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https://github.com/reactos/reactos.git
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544 lines
17 KiB
C
544 lines
17 KiB
C
/*
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* PROJECT: Win32 subsystem
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* LICENSE: See COPYING in the top level directory
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* FILE: win32ss/gdi/dib/dib24bpp.c
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* PURPOSE: Device Independant Bitmap functions, 24bpp
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* PROGRAMMERS: Jason Filby
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* Thomas Bluemel
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* Gregor Anich
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*/
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#include <win32k.h>
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#define NDEBUG
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#include <debug.h>
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VOID
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DIB_24BPP_PutPixel(SURFOBJ *SurfObj, LONG x, LONG y, ULONG c)
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{
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PBYTE addr = (PBYTE)SurfObj->pvScan0 + (y * SurfObj->lDelta) + (x << 1) + x;
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*(PUSHORT)(addr) = c & 0xFFFF;
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*(addr + 2) = (c >> 16) & 0xFF;
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}
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ULONG
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DIB_24BPP_GetPixel(SURFOBJ *SurfObj, LONG x, LONG y)
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{
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PBYTE addr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + (x << 1) + x;
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return *(PUSHORT)(addr) + (*(addr + 2) << 16);
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}
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VOID
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DIB_24BPP_VLine(SURFOBJ *SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
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{
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PBYTE addr = (PBYTE)SurfObj->pvScan0 + y1 * SurfObj->lDelta + (x << 1) + x;
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LONG lDelta = SurfObj->lDelta;
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c &= 0xFFFFFF;
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while(y1++ < y2)
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{
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*(PUSHORT)(addr) = c & 0xFFFF;
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*(addr + 2) = (BYTE)(c >> 16);
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addr += lDelta;
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}
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}
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BOOLEAN
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DIB_24BPP_BitBltSrcCopy(PBLTINFO BltInfo)
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{
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LONG i, j, sx, sy, xColor, f1;
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PBYTE SourceBits, DestBits, SourceLine, DestLine;
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PBYTE SourceBits_4BPP, SourceLine_4BPP;
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PWORD SourceBits_16BPP, SourceLine_16BPP;
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DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + (BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) + BltInfo->DestRect.left * 3;
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switch(BltInfo->SourceSurface->iBitmapFormat)
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{
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case BMF_1BPP:
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sx = BltInfo->SourcePoint.x;
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sy = BltInfo->SourcePoint.y;
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for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
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{
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sx = BltInfo->SourcePoint.x;
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for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
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{
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if(DIB_1BPP_GetPixel(BltInfo->SourceSurface, sx, sy) == 0)
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{
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DIB_24BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 0));
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} else {
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DIB_24BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 1));
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}
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sx++;
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}
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sy++;
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}
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break;
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case BMF_4BPP:
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SourceBits_4BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + (BltInfo->SourcePoint.x >> 1);
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for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
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{
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SourceLine_4BPP = SourceBits_4BPP;
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DestLine = DestBits;
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sx = BltInfo->SourcePoint.x;
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f1 = sx & 1;
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for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
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{
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xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest,
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(*SourceLine_4BPP & altnotmask[f1]) >> (4 * (1 - f1)));
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*DestLine++ = xColor & 0xff;
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*(PWORD)DestLine = (WORD)(xColor >> 8);
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DestLine += 2;
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if(f1 == 1) { SourceLine_4BPP++; f1 = 0; } else { f1 = 1; }
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sx++;
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}
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SourceBits_4BPP += BltInfo->SourceSurface->lDelta;
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DestBits += BltInfo->DestSurface->lDelta;
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}
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break;
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case BMF_8BPP:
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SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;
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DestLine = DestBits;
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for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
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{
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SourceBits = SourceLine;
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DestBits = DestLine;
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for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
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{
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xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceBits);
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*DestBits = xColor & 0xff;
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*(PWORD)(DestBits + 1) = (WORD)(xColor >> 8);
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SourceBits += 1;
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DestBits += 3;
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}
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SourceLine += BltInfo->SourceSurface->lDelta;
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DestLine += BltInfo->DestSurface->lDelta;
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}
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break;
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case BMF_16BPP:
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SourceBits_16BPP = (PWORD)((PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x);
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for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
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{
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SourceLine_16BPP = SourceBits_16BPP;
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DestLine = DestBits;
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for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
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{
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xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceLine_16BPP);
