You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
337 lines
9.5 KiB
337 lines
9.5 KiB
/******************************Module*Header*******************************\
|
|
*
|
|
* *******************
|
|
* * GDI SAMPLE CODE *
|
|
* *******************
|
|
*
|
|
* Module Name: palette.c
|
|
*
|
|
* Palette support.
|
|
*
|
|
* Copyright (c) 1992-1998 Microsoft Corporation
|
|
\**************************************************************************/
|
|
|
|
#include "driver.h"
|
|
|
|
// Global Table defining the 20 Window Default Colors. For 256 color
|
|
// palettes the first 10 must be put at the beginning of the palette
|
|
// and the last 10 at the end of the palette.
|
|
|
|
const PALETTEENTRY BASEPALETTE[20] =
|
|
{
|
|
{ 0, 0, 0, 0 }, // 0
|
|
{ 0x80,0, 0, 0 }, // 1
|
|
{ 0, 0x80,0, 0 }, // 2
|
|
{ 0x80,0x80,0, 0 }, // 3
|
|
{ 0, 0, 0x80,0 }, // 4
|
|
{ 0x80,0, 0x80,0 }, // 5
|
|
{ 0, 0x80,0x80,0 }, // 6
|
|
{ 0xC0,0xC0,0xC0,0 }, // 7
|
|
{ 192, 220, 192, 0 }, // 8
|
|
{ 166, 202, 240, 0 }, // 9
|
|
{ 255, 251, 240, 0 }, // 10
|
|
{ 160, 160, 164, 0 }, // 11
|
|
{ 0x80,0x80,0x80,0 }, // 12
|
|
{ 0xFF,0, 0 ,0 }, // 13
|
|
{ 0, 0xFF,0 ,0 }, // 14
|
|
{ 0xFF,0xFF,0 ,0 }, // 15
|
|
{ 0 ,0, 0xFF,0 }, // 16
|
|
{ 0xFF,0, 0xFF,0 }, // 17
|
|
{ 0, 0xFF,0xFF,0 }, // 18
|
|
{ 0xFF,0xFF,0xFF,0 }, // 19
|
|
};
|
|
|
|
BOOL bInitDefaultPalette(PPDEV ppdev, DEVINFO *pDevInfo);
|
|
|
|
/******************************Public*Routine******************************\
|
|
* bInitPaletteInfo
|
|
*
|
|
* Initializes the palette information for this PDEV.
|
|
*
|
|
* Called by DrvEnablePDEV.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL bInitPaletteInfo(PPDEV ppdev, DEVINFO *pDevInfo)
|
|
{
|
|
if (!bInitDefaultPalette(ppdev, pDevInfo))
|
|
return(FALSE);
|
|
|
|
return(TRUE);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* vDisablePalette
|
|
*
|
|
* Frees resources allocated by bInitPaletteInfo.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
VOID vDisablePalette(PPDEV ppdev)
|
|
{
|
|
// Delete the default palette if we created one.
