source: trunk/src/gdi32/dibitmap.cpp@ 9554

Last change on this file since 9554 was 9429, checked in by sandervl, 23 years ago

Added debug wrappers for all exports
File size: 21.8 KB
Line 
1/* $Id: dibitmap.cpp,v 1.35 2002-11-26 10:53:07 sandervl Exp $ */
2
3/*
4 * GDI32 dib & bitmap code
5 *
6 * Copyright 1998 Sander van Leeuwen (sandervl@xs4all.nl)
7 * Copyright 1998 Patrick Haller
8 *
9 * Project Odin Software License can be found in LICENSE.TXT
10 *
11 */
12#include <os2win.h>
13#include <stdlib.h>
14#include <stdarg.h>
15#include <string.h>
16#include <misc.h>
17#include <cpuhlp.h>
18#include <winuser32.h>
19#include "dibsect.h"
20#include "rgbcvt.h"
21#include <stats.h>
22#include "oslibgpi.h"
23#include <objhandle.h>
24
25#define DBG_LOCALLOG DBG_dibitmap
26#include "dbglocal.h"
27
28ULONG CalcBitmapSize(ULONG cBits, LONG cx, LONG cy);
29
30//******************************************************************************
31//******************************************************************************
32HBITMAP WIN32API CreateDIBitmap(HDC hdc, const BITMAPINFOHEADER *lpbmih,
33 DWORD fdwInit, const void *lpbInit,
34 const BITMAPINFO *lpbmi, UINT fuUsage)
35{
36 int iHeight;
37 HBITMAP rc;
38 DWORD bitfields[3];
39 WORD *newbits = NULL;
40
41 //SvL: Completely wrong result when creating a 1bpp bitmap here (converted
42 // to 8bpp by Open32)
43 if(lpbmih->biBitCount == 1) {
44 dprintf(("WARNING: CreateDIBitmap doesn't handle 1bpp bitmaps very well!!!!!"));
45 }
46
47 //TEMPORARY HACK TO PREVENT CRASH IN OPEN32 (WSeB GA)
48 iHeight = lpbmih->biHeight;
49 if(lpbmih->biHeight < 0)
50 {
51 dprintf(("GDI32: CreateDIBitmap negative height! (%d,%d)", lpbmih->biWidth, lpbmih->biHeight));
52 //TODO: doesn't work if memory is readonly!!
53 ((BITMAPINFOHEADER *)lpbmih)->biHeight = -lpbmih->biHeight;
54
55 if(lpbInit && fdwInit == CBM_INIT) {
56 // upside down
57 HBITMAP rc = 0;
58 long lLineByte = DIB_GetDIBWidthBytes(lpbmih->biWidth, lpbmih->biBitCount);
59 long lHeight = lpbmih->biHeight;
60
61 newbits = (WORD *)malloc( lLineByte * lHeight );
62 if(newbits) {
63 unsigned char *pbSrc = (unsigned char *)lpbInit + lLineByte * (lHeight - 1);
64 unsigned char *pbDst = (unsigned char *)newbits;
65 for(int y = 0; y < lHeight; y++) {
66 memcpy( pbDst, pbSrc, lLineByte );
67 pbDst += lLineByte;
68 pbSrc -= lLineByte;
69 }
70 rc = CreateDIBitmap(hdc, lpbmih, fdwInit, newbits, lpbmi, fuUsage);
71 free( newbits );
72 }
73
74 ((BITMAPINFOHEADER *)lpbmih)->biHeight = iHeight;
75 return rc;
76 }
77 }
78
79 // 2000/09/01 PH Netscape 4.7
80 // If color depth of lpbhmi is 16 bit and lpbmi is 8 bit,
81 // Open32 will crash since it won't allocate any palette color memory,
82 // however wants to copy it later on ...
