1162 lines
41 KiB
C
1162 lines
41 KiB
C
/******************************Module*Header*******************************\
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*
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* *******************
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* * GDI SAMPLE CODE *
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* *******************
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*
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* Module Name: bltmm.c
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*
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* Contains the low-level memory-mapped IO blt functions. This module
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* mirrors 'bltio.c'.
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*
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* Hopefully, if you're basing your display driver on this code, to
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* support all of DrvBitBlt and DrvCopyBits, you'll only have to implement
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* the following routines. You shouldn't have to modify much in
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* 'bitblt.c'. I've tried to make these routines as few, modular, simple,
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* and efficient as I could, while still accelerating as many calls as
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* possible that would be cost-effective in terms of performance wins
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* versus size and effort.
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*
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* Note: In the following, 'relative' coordinates refers to coordinates
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* that haven't yet had the offscreen bitmap (DFB) offset applied.
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* 'Absolute' coordinates have had the offset applied. For example,
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* we may be told to blt to (1, 1) of the bitmap, but the bitmap may
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* be sitting in offscreen memory starting at coordinate (0, 768) --
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* (1, 1) would be the 'relative' start coordinate, and (1, 769)
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* would be the 'absolute' start coordinate'.
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*
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* Copyright (c) 1992-1998 Microsoft Corporation
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*
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\**************************************************************************/
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#include "precomp.h"
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/******************************Public*Routine******************************\
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* VOID vMmImageTransferMm16
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*
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* Low-level routine for transferring a bitmap image via the data transfer
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* register using 16 bit writes and entirely memory-mapped I/O.
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*
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* NOTE: Upon entry, there must be 1 guaranteed free empty FIFO!
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*
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\**************************************************************************/
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VOID vMmImageTransferMm16( // Type FNIMAGETRANSFER
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PDEV* ppdev,
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BYTE* pjSrc, // Source pointer
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LONG lDelta, // Delta from start of scan to start of next
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LONG cjSrc, // Number of bytes to be output on every scan
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LONG cScans, // Number of scans
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ULONG ulCmd) // Accelerator command - shouldn't include bus size
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{
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BYTE* pjMmBase;
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LONG cwSrc;
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ASSERTDD(cScans > 0, "Can't handle non-positive count of scans");
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ASSERTDD((ulCmd & (BUS_SIZE_8 | BUS_SIZE_16 | BUS_SIZE_32)) == 0,
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"Shouldn't specify bus size in command -- we handle that");
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IO_GP_WAIT(ppdev);
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pjMmBase = ppdev->pjMmBase;
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MM_CMD(ppdev, pjMmBase, ulCmd | BUS_SIZE_16);
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CHECK_DATA_READY(ppdev);
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cwSrc = (cjSrc) >> 1; // Floor
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if (cjSrc & 1)
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{
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do {
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if (cwSrc > 0)
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{
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MM_TRANSFER_WORD(ppdev, pjMmBase, pjSrc, cwSrc);
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}
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// Make sure we do only a byte read of the last odd byte
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// in the scan so that we'll never read past the end of
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// the bitmap:
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MM_PIX_TRANS(ppdev, pjMmBase, *(pjSrc + cjSrc - 1));
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pjSrc += lDelta;
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} while (--cScans != 0);
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}
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else
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{
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do {
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MM_TRANSFER_WORD(ppdev, pjMmBase, pjSrc, cwSrc);
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pjSrc += lDelta;
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} while (--cScans != 0);
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}
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CHECK_DATA_COMPLETE(ppdev);
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}
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/******************************Public*Routine******************************\
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* VOID vMmImageTransferMm32
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*
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* Low-level routine for transferring a bitmap image via the data transfer
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* register using 32 bit writes and entirely memory-mapped I/O.
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*
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* NOTE: Upon entry, there must be 1 guaranteed free empty FIFO!
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*
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\**************************************************************************/
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VOID vMmImageTransferMm32( // Type FNIMAGETRANSFER
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PDEV* ppdev,
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BYTE* pjSrc, // Source pointer
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LONG lDelta, // Delta from start of scan to start of next
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LONG cjSrc, // Number of bytes to be output on every scan
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LONG cScans, // Number of scans
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ULONG ulCmd) // Accelerator command - shouldn't include bus size
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{
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BYTE* pjMmBase;
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LONG cdSrc;
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LONG cjEnd;
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ULONG d;
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ASSERTDD(cScans > 0, "Can't handle non-positive count of scans");
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ASSERTDD((ulCmd & (BUS_SIZE_8 | BUS_SIZE_16 | BUS_SIZE_32)) == 0,
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"Shouldn't specify bus size in command -- we handle that");
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IO_GP_WAIT(ppdev);
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pjMmBase = ppdev->pjMmBase;
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MM_CMD(ppdev, pjMmBase, ulCmd | BUS_SIZE_32);
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CHECK_DATA_READY(ppdev);
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cdSrc = cjSrc >> 2;
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cjEnd = cdSrc << 2;
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switch (cjSrc & 3)
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{
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case 3:
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do {
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if (cdSrc > 0)
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MM_TRANSFER_DWORD(ppdev, pjMmBase, pjSrc, cdSrc);
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d = (ULONG) (*(pjSrc + cjEnd)) |
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(*(pjSrc + cjEnd + 1) << 8) |
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(*(pjSrc + cjEnd + 2) << 16);
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MM_TRANSFER_DWORD(ppdev, pjMmBase, &d, 1);
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pjSrc += lDelta;
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} while (--cScans != 0);
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break;
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case 2:
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do {
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if (cdSrc > 0)
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MM_TRANSFER_DWORD(ppdev, pjMmBase, pjSrc, cdSrc);
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d = (ULONG) (*(pjSrc + cjEnd)) |
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(*(pjSrc + cjEnd + 1) << 8);
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MM_TRANSFER_DWORD(ppdev, pjMmBase, &d, 1);
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pjSrc += lDelta;
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} while (--cScans != 0);
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break;
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case 1:
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do {
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if (cdSrc > 0)
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MM_TRANSFER_DWORD(ppdev, pjMmBase, pjSrc, cdSrc);
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d = (ULONG) (*(pjSrc + cjEnd));
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MM_TRANSFER_DWORD(ppdev, pjMmBase, &d, 1);
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pjSrc += lDelta;
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} while (--cScans != 0);
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break;
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case 0:
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do {
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MM_TRANSFER_DWORD(ppdev, pjMmBase, pjSrc, cdSrc);
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pjSrc += lDelta;
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} while (--cScans != 0);
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break;
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}
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CHECK_DATA_COMPLETE(ppdev);
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}
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/******************************Public*Routine******************************\
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* VOID vMmFillSolid
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*
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* Fills a list of rectangles with a solid colour.
