||||
|
} else {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Real-mode interface connect */
|
||||||
|
reg.ax = 0x5303;
|
||||||
|
reg.bx = 0x0000;
|
||||||
|
BIOS_Call(0x15, ®);
|
||||||
|
if (reg.cf != 0) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Indicate that we want APM v1.2 */
|
||||||
|
reg.ax = 0x530e;
|
||||||
|
reg.bx = 0x0000;
|
||||||
|
reg.cx = 0x0102;
|
||||||
|
BIOS_Call(0x15, ®);
|
||||||
|
if (reg.cf != 0) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Success! */
|
||||||
|
self->connected = TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* APM_Idle --
|
||||||
|
*
|
||||||
|
* If we're connected to APM, issue a "CPU Idle" call. The BIOS may
|
||||||
|
* halt the CPU until the next interrupt and/or slow or stop the
|
||||||
|
* CPU clock.
|
||||||
|
*
|
||||||
|
* If we aren't connected to APM or the APM call is unsuccessful,
|
||||||
|
* this issue a CPU HLT instruction.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
APM_Idle()
|
||||||
|
{
|
||||||
|
/*
|
||||||
|
* XXX: This doesn't actually work, because BIOS_Call disables
|
||||||
|
* interrupts! To get idle calls working, we'll need to use
|
||||||
|
* the real 32-bit APM interface.
|
||||||
|
*/
|
||||||
|
#if 0
|
||||||
|
|
||||||
|
APMState *self = &gAPM;
|
||||||
|
|
||||||
|
if (self->connected) {
|
||||||
|
Regs reg = {};
|
||||||
|
|
||||||
|
/* Real mode "CPU Idle" call */
|
||||||
|
reg.ax = 0x5305;
|
||||||
|
BIOS_Call(0x15, ®);
|
||||||
|
if (reg.cf == 0) {
|
||||||
|
/* Success */
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* Fall back to CPU HLT */
|
||||||
|
Intr_Halt();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* APM_SetPowerState --
|
||||||
|
*
|
||||||
|
* Set the power state of all APM-managed devices.
|
||||||
|
* If we aren't connected to APM, always fails.
|
||||||
|
*
|
||||||
|
* Returns TRUE on success, FALSE on error.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall Bool
|
||||||
|
APM_SetPowerState(uint16 state)
|
||||||
|
{
|
||||||
|
APMState *self = &gAPM;
|
||||||
|
|
||||||
|
if (self->connected) {
|
||||||
|
Regs reg = {};
|
||||||
|
|
||||||
|
reg.ax = 0x5307; // APM Set Power State
|
||||||
|
reg.bx = 0x0001; // All devices
|
||||||
|
reg.cx = state;
|
||||||
|
BIOS_Call(0x15, ®);
|
||||||
|
|
||||||
|
return reg.cf == 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
return FALSE;
|
||||||
|
}
|
||||||
65
lib/metalkit/apm.h
Normal file
65
lib/metalkit/apm.h
Normal file
|
|
@ -0,0 +1,65 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* apm.c - Support for the legacy Advanced Power Management (APM) BIOS
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __APM_H__
|
||||||
|
#define __APM_H__
|
||||||
|
|
||||||
|
#include "types.h"
|
||||||
|
#include "bios.h"
|
||||||
|
|
||||||
|
#define SIGNATURE_APM 0x504d // "PM"
|
||||||
|
|
||||||
|
#define APM_FLAG_16BIT (1 << 0)
|
||||||
|
#define APM_FLAG_32BIT (1 << 1)
|
||||||
|
#define APM_FLAG_SLOW_CPU_ON_IDLE (1 << 2)
|
||||||
|
#define APM_FLAG_DISABLED (1 << 3)
|
||||||
|
#define APM_FLAG_DISENGAGED (1 << 4)
|
||||||
|
|
||||||
|
/* APM power states */
|
||||||
|
#define POWER_ON 0
|
||||||
|
#define POWER_STANDBY 1
|
||||||
|
#define POWER_SUSPEND 2
|
||||||
|
#define POWER_OFF 3
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
Bool connected; // Are we successfully connected to APM?
|
||||||
|
uint16 version; // Supported APM version in BCD, 0 if not supported
|
||||||
|
uint16 flags;
|
||||||
|
} APMState;
|
||||||
|
|
||||||
|
extern APMState gAPM;
|
||||||
|
|
||||||
|
fastcall void APM_Init();
|
||||||
|
fastcall void APM_Idle();
|
||||||
|
fastcall Bool APM_SetPowerState(uint16 state);
|
||||||
|
|
||||||
|
#endif /* __APM_H_ */
|
||||||
247
lib/metalkit/bios.c
Normal file
247
lib/metalkit/bios.c
Normal file
|
|
@ -0,0 +1,247 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* bios.c - Make real-mode BIOS calls from protected mode.
|
||||||
|
* For simplicity and small size, this implementation
|
||||||
|
* switches back to real-mode rather than using virtual 8086
|
||||||
|
* mode. A v86 mode implementation may be more robust.
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "bios.h"
|
||||||
|
#include "boot.h"
|
||||||
|
#include "intr.h"
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* BIOSCallInternal --
|
||||||
|
*
|
||||||
|
* Internal implementation of BIOS_Call. This is a C function which
|
||||||
|
* wraps the assembly-language internal implementation. The only
|
||||||
|
* reason to use C here, really, is so we can easily calculate
|
||||||
|
* offsets into our shared C structures.
|
||||||
|
*
|
||||||
|
* This function must not make any function calls, since we need to
|
||||||
|
* be able to trust the value of %esp. This is also why it must not
|
||||||
|
* be inlined into BIOS_Call itself.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static __attribute__((noinline)) void
|
||||||
|
BIOSCallInternal(void)
|
||||||
|
{
|
||||||
|
/*
|
||||||
|
* Save registers and stack in a safe place.
|
||||||
|
*/
|
||||||
|
asm volatile ("pusha");
|
||||||
|
asm volatile ("mov %%esp, %0" :"=m" (BIOS_SHARED->esp));
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Jump the the relocated 16-bit trampoline (source code below).
|
||||||
|
*/
|
||||||
|
asm volatile ("ljmp %0, %1"
|
||||||
|
:: "i" (BOOT_CODE16_SEG), "i" (BIOS_SHARED->trampoline));
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This is where we return from the relocated trampoline.
|
||||||
|
* We're back in protected mode, but the data segments
|
||||||
|
* are still 16-bit. Restore them.
|
||||||
|
*/
|
||||||
|
|
||||||
|
asm volatile ("BIOSReturn32: \n"
|
||||||
|
"mov %0, %%ax \n"
|
||||||
|
"mov %%ax, %%ss \n"
|
||||||
|
"mov %%ax, %%ds \n"
|
||||||
|
"mov %%ax, %%es \n"
|
||||||
|
"mov %%ax, %%fs \n"
|
||||||
|
"mov %%ax, %%gs \n"
|
||||||
|
:: "i" (BOOT_DATA_SEG));
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Restore our stack and saved registers.
|
||||||
|
* Now we can safely execute C code again.
|
||||||
|
*/
|
||||||
|
|
||||||
|
asm volatile("mov %0, %%esp" ::"m" (BIOS_SHARED->esp));
|
||||||
|
asm volatile ("popa");
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Return here. The rest of this code is never run directly,
|
||||||
|
* but we need to prevent GCC from optimizing it out.
|
||||||
|
*/
|
||||||
|
asm volatile("jmp BIOSTrampolineEnd\n");
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This is a 16-bit assembly-language trampoline, relocated at
|
||||||
|
* runtime to low memory, which actually makes the BIOS call. It
|
||||||
|
* handles saving/restoring registers, and it switches in and out
|
||||||
|
* of real mode.
|
||||||
|
*
|
||||||
|
* This code is never run directly.
|
||||||
|
*/
|
||||||
|
|
||||||
|
asm volatile("BIOSTrampoline: .code16");
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Switch to our 16-bit data segment.
|
||||||
|
*/
|
||||||
|
asm volatile("movw %0, %%ax \n"
|
||||||
|
"movw %%ax, %%ds \n"
|
||||||
|
"movw %%ax, %%es \n"
|
||||||
|
"movw %%ax, %%ss \n"
|
||||||
|
:: "i" (BOOT_DATA16_SEG));
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Disable protected mode.
|
||||||
|
*/
|
||||||
|
asm volatile("movl %cr0, %eax \n"
|
||||||
|
"andl $(~1), %eax \n"
|
||||||
|
"movl %eax, %cr0 \n");
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Do another long jump to reset the real-mode %cs
|
||||||
|
* register to a valid paragraph number. Right now
|
||||||
|
* it's still a protected-mode-style selector index.
|
||||||
|
*
|
||||||
|
* XXX: I'm not sure how to do this address calculation cleanly.
|
||||||
|
* Currently I'm hardcoding the address of the relocated trampoline.
|
||||||
|
*/
|
||||||
|
asm volatile("ljmp $0, $(BIOSTrampolineCS16 - BIOSTrampoline + 0x7C00)\n"
|
||||||
|
"BIOSTrampolineCS16: \n");
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Set up the real-mode stack and %cs register.
|
||||||
|
*/
|
||||||
|
asm volatile("xorw %%ax, %%ax \n"
|
||||||
|
"mov %%ax, %%ss \n"
|
||||||
|
"mov %0, %%esp \n"
|
||||||
|
:: "i" (&BIOS_SHARED->stackTop[-sizeof(Regs)]));
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Pop Regs off the stack.
|
||||||
|
*/
|
||||||
|
asm volatile("pop %ds \n"
|
||||||
|
"pop %es \n"
|
||||||
|
"pop %eax \n" // Ignore EFLAGS value.
|
||||||
|
"popal \n");
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This interrupt instruction is a placeholder that gets
|
||||||
|
* patched at runtime (after relocation) to point to the
|
||||||
|
* right interrupt vector.
|
||||||
|
*/
|
||||||
|
asm volatile("BIOSTrampolineVector: \n"
|
||||||
|
"int $0xFF");
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Push Regs back onto the stack.
|
||||||
|
*/
|
||||||
|
asm volatile("pushal \n"
|
||||||
|
"pushfl \n"
|
||||||
|
"push %es \n"
|
||||||
|
"push %ds \n");
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Enable protected mode.
|
||||||
|
*/
|
||||||
|
asm volatile("movl %cr0, %eax \n"
|
||||||
|
"orl $1, %eax \n"
|
||||||
|
"movl %eax, %cr0 \n");
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Return via a long 16-to-32 bit jump.
|
||||||
|
*/
|
||||||
|
asm volatile("data32 ljmp %0, $BIOSReturn32 \n"
|
||||||
|
:: "i" (BOOT_CODE_SEG));
|
||||||
|
|
||||||
|
asm volatile("BIOSTrampolineEnd: .code32 \n");
|
||||||
|
}
|
||||||
|
|
||||||
|
extern struct {
|
||||||
|
uint16 limit;
|
||||||
|
uint32 base;
|
||||||
|
} PACKED IDTDesc;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* BIOS_Call --
|
||||||
|
*
|
||||||
|
* Make BIOS calls after boot, by temporarily switching
|
||||||
|
* back into real mode.
|
||||||
|
*
|
||||||
|
* This function relocates the trampoline and stack into
|
||||||
|
* real-mode-addressable low memory, then makes a 32-to-16-bit jump
|
||||||
|
* into the trampoline.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
BIOS_Call(uint8 vector, Regs *regs)
|
||||||
|
{
|
||||||
|
extern uint8 BIOSTrampoline[];
|
||||||
|
extern uint8 BIOSTrampolineVector[];
|
||||||
|
extern uint8 BIOSTrampolineEnd[];
|
||||||
|
const uint32 trampSize = (uint8*)BIOSTrampolineEnd - (uint8*)BIOSTrampoline;
|
||||||
|
const uint32 vectorOffset = (uint8*)BIOSTrampolineVector - (uint8*)BIOSTrampoline + 1;
|
||||||
|
|
||||||
|
Bool iFlag = Intr_Save();
|
||||||
|
Intr_Disable();
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Relocate the trampoline code itself.
|
||||||
|
*/
|
||||||
|
memcpy(BIOS_SHARED->trampoline, BIOSTrampoline, trampSize);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Save the 32-bit IDT descriptor, and set up a legacy 256-entry
|
||||||
|
* 16-bit IDT descriptor.
|
||||||
|
*/
|
||||||
|
asm volatile("sidt %0" : "=m" (BIOS_SHARED->idtr32));
|
||||||
|
BIOS_SHARED->idtr16.base = 0;
|
||||||
|
BIOS_SHARED->idtr16.limit = 0x3ff;
|
||||||
|
asm volatile("lidt %0" :: "m" (BIOS_SHARED->idtr16));
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Binary-patch the trampoline code with the right interrupt vector.
|
||||||
|
*/
|
||||||
|
BIOS_SHARED->trampoline[vectorOffset] = vector;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copy Regs onto the top of the 16-bit stack.
|
||||||
|
*/
|
||||||
|
memcpy(&BIOS_SHARED->stackTop[-sizeof *regs], regs, sizeof *regs);
|
||||||
|
|
||||||
|
BIOSCallInternal();
|
||||||
|
|
||||||
|
/* Copy Regs back */
|
||||||
|
memcpy(regs, &BIOS_SHARED->stackTop[-sizeof *regs], sizeof *regs);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Back to 32-bit IDT.
|
||||||
|
*/
|
||||||
|
asm volatile("lidt %0" :: "m" (BIOS_SHARED->idtr32));
|
||||||
|
|
||||||
|
Intr_Restore(iFlag);
|
||||||
|
}
|
||||||
176
lib/metalkit/bios.h
Normal file
176
lib/metalkit/bios.h
Normal file
|
|
@ -0,0 +1,176 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* bios.h - Make real-mode BIOS calls from protected mode.
|
||||||
|
* For simplicity and small size, this implementation
|
||||||
|
* switches back to real-mode rather than using virtual 8086
|
||||||
|
* mode. A v86 mode implementation may be more robust.
