source: trunk/src/gdi32/dibitmap.cpp@ 9604

Last change on this file since 9604 was 9604, checked in by sandervl, 23 years ago

removed obsolete warning
File size: 22.8 KB
Line 
1/* $Id: dibitmap.cpp,v 1.37 2003-01-03 21:42:55 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 //TEMPORARY HACK TO PREVENT CRASH IN OPEN32 (WSeB GA)
42 iHeight = lpbmih->biHeight;
43 if(lpbmih->biHeight < 0)
44 {
45 dprintf(("GDI32: CreateDIBitmap negative height! (%d,%d)", lpbmih->biWidth, lpbmih->biHeight));
46 //TODO: doesn't work if memory is readonly!!
47 ((BITMAPINFOHEADER *)lpbmih)->biHeight = -lpbmih->biHeight;
48
49 if(lpbInit && fdwInit == CBM_INIT)
50 {
51 // upside down
52 HBITMAP rc = 0;
53 long lLineByte = DIB_GetDIBWidthBytes(lpbmih->biWidth, lpbmih->biBitCount);
54 long lHeight = lpbmih->biHeight;
55
56 newbits = (WORD *)malloc( lLineByte * lHeight );
57 if(newbits) {
58 unsigned char *pbSrc = (unsigned char *)lpbInit + lLineByte * (lHeight - 1);
59 unsigned char *pbDst = (unsigned char *)newbits;
60 for(int y = 0; y < lHeight; y++) {
61 memcpy( pbDst, pbSrc, lLineByte );
62 pbDst += lLineByte;
63 pbSrc -= lLineByte;
64 }
65 rc = CreateDIBitmap(hdc, lpbmih, fdwInit, newbits, lpbmi, fuUsage);
66 free( newbits );
67 }
68
69 ((BITMAPINFOHEADER *)lpbmih)->biHeight = iHeight;
70 return rc;
71 }
72 }
73
74 // 2000/09/01 PH Netscape 4.7
75 // If color depth of lpbhmi is 16 bit and lpbmi is 8 bit,
76 // Open32 will crash since it won't allocate any palette color memory,
77 // however wants to copy it later on ...
78 int biBitCount = lpbmih->biBitCount;
79
80 if (lpbmih->biBitCount != lpbmi->bmiHeader.biBitCount)
81 {
82 dprintf(("GDI32: CreateDIBitmap: color depths of bitmaps differ! (%d,%d\n", lpbmih->biBitCount,
83 lpbmi->bmiHeader.biBitCount));
84
85 ((BITMAPINFOHEADER *)lpbmih)->biBitCount = lpbmi->bmiHeader.biBitCount;
86 }
87
88 switch(lpbmih->biBitCount) {
89 case 15:
90 case 16: //Default if BI_BITFIELDS not set is RGB 555
91 bitfields[0] = (lpbmih->biCompression == BI_BITFIELDS) ? *(DWORD *)lpbmi->bmiColors : DEFAULT_16BPP_RED_MASK;
92 bitfields[1] = (lpbmih->biCompression == BI_BITFIELDS) ? *((DWORD *)lpbmi->bmiColors + 1) : DEFAULT_16BPP_GREEN_MASK;
93 bitfields[2] = (lpbmih->biCompression == BI_BITFIELDS) ? *((DWORD *)lpbmi->bmiColors + 2) : DEFAULT_16BPP_BLUE_MASK;
94 break;
95 case 24:
96 case 32:
97 bitfields[0] = (lpbmih->biCompression == BI_BITFIELDS) ? *(DWORD *)lpbmi->bmiColors : DEFAULT_24BPP_RED_MASK;
98 bitfields[1] = (lpbmih->biCompression == BI_BITFIELDS) ? *((DWORD *)lpbmi->bmiColors + 1) : DEFAULT_24BPP_GREEN_MASK;
99 bitfields[2] = (lpbmih->biCompression == BI_BITFIELDS) ? *((DWORD *)lpbmi->bmiColors + 2) : DEFAULT_24BPP_BLUE_MASK;
100 break;
101 default:
102 bitfields[0] = 0;
103 bitfields[1] = 0;
104 bitfields[2] = 0;
105 break;
106 }
107 if(bitfields[1] == RGB555_GREEN_MASK && lpbInit && fdwInit == CBM_INIT)
108 {//RGB 555?
