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)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;
}
BOOL bInitializeModeFields(
PDEV* ppdev,
GDIINFO* pgdi,
DEVINFO* pdi,
DEVMODEW* pdm)
{
ULONG cModes;
PVIDEO_MODE_INFORMATION pVideoBuffer;
PVIDEO_MODE_INFORMATION pVideoModeSelected;
PVIDEO_MODE_INFORMATION pVideoTemp;
BOOL bSelectDefault;
VIDEO_MODE_INFORMATION VideoModeInformation;
ULONG cbModeSize;
// Call the miniport to get mode information
cModes = getAvailableModes(ppdev->hDriver, &pVideoBuffer, &cbModeSize);
if (cModes == 0)
goto ReturnFalse;
// Now see if the requested mode has a match in that table.
pVideoModeSelected = NULL;
pVideoTemp = pVideoBuffer;
if ((pdm->dmPelsWidth == 0) &&
(pdm->dmPelsHeight == 0) &&
(pdm->dmBitsPerPel == 0) &&
(pdm->dmDisplayFrequency == 0))
{
DISPDBG((1, "Default mode requested"));
bSelectDefault = TRUE;
}
else
{
DISPDBG((1, "Requested mode..."));
DISPDBG((1, " Screen width -- %li", pdm->dmPelsWidth));
DISPDBG((1, " Screen height -- %li", pdm->dmPelsHeight));
DISPDBG((1, " Bits per pel -- %li", pdm->dmBitsPerPel));
DISPDBG((1, " Frequency -- %li", pdm->dmDisplayFrequency));
bSelectDefault = FALSE;
}
while (cModes--)
{
if (pVideoTemp->Length != 0)
{
DISPDBG((2, " Checking against miniport mode:"));
DISPDBG((2, " Screen width -- %li", pVideoTemp->VisScreenWidth));
DISPDBG((2, " Screen height -- %li", pVideoTemp->VisScreenHeight));
DISPDBG((2, " Bits per pel -- %li", pVideoTemp->BitsPerPlane *
pVideoTemp->NumberOfPlanes));
DISPDBG((2, " Frequency -- %li", pVideoTemp->Frequency));
if (bSelectDefault ||
((pVideoTemp->VisScreenWidth == pdm->dmPelsWidth) &&
(pVideoTemp->VisScreenHeight == pdm->dmPelsHeight) &&
(pVideoTemp->BitsPerPlane *
pVideoTemp->NumberOfPlanes == pdm->dmBitsPerPel) &&
(pVideoTemp->Frequency == pdm->dmDisplayFrequency)))
{
pVideoModeSelected = pVideoTemp;
DISPDBG((1, "...Found a mode match!"));
break;
}
}
pVideoTemp = (PVIDEO_MODE_INFORMATION)
(((PUCHAR)pVideoTemp) + cbModeSize);
}
// If no mode has been found, return an error
if (pVideoModeSelected == NULL)
{
DISPDBG((1, "...Couldn't find a mode match!"));
EngFreeMem(pVideoBuffer);
goto ReturnFalse;
}
// We have chosen the one we want. Save it in a stack buffer and
// get rid of allocated memory before we forget to free it.
