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reactos/win32ss/gdi/dib/dib4bpp.c

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/*
* PROJECT: Win32 subsystem
* LICENSE: See COPYING in the top level directory
* FILE: win32ss/gdi/dib/dib4bpp.c
* PURPOSE: Device Independant Bitmap functions, 4bpp
* PROGRAMMERS: Jason Filby
*/
#include <win32k.h>
#define NDEBUG
#include <debug.h>
VOID
DIB_4BPP_PutPixel(SURFOBJ *SurfObj, LONG x, LONG y, ULONG c)
{
PBYTE addr = (PBYTE)SurfObj->pvScan0 + (x>>1) + y * SurfObj->lDelta;
*addr = (*addr & notmask[x&1]) | (BYTE)(c << ((1-(x&1))<<2));
}
ULONG
DIB_4BPP_GetPixel(SURFOBJ *SurfObj, LONG x, LONG y)
{
PBYTE addr = (PBYTE)SurfObj->pvScan0 + (x>>1) + y * SurfObj->lDelta;
return (*addr >> ((1-(x&1))<<2)) & 0x0f;
}
VOID
DIB_4BPP_HLine(SURFOBJ *SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
{
PBYTE addr = (PBYTE)SurfObj->pvScan0 + (x1>>1) + y * SurfObj->lDelta;
LONG cx = x1;
while(cx < x2)
{
*addr = (*addr & notmask[x1&1]) | (BYTE)(c << ((1-(x1&1))<<2));
if((++x1 & 1) == 0)
++addr;
++cx;
}
}
VOID
DIB_4BPP_VLine(SURFOBJ *SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
{
PBYTE addr = SurfObj->pvScan0;
int lDelta = SurfObj->lDelta;
addr += (x>>1) + y1 * lDelta;
while(y1++ < y2)
{
*addr = (*addr & notmask[x&1]) | (BYTE)(c << ((1-(x&1))<<2));
addr += lDelta;
}
}
#ifndef _USE_DIBLIB_
BOOLEAN
DIB_4BPP_BitBltSrcCopy(PBLTINFO BltInfo)
{
LONG i, j, sx, sy, f2, xColor;
PBYTE SourceBits_24BPP, SourceLine_24BPP;
PBYTE DestBits, DestLine, SourceBits_8BPP, SourceLine_8BPP;
PBYTE SourceBits, SourceLine;
DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 +
(BltInfo->DestRect.left >> 1) +
BltInfo->DestRect.top * BltInfo->DestSurface->lDelta;
switch (BltInfo->SourceSurface->iBitmapFormat)
{
case BMF_1BPP:
sx = BltInfo->SourcePoint.x;
sy = BltInfo->SourcePoint.y;
for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
{
sx = BltInfo->SourcePoint.x;
for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
{
if(DIB_1BPP_GetPixel(BltInfo->SourceSurface, sx, sy) == 0)
{
DIB_4BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 0));
}
else
{
DIB_4BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 1));
}
sx++;
}
sy++;
}
break;
case BMF_4BPP:
sy = BltInfo->SourcePoint.y;
for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
{
sx = BltInfo->SourcePoint.x;
for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
{
if (NULL != BltInfo->XlateSourceToDest)
{
DIB_4BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, DIB_4BPP_GetPixel(BltInfo->SourceSurface, sx, sy)));
}
else
{
DIB_4BPP_PutPixel(BltInfo->DestSurface, i, j, DIB_4BPP_GetPixel(BltInfo->SourceSurface, sx, sy));
}
sx++;
}
sy++;
}
break;
case BMF_8BPP:
SourceBits_8BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;
for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
{
SourceLine_8BPP = SourceBits_8BPP;
DestLine = DestBits;
f2 = BltInfo->DestRect.left & 1;
for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
{
*DestLine = (*DestLine & notmask[f2]) |
(BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceLine_8BPP)) << ((4 * (1 - f2))));
if(f2 == 1) { DestLine++; f2 = 0; } else { f2 = 1; }
SourceLine_8BPP++;
}
SourceBits_8BPP += BltInfo->SourceSurface->lDelta;
DestBits += BltInfo->DestSurface->lDelta;
}
break;
case BMF_16BPP:
SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
DestLine = DestBits;
for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