109 dprintf(("RGB 555->565 conversion required %x %x %x", bitfields[0], bitfields[1], bitfields[2]));
110
111 int imgsize = CalcBitmapSize(lpbmih->biBitCount, lpbmih->biWidth, lpbmih->biHeight);
112
113 newbits = (WORD *)malloc(imgsize);
114 if(CPUFeatures & CPUID_MMX) {
115 RGB555to565MMX(newbits, (WORD *)lpbInit, imgsize/sizeof(WORD));
116 }
117 else RGB555to565(newbits, (WORD *)lpbInit, imgsize/sizeof(WORD));
118 lpbInit = newbits;
119 }
120
121 rc = O32_CreateDIBitmap(hdc, lpbmih, fdwInit, lpbInit, lpbmi, fuUsage);
122
123 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));
124
125 if(newbits) free(newbits);
126
127 ((BITMAPINFOHEADER *)lpbmih)->biHeight = iHeight;
128 ((BITMAPINFOHEADER *)lpbmih)->biBitCount = biBitCount;
129
130 if(rc) {
131 STATS_CreateDIBitmap(rc, hdc, lpbmih, fdwInit, lpbInit, lpbmi, fuUsage);
132 if(bitfields[1] == RGB565_GREEN_MASK) {
133 //mark bitmap as RGB565
134 dprintf(("RGB565 bitmap"));
135 ObjSetHandleFlag(rc, OBJHANDLE_FLAG_BMP_RGB565, TRUE);
136 }
137 }
138
139 return rc;
140}
141//******************************************************************************
142//******************************************************************************
143HBITMAP WIN32API CreateCompatibleBitmap( HDC hdc, int nWidth, int nHeight)
144{
145 HBITMAP hBitmap;
146 pDCData pHps;
147
148 pHps = (pDCData)OSLibGpiQueryDCData((HPS)hdc);
149 if(!pHps)
150 {
151 SetLastError(ERROR_INVALID_HANDLE);
152 return 0;
153 }
154
155 hBitmap = O32_CreateCompatibleBitmap(hdc, nWidth, nHeight);
156 if(hBitmap) {
157 STATS_CreateCompatibleBitmap(hBitmap,hdc, nWidth, nHeight);
158 if(pHps->hwnd == 1) { //1 == HWND_DESKTOP
159 dprintf(("Screen compatible bitmap"));
160 ObjSetHandleFlag(hBitmap, OBJHANDLE_FLAG_BMP_SCREEN_COMPATIBLE, 1);
161 }
162 }
163
164 return hBitmap;
165}
166//******************************************************************************
167//CreateDisardableBitmap is obsolete and can be replaced by CreateCompatibleBitmap
168//******************************************************************************
169HBITMAP WIN32API CreateDiscardableBitmap(HDC hDC, int nWidth, int nHeight)
170{
171 dprintf(("GDI32: CreateDisardableBitmap"));
172 return CreateCompatibleBitmap(hDC, nWidth, nHeight);
173}
174//******************************************************************************
175//******************************************************************************
176HBITMAP WIN32API CreateBitmap(int nWidth, int nHeight, UINT cPlanes,
177 UINT cBitsPerPel, const void *lpvBits)
178{
179 HBITMAP hBitmap;
180
181 hBitmap = O32_CreateBitmap(nWidth, nHeight, cPlanes, cBitsPerPel, lpvBits);
182 if(hBitmap) STATS_CreateBitmap(hBitmap,nWidth, nHeight, cPlanes, cBitsPerPel, lpvBits);
183 return(hBitmap);
184}
185//******************************************************************************
186//******************************************************************************
187HBITMAP WIN32API CreateBitmapIndirect( const BITMAP *pBitmap)
188{
189 HBITMAP hBitmap;
190
191 dprintf(("GDI32: CreateBitmapIndirect (%d,%d) bpp %d bits %x", pBitmap->bmWidth, pBitmap->bmHeight, pBitmap->bmBitsPixel, pBitmap->bmBits));
192 hBitmap = O32_CreateBitmapIndirect(pBitmap);
193 if(hBitmap) STATS_CreateBitmapIndirect(hBitmap, pBitmap);
194 return hBitmap;
195}
196//******************************************************************************
197//*********************************************************************************
198HBITMAP WIN32API CreateDIBSection( HDC hdc, BITMAPINFO *pbmi, UINT iUsage,
199 VOID **ppvBits, HANDLE hSection, DWORD dwOffset)
200{
201 HBITMAP res = 0;
202 BOOL fFlip = 0;
203 int iHeight, iWidth;
204 BOOL fCreateDC = FALSE;
205
206 dprintf(("GDI32: CreateDIBSection %x %x %x %x %x %d", hdc, pbmi, iUsage, ppvBits, hSection, dwOffset));
207
208 //SvL: 13-9-98: StarCraft uses bitmap with negative height
209 iWidth = pbmi->bmiHeader.biWidth;
210 if(pbmi->bmiHeader.biWidth < 0)
211 {
212 dprintf(("CreateDIBSection: width %d", pbmi->bmiHeader.biWidth));
213 pbmi->bmiHeader.biWidth = -pbmi->bmiHeader.biWidth;