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*DestLine++ = xColor & 0xff;
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*(PWORD)DestLine = (WORD)(xColor >> 8);
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DestLine += 2;
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SourceLine_16BPP++;
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}
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SourceBits_16BPP = (PWORD)((PBYTE)SourceBits_16BPP + BltInfo->SourceSurface->lDelta);
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DestBits += BltInfo->DestSurface->lDelta;
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}
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break;
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case BMF_24BPP:
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if (NULL == BltInfo->XlateSourceToDest || 0 != (BltInfo->XlateSourceToDest->flXlate & XO_TRIVIAL))
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{
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if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
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{
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SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 3 * BltInfo->SourcePoint.x;
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for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
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{
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RtlMoveMemory(DestBits, SourceBits, 3 * (BltInfo->DestRect.right - BltInfo->DestRect.left));
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SourceBits += BltInfo->SourceSurface->lDelta;
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DestBits += BltInfo->DestSurface->lDelta;
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}
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}
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else
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{
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SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0 + ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta) + 3 * BltInfo->SourcePoint.x;
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DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta) + 3 * BltInfo->DestRect.left;
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for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
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{
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RtlMoveMemory(DestBits, SourceBits, 3 * (BltInfo->DestRect.right - BltInfo->DestRect.left));
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SourceBits -= BltInfo->SourceSurface->lDelta;
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DestBits -= BltInfo->DestSurface->lDelta;
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}
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}
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}
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else
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{
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sx = BltInfo->SourcePoint.x;
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sy = BltInfo->SourcePoint.y;
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for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
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{
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sx = BltInfo->SourcePoint.x;
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for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
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{
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DWORD pixel = DIB_24BPP_GetPixel(BltInfo->SourceSurface, sx, sy);
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DIB_24BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, pixel));
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sx++;
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}
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sy++;
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}
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}
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break;
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case BMF_32BPP:
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SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 4 * BltInfo->SourcePoint.x;
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DestLine = DestBits;
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for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
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{
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SourceBits = SourceLine;
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DestBits = DestLine;
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for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
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{
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xColor = XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *((PDWORD) SourceBits));
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*DestBits = xColor & 0xff;
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*(PWORD)(DestBits + 1) = (WORD)(xColor >> 8);
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SourceBits += 4;
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DestBits += 3;
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}
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SourceLine += BltInfo->SourceSurface->lDelta;
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DestLine += BltInfo->DestSurface->lDelta;
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}
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break;
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default:
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DbgPrint("DIB_24BPP_Bitblt: Unhandled Source BPP: %u\n", BitsPerFormat(BltInfo->SourceSurface->iBitmapFormat));
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return FALSE;
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}
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return TRUE;
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}
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BOOLEAN
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DIB_24BPP_BitBlt(PBLTINFO BltInfo)
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{
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LONG DestX, DestY;
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LONG SourceX, SourceY;
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LONG PatternY = 0;
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ULONG Dest, Source = 0, Pattern = 0;
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BOOL UsesSource;
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BOOL UsesPattern;
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PBYTE DestBits;
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UsesSource = ROP4_USES_SOURCE(BltInfo->Rop4);
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UsesPattern = ROP4_USES_PATTERN(BltInfo->Rop4);
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SourceY = BltInfo->SourcePoint.y;
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DestBits = (PBYTE)(
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(PBYTE)BltInfo->DestSurface->pvScan0 +
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(BltInfo->DestRect.left << 1) + BltInfo->DestRect.left +
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BltInfo->DestRect.top * BltInfo->DestSurface->lDelta);
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if (UsesPattern)
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{
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if (BltInfo->PatternSurface)
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{
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PatternY = (BltInfo->DestRect.top - BltInfo->BrushOrigin.y) %
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BltInfo->PatternSurface->sizlBitmap.cy;
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}
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else
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{
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if (BltInfo->Brush)
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Pattern = BltInfo->Brush->iSolidColor;
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}
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}
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for (DestY = BltInfo->DestRect.top; DestY < BltInfo->DestRect.bottom; DestY++)
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{
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SourceX = BltInfo->SourcePoint.x;
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for (DestX = BltInfo->DestRect.left; DestX < BltInfo->DestRect.right; DestX++, DestBits += 3, SourceX++)
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{
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Dest = *((PUSHORT)DestBits) + (*(DestBits + 2) << 16);
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if (UsesSource)
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{
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Source = DIB_GetSource(BltInfo->SourceSurface, SourceX, SourceY, BltInfo->XlateSourceToDest);
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}
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if (BltInfo->PatternSurface)
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{
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Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX - BltInfo->BrushOrigin.x) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY);
