524 lines
14 KiB
C
524 lines
14 KiB
C
|
/******************************Module*Header*******************************\
|
||
|
|
*
|
||
|
|
* *******************
|
||
|
|
* * GDI SAMPLE CODE *
|
||
|
|
* *******************
|
||
|
|
*
|
||
|
|
* Module Name: enable.c
|
||
|
|
*
|
||
|
|
* This module contains the functions that enable and disable the
|
||
|
|
* driver, the pdev, and the surface.
|
||
|
|
*
|
||
|
|
* Copyright (c) 1992-1998 Microsoft Corporation
|
||
|
|
\**************************************************************************/
|
||
|
|
|
||
|
|
#include "driver.h"
|
||
|
|
|
||
|
|
// The driver function table with all function index/address pairs
|
||
|
|
|
||
|
|
static DRVFN gadrvfn[] =
|
||
|
|
{
|
||
|
|
{ INDEX_DrvEnablePDEV, (PFN) DrvEnablePDEV },
|
||
|
|
{ INDEX_DrvCompletePDEV, (PFN) DrvCompletePDEV },
|
||
|
|
{ INDEX_DrvDisablePDEV, (PFN) DrvDisablePDEV },
|
||
|
|
{ INDEX_DrvEnableSurface, (PFN) DrvEnableSurface },
|
||
|
|
{ INDEX_DrvOffset, (PFN) DrvOffset },
|
||
|
|
{ INDEX_DrvDisableSurface, (PFN) DrvDisableSurface },
|
||
|
|
{ INDEX_DrvAssertMode, (PFN) DrvAssertMode },
|
||
|
|
{ INDEX_DrvSetPalette, (PFN) DrvSetPalette },
|
||
|
|
{ INDEX_DrvMovePointer, (PFN) DrvMovePointer },
|
||
|
|
{ INDEX_DrvSetPointerShape, (PFN) DrvSetPointerShape },
|
||
|
|
{ INDEX_DrvDitherColor, (PFN) DrvDitherColor },
|
||
|
|
{ INDEX_DrvSynchronize, (PFN) DrvSynchronize },
|
||
|
|
{ INDEX_DrvGetModes, (PFN) DrvGetModes }
|
||
|
|
};
|
||
|
|
|
||
|
|
// Define the functions you want to hook for 8/16/24/32 pel formats
|
||
|
|
|
||
|
|
#define HOOKS_BMF8BPP 0
|
||
|
|
|
||
|
|
#define HOOKS_BMF16BPP 0
|
||
|
|
|
||
|
|
#define HOOKS_BMF24BPP 0
|
||
|
|
|
||
|
|
#define HOOKS_BMF32BPP 0
|
||
|
|
|
||
|
|
/******************************Public*Routine******************************\
|
||
|
|
* DrvEnableDriver
|
||
|
|
*
|
||
|
|
* Enables the driver by retrieving the drivers function table and version.
|
||
|
|
*
|
||
|
|
\**************************************************************************/
|
||
|
|
|
||
|
|
BOOL DrvEnableDriver(
|
||
|
|
ULONG iEngineVersion,
|
||
|
|
ULONG cj,
|
||
|
|
PDRVENABLEDATA pded)
|
||
|
|
{
|
||
|
|
// Engine Version is passed down so future drivers can support previous
|
||
|
|
// engine versions. A next generation driver can support both the old
|
||
|
|
// and new engine conventions if told what version of engine it is
|
||
|
|
// working with. For the first version the driver does nothing with it.
|
||
|
|
|
||
|
|
iEngineVersion;
|
||
|
|
|
||
|
|
// Fill in as much as we can.
|
||
|
|
|
||
|
|
if (cj >= sizeof(DRVENABLEDATA))
|
||
|
|
pded->pdrvfn = gadrvfn;
|
||
|
|
|
||
|
|
if (cj >= (sizeof(ULONG) * 2))
|
||
|
|
pded->c = sizeof(gadrvfn) / sizeof(DRVFN);
|
||
|
|
|
||
|
|
// DDI version this driver was targeted for is passed back to engine.
|
||
|
|
// Future graphic's engine may break calls down to old driver format.
|
||
|
|
|
||
|
|
if (cj >= sizeof(ULONG))
|
||
|
|
pded->iDriverVersion = DDI_DRIVER_VERSION_NT4;
|
||
|
|
|
||
|
|
return(TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************Public*Routine******************************\
|
||
|
|
* DrvEnablePDEV
|
||
|
|
*
|
||
|
|
* DDI function, Enables the Physical Device.
|
||
|
|
*
|
||
|
|
* Return Value: device handle to pdev.