VideoModeInformation = *pVideoModeSelected;
EngFreeMem(pVideoBuffer);
// Set up screen information from the mini-port:
ppdev->ulMode = VideoModeInformation.ModeIndex;
ppdev->cxScreen = VideoModeInformation.VisScreenWidth;
ppdev->cyScreen = VideoModeInformation.VisScreenHeight;
ppdev->iBitmapFormat = BMF_4BPP;
DISPDBG((1, "ScreenStride: %lx", VideoModeInformation.ScreenStride));
ppdev->flHooks = (HOOK_BITBLT |
HOOK_TEXTOUT |
HOOK_COPYBITS |
HOOK_STROKEPATH |
HOOK_PAINT);
// Fill in the GDIINFO data structure with the default 4bpp values:
*pgdi = ggdiDefault;
// Now overwrite the defaults with the relevant information returned
// from the kernel driver:
pgdi->ulHorzSize = VideoModeInformation.XMillimeter;
pgdi->ulVertSize = VideoModeInformation.YMillimeter;
pgdi->ulHorzRes = VideoModeInformation.VisScreenWidth;
pgdi->ulVertRes = VideoModeInformation.VisScreenHeight;
pgdi->ulPanningHorzRes = VideoModeInformation.VisScreenWidth;
pgdi->ulPanningVertRes = VideoModeInformation.VisScreenHeight;
pgdi->cBitsPixel = VideoModeInformation.BitsPerPlane;
pgdi->cPlanes = VideoModeInformation.NumberOfPlanes;
pgdi->ulVRefresh = VideoModeInformation.Frequency;
pgdi->ulDACRed = VideoModeInformation.NumberRedBits;
pgdi->ulDACGreen = VideoModeInformation.NumberGreenBits;
pgdi->ulDACBlue = VideoModeInformation.NumberBlueBits;
pgdi->ulLogPixelsX = pdm->dmLogPixels;
pgdi->ulLogPixelsY = pdm->dmLogPixels;
// Fill in the devinfo structure with the default 4bpp values:
*pdi = gdevinfoDefault;
return(TRUE);
ReturnFalse:
DISPDBG((0, "Failed bInitializeModeFields"));
return(FALSE);
}
BOOL bInitPDEV(
PPDEV ppdev,
DEVMODEW *pDevMode,
GDIINFO *pGdiInfo,
DEVINFO *pDevInfo)
{
ULONG cModes;
PVIDEO_MODE_INFORMATION pVideoBuffer, pVideoModeSelected, pVideoTemp;
BOOL bSelectDefault;
ULONG cbModeSize;
//
// calls the miniport to get mode information.
//
cModes = getAvailableModes(ppdev->hDriver, &pVideoBuffer, &cbModeSize);
if (cModes == 0)
{
DISPDBG((0, "no available modes\n"));
return(FALSE);
}
//
// Determine if we are looking for a default mode.
//
if ( ((pDevMode->dmPelsWidth) ||
(pDevMode->dmPelsHeight) ||
(pDevMode->dmBitsPerPel) ||
(pDevMode->dmDisplayFlags) ||
(pDevMode->dmDisplayFrequency)) == 0)
{
bSelectDefault = TRUE;
}
else
{
bSelectDefault = FALSE;
}
//
// Now see if the requested mode has a match in that table.
//
pVideoModeSelected = NULL;
pVideoTemp = pVideoBuffer;
//
// Note: Not all vga minports support the frequency field. Those
// that do not support fill it in with zero. Also, if the registry
// entry is set to 0, we will ignore the freq.
//
while (cModes--)
{
if (pVideoTemp->Length != 0)
{
if (bSelectDefault ||
((pVideoTemp->VisScreenWidth == pDevMode->dmPelsWidth) &&
(pVideoTemp->VisScreenHeight == pDevMode->dmPelsHeight) &&
(pVideoTemp->BitsPerPlane *
pVideoTemp->NumberOfPlanes == pDevMode->dmBitsPerPel) &&
(pVideoTemp->Frequency == pDevMode->dmDisplayFrequency)))
{
pVideoModeSelected = pVideoTemp;
DISPDBG((1, "Found a match\n")) ;
break;
}
}
pVideoTemp = (PVIDEO_MODE_INFORMATION)
(((PUCHAR)pVideoTemp) + cbModeSize);
}
//
// If no mode has been found, return an error
//