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __BIOS_H__
|
||||||
|
#define __BIOS_H__
|
||||||
|
|
||||||
|
#include "types.h"
|
||||||
|
#include "boot.h"
|
||||||
|
|
||||||
|
typedef struct Regs {
|
||||||
|
/*
|
||||||
|
* Subset of segment registers
|
||||||
|
*/
|
||||||
|
|
||||||
|
uint16 ds;
|
||||||
|
uint16 es;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* CPU flags (Saved on BIOS exit, ignored on entry)
|
||||||
|
*/
|
||||||
|
|
||||||
|
union {
|
||||||
|
uint16 flags;
|
||||||
|
uint32 eflags;
|
||||||
|
struct {
|
||||||
|
uint32 cf : 1;
|
||||||
|
uint32 reserved_0 : 1;
|
||||||
|
uint32 pf : 1;
|
||||||
|
uint32 reserved_1 : 1;
|
||||||
|
uint32 af : 1;
|
||||||
|
uint32 reserved_2 : 1;
|
||||||
|
uint32 zf : 1;
|
||||||
|
uint32 sf : 1;
|
||||||
|
uint32 tp : 1;
|
||||||
|
uint32 intf : 1;
|
||||||
|
uint32 df : 1;
|
||||||
|
uint32 of : 1;
|
||||||
|
uint32 iopl : 2;
|
||||||
|
uint32 nt : 1;
|
||||||
|
uint32 reserved_3 : 1;
|
||||||
|
uint32 rf : 1;
|
||||||
|
uint32 vm : 1;
|
||||||
|
uint32 vif : 1;
|
||||||
|
uint32 vip : 1;
|
||||||
|
uint32 id : 1;
|
||||||
|
uint32 reserved_4 : 10;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* General purpose 32-bit registers, in the order expected by
|
||||||
|
* pushad/popad. Note that while most BIOS routines need only the
|
||||||
|
* 16-bit portions of these registers, some 32-bit-aware routines
|
||||||
|
* use them even in real mode.
|
||||||
|
*/
|
||||||
|
|
||||||
|
union {
|
||||||
|
uint32 edi;
|
||||||
|
uint16 di;
|
||||||
|
};
|
||||||
|
union {
|
||||||
|
uint32 esi;
|
||||||
|
uint16 si;
|
||||||
|
};
|
||||||
|
union {
|
||||||
|
uint32 ebp;
|
||||||
|
uint16 bp;
|
||||||
|
};
|
||||||
|
union { // Saved on BIOS exit, ignored on entry
|
||||||
|
uint32 esp;
|
||||||
|
uint16 sp;
|
||||||
|
};
|
||||||
|
|
||||||
|
union {
|
||||||
|
uint32 ebx;
|
||||||
|
uint16 bx;
|
||||||
|
struct {
|
||||||
|
uint8 bl;
|
||||||
|
uint8 bh;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
union {
|
||||||
|
uint32 edx;
|
||||||
|
uint16 dx;
|
||||||
|
struct {
|
||||||
|
uint8 dl;
|
||||||
|
uint8 dh;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
union {
|
||||||
|
uint32 ecx;
|
||||||
|
uint16 cx;
|
||||||
|
struct {
|
||||||
|
uint8 cl;
|
||||||
|
uint8 ch;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
union {
|
||||||
|
uint32 eax;
|
||||||
|
uint16 ax;
|
||||||
|
struct {
|
||||||
|
uint8 al;
|
||||||
|
uint8 ah;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
} PACKED Regs;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This is the communication area between the real-mode BIOS
|
||||||
|
* and protected mode. Parts of it are used internally by this
|
||||||
|
* module, but the 'userdata' area is available to the caller.
|
||||||
|
*/
|
||||||
|
|
||||||
|
struct BIOSShared {
|
||||||
|
uint8 trampoline[512];
|
||||||
|
uint8 stack[4096];
|
||||||
|
uint8 stackTop[0];
|
||||||
|
uint32 esp;
|
||||||
|
struct {
|
||||||
|
uint16 limit;
|
||||||
|
uint32 base;
|
||||||
|
} PACKED idtr16, idtr32;
|
||||||
|
uint8 userdata[1024];
|
||||||
|
} PACKED;
|
||||||
|
|
||||||
|
#define BIOS_SHARED ((struct BIOSShared*) BOOT_REALMODE_SCRATCH)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Macros for converting between 32-bit and 16-bit near/far pointers.
|
||||||
|
*/
|
||||||
|
|
||||||
|
typedef uint32 far_ptr_t;
|
||||||
|
|
||||||
|
#define PTR_32_TO_NEAR(p, seg) ((uint16)((uint32)(p) - ((seg) << 4)))
|
||||||
|
#define PTR_NEAR_TO_32(seg, off) ((void*)((((uint32)(seg)) << 4) + ((uint32)(off))))
|
||||||
|
#define PTR_FAR_TO_32(p) PTR_NEAR_TO_32(p >> 16, p & 0xFFFF)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Public entry point.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void BIOS_Call(uint8 vector, Regs *regs);
|
||||||
|
|
||||||
|
#endif /* __BIOS_H__ */
|
||||||
586
lib/metalkit/boot.S
Normal file
586
lib/metalkit/boot.S
Normal file
|
|
@ -0,0 +1,586 @@
|
||||||
|
/*
|
||||||
|
* boot.S --
|
||||||
|
*
|
||||||
|
* This is a tiny but relatively featureful bootloader for
|
||||||
|
* 32-bit standalone apps and kernels. It compiles into one
|
||||||
|
* binary that can be used either stand-alone (loaded directly
|
||||||
|
* by the BIOS, from a floppy or USB disk image) or as a GNU
|
||||||
|
* Multiboot image, loaded by GRUB.
|
||||||
|
*
|
||||||
|
* This bootloader loads itself and the attached main program
|
||||||
|
* at 1MB, with the available portions of the first megabyte of
|
||||||
|
* RAM set up as stack space by default.
|
||||||
|
*
|
||||||
|
* This loader is capable of loading an arbitrarily big binary
|
||||||
|
* image from the boot device into high memory. If you're booting
|
||||||
|
* from a floppy, it can load the whole 1.44MB disk. If you're
|
||||||
|
* booting from USB, it can load any amount of data from the USB
|
||||||
|
* disk.
|
||||||
|
*
|
||||||
|
* This loader works by using the BIOS's disk services, so we
|
||||||
|
* should be able to read the whole binary image off of any device
|
||||||
|
* the BIOS knows how to boot from. Since we have only a tiny
|
||||||
|
* amount of buffer space, and we need to store the resulting image
|
||||||
|
* above the 1MB boundary, we have to keep switching back and forth
|
||||||
|
* between real mode and protected mode.
|
||||||
|
*
|
||||||
|
* To avoid device-specific CHS addressing madness, we require LBA
|
||||||
|
* mode to boot off of anything other than a 1.44MB floppy or a
|
||||||
|
* Multiboot loader. We try to use the INT 13h AH=42h "Extended Read
|
||||||
|
* Sectors From Drive" command, which uses LBA addressing. If this
|
||||||
|
* doesn't work, we fall back to floppy-disk-style CHS addressing.
|
||||||
|
*
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define ASM
|
||||||
|
#include "boot.h"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Constants that affect our early boot memory map.
|
||||||
|
*/
|
||||||
|
#define BIOS_START_ADDRESS 0x7C00 // Defined by the BIOS
|
||||||
|
#define EARLY_STACK_ADDRESS 0x2000 // In low DOS memory
|
||||||
|
#define SECTORS_AT_A_TIME 18 // Must equal CHS sectors per head
|
||||||
|
#define SECTOR_SIZE 512
|
||||||
|
#define DISK_BUFFER 0x2800
|
||||||
|
#define DISK_BUFFER_SIZE (SECTORS_AT_A_TIME * SECTOR_SIZE)
|
||||||
|
|
||||||
|
#define BIOS_PTR(x) (x - _start + BIOS_START_ADDRESS)
|
||||||
|
|
||||||
|
.section .boot
|
||||||
|
|
||||||
|
.global _start
|
||||||
|
|
||||||
|
/*
|
||||||
|
* External symbols. main() is self-explanatory, but these
|
||||||
|
* other symbols must be provided by the linker script. See
|
||||||
|
* "image.ld" for the actual partition size and LDT calculations.
|
||||||
|
*/
|
||||||
|
.extern main
|
||||||
|
.extern _end
|
||||||
|
.extern _edata
|
||||||
|
.extern _bss_size
|
||||||
|
.extern _stack
|
||||||
|
.extern _partition_chs_head
|
||||||
|
.extern _partition_chs_sector_byte
|
||||||
|
.extern _partition_chs_cylinder_byte
|
||||||
|
.extern _partition_blocks
|
||||||
|
.extern _ldt_byte0
|
||||||
|
.extern _ldt_byte1
|
||||||
|
.extern _ldt_byte2
|
||||||
|
.extern _ldt_byte3
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Other modules can optionally define an LDT in uninitialized
|
||||||
|
* memory. By default this LDT will be all zeroes, but this
|
||||||
|
* is a simple and code-size-efficient way of letting other
|
||||||
|
* Metalkit modules allocate segment descriptors when they
|
||||||
|
* need to.
|
||||||
|
*
|
||||||
|
* Note that we page-align the LDT. This isn't strictly
|
||||||
|
* necessary, but it might be useful for performance in
|
||||||
|
* some environments.
|
||||||
|
*/
|
||||||
|
.comm LDT, BOOT_LDT_SIZE, 4096
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This begins our 16-bit DOS MBR boot sector segment. This
|
||||||
|
* sits in the first 512 bytes of our floppy image, and it
|
||||||
|
* gets loaded by the BIOS at START_ADDRESS.
|
||||||
|
*
|
||||||
|
* Until we've loaded the memory image off of disk into
|
||||||
|
* its final location, this code is running at a different
|
||||||
|
* address than the linker is expecting. Any absolute
|
||||||
|
* addresses must be fixed up by the BIOS_PTR() macro.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.code16
|
||||||
|
_start:
|
||||||
|
ljmp $0, $BIOS_PTR(bios_main)
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* gnu_multiboot --
|
||||||
|
*
|
||||||
|
* GNU Multiboot header. This can come anywhere in the
|
||||||
|
* first 8192 bytes of the image file.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.p2align 2
|
||||||
|
.code32
|
||||||
|
gnu_multiboot:
|
||||||
|
|
||||||
|
#define MULTIBOOT_MAGIC 0x1BADB002
|
||||||
|
#define MULTIBOOT_FLAGS 0x00010000
|
||||||
|
|
||||||
|
.long MULTIBOOT_MAGIC
|
||||||
|
.long MULTIBOOT_FLAGS
|
||||||
|
.long -(MULTIBOOT_MAGIC + MULTIBOOT_FLAGS)
|
||||||
|
.long gnu_multiboot
|
||||||
|
.long _start
|
||||||
|
.long _edata
|
||||||
|
.long _end
|
||||||
|
.long entry32
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* String table, located in the boot sector.