|
|
|
|
if (ppdev->hpalDefault)
|
|
{
|
|
EngDeletePalette(ppdev->hpalDefault);
|
|
ppdev->hpalDefault = (HPALETTE) 0;
|
|
}
|
|
|
|
if (ppdev->pPal != (PPALETTEENTRY)NULL)
|
|
EngFreeMem((PVOID)ppdev->pPal);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* bInitDefaultPalette
|
|
*
|
|
* Initializes default palette for PDEV.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL bInitDefaultPalette(PPDEV ppdev, DEVINFO *pDevInfo)
|
|
{
|
|
if (ppdev->ulBitCount == 8)
|
|
{
|
|
ULONG ulLoop;
|
|
BYTE jRed,jGre,jBlu;
|
|
|
|
//
|
|
// Allocate our palette
|
|
//
|
|
|
|
ppdev->pPal = (PPALETTEENTRY)EngAllocMem(0, sizeof(PALETTEENTRY) * 256,
|
|
ALLOC_TAG);
|
|
|
|
if ((ppdev->pPal) == NULL) {
|
|
DISPDBG((0, "DISP bInitDefaultPalette() failed EngAllocMem\n"));
|
|
return(FALSE);
|
|
}
|
|
|
|
//
|
|
// Generate 256 (8*4*4) RGB combinations to fill the palette
|
|
//
|
|
|
|
jRed = jGre = jBlu = 0;
|
|
|
|
for (ulLoop = 0; ulLoop < 256; ulLoop++)
|
|
{
|
|
ppdev->pPal[ulLoop].peRed = jRed;
|
|
ppdev->pPal[ulLoop].peGreen = jGre;
|
|
ppdev->pPal[ulLoop].peBlue = jBlu;
|
|
ppdev->pPal[ulLoop].peFlags = (BYTE)0;
|
|
|
|
if (!(jRed += 32))
|
|
if (!(jGre += 32))
|
|
jBlu += 64;
|
|
}
|
|
|
|
//
|
|
// Fill in Windows Reserved Colors from the WIN 3.0 DDK
|
|
// The Window Manager reserved the first and last 10 colors for
|
|
// painting windows borders and for non-palette managed applications.
|
|
//
|
|
|
|
for (ulLoop = 0; ulLoop < 10; ulLoop++)
|
|
{
|
|
//
|
|
// First 10
|
|
//
|
|
|
|
ppdev->pPal[ulLoop] = BASEPALETTE[ulLoop];
|
|
|
|
//
|
|
// Last 10
|
|
//
|
|
|
|
ppdev->pPal[246 + ulLoop] = BASEPALETTE[ulLoop+10];
|
|
}
|
|
|
|
//
|
|
// Create handle for palette.
|
|
//
|
|
|
|
ppdev->hpalDefault =
|
|
pDevInfo->hpalDefault = EngCreatePalette(PAL_INDEXED,
|
|
256,
|
|
(PULONG) ppdev->pPal,
|
|
0,0,0);
|
|
|
|
if (ppdev->hpalDefault == (HPALETTE) 0)
|
|
{
|
|
DISPDBG((0, "DISP bInitDefaultPalette failed EngCreatePalette\n"));
|
|
EngFreeMem(ppdev->pPal);
|
|
return(FALSE);
|
|
}
|
|
|
|
//
|
|
// Initialize the hardware with the initial palette.
|
|
//
|
|
|
|
return(TRUE);
|
|
|
|
} else {
|
|
|
|
ppdev->hpalDefault =
|
|
pDevInfo->hpalDefault = EngCreatePalette(PAL_BITFIELDS,
|
|
0,(PULONG) NULL,
|
|
ppdev->flRed,
|
|
ppdev->flGreen,
|
|
ppdev->flBlue);
|
|
|
|
if (ppdev->hpalDefault == (HPALETTE) 0)
|
|
{
|
|
DISPDBG((0, "DISP bInitDefaultPalette failed EngCreatePalette\n"));
|
|
return(FALSE);
|
|
}
|
|
}
|
|
|
|
return(TRUE);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* bInit256ColorPalette
|
|
*
|
|
* Initialize the hardware's palette registers.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL bInit256ColorPalette(PPDEV ppdev)
|
|
{
|
|
BYTE ajClutSpace[MAX_CLUT_SIZE];
|
|
PVIDEO_CLUT pScreenClut;
|
|
ULONG ulReturnedDataLength;
|
|
ULONG cColors;
|
|
PVIDEO_CLUTDATA pScreenClutData;
|
|
|
|
if (ppdev->ulBitCount == 8)