if (pVideoModeSelected == NULL)
{
DISPDBG((0, "no valid modes\n"));
EngFreeMem(pVideoBuffer);
return(FALSE);
}
//
// Save the mode number we selected
//
ppdev->ulModeNum = pVideoModeSelected->ModeIndex;
//
// Set the displayed surface dimensions from the DEVMODE
//
ppdev->sizlSurf.cx = pVideoModeSelected->VisScreenWidth;
ppdev->sizlSurf.cy = pVideoModeSelected->VisScreenHeight;
//
// Set the GDI info that varies with resolution
//
pGdiInfo->ulHorzRes = pVideoModeSelected->VisScreenWidth;
pGdiInfo->ulVertRes = pVideoModeSelected->VisScreenHeight;
pGdiInfo->ulPanningHorzRes = pVideoModeSelected->VisScreenWidth;
pGdiInfo->ulPanningVertRes = pVideoModeSelected->VisScreenHeight;
pGdiInfo->ulHorzSize = pVideoModeSelected->XMillimeter;
pGdiInfo->ulVertSize = pVideoModeSelected->YMillimeter;
pGdiInfo->ulDevicePelsDPI = (pVideoModeSelected->VisScreenWidth * 254)/2400;
pGdiInfo->ulVRefresh = pVideoModeSelected->Frequency;
pGdiInfo->ulLogPixelsX = pDevMode->dmLogPixels;
pGdiInfo->ulLogPixelsY = pDevMode->dmLogPixels;
if (!(pVideoModeSelected->AttributeFlags & VIDEO_MODE_NO_OFF_SCREEN))
{
ppdev->fl |= DRIVER_OFFSCREEN_REFRESHED;
}
EngFreeMem(pVideoBuffer);
return TRUE;
}
BOOL NTAPI bInitPDEV(
PPDEV ppdev,
DEVMODEW *pDevMode,
GDIINFO *pGdiInfo,
DEVINFO *pDevInfo)
{
ULONG cModes;
PVIDEO_MODE_INFORMATION pVideoBuffer, pVideoModeSelected, pVideoTemp;
VIDEO_COLOR_CAPABILITIES colorCapabilities;
ULONG ulTemp;
BOOL bSelectDefault;
ULONG cbModeSize;
//
// calls the miniport to get mode information.
//
cModes = getAvailableModes(ppdev->hDriver, &pVideoBuffer, &cbModeSize);
if (cModes == 0)
{
return(FALSE);
}
//
// Now see if the requested mode has a match in that table.
//
pVideoModeSelected = NULL;
pVideoTemp = pVideoBuffer;
if ((pDevMode->dmPelsWidth == 0) &&
(pDevMode->dmPelsHeight == 0) &&
(pDevMode->dmBitsPerPel == 0) &&
(pDevMode->dmDisplayFrequency == 0))
{
DISPDBG((2, "Default mode requested"));
bSelectDefault = TRUE;
}
else
{
// eVb: 2.5 [DDK Change] - Add missing newlines to debug output
DISPDBG((2, "Requested mode...\n"));
DISPDBG((2, " Screen width -- %li\n", pDevMode->dmPelsWidth));
DISPDBG((2, " Screen height -- %li\n", pDevMode->dmPelsHeight));
DISPDBG((2, " Bits per pel -- %li\n", pDevMode->dmBitsPerPel));
DISPDBG((2, " Frequency -- %li\n", pDevMode->dmDisplayFrequency));
// eVb: 2.5 [END]
bSelectDefault = FALSE;
}
while (cModes--)
{
if (pVideoTemp->Length != 0)
{
if (bSelectDefault ||
((pVideoTemp->VisScreenWidth == pDevMode->dmPelsWidth) &&
(pVideoTemp->VisScreenHeight == pDevMode->dmPelsHeight) &&
(pVideoTemp->BitsPerPlane *
pVideoTemp->NumberOfPlanes == pDevMode->dmBitsPerPel) &&
(pVideoTemp->Frequency == pDevMode->dmDisplayFrequency)))
{
pVideoModeSelected = pVideoTemp;
DISPDBG((3, "Found a match\n")) ;
break;
}
}
pVideoTemp = (PVIDEO_MODE_INFORMATION)
(((PUCHAR)pVideoTemp) + cbModeSize);
}
//
// If no mode has been found, return an error
//
if (pVideoModeSelected == NULL)
{
EngFreeMem(pVideoBuffer);
DISPDBG((0,"DISP bInitPDEV failed - no valid modes\n"));
return(FALSE);
}
//
// Fill in the GDIINFO data structure with the information returned from
// the kernel driver.