|
||||||
|
*/
|
||||||
|
|
||||||
|
loading_str: .string "\r\nMETALKIT "
|
||||||
|
disk_error_str: .string " err!"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* bios_main --
|
||||||
|
*
|
||||||
|
* Main routine for our BIOS MBR based loader. We set up the
|
||||||
|
* stack, display some welcome text, then load the rest of
|
||||||
|
* the boot image from disk. We have to use real mode to
|
||||||
|
* call the BIOS's floppy driver, then protected mode to
|
||||||
|
* copy each disk block to its final location above the 1MB
|
||||||
|
* barrier.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.code16
|
||||||
|
bios_main:
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Early init: setup our stack and data segments, make sure
|
||||||
|
* interrupts are off.
|
||||||
|
*/
|
||||||
|
cli
|
||||||
|
xorw %ax, %ax
|
||||||
|
movw %ax, %ss
|
||||||
|
movw %ax, %ds
|
||||||
|
movw %ax, %es
|
||||||
|
movw $EARLY_STACK_ADDRESS, %sp
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Save parameters that the BIOS gave us via registers.
|
||||||
|
*/
|
||||||
|
mov %dl, BIOS_PTR(disk_drive)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Switch on the A20 gate, so we can access more than 1MB
|
||||||
|
* of memory. There are multiple ways to do this: The
|
||||||
|
* original way was to write to bit 1 of the keyboard
|
||||||
|
* controller's output port. There's also a bit on PS2
|
||||||
|
* System Control port A to enable A20.
|
||||||
|
*
|
||||||
|
* The keyboard controller method should always work, but
|
||||||
|
* it's kind of slow and it takes a lot of code space in
|
||||||
|
* our already-cramped bootloader. Instead, we ask the BIOS
|
||||||
|
* to enable A20.
|
||||||
|
*
|
||||||
|
* If your computer doesn't support this BIOS interface,
|
||||||
|
* you'll see our "err!" message before "METAL" appears.
|
||||||
|
*
|
||||||
|
* References:
|
||||||
|
* http://www.win.tue.nl/~aeb/linux/kbd/A20.html
|
||||||
|
*/
|
||||||
|
|
||||||
|
mov $0x2401, %ax // Enable A20
|
||||||
|
int $0x15
|
||||||
|
jc fatal_error
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Load our image, starting at the beginning of whatever disk
|
||||||
|
* the BIOS told us we booted from. The Disk Address Packet
|
||||||
|
* (DAP) has already been initialized statically.
|
||||||
|
*/
|
||||||
|
|
||||||
|
mov $BIOS_PTR(loading_str), %si
|
||||||
|
call print_str
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Fill our DISK_BUFFER, reading SECTORS_AT_A_TIME sectors.
|
||||||
|
*
|
||||||
|
* First, try to use LBA addressing. This is required in
|
||||||
|
* order to boot off of non-floppy devices, like USB drives.
|
||||||
|
*/
|
||||||
|
|
||||||
|
disk_copy_loop:
|
||||||
|
mov $0x42, %ah
|
||||||
|
mov BIOS_PTR(disk_drive), %dl
|
||||||
|
mov $BIOS_PTR(dap_buffer), %si
|
||||||
|
int $0x13
|
||||||
|
jnc disk_success
|
||||||
|
|
||||||
|
/*
|
||||||
|
* If LBA fails, fall back to old fashioned CHS addressing.
|
||||||
|
* This works everywhere, but only if we're on a 1.44MB floppy.
|
||||||
|
*/
|
||||||
|
|
||||||
|
mov $(0x0200 | SECTORS_AT_A_TIME), %ax
|
||||||
|
mov BIOS_PTR(chs_sector), %cx // Sector and cylinder
|
||||||
|
mov BIOS_PTR(disk_drive), %dx // Drive and head
|
||||||
|
mov $DISK_BUFFER, %bx
|
||||||
|
int $0x13
|
||||||
|
jnc disk_success
|
||||||
|
|
||||||
|
/*
|
||||||
|
* If both CHS and LBA fail, the error is fatal.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fatal_error:
|
||||||
|
mov $BIOS_PTR(disk_error_str), %si
|
||||||
|
call print_str
|
||||||
|
cli
|
||||||
|
hlt
|
||||||
|
|
||||||
|
disk_success:
|
||||||
|
mov $'.', %al
|
||||||
|
call print_char
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Enter protected mode, so we can copy this sector to
|
||||||
|
* memory above the 1MB boundary.
|
||||||
|
*
|
||||||
|
* Note that we reset CS, DS, and ES, but we don't
|
||||||
|
* modify the stack at all.
|
||||||
|
*/
|
||||||
|
|
||||||
|
cli
|
||||||
|
lgdt BIOS_PTR(bios_gdt_desc)
|
||||||
|
movl %cr0, %eax
|
||||||
|
orl $1, %eax
|
||||||
|
movl %eax, %cr0
|
||||||
|
ljmp $BOOT_CODE_SEG, $BIOS_PTR(copy_enter32)
|
||||||
|
.code32
|
||||||
|
copy_enter32:
|
||||||
|
movw $BOOT_DATA_SEG, %ax
|
||||||
|
movw %ax, %ds
|
||||||
|
movw %ax, %es
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copy the buffer to high memory.
|
||||||
|
*/
|
||||||
|
|
||||||
|
mov $DISK_BUFFER, %esi
|
||||||
|
mov BIOS_PTR(dest_address), %edi
|
||||||
|
mov $(DISK_BUFFER_SIZE / 4), %ecx
|
||||||
|
rep movsl
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Next...
|
||||||
|
*
|
||||||
|
* Even though the CHS and LBA addresses are mutually exclusive,
|
||||||
|
* there's no harm in incrementing them both. The LBA increment
|
||||||
|
* is pretty straightforward, but CHS is of course less so.
|
||||||
|
* We only support CHS on 1.44MB floppies. We always copy one
|
||||||
|
* head at a time (SECTORS_AT_A_TIME must equal 18), so we have
|
||||||
|
* to hop between disk head 0 and 1, and increment the cylinder
|
||||||
|
* on every other head.
|
||||||
|
*
|
||||||
|
* When we're done copying, branch to entry32 while we're
|
||||||
|
* still in protected mode. Also note that we do a long branch
|
||||||
|
* to its final address, not it's temporary BIOS_PTR() address.
|
||||||
|
*/
|
||||||
|
|
||||||
|
addl $DISK_BUFFER_SIZE, BIOS_PTR(dest_address)
|
||||||
|
addl $SECTORS_AT_A_TIME, BIOS_PTR(dap_sector)
|
||||||
|
|
||||||
|
xorb $1, BIOS_PTR(chs_head)
|
||||||
|
jnz same_cylinder
|
||||||
|
incb BIOS_PTR(chs_cylinder)
|
||||||
|
same_cylinder:
|
||||||
|
|
||||||
|
cmpl $_edata, BIOS_PTR(dest_address)
|
||||||
|
jl not_done_copying
|
||||||
|
ljmp $BOOT_CODE_SEG, $entry32
|
||||||
|
not_done_copying:
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Back to 16-bit mode for the next copy.
|
||||||
|
*
|
||||||
|
* To understand this code, it's important to know the difference
|
||||||
|
* between how segment registers are treated in protected-mode and
|
||||||
|
* in real-mode. Loading a segment register in PM is actually a
|
||||||
|
* request for the processor to fill the hidden portion of that
|
||||||
|
* segment register with data from the GDT. When we switch to
|
||||||
|
* real-mode, the segment registers change meaning (now they're
|
||||||
|
* paragraph offsets again) but that hidden portion of the
|
||||||
|
* register remains set.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* 1. Load protected-mode segment registers (CS, DS, ES) */
|
||||||
|
|
||||||
|
movw $BOOT_DATA16_SEG, %ax
|
||||||
|
movw %ax, %ds
|
||||||
|
movw %ax, %es
|
||||||
|
ljmp $BOOT_CODE16_SEG, $BIOS_PTR(copy_enter16)
|
||||||
|
|
||||||
|
/* (We're entering a 16-bit code segment now) */
|
||||||
|
.code16
|
||||||
|
copy_enter16:
|
||||||
|
|
||||||
|
/* 2. Disable protected mode */
|
||||||
|
|
||||||
|
movl %cr0, %eax
|
||||||
|
andl $(~1), %eax
|
||||||
|
movl %eax, %cr0
|
||||||
|
|
||||||
|
/*
|
||||||
|
* 3. Load real-mode segment registers. (CS, DS, ES)
|
||||||
|
*/
|
||||||
|
|
||||||
|
xorw %ax, %ax
|
||||||
|
movw %ax, %ds
|
||||||
|
movw %ax, %es
|
||||||
|
ljmp $0, $BIOS_PTR(disk_copy_loop)
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* print_char --
|
||||||
|
*
|
||||||
|
* Use the BIOS's TTY emulation to output one character, from %al.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.code16
|
||||||
|
print_char:
|
||||||
|
mov $0x0E, %ah
|
||||||
|
mov $0x0001, %bx
|
||||||
|
int $0x10
|
||||||
|
ret_label:
|
||||||
|
ret
|
||||||
|
|
||||||
|
/*
|
||||||
|
* print_str --
|
||||||
|
*
|
||||||
|
* Print a NUL-terminated string, starting at %si.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.code16
|
||||||
|
print_str:
|
||||||
|
lodsb
|
||||||
|
test %al, %al
|
||||||
|
jz ret_label
|
||||||
|
call print_char
|
||||||
|
jmp print_str
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* entry32 --
|
||||||
|
*
|
||||||
|
* Main 32-bit entry point. To be here, we require that:
|
||||||
|
*
|
||||||
|
* - We're running in protected mode
|
||||||
|
* - The A20 gate is enabled
|
||||||
|
* - The entire image is loaded at _start
|
||||||
|
*
|
||||||
|
* We jump directly here from GNU Multiboot loaders (like
|
||||||
|
* GRUB), and this is where we jump directly from our
|
||||||
|
* protected mode disk block copy routine after we've copied
|
||||||
|
* the lask block.
|
||||||
|
*
|
||||||
|
* We still need to set up our final stack and GDT.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.code32
|
||||||
|
entry32:
|
||||||
|
|
||||||
|
cli
|
||||||
|
|
||||||
|
lgdt boot_gdt_desc
|
||||||
|
movl %cr0, %eax
|
||||||
|
orl $1, %eax
|
||||||
|
movl %eax, %cr0
|
||||||
|
ljmp $BOOT_CODE_SEG, $entry32_gdt_done
|
||||||
|
entry32_gdt_done:
|
||||||
|
|
||||||
|
movw $BOOT_DATA_SEG, %ax
|
||||||
|
movw %ax, %ds
|
||||||
|
movw %ax, %ss
|
||||||
|
movw %ax, %es
|
||||||
|
movw %ax, %fs
|
||||||
|
movw %ax, %gs
|
||||||
|
mov $_stack, %esp
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Zero out the BSS segment.
|
||||||
|
*/
|
||||||
|
|
||||||
|
xor %eax, %eax
|
||||||
|
mov $_bss_size, %ecx
|
||||||
|
mov $_edata, %edi
|
||||||
|
rep stosb
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Set our LDT segment as the current LDT.
|
||||||
|
*/
|
||||||
|
mov $BOOT_LDT_SEG, %ax
|
||||||
|
lldt %ax
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Call main().
|
||||||
|
*
|
||||||
|
* If it returns, put the machine in a halt loop. We don't
|
||||||
|
* disable interrupts: if the main program is in fact done
|
||||||
|
* with, but the application is still doing useful work in its
|
||||||
|
* interrupt handlers, no reason to stop them.
|
||||||
|
*/
|
||||||
|
|
||||||
|
call main
|
||||||
|
halt_loop:
|
||||||
|
hlt
|
||||||
|
jmp halt_loop
|
||||||
|
|
||||||
|
/*
|
||||||
|
* boot_gdt --
|
||||||
|
*
|
||||||
|
* This is a Global Descriptor Table that gives us a
|
||||||
|
* code and data segment, with a flat memory model.