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*
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\**************************************************************************/
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VOID vMmFillSolid( // Type FNFILL
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PDEV* ppdev,
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LONG c, // Can't be zero
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RECTL* prcl, // List of rectangles to be filled, in relative
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// coordinates
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ULONG rop4, // rop4
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RBRUSH_COLOR rbc, // Drawing colour is rbc.iSolidColor
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POINTL* pptlBrush) // Not used
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{
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BYTE* pjMmBase = ppdev->pjMmBase;
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ULONG ulHwForeMix;
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ASSERTDD(c > 0, "Can't handle zero rectangles");
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ulHwForeMix = gaulHwMixFromRop2[(rop4 >> 2) & 0xf];
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// It's quite likely that we've just been called from GDI, so it's
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// even more likely that the accelerator's graphics engine has been
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// sitting around idle. Rather than doing a FIFO_WAIT(3) here and
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// then a FIFO_WAIT(5) before outputing the actual rectangle,
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// we can avoid an 'in' (which can be quite expensive, depending on
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// the card) by doing a single FIFO_WAIT(8) right off the bat:
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IO_FIFO_WAIT(ppdev, 8);
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MM_PIX_CNTL(ppdev, pjMmBase, ALL_ONES);
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MM_FRGD_MIX(ppdev, pjMmBase, FOREGROUND_COLOR | ulHwForeMix);
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MM_FRGD_COLOR(ppdev, pjMmBase, rbc.iSolidColor);
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while(TRUE)
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{
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MM_CUR_X(ppdev, pjMmBase, prcl->left);
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MM_CUR_Y(ppdev, pjMmBase, prcl->top);
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MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, prcl->right - prcl->left - 1);
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MM_MIN_AXIS_PCNT(ppdev, pjMmBase, prcl->bottom - prcl->top - 1);
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MM_CMD(ppdev, pjMmBase, RECTANGLE_FILL | DRAWING_DIR_TBLRXM |
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DRAW | DIR_TYPE_XY |
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LAST_PIXEL_ON | MULTIPLE_PIXELS |
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WRITE);
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if (--c == 0)
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return;
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prcl++;
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IO_FIFO_WAIT(ppdev, 5);
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}
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}
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/******************************Public*Routine******************************\
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* VOID vMmFastPatRealize
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*
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* This routine transfers an 8x8 pattern to off-screen display memory,
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* so that it can be used by the S3 pattern hardware.
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*
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\**************************************************************************/
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VOID vMmFastPatRealize( // Type FNFASTPATREALIZE
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PDEV* ppdev,
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RBRUSH* prb, // Points to brush realization structure
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POINTL* pptlBrush, // Brush origin for aligning realization
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BOOL bTransparent) // FALSE for normal patterns; TRUE for
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// patterns with a mask when the background
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// mix is LEAVE_ALONE.
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{
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BRUSHENTRY* pbe;
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LONG iBrushCache;
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LONG x;
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LONG y;
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LONG i;
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LONG xShift;
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LONG yShift;
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BYTE* pjSrc;
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BYTE* pjDst;
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LONG cjLeft;
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LONG cjRight;
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BYTE* pjPattern;
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LONG cwPattern;
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ULONG aulBrush[TOTAL_BRUSH_SIZE];
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// Temporary buffer for aligning brush. Declared
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// as an array of ULONGs to get proper dword
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// alignment. Also leaves room for brushes that
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// are up to 32bpp. Note: this takes up 1/4k!
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BYTE* pjMmBase = ppdev->pjMmBase;
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ASSERTDD(!(bTransparent && ppdev->iBitmapFormat == BMF_24BPP),
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"s3 diamond 968 at 24bpp doesn't support transparent FastPatRealize");
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pbe = prb->pbe;
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if ((pbe == NULL) || (pbe->prbVerify != prb))
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{
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// We have to allocate a new off-screen cache brush entry for
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// the brush:
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iBrushCache = ppdev->iBrushCache;
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pbe = &ppdev->abe[iBrushCache];
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iBrushCache++;
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if (iBrushCache >= ppdev->cBrushCache)
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iBrushCache = 0;
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ppdev->iBrushCache = iBrushCache;
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// Update our links:
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pbe->prbVerify = prb;
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prb->pbe = pbe;
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}
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// Load some variables onto the stack, so that we don't have to keep
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// dereferencing their pointers:
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x = pbe->x;
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y = pbe->y;
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// Because we handle only 8x8 brushes, it is easy to compute the
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// number of pels by which we have to rotate the brush pattern
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// right and down. Note that if we were to handle arbitrary sized
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// patterns, this calculation would require a modulus operation.
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//
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// The brush is aligned in absolute coordinates, so we have to add
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// in the surface offset:
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xShift = pptlBrush->x + ppdev->xOffset;
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yShift = pptlBrush->y + ppdev->yOffset;
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prb->ptlBrushOrg.x = xShift; // We have to remember the alignment
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prb->ptlBrushOrg.y = yShift; // that we used for caching (we check
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// this when we go to see if a brush's
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// cache entry is still valid)
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xShift &= 7; // Rotate pattern 'xShift' pels right
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yShift &= 7; // Rotate pattern 'yShift' pels down
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prb->bTransparent = bTransparent;
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// I considered doing the colour expansion for 1bpp brushes in
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// software, but by letting the hardware do it, we don't have
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// to do as many OUTs to transfer the pattern.
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if (prb->fl & RBRUSH_2COLOR)
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{
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// We're going to do a colour-expansion ('across the plane')
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// bitblt of the 1bpp 8x8 pattern to the screen. But first
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// we'll align it properly by copying it to a temporary buffer
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// (which we'll conveniently pack word aligned so that we can do a
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// REP OUTSW...)