|
|
{
|
|
//
|
|
// Fill in pScreenClut header info:
|
|
//
|
|
|
|
pScreenClut = (PVIDEO_CLUT) ajClutSpace;
|
|
pScreenClut->NumEntries = 256;
|
|
pScreenClut->FirstEntry = 0;
|
|
|
|
//
|
|
// Copy colours in:
|
|
//
|
|
|
|
cColors = 256;
|
|
pScreenClutData = (PVIDEO_CLUTDATA) (&(pScreenClut->LookupTable[0]));
|
|
|
|
while(cColors--)
|
|
{
|
|
pScreenClutData[cColors].Red = ppdev->pPal[cColors].peRed >>
|
|
ppdev->cPaletteShift;
|
|
pScreenClutData[cColors].Green = ppdev->pPal[cColors].peGreen >>
|
|
ppdev->cPaletteShift;
|
|
pScreenClutData[cColors].Blue = ppdev->pPal[cColors].peBlue >>
|
|
ppdev->cPaletteShift;
|
|
pScreenClutData[cColors].Unused = 0;
|
|
}
|
|
|
|
//
|
|
// Set palette registers:
|
|
//
|
|
|
|
if (EngDeviceIoControl(ppdev->hDriver,
|
|
IOCTL_VIDEO_SET_COLOR_REGISTERS,
|
|
pScreenClut,
|
|
MAX_CLUT_SIZE,
|
|
NULL,
|
|
0,
|
|
&ulReturnedDataLength))
|
|
{
|
|
DISPDBG((0, "Failed bEnablePalette"));
|
|
return(FALSE);
|
|
}
|
|
}
|
|
|
|
DISPDBG((5, "Passed bEnablePalette"));
|
|
|
|
return(TRUE);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* DrvSetPalette
|
|
*
|
|
* DDI entry point for manipulating the palette.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL DrvSetPalette(
|
|
DHPDEV dhpdev,
|
|
PALOBJ* ppalo,
|
|
FLONG fl,
|
|
ULONG iStart,
|
|
ULONG cColors)
|
|
{
|
|
BYTE ajClutSpace[MAX_CLUT_SIZE];
|
|
PVIDEO_CLUT pScreenClut;
|
|
PVIDEO_CLUTDATA pScreenClutData;
|
|
PDEV* ppdev;
|
|
|
|
UNREFERENCED_PARAMETER(fl);
|
|
|
|
ppdev = (PDEV*) dhpdev;
|
|
|
|
//
|
|
// Fill in pScreenClut header info:
|
|
//
|
|
|
|
pScreenClut = (PVIDEO_CLUT) ajClutSpace;
|
|
pScreenClut->NumEntries = (USHORT) cColors;
|
|
pScreenClut->FirstEntry = (USHORT) iStart;
|
|
|
|
pScreenClutData = (PVIDEO_CLUTDATA) (&(pScreenClut->LookupTable[0]));
|
|
|
|
if (cColors != PALOBJ_cGetColors(ppalo, iStart, cColors,
|
|
(ULONG*) pScreenClutData))
|
|
{
|
|
DISPDBG((0, "DrvSetPalette failed PALOBJ_cGetColors\n"));
|
|
return (FALSE);
|
|
}
|
|
|
|
//
|
|
// Set the high reserved byte in each palette entry to 0.
|
|
// Do the appropriate palette shifting to fit in the DAC.
|
|
//
|
|
|
|
if (ppdev->cPaletteShift)
|
|
{
|
|
while(cColors--)
|
|
{
|
|
pScreenClutData[cColors].Red >>= ppdev->cPaletteShift;
|
|
pScreenClutData[cColors].Green >>= ppdev->cPaletteShift;
|
|
pScreenClutData[cColors].Blue >>= ppdev->cPaletteShift;
|
|
pScreenClutData[cColors].Unused = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while(cColors--)
|
|
{
|
|
pScreenClutData[cColors].Unused = 0;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Set palette registers
|
|
//
|
|
|
|
if (EngDeviceIoControl(ppdev->hDriver,
|
|
IOCTL_VIDEO_SET_COLOR_REGISTERS,
|
|
pScreenClut,
|
|
MAX_CLUT_SIZE,
|
|
NULL,
|
|
0,
|
|
&cColors))
|
|
{
|
|
DISPDBG((0, "DrvSetPalette failed EngDeviceIoControl\n"));
|
|
return (FALSE);
|
|
}
|
|
|
|
return(TRUE);
|
|
|
|
}
|