83 int biBitCount = lpbmih->biBitCount;
84
85 if (lpbmih->biBitCount != lpbmi->bmiHeader.biBitCount)
86 {
87 dprintf(("GDI32: CreateDIBitmap: color depths of bitmaps differ! (%d,%d\n", lpbmih->biBitCount,
88 lpbmi->bmiHeader.biBitCount));
89
90 ((BITMAPINFOHEADER *)lpbmih)->biBitCount = lpbmi->bmiHeader.biBitCount;
91 }
92
93 switch(lpbmih->biBitCount) {
94 case 15:
95 case 16: //Default if BI_BITFIELDS not set is RGB 555
96 bitfields[0] = (lpbmih->biCompression == BI_BITFIELDS) ? *(DWORD *)lpbmi->bmiColors : DEFAULT_16BPP_RED_MASK;
97 bitfields[1] = (lpbmih->biCompression == BI_BITFIELDS) ? *((DWORD *)lpbmi->bmiColors + 1) : DEFAULT_16BPP_GREEN_MASK;
98 bitfields[2] = (lpbmih->biCompression == BI_BITFIELDS) ? *((DWORD *)lpbmi->bmiColors + 2) : DEFAULT_16BPP_BLUE_MASK;
99 break;
100 case 24:
101 case 32:
102 bitfields[0] = (lpbmih->biCompression == BI_BITFIELDS) ? *(DWORD *)lpbmi->bmiColors : DEFAULT_24BPP_RED_MASK;
103 bitfields[1] = (lpbmih->biCompression == BI_BITFIELDS) ? *((DWORD *)lpbmi->bmiColors + 1) : DEFAULT_24BPP_GREEN_MASK;
104 bitfields[2] = (lpbmih->biCompression == BI_BITFIELDS) ? *((DWORD *)lpbmi->bmiColors + 2) : DEFAULT_24BPP_BLUE_MASK;
105 break;
106 default:
107 bitfields[0] = 0;
108 bitfields[1] = 0;
109 bitfields[2] = 0;
110 break;
111 }
112 if(bitfields[1] == RGB555_GREEN_MASK && lpbInit && fdwInit == CBM_INIT)
113 {//RGB 555?
114 dprintf(("RGB 555->565 conversion required %x %x %x", bitfields[0], bitfields[1], bitfields[2]));
115
116 int imgsize = CalcBitmapSize(lpbmih->biBitCount, lpbmih->biWidth, lpbmih->biHeight);
117
118 newbits = (WORD *)malloc(imgsize);
119 if(CPUFeatures & CPUID_MMX) {
120 RGB555to565MMX(newbits, (WORD *)lpbInit, imgsize/sizeof(WORD));
121 }
122 else RGB555to565(newbits, (WORD *)lpbInit, imgsize/sizeof(WORD));
123 lpbInit = newbits;
124 }
125
126 rc = O32_CreateDIBitmap(hdc, lpbmih, fdwInit, lpbInit, lpbmi, fuUsage);
127
128 dprintf(("GDI32: CreateDIBitmap %x %x %x %x %x returned %x (%d,%d, bps %d)", hdc, lpbmih, fdwInit, lpbInit, fuUsage, rc, lpbmih->biWidth, lpbmih->biHeight, lpbmih->biBitCount));
129
130 if(newbits) free(newbits);
131
132 ((BITMAPINFOHEADER *)lpbmih)->biHeight = iHeight;
133 ((BITMAPINFOHEADER *)lpbmih)->biBitCount = biBitCount;
134
135 if(rc) {
136 STATS_CreateDIBitmap(rc, hdc, lpbmih, fdwInit, lpbInit, lpbmi, fuUsage);
137 if(bitfields[1] == RGB565_GREEN_MASK) {
138 //mark bitmap as RGB565
139 dprintf(("RGB565 bitmap"));
140 ObjSetHandleFlag(rc, OBJHANDLE_FLAG_BMP_RGB565, TRUE);
141 }
142 }
143
144 return rc;
145}
146//******************************************************************************
147//******************************************************************************