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pjSrc = (BYTE*) &prb->aulPattern[0]; // Copy from the start of the
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// brush buffer
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pjDst = (BYTE*) &aulBrush[0]; // Copy to our temp buffer
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pjDst += yShift * sizeof(WORD); // starting yShift rows down
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i = 8 - yShift; // for 8 - yShift rows
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do {
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*pjDst = (*pjSrc >> xShift) | (*pjSrc << (8 - xShift));
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pjDst += sizeof(WORD); // Destination is word packed
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pjSrc += sizeof(WORD); // Source is word aligned too
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} while (--i != 0);
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pjDst -= 8 * sizeof(WORD); // Move to the beginning of the source
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ASSERTDD(pjDst == (BYTE*) &aulBrush[0], "pjDst not back at start");
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for (; yShift != 0; yShift--)
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{
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*pjDst = (*pjSrc >> xShift) | (*pjSrc << (8 - xShift));
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pjDst += sizeof(WORD); // Destination is word packed
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pjSrc += sizeof(WORD); // Source is word aligned too
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}
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if (bTransparent)
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{
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IO_FIFO_WAIT(ppdev, 3);
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MM_PIX_CNTL(ppdev, pjMmBase, CPU_DATA);
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MM_FRGD_MIX(ppdev, pjMmBase, LOGICAL_1);
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MM_BKGD_MIX(ppdev, pjMmBase, LOGICAL_0);
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}
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else
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{
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IO_FIFO_WAIT(ppdev, 5);
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MM_PIX_CNTL(ppdev, pjMmBase, CPU_DATA);
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MM_FRGD_MIX(ppdev, pjMmBase, FOREGROUND_COLOR | OVERPAINT);
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MM_BKGD_MIX(ppdev, pjMmBase, BACKGROUND_COLOR | OVERPAINT);
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MM_FRGD_COLOR(ppdev, pjMmBase, prb->ulForeColor);
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MM_BKGD_COLOR(ppdev, pjMmBase, prb->ulBackColor);
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}
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IO_FIFO_WAIT(ppdev, 4);
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MM_ABS_CUR_X(ppdev, pjMmBase, x);
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MM_ABS_CUR_Y(ppdev, pjMmBase, y);
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MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, 7); // Brush is 8 wide
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MM_MIN_AXIS_PCNT(ppdev, pjMmBase, 7); // Brush is 8 high
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IO_GP_WAIT(ppdev);
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MM_CMD(ppdev, pjMmBase, RECTANGLE_FILL | BUS_SIZE_16 | WAIT |
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DRAWING_DIR_TBLRXM | DRAW | LAST_PIXEL_ON |
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MULTIPLE_PIXELS | WRITE | BYTE_SWAP);
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CHECK_DATA_READY(ppdev);
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pjPattern = (BYTE*) &aulBrush[0];
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MM_TRANSFER_WORD_ALIGNED(ppdev, pjMmBase, pjPattern, 8);
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// Each word transferred
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// comprises one row of the
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// pattern, and there are
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// 8 rows in the pattern
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CHECK_DATA_COMPLETE(ppdev);
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}
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else
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{
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ASSERTDD(!bTransparent,
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"Shouldn't have been asked for transparency with a non-1bpp brush");
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// We're going to do a straight ('through the plane') bitblt
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// of the Xbpp 8x8 pattern to the screen. But first we'll align
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// it properly by copying it to a temporary buffer:
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cjLeft = CONVERT_TO_BYTES(xShift, ppdev); // Number of bytes pattern
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// is shifted to the right
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cjRight = CONVERT_TO_BYTES(8, ppdev) - // Number of bytes pattern
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cjLeft; // is shifted to the left
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pjSrc = (BYTE*) &prb->aulPattern[0]; // Copy from brush buffer
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pjDst = (BYTE*) &aulBrush[0]; // Copy to our temp buffer
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pjDst += yShift * CONVERT_TO_BYTES(8, ppdev); // starting yShift rows
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i = 8 - yShift; // down for 8 - yShift rows
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do {
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RtlCopyMemory(pjDst + cjLeft, pjSrc, cjRight);
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RtlCopyMemory(pjDst, pjSrc + cjRight, cjLeft);
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pjDst += cjLeft + cjRight;
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pjSrc += cjLeft + cjRight;
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} while (--i != 0);
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pjDst = (BYTE*) &aulBrush[0]; // Move to the beginning of destination
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for (; yShift != 0; yShift--)
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{
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RtlCopyMemory(pjDst + cjLeft, pjSrc, cjRight);
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RtlCopyMemory(pjDst, pjSrc + cjRight, cjLeft);
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pjDst += cjLeft + cjRight;
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pjSrc += cjLeft + cjRight;
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}
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IO_FIFO_WAIT(ppdev, 6);
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MM_PIX_CNTL(ppdev, pjMmBase, ALL_ONES);
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MM_FRGD_MIX(ppdev, pjMmBase, SRC_CPU_DATA | OVERPAINT);
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MM_ABS_CUR_X(ppdev, pjMmBase, x);
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MM_ABS_CUR_Y(ppdev, pjMmBase, y);
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MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, 7); // Brush is 8 wide
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MM_MIN_AXIS_PCNT(ppdev, pjMmBase, 7); // Brush is 8 high
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IO_GP_WAIT(ppdev);
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MM_CMD(ppdev, pjMmBase, RECTANGLE_FILL | BUS_SIZE_16| WAIT |
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DRAWING_DIR_TBLRXM | DRAW | LAST_PIXEL_ON |
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SINGLE_PIXEL | WRITE | BYTE_SWAP);
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CHECK_DATA_READY(ppdev);
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pjPattern = (BYTE*) &aulBrush[0];
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cwPattern = CONVERT_TO_BYTES((TOTAL_BRUSH_SIZE / 2), ppdev);
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MM_TRANSFER_WORD_ALIGNED(ppdev, pjMmBase, pjPattern, cwPattern);
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CHECK_DATA_COMPLETE(ppdev);
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}
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}
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/******************************Public*Routine******************************\
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|
* VOID vMmFillPatFast
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*
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|
* This routine uses the S3 pattern hardware to draw a patterned list of
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* rectangles.