//
ppdev->ulMode = pVideoModeSelected->ModeIndex;
ppdev->cxScreen = pVideoModeSelected->VisScreenWidth;
ppdev->cyScreen = pVideoModeSelected->VisScreenHeight;
ppdev->ulBitCount = pVideoModeSelected->BitsPerPlane *
pVideoModeSelected->NumberOfPlanes;
ppdev->lDeltaScreen = pVideoModeSelected->ScreenStride;
ppdev->flRed = pVideoModeSelected->RedMask;
ppdev->flGreen = pVideoModeSelected->GreenMask;
ppdev->flBlue = pVideoModeSelected->BlueMask;
pGdiInfo->ulVersion = GDI_DRIVER_VERSION;
pGdiInfo->ulTechnology = DT_RASDISPLAY;
pGdiInfo->ulHorzSize = pVideoModeSelected->XMillimeter;
pGdiInfo->ulVertSize = pVideoModeSelected->YMillimeter;
pGdiInfo->ulHorzRes = ppdev->cxScreen;
pGdiInfo->ulVertRes = ppdev->cyScreen;
pGdiInfo->ulPanningHorzRes = ppdev->cxScreen;
pGdiInfo->ulPanningVertRes = ppdev->cyScreen;
pGdiInfo->cBitsPixel = pVideoModeSelected->BitsPerPlane;
pGdiInfo->cPlanes = pVideoModeSelected->NumberOfPlanes;
pGdiInfo->ulVRefresh = pVideoModeSelected->Frequency;
pGdiInfo->ulBltAlignment = 1; // We don't have accelerated screen-
// to-screen blts, and any
// window alignment is okay
pGdiInfo->ulLogPixelsX = pDevMode->dmLogPixels;
pGdiInfo->ulLogPixelsY = pDevMode->dmLogPixels;
#ifdef MIPS
if (ppdev->ulBitCount == 8)
pGdiInfo->flTextCaps = (TC_RA_ABLE | TC_SCROLLBLT);
else
#endif
pGdiInfo->flTextCaps = TC_RA_ABLE;
pGdiInfo->flRaster = 0; // flRaster is reserved by DDI
pGdiInfo->ulDACRed = pVideoModeSelected->NumberRedBits;
pGdiInfo->ulDACGreen = pVideoModeSelected->NumberGreenBits;
pGdiInfo->ulDACBlue = pVideoModeSelected->NumberBlueBits;
pGdiInfo->ulAspectX = 0x24; // One-to-one aspect ratio
pGdiInfo->ulAspectY = 0x24;
pGdiInfo->ulAspectXY = 0x33;
pGdiInfo->xStyleStep = 1; // A style unit is 3 pels
pGdiInfo->yStyleStep = 1;
pGdiInfo->denStyleStep = 3;
pGdiInfo->ptlPhysOffset.x = 0;
pGdiInfo->ptlPhysOffset.y = 0;
pGdiInfo->szlPhysSize.cx = 0;
pGdiInfo->szlPhysSize.cy = 0;
// RGB and CMY color info.
//
// try to get it from the miniport.
// if the miniport doesn ot support this feature, use defaults.