148HBITMAP WIN32API CreateCompatibleBitmap( HDC hdc, int nWidth, int nHeight)
149{
150 HBITMAP hBitmap;
151 pDCData pHps;
152
153 pHps = (pDCData)OSLibGpiQueryDCData((HPS)hdc);
154 if(!pHps)
155 {
156 SetLastError(ERROR_INVALID_HANDLE);
157 return 0;
158 }
159
160 hBitmap = O32_CreateCompatibleBitmap(hdc, nWidth, nHeight);
161 if(hBitmap) {
162 STATS_CreateCompatibleBitmap(hBitmap,hdc, nWidth, nHeight);
163 if(pHps->hwnd == 1) { //1 == HWND_DESKTOP
164 dprintf(("Screen compatible bitmap"));
165 ObjSetHandleFlag(hBitmap, OBJHANDLE_FLAG_BMP_SCREEN_COMPATIBLE, 1);
166 }
167 }
168
169 return hBitmap;
170}
171//******************************************************************************
172//CreateDisardableBitmap is obsolete and can be replaced by CreateCompatibleBitmap
173//******************************************************************************
174HBITMAP WIN32API CreateDiscardableBitmap(HDC hDC, int nWidth, int nHeight)
175{
176 dprintf(("GDI32: CreateDisardableBitmap"));
177 return CreateCompatibleBitmap(hDC, nWidth, nHeight);
178}
179//******************************************************************************
180//******************************************************************************
181HBITMAP WIN32API CreateBitmap(int nWidth, int nHeight, UINT cPlanes,
182 UINT cBitsPerPel, const void *lpvBits)
183{
184 HBITMAP hBitmap;
185
186 hBitmap = O32_CreateBitmap(nWidth, nHeight, cPlanes, cBitsPerPel, lpvBits);
187 if(hBitmap) STATS_CreateBitmap(hBitmap,nWidth, nHeight, cPlanes, cBitsPerPel, lpvBits);
188 return(hBitmap);
189}
190//******************************************************************************
191//******************************************************************************
192HBITMAP WIN32API CreateBitmapIndirect( const BITMAP *pBitmap)
193{
194 HBITMAP hBitmap;
195
196 dprintf(("GDI32: CreateBitmapIndirect (%d,%d) bpp %d bits %x", pBitmap->bmWidth, pBitmap->bmHeight, pBitmap->bmBitsPixel, pBitmap->bmBits));
197 hBitmap = O32_CreateBitmapIndirect(pBitmap);
198 if(hBitmap) STATS_CreateBitmapIndirect(hBitmap, pBitmap);
199 return hBitmap;
200}
201//******************************************************************************
202//*********************************************************************************
203HBITMAP WIN32API CreateDIBSection( HDC hdc, BITMAPINFO *pbmi, UINT iUsage,
204 VOID **ppvBits, HANDLE hSection, DWORD dwOffset)
205{
206 HBITMAP res = 0;
207 BOOL fFlip = 0;
208 int iHeight, iWidth;
209 BOOL fCreateDC = FALSE;
210
211 dprintf(("GDI32: CreateDIBSection %x %x %x %x %x %d", hdc, pbmi, iUsage, ppvBits, hSection, dwOffset));
212
213 //SvL: 13-9-98: StarCraft uses bitmap with negative height
214 iWidth = pbmi->bmiHeader.biWidth;
215 if(pbmi->bmiHeader.biWidth < 0)