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*
|
|
\**************************************************************************/
|
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|
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VOID vMmFillPatFast( // Type FNFILL
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PDEV* ppdev,
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LONG c, // Can't be zero
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|
RECTL* prcl, // List of rectangles to be filled, in relative
|
|
// coordinates
|
|
ULONG rop4, // rop4
|
|
RBRUSH_COLOR rbc, // rbc.prb points to brush realization structure
|
|
POINTL* pptlBrush) // Pattern alignment
|
|
{
|
|
BOOL bTransparent;
|
|
ULONG ulHwForeMix;
|
|
BRUSHENTRY* pbe; // Pointer to brush entry data, which is used
|
|
// for keeping track of the location and status
|
|
// of the pattern bits cached in off-screen
|
|
// memory
|
|
|
|
BYTE* pjMmBase = ppdev->pjMmBase;
|
|
|
|
ASSERTDD(c > 0, "Can't handle zero rectangles");
|
|
ASSERTDD(ppdev->flCaps & CAPS_HW_PATTERNS,
|
|
"Shouldn't use fast patterns when can't do hw patterns");
|
|
|
|
bTransparent = (((rop4 >> 8) & 0xff) != (rop4 & 0xff));
|
|
|
|
// The S3's pattern hardware requires that we keep an aligned copy
|
|
// of the brush in off-screen memory. We have to update this
|
|
// realization if any of the following are true:
|
|
//
|
|
// 1) The brush alignment has changed;
|
|
// 2) The off-screen location we thought we had reserved for our
|
|
// realization got overwritten by a different pattern;
|
|
// 3) We had realized the pattern to do transparent hatches, but
|
|
// we're now being asked to do an opaque pattern, or vice
|
|
// versa (since we use different realizations for transparent
|
|
// vs. opaque patterns).
|
|
//
|
|
// To handle the initial realization of a pattern, we're a little
|
|
// tricky in order to save an 'if' in the following expression. In
|
|
// DrvRealizeBrush, we set 'prb->ptlBrushOrg.x' to be 0x80000000 (a
|
|
// very negative number), which is guaranteed not to equal 'pptlBrush->x
|
|
// + ppdev->xOffset'. So our check for brush alignment will also
|
|
// handle the initialization case (note that this check must occur
|
|
// *before* dereferencing 'prb->pbe' because that pointer will be
|
|
// NULL for a new pattern).
|
|
|
|
if ((rbc.prb->ptlBrushOrg.x != pptlBrush->x + ppdev->xOffset) ||
|
|
(rbc.prb->ptlBrushOrg.y != pptlBrush->y + ppdev->yOffset) ||
|
|
(rbc.prb->pbe->prbVerify != rbc.prb) ||
|
|
(rbc.prb->bTransparent != bTransparent))
|
|
{
|
|
vMmFastPatRealize(ppdev, rbc.prb, pptlBrush, bTransparent);
|
|
}
|
|
else if (ppdev->flCaps & CAPS_RE_REALIZE_PATTERN)
|
|
{
|
|
// The initial revs of the Vision chips have a bug where, if
|
|
// we have not just drawn the pattern to off-screen memory,
|
|
// we have to draw some sort of 1x8 rectangle before using
|
|
// the pattern hardware (note that a LEAVE_ALONE rop will not
|
|
// work).
|
|
|
|
IO_FIFO_WAIT(ppdev, 7);
|
|
|
|
MM_PIX_CNTL(ppdev, pjMmBase, ALL_ONES);
|
|
MM_FRGD_MIX(ppdev, pjMmBase, SRC_DISPLAY_MEMORY | OVERPAINT);
|
|
MM_ABS_CUR_X(ppdev, pjMmBase, ppdev->ptlReRealize.x);
|
|
MM_ABS_CUR_Y(ppdev, pjMmBase, ppdev->ptlReRealize.y);
|
|
MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, 0);
|
|
MM_MIN_AXIS_PCNT(ppdev, pjMmBase, 7);
|
|
MM_CMD(ppdev, pjMmBase, RECTANGLE_FILL | DRAWING_DIR_TBLRXM |
|
|
DRAW | DIR_TYPE_XY |
|
|
LAST_PIXEL_ON | MULTIPLE_PIXELS |
|
|
WRITE);
|
|
}
|
|
|
|
ASSERTDD(rbc.prb->bTransparent == bTransparent,
|
|
"Not realized with correct transparency");
|
|
|
|
pbe = rbc.prb->pbe;
|
|
|
|
ulHwForeMix = gaulHwMixFromRop2[(rop4 >> 2) & 0xf];
|
|
|
|
if (!bTransparent)
|
|
{
|
|
IO_FIFO_WAIT(ppdev, 4);
|
|
|
|
MM_ABS_CUR_X(ppdev, pjMmBase, pbe->x);
|
|
MM_ABS_CUR_Y(ppdev, pjMmBase, pbe->y);
|
|
MM_PIX_CNTL(ppdev, pjMmBase, ALL_ONES);
|
|
MM_FRGD_MIX(ppdev, pjMmBase, SRC_DISPLAY_MEMORY | ulHwForeMix);
|
|
}
|
|
else
|
|
{
|
|
IO_FIFO_WAIT(ppdev, 7);
|
|
MM_FRGD_COLOR(ppdev, pjMmBase, rbc.prb->ulForeColor);
|
|
MM_RD_MASK(ppdev, pjMmBase, 1); // Pick a plane, any plane
|
|
MM_ABS_CUR_X(ppdev, pjMmBase, pbe->x);
|
|
MM_ABS_CUR_Y(ppdev, pjMmBase, pbe->y);
|
|
MM_PIX_CNTL(ppdev, pjMmBase, DISPLAY_MEMORY);
|
|
MM_FRGD_MIX(ppdev, pjMmBase, FOREGROUND_COLOR | ulHwForeMix);
|
|
MM_BKGD_MIX(ppdev, pjMmBase, BACKGROUND_COLOR | LEAVE_ALONE);
|
|
}
|
|
|
|
do {
|
|
IO_FIFO_WAIT(ppdev, 5);
|
|
|
|
MM_DEST_X(ppdev, pjMmBase, prcl->left);
|
|
MM_DEST_Y(ppdev, pjMmBase, prcl->top);
|
|
MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, prcl->right - prcl->left - 1);
|
|
MM_MIN_AXIS_PCNT(ppdev, pjMmBase, prcl->bottom - prcl->top - 1);
|
|
MM_CMD(ppdev, pjMmBase, PATTERN_FILL | BYTE_SWAP | DRAWING_DIR_TBLRXM |
|
|
DRAW | WRITE);
|
|
|
|
prcl++;
|
|
} while (--c != 0);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* VOID vMmXfer1bpp
|
|
*
|
|
* This routine colour expands a monochrome bitmap, possibly with different
|
|
* Rop2's for the foreground and background. It will be called in the
|
|
* following cases:
|
|
*
|
|
* 1) To colour-expand the monochrome text buffer for the vFastText routine.