|
||||||
|
*
|
||||||
|
* See section 3.4.5 of the Intel IA32 software developer's manual.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.code32
|
||||||
|
.p2align 3
|
||||||
|
boot_gdt:
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This is BOOT_NULL_SEG, the unusable segment zero.
|
||||||
|
* Reuse this memory as bios_gdt_desc, a GDT descriptor
|
||||||
|
* which uses our pre-relocation (BIOS_PTR) GDT address.
|
||||||
|
*/
|
||||||
|
bios_gdt_desc:
|
||||||
|
.word (boot_gdt_end - boot_gdt - 1)
|
||||||
|
.long BIOS_PTR(boot_gdt)
|
||||||
|
.word 0 // Unused
|
||||||
|
|
||||||
|
.word 0xFFFF, 0x0000 // BOOT_CODE_SEG
|
||||||
|
.byte 0x00, 0x9A, 0xCF, 0x00
|
||||||
|
|
||||||
|
.word 0xFFFF, 0x0000 // BOOT_DATA_SEG
|
||||||
|
.byte 0x00, 0x92, 0xCF, 0x00
|
||||||
|
|
||||||
|
.word 0xFFFF, 0x0000 // BOOT_CODE16_SEG
|
||||||
|
.byte 0x00, 0x9A, 0x00, 0x00
|
||||||
|
|
||||||
|
.word 0xFFFF, 0x0000 // BOOT_DATA16_SEG
|
||||||
|
.byte 0x00, 0x92, 0x00, 0x00
|
||||||
|
|
||||||
|
.word 0xFFFF // BOOT_LDT_SEG
|
||||||
|
.byte _ldt_byte0
|
||||||
|
.byte _ldt_byte1
|
||||||
|
.byte _ldt_byte2
|
||||||
|
.byte 0x82, 0x40
|
||||||
|
.byte _ldt_byte3
|
||||||
|
boot_gdt_end:
|
||||||
|
|
||||||
|
boot_gdt_desc: // Uses final address
|
||||||
|
.word (boot_gdt_end - boot_gdt - 1)
|
||||||
|
.long boot_gdt
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* dap_buffer --
|
||||||
|
*
|
||||||
|
* The Disk Address Packet buffer holds the current LBA
|
||||||
|
* disk address. We pass this to BIOS INT 13h, and we
|
||||||
|
* statically initialize it here.
|
||||||
|
*
|
||||||
|
* Note that the DAP is only used in LBA mode, not CHS mode.
|
||||||
|
*
|
||||||
|
* References:
|
||||||
|
* http://en.wikipedia.org/wiki/INT_13
|
||||||
|
* #INT_13h_AH.3D42h:_Extended_Read_Sectors_From_Drive
|
||||||
|
*/
|
||||||
|
|
||||||
|
dap_buffer:
|
||||||
|
.byte 0x10 // DAP structure size
|
||||||
|
.byte 0x00 // (Unused)
|
||||||
|
.byte SECTORS_AT_A_TIME // Number of sectors to read
|
||||||
|
.byte 0x00 // (Unused)
|
||||||
|
.word DISK_BUFFER // Buffer offset
|
||||||
|
.word 0x00 // Buffer segment
|
||||||
|
dap_sector:
|
||||||
|
.long 0x00000000 // Disk sector number
|
||||||
|
.long 0x00000000
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Statically initialized disk addressing variables. The CHS
|
||||||
|
* address here is only used in CHS mode, not LBA mode, but
|
||||||
|
* the disk drive number and dest address are always used.
|
||||||
|
*/
|
||||||
|
chs_sector: // Order matters. Cylinder/sector and head/drive
|
||||||
|
.byte 0x01 // are packed into words together.
|
||||||
|
chs_cylinder:
|
||||||
|
.byte 0x00
|
||||||
|
disk_drive:
|
||||||
|
.byte 0x00
|
||||||
|
chs_head:
|
||||||
|
.byte 0x00
|
||||||
|
dest_address:
|
||||||
|
.long _start // Initial dest address for 16-to-32-bit copy.
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Partition table and Boot Signature --
|
||||||
|
*
|
||||||
|
* This must be at the end of the first 512-byte disk
|
||||||
|
* sector. The partition table marks the end of the
|
||||||
|
* portion of this binary which is loaded by the BIOS.
|
||||||
|
*
|
||||||
|
* Each partition record is 16 bytes.
|
||||||
|
*
|
||||||
|
* After installing Metalkit, a disk can be partitioned as
|
||||||
|
* long as the space used by the Metalkit binary itself is
|
||||||
|
* reserved. By default, we create a single "Non-FS data"
|
||||||
|
* partition which holds the Metalkit binary. Note that
|
||||||
|
* this default partition starts at sector 1 (the first
|
||||||
|
* sector) so it covers the entire Metalkit image including
|
||||||
|
* bootloader.
|
||||||
|
*
|
||||||
|
* Partitions 2 through 4 are unused, and must be all zero
|
||||||
|
* or fdisk will complain.
|
||||||
|
*
|
||||||
|
* References:
|
||||||
|
* http://en.wikipedia.org/wiki/Master_boot_record
|
||||||
|
*/
|
||||||
|
|
||||||
|
.org 0x1BE // Partition 1
|
||||||
|
boot_partition_table:
|
||||||
|
.byte 0x80 // Status (Bootable)
|
||||||
|
.byte 0x00 // First block (head, sector/cylinder, cylinder)
|
||||||
|
.byte 0x01
|
||||||
|
.byte 0x00
|
||||||
|
.byte 0xda // Partition type ("Non-FS data" in fdisk)
|
||||||
|
.byte _partition_chs_head // Last block (head, sector/cylinder, cylinder)
|
||||||
|
.byte _partition_chs_sector_byte
|
||||||
|
.byte _partition_chs_cylinder_byte
|
||||||
|
.long 0 // LBA of first sector
|
||||||
|
.long _partition_blocks // Number of blocks in partition
|
||||||
|
|
||||||
|
.org 0x1CE // Partition 2 (Unused)
|
||||||
|
.org 0x1DE // Partition 3 (Unused)
|
||||||
|
.org 0x1EE // Partition 4 (Unused)
|
||||||
|
.org 0x1FE // Boot signature
|
||||||
|
.byte 0x55, 0xAA // This marks the end of the 512-byte MBR.
|
||||||
59
lib/metalkit/boot.h
Normal file
59
lib/metalkit/boot.h
Normal file
|
|
@ -0,0 +1,59 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* boot.h - Definitions used by both the bootloader and
|
||||||
|
* the rest of the library. This file must be valid
|
||||||
|
* C and assembly.
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __BOOT_H__
|
||||||
|
#define __BOOT_H__
|
||||||
|
|
||||||
|
#define BOOT_NULL_SEG 0x00
|
||||||
|
#define BOOT_CODE_SEG 0x08
|
||||||
|
#define BOOT_DATA_SEG 0x10
|
||||||
|
#define BOOT_CODE16_SEG 0x18
|
||||||
|
#define BOOT_DATA16_SEG 0x20
|
||||||
|
#define BOOT_LDT_SEG 0x28
|
||||||
|
|
||||||
|
#define BOOT_LDT_ENTRIES 1024
|
||||||
|
#define BOOT_LDT_SIZE (BOOT_LDT_ENTRIES * 8)
|
||||||
|
|
||||||
|
/* Unused real-mode-accessable scratch memory. */
|
||||||
|
#define BOOT_REALMODE_SCRATCH 0x7C00
|
||||||
|
|
||||||
|
/*
|
||||||
|
* The bootloader defines an LDT table which can be modified
|
||||||
|
* by C code, for loading segments dynamically.
|
||||||
|
*/
|
||||||
|
#ifndef ASM
|
||||||
|
extern unsigned char LDT[BOOT_LDT_SIZE];
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /* __BOOT_H__ */
|
||||||
291
lib/metalkit/console.c
Normal file
291
lib/metalkit/console.c
Normal file
|
|
@ -0,0 +1,291 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* console.c - Abstract text console
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "types.h"
|
||||||
|
#include "console.h"
|
||||||
|
#include "intr.h"
|
||||||
|
|
||||||
|
ConsoleInterface gConsole;
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Console_WriteString --
|
||||||
|
*
|
||||||
|
* Write a NUL-terminated string.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
Console_WriteString(const char *str)
|
||||||
|
{
|
||||||
|
char c;
|
||||||
|
while ((c = *(str++))) {
|
||||||
|
Console_WriteChar(c);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Console_WriteUInt32 --
|
||||||
|
*
|
||||||
|
* Write a positive 32-bit integer with arbitrary base from 2 to
|
||||||
|
* 16, up to 'digits' characters long. If 'padding' is non-NUL,
|
||||||
|
* this character is used for leading digits that would be zero.
|
||||||
|
* If padding is NUL, leading digits are suppressed entierly.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
Console_WriteUInt32(uint32 num, int digits, char padding, int base, Bool suppressZero)
|
||||||
|
{
|
||||||
|
if (digits == 0) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
Console_WriteUInt32(num / base, digits - 1, padding, base, TRUE);
|
||||||
|
|
||||||
|
if (num == 0 && suppressZero) {
|
||||||
|
if (padding) {
|
||||||
|
Console_WriteChar(padding);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
uint8 digit = num % base;
|
||||||
|
Console_WriteChar(digit >= 10 ? digit - 10 + 'A' : digit + '0');
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Console_Format --
|
||||||
|
* Console_FormatV --
|
||||||
|
*
|
||||||
|
* Write a formatted string. This is for the most part a tiny
|
||||||
|
* subset of printf(). Supports the standard %c, %s, %d, %u,
|
||||||
|
* and %X specifiers.
|
||||||
|
*
|
||||||
|
* Deviates from a standard printf() in a few ways, in the interest
|
||||||
|
* of low-level utility and small code size:
|
||||||
|
*
|
||||||
|
* - Adds a nonstandard %b specifier, for binary numbers.
|
||||||
|
* - Width specifiers set an exact width, not a minimum width.
|
||||||
|
* - %x is treated as %X.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
Console_Format(const char *fmt, ...)
|
||||||
|
{
|
||||||
|
Console_FormatV(&fmt);
|
||||||
|
}
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
Console_FormatV(const char **args)
|
||||||
|
{
|
||||||
|
char c;
|
||||||
|
const char *fmt = *(args++);
|
||||||
|
|
||||||
|
while ((c = *(fmt++))) {
|
||||||
|
int width = 0;
|
||||||
|
Bool isSigned = FALSE;
|
||||||
|
char padding = '\0';
|
||||||
|
|
||||||
|
if (c != '%') {
|
||||||
|
Console_WriteChar(c);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
while ((c = *(fmt++))) {
|
||||||
|
if (c == '0' && width == 0) {
|
||||||
|
/* If we get a leading 0 in the width specifier, turn on zero-padding */
|
||||||
|
padding = '0';
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
if (c >= '0' && c <= '9') {
|
||||||
|
/* Add another digit to the width specifier */
|
||||||
|
width = (width * 10) + (c - '0');
|
||||||
|
if (padding == '\0') {
|
||||||
|
padding = ' ';
|
||||||
|
}
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Any other character means the width specifier has
|
||||||
|
* ended. If it's still zero, set the defaults.
|
||||||
|
*/
|
||||||
|
if (width == 0) {
|
||||||
|
width = 32;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Non-integer format specifiers
|
||||||
|
*/
|
||||||
|
|
||||||
|
if (c == 's') {
|
||||||
|
Console_WriteString((char*) *(args++));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if (c == 'c') {
|
||||||
|
Console_WriteChar((char)(uint32) *(args++));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Integers of different bases
|
||||||
|
*/
|
||||||
|
int base = 0;
|
||||||
|
|
||||||
|
if (c == 'X' || c == 'x') {
|
||||||
|
base = 16;
|
||||||
|
} else if (c == 'd') {
|
||||||
|
base = 10;
|
||||||
|
isSigned = TRUE;
|
||||||
|
} else if (c == 'u') {
|
||||||
|
base = 10;
|
||||||
|
} else if (c == 'b') {
|
||||||
|
base = 2;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (base) {
|
||||||
|
uint32 value = (uint32)*(args++);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Print the sign for negative numbers.
