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![Doug Lyons](/assets/img/avatar_default.png)
Modify dib\dibxxbpp.c programs to understand flipped images. See Videos at CORE-16642 1. Mirroring Horizontally works. 2. Mirroring Vertically works. 3. Rotation 180° works. CORE-16642, CORE-14408, CORE-16634
647 lines
22 KiB
C
647 lines
22 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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* Doug Lyons
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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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#define DEC_OR_INC(var, decTrue, amount) \
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((var) = (decTrue) ? ((var) - (amount)) : ((var) + (amount)))
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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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BOOLEAN bTopToBottom, bLeftToRight;
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DPRINT("DIB_8BPP_BitBltSrcCopy: SrcSurf cx/cy (%d/%d), DestSuft cx/cy (%d/%d) dstRect: (%d,%d)-(%d,%d)\n",
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BltInfo->SourceSurface->sizlBitmap.cx, BltInfo->SourceSurface->sizlBitmap.cy,
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BltInfo->DestSurface->sizlBitmap.cx, BltInfo->DestSurface->sizlBitmap.cy,
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BltInfo->DestRect.left, BltInfo->DestRect.top, BltInfo->DestRect.right, BltInfo->DestRect.bottom);
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/* Get back left to right flip here */
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bLeftToRight = (BltInfo->DestRect.left > BltInfo->DestRect.right);
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/* Check for top to bottom flip needed. */
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bTopToBottom = BltInfo->DestRect.top > BltInfo->DestRect.bottom;
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DPRINT("bTopToBottom is '%d' and bLeftToRight is '%d'.\n", bTopToBottom, bLeftToRight);
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/* Make WellOrdered by making top < bottom and left < right */
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RECTL_vMakeWellOrdered(&BltInfo->DestRect);
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DPRINT("BPP is '%d' & BltInfo->SourcePoint.x is '%d' & BltInfo->SourcePoint.y is '%d'.\n",
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BltInfo->SourceSurface->iBitmapFormat, BltInfo->SourcePoint.x, BltInfo->SourcePoint.y);
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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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DPRINT("1BPP Case Selected with DestRect Width of '%d'.\n",
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BltInfo->DestRect.right - BltInfo->DestRect.left);
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sx = BltInfo->SourcePoint.x;
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/* This sets sy to the top line */
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sy = BltInfo->SourcePoint.y;
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if (bTopToBottom)
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{
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/* This sets sy to the bottom line */
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sy += BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1;
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}
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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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if (bLeftToRight)
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{
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/* This sets the sx to the rightmost pixel */
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sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
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}
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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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DEC_OR_INC(sx, bLeftToRight, 1);
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}
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DEC_OR_INC(sy, bTopToBottom, 1);
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}
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break;
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case BMF_4BPP:
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DPRINT("4BPP Case Selected with DestRect Width of '%d'.\n",
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BltInfo->DestRect.right - BltInfo->DestRect.left);
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/* This sets SourceBits_4BPP to the top line */
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SourceBits_4BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + (BltInfo->SourcePoint.x >> 1);
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if (bTopToBottom)
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{
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/* This sets SourceBits_4BPP to the bottom line */
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SourceBits_4BPP += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta;
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}
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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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if (bLeftToRight)
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{
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/* This sets sx to the rightmost pixel */
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sx += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
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}
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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)
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{
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DEC_OR_INC(SourceLine_4BPP, bLeftToRight, 1);
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f1 = 0;
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}
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else
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{
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f1 = 1;
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}
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DEC_OR_INC(sx, bLeftToRight, 1);
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}
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DEC_OR_INC(SourceBits_4BPP, bTopToBottom, BltInfo->SourceSurface->lDelta);
