1 #undef WIN32_LEAN_AND_MEAN
4 #include <win32k/bitmaps.h>
5 #include <win32k/debug.h>
7 #include <ddk/winddi.h>
8 #include "../eng/objects.h"
11 VOID DIB_4BPP_PutPixel(PSURFOBJ SurfObj, LONG x, LONG y, ULONG c)
13 PBYTE addr = SurfObj->pvScan0;
15 addr += (x>>1) + y * SurfObj->lDelta;
16 *addr = (*addr & notmask[x&1]) | (c << ((1-(x&1))<<2));
19 ULONG DIB_4BPP_GetPixel(PSURFOBJ SurfObj, LONG x, LONG y)
21 PBYTE addr = SurfObj->pvScan0;
23 return (addr[(x>>1) + y * SurfObj->lDelta] >> ((1-(x&1))<<2) ) & 0x0f;
26 VOID DIB_4BPP_HLine(PSURFOBJ SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
28 PBYTE addr = SurfObj->pvScan0 + (x1>>1) + y * SurfObj->lDelta;
32 *addr = (*addr & notmask[x1&1]) | (c << ((1-(x1&1))<<2));
39 VOID DIB_4BPP_VLine(PSURFOBJ SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
41 PBYTE addr = SurfObj->pvScan0;
42 int lDelta = SurfObj->lDelta;
44 addr += (x>>1) + y1 * lDelta;
46 *addr = (*addr & notmask[x&1]) | (c << ((1-(x&1))<<2));
51 BOOLEAN DIB_4BPP_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
52 SURFGDI *DestGDI, SURFGDI *SourceGDI,
53 PRECTL DestRect, POINTL *SourcePoint,
54 XLATEOBJ *ColorTranslation)
56 LONG i, j, sx, sy, f1, f2, xColor;
57 PBYTE SourceBits_24BPP, SourceLine_24BPP;
58 PBYTE DestBits, DestLine, SourceBits_8BPP, SourceLine_8BPP;
59 PBYTE SourceBits, SourceLine;
61 DestBits = DestSurf->pvScan0 + (DestRect->left>>1) + DestRect->top * DestSurf->lDelta;
63 switch(SourceGDI->BitsPerPixel)
69 for (j=DestRect->top; j<DestRect->bottom; j++)
72 for (i=DestRect->left; i<DestRect->right; i++)
74 if(DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0)
76 DIB_4BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, 0));
78 DIB_4BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, 1));
89 for (j=DestRect->top; j<DestRect->bottom; j++)
93 for (i=DestRect->left; i<DestRect->right; i++)
95 DIB_4BPP_PutPixel(DestSurf, i, j, XLATEOBJ_iXlate(ColorTranslation, DIB_4BPP_GetPixel(SourceSurf, sx, sy)));
103 SourceBits_8BPP = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + SourcePoint->x;
105 for (j=DestRect->top; j<DestRect->bottom; j++)
107 SourceLine_8BPP = SourceBits_8BPP;
109 f2 = DestRect->left & 1;
111 for (i=DestRect->left; i<DestRect->right; i++)
113 *DestLine = (*DestLine & notmask[i&1]) |
114 ((XLATEOBJ_iXlate(ColorTranslation, *SourceLine_8BPP)) << ((4 * (1-(i & 1)))));
115 if(f2 == 1) { DestLine++; f2 = 0; } else { f2 = 1; }
119 SourceBits_8BPP += SourceSurf->lDelta;
120 DestBits += DestSurf->lDelta;
125 SourceLine = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + 2 * SourcePoint->x;
128 for (j = DestRect->top; j < DestRect->bottom; j++)
130 SourceBits = SourceLine;
132 f2 = DestRect->left & 1;
134 for (i = DestRect->left; i < DestRect->right; i++)
136 xColor = *((PWORD) SourceBits);
137 *DestBits = (*DestBits & notmask[i&1]) |
138 ((XLATEOBJ_iXlate(ColorTranslation, xColor)) << ((4 * (1-(i & 1)))));
139 if(f2 == 1) { DestBits++; f2 = 0; } else { f2 = 1; }
143 SourceLine += SourceSurf->lDelta;
144 DestLine += DestSurf->lDelta;
149 SourceBits_24BPP = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + SourcePoint->x * 3;
151 for (j=DestRect->top; j<DestRect->bottom; j++)
153 SourceLine_24BPP = SourceBits_24BPP;
155 f2 = DestRect->left & 1;
157 for (i=DestRect->left; i<DestRect->right; i++)
159 xColor = (*(SourceLine_24BPP + 2) << 0x10) +
160 (*(SourceLine_24BPP + 1) << 0x08) +
161 (*(SourceLine_24BPP));
162 *DestLine = (*DestLine & notmask[i&1]) |
163 ((XLATEOBJ_iXlate(ColorTranslation, xColor)) << ((4 * (1-(i & 1)))));
164 if(f2 == 1) { DestLine++; f2 = 0; } else { f2 = 1; }
168 SourceBits_24BPP += SourceSurf->lDelta;
169 DestBits += DestSurf->lDelta;
174 SourceLine = SourceSurf->pvScan0 + (SourcePoint->y * SourceSurf->lDelta) + 4 * SourcePoint->x;
177 for (j = DestRect->top; j < DestRect->bottom; j++)
179 SourceBits = SourceLine;
181 f2 = DestRect->left & 1;
183 for (i = DestRect->left; i < DestRect->right; i++)
185 xColor = *((PDWORD) SourceBits);
186 *DestBits = (*DestBits & notmask[i&1]) |
187 ((XLATEOBJ_iXlate(ColorTranslation, xColor)) << ((4 * (1-(i & 1)))));
188 if(f2 == 1) { DestBits++; f2 = 0; } else { f2 = 1; }
192 SourceLine += SourceSurf->lDelta;
193 DestLine += DestSurf->lDelta;
198 DbgPrint("DIB_4BPP_Bitblt: Unhandled Source BPP: %u\n", SourceGDI->BitsPerPixel);