{
SourceBits = SourceLine;
DestBits = DestLine;
f2 = BltInfo->DestRect.left & 1;
for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
{
xColor = *((PWORD) SourceBits);
*DestBits = (*DestBits & notmask[f2]) |
(BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor)) << ((4 * (1 - f2))));
if(f2 == 1) { DestBits++; f2 = 0; } else { f2 = 1; }
SourceBits += 2;
}
SourceLine += BltInfo->SourceSurface->lDelta;
DestLine += BltInfo->DestSurface->lDelta;
}
break;
case BMF_24BPP:
SourceBits_24BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x * 3;
for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
{
SourceLine_24BPP = SourceBits_24BPP;
DestLine = DestBits;
f2 = BltInfo->DestRect.left & 1;
for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
{
xColor = (*(SourceLine_24BPP + 2) << 0x10) +
(*(SourceLine_24BPP + 1) << 0x08) +
(*(SourceLine_24BPP));
*DestLine = (*DestLine & notmask[f2]) |
(BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor)) << ((4 * (1 - f2))));
if(f2 == 1) { DestLine++; f2 = 0; } else { f2 = 1; }
SourceLine_24BPP+=3;
}
SourceBits_24BPP += BltInfo->SourceSurface->lDelta;
DestBits += BltInfo->DestSurface->lDelta;
}
break;
case BMF_32BPP:
SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 4 * BltInfo->SourcePoint.x;
DestLine = DestBits;
for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
{
SourceBits = SourceLine;
DestBits = DestLine;
f2 = BltInfo->DestRect.left & 1;
for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
{
xColor = *((PDWORD) SourceBits);
*DestBits = (*DestBits & notmask[f2]) |
(BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor)) << ((4 * (1 - f2))));
if(f2 == 1) { DestBits++; f2 = 0; } else { f2 = 1; }
SourceBits += 4;
}
SourceLine += BltInfo->SourceSurface->lDelta;
DestLine += BltInfo->DestSurface->lDelta;
}
break;
default:
DbgPrint("DIB_4BPP_Bitblt: Unhandled Source BPP: %u\n", BitsPerFormat(BltInfo->SourceSurface->iBitmapFormat));
return FALSE;
}
return(TRUE);
}
BOOLEAN
DIB_4BPP_BitBlt(PBLTINFO BltInfo)
{
LONG DestX, DestY;
LONG SourceX, SourceY;
LONG PatternY = 0;
ULONG Dest, Source = 0, Pattern = 0;
BOOLEAN UsesSource;
BOOLEAN UsesPattern;
PULONG DestBits;
LONG RoundedRight;
static const ULONG ExpandSolidColor[16] =
{
0x00000000 /* 0 */,
0x11111111 /* 1 */,
0x22222222 /* 2 */,
0x33333333 /* 3 */,
0x44444444 /* 4 */,
0x55555555 /* 5 */,
0x66666666 /* 6 */,
0x77777777 /* 7 */,
0x88888888 /* 8 */,
0x99999999 /* 9 */,
0xAAAAAAAA /* 10 */,
0xBBBBBBBB /* 11 */,
0xCCCCCCCC /* 12 */,
0xDDDDDDDD /* 13 */,
0xEEEEEEEE /* 14 */,
0xFFFFFFFF /* 15 */,
};
UsesSource = ROP4_USES_SOURCE(BltInfo->Rop4);
UsesPattern = ROP4_USES_PATTERN(BltInfo->Rop4);
SourceY = BltInfo->SourcePoint.y;
RoundedRight = BltInfo->DestRect.right -
((BltInfo->DestRect.right - BltInfo->DestRect.left) & 0x7);
if (UsesPattern)
{
if (BltInfo->PatternSurface)
{
PatternY = (BltInfo->DestRect.top + BltInfo->BrushOrigin.y) %
BltInfo->PatternSurface->sizlBitmap.cy;
}
else
{
if (BltInfo->Brush)
Pattern = ExpandSolidColor[BltInfo->Brush->iSolidColor];
}
}
for (DestY = BltInfo->DestRect.top; DestY < BltInfo->DestRect.bottom; DestY++)
{
DestBits = (PULONG)(
(PBYTE)BltInfo->DestSurface->pvScan0 +
(BltInfo->DestRect.left >> 1) +
DestY * BltInfo->DestSurface->lDelta);
SourceX = BltInfo->SourcePoint.x;
DestX = BltInfo->DestRect.left;
if (DestX & 0x1)
{
Dest = DIB_4BPP_GetPixel(BltInfo->DestSurface, DestX, DestY);
if (UsesSource)
{