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}
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Dest = DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern) & 0xFFFFFF;
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*(PUSHORT)(DestBits) = Dest & 0xFFFF;
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*(DestBits + 2) = (BYTE)(Dest >> 16);
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}
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SourceY++;
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if (BltInfo->PatternSurface)
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{
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PatternY++;
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PatternY %= BltInfo->PatternSurface->sizlBitmap.cy;
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}
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DestBits -= (BltInfo->DestRect.right - BltInfo->DestRect.left) * 3;
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DestBits += BltInfo->DestSurface->lDelta;
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}
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return TRUE;
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}
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/* BitBlt Optimize */
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BOOLEAN
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DIB_24BPP_ColorFill(SURFOBJ* DestSurface, RECTL* DestRect, ULONG color)
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{
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LONG DestY;
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#if defined(_M_IX86) && !defined(_MSC_VER)
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PBYTE xaddr = (PBYTE)DestSurface->pvScan0 + DestRect->top * DestSurface->lDelta + (DestRect->left << 1) + DestRect->left;
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PBYTE addr;
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ULONG Count;
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ULONG xCount=DestRect->right - DestRect->left;
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for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
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{
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Count = xCount;
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addr = xaddr;
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xaddr = (PBYTE)((ULONG_PTR)addr + DestSurface->lDelta);
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if (Count < 8)
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{
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/* For small fills, don't bother doing anything fancy */
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while (Count--)
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{
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*(PUSHORT)(addr) = color;
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addr += 2;
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*(addr) = color >> 16;
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addr += 1;
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}
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}
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else
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{
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/* Align to 4-byte address */
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while (0 != ((ULONG_PTR) addr & 0x3))
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{
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*(PUSHORT)(addr) = color;
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addr += 2;
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*(addr) = color >> 16;
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addr += 1;
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Count--;
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}
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/* If the color we need to fill with is 0ABC, then the final mem pattern
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* (note little-endianness) would be:
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*
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* |C.B.A|C.B.A|C.B.A|C.B.A| <- pixel borders
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* |C.B.A.C|B.A.C.B|A.C.B.A| <- ULONG borders
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*
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* So, taking endianness into account again, we need to fill with these
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* ULONGs: CABC BCAB ABCA */
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/* This is about 30% faster than the generic C code below */
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__asm__ __volatile__ (
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"movl %1, %%ecx\n\t"
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"andl $0xffffff, %%ecx\n\t" /* 0ABC */
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"movl %%ecx, %%ebx\n\t" /* Construct BCAB in ebx */
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"shrl $8, %%ebx\n\t"
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"movl %%ecx, %%eax\n\t"
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"shll $16, %%eax\n\t"
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"orl %%eax, %%ebx\n\t"
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"movl %%ecx, %%edx\n\t" /* Construct ABCA in edx */
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"shll $8, %%edx\n\t"
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"movl %%ecx, %%eax\n\t"
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"shrl $16, %%eax\n\t"
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"orl %%eax, %%edx\n\t"
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"movl %%ecx, %%eax\n\t" /* Construct CABC in eax */
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"shll $24, %%eax\n\t"
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"orl %%ecx, %%eax\n\t"
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"movl %2, %%ecx\n\t" /* Load count */
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"shr $2, %%ecx\n\t"
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"movl %3, %%edi\n" /* Load dest */
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"1:\n\t"
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"movl %%eax, (%%edi)\n\t" /* Store 4 pixels, 12 bytes */
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"movl %%ebx, 4(%%edi)\n\t"
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"movl %%edx, 8(%%edi)\n\t"
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"addl $12, %%edi\n\t"
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"dec %%ecx\n\t"
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"jnz 1b\n\t"
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"movl %%edi, %0"
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: "=m"(addr)
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: "m"(color), "m"(Count), "m"(addr)
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: "%eax", "%ebx", "%ecx", "%edx", "%edi");
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Count = Count & 0x03;
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while (0 != Count--)
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{
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*(PUSHORT)(addr) = color;
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addr += 2;
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*(addr) = color >> 16;
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addr += 1;
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}
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}
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}
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#else
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for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
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{
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DIB_24BPP_HLine(DestSurface, DestRect->left, DestRect->right, DestY, color);
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}
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#endif
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return TRUE;
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}
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BOOLEAN
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DIB_24BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
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RECTL* DestRect, RECTL *SourceRect,
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XLATEOBJ *ColorTranslation, ULONG iTransColor)
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{
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LONG X, Y, SourceX, SourceY = 0, wd;
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ULONG Source = 0, Dest;
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BYTE *DestBits;
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LONG DstHeight;
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LONG DstWidth;
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LONG SrcHeight;
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LONG SrcWidth;
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DstHeight = DestRect->bottom - DestRect->top;
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DstWidth = DestRect->right - DestRect->left;
