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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
44 lines
1,003 B
C
44 lines
1,003 B
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/dib32bppc.c
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* PURPOSE: C language equivalents of asm optimised 32bpp functions
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* PROGRAMMERS: Jason Filby
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* Magnus Olsen
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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_32BPP_HLine(SURFOBJ *SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
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{
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PBYTE byteaddr = (PBYTE)((ULONG_PTR)SurfObj->pvScan0 + y * SurfObj->lDelta);
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PDWORD addr = (PDWORD)byteaddr + x1;
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LONG cx = x1;
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while(cx < x2)
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{
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*addr = (DWORD)c;
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++addr;
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++cx;
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}
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}
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BOOLEAN
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DIB_32BPP_ColorFill(SURFOBJ* DestSurface, RECTL* DestRect, ULONG color)
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{
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ULONG DestY;
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/* Make WellOrdered by making top < bottom and left < right */
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RECTL_vMakeWellOrdered(DestRect);
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for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
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{
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DIB_32BPP_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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