216 {
217 dprintf(("CreateDIBSection: width %d", pbmi->bmiHeader.biWidth));
218 pbmi->bmiHeader.biWidth = -pbmi->bmiHeader.biWidth;
219 fFlip = FLIP_HOR;
220 }
221 iHeight = pbmi->bmiHeader.biHeight;
222 if(pbmi->bmiHeader.biHeight < 0)
223 {
224 dprintf(("CreateDIBSection: height %d", pbmi->bmiHeader.biHeight));
225 pbmi->bmiHeader.biHeight = -pbmi->bmiHeader.biHeight;
226 fFlip |= FLIP_VERT;
227 }
228
229 //SvL: RP7 (update) calls this api with hdc == 0
230 if(hdc == 0) {
231 hdc = CreateCompatibleDC(0);
232 fCreateDC = TRUE;
233 }
234 res = O32_CreateDIBitmap(hdc, &pbmi->bmiHeader, 0, NULL, pbmi, iUsage);
235 if (res)
236 {
237 char PalSize;
238 DIBSection *dsect;
239
240 dsect = new DIBSection((BITMAPINFOHEADER_W *)&pbmi->bmiHeader, (char *)&pbmi->bmiColors, iUsage, hSection, dwOffset, (DWORD)res, fFlip);
241
242 if(dsect != NULL)
243 {
244 PalSize = dsect->GetBitCount();
245 if(PalSize <= 8)
246 {
247 ULONG Pal[256], nrcolors;
248 LOGPALETTE tmpPal = { 0x300,1,{0,0,0,0}};
249 HPALETTE hpalCur, hpalTmp;
250
251 // Now get the current Palette from the DC
252 hpalTmp = CreatePalette(&tmpPal);
253 hpalCur = SelectPalette(hdc, hpalTmp, FALSE);
254
255 // and use it to set the DIBColorTable
256 nrcolors = GetPaletteEntries( hpalCur, 0, 1<<PalSize, (LPPALETTEENTRY)&Pal);
257 dsect->SetDIBColorTable(0, nrcolors, (LPPALETTEENTRY)&Pal);
258
259 // Restore the DC Palette
260 SelectPalette(hdc,hpalCur,FALSE);
261 DeleteObject(hpalTmp);
262 }
263
264 if(ppvBits!=NULL)
265 *ppvBits = dsect->GetDIBObject();
266
267 pbmi->bmiHeader.biWidth = iWidth;
268 pbmi->bmiHeader.biHeight = iHeight;
269
270 if(fCreateDC) DeleteDC(hdc);
271
272 STATS_CreateDIBSection(res, hdc, pbmi, iUsage, ppvBits, hSection, dwOffset);
273
274 return(res);
275 }
276 }
277 if(fCreateDC) DeleteDC(hdc);
278
279 /* Error. */
280 if (res)
281 DeleteObject(res);
282 *ppvBits = NULL;
283
284#ifdef DEBUG
285 dprintf(("GDI32: CreateDIBSection, error!\n"));
286 dprintf(("pbmi->biWidth %d", pbmi->bmiHeader.biWidth));
287 dprintf(("pbmi->biHeight %d", pbmi->bmiHeader.biHeight));
288 dprintf(("pbmi->biBitCount %d", pbmi->bmiHeader.biBitCount));
289#endif
290
291 return 0;
292}
293//******************************************************************************
294//******************************************************************************
295UINT WIN32API GetDIBColorTable(HDC hdc, UINT uStartIndex, UINT cEntries,
296 RGBQUAD *pColors)
297{
298 DIBSection *dsect = DIBSection::findHDC(hdc);
299 UINT rc;
300 int i;
301
302 dprintf(("GetDIBColorTable %x %d->%d %x", hdc, uStartIndex, cEntries, pColors));
303
304 if(dsect)
305 {
306 return(dsect->GetDIBColorTable(uStartIndex, cEntries, pColors));
307 }
308 //TODO: Is this correct?????