|
||
|
|
*
|
||
|
|
\**************************************************************************/
|
||
|
|
|
||
|
|
DHPDEV DrvEnablePDEV(
|
||
|
|
DEVMODEW *pDevmode, // Pointer to DEVMODE
|
||
|
|
PWSTR pwszLogAddress, // Logical address
|
||
|
|
ULONG cPatterns, // number of patterns
|
||
|
|
HSURF *ahsurfPatterns, // return standard patterns
|
||
|
|
ULONG cjGdiInfo, // Length of memory pointed to by pGdiInfo
|
||
|
|
ULONG *pGdiInfo, // Pointer to GdiInfo structure
|
||
|
|
ULONG cjDevInfo, // Length of following PDEVINFO structure
|
||
|
|
DEVINFO *pDevInfo, // physical device information structure
|
||
|
|
HDEV hdev, // HDEV, used for callbacks
|
||
|
|
PWSTR pwszDeviceName, // DeviceName - not used
|
||
|
|
HANDLE hDriver) // Handle to base driver
|
||
|
|
{
|
||
|
|
GDIINFO GdiInfo;
|
||
|
|
DEVINFO DevInfo;
|
||
|
|
PPDEV ppdev = (PPDEV) NULL;
|
||
|
|
|
||
|
|
UNREFERENCED_PARAMETER(pwszLogAddress);
|
||
|
|
UNREFERENCED_PARAMETER(pwszDeviceName);
|
||
|
|
|
||
|
|
// Allocate a physical device structure.
|
||
|
|
|
||
|
|
ppdev = (PPDEV) EngAllocMem(0, sizeof(PDEV), ALLOC_TAG);
|
||
|
|
|
||
|
|
if (ppdev == (PPDEV) NULL)
|
||
|
|
{
|
||
|
|
RIP("DISP DrvEnablePDEV failed EngAllocMem\n");
|
||
|
|
return((DHPDEV) 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
memset(ppdev, 0, sizeof(PDEV));
|
||
|
|
|
||
|
|
// Save the screen handle in the PDEV.
|
||
|
|
|
||
|
|
ppdev->hDriver = hDriver;
|
||
|
|
|
||
|
|
// Get the current screen mode information. Set up device caps and devinfo.
|
||
|
|
|
||
|
|
if (!bInitPDEV(ppdev, pDevmode, &GdiInfo, &DevInfo))
|
||
|
|
{
|
||
|
|
DISPDBG((0,"DISP DrvEnablePDEV failed\n"));
|
||
|
|
goto error_free;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Initialize the cursor information.
|
||
|
|
|
||
|
|
if (!bInitPointer(ppdev, &DevInfo))
|
||
|
|
{
|
||
|
|
// Not a fatal error...
|
||
|
|
DISPDBG((0, "DrvEnablePDEV failed bInitPointer\n"));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Initialize palette information.
|
||
|
|
|
||
|
|
if (!bInitPaletteInfo(ppdev, &DevInfo))
|
||
|
|
{
|
||
|
|
RIP("DrvEnablePDEV failed bInitPalette\n");
|
||
|
|
goto error_free;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Copy the devinfo into the engine buffer.
|
||
|
|
|
||
|
|
memcpy(pDevInfo, &DevInfo, min(sizeof(DEVINFO), cjDevInfo));
|
||
|
|
|
||
|
|
// Set the pdevCaps with GdiInfo we have prepared to the list of caps for this
|
||
|
|
// pdev.
|
||
|
|
|
||
|
|
memcpy(pGdiInfo, &GdiInfo, min(cjGdiInfo, sizeof(GDIINFO)));
|
||
|
|
|
||
|
|
return((DHPDEV) ppdev);
|
||
|
|
|
||
|
|
// Error case for failure.
|
||
|
|
error_free:
|
||
|
|
EngFreeMem(ppdev);
|
||
|
|
return((DHPDEV) 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************Public*Routine******************************\
|
||
|
|
* DrvCompletePDEV
|
||
|
|
*
|
||
|
|
* Store the HPDEV, the engines handle for this PDEV, in the DHPDEV.
|
||
|
|
*
|
||
|
|
\**************************************************************************/
|
||
|
|
|
||
|
|
VOID DrvCompletePDEV(
|
||
|
|
DHPDEV dhpdev,
|
||
|
|
HDEV hdev)
|
||
|
|
{
|
||
|
|
((PPDEV) dhpdev)->hdevEng = hdev;
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************Public*Routine******************************\
|
||
|
|
* DrvDisablePDEV
|
||
|
|
*
|
||
|
|
* Release the resources allocated in DrvEnablePDEV. If a surface has been
|
||
|
|
* enabled DrvDisableSurface will have already been called.