//
if (EngDeviceIoControl(ppdev->hDriver,
IOCTL_VIDEO_QUERY_COLOR_CAPABILITIES,
NULL,
0,
&colorCapabilities,
sizeof(VIDEO_COLOR_CAPABILITIES),
&ulTemp))
{
DISPDBG((2, "getcolorCapabilities failed \n"));
pGdiInfo->ciDevice.Red.x = 6700;
pGdiInfo->ciDevice.Red.y = 3300;
pGdiInfo->ciDevice.Red.Y = 0;
pGdiInfo->ciDevice.Green.x = 2100;
pGdiInfo->ciDevice.Green.y = 7100;
pGdiInfo->ciDevice.Green.Y = 0;
pGdiInfo->ciDevice.Blue.x = 1400;
pGdiInfo->ciDevice.Blue.y = 800;
pGdiInfo->ciDevice.Blue.Y = 0;
pGdiInfo->ciDevice.AlignmentWhite.x = 3127;
pGdiInfo->ciDevice.AlignmentWhite.y = 3290;
pGdiInfo->ciDevice.AlignmentWhite.Y = 0;
pGdiInfo->ciDevice.RedGamma = 20000;
pGdiInfo->ciDevice.GreenGamma = 20000;
pGdiInfo->ciDevice.BlueGamma = 20000;
}
else
{
pGdiInfo->ciDevice.Red.x = colorCapabilities.RedChromaticity_x;
pGdiInfo->ciDevice.Red.y = colorCapabilities.RedChromaticity_y;
pGdiInfo->ciDevice.Red.Y = 0;
pGdiInfo->ciDevice.Green.x = colorCapabilities.GreenChromaticity_x;
pGdiInfo->ciDevice.Green.y = colorCapabilities.GreenChromaticity_y;
pGdiInfo->ciDevice.Green.Y = 0;
pGdiInfo->ciDevice.Blue.x = colorCapabilities.BlueChromaticity_x;
pGdiInfo->ciDevice.Blue.y = colorCapabilities.BlueChromaticity_y;
pGdiInfo->ciDevice.Blue.Y = 0;
pGdiInfo->ciDevice.AlignmentWhite.x = colorCapabilities.WhiteChromaticity_x;
pGdiInfo->ciDevice.AlignmentWhite.y = colorCapabilities.WhiteChromaticity_y;
pGdiInfo->ciDevice.AlignmentWhite.Y = colorCapabilities.WhiteChromaticity_Y;
// if we have a color device store the three color gamma values,
// otherwise store the unique gamma value in all three.
if (colorCapabilities.AttributeFlags & VIDEO_DEVICE_COLOR)
{
pGdiInfo->ciDevice.RedGamma = colorCapabilities.RedGamma;
pGdiInfo->ciDevice.GreenGamma = colorCapabilities.GreenGamma;
pGdiInfo->ciDevice.BlueGamma = colorCapabilities.BlueGamma;
}
else
{
pGdiInfo->ciDevice.RedGamma = colorCapabilities.WhiteGamma;
pGdiInfo->ciDevice.GreenGamma = colorCapabilities.WhiteGamma;
pGdiInfo->ciDevice.BlueGamma = colorCapabilities.WhiteGamma;
}
};
pGdiInfo->ciDevice.Cyan.x = 0;
pGdiInfo->ciDevice.Cyan.y = 0;
pGdiInfo->ciDevice.Cyan.Y = 0;
pGdiInfo->ciDevice.Magenta.x = 0;
pGdiInfo->ciDevice.Magenta.y = 0;
pGdiInfo->ciDevice.Magenta.Y = 0;
pGdiInfo->ciDevice.Yellow.x = 0;
pGdiInfo->ciDevice.Yellow.y = 0;
pGdiInfo->ciDevice.Yellow.Y = 0;
// No dye correction for raster displays.
pGdiInfo->ciDevice.MagentaInCyanDye = 0;
pGdiInfo->ciDevice.YellowInCyanDye = 0;
pGdiInfo->ciDevice.CyanInMagentaDye = 0;
pGdiInfo->ciDevice.YellowInMagentaDye = 0;
pGdiInfo->ciDevice.CyanInYellowDye = 0;
pGdiInfo->ciDevice.MagentaInYellowDye = 0;
pGdiInfo->ulDevicePelsDPI = 0; // For printers only
pGdiInfo->ulPrimaryOrder = PRIMARY_ORDER_CBA;
// BUGBUG this should be modified to take into account the size
// of the display and the resolution.
pGdiInfo->ulHTPatternSize = HT_PATSIZE_4x4_M;
pGdiInfo->flHTFlags = HT_FLAG_ADDITIVE_PRIMS;
// Fill in the basic devinfo structure
*pDevInfo = gDevInfoFrameBuffer;
// Fill in the rest of the devinfo and GdiInfo structures.