|
||||||
|
*/
|
||||||
|
if (isSigned && 0 > (int32)value) {
|
||||||
|
Console_WriteChar('-');
|
||||||
|
width--;
|
||||||
|
value = -value;
|
||||||
|
}
|
||||||
|
|
||||||
|
Console_WriteUInt32(value, width, padding, base, FALSE);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Unrecognized */
|
||||||
|
Console_WriteChar(c);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Console_HexDump --
|
||||||
|
*
|
||||||
|
* Write a 32-bit hex dump to the console, labelling each
|
||||||
|
* line with addresses starting at 'startAddr'.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
Console_HexDump(uint32 *data, uint32 startAddr, uint32 numWords)
|
||||||
|
{
|
||||||
|
while (numWords) {
|
||||||
|
int32 lineWords = 4;
|
||||||
|
Console_Format("%08x:", startAddr);
|
||||||
|
while (numWords && lineWords) {
|
||||||
|
Console_Format(" %08x", *data);
|
||||||
|
data++;
|
||||||
|
startAddr += 4;
|
||||||
|
numWords--;
|
||||||
|
lineWords--;
|
||||||
|
}
|
||||||
|
Console_WriteChar('\n');
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Console_UnhandledFault --
|
||||||
|
*
|
||||||
|
* Display a fatal error message with register and stack trace when
|
||||||
|
* an unhandled fault occurs. This fault handler must be installed
|
||||||
|
* using the Intr module.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
Console_UnhandledFault(int vector)
|
||||||
|
{
|
||||||
|
IntrContext *ctx = Intr_GetContext(vector);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Using a regular inline string constant, the linker can't
|
||||||
|
* optimize out this string when the function isn't used.
|
||||||
|
*/
|
||||||
|
static const char faultFmt[] =
|
||||||
|
"Fatal error:\n"
|
||||||
|
"Unhandled fault %d at %04x:%08x\n"
|
||||||
|
"\n"
|
||||||
|
"eax=%08x ebx=%08x ecx=%08x edx=%08x\n"
|
||||||
|
"esi=%08x edi=%08x esp=%08x ebp=%08x\n"
|
||||||
|
"eflags=%032b\n"
|
||||||
|
"\n";
|
||||||
|
|
||||||
|
Console_BeginPanic();
|
||||||
|
|
||||||
|
/*
|
||||||
|
* IntrContext's stack pointer includes the three values that were
|
||||||
|
* pushed by the hardware interrupt. Advance past these, so the
|
||||||
|
* stack trace shows the state of execution at the time of the
|
||||||
|
* fault rather than at the time our interrupt trampoline was
|
||||||
|
* invoked.
|
||||||
|
*/
|
||||||
|
ctx->esp += 3 * sizeof(int);
|
||||||
|
|
||||||
|
Console_Format(faultFmt,
|
||||||
|
vector, ctx->cs, ctx->eip,
|
||||||
|
ctx->eax, ctx->ebx, ctx->ecx, ctx->edx,
|
||||||
|
ctx->esi, ctx->edi, ctx->esp, ctx->ebp,
|
||||||
|
ctx->eflags);
|
||||||
|
|
||||||
|
Console_HexDump((void*)ctx->esp, ctx->esp, 64);
|
||||||
|
|
||||||
|
Console_Flush();
|
||||||
|
Intr_Disable();
|
||||||
|
Intr_Halt();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Console_Panic --
|
||||||
|
*
|
||||||
|
* Default panic handler. Prints a caller-defined message, and
|
||||||
|
* halts the machine.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
Console_Panic(const char *fmt, ...)
|
||||||
|
{
|
||||||
|
Console_BeginPanic();
|
||||||
|
Console_WriteString("Panic:\n");
|
||||||
|
Console_FormatV(&fmt);
|
||||||
|
Console_Flush();
|
||||||
|
Intr_Disable();
|
||||||
|
Intr_Halt();
|
||||||
|
}
|
||||||
63
lib/metalkit/console.h
Normal file
63
lib/metalkit/console.h
Normal file
|
|
@ -0,0 +1,63 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* console.h - Abstract text console
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __CONSOLE_H__
|
||||||
|
#define __CONSOLE_H__
|
||||||
|
|
||||||
|
#include "types.h"
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
fastcall void (*beginPanic)(void); // Initialize the console for a Panic message
|
||||||
|
fastcall void (*clear)(void); // Clear the screen, home the cursor
|
||||||
|
fastcall void (*moveTo)(int x, int y); // Move the cursor
|
||||||
|
fastcall void (*writeChar)(char c); // Write one character, with support for control codes
|
||||||
|
fastcall void (*flush)(void); // Finish writing a string of characters
|
||||||
|
} ConsoleInterface;
|
||||||
|
|
||||||
|
extern ConsoleInterface gConsole;
|
||||||
|
|
||||||
|
#define Console_BeginPanic() gConsole.beginPanic()
|
||||||
|
#define Console_Clear() gConsole.clear()
|
||||||
|
#define Console_MoveTo(x, y) gConsole.moveTo(x, y)
|
||||||
|
#define Console_WriteChar(c) gConsole.writeChar(c)
|
||||||
|
#define Console_Flush() gConsole.flush()
|
||||||
|
|
||||||
|
fastcall void Console_WriteString(const char *str);
|
||||||
|
fastcall void Console_WriteUInt32(uint32 num, int digits, char padding, int base, Bool suppressZero);
|
||||||
|
fastcall void Console_FormatV(const char **args);
|
||||||
|
fastcall void Console_HexDump(uint32 *data, uint32 startAddr, uint32 numWords);
|
||||||
|
|
||||||
|
void Console_Format(const char *fmt, ...);
|
||||||
|
void Console_Panic(const char *str, ...);
|
||||||
|
void Console_UnhandledFault(int number);
|
||||||
|
|
||||||
|
#endif /* __CONSOLE_H__ */
|
||||||
269
lib/metalkit/console_vga.c
Normal file
269
lib/metalkit/console_vga.c
Normal file
|
|
@ -0,0 +1,269 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* console_vga.c - Console driver for VGA text mode.
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "types.h"
|
||||||
|
#include "console_vga.h"
|
||||||
|
#include "io.h"
|
||||||
|
#include "intr.h"
|
||||||
|
|
||||||
|
#define VGA_TEXT_FRAMEBUFFER ((uint8*)0xB8000)
|
||||||
|
|
||||||
|
#define VGA_CRTCREG_CURSOR_LOC_HIGH 0x0E
|
||||||
|
#define VGA_CRTCREG_CURSOR_LOC_LOW 0x0F
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
uint16 crtc_iobase;
|
||||||
|
struct {
|
||||||
|
int8 x, y;
|
||||||
|
} cursor;
|
||||||
|
int8 attr;
|
||||||
|
} ConsoleVGAObject;
|
||||||
|
|
||||||
|
ConsoleVGAObject gConsoleVGA[1];
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ConsoleVGAWriteCRTC --
|
||||||
|
*
|
||||||
|
* Write to a VGA CRT Control register.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static fastcall void
|
||||||
|
ConsoleVGAWriteCRTC(uint8 addr, uint8 value)
|
||||||
|
{
|
||||||
|
ConsoleVGAObject *self = gConsoleVGA;
|
||||||
|
IO_Out8(self->crtc_iobase, addr);
|
||||||
|
IO_Out8(self->crtc_iobase + 1, value);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ConsoleVGAMoveHardwareCursor --
|
||||||
|
*
|
||||||
|
* Set the hardware cursor to the current cursor position.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static fastcall void
|
||||||
|
ConsoleVGAMoveHardwareCursor(void)
|
||||||
|
{
|
||||||
|
ConsoleVGAObject *self = gConsoleVGA;
|
||||||
|
uint16 loc = self->cursor.x + self->cursor.y * VGA_TEXT_WIDTH;
|
||||||
|
|
||||||
|
ConsoleVGAWriteCRTC(VGA_CRTCREG_CURSOR_LOC_LOW, loc & 0xFF);
|
||||||
|
ConsoleVGAWriteCRTC(VGA_CRTCREG_CURSOR_LOC_HIGH, loc >> 8);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ConsoleVGAMoveTo --
|
||||||
|
*
|
||||||
|
* Set the text insertion point. This will move the hardware cursor
|
||||||
|
* at the next Console_Flush().
|
||||||
|
*/
|
||||||
|
|
||||||
|
static fastcall void
|
||||||
|
ConsoleVGAMoveTo(int x, int y)
|
||||||
|
{
|
||||||
|
ConsoleVGAObject *self = gConsoleVGA;
|
||||||
|
|
||||||
|
self->cursor.x = x;
|
||||||
|
self->cursor.y = y;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ConsoleVGA_Clear --
|
||||||
|
*
|
||||||
|
* Clear the screen and move the cursor to the home position.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static fastcall void
|
||||||
|
ConsoleVGAClear(void)
|
||||||
|
{
|
||||||
|
ConsoleVGAObject *self = gConsoleVGA;
|
||||||
|
uint8 *fb = VGA_TEXT_FRAMEBUFFER;
|
||||||
|
int i, j;
|
||||||
|
|
||||||
|
ConsoleVGAMoveTo(0, 0);
|
||||||
|
|
||||||
|
for (j = 0; j < VGA_TEXT_HEIGHT; j++) {
|
||||||
|
for (i = 0; i < VGA_TEXT_WIDTH; i++) {
|
||||||
|
fb[0] = ' ';
|
||||||
|
fb[1] = self->attr;
|
||||||
|
fb += 2;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ConsoleVGA_SetColor --
|
||||||
|
*
|
||||||
|
* Set the text foreground color.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
ConsoleVGA_SetColor(int8 fgColor)
|
||||||
|
{
|
||||||
|
ConsoleVGAObject *self = gConsoleVGA;
|
||||||
|
|
||||||
|
self->attr &= 0xF0;
|
||||||
|
self->attr |= fgColor;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ConsoleVGA_SetColor --
|
||||||
|
*
|
||||||
|
* Set the text background color.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
ConsoleVGA_SetBgColor(int8 bgColor)
|
||||||
|
{
|
||||||
|
ConsoleVGAObject *self = gConsoleVGA;
|
||||||
|
|
||||||
|
self->attr &= 0x0F;
|
||||||
|
self->attr |= bgColor << 4;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ConsoleVGAWriteChar --
|
||||||
|
*
|
||||||
|
* Write one character, TTY-style. Interprets \n characters.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static fastcall void
|
||||||
|
ConsoleVGAWriteChar(char c)
|
||||||
|
{
|
||||||
|
ConsoleVGAObject *self = gConsoleVGA;
|
||||||
|
uint8 *fb = VGA_TEXT_FRAMEBUFFER;
|
||||||
|
|
||||||
|
if (c == '\n') {
|
||||||
|
self->cursor.y++;
|
||||||
|
self->cursor.x = 0;
|
||||||
|
|
||||||
|
} else if (c == '\t') {
|
||||||
|
while (self->cursor.x & 7) {
|
||||||
|
ConsoleVGAWriteChar(' ');
|
||||||
|
}
|
||||||
|
|
||||||
|
} else if (c == '\b') {
|
||||||
|
if (self->cursor.x > 0) {
|
||||||
|
self->cursor.x--;
|
||||||
|
ConsoleVGAWriteChar(' ');
|
||||||
|
self->cursor.x--;
|
||||||
|
}
|
||||||
|
|
||||||
|
} else {
|
||||||
|
fb += self->cursor.x * 2 + self->cursor.y * VGA_TEXT_WIDTH * 2;
|
||||||
|
fb[0] = c;
|
||||||
|
fb[1] = self->attr;
|
||||||
|
self->cursor.x++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (self->cursor.x >= VGA_TEXT_WIDTH) {
|
||||||
|
self->cursor.x = 0;
|
||||||
|
self->cursor.y++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (self->cursor.y >= VGA_TEXT_HEIGHT) {
|
||||||
|
int i;
|
||||||
|
uint8 *fb = VGA_TEXT_FRAMEBUFFER;
|
||||||
|
const uint32 scrollSize = VGA_TEXT_WIDTH * 2 * (VGA_TEXT_HEIGHT - 1);
|
||||||
|
|
||||||
|
self->cursor.y = VGA_TEXT_HEIGHT - 1;
|
||||||
|
|
||||||
|
memcpy(fb, fb + VGA_TEXT_WIDTH * 2, scrollSize);
|
||||||
|
fb += scrollSize;
|
||||||
|
for (i = 0; i < VGA_TEXT_WIDTH; i++) {
|
||||||
|
fb[0] = ' ';
|
||||||
|
fb[1] = self->attr;
|
||||||
|
fb += 2;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ConsoleVGABeginPanic --
|
||||||
|
*
|
||||||
|
* Prepare for a panic in VGA mode: Set up the panic colors,
|
||||||
|
* and clear the screen.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static fastcall void
|
||||||
|
ConsoleVGABeginPanic(void)
|
||||||
|
{
|
||||||
|
ConsoleVGA_SetColor(VGA_COLOR_WHITE);
|
||||||
|
ConsoleVGA_SetBgColor(VGA_COLOR_RED);
|
||||||
|
ConsoleVGAClear();
|
||||||
|
ConsoleVGAMoveHardwareCursor();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ConsoleVGA_Init --
|
||||||
|
*
|
||||||
|
* Perform first-time initialization for VGA text mode,
|
||||||
|
* set VGA as the current console driver, and clear the
|
||||||
|
* screen with a default color.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
ConsoleVGA_Init(void)
|
||||||
|
{
|
||||||
|
ConsoleVGAObject *self = gConsoleVGA;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Read the I/O address select bit, to determine where the CRTC
|
||||||
|
* registers are.