|
|
* 2) To blt a 1bpp source with a simple Rop2 between the source and
|
|
* destination.
|
|
* 3) To blt a true Rop3 when the source is a 1bpp bitmap that expands to
|
|
* white and black, and the pattern is a solid colour.
|
|
* 4) To handle a true Rop4 that works out to be two Rop2's between the
|
|
* pattern and destination.
|
|
*
|
|
* Needless to say, making this routine fast can leverage a lot of
|
|
* performance.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
VOID vMmXfer1bpp( // Type FNXFER
|
|
PDEV* ppdev,
|
|
LONG c, // Count of rectangles, can't be zero
|
|
RECTL* prcl, // List of destination rectangles, in relative
|
|
// coordinates
|
|
ROP4 rop4, // rop4
|
|
SURFOBJ* psoSrc, // Source surface
|
|
POINTL* pptlSrc, // Original unclipped source point
|
|
RECTL* prclDst, // Original unclipped destination rectangle
|
|
XLATEOBJ* pxlo) // Translate that provides colour-expansion information
|
|
{
|
|
ULONG ulHwForeMix;
|
|
ULONG ulHwBackMix;
|
|
LONG dxSrc;
|
|
LONG dySrc;
|
|
LONG cx;
|
|
LONG cy;
|
|
LONG lSrcDelta;
|
|
BYTE* pjSrcScan0;
|
|
BYTE* pjSrc;
|
|
LONG cjSrc;
|
|
LONG xLeft;
|
|
LONG yTop;
|
|
LONG xBias;
|
|
BYTE* pjMmBase = ppdev->pjMmBase;
|
|
|
|
ASSERTDD(c > 0, "Can't handle zero rectangles");
|
|
ASSERTDD(pptlSrc != NULL && psoSrc != NULL, "Can't have NULL sources");
|
|
ASSERTDD(((((rop4 & 0xff00) >> 8) == (rop4 & 0xff)) || (rop4 == 0xaacc)),
|
|
"Expect weird rops only when opaquing");
|
|
|
|
// Note that only our text routine calls us with a '0xaacc' rop:
|
|
|
|
ulHwForeMix = gaulHwMixFromRop2[rop4 & 0xf];
|
|
ulHwBackMix = (rop4 != 0xaacc) ? ulHwForeMix : LEAVE_ALONE;
|
|
|
|
IO_FIFO_WAIT(ppdev, 5);
|
|
|
|
MM_PIX_CNTL(ppdev, pjMmBase, CPU_DATA);
|
|
MM_FRGD_MIX(ppdev, pjMmBase, FOREGROUND_COLOR | ulHwForeMix);
|
|
MM_BKGD_MIX(ppdev, pjMmBase, BACKGROUND_COLOR | ulHwBackMix);
|
|
MM_FRGD_COLOR(ppdev, pjMmBase, pxlo->pulXlate[1]);
|
|
MM_BKGD_COLOR(ppdev, pjMmBase, pxlo->pulXlate[0]);
|
|
|
|
dxSrc = pptlSrc->x - prclDst->left;
|
|
dySrc = pptlSrc->y - prclDst->top; // Add to destination to get source
|
|
|
|
lSrcDelta = psoSrc->lDelta;
|
|
pjSrcScan0 = psoSrc->pvScan0;
|
|
|
|
do {
|
|
IO_FIFO_WAIT(ppdev, 5);
|
|
|
|
// We'll byte align to the source, but do word transfers
|
|
// (implying that we may be doing unaligned reads from the
|
|
// source). We do this because it may reduce the total
|
|
// number of word outs/writes that we'll have to do to the
|
|
// display:
|
|
|
|
yTop = prcl->top;
|
|
xLeft = prcl->left;
|
|
|
|
xBias = (xLeft + dxSrc) & 7; // This is the byte-align bias
|
|
if (xBias != 0)
|
|
{
|
|
// We could either align in software or use the hardware to do
|
|
// it. We'll use the hardware; the cost we pay is the time spent
|
|
// setting and resetting one scissors register:
|
|
|
|
MM_SCISSORS_L(ppdev, pjMmBase, xLeft);
|
|
xLeft -= xBias;
|
|
}
|
|
|
|
cx = prcl->right - xLeft;
|
|
cy = prcl->bottom - yTop;
|
|
|
|
MM_CUR_X(ppdev, pjMmBase, xLeft);
|
|
MM_CUR_Y(ppdev, pjMmBase, yTop);
|
|
MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, cx - 1);
|
|
MM_MIN_AXIS_PCNT(ppdev, pjMmBase, cy - 1);
|
|
|
|
cjSrc = (cx + 7) >> 3; // # bytes to transfer
|
|
pjSrc = pjSrcScan0 + (yTop + dySrc) * lSrcDelta
|
|
+ ((xLeft + dxSrc) >> 3);
|
|
// Start is byte aligned (note
|
|
// that we don't have to add
|
|
// xBias)
|
|
|
|
ppdev->pfnImageTransfer(ppdev, pjSrc, lSrcDelta, cjSrc, cy,
|
|
(RECTANGLE_FILL | WAIT | DRAWING_DIR_TBLRXM |
|
|
DRAW | LAST_PIXEL_ON | MULTIPLE_PIXELS |
|
|
WRITE | BYTE_SWAP));
|
|
|
|
if (xBias != 0)
|
|
{
|
|
IO_FIFO_WAIT(ppdev, 1); // Reset the clipping if we used it
|
|
MM_ABS_SCISSORS_L(ppdev, pjMmBase, 0);
|
|
}
|
|
|
|
prcl++;
|
|
} while (--c != 0);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* VOID vMmXfer4bpp
|
|
*
|
|
* Does a 4bpp transfer from a bitmap to the screen.
|
|
*
|
|
* NOTE: The screen must be 8bpp for this function to be called!
|
|
*
|
|
* The reason we implement this is that a lot of resources are kept as 4bpp,
|
|
* and used to initialize DFBs, some of which we of course keep off-screen.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
// XLATE_BUFFER_SIZE defines the size of the stack-based buffer we use
|
|
// for doing the translate. Note that in general stack buffers should
|
|
// be kept as small as possible. The OS guarantees us only 8k for stack
|
|
// from GDI down to the display driver in low memory situations; if we
|
|
// ask for more, we'll access violate. Note also that at any time the
|
|
// stack buffer cannot be larger than a page (4k) -- otherwise we may
|
|
// miss touching the 'guard page' and access violate then too.