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}
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break;
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case BMF_8BPP:
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DPRINT("8BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n",
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BltInfo->DestRect.left, BltInfo->DestRect.top,
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BltInfo->DestRect.right, BltInfo->DestRect.bottom,
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BltInfo->DestRect.right - BltInfo->DestRect.left);
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if ((BltInfo->XlateSourceToDest == NULL ||
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(BltInfo->XlateSourceToDest->flXlate & XO_TRIVIAL) != 0) &&
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(!bTopToBottom && !bLeftToRight))
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{
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if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
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{
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DPRINT("BltInfo->DestRect.top < BltInfo->SourcePoint.y.\n");
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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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DPRINT("BltInfo->DestRect.top >= BltInfo->SourcePoint.y.\n");
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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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DPRINT("XO_TRIVIAL is NOT TRUE or we have flips.\n");
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if (!bTopToBottom && !bLeftToRight)
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/* **Note: Indent is purposefully less than desired to keep reviewable differences to a minimum for PR** */
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{
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if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
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{
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DPRINT("Dest.top < SourcePoint.y.\n");
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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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DPRINT("Dest.top >= SourcePoint.y.\n");
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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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else
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{
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/* Buffering for source and destination flip overlaps. Fixes KHMZ MirrorTest CORE-16642 */
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BOOL OneDone = FALSE;
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if (bLeftToRight)
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{
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DPRINT("Flip is bLeftToRight.\n");
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/* Allocate enough pixels for a row in BYTE's */
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BYTE *store = ExAllocatePoolWithTag(NonPagedPool,
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BltInfo->DestRect.right - BltInfo->DestRect.left + 1, TAG_DIB);
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if (store == NULL)
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{
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DPRINT1("Storage Allocation Failed.\n");
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return FALSE;
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}
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WORD Index;
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/* This sets SourceLine to the top line */
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SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 +
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(BltInfo->SourcePoint.y *
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BltInfo->SourceSurface->lDelta) +
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BltInfo->SourcePoint.x;
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/* This set the DestLine to the top line */
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DestLine = (PBYTE)BltInfo->DestSurface->pvScan0 +
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(BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) +
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BltInfo->DestRect.left;
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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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/* This sets SourceBits to the rightmost pixel */
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SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1);
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Index = 0;
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for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
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{
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store[Index] = (BYTE)XLATEOBJ_iXlate(
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BltInfo->XlateSourceToDest,
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*SourceBits);
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SourceBits--;
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Index++;
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}
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Index = 0;
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for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
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{
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*DestBits = store[Index];
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DestBits++;
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Index++;
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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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ExFreePoolWithTag(store, TAG_DIB);
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OneDone = TRUE;
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}
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if (bTopToBottom)
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{
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DPRINT("Flip is bTopToBottom.\n");
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DWORD Index;
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/* Allocate enough pixels for a column in BYTE's */
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BYTE *store = ExAllocatePoolWithTag(NonPagedPool,