|
||
|
|
*
|
||
|
|
\**************************************************************************/
|
||
|
|
|
||
|
|
VOID DrvDisablePDEV(
|
||
|
|
DHPDEV dhpdev)
|
||
|
|
{
|
||
|
|
vDisablePalette((PPDEV) dhpdev);
|
||
|
|
EngFreeMem(dhpdev);
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************Public*Routine******************************\
|
||
|
|
* VOID DrvOffset
|
||
|
|
*
|
||
|
|
* DescriptionText
|
||
|
|
*
|
||
|
|
\**************************************************************************/
|
||
|
|
|
||
|
|
BOOL DrvOffset(
|
||
|
|
SURFOBJ* pso,
|
||
|
|
LONG x,
|
||
|
|
LONG y,
|
||
|
|
FLONG flReserved)
|
||
|
|
{
|
||
|
|
PDEV* ppdev = (PDEV*) pso->dhpdev;
|
||
|
|
|
||
|
|
// Add back last offset that we subtracted. I could combine the next
|
||
|
|
// two statements, but I thought this was more clear. It's not
|
||
|
|
// performance critical anyway.
|
||
|
|
|
||
|
|
ppdev->pjScreen += ((ppdev->ptlOrg.y * ppdev->lDeltaScreen) +
|
||
|
|
(ppdev->ptlOrg.x * ((ppdev->ulBitCount+1) >> 3)));
|
||
|
|
|
||
|
|
// Subtract out new offset
|
||
|
|
|
||
|
|
ppdev->pjScreen -= ((y * ppdev->lDeltaScreen) +
|
||
|
|
(x * ((ppdev->ulBitCount+1) >> 3)));
|
||
|
|
|
||
|
|
ppdev->ptlOrg.x = x;
|
||
|
|
ppdev->ptlOrg.y = y;
|
||
|
|
|
||
|
|
return(TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************Public*Routine******************************\
|
||
|
|
* DrvEnableSurface
|
||
|
|
*
|
||
|
|
* Enable the surface for the device. Hook the calls this driver supports.
|
||
|
|
*
|
||
|
|
* Return: Handle to the surface if successful, 0 for failure.
|
||
|
|
*
|
||
|
|
\**************************************************************************/
|
||
|
|
|
||
|
|
HSURF DrvEnableSurface(
|
||
|
|
DHPDEV dhpdev)
|
||
|
|
{
|
||
|
|
PPDEV ppdev;
|
||
|
|
HSURF hsurf;
|
||
|
|
SIZEL sizl;
|
||
|
|
ULONG ulBitmapType;
|
||
|
|
FLONG flHooks;
|
||
|
|
|
||
|
|
// Create engine bitmap around frame buffer.
|
||
|
|
|
||
|
|
ppdev = (PPDEV) dhpdev;
|
||
|
|
|
||
|
|
ppdev->ptlOrg.x = 0;
|
||
|
|
ppdev->ptlOrg.y = 0;
|
||
|
|
|
||
|
|
if (!bInitSURF(ppdev, TRUE))
|
||
|
|
{
|
||
|
|
DISPDBG((0, "DISP DrvEnableSurface failed bInitSURF\n"));
|
||
|
|
return(FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
sizl.cx = ppdev->cxScreen;
|
||
|
|
sizl.cy = ppdev->cyScreen;
|
||
|
|
|
||
|
|
if (ppdev->ulBitCount == 8)
|
||
|
|
{
|
||
|
|
if (!bInit256ColorPalette(ppdev)) {
|
||
|
|
RIP("DISP DrvEnableSurface failed to init the 8bpp palette\n");
|
||
|
|
return(FALSE);
|
||
|
|
}
|
||
|
|
ulBitmapType = BMF_8BPP;
|
||
|
|
flHooks = HOOKS_BMF8BPP;
|
||
|
|
}
|
||
|
|
else if (ppdev->ulBitCount == 16)
|
||
|
|
{
|
||
|
|
ulBitmapType = BMF_16BPP;
|
||
|
|
flHooks = HOOKS_BMF16BPP;
|
||
|
|
}
|
||
|
|
else if (ppdev->ulBitCount == 24)
|
||
|
|
{
|
||
|
|
ulBitmapType = BMF_24BPP;
|
||
|
|
flHooks = HOOKS_BMF24BPP;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ulBitmapType = BMF_32BPP;
|
||
|
|
flHooks = HOOKS_BMF32BPP;
|
||
|
|
}
|
||
|
|
|
||
|
|
ppdev->flHooks = flHooks;
|
||
|
|
|
||
|
|
hsurf = (HSURF)EngCreateDeviceSurface((DHSURF)ppdev,
|
||
|
|
sizl,
|
||
|
|
ulBitmapType);
|
||
|
|
|
||
|
|
if (hsurf == (HSURF) 0)
|
||
|
|
{
|
||
|
|
RIP("DISP DrvEnableSurface failed EngCreateDeviceSurface\n");
|
||
|
|
return(FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !EngModifySurface(hsurf,
|
||
|
|
ppdev->hdevEng,
|
||
|
|
ppdev->flHooks | HOOK_SYNCHRONIZE,
|
||
|
|
MS_NOTSYSTEMMEMORY,
|
||
|
|
(DHSURF)ppdev,
|
||
|
|
ppdev->pjScreen,
|
||
|
|
ppdev->lDeltaScreen,
|
||
|
|
NULL))
|
||
|
|
{
|
||
|
|
RIP("DISP DrvEnableSurface failed EngModifySurface\n");
|
||
|
|
return(FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
ppdev->hsurfEng = hsurf;
|
||
|
|
|
||
|
|
return(hsurf);
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************Public*Routine******************************\
|
||
|
|
* DrvDisableSurface
|
||
|
|
*
|
||
|
|
* Free resources allocated by DrvEnableSurface. Release the surface.