|
|
|
|
#define XLATE_BUFFER_SIZE 256
|
|
|
|
VOID vMmXfer4bpp( // Type FNXFER
|
|
PDEV* ppdev,
|
|
LONG c, // Count of rectangles, can't be zero
|
|
RECTL* prcl, // List of destination rectangles, in relative
|
|
// coordinates
|
|
ULONG rop4, // rop4
|
|
SURFOBJ* psoSrc, // Source surface
|
|
POINTL* pptlSrc, // Original unclipped source point
|
|
RECTL* prclDst, // Original unclipped destination rectangle
|
|
XLATEOBJ* pxlo) // Translate that provides colour-expansion information
|
|
{
|
|
LONG dx;
|
|
LONG dy;
|
|
LONG cx;
|
|
LONG cy;
|
|
LONG lSrcDelta;
|
|
BYTE* pjSrcScan0;
|
|
BYTE* pjScan;
|
|
BYTE* pjSrc;
|
|
BYTE* pjDst;
|
|
LONG cxThis;
|
|
LONG cxToGo;
|
|
LONG xSrc;
|
|
LONG iLoop;
|
|
BYTE jSrc;
|
|
ULONG* pulXlate;
|
|
LONG cwThis;
|
|
BYTE* pjBuf;
|
|
BYTE ajBuf[XLATE_BUFFER_SIZE];
|
|
BYTE* pjMmBase = ppdev->pjMmBase;
|
|
|
|
ASSERTDD(ppdev->iBitmapFormat == BMF_8BPP, "Screen must be 8bpp");
|
|
ASSERTDD(psoSrc->iBitmapFormat == BMF_4BPP, "Source must be 4bpp");
|
|
ASSERTDD(c > 0, "Can't handle zero rectangles");
|
|
ASSERTDD(((rop4 & 0xff00) >> 8) == (rop4 & 0xff),
|
|
"Expect only a rop2");
|
|
|
|
dx = pptlSrc->x - prclDst->left;
|
|
dy = pptlSrc->y - prclDst->top; // Add to destination to get source
|
|
|
|
lSrcDelta = psoSrc->lDelta;
|
|
pjSrcScan0 = psoSrc->pvScan0;
|
|
|
|
IO_FIFO_WAIT(ppdev, 6);
|
|
MM_PIX_CNTL(ppdev, pjMmBase, ALL_ONES);
|
|
MM_FRGD_MIX(ppdev, pjMmBase, SRC_CPU_DATA | gaulHwMixFromRop2[rop4 & 0xf]);
|
|
|
|
while(TRUE)
|
|
{
|
|
cx = prcl->right - prcl->left;
|
|
cy = prcl->bottom - prcl->top;
|
|
|
|
MM_CUR_X(ppdev, pjMmBase, prcl->left);
|
|
MM_CUR_Y(ppdev, pjMmBase, prcl->top);
|
|
MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, cx - 1);
|
|
MM_MIN_AXIS_PCNT(ppdev, pjMmBase, cy - 1);
|
|
|
|
pulXlate = pxlo->pulXlate;
|
|
xSrc = prcl->left + dx;
|
|
pjScan = pjSrcScan0 + (prcl->top + dy) * lSrcDelta + (xSrc >> 1);
|
|
|
|
IO_GP_WAIT(ppdev);
|
|
MM_CMD(ppdev, pjMmBase, RECTANGLE_FILL | BUS_SIZE_16| WAIT |
|
|
DRAWING_DIR_TBLRXM | DRAW | LAST_PIXEL_ON |
|
|
SINGLE_PIXEL | WRITE | BYTE_SWAP);
|
|
CHECK_DATA_READY(ppdev);
|
|
|
|
do {
|
|
pjSrc = pjScan;
|
|
cxToGo = cx; // # of pels per scan in 4bpp source
|
|
do {
|
|
cxThis = XLATE_BUFFER_SIZE;
|
|
// We can handle XLATE_BUFFER_SIZE number
|
|
// of pels in this xlate batch
|
|
cxToGo -= cxThis; // cxThis will be the actual number of
|
|
// pels we'll do in this xlate batch
|
|
if (cxToGo < 0)
|
|
cxThis += cxToGo;
|
|
|
|
pjDst = ajBuf; // Points to our temporary batch buffer
|
|
|
|
// We handle alignment ourselves because it's easy to
|
|
// do, rather than pay the cost of setting/resetting
|
|
// the scissors register:
|
|
|
|
if (xSrc & 1)
|
|
{
|
|
// When unaligned, we have to be careful not to read
|
|
// past the end of the 4bpp bitmap (that could
|
|
// potentially cause us to access violate):
|
|
|
|
iLoop = cxThis >> 1; // Each loop handles 2 pels;
|
|
// we'll handle odd pel
|
|
// separately
|
|
jSrc = *pjSrc;
|
|
|
|
while (iLoop-- != 0)
|
|
{
|
|
*pjDst++ = (BYTE) pulXlate[jSrc & 0xf];
|
|
jSrc = *(++pjSrc);
|
|
*pjDst++ = (BYTE) pulXlate[jSrc >> 4];
|
|
}
|
|
|
|
if (cxThis & 1)
|
|
{
|
|
*pjDst++ = (BYTE) pulXlate[jSrc & 0xf];
|
|
*pjDst = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
iLoop = (cxThis + 1) >> 1; // Each loop handles 2 pels
|
|
do {
|
|
jSrc = *pjSrc++;
|
|
|
|
*pjDst++ = (BYTE) pulXlate[jSrc >> 4];
|
|
*pjDst++ = (BYTE) pulXlate[jSrc & 0xf];
|
|
|
|
} while (--iLoop != 0);
|
|
}
|
|
|
|
// The number of bytes we'll transfer is equal to the number
|
|
// of pels we've processed in the batch. Since we're
|
|
// transferring words, we have to round up to get the word
|
|
// count:
|
|
|
|
cwThis = (cxThis + 1) >> 1;
|
|
pjBuf = ajBuf;
|
|
MM_TRANSFER_WORD_ALIGNED(ppdev, pjMmBase, pjBuf, cwThis);
|
|
|
|
} while (cxToGo > 0);
|
|
|
|
pjScan += lSrcDelta; // Advance to next source scan. Note
|
|
// that we could have computed the
|
|
// value to advance 'pjSrc' directly,
|
|
// but this method is less
|
|
// error-prone.