Source = DIB_GetSource(BltInfo->SourceSurface, SourceX, SourceY, BltInfo->XlateSourceToDest);
}
if (BltInfo->PatternSurface)
{
Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY);
}
DIB_4BPP_PutPixel(BltInfo->DestSurface, DestX, DestY, DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern) & 0xF);
DestX++;
SourceX++;
DestBits = (PULONG)((ULONG_PTR)DestBits + 1);
}
for (; DestX < RoundedRight; DestX += 8, SourceX += 8, DestBits++)
{
Dest = *DestBits;
if (UsesSource)
{
Source =
(DIB_GetSource(BltInfo->SourceSurface, SourceX + 1, SourceY, BltInfo->XlateSourceToDest)) |
(DIB_GetSource(BltInfo->SourceSurface, SourceX + 0, SourceY, BltInfo->XlateSourceToDest) << 4) |
(DIB_GetSource(BltInfo->SourceSurface, SourceX + 3, SourceY, BltInfo->XlateSourceToDest) << 8) |
(DIB_GetSource(BltInfo->SourceSurface, SourceX + 2, SourceY, BltInfo->XlateSourceToDest) << 12) |
(DIB_GetSource(BltInfo->SourceSurface, SourceX + 5, SourceY, BltInfo->XlateSourceToDest) << 16) |
(DIB_GetSource(BltInfo->SourceSurface, SourceX + 4, SourceY, BltInfo->XlateSourceToDest) << 20) |
(DIB_GetSource(BltInfo->SourceSurface, SourceX + 7, SourceY, BltInfo->XlateSourceToDest) << 24) |
(DIB_GetSource(BltInfo->SourceSurface, SourceX + 6, SourceY, BltInfo->XlateSourceToDest) << 28);
}
if (BltInfo->PatternSurface)
{
Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 1) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY);
Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 0) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 4;
Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 3) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 8;
Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 2) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 12;
Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 5) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 16;
Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 4) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 20;
Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 7) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 24;
Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 6) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 28;
}
*DestBits = DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern);
}
/* Process the rest of pixel on the line */
for (; DestX < BltInfo->DestRect.right; DestX++, SourceX++)
{
Dest = DIB_4BPP_GetPixel(BltInfo->DestSurface, DestX, DestY);
if (UsesSource)
{
Source = DIB_GetSource(BltInfo->SourceSurface, SourceX, SourceY, BltInfo->XlateSourceToDest);
}
if (BltInfo->PatternSurface)
{
Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY);
}
DIB_4BPP_PutPixel(BltInfo->DestSurface, DestX, DestY, DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern) & 0xF);
}
SourceY++;
if (BltInfo->PatternSurface)
{
PatternY++;
PatternY %= BltInfo->PatternSurface->sizlBitmap.cy;
}
}
return TRUE;
}
/* BitBlt Optimize */
BOOLEAN
DIB_4BPP_ColorFill(SURFOBJ* DestSurface, RECTL* DestRect, ULONG color)
{
LONG DestY;
for (DestY = DestRect->top; DestY < DestRect->bottom; DestY++)
{
DIB_4BPP_HLine(DestSurface, DestRect->left, DestRect->right, DestY, color);
}
return TRUE;
}
#endif // !_USE_DIBLIB_
BOOLEAN
DIB_4BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
RECTL* DestRect, RECTL *SourceRect,
XLATEOBJ *ColorTranslation, ULONG iTransColor)
{
return FALSE;
}
/* EOF */
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