if (ppdev->ulBitCount == 8)
{
// It is Palette Managed.
pGdiInfo->ulNumColors = 20;
pGdiInfo->ulNumPalReg = 1 << ppdev->ulBitCount;
// eVb: 2.7 [DDK CHANGE] - No dithering support
pDevInfo->flGraphicsCaps |= GCAPS_PALMANAGED;
// eVb: 2.7 [END]
pGdiInfo->ulHTOutputFormat = HT_FORMAT_8BPP;
pDevInfo->iDitherFormat = BMF_8BPP;
// Assuming palette is orthogonal - all colors are same size.
ppdev->cPaletteShift = 8 - pGdiInfo->ulDACRed;
}
else
{
pGdiInfo->ulNumColors = (ULONG) (-1);
pGdiInfo->ulNumPalReg = 0;
if (ppdev->ulBitCount == 16)
{
pGdiInfo->ulHTOutputFormat = HT_FORMAT_16BPP;
pDevInfo->iDitherFormat = BMF_16BPP;
}
else if (ppdev->ulBitCount == 24)
{
pGdiInfo->ulHTOutputFormat = HT_FORMAT_24BPP;
pDevInfo->iDitherFormat = BMF_24BPP;
}
else
{
pGdiInfo->ulHTOutputFormat = HT_FORMAT_32BPP;
pDevInfo->iDitherFormat = BMF_32BPP;
}
}
EngFreeMem(pVideoBuffer);
return(TRUE);
}
BOOL bInitPDEV(
PPDEV ppdev,
DEVMODEW *pDevMode)
{
GDIINFO *pGdiInfo;
ULONG cModes;
PVIDEO_MODE_INFORMATION pVideoBuffer, pVideoModeSelected, pVideoTemp;
VIDEO_COLOR_CAPABILITIES colorCapabilities;
ULONG ulTemp;
BOOL bSelectDefault;
ULONG cbModeSize;
pGdiInfo = ppdev->pGdiInfo;
//
// calls the miniport to get mode information.
//
cModes = getAvailableModes(ppdev->hDriver, &pVideoBuffer, &cbModeSize);
if (cModes == 0)
{
DISPDBG((0, "vga64k.dll: no available modes\n"));
return(FALSE);
}
//
// Determine if we are looking for a default mode.
//
if ( ((pDevMode->dmPelsWidth) ||
(pDevMode->dmPelsHeight) ||
(pDevMode->dmBitsPerPel) ||
(pDevMode->dmDisplayFlags) ||
(pDevMode->dmDisplayFrequency)) == 0)
{
bSelectDefault = TRUE;
}
else
{
bSelectDefault = FALSE;
}
//
// Now see if the requested mode has a match in that table.
//
pVideoModeSelected = NULL;
pVideoTemp = pVideoBuffer;
while (cModes--)
{
if (pVideoTemp->Length != 0)
{
if (bSelectDefault ||
((pVideoTemp->VisScreenWidth == pDevMode->dmPelsWidth) &&
(pVideoTemp->VisScreenHeight == pDevMode->dmPelsHeight) &&
(pVideoTemp->BitsPerPlane *
pVideoTemp->NumberOfPlanes == pDevMode->dmBitsPerPel) &&
(pVideoTemp->Frequency == pDevMode->dmDisplayFrequency)))
{
pVideoModeSelected = pVideoTemp;
DISPDBG((2, "vga64k: Found a match\n")) ;
break;
}
}
pVideoTemp = (PVIDEO_MODE_INFORMATION)
(((PUCHAR)pVideoTemp) + cbModeSize);
}
//
// If no mode has been found, return an error
//
if (pVideoModeSelected == NULL)
{
DISPDBG((0, "vga64k.dll: no valid modes\n"));
EngFreeMem(pVideoBuffer);
return(FALSE);
}
//
// Fill in the GDIINFO data structure with the information returned from
// the kernel driver.