|
||||||
|
*/
|
||||||
|
if (IO_In8(0x3CC) & 1) {
|
||||||
|
self->crtc_iobase = 0x3D4;
|
||||||
|
} else {
|
||||||
|
self->crtc_iobase = 0x3B4;
|
||||||
|
}
|
||||||
|
|
||||||
|
gConsole.beginPanic = ConsoleVGABeginPanic;
|
||||||
|
gConsole.clear = ConsoleVGAClear;
|
||||||
|
gConsole.moveTo = ConsoleVGAMoveTo;
|
||||||
|
gConsole.writeChar = ConsoleVGAWriteChar;
|
||||||
|
gConsole.flush = ConsoleVGAMoveHardwareCursor;
|
||||||
|
|
||||||
|
ConsoleVGA_SetColor(VGA_COLOR_WHITE);
|
||||||
|
ConsoleVGA_SetBgColor(VGA_COLOR_BLUE);
|
||||||
|
|
||||||
|
ConsoleVGAClear();
|
||||||
|
ConsoleVGAMoveHardwareCursor();
|
||||||
|
}
|
||||||
63
lib/metalkit/console_vga.h
Normal file
63
lib/metalkit/console_vga.h
Normal file
|
|
@ -0,0 +1,63 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* console_vga.h - Console driver for VGA text mode.
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __CONSOLE_VGA_H__
|
||||||
|
#define __CONSOLE_VGA_H__
|
||||||
|
|
||||||
|
#include "types.h"
|
||||||
|
#include "console.h"
|
||||||
|
|
||||||
|
#define VGA_COLOR_BLACK 0
|
||||||
|
#define VGA_COLOR_BLUE 1
|
||||||
|
#define VGA_COLOR_GREEN 2
|
||||||
|
#define VGA_COLOR_CYAN 3
|
||||||
|
#define VGA_COLOR_RED 4
|
||||||
|
#define VGA_COLOR_MAGENTA 5
|
||||||
|
#define VGA_COLOR_BROWN 6
|
||||||
|
#define VGA_COLOR_LIGHT_GRAY 7
|
||||||
|
#define VGA_COLOR_DARK_GRAY 8
|
||||||
|
#define VGA_COLOR_LIGHT_BLUE 9
|
||||||
|
#define VGA_COLOR_LIGHT_GREEN 10
|
||||||
|
#define VGA_COLOR_LIGHT_CYAN 11
|
||||||
|
#define VGA_COLOR_LIGHT_RED 12
|
||||||
|
#define VGA_COLOR_LIGHT_MAGENTA 13
|
||||||
|
#define VGA_COLOR_YELLOW 14
|
||||||
|
#define VGA_COLOR_WHITE 15
|
||||||
|
|
||||||
|
#define VGA_TEXT_WIDTH 80
|
||||||
|
#define VGA_TEXT_HEIGHT 25
|
||||||
|
|
||||||
|
fastcall void ConsoleVGA_Init(void);
|
||||||
|
fastcall void ConsoleVGA_SetColor(int8 fgColor);
|
||||||
|
fastcall void ConsoleVGA_SetBgColor(int8 bgColor);
|
||||||
|
|
||||||
|
#endif /* __CONSOLE_VGA_H__ */
|
||||||
71
lib/metalkit/datafile.h
Normal file
71
lib/metalkit/datafile.h
Normal file
|
|
@ -0,0 +1,71 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* datafile.h - Macros for using raw data files included via objcopy.
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __DATAFILE_H__
|
||||||
|
#define __DATAFILE_H__
|
||||||
|
|
||||||
|
#include "types.h"
|
||||||
|
#include "puff.h"
|
||||||
|
|
||||||
|
typedef struct DataFile {
|
||||||
|
uint8 *ptr;
|
||||||
|
uint32 size;
|
||||||
|
} DataFile;
|
||||||
|
|
||||||
|
#define DECLARE_DATAFILE(symbol, filename) \
|
||||||
|
extern uint8 _binary_ ## filename ## _start[]; \
|
||||||
|
extern uint8 _binary_ ## filename ## _size[]; \
|
||||||
|
static const DataFile symbol[1] = {{ \
|
||||||
|
(uint8*) _binary_ ## filename ## _start, \
|
||||||
|
(uint32) _binary_ ## filename ## _size, \
|
||||||
|
}}
|
||||||
|
|
||||||
|
static inline uint32
|
||||||
|
DataFile_Decompress(const DataFile *f, void *buffer, uint32 bufferSize)
|
||||||
|
{
|
||||||
|
unsigned long sourcelen = f->size;
|
||||||
|
unsigned long destlen = bufferSize;
|
||||||
|
|
||||||
|
if (puff(buffer, &destlen, f->ptr, &sourcelen)) {
|
||||||
|
asm volatile ("int3");
|
||||||
|
}
|
||||||
|
|
||||||
|
return destlen;
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline uint32
|
||||||
|
DataFile_GetDecompressedSize(const DataFile *f)
|
||||||
|
{
|
||||||
|
return DataFile_Decompress(f, NULL, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif /* __DATAFILE_H_ */
|
||||||
25
lib/metalkit/deflate.py
Normal file
25
lib/metalkit/deflate.py
Normal file
|
|
@ -0,0 +1,25 @@
|
||||||
|
#!/usr/bin/env python
|
||||||
|
#
|
||||||
|
# A simple Python script to compress data
|
||||||
|
# with zlib's DEFLATE algorithm at build time.
|
||||||
|
#
|
||||||
|
|
||||||
|
import zlib, sys
|
||||||
|
|
||||||
|
level = 9
|
||||||
|
|
||||||
|
input = sys.stdin.read()
|
||||||
|
zData = zlib.compress(input, level)
|
||||||
|
|
||||||
|
# Strip off the zlib header, and return the raw DEFLATE data stream.
|
||||||
|
# See the zlib RFC: http://www.gzip.org/zlib/rfc-zlib.html
|
||||||
|
|
||||||
|
cmf = ord(zData[0])
|
||||||
|
flg = ord(zData[1])
|
||||||
|
assert (cmf & 0x0F) == 8 # DEFLATE algorithm
|
||||||
|
assert (flg & 0x20) == 0 # No preset dictionary
|
||||||
|
|
||||||
|
# Strip off 2-byte header and 4-byte checksum
|
||||||
|
rawData = zData[2:len(zData)-4]
|
||||||
|
|
||||||
|
sys.stdout.write(rawData)
|
||||||
48
lib/metalkit/gcc_support.c
Normal file
48
lib/metalkit/gcc_support.c
Normal file
|
|
@ -0,0 +1,48 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* gcc_support.c - Older versions of GCC will call functions for
|
||||||
|
* common operations like memcpy/memset instead of
|
||||||
|
* using compiler intrinsics. This file provides
|
||||||
|
* non-inlined memcpy/memset functions for this
|
||||||
|
* purpose, and it's a good place to put any other
|
||||||
|
* compiler-specific functionality.
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
void
|
||||||
|
memcpy(void *dest, const void *src, unsigned long size)
|
||||||
|
{
|
||||||
|
asm volatile ("cld; rep movsb" : "+c" (size), "+S" (src), "+D" (dest) :: "memory");
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
memset(void *dest, unsigned char value, unsigned long size)
|
||||||
|
{
|
||||||
|
asm volatile ("cld; rep stosb" : "+c" (size), "+D" (dest) : "a" (value) : "memory");
|
||||||
|
}
|
||||||
110
lib/metalkit/image.ld
Normal file
110
lib/metalkit/image.ld
Normal file
|
|
@ -0,0 +1,110 @@
|
||||||
|
/*
|
||||||
|
* GNU Linker script for assembling a Metalkit binary image.
|
||||||
|
*
|
||||||
|
* Notable changes from ld's default behaviour:
|
||||||
|
*
|
||||||
|
* - Load address is at the 1MB boundary.
|
||||||
|
*
|
||||||
|
* - Our binary begins with a .boot section.
|
||||||
|
*
|
||||||
|
* - The end of the data section is padded to a
|
||||||
|
* 512-byte boundary, to make sure that our disk
|
||||||
|
* image ends on a sector boundary. (Required by QEMU)
|
||||||
|
*
|
||||||
|
* - We calculate a few auxiliary values used by the
|
||||||
|
* bootloader, which depend on knowing the size of
|
||||||
|
* the entire binary.
|
||||||
|
*/
|
||||||
|
|
||||||
|
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
|
||||||
|
OUTPUT_ARCH(i386)
|
||||||
|
ENTRY(_start)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Stack starts at the top of the usable portion of the first 1MB, and
|
||||||
|
* grows downward.
|
||||||
|
*/
|
||||||
|
_stack = 0x9fffc;
|
||||||
|
|
||||||
|
SECTIONS
|
||||||
|
{
|
||||||
|
. = 0x100000;
|
||||||
|
|
||||||
|
.text : {
|
||||||
|
_file_origin = .;
|
||||||
|
*(.boot);
|
||||||
|
*(.text .text.*);
|
||||||
|
}
|
||||||
|
|
||||||
|
.data : {
|
||||||
|
*(.rodata .rodata.* .data .data.*)
|
||||||
|
_edata = .;
|
||||||
|
|
||||||
|
_sector_padding = .;
|
||||||
|
. = ALIGN(512);
|
||||||
|
_sector_padding_end = .;
|
||||||
|
}
|
||||||
|
|
||||||
|
.bss : {
|
||||||
|
__bss_start = .;
|
||||||
|
*(.bss .bss.*);
|
||||||
|
}
|
||||||
|
|
||||||
|
_end = .;
|
||||||
|
|
||||||
|
/DISCARD/ : {
|
||||||
|
*(.note .note.* .comment .comment.*);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
_bss_size = _end - _edata;
|
||||||
|
_image_size = _edata - _file_origin;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Disk geometry. CHS geometry is mostly irrelevant these days, so we
|
||||||
|
* just pick something that will make fdisk happy. It tries to
|
||||||
|
* autodetect the disk size by looking at the disk's existing
|
||||||
|
* partitions, so the easiest way to keep it happy is to align the
|
||||||
|
* partition to a cylinder boundary.
|
||||||
|
*
|
||||||
|
* We'd like to use a floppy-disk-compatible geometry for images that
|
||||||
|
* are small enough to fit on a 1.44 MB disk, but for larger images we
|
||||||
|
* need to use a bigger geometry so that our cylinder numbers can fit
|
||||||
|
* in 10 bits. This larger geometry has 1 megabyte cylinders, so we
|
||||||
|
* can address 1 GB without breaking the 10 bit boundary.
|
||||||
|
*/
|
||||||
|
|
||||||
|
_geom_large_disk = _image_size >= (2880 * 512);
|
||||||
|
_geom_sectors_per_head = _geom_large_disk ? 32 : 18;
|
||||||
|
_geom_heads_per_cylinder = _geom_large_disk ? 64 : 2;
|
||||||
|
_geom_sectors_per_cylinder = _geom_sectors_per_head * _geom_heads_per_cylinder;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Partition is just big enough to hold our initialized data, rounded
|
||||||
|
* up to the nearest cylinder. The "_partition_chs_cylinder" is the
|
||||||
|
* number of the last cylinder in the partition. Also note that
|
||||||
|
* sector numbers are 1-based.
|
||||||
|
*/
|
||||||
|
_image_sectors = (_image_size + 511) / 512;
|
||||||
|
_partition_chs_cylinder = _image_sectors / _geom_sectors_per_cylinder;
|
||||||
|
_partition_blocks = (_partition_chs_cylinder + 1) * _geom_sectors_per_cylinder;
|
||||||
|
_partition_chs_head = _geom_heads_per_cylinder - 1;
|
||||||
|
_partition_chs_sector = _geom_sectors_per_head;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Encode the sector and cylinder bytes in the format expected by MBR
|
||||||
|
* partition tables.
|
||||||
|
*/
|
||||||
|
_partition_chs_cylinder_byte = _partition_chs_cylinder & 0xff;
|
||||||
|
_partition_chs_sector_byte = _partition_chs_sector |
|
||||||
|
((_partition_chs_cylinder - _partition_chs_cylinder_byte) >> 2);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Split up the LDT address into byte-wide chunks, so we can write it
|
||||||
|
* into the GDT at link time. We can't do this entirely in boot.S,
|
||||||
|
* because the LDT address isn't contiguous in the GDT.
|
||||||
|
*/
|
||||||
|
_ldt_byte0 = (LDT >> 0) & 0xff;
|
||||||
|
_ldt_byte1 = (LDT >> 8) & 0xff;
|
||||||
|
_ldt_byte2 = (LDT >> 16) & 0xff;
|
||||||
|
_ldt_byte3 = (LDT >> 24) & 0xff;
|
||||||
419
lib/metalkit/intr.c
Normal file
419
lib/metalkit/intr.c
Normal file
|
|
@ -0,0 +1,419 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* intr.c - Interrupt vector management, interrupt routing,
|
||||||
|
* and low-level building blocks for multithreading.
