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https://github.com/reactos/reactos.git
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380 lines
12 KiB
C
380 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/dib4bpp.c
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* PURPOSE: Device Independant Bitmap functions, 4bpp
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* PROGRAMMERS: Jason Filby
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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_4BPP_PutPixel(SURFOBJ *SurfObj, LONG x, LONG y, ULONG c)
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{
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PBYTE addr = (PBYTE)SurfObj->pvScan0 + (x>>1) + y * SurfObj->lDelta;
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*addr = (*addr & notmask[x&1]) | (BYTE)(c << ((1-(x&1))<<2));
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}
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ULONG
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DIB_4BPP_GetPixel(SURFOBJ *SurfObj, LONG x, LONG y)
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{
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PBYTE addr = (PBYTE)SurfObj->pvScan0 + (x>>1) + y * SurfObj->lDelta;
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return (*addr >> ((1-(x&1))<<2)) & 0x0f;
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}
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VOID
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DIB_4BPP_HLine(SURFOBJ *SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
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{
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PBYTE addr = (PBYTE)SurfObj->pvScan0 + (x1>>1) + y * SurfObj->lDelta;
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LONG cx = x1;
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while(cx < x2)
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{
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*addr = (*addr & notmask[x1&1]) | (BYTE)(c << ((1-(x1&1))<<2));
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if((++x1 & 1) == 0)
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++addr;
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++cx;
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}
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}
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VOID
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DIB_4BPP_VLine(SURFOBJ *SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
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{
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PBYTE addr = SurfObj->pvScan0;
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int lDelta = SurfObj->lDelta;
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addr += (x>>1) + y1 * lDelta;
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while(y1++ < y2)
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{
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*addr = (*addr & notmask[x&1]) | (BYTE)(c << ((1-(x&1))<<2));
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addr += lDelta;
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}
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}
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#ifndef _USE_DIBLIB_
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BOOLEAN
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DIB_4BPP_BitBltSrcCopy(PBLTINFO BltInfo)
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{
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LONG i, j, sx, sy, f2, xColor;
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PBYTE SourceBits_24BPP, SourceLine_24BPP;
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PBYTE DestBits, DestLine, SourceBits_8BPP, SourceLine_8BPP;
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PBYTE SourceBits, SourceLine;
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DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 +
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(BltInfo->DestRect.left >> 1) +
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BltInfo->DestRect.top * BltInfo->DestSurface->lDelta;
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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_4BPP_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_4BPP_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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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 (NULL != BltInfo->XlateSourceToDest)
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{
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DIB_4BPP_PutPixel(BltInfo->DestSurface, i, j, XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, DIB_4BPP_GetPixel(BltInfo->SourceSurface, sx, sy)));
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}
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else
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{
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DIB_4BPP_PutPixel(BltInfo->DestSurface, i, j, DIB_4BPP_GetPixel(BltInfo->SourceSurface, sx, sy));
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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_8BPP:
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SourceBits_8BPP = (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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SourceLine_8BPP = SourceBits_8BPP;
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DestLine = DestBits;
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f2 = BltInfo->DestRect.left & 1;
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for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
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{
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*DestLine = (*DestLine & notmask[f2]) |
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(BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceLine_8BPP)) << ((4 * (1 - f2))));
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if(f2 == 1) { DestLine++; f2 = 0; } else { f2 = 1; }
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SourceLine_8BPP++;
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}
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SourceBits_8BPP += 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_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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f2 = BltInfo->DestRect.left & 1;
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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 = (*DestBits & notmask[f2]) |
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(BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor)) << ((4 * (1 - f2))));
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if(f2 == 1) { DestBits++; f2 = 0; } else { f2 = 1; }
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SourceBits += 2;
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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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SourceBits_24BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x * 3;
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for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
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{
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SourceLine_24BPP = SourceBits_24BPP;
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DestLine = DestBits;
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f2 = BltInfo->DestRect.left & 1;
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for (i=BltInfo->DestRect.left; i<BltInfo->DestRect.right; i++)
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{
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xColor = (*(SourceLine_24BPP + 2) << 0x10) +
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(*(SourceLine_24BPP + 1) << 0x08) +
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(*(SourceLine_24BPP));
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*DestLine = (*DestLine & notmask[f2]) |
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(BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor)) << ((4 * (1 - f2))));
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if(f2 == 1) { DestLine++; f2 = 0; } else { f2 = 1; }
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SourceLine_24BPP+=3;
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}
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SourceBits_24BPP += 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_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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f2 = BltInfo->DestRect.left & 1;