|
|
|
|
} while (--cy != 0);
|
|
|
|
CHECK_DATA_COMPLETE(ppdev);
|
|
|
|
if (--c == 0)
|
|
return;
|
|
|
|
prcl++;
|
|
IO_FIFO_WAIT(ppdev, 4);
|
|
}
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* VOID vMmXferNative
|
|
*
|
|
* Transfers a bitmap that is the same colour depth as the display to
|
|
* the screen via the data transfer register, with no translation.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
VOID vMmXferNative( // Type FNXFER
|
|
PDEV* ppdev,
|
|
LONG c, // Count of rectangles, can't be zero
|
|
RECTL* prcl, // Array of relative coordinates destination rectangles
|
|
ROP4 rop4, // rop4
|
|
SURFOBJ* psoSrc, // Source surface
|
|
POINTL* pptlSrc, // Original unclipped source point
|
|
RECTL* prclDst, // Original unclipped destination rectangle
|
|
XLATEOBJ* pxlo) // Not used
|
|
{
|
|
LONG dx;
|
|
LONG dy;
|
|
LONG cx;
|
|
LONG cy;
|
|
LONG lSrcDelta;
|
|
BYTE* pjSrcScan0;
|
|
BYTE* pjSrc;
|
|
LONG cjSrc;
|
|
BYTE* pjMmBase = ppdev->pjMmBase;
|
|
|
|
ASSERTDD((pxlo == NULL) || (pxlo->flXlate & XO_TRIVIAL),
|
|
"Can handle trivial xlate only");
|
|
ASSERTDD(psoSrc->iBitmapFormat == ppdev->iBitmapFormat,
|
|
"Source must be same colour depth as screen");
|
|
ASSERTDD(c > 0, "Can't handle zero rectangles");
|
|
ASSERTDD(((rop4 & 0xff00) >> 8) == (rop4 & 0xff),
|
|
"Expect only a rop2");
|
|
|
|
dx = pptlSrc->x - prclDst->left;
|
|
dy = pptlSrc->y - prclDst->top; // Add to destination to get source
|
|
|
|
lSrcDelta = psoSrc->lDelta;
|
|
pjSrcScan0 = psoSrc->pvScan0;
|
|
|
|
IO_FIFO_WAIT(ppdev, 6);
|
|
MM_PIX_CNTL(ppdev, pjMmBase, ALL_ONES);
|
|
MM_FRGD_MIX(ppdev, pjMmBase, SRC_CPU_DATA | gaulHwMixFromRop2[rop4 & 0xf]);
|
|
|
|
while(TRUE)
|
|
{
|
|
MM_CUR_X(ppdev, pjMmBase, prcl->left);
|
|
MM_CUR_Y(ppdev, pjMmBase, prcl->top);
|
|
|
|
cx = prcl->right - prcl->left;
|
|
MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, cx - 1);
|
|
|
|
cy = prcl->bottom - prcl->top;
|
|
MM_MIN_AXIS_PCNT(ppdev, pjMmBase, cy - 1);
|
|
|
|
cjSrc = CONVERT_TO_BYTES(cx, ppdev);
|
|
pjSrc = pjSrcScan0 + (prcl->top + dy) * lSrcDelta
|
|
+ CONVERT_TO_BYTES((prcl->left + dx), ppdev);
|
|
|
|
ppdev->pfnImageTransfer(ppdev, pjSrc, lSrcDelta, cjSrc, cy,
|
|
(RECTANGLE_FILL | WAIT | DRAWING_DIR_TBLRXM |
|
|
DRAW | LAST_PIXEL_ON | SINGLE_PIXEL |
|
|
WRITE | BYTE_SWAP));
|
|
|
|
if (--c == 0)
|
|
return;
|
|
|
|
prcl++;
|
|
IO_FIFO_WAIT(ppdev, 4);
|
|
}
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* VOID vMmCopyBlt
|
|
*
|
|
* Does a screen-to-screen blt of a list of rectangles.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
VOID vMmCopyBlt( // Type FNCOPY
|
|
PDEV* ppdev,
|
|
LONG c, // Can't be zero
|
|
RECTL* prcl, // Array of relative coordinates destination rectangles
|
|
ULONG rop4, // rop4
|
|
POINTL* pptlSrc, // Original unclipped source point
|
|
RECTL* prclDst) // Original unclipped destination rectangle
|
|
{
|
|
LONG dx;
|
|
LONG dy; // Add delta to destination to get source
|
|
LONG cx;
|
|
LONG cy; // Size of current rectangle - 1
|
|
BYTE* pjMmBase = ppdev->pjMmBase;
|
|
|
|
ASSERTDD(c > 0, "Can't handle zero rectangles");
|
|
ASSERTDD(((rop4 & 0xff00) >> 8) == (rop4 & 0xff),
|
|
"Expect only a rop2");
|
|
|
|
IO_FIFO_WAIT(ppdev, 2);
|
|
MM_FRGD_MIX(ppdev, pjMmBase, SRC_DISPLAY_MEMORY | gaulHwMixFromRop2[rop4 & 0xf]);
|
|
MM_PIX_CNTL(ppdev, pjMmBase, ALL_ONES);
|
|
|
|
dx = pptlSrc->x - prclDst->left;
|
|
dy = pptlSrc->y - prclDst->top;
|
|
|
|
// The accelerator may not be as fast at doing right-to-left copies, so
|
|
// only do them when the rectangles truly overlap:
|
|
|
|
if (!OVERLAP(prclDst, pptlSrc))
|
|
goto Top_Down_Left_To_Right;
|
|
|
|
if (prclDst->top <= pptlSrc->y)
|
|
{
|
|
if (prclDst->left <= pptlSrc->x)
|
|
{
|
|
|
|
Top_Down_Left_To_Right:
|
|
|
|
do {
|
|
IO_FIFO_WAIT(ppdev, 7);
|
|
|
|
cx = prcl->right - prcl->left - 1;
|
|
MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, cx);
|
|
MM_DEST_X(ppdev, pjMmBase, prcl->left);
|
|