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SrcHeight = SourceRect->bottom - SourceRect->top;
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SrcWidth = SourceRect->right - SourceRect->left;
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DestBits = (BYTE*)((PBYTE)DestSurf->pvScan0 +
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(DestRect->left * 3) +
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DestRect->top * DestSurf->lDelta);
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wd = DestSurf->lDelta - ((DestRect->right - DestRect->left) * 3);
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for(Y = DestRect->top; Y < DestRect->bottom; Y++)
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{
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SourceY = SourceRect->top+(Y - DestRect->top) * SrcHeight / DstHeight;
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for(X = DestRect->left; X < DestRect->right; X++, DestBits += 3)
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{
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SourceX = SourceRect->left+(X - DestRect->left) * SrcWidth / DstWidth;
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if (SourceX >= 0 && SourceY >= 0 &&
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SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
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{
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Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
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if(Source != iTransColor)
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{
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Dest = XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFFFFFF;
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*(PUSHORT)(DestBits) = Dest & 0xFFFF;
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*(DestBits + 2) = (BYTE)(Dest >> 16);
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}
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}
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}
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DestBits = (BYTE*)((ULONG_PTR)DestBits + wd);
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}
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return TRUE;
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}
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typedef union {
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ULONG ul;
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struct {
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UCHAR red;
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UCHAR green;
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UCHAR blue;
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UCHAR alpha;
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} col;
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} NICEPIXEL32;
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static __inline UCHAR
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Clamp8(ULONG val)
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{
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return (val > 255) ? 255 : (UCHAR)val;
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}
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BOOLEAN
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DIB_24BPP_AlphaBlend(SURFOBJ* Dest, SURFOBJ* Source, RECTL* DestRect,
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RECTL* SourceRect, CLIPOBJ* ClipRegion,
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XLATEOBJ* ColorTranslation, BLENDOBJ* BlendObj)
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{
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INT Rows, Cols, SrcX, SrcY;
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register PUCHAR Dst;
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BLENDFUNCTION BlendFunc;
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register NICEPIXEL32 DstPixel, SrcPixel;
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UCHAR Alpha;
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//UCHAR SrcBpp;
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DPRINT("DIB_24BPP_AlphaBlend: srcRect: (%d,%d)-(%d,%d), dstRect: (%d,%d)-(%d,%d)\n",
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SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom,
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DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);
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BlendFunc = BlendObj->BlendFunction;
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if (BlendFunc.BlendOp != AC_SRC_OVER)
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{
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DPRINT1("BlendOp != AC_SRC_OVER\n");
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return FALSE;
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}
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if (BlendFunc.BlendFlags != 0)
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{
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DPRINT1("BlendFlags != 0\n");
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return FALSE;
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}
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if ((BlendFunc.AlphaFormat & ~AC_SRC_ALPHA) != 0)
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{
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DPRINT1("Unsupported AlphaFormat (0x%x)\n", BlendFunc.AlphaFormat);
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return FALSE;
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}
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if ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0 &&
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BitsPerFormat(Source->iBitmapFormat) != 32)
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{
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DPRINT1("Source bitmap must be 32bpp when AC_SRC_ALPHA is set\n");
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return FALSE;
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}
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Dst = (PUCHAR)((ULONG_PTR)Dest->pvScan0 + (DestRect->top * Dest->lDelta) +
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(DestRect->left * 3));
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//SrcBpp = BitsPerFormat(Source->iBitmapFormat);
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Rows = 0;
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SrcY = SourceRect->top;
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while (++Rows <= DestRect->bottom - DestRect->top)
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{
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Cols = 0;
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SrcX = SourceRect->left;
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while (++Cols <= DestRect->right - DestRect->left)
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{
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SrcPixel.ul = DIB_GetSource(Source, SrcX, SrcY, ColorTranslation);
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SrcPixel.col.red = (SrcPixel.col.red * BlendFunc.SourceConstantAlpha) / 255;
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SrcPixel.col.green = (SrcPixel.col.green * BlendFunc.SourceConstantAlpha) / 255;
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SrcPixel.col.blue = (SrcPixel.col.blue * BlendFunc.SourceConstantAlpha) / 255;
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if (!(BlendFunc.AlphaFormat & AC_SRC_ALPHA))
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{
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Alpha = BlendFunc.SourceConstantAlpha ;
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}
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else
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{
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Alpha = (SrcPixel.col.alpha * BlendFunc.SourceConstantAlpha) / 255;
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}
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DstPixel.col.red = Clamp8((*Dst * (255 - Alpha)) / 255 + SrcPixel.col.red) ;
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DstPixel.col.green = Clamp8((*(Dst+1) * (255 - Alpha) / 255 + SrcPixel.col.green)) ;
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DstPixel.col.blue = Clamp8((*(Dst+2) * (255 - Alpha)) / 255 + SrcPixel.col.blue) ;
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*Dst++ = DstPixel.col.red;
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*Dst++ = DstPixel.col.green;
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*Dst++ = DstPixel.col.blue;
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SrcX = SourceRect->left + (Cols*(SourceRect->right - SourceRect->left))/(DestRect->right - DestRect->left);
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}
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Dst = (PUCHAR)((ULONG_PTR)Dest->pvScan0 + ((DestRect->top + Rows) * Dest->lDelta) +
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(DestRect->left*3));
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SrcY = SourceRect->top + (Rows*(SourceRect->bottom - SourceRect->top))/(DestRect->bottom - DestRect->top);
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}
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return TRUE;
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}
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/* EOF */
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