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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 = (*DestBits & notmask[f2]) |
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(BYTE)((XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor)) << ((4 * (1 - f2))));
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if(f2 == 1) { DestBits++; f2 = 0; } else { f2 = 1; }
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SourceBits += 4;
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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_4BPP_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_4BPP_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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BOOLEAN UsesSource;
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BOOLEAN UsesPattern;
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PULONG DestBits;
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LONG RoundedRight;
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static const ULONG ExpandSolidColor[16] =
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{
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0x00000000 /* 0 */,
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0x11111111 /* 1 */,
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0x22222222 /* 2 */,
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0x33333333 /* 3 */,
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0x44444444 /* 4 */,
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0x55555555 /* 5 */,
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0x66666666 /* 6 */,
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0x77777777 /* 7 */,
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0x88888888 /* 8 */,
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0x99999999 /* 9 */,
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0xAAAAAAAA /* 10 */,
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0xBBBBBBBB /* 11 */,
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0xCCCCCCCC /* 12 */,
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0xDDDDDDDD /* 13 */,
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0xEEEEEEEE /* 14 */,
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0xFFFFFFFF /* 15 */,
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};
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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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RoundedRight = BltInfo->DestRect.right -
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((BltInfo->DestRect.right - BltInfo->DestRect.left) & 0x7);
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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 = ExpandSolidColor[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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DestBits = (PULONG)(
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(PBYTE)BltInfo->DestSurface->pvScan0 +
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(BltInfo->DestRect.left >> 1) +
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DestY * BltInfo->DestSurface->lDelta);
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SourceX = BltInfo->SourcePoint.x;
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DestX = BltInfo->DestRect.left;
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if (DestX & 0x1)
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{
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Dest = DIB_4BPP_GetPixel(BltInfo->DestSurface, DestX, DestY);
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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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DIB_4BPP_PutPixel(BltInfo->DestSurface, DestX, DestY, DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern) & 0xF);
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DestX++;
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SourceX++;
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DestBits = (PULONG)((ULONG_PTR)DestBits + 1);
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}
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for (; DestX < RoundedRight; DestX += 8, SourceX += 8, DestBits++)
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{
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Dest = *DestBits;
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if (UsesSource)
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{
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Source =
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(DIB_GetSource(BltInfo->SourceSurface, SourceX + 1, SourceY, BltInfo->XlateSourceToDest)) |
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(DIB_GetSource(BltInfo->SourceSurface, SourceX + 0, SourceY, BltInfo->XlateSourceToDest) << 4) |
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(DIB_GetSource(BltInfo->SourceSurface, SourceX + 3, SourceY, BltInfo->XlateSourceToDest) << 8) |
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(DIB_GetSource(BltInfo->SourceSurface, SourceX + 2, SourceY, BltInfo->XlateSourceToDest) << 12) |
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(DIB_GetSource(BltInfo->SourceSurface, SourceX + 5, SourceY, BltInfo->XlateSourceToDest) << 16) |
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(DIB_GetSource(BltInfo->SourceSurface, SourceX + 4, SourceY, BltInfo->XlateSourceToDest) << 20) |
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(DIB_GetSource(BltInfo->SourceSurface, SourceX + 7, SourceY, BltInfo->XlateSourceToDest) << 24) |
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(DIB_GetSource(BltInfo->SourceSurface, SourceX + 6, SourceY, BltInfo->XlateSourceToDest) << 28);
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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 + 1) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY);
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Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 0) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 4;
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Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 3) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 8;
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Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 2) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 12;
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Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 5) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 16;
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Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 4) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 20;
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Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 7) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 24;
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Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 6) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY) << 28;
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}
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*DestBits = DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern);
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}
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/* Process the rest of pixel on the line */
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for (; DestX < BltInfo->DestRect.right; DestX++, SourceX++)
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{
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Dest = DIB_4BPP_GetPixel(BltInfo->DestSurface, DestX, DestY);
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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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DIB_4BPP_PutPixel(BltInfo->DestSurface, DestX, DestY, DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern) & 0xF);
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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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}
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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_4BPP_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_4BPP_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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#endif // !_USE_DIBLIB_
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BOOLEAN
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DIB_4BPP_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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return FALSE;
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}
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/* EOF */
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