//
ppdev->ulMode = pVideoModeSelected->ModeIndex;
ppdev->cxScreen = pVideoModeSelected->VisScreenWidth;
ppdev->cyScreen = pVideoModeSelected->VisScreenHeight;
ppdev->ulBitCount = pVideoModeSelected->BitsPerPlane *
pVideoModeSelected->NumberOfPlanes;
ppdev->lDeltaScreen = pVideoModeSelected->ScreenStride;
ppdev->flRed = pVideoModeSelected->RedMask;
ppdev->flGreen = pVideoModeSelected->GreenMask;
ppdev->flBlue = pVideoModeSelected->BlueMask;
if (!(pVideoModeSelected->AttributeFlags & VIDEO_MODE_NO_OFF_SCREEN))
{
ppdev->fl |= DRIVER_USE_OFFSCREEN;
}
pGdiInfo->ulVersion = GDI_DRIVER_VERSION;
pGdiInfo->ulTechnology = DT_RASDISPLAY;
pGdiInfo->ulHorzSize = pVideoModeSelected->XMillimeter;
pGdiInfo->ulVertSize = pVideoModeSelected->YMillimeter;
pGdiInfo->ulHorzRes = ppdev->cxScreen;
pGdiInfo->ulVertRes = ppdev->cyScreen;
pGdiInfo->ulPanningHorzRes = ppdev->cxScreen;
pGdiInfo->ulPanningVertRes = ppdev->cyScreen;
pGdiInfo->cBitsPixel = pVideoModeSelected->BitsPerPlane;
pGdiInfo->cPlanes = pVideoModeSelected->NumberOfPlanes;
pGdiInfo->ulVRefresh = pVideoModeSelected->Frequency;
pGdiInfo->ulBltAlignment = 1; // We're not accelerated, and we don't
// care about window alignment
pGdiInfo->ulLogPixelsX = pDevMode->dmLogPixels;
pGdiInfo->ulLogPixelsY = pDevMode->dmLogPixels;
pGdiInfo->flTextCaps = TC_RA_ABLE | TC_SCROLLBLT;
pGdiInfo->flRaster = 0; // DDI reservers flRaster
pGdiInfo->ulDACRed = pVideoModeSelected->NumberRedBits;
pGdiInfo->ulDACGreen = pVideoModeSelected->NumberGreenBits;
pGdiInfo->ulDACBlue = pVideoModeSelected->NumberBlueBits;
pGdiInfo->ulAspectX = 0x24; // One-to-one aspect ratio
pGdiInfo->ulAspectY = 0x24;
pGdiInfo->ulAspectXY = 0x33;
pGdiInfo->xStyleStep = 1; // A style unit is 3 pels
pGdiInfo->yStyleStep = 1;
pGdiInfo->denStyleStep = 3;
pGdiInfo->ptlPhysOffset.x = 0;
pGdiInfo->ptlPhysOffset.y = 0;
pGdiInfo->szlPhysSize.cx = 0;
pGdiInfo->szlPhysSize.cy = 0;
// RGB and CMY color info.
// try to get it from the miniport.
// if the miniport doesn ot support this feature, use defaults.