|
||
|
|
*
|
||
|
|
\**************************************************************************/
|
||
|
|
|
||
|
|
VOID DrvDisableSurface(
|
||
|
|
DHPDEV dhpdev)
|
||
|
|
{
|
||
|
|
EngDeleteSurface(((PPDEV) dhpdev)->hsurfEng);
|
||
|
|
vDisableSURF((PPDEV) dhpdev);
|
||
|
|
((PPDEV) dhpdev)->hsurfEng = (HSURF) 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************Public*Routine******************************\
|
||
|
|
* DrvAssertMode
|
||
|
|
*
|
||
|
|
* This asks the device to reset itself to the mode of the pdev passed in.
|
||
|
|
*
|
||
|
|
\**************************************************************************/
|
||
|
|
|
||
|
|
BOOL DrvAssertMode(
|
||
|
|
DHPDEV dhpdev,
|
||
|
|
BOOL bEnable)
|
||
|
|
{
|
||
|
|
PPDEV ppdev = (PPDEV) dhpdev;
|
||
|
|
ULONG ulReturn;
|
||
|
|
PBYTE pjScreen;
|
||
|
|
|
||
|
|
if (bEnable)
|
||
|
|
{
|
||
|
|
|
||
|
|
//
|
||
|
|
// The screen must be reenabled, reinitialize the device to clean state.
|
||
|
|
//
|
||
|
|
|
||
|
|
pjScreen = ppdev->pjScreen;
|
||
|
|
|
||
|
|
if (!bInitSURF(ppdev, TRUE))
|
||
|
|
{
|
||
|
|
RIP("DISP DrvAssertMode failed bInitSURF\n");
|
||
|
|
return (FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pjScreen != ppdev->pjScreen) {
|
||
|
|
|
||
|
|
if ( !EngModifySurface(ppdev->hsurfEng,
|
||
|
|
ppdev->hdevEng,
|
||
|
|
ppdev->flHooks | HOOK_SYNCHRONIZE,
|
||
|
|
MS_NOTSYSTEMMEMORY,
|
||
|
|
(DHSURF)ppdev,
|
||
|
|
ppdev->pjScreen,
|
||
|
|
ppdev->lDeltaScreen,
|
||
|
|
NULL))
|
||
|
|
{
|
||
|
|
RIP("DISP DrvAssertMode failed EngModifySurface\n");
|
||
|
|
return (FALSE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return (TRUE);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// We must give up the display.
|
||
|
|
// Call the kernel driver to reset the device to a known state.
|
||
|
|
//
|
||
|
|
|
||
|
|
if (EngDeviceIoControl(ppdev->hDriver,
|
||
|
|
IOCTL_VIDEO_RESET_DEVICE,
|
||
|
|
NULL,
|
||
|
|
0,
|
||
|
|
NULL,
|
||
|
|
0,
|
||
|
|
&ulReturn))
|
||
|
|
{
|
||
|
|
RIP("DISP DrvAssertMode failed IOCTL");
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************Public*Routine******************************\
|
||
|
|
* DrvGetModes
|
||
|
|
*
|
||
|
|
* Returns the list of available modes for the device.