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "intr.h"
|
||||||
|
#include "boot.h"
|
||||||
|
#include "io.h"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Definitions for the two PIC chips.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define PIC1_COMMAND_PORT 0x20
|
||||||
|
#define PIC1_DATA_PORT 0x21
|
||||||
|
#define PIC2_COMMAND_PORT 0xA0
|
||||||
|
#define PIC2_DATA_PORT 0xA1
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* IDT table and IDT table descriptor. The table itself lives in the
|
||||||
|
* BSS segment, the descriptor lives in the data segment.
|
||||||
|
*/
|
||||||
|
|
||||||
|
typedef union {
|
||||||
|
struct {
|
||||||
|
uint16 offsetLow;
|
||||||
|
uint16 segment;
|
||||||
|
uint16 flags;
|
||||||
|
uint16 offsetHigh;
|
||||||
|
};
|
||||||
|
struct {
|
||||||
|
uint32 offsetLowSeg;
|
||||||
|
uint32 flagsOffsetHigh;
|
||||||
|
};
|
||||||
|
} PACKED IDTType;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Note the IDT is page-aligned. Only 8-byte alignment is actually
|
||||||
|
* necessary, though page alignment may help performance in some
|
||||||
|
* environments.
|
||||||
|
*/
|
||||||
|
static IDTType ALIGNED(4096) IDT[NUM_INTR_VECTORS];
|
||||||
|
|
||||||
|
const struct {
|
||||||
|
uint16 limit;
|
||||||
|
void *address;
|
||||||
|
} PACKED IDTDesc = {
|
||||||
|
.limit = NUM_INTR_VECTORS * 8 - 1,
|
||||||
|
.address = IDT,
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* To save space, we don't include assembly-language trampolines for
|
||||||
|
* each interrupt vector. Instead, we allocate a table in the BSS
|
||||||
|
* segment which we can fill in at runtime with simple trampoline
|
||||||
|
* functions. This structure actually describes executable 32-bit
|
||||||
|
* code.
|
||||||
|
*/
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
uint16 code1;
|
||||||
|
uint32 arg;
|
||||||
|
uint8 code2;
|
||||||
|
IntrHandler handler;
|
||||||
|
uint32 code3;
|
||||||
|
uint32 code4;
|
||||||
|
uint32 code5;
|
||||||
|
uint32 code6;
|
||||||
|
uint32 code7;
|
||||||
|
uint32 code8;
|
||||||
|
} PACKED IntrTrampolineType;
|
||||||
|
|
||||||
|
static IntrTrampolineType ALIGNED(4) IntrTrampoline[NUM_INTR_VECTORS];
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* IntrDefaultHandler --
|
||||||
|
*
|
||||||
|
* Default no-op interrupt handler.
|
||||||
|
*/
|
||||||
|
|
||||||
|
static void
|
||||||
|
IntrDefaultHandler(int vector)
|
||||||
|
{
|
||||||
|
/* Do nothing. */
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Intr_Init --
|
||||||
|
*
|
||||||
|
* Initialize the interrupt descriptor table and the programmable
|
||||||
|
* interrupt controller (PIC). On return, interrupts are enabled
|
||||||
|
* but all handlers are no-ops.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
Intr_Init(void)
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
|
||||||
|
Intr_Disable();
|
||||||
|
|
||||||
|
IDTType *idt = IDT;
|
||||||
|
IntrTrampolineType *tramp = IntrTrampoline;
|
||||||
|
|
||||||
|
for (i = 0; i < NUM_INTR_VECTORS; i++) {
|
||||||
|
uint32 trampolineAddr = (uint32) tramp;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Set up the IDT entry as a 32-bit interrupt gate, pointing at
|
||||||
|
* our trampoline for this vector. Fill in the IDT with two 32-bit
|
||||||
|
* writes, since GCC generates significantly smaller code for this
|
||||||
|
* than when writing four 16-bit fields separately.
|
||||||
|
*/
|
||||||
|
|
||||||
|
idt->offsetLowSeg = (trampolineAddr & 0x0000FFFF) | (BOOT_CODE_SEG << 16);
|
||||||
|
idt->flagsOffsetHigh = (trampolineAddr & 0xFFFF0000) | 0x00008E00;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Set up the trampoline, pointing it at the default handler.
|
||||||
|
* The trampoline function wraps our C interrupt handler, and
|
||||||
|
* handles placing a vector number onto the stack. It also allows
|
||||||
|
* interrupt handlers to switch stacks upon return by writing
|
||||||
|
* to the saved 'esp' register.
|
||||||
|
*
|
||||||
|
* Note that the old stack and new stack may actually be different
|
||||||
|
* stack frames on the same stack. We require that the new stack
|
||||||
|
* is in a higher or equal stack frame, but the two stacks may
|
||||||
|
* overlap. This is why the trampoline does its copy in reverse.
|
||||||
|
*
|
||||||
|
* Keep the trampoline function consistent with the definition
|
||||||
|
* of IntrContext in intr.h.
|
||||||
|
*
|
||||||
|
* Stack layout:
|
||||||
|
*
|
||||||
|
* 8 eflags
|
||||||
|
* 4 cs
|
||||||
|
* 0 eip <- esp on entry to IRQ handler
|
||||||
|
* -4 eax
|
||||||
|
* -8 ecx
|
||||||
|
* -12 edx
|
||||||
|
* -16 ebx
|
||||||
|
* -20 esp
|
||||||
|
* -24 ebp
|
||||||
|
* -28 esi
|
||||||
|
* -32 edi
|
||||||
|
* -36 <arg> <- esp on entry to handler function
|
||||||
|
*
|
||||||
|
* Our trampolines each look like:
|
||||||
|
*
|
||||||
|
* 60 pusha // Save general-purpose regs
|
||||||
|
* 68 <32-bit arg> push <arg> // Call handler(arg)
|
||||||
|
* b8 <32-bit addr> mov <addr>, %eax
|
||||||
|
* ff d0 call *%eax
|
||||||
|
* 58 pop %eax // Remove arg from stack
|
||||||
|
* 8b 7c 24 0c mov 12(%esp), %edi // Load new stack address
|
||||||
|
* 8d 74 24 28 lea 40(%esp), %esi // Addr of eflags on old stack
|
||||||
|
* 83 c7 08 add $8, %edi // Addr of eflags on new stack
|
||||||
|
* fd std // Copy backwards
|
||||||
|
* a5 movsl // Copy eflags
|
||||||
|
* a5 movsl // Copy cs
|
||||||
|
* a5 movsl // Copy eip
|
||||||
|
* 61 popa // Restore general-purpose regs
|
||||||
|
* 8b 64 24 ec mov -20(%esp), %esp // Switch stacks
|
||||||
|
* cf iret // Restore eip, cs, eflags
|
||||||
|
*
|
||||||
|
* Note: Surprisingly enough, it's actually more size-efficient to initialize
|
||||||
|
* the structure in code like this than it is to memcpy() the trampoline from
|
||||||
|
* a template in the data segment.
|
||||||
|
*/
|
||||||
|
|
||||||
|
tramp->code1 = 0x6860;
|
||||||
|
tramp->code2 = 0xb8;
|
||||||
|
tramp->code3 = 0x8b58d0ff;
|
||||||
|
tramp->code4 = 0x8d0c247c;
|
||||||
|
tramp->code5 = 0x83282474;
|
||||||
|
tramp->code6 = 0xa5fd08c7;
|
||||||
|
tramp->code7 = 0x8b61a5a5;
|
||||||
|
tramp->code8 = 0xcfec2464;
|
||||||
|
|
||||||
|
tramp->handler = IntrDefaultHandler;
|
||||||
|
tramp->arg = i;
|
||||||
|
|
||||||
|
idt++;
|
||||||
|
tramp++;
|
||||||
|
}
|
||||||
|
|
||||||
|
asm volatile ("lidt IDTDesc");
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
uint8 port, data;
|
||||||
|
} PortData8;
|
||||||
|
|
||||||
|
static const PortData8 pitInit[] = {
|
||||||
|
/*
|
||||||
|
* Program the PIT to map all IRQs linearly starting at
|
||||||
|
* IRQ_VECTOR_BASE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
{ PIC1_COMMAND_PORT, 0x11 }, // Begin init, use 4 command words
|
||||||
|
{ PIC2_COMMAND_PORT, 0x11 },
|
||||||
|
{ PIC1_DATA_PORT, IRQ_VECTOR_BASE },
|
||||||
|
{ PIC2_DATA_PORT, IRQ_VECTOR_BASE + 8 },
|
||||||
|
{ PIC1_DATA_PORT, 0x04 },
|
||||||
|
{ PIC2_DATA_PORT, 0x02 },
|
||||||
|
{ PIC1_DATA_PORT, 0x03 }, // 8086 mode, auto-end-of-interrupt.
|
||||||
|
{ PIC2_DATA_PORT, 0x03 },
|
||||||
|
|
||||||
|
/*
|
||||||
|
* All IRQs start out masked, except for the cascade IRQs 2 and 4.
|
||||||
|
*/
|
||||||
|
{ PIC1_DATA_PORT, 0xEB },
|
||||||
|
{ PIC2_DATA_PORT, 0xFF },
|
||||||
|
};
|
||||||
|
|
||||||
|
const PortData8 *p = pitInit;
|
||||||
|
|
||||||
|
for (i = arraysize(pitInit); i; i--, p++) {
|
||||||
|
IO_Out8(p->port, p->data);
|
||||||
|
}
|
||||||
|
|
||||||
|
Intr_Enable();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Intr_SetHandler --
|
||||||
|
*
|
||||||
|
* Set a C-language interrupt handler for a particular vector.
|
||||||
|
* Note that the argument is a vector number, not an IRQ.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
Intr_SetHandler(int vector, IntrHandler handler)
|
||||||
|
{
|
||||||
|
IntrTrampoline[vector].handler = handler;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Intr_SetMask --
|
||||||
|
*
|
||||||
|
* (Un)mask a particular IRQ.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
Intr_SetMask(int irq, Bool enable)
|
||||||
|
{
|
||||||
|
uint8 port, bit, mask;
|
||||||
|
|
||||||
|
if (irq >= 8) {
|
||||||
|
bit = 1 << (irq - 8);
|
||||||
|
port = PIC2_DATA_PORT;
|
||||||
|
} else {
|
||||||
|
bit = 1 << irq;
|
||||||
|
port = PIC1_DATA_PORT;
|
||||||
|
}
|
||||||
|
|
||||||
|
mask = IO_In8(port);
|
||||||
|
|
||||||
|
/* A '1' bit in the mask inhibits the interrupt. */
|
||||||
|
if (enable) {
|
||||||
|
mask &= ~bit;
|
||||||
|
} else {
|
||||||
|
mask |= bit;
|
||||||
|
}
|
||||||
|
|
||||||
|
IO_Out8(port, mask);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Intr_SetFaultHandlers --
|
||||||
|
*
|
||||||
|
* Set all processor fault handlers to the provided function.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
Intr_SetFaultHandlers(IntrHandler handler)
|
||||||
|
{
|
||||||
|
int vector;
|
||||||
|
|
||||||
|
for (vector = 0; vector < NUM_FAULT_VECTORS; vector++) {
|
||||||
|
Intr_SetHandler(vector, handler);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Intr_InitContext --
|
||||||
|
*
|
||||||
|
* Create an IntrContext representing a brand new thread of
|
||||||
|
* execution. This can be used as a primitive to implement
|
||||||
|
* light-weight cooperative or pre-emptive multithreading.