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BltInfo->DestRect.bottom - BltInfo->DestRect.top + 1, TAG_DIB);
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if (store == NULL)
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{
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DPRINT1("Storage Allocation Failed.\n");
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return FALSE;
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}
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/* The OneDone flag indicates that we are flipping for bTopToBottom and bLeftToRight
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* and have already completed the bLeftToRight. So we will lose our first flip output
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* unless we work with its output which is at the destination site. So in this case
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* our new Source becomes the previous outputs Destination. */
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if (OneDone)
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{
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/* This sets SourceLine to the bottom line of our previous destination */
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SourceLine = (PBYTE)BltInfo->DestSurface->pvScan0 +
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(BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) + BltInfo->DestRect.left +
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(BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->DestSurface->lDelta;
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}
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else
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{
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/* This sets SourceLine to the bottom line */
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SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 +
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((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1)
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* BltInfo->SourceSurface->lDelta) +
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BltInfo->SourcePoint.x;
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}
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/* This set the DestLine to the top line */
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DestLine = (PBYTE)BltInfo->DestSurface->pvScan0 +
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(BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) +
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BltInfo->DestRect.left;
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/* Read columns */
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for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
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{
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DestBits = DestLine;
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SourceBits = SourceLine;
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Index = 0;
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/* Read up the column and store the pixels */
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for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
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{
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store[Index] = (BYTE)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, *SourceBits);
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/* Go up a line */
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SourceBits -= BltInfo->SourceSurface->lDelta;
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Index++;
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}
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Index = 0;
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/* Get the stored pixel and copy then down the column */
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for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
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{
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*DestBits = store[Index];
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/* Go down a line */
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DestBits += BltInfo->SourceSurface->lDelta;
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Index++;
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}
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/* Index to next column */
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SourceLine += 1;
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DestLine += 1;
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}
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ExFreePoolWithTag(store, TAG_DIB);
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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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DPRINT("16BPP Case Selected with DestRect Width of '%d'.\n",
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BltInfo->DestRect.right - BltInfo->DestRect.left);
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DPRINT("BMF_16BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n",
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BltInfo->DestRect.left, BltInfo->DestRect.top,
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BltInfo->DestRect.right, BltInfo->DestRect.bottom,
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BltInfo->DestRect.right - BltInfo->DestRect.left);
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SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
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if (bTopToBottom)
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{
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/* This sets SourceLine to the bottom line */
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SourceLine += (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta;;
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}
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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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if (bLeftToRight)
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{
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/* This sets SourceBits to the rightmost pixel */
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SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1) * 2;
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}
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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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DEC_OR_INC(SourceBits, bLeftToRight, 2);