MM_CUR_X(ppdev, pjMmBase, prcl->left + dx);
|
|
|
|
cy = prcl->bottom - prcl->top - 1;
|
|
MM_MIN_AXIS_PCNT(ppdev, pjMmBase, cy);
|
|
MM_DEST_Y(ppdev, pjMmBase, prcl->top);
|
|
MM_CUR_Y(ppdev, pjMmBase, prcl->top + dy);
|
|
|
|
MM_CMD(ppdev, pjMmBase, BITBLT | DRAW | DIR_TYPE_XY | WRITE |
|
|
DRAWING_DIR_TBLRXM);
|
|
prcl++;
|
|
|
|
} while (--c != 0);
|
|
}
|
|
else
|
|
{
|
|
do {
|
|
IO_FIFO_WAIT(ppdev, 7);
|
|
|
|
cx = prcl->right - prcl->left - 1;
|
|
MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, cx);
|
|
MM_DEST_X(ppdev, pjMmBase, prcl->left + cx);
|
|
MM_CUR_X(ppdev, pjMmBase, prcl->left + cx + dx);
|
|
|
|
cy = prcl->bottom - prcl->top - 1;
|
|
MM_MIN_AXIS_PCNT(ppdev, pjMmBase, cy);
|
|
MM_DEST_Y(ppdev, pjMmBase, prcl->top);
|
|
MM_CUR_Y(ppdev, pjMmBase, prcl->top + dy);
|
|
|
|
MM_CMD(ppdev, pjMmBase, BITBLT | DRAW | DIR_TYPE_XY | WRITE |
|
|
DRAWING_DIR_TBRLXM);
|
|
prcl++;
|
|
|
|
} while (--c != 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (prclDst->left <= pptlSrc->x)
|
|
{
|
|
do {
|
|
IO_FIFO_WAIT(ppdev, 7);
|
|
|
|
cx = prcl->right - prcl->left - 1;
|
|
MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, cx);
|
|
MM_DEST_X(ppdev, pjMmBase, prcl->left);
|
|
MM_CUR_X(ppdev, pjMmBase, prcl->left + dx);
|
|
|
|
cy = prcl->bottom - prcl->top - 1;
|
|
MM_MIN_AXIS_PCNT(ppdev, pjMmBase, cy);
|
|
MM_DEST_Y(ppdev, pjMmBase, prcl->top + cy);
|
|
MM_CUR_Y(ppdev, pjMmBase, prcl->top + cy + dy);
|
|
|
|
MM_CMD(ppdev, pjMmBase, BITBLT | DRAW | DIR_TYPE_XY | WRITE |
|
|
DRAWING_DIR_BTLRXM);
|
|
prcl++;
|
|
|
|
} while (--c != 0);
|
|
}
|
|
else
|
|
{
|
|
do {
|
|
IO_FIFO_WAIT(ppdev, 7);
|
|
|
|
cx = prcl->right - prcl->left - 1;
|
|
MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, cx);
|
|
MM_DEST_X(ppdev, pjMmBase, prcl->left + cx);
|
|
MM_CUR_X(ppdev, pjMmBase, prcl->left + cx + dx);
|
|
|
|
cy = prcl->bottom - prcl->top - 1;
|
|
MM_MIN_AXIS_PCNT(ppdev, pjMmBase, cy);
|
|
MM_DEST_Y(ppdev, pjMmBase, prcl->top + cy);
|
|
MM_CUR_Y(ppdev, pjMmBase, prcl->top + cy + dy);
|
|
|
|
MM_CMD(ppdev, pjMmBase, BITBLT | DRAW | DIR_TYPE_XY | WRITE |
|
|
DRAWING_DIR_BTRLXM);
|
|
prcl++;
|
|
|
|
} while (--c != 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* VOID vMmCopyTransparent
|
|
*
|
|
* Does a screen-to-screen blt of a list of rectangles using a source
|
|
* colorkey for transparency.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
VOID vMmCopyTransparent( // Type FNCOPYTRANSPARENT
|
|
PDEV* ppdev,
|
|
LONG c, // Can't be zero
|
|
RECTL* prcl, // Array of relative coordinates destination rectangles
|
|
POINTL* pptlSrc, // Original unclipped source point
|
|
RECTL* prclDst, // Original unclipped destination rectangle
|
|
ULONG iColor)
|
|
{
|
|
LONG dx;
|
|
LONG dy; // Add delta to destination to get source
|
|
BYTE* pjMmBase = ppdev->pjMmBase;
|
|
|
|
ASSERTDD(c > 0, "Can't handle zero rectangles");
|
|
|
|
// Note that we don't have to worry about overlapping blts, since GDI
|
|
// will never allow those down to us.
|
|
|
|
dx = pptlSrc->x - prclDst->left;
|
|
dy = pptlSrc->y - prclDst->top;
|
|
|
|
IO_FIFO_WAIT(ppdev, 4);
|
|
MM_COLOR_CMP(ppdev, pjMmBase, iColor);
|
|
MM_MULTIFUNC_CNTL(ppdev, pjMmBase, ppdev->ulMiscState
|
|
| MULT_MISC_COLOR_COMPARE);
|
|
MM_FRGD_MIX(ppdev, pjMmBase, SRC_DISPLAY_MEMORY | OVERPAINT);
|
|
MM_PIX_CNTL(ppdev, pjMmBase, ALL_ONES);
|
|
|
|
while (TRUE)
|
|
{
|
|
IO_FIFO_WAIT(ppdev, 7);
|
|
MM_CUR_X(ppdev, pjMmBase, prcl->left + dx);
|
|
MM_CUR_Y(ppdev, pjMmBase, prcl->top + dy);
|
|
MM_DEST_X(ppdev, pjMmBase, prcl->left);
|
|
MM_DEST_Y(ppdev, pjMmBase, prcl->top);
|
|
MM_MAJ_AXIS_PCNT(ppdev, pjMmBase, prcl->right - prcl->left - 1);
|
|
MM_MIN_AXIS_PCNT(ppdev, pjMmBase, prcl->bottom - prcl->top - 1);
|
|
MM_CMD(ppdev, pjMmBase, BITBLT | DRAW | DIR_TYPE_XY |
|
|
WRITE | DRAWING_DIR_TBLRXM);
|
|
|
|
if (--c == 0)
|
|
{
|
|
IO_FIFO_WAIT(ppdev, 1);
|
|
MM_MULTIFUNC_CNTL(ppdev, pjMmBase, ppdev->ulMiscState);
|
|
return;
|
|
}
|
|
|
|
prcl++;
|
|
}
|
|
}
|