|
||||||
|
*
|
||||||
|
* 'Stack' points to the initial value of the stack pointer.
|
||||||
|
* Stacks grow downward, so this should point to the top word of
|
||||||
|
* the allocated stack memory.
|
||||||
|
*/
|
||||||
|
|
||||||
|
fastcall void
|
||||||
|
Intr_InitContext(IntrContext *ctx, uint32 *stack, IntrContextFn main)
|
||||||
|
{
|
||||||
|
Intr_SaveContext(ctx);
|
||||||
|
ctx->esp = (uint32) stack;
|
||||||
|
ctx->eip = (uint32) main;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Intr_SaveContext --
|
||||||
|
*
|
||||||
|
* This is a C-callable function which constructs an
|
||||||
|
* IntrContext representing the current execution
|
||||||
|
* context. This is nearly equivalent to invoking
|
||||||
|
* software interrupt and saving the interrupt's
|
||||||
|
* IntrContext, but this implementation doesn't have the
|
||||||
|
* overhead of an actual interrupt invocation.
|
||||||
|
*/
|
||||||
|
|
||||||
|
asm (".global Intr_SaveContext \n Intr_SaveContext:"
|
||||||
|
|
||||||
|
"pusha \n"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Adjust the saved stack pointer. IntrContexts always
|
||||||
|
* store an %esp which has three words on the stack
|
||||||
|
* prior to the general-purpose regs, but since we don't
|
||||||
|
* use cs or eflags we only have 1.
|
||||||
|
*/
|
||||||
|
|
||||||
|
"sub $8, 12(%esp) \n"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* The stack now matches the layout of the first 9 words
|
||||||
|
* of IntrContext. Copy these, then manually save CS and
|
||||||
|
* eflags.
|
||||||
|
*/
|
||||||
|
|
||||||
|
"mov %esp, %esi \n"
|
||||||
|
"mov 36(%esp), %edi \n"
|
||||||
|
"mov $9, %ecx \n"
|
||||||
|
"rep movsl \n"
|
||||||
|
"xor %eax, %eax \n"
|
||||||
|
"mov %cs, %ax \n"
|
||||||
|
"stosl \n"
|
||||||
|
"pushf \n"
|
||||||
|
"pop %eax \n"
|
||||||
|
"stosl \n"
|
||||||
|
|
||||||
|
/* Return 0 when this function is called directly. */
|
||||||
|
|
||||||
|
"popa \n"
|
||||||
|
"xor %eax, %eax \n"
|
||||||
|
"ret" );
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Intr_RestoreContext --
|
||||||
|
*
|
||||||
|
* This is the inverse of Intr_SaveContext: copy the
|
||||||
|
* IntrContext onto the target context's stack frame,
|
||||||
|
* switch stacks, then restore the rest of the context's
|
||||||
|
* saved state.
|
||||||
|
*/
|
||||||
|
|
||||||
|
asm(".global Intr_RestoreContext \n Intr_RestoreContext:"
|
||||||
|
|
||||||
|
"mov 4(%esp), %esi \n" // Load pointer to IntrContext
|
||||||
|
"mov 12(%esi), %esp \n" // Switch stacks
|
||||||
|
|
||||||
|
/*
|
||||||
|
* esp was saved with 3 words on the stack (eip, cs, cflags).
|
||||||
|
* Position esp so we have 9 words instead. (General purpose
|
||||||
|
* regs plus eip, but no cs/eflags.)
|
||||||
|
*/
|
||||||
|
|
||||||
|
"sub $24, %esp \n"
|
||||||
|
|
||||||
|
// Copy the first 9 words of Intrcontext back onto the stack.
|
||||||
|
|
||||||
|
"mov %esp, %edi \n"
|
||||||
|
"mov $9, %ecx \n"
|
||||||
|
"rep movsl \n"
|
||||||
|
|
||||||
|
// Restore the general purpose regs and eip
|
||||||
|
|
||||||
|
"popa \n"
|
||||||
|
"ret" );
|
||||||
176
lib/metalkit/intr.h
Normal file
176
lib/metalkit/intr.h
Normal file
|
|
@ -0,0 +1,176 @@
|
||||||
|
/* -*- Mode: C; c-basic-offset: 3 -*-
|
||||||
|
*
|
||||||
|
* intr.h - Interrupt vector management and interrupt routing.
|
||||||
|
*
|
||||||
|
* This file is part of Metalkit, a simple collection of modules for
|
||||||
|
* writing software that runs on the bare metal. Get the latest code
|
||||||
|
* at http://svn.navi.cx/misc/trunk/metalkit/
|
||||||
|
*
|
||||||
|
* Copyright (c) 2008-2009 Micah Dowty
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person
|
||||||
|
* obtaining a copy of this software and associated documentation
|
||||||
|
* files (the "Software"), to deal in the Software without
|
||||||
|
* restriction, including without limitation the rights to use,
|
||||||
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
* copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following
|
||||||
|
* conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be
|
||||||
|
* included in all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||||
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||||
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||||
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||||
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||||
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __INTR_H__
|
||||||
|
#define __INTR_H__
|
||||||
|
|
||||||
|
#include "types.h"
|
||||||
|
|
||||||
|
#define NUM_INTR_VECTORS 256
|
||||||
|
#define NUM_FAULT_VECTORS 0x20
|
||||||
|
#define NUM_IRQ_VECTORS 0x10
|
||||||
|
#define IRQ_VECTOR_BASE NUM_FAULT_VECTORS
|
||||||
|
#define IRQ_VECTOR(irq) ((irq) + IRQ_VECTOR_BASE)
|
||||||
|
#define USER_VECTOR_BASE (IRQ_VECTOR_BASE + NUM_IRQ_VECTORS)
|
||||||
|
#define USER_VECTOR(n) ((n) + USER_VECTOR_BASE)
|
||||||
|
|
||||||
|
#define IRQ_TIMER 0
|
||||||
|
#define IRQ_KEYBOARD 1
|
||||||
|
|
||||||
|
#define FAULT_DE 0x00 // Divide error
|
||||||
|
#define FAULT_NMI 0x02 // Non-maskable interrupt
|
||||||
|
#define FAULT_BP 0x03 // Breakpoint
|
||||||
|
#define FAULT_OF 0x04 // Overflow
|
||||||
|
#define FAULT_BR 0x05 // Bound range
|
||||||
|
#define FAULT_UD 0x06 // Undefined opcode
|
||||||
|
#define FAULT_NM 0x07 // No FPU
|
||||||
|
#define FAULT_DF 0x08 // Double Fault
|
||||||
|
#define FAULT_TS 0x0A // Invalid TSS
|
||||||
|
#define FAULT_NP 0x0B // Segment not present
|
||||||
|
#define FAULT_SS 0x0C // Stack-segment fault
|
||||||
|
#define FAULT_GP 0x0D // General Protection Fault
|
||||||
|
#define FAULT_PF 0x0E // Page fault
|
||||||
|
#define FAULT_MF 0x10 // Math fault
|
||||||
|
#define FAULT_AC 0x11 // Alignment check
|
||||||
|
#define FAULT_MC 0x12 // Machine check
|
||||||
|
#define FAULT_XM 0x13 // SIMD floating point exception
|
||||||
|
|
||||||
|
typedef void (*IntrHandler)(int vector);
|
||||||
|
typedef void (*IntrContextFn)(void);
|
||||||
|
|
||||||
|
fastcall void Intr_Init(void);
|
||||||
|
fastcall void Intr_SetFaultHandlers(IntrHandler handler);
|
||||||
|
fastcall void Intr_SetHandler(int vector, IntrHandler handler);
|
||||||
|
fastcall void Intr_SetMask(int irq, Bool enable);
|
||||||
|
|
||||||
|
static inline void
|
||||||
|
Intr_Enable(void) {
|
||||||
|
asm volatile ("sti");
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline void
|
||||||
|
Intr_Disable(void) {
|
||||||
|
asm volatile ("cli");
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline Bool
|
||||||
|
Intr_Save(void) {
|
||||||
|
uint32 eflags;
|
||||||
|
asm volatile ("pushf; pop %0" : "=r" (eflags));
|
||||||
|
return (eflags & 0x200) != 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline void
|
||||||
|
Intr_Restore(Bool flag) {
|
||||||
|
if (flag) {
|
||||||
|
Intr_Enable();
|
||||||
|
} else {
|
||||||
|
Intr_Disable();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline void
|
||||||
|
Intr_Halt(void) {
|
||||||
|
asm volatile ("hlt");
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline void
|
||||||
|
Intr_Break(void) {
|
||||||
|
asm volatile ("int3");
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This structure describes all execution state that's saved when an
|
||||||
|
* interrupt or a setjmp occurs. In the case of an interrupt, this
|
||||||
|
* structure actually describes the stack frame of the interrupt
|
||||||
|
* trampoline.
|
||||||
|
*
|
||||||
|
* An interrupt handler can get a pointer to its IntrContext by
|
||||||
|
* passing its first argument to the Intr_GetContext macro. This
|
||||||
|
* allows an interrupt handler to examine the execution context in
|
||||||
|
* which the interrupt occurred, to modify the interrupt's return
|
||||||
|
* address, or even to implement input and output for OS traps.
|
||||||
|
*
|
||||||
|
* This module also provides functions for directly saving and
|
||||||
|
* restoring IntrContext structures. This can be used much like
|
||||||
|
* setjmp/longjmp, or it can even be used for simple cooperative or
|
||||||
|
* preemptive multithreading. An interrupt handler can perform a
|
||||||
|
* context switch by overwriting its IntrContext with a saved context.
|
||||||
|
*
|
||||||
|
* The definition of this structure must be kept in sync with the
|
||||||
|
* machine code in our interrupt trampolines, and with the
|
||||||
|
* assembly-language implementation of SaveContext and RestoreContext.
|
||||||
|
*/
|
||||||
|
|
||||||
|
typedef struct IntrContext {
|
||||||
|
/*
|
||||||
|
* General purpose registers. These are all saved after the value
|
||||||
|
* of %esp is captured.
|
||||||
|
*/
|
||||||
|
|
||||||
|
uint32 edi;
|
||||||
|
uint32 esi;
|
||||||
|
uint32 ebp;
|
||||||
|
uint32 esp;
|
||||||
|
uint32 ebx;
|
||||||
|
uint32 edx;
|
||||||
|
uint32 ecx;
|
||||||
|
uint32 eax;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* These values are save by the CPU during an interrupt. By
|
||||||
|
* convention, these values are at the top of the stack when %esp
|
||||||
|
* was saved.
|
||||||
|
*
|
||||||
|
* The values of cs and eflags are ignored by Intr_SaveContext
|
||||||
|
* and Intr_RestoreContext.
|
||||||
|
*/
|
||||||
|
|
||||||
|
uint32 eip;
|
||||||
|
uint32 cs;
|
||||||
|
uint32 eflags;
|
||||||
|
} IntrContext;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Always use the 'volatile' keyword when storing the result
|
||||||
|
* of Intr_GetContext. GCC can erroneously decide to optimize
|
||||||
|
* out any copies to this pointer, because it doesn't know the
|
||||||
|
* values will be used by our trampoline.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define Intr_GetContext(arg) ((IntrContext*) &(&arg)[1])
|
||||||
|
|
||||||
|
uint32 Intr_SaveContext(IntrContext *ctx);
|
||||||
|
void Intr_RestoreContext(IntrContext *ctx);
|
||||||
|
fastcall void Intr_InitContext(IntrContext *ctx, uint32 *stack, IntrContextFn main);
|
||||||
|
|
||||||
|
#endif /* __INTR_H__ */
|
||||||
Some files were not shown because too many files have changed in this diff Show more
Loading…
Reference in a new issue