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DestBits += 1;
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}
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DEC_OR_INC(SourceLine, bTopToBottom, 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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DPRINT("24BPP-dstRect: (%d,%d)-(%d,%d) and Width of '%d'.\n",
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BltInfo->DestRect.left, BltInfo->DestRect.top,
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BltInfo->DestRect.right, BltInfo->DestRect.bottom,
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BltInfo->DestRect.right - BltInfo->DestRect.left);
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SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 3 * BltInfo->SourcePoint.x;
|
|
DestLine = DestBits;
|
|
|
|
if (bTopToBottom)
|
|
{
|
|
/* This sets SourceLine to the bottom line */
|
|
SourceLine += BltInfo->SourceSurface->lDelta * (BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1);
|
|
}
|
|
|
|
for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
|
|
{
|
|
SourceBits = SourceLine;
|
|
DestBits = DestLine;
|
|
|
|
if (bLeftToRight)
|
|
{
|
|
/* This sets the SourceBits to the rightmost pixel */
|
|
SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1) * 3;
|
|
}
|
|
|
|
for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
|
|
{
|
|
xColor = (*(SourceBits + 2) << 0x10) +
|
|
(*(SourceBits + 1) << 0x08) +
|
|
(*(SourceBits));
|
|
*DestBits = (BYTE)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
|
|
DEC_OR_INC(SourceBits, bLeftToRight, 3);
|
|
DestBits += 1;
|
|
}
|
|
DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
|
|
DestLine += BltInfo->DestSurface->lDelta;
|
|
}
|
|
break;
|
|
|
|
case BMF_32BPP:
|
|
DPRINT("32BPP Case Selected with DestRect Width of '%d'.\n",
|
|
BltInfo->DestRect.right - BltInfo->DestRect.left);
|
|
|
|
SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 4 * BltInfo->SourcePoint.x;
|
|
|
|
if (bTopToBottom)
|
|
{
|
|
/* This sets SourceLine to the bottom line */
|
|
SourceLine += BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1;
|
|
}
|
|
DestLine = DestBits;
|
|
|
|
for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
|
|
{
|
|
SourceBits = SourceLine;
|
|
DestBits = DestLine;
|
|
|
|
if (bLeftToRight)
|
|
{
|
|
/* This sets SourceBits to the rightmost pixel */
|
|
SourceBits += (BltInfo->DestRect.right - BltInfo->DestRect.left - 1) * 4;
|
|
}
|
|
|
|
for (i = BltInfo->DestRect.left; i < BltInfo->DestRect.right; i++)
|
|
{
|
|
xColor = *((PDWORD) SourceBits);
|
|
*DestBits = (BYTE)XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, xColor);
|
|
|
|
DEC_OR_INC(SourceBits, bLeftToRight, 4);
|
|
DestBits += 1;
|
|
}
|
|
DEC_OR_INC(SourceLine, bTopToBottom, BltInfo->SourceSurface->lDelta);
|
|
DestLine += BltInfo->DestSurface->lDelta;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
DPRINT1("DIB_8BPP_Bitblt: Unhandled Source BPP: %u\n", BitsPerFormat(BltInfo->SourceSurface->iBitmapFormat));
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* BitBlt Optimize */
|
|
BOOLEAN
|
|
DIB_8BPP_ColorFill(SURFOBJ* DestSurface, RECTL* DestRect, ULONG color)
|
|
{
|
|
LONG DestY;
|
|
|
|
/* Make WellOrdered by making top < bottom and left < right */
|
|
RECTL_vMakeWellOrdered(DestRect);
|
|
|
|
for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
|
|
{
|
|
DIB_8BPP_HLine(DestSurface, DestRect->left, DestRect->right, DestY, color);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
BOOLEAN
|
|
DIB_8BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
|
|
RECTL* DestRect, RECTL *SourceRect,
|
|
XLATEOBJ *ColorTranslation, ULONG iTransColor)
|
|
{
|
|
LONG RoundedRight, X, Y, SourceX = 0, SourceY = 0;
|
|
ULONG *DestBits, Source, Dest;
|
|
|
|
LONG DstHeight;
|
|
LONG DstWidth;
|
|
LONG SrcHeight;
|
|
LONG SrcWidth;
|
|
|
|
DstHeight = DestRect->bottom - DestRect->top;
|
|
DstWidth = DestRect->right - DestRect->left;
|
|
SrcHeight = SourceRect->bottom - SourceRect->top;
|
|
SrcWidth = SourceRect->right - SourceRect->left;
|
|
|
|
RoundedRight = DestRect->right - ((DestRect->right - DestRect->left) & 0x3);
|
|
DestBits = (ULONG*)((PBYTE)DestSurf->pvScan0 + DestRect->left +
|
|
(DestRect->top * DestSurf->lDelta));
|
|
|
|
for(Y = DestRect->top; Y < DestRect->bottom; Y++)
|
|
{
|
|
DestBits = (ULONG*)((PBYTE)DestSurf->pvScan0 + DestRect->left +
|
|
(Y * DestSurf->lDelta));
|
|
SourceY = SourceRect->top+(Y - DestRect->top) * SrcHeight / DstHeight;
|
|
for (X = DestRect->left; X < RoundedRight; X += 4, DestBits++)
|
|
{
|
|
Dest = *DestBits;
|
|
|
|
SourceX = SourceRect->left+(X - DestRect->left) * SrcWidth / DstWidth;
|
|
if (SourceX >= 0 && SourceY >= 0 &&
|
|
SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
|
|
{
|
|
Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
|
|
if(Source != iTransColor)
|
|
{
|
|
Dest &= 0xFFFFFF00;
|
|
Dest |= (XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFF);
|
|
}
|
|
}
|
|
|
|
SourceX = SourceRect->left+(X+1 - DestRect->left) * SrcWidth / DstWidth;
|
|
if (SourceX >= 0 && SourceY >= 0 &&
|
|
SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
|
|
{
|
|
Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
|
|
if(Source != iTransColor)
|
|
{
|
|
Dest &= 0xFFFF00FF;
|
|
Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 8) & 0xFF00);
|
|
}
|
|
}
|
|
|
|
SourceX = SourceRect->left+(X+2 - DestRect->left) * SrcWidth / DstWidth;
|
|
if (SourceX >= 0 && SourceY >= 0 &&
|
|
SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
|
|
{
|
|
Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
|
|
if(Source != iTransColor)
|
|
{
|
|
Dest &= 0xFF00FFFF;
|
|
Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 16) & 0xFF0000);
|
|
}
|
|
}
|
|
|
|
SourceX = SourceRect->left+(X+3 - DestRect->left) * SrcWidth / DstWidth;
|
|
if (SourceX >= 0 && SourceY >= 0 &&
|
|
SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
|
|
{
|
|
Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
|
|
if(Source != iTransColor)
|
|
{
|
|
Dest &= 0x00FFFFFF;
|
|
Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 24) & 0xFF000000);
|
|
}
|
|
}
|
|
|
|
*DestBits = Dest;
|
|
}
|
|
|
|
if(X < DestRect->right)
|
|
{
|
|
for (; X < DestRect->right; X++)
|
|
{
|
|
SourceX = SourceRect->left+(X - DestRect->left) * SrcWidth / DstWidth;
|
|
if (SourceX >= 0 && SourceY >= 0 &&
|
|
SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
|
|
{
|
|
Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
|
|
if(Source != iTransColor)
|
|
{
|
|
*((BYTE*)DestBits) = (BYTE)(XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFF);
|
|
}
|
|
}
|
|
DestBits = (PULONG)((ULONG_PTR)DestBits + 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* EOF */
|