if (EngDeviceIoControl(ppdev->hDriver,
IOCTL_VIDEO_QUERY_COLOR_CAPABILITIES,
NULL,
0,
&colorCapabilities,
sizeof(VIDEO_COLOR_CAPABILITIES),
&ulTemp))
{
DISPDBG((1, "vga64k DISP getcolorCapabilities failed \n"));
pGdiInfo->ciDevice.Red.x = 6700;
pGdiInfo->ciDevice.Red.y = 3300;
pGdiInfo->ciDevice.Red.Y = 0;
pGdiInfo->ciDevice.Green.x = 2100;
pGdiInfo->ciDevice.Green.y = 7100;
pGdiInfo->ciDevice.Green.Y = 0;
pGdiInfo->ciDevice.Blue.x = 1400;
pGdiInfo->ciDevice.Blue.y = 800;
pGdiInfo->ciDevice.Blue.Y = 0;
pGdiInfo->ciDevice.AlignmentWhite.x = 3127;
pGdiInfo->ciDevice.AlignmentWhite.y = 3290;
pGdiInfo->ciDevice.AlignmentWhite.Y = 0;
pGdiInfo->ciDevice.RedGamma = 20000;
pGdiInfo->ciDevice.GreenGamma = 20000;
pGdiInfo->ciDevice.BlueGamma = 20000;
}
else
{
pGdiInfo->ciDevice.Red.x = colorCapabilities.RedChromaticity_x;
pGdiInfo->ciDevice.Red.y = colorCapabilities.RedChromaticity_y;
pGdiInfo->ciDevice.Red.Y = 0;
pGdiInfo->ciDevice.Green.x = colorCapabilities.GreenChromaticity_x;
pGdiInfo->ciDevice.Green.y = colorCapabilities.GreenChromaticity_y;
pGdiInfo->ciDevice.Green.Y = 0;
pGdiInfo->ciDevice.Blue.x = colorCapabilities.BlueChromaticity_x;
pGdiInfo->ciDevice.Blue.y = colorCapabilities.BlueChromaticity_y;
pGdiInfo->ciDevice.Blue.Y = 0;
pGdiInfo->ciDevice.AlignmentWhite.x = colorCapabilities.WhiteChromaticity_x;
pGdiInfo->ciDevice.AlignmentWhite.y = colorCapabilities.WhiteChromaticity_y;
pGdiInfo->ciDevice.AlignmentWhite.Y = colorCapabilities.WhiteChromaticity_Y;
// if we have a color device store the three color gamma values,
// otherwise store the unique gamma value in all three.
if (colorCapabilities.AttributeFlags & VIDEO_DEVICE_COLOR)
{
pGdiInfo->ciDevice.RedGamma = colorCapabilities.RedGamma;
pGdiInfo->ciDevice.GreenGamma = colorCapabilities.GreenGamma;
pGdiInfo->ciDevice.BlueGamma = colorCapabilities.BlueGamma;
}
else
{
pGdiInfo->ciDevice.RedGamma = colorCapabilities.WhiteGamma;
pGdiInfo->ciDevice.GreenGamma = colorCapabilities.WhiteGamma;
pGdiInfo->ciDevice.BlueGamma = colorCapabilities.WhiteGamma;
}
};
pGdiInfo->ciDevice.Cyan.x = 0;
pGdiInfo->ciDevice.Cyan.y = 0;
pGdiInfo->ciDevice.Cyan.Y = 0;
pGdiInfo->ciDevice.Magenta.x = 0;
pGdiInfo->ciDevice.Magenta.y = 0;
pGdiInfo->ciDevice.Magenta.Y = 0;
pGdiInfo->ciDevice.Yellow.x = 0;
pGdiInfo->ciDevice.Yellow.y = 0;
pGdiInfo->ciDevice.Yellow.Y = 0;
// No dye correction for raster displays.
pGdiInfo->ciDevice.MagentaInCyanDye = 0;
pGdiInfo->ciDevice.YellowInCyanDye = 0;
pGdiInfo->ciDevice.CyanInMagentaDye = 0;
pGdiInfo->ciDevice.YellowInMagentaDye = 0;
pGdiInfo->ciDevice.CyanInYellowDye = 0;
pGdiInfo->ciDevice.MagentaInYellowDye = 0;
// Fill in the rest of the devinfo and GdiInfo structures.
pGdiInfo->ulNumColors = (ULONG)-1;
pGdiInfo->ulNumPalReg = 0;
pGdiInfo->ulDevicePelsDPI = 0; // For printers only
pGdiInfo->ulPrimaryOrder = PRIMARY_ORDER_CBA;
pGdiInfo->ulHTPatternSize = HT_PATSIZE_4x4_M;
pGdiInfo->ulHTOutputFormat = HT_FORMAT_16BPP;
pGdiInfo->flHTFlags = HT_FLAG_ADDITIVE_PRIMS;
// Fill in the basic devinfo structure
*(ppdev->pDevInfo) = gDevInfoFrameBuffer;
EngFreeMem(pVideoBuffer);
return(TRUE);
}