309 // Wine returns 0 if bitmap selected into dc with bpp > 8
310 HPALETTE hpal = GetCurrentObject(hdc, OBJ_PAL);
311 rc = O32_GetPaletteEntries(hpal, uStartIndex, cEntries, (PALETTEENTRY *)pColors);
312 for(i=0;i<cEntries;i++)
313 {
314 BYTE tmp;
315 tmp = pColors[i].rgbBlue;
316 pColors[i].rgbBlue = pColors[i].rgbRed;
317 pColors[i].rgbRed = tmp;
318 pColors[i].rgbReserved = 0;
319 }
320 dprintf(("GDI32: GetDIBColorTable returns %d\n", rc));
321 return(rc);
322}
323//******************************************************************************
324//******************************************************************************
325UINT WIN32API SetDIBColorTable(HDC hdc, UINT uStartIndex, UINT cEntries,
326 RGBQUAD *pColors)
327{
328 DIBSection *dsect = DIBSection::findHDC(hdc);
329
330 dprintf(("GDI32: SetDIBColorTable %x %d,%d %x", hdc, uStartIndex, cEntries, pColors));
331 if(dsect)
332 {
333 return(dsect->SetDIBColorTable(uStartIndex, cEntries, pColors));
334 }
335 else return(0);
336}
337//******************************************************************************
338//******************************************************************************
339LONG WIN32API GetBitmapBits( HBITMAP hBitmap, LONG arg2, PVOID arg3)
340{
341 dprintf(("GDI32: GetBitmapBits %x", hBitmap));
342 return O32_GetBitmapBits(hBitmap, arg2, arg3);
343}
344//******************************************************************************
345//******************************************************************************
346LONG WIN32API SetBitmapBits( HBITMAP hBitmap, LONG arg2, const VOID * arg3)
347{
348 dprintf(("GDI32: SetBitmapBits %x", hBitmap));
349 return O32_SetBitmapBits(hBitmap, (DWORD)arg2, arg3);
350}
351//******************************************************************************
352//******************************************************************************
353BOOL WIN32API GetBitmapDimensionEx( HBITMAP hBitmap, PSIZE pSize)
354{
355 dprintf(("GDI32: GetBitmapDimensionEx %x (%d,%d)", hBitmap, pSize->cx, pSize->cy));
356 return O32_GetBitmapDimensionEx(hBitmap, pSize);
357}
358//******************************************************************************
359//******************************************************************************
360BOOL WIN32API SetBitmapDimensionEx( HBITMAP arg1, int arg2, int arg3, PSIZE arg4)
361{
362 dprintf(("GDI32: SetBitmapDimensionEx"));
363 return O32_SetBitmapDimensionEx(arg1, arg2, arg3, arg4);
364}
365//******************************************************************************
366//******************************************************************************
367int WIN32API GetDIBits(HDC hdc, HBITMAP hBitmap, UINT uStartScan, UINT cScanLines,
368 void *lpvBits, PBITMAPINFO lpbi, UINT uUsage)
369{
370 int nrlines;
371 pDCData pHps;
372 HDC hdcMem;
373
374 dprintf(("GDI32: GetDIBits %x %x %d %d %x %x (biBitCount %d) %d", hdc, hBitmap, uStartScan, cScanLines, lpvBits, lpbi, lpbi->bmiHeader.biBitCount, uUsage));
375
376 //SvL: WGSS screws up the DC if it's a memory DC
377 // TODO: Fix in WGSS (tries to select another bitmap in the DC which fails)
378 pHps = (pDCData)OSLibGpiQueryDCData((HPS)hdc);
379 if(!pHps)
380 {
381 SetLastError(ERROR_INVALID_HANDLE);
382 return 0;
383 }
384 if(pHps->isMemoryPS) {
385 hdcMem = CreateCompatibleDC(0);
386 }
387 else hdcMem = hdc;
388
389 if(lpbi->bmiHeader.biHeight < 0) {
390 //NOTE: workaround for WGSS bug; remove when fixed