|
||
|
|
*
|
||
|
|
\**************************************************************************/
|
||
|
|
|
||
|
|
ULONG DrvGetModes(
|
||
|
|
HANDLE hDriver,
|
||
|
|
ULONG cjSize,
|
||
|
|
DEVMODEW *pdm)
|
||
|
|
|
||
|
|
{
|
||
|
|
|
||
|
|
DWORD cModes;
|
||
|
|
DWORD cbOutputSize;
|
||
|
|
PVIDEO_MODE_INFORMATION pVideoModeInformation, pVideoTemp;
|
||
|
|
DWORD cOutputModes = cjSize / (sizeof(DEVMODEW) + DRIVER_EXTRA_SIZE);
|
||
|
|
DWORD cbModeSize;
|
||
|
|
|
||
|
|
DISPDBG((3, "DrvGetModes\n"));
|
||
|
|
|
||
|
|
cModes = getAvailableModes(hDriver,
|
||
|
|
(PVIDEO_MODE_INFORMATION *) &pVideoModeInformation,
|
||
|
|
&cbModeSize);
|
||
|
|
|
||
|
|
if (cModes == 0)
|
||
|
|
{
|
||
|
|
DISPDBG((0, "DrvGetModes failed to get mode information"));
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pdm == NULL)
|
||
|
|
{
|
||
|
|
cbOutputSize = cModes * (sizeof(DEVMODEW) + DRIVER_EXTRA_SIZE);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Now copy the information for the supported modes back into the output
|
||
|
|
// buffer
|
||
|
|
//
|
||
|
|
|
||
|
|
cbOutputSize = 0;
|
||
|
|
|
||
|
|
pVideoTemp = pVideoModeInformation;
|
||
|
|
|
||
|
|
do
|
||
|
|
{
|
||
|
|
if (pVideoTemp->Length != 0)
|
||
|
|
{
|
||
|
|
if (cOutputModes == 0)
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Zero the entire structure to start off with.
|
||
|
|
//
|
||
|
|
|
||
|
|
memset(pdm, 0, sizeof(DEVMODEW));
|
||
|
|
|
||
|
|
//
|
||
|
|
// Set the name of the device to the name of the DLL.
|
||
|
|
//
|
||
|
|
|
||
|
|
memcpy(pdm->dmDeviceName, DLL_NAME, sizeof(DLL_NAME));
|
||
|
|
|
||
|
|
pdm->dmSpecVersion = DM_SPECVERSION;
|
||
|
|
pdm->dmDriverVersion = DM_SPECVERSION;
|
||
|
|
pdm->dmSize = sizeof(DEVMODEW);
|
||
|
|
pdm->dmDriverExtra = DRIVER_EXTRA_SIZE;
|
||
|
|
|
||
|
|
pdm->dmBitsPerPel = pVideoTemp->NumberOfPlanes *
|
||
|
|
pVideoTemp->BitsPerPlane;
|
||
|
|
pdm->dmPelsWidth = pVideoTemp->VisScreenWidth;
|
||
|
|
pdm->dmPelsHeight = pVideoTemp->VisScreenHeight;
|
||
|
|
pdm->dmDisplayFrequency = pVideoTemp->Frequency;
|
||
|
|
pdm->dmDisplayFlags = 0;
|
||
|
|
|
||
|
|
pdm->dmFields = DM_BITSPERPEL |
|
||
|
|
DM_PELSWIDTH |
|
||
|
|
DM_PELSHEIGHT |
|
||
|
|
DM_DISPLAYFREQUENCY |
|
||
|
|
DM_DISPLAYFLAGS ;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Go to the next DEVMODE entry in the buffer.
|
||
|
|
//
|
||
|
|
|
||
|
|
cOutputModes--;
|
||
|
|
|
||
|
|
pdm = (LPDEVMODEW) ( ((ULONG_PTR)pdm) + sizeof(DEVMODEW)
|
||
|
|
+ DRIVER_EXTRA_SIZE);
|
||
|
|
|
||
|
|
cbOutputSize += (sizeof(DEVMODEW) + DRIVER_EXTRA_SIZE);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
pVideoTemp = (PVIDEO_MODE_INFORMATION)
|
||
|
|
(((PUCHAR)pVideoTemp) + cbModeSize);
|
||
|
|
|
||
|
|
} while (--cModes);
|
||
|
|
}
|
||
|
|
|
||
|
|
EngFreeMem(pVideoModeInformation);
|
||
|
|
|
||
|
|
return cbOutputSize;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
VOID DrvSynchronize(
|
||
|
|
IN DHPDEV dhpdev,
|
||
|
|
IN RECTL *prcl)
|
||
|
|
{
|
||
|
|
|
||
|
|
}
|