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https://github.com/reactos/reactos.git
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365 lines
12 KiB
C
365 lines
12 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/dib8bpp.c
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* PURPOSE: Device Independant Bitmap functions, 8bpp
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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_8BPP_PutPixel(SURFOBJ *SurfObj, LONG x, LONG y, ULONG c)
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{
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PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + x;
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*byteaddr = (BYTE)c;
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}
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ULONG
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DIB_8BPP_GetPixel(SURFOBJ *SurfObj, LONG x, LONG y)
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{
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PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + x;
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return (ULONG)(*byteaddr);
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}
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VOID
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DIB_8BPP_HLine(SURFOBJ *SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
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{
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memset((PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta + x1, (BYTE) c, x2 - x1);
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}
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VOID
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DIB_8BPP_VLine(SURFOBJ *SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
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{
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PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y1 * SurfObj->lDelta;
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PBYTE addr = byteaddr + x;
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LONG lDelta = SurfObj->lDelta;
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byteaddr = addr;
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while(y1++ < y2)
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{
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*addr = (BYTE)c;
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addr += lDelta;
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}
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}
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BOOLEAN
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DIB_8BPP_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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DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + (BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) + BltInfo->DestRect.left;
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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_8BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, 0));
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}
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else
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{
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DIB_8BPP_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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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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DIB_8BPP_PutPixel(BltInfo->DestSurface, i, j, xColor);
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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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}
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break;
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case BMF_8BPP:
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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) + 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, 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) + BltInfo->SourcePoint.x;
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DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta) + 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, 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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if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
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{
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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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*DestBits++ = (BYTE)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceBits++);
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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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}
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else
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{
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SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;
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DestLine = (PBYTE)BltInfo->DestSurface->pvScan0 + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta) + 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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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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*DestBits++ = (BYTE)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceBits++);
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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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}
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}
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break;
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case BMF_16BPP:
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SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 2 * 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 = *((PWORD) SourceBits);
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*DestBits = (BYTE)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
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SourceBits += 2;
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DestBits += 1;
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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_24BPP:
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SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 3 * 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 = (*(SourceBits + 2) << 0x10) +
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(*(SourceBits + 1) << 0x08) +
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(*(SourceBits));
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*DestBits = (BYTE)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
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SourceBits += 3;
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DestBits += 1;
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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_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 = *((PDWORD) SourceBits);
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*DestBits = (BYTE)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
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SourceBits += 4;
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DestBits += 1;
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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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DPRINT1("DIB_8BPP_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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/* BitBlt Optimize */
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BOOLEAN
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DIB_8BPP_ColorFill(SURFOBJ* DestSurface, RECTL* DestRect, ULONG color)
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{
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LONG DestY;
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for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
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{
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DIB_8BPP_HLine(DestSurface, DestRect->left, DestRect->right, DestY, color);
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}
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return TRUE;
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}
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BOOLEAN
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DIB_8BPP_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 RoundedRight, X, Y, SourceX = 0, SourceY = 0;
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ULONG *DestBits, Source, Dest;
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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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RoundedRight = DestRect->right - ((DestRect->right - DestRect->left) & 0x3);
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DestBits = (ULONG*)((PBYTE)DestSurf->pvScan0 + DestRect->left +
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(DestRect->top * DestSurf->lDelta));
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for(Y = DestRect->top; Y < DestRect->bottom; Y++)
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{
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DestBits = (ULONG*)((PBYTE)DestSurf->pvScan0 + DestRect->left +
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(Y * DestSurf->lDelta));
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SourceY = SourceRect->top+(Y - DestRect->top) * SrcHeight / DstHeight;
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for (X = DestRect->left; X < RoundedRight; X += 4, DestBits++)
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{
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Dest = *DestBits;
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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 &= 0xFFFFFF00;
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Dest |= (XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFF);
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}
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}
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SourceX = SourceRect->left+(X+1 - 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 &= 0xFFFF00FF;
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Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 8) & 0xFF00);
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}
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}
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SourceX = SourceRect->left+(X+2 - 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 &= 0xFF00FFFF;
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Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 16) & 0xFF0000);
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}
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}
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SourceX = SourceRect->left+(X+3 - 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 &= 0x00FFFFFF;
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Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 24) & 0xFF000000);
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}
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}
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*DestBits = Dest;
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}
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if(X < DestRect->right)
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{
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for (; X < DestRect->right; X++)
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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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*((BYTE*)DestBits) = (BYTE)(XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFF);
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}
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}
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DestBits = (PULONG)((ULONG_PTR)DestBits + 1);
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}
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}
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}
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return TRUE;
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}
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/* EOF */
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