391 LONG height = lpbi->bmiHeader.biHeight;
392
393 nrlines = O32_GetDIBits(hdcMem, hBitmap, uStartScan, cScanLines, lpvBits, lpbi, uUsage);
394
395 //NOTE: workaround for WGSS bug; remove when fixed
396 lpbi->bmiHeader.biHeight = height;
397 }
398 else {
399 nrlines = O32_GetDIBits(hdcMem, hBitmap, uStartScan, cScanLines, lpvBits, lpbi, uUsage);
400 }
401
402 if(pHps->isMemoryPS)
403 DeleteDC(hdcMem);
404
405 if(lpvBits) {
406 // set proper color masks (only if lpvBits not NULL)
407 switch(lpbi->bmiHeader.biBitCount) {
408 case 15:
409 case 16: //RGB 565
410 {
411 DWORD dwFlags;
412
413 dwFlags = ObjQueryHandleFlags(hBitmap);
414 if(dwFlags & (OBJHANDLE_FLAG_BMP_SCREEN_COMPATIBLE|OBJHANDLE_FLAG_BMP_RGB565)) {
415 ((DWORD*)(lpbi->bmiColors))[0] = RGB565_RED_MASK;
416 ((DWORD*)(lpbi->bmiColors))[1] = RGB565_GREEN_MASK;
417 ((DWORD*)(lpbi->bmiColors))[2] = RGB565_BLUE_MASK;
418 }
419 else {
420 ((DWORD*)(lpbi->bmiColors))[0] = RGB555_RED_MASK;
421 ((DWORD*)(lpbi->bmiColors))[1] = RGB555_GREEN_MASK;
422 ((DWORD*)(lpbi->bmiColors))[2] = RGB555_BLUE_MASK;
423 }
424 break;
425 }
426 case 24:
427 case 32:
428 ((DWORD*)(lpbi->bmiColors))[0] = DEFAULT_24BPP_RED_MASK;
429 ((DWORD*)(lpbi->bmiColors))[1] = DEFAULT_24BPP_GREEN_MASK;
430 ((DWORD*)(lpbi->bmiColors))[2] = DEFAULT_24BPP_BLUE_MASK;
431 break;
432 }
433 if(lpbi->bmiHeader.biCompression == BI_RGB && lpbi->bmiHeader.biBitCount > 8) {
434 lpbi->bmiHeader.biCompression = BI_BITFIELDS;
435 dprintf(("BI_BITFIELDS: %x %x %x", ((DWORD*)(lpbi->bmiColors))[0], ((DWORD*)(lpbi->bmiColors))[1], ((DWORD*)(lpbi->bmiColors))[2]));
436 }
437 }
438 if(nrlines && lpvBits && lpbi->bmiHeader.biBitCount == 16 && ((DWORD*)(lpbi->bmiColors))[1] == RGB555_GREEN_MASK)
439 {//RGB 555?
440 dprintf(("RGB 565->555 conversion required"));
441
442 int imgsize = CalcBitmapSize(lpbi->bmiHeader.biBitCount,
443 lpbi->bmiHeader.biWidth, nrlines);
444
445 if(CPUFeatures & CPUID_MMX) {
446 RGB565to555MMX((WORD *)lpvBits, (WORD *)lpvBits, imgsize/sizeof(WORD));
447 }
448 else RGB565to555((WORD *)lpvBits, (WORD *)lpvBits, imgsize/sizeof(WORD));
449 }
450
451 //WGSS/Open32 returns 0 when querying the bitmap info; must return nr of scanlines
452 //as 0 signals failure
453 if(lpvBits == NULL) {
454 nrlines = cScanLines;
455 }
456 return nrlines;
457}
458//******************************************************************************
459//******************************************************************************
460void WIN32API ConvertRGB555to565(LPVOID dest, LPVOID src, UINT imgsize)
461{
462 if(CPUFeatures & CPUID_MMX) {
463 RGB555to565MMX((WORD *)dest, (WORD *)src, imgsize/sizeof(WORD));
464 }
465 else RGB555to565((WORD *)dest, (WORD *)src, imgsize/sizeof(WORD));
466}
467//******************************************************************************
468//******************************************************************************
469int WIN32API SetDIBits(HDC hdc, HBITMAP hBitmap, UINT startscan, UINT numlines, const VOID *pBits,
470 const BITMAPINFO *pBitmapInfo, UINT usage)
471{
472 int ret;
473 DWORD bitfields[3];
474 WORD *newbits = NULL;
475
476 dprintf(("GDI32: SetDIBits %x %x %x %x %x %x %x", hdc, hBitmap, startscan, numlines, pBits, pBitmapInfo, usage));
477
478 //SvL: Open32's SetDIBits really messes things up for 1 bpp bitmaps, must use SetBitmapBits
479 if(pBitmapInfo->bmiHeader.biBitCount == 1 && startscan == 0 && numlines == pBitmapInfo->bmiHeader.biHeight)
480 {//WARNING: hack alert!
481 int dibwidth = DIB_GetDIBWidthBytes(pBitmapInfo->bmiHeader.biWidth, 1);
482 int bmpwidth = BITMAP_GetWidthBytes(pBitmapInfo->bmiHeader.biWidth, 1);
483 char *newpix = (char *)malloc(dibwidth*pBitmapInfo->bmiHeader.biHeight);
484 char *orgpix = (char *)pBits;
485 int ret;
486
487 dprintf(("Flipping 1bpp bitmap and calling SetBitmapBits (WORKAROUND) (%d -> %d)", dibwidth, bmpwidth));
488 newpix += ((pBitmapInfo->bmiHeader.biHeight-1)*bmpwidth);
489
490 //flip bitmap here; SetDIBits assumes origin is left bottom, SetBitmapBits left top
491 //SetDIBits assumes DWORD aligned data
492 //SetBitmapBits assumes WORD aligned data
493 for(int i=0;i<pBitmapInfo->bmiHeader.biHeight;i++) {
494 memcpy(newpix, orgpix, bmpwidth);
495
496 newpix -= bmpwidth;
497 orgpix += dibwidth;
498 }
499 newpix += bmpwidth;
500 ret = O32_SetBitmapBits(hBitmap, pBitmapInfo->bmiHeader.biSizeImage, newpix);
501
502 free(newpix);
503 return ret;
504 }
505#ifdef DEBUG
506 if(pBitmapInfo->bmiHeader.biBitCount == 1) {
507 dprintf(("ERROR: SetDIBits does NOT work well for 1 bpp bitmaps!!!!!"));
508 }
509#endif
510
511 switch(pBitmapInfo->bmiHeader.biBitCount) {
512 case 15:
513 case 16: //Default if BI_BITFIELDS not set is RGB 555
514 bitfields[0] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *(DWORD *)pBitmapInfo->bmiColors : DEFAULT_16BPP_RED_MASK;
515 bitfields[1] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *((DWORD *)pBitmapInfo->bmiColors + 1) : DEFAULT_16BPP_GREEN_MASK;
516 bitfields[2] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *((DWORD *)pBitmapInfo->bmiColors + 2) : DEFAULT_16BPP_BLUE_MASK;
517 break;
518
519 case 24:
520 case 32:
521 bitfields[0] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *(DWORD *)pBitmapInfo->bmiColors : DEFAULT_24BPP_RED_MASK;
522 bitfields[1] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *((DWORD *)pBitmapInfo->bmiColors + 1) : DEFAULT_24BPP_GREEN_MASK;
523 bitfields[2] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *((DWORD *)pBitmapInfo->bmiColors + 2) : DEFAULT_24BPP_BLUE_MASK;
524 break;
525 default:
526 bitfields[0] = 0;
527 bitfields[1] = 0;
528 bitfields[2] = 0;
529 break;
530 }
531 if(pBits && bitfields[1] == RGB555_GREEN_MASK)
532 {//RGB 555?
533 dprintf(("RGB 555->565 conversion required %x %x %x", bitfields[0], bitfields[1], bitfields[2]));
534
535 int imgsize = CalcBitmapSize(pBitmapInfo->bmiHeader.biBitCount,
536 pBitmapInfo->bmiHeader.biWidth, numlines);
537
538 newbits = (WORD *)malloc(imgsize);
539 if(CPUFeatures & CPUID_MMX) {
540 RGB555to565MMX(newbits, (WORD *)pBits, imgsize/sizeof(WORD));
541 }
542 else RGB555to565(newbits, (WORD *)pBits, imgsize/sizeof(WORD));
543 pBits = newbits;
544 }
545
546 if(pBitmapInfo->bmiHeader.biHeight < 0) {
547 dprintf(("!WARNING! Negative height!!"));
548 }
549 ret = O32_SetDIBits(hdc, hBitmap, startscan, numlines, pBits, pBitmapInfo, usage);
550 if(newbits) free(newbits);
551
552 if(DIBSection::getSection() != NULL)
553 {
554 DIBSection *dsect;
555
556 dsect = DIBSection::findObj(hBitmap);
557 if(dsect) {
558 HBITMAP hBmpOld = SelectObject(hdc, hBitmap);
559 dsect->sync(hdc, 0, dsect->GetHeight());
560 SelectObject(hdc, hBmpOld);
561 }
562 }
563
564 return ret;
565}
566//******************************************************************************
567//******************************************************************************
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