214 fFlip = FLIP_HOR;
215 }
216 iHeight = pbmi->bmiHeader.biHeight;
217 if(pbmi->bmiHeader.biHeight < 0)
218 {
219 dprintf(("CreateDIBSection: height %d", pbmi->bmiHeader.biHeight));
220 pbmi->bmiHeader.biHeight = -pbmi->bmiHeader.biHeight;
221 fFlip |= FLIP_VERT;
222 }
223
224 //SvL: RP7 (update) calls this api with hdc == 0
225 if(hdc == 0) {
226 hdc = CreateCompatibleDC(0);
227 fCreateDC = TRUE;
228 }
229 res = O32_CreateDIBitmap(hdc, &pbmi->bmiHeader, 0, NULL, pbmi, iUsage);
230 if (res)
231 {
232 char PalSize;
233 DIBSection *dsect;
234
235 dsect = new DIBSection((BITMAPINFOHEADER_W *)&pbmi->bmiHeader, (char *)&pbmi->bmiColors, iUsage, hSection, dwOffset, (DWORD)res, fFlip);
236
237 if(dsect != NULL)
238 {
239 PalSize = dsect->GetBitCount();
240 if(PalSize <= 8)
241 {
242 ULONG Pal[256], nrcolors;
243 LOGPALETTE tmpPal = { 0x300,1,{0,0,0,0}};
244 HPALETTE hpalCur, hpalTmp;
245
246 // Now get the current Palette from the DC
247 hpalTmp = CreatePalette(&tmpPal);
248 hpalCur = SelectPalette(hdc, hpalTmp, FALSE);
249
250 // and use it to set the DIBColorTable
251 nrcolors = GetPaletteEntries( hpalCur, 0, 1<<PalSize, (LPPALETTEENTRY)&Pal);
252 dsect->SetDIBColorTable(0, nrcolors, (LPPALETTEENTRY)&Pal);
253
254 // Restore the DC Palette
255 SelectPalette(hdc,hpalCur,FALSE);
256 DeleteObject(hpalTmp);
257 }
258
259 if(ppvBits!=NULL)
260 *ppvBits = dsect->GetDIBObject();
261
262 pbmi->bmiHeader.biWidth = iWidth;
263 pbmi->bmiHeader.biHeight = iHeight;
264
265 if(fCreateDC) DeleteDC(hdc);
266
267 STATS_CreateDIBSection(res, hdc, pbmi, iUsage, ppvBits, hSection, dwOffset);
268
269 return(res);
270 }
271 }
272 if(fCreateDC) DeleteDC(hdc);
273
274 /* Error. */
275 if (res)
276 DeleteObject(res);
277 *ppvBits = NULL;
278
279#ifdef DEBUG
280 dprintf(("GDI32: CreateDIBSection, error!\n"));
281 dprintf(("pbmi->biWidth %d", pbmi->bmiHeader.biWidth));
282 dprintf(("pbmi->biHeight %d", pbmi->bmiHeader.biHeight));
283 dprintf(("pbmi->biBitCount %d", pbmi->bmiHeader.biBitCount));
284#endif
285
286 return 0;
287}
288//******************************************************************************
289//******************************************************************************
290UINT WIN32API GetDIBColorTable(HDC hdc, UINT uStartIndex, UINT cEntries,
291 RGBQUAD *pColors)
292{
293 DIBSection *dsect = DIBSection::findHDC(hdc);
294 UINT rc;
295 int i;
296
297 dprintf(("GetDIBColorTable %x %d->%d %x", hdc, uStartIndex, cEntries, pColors));
298
299 if(dsect)
300 {
301 return(dsect->GetDIBColorTable(uStartIndex, cEntries, pColors));
302 }
303 //TODO: Is this correct?????
304 // Wine returns 0 if bitmap selected into dc with bpp > 8
305 HPALETTE hpal = GetCurrentObject(hdc, OBJ_PAL);
306 rc = O32_GetPaletteEntries(hpal, uStartIndex, cEntries, (PALETTEENTRY *)pColors);
307 for(i=0;i<cEntries;i++)
308 {
309 BYTE tmp;
310 tmp = pColors[i].rgbBlue;
311 pColors[i].rgbBlue = pColors[i].rgbRed;
312 pColors[i].rgbRed = tmp;
313 pColors[i].rgbReserved = 0;
314 }
315 dprintf(("GDI32: GetDIBColorTable returns %d\n", rc));
316 return(rc);
317}
318//******************************************************************************
319//******************************************************************************
320UINT WIN32API SetDIBColorTable(HDC hdc, UINT uStartIndex, UINT cEntries,
321 RGBQUAD *pColors)
322{
323 DIBSection *dsect = DIBSection::findHDC(hdc);
324
325 dprintf(("GDI32: SetDIBColorTable %x %d,%d %x", hdc, uStartIndex, cEntries, pColors));
326 if(dsect)
327 {
328 return(dsect->SetDIBColorTable(uStartIndex, cEntries, pColors));
329 }
330 else return(0);
331}
332//******************************************************************************
333//******************************************************************************
334LONG WIN32API GetBitmapBits( HBITMAP hBitmap, LONG arg2, PVOID arg3)
335{
336 dprintf(("GDI32: GetBitmapBits %x", hBitmap));
337 return O32_GetBitmapBits(hBitmap, arg2, arg3);
338}
339//******************************************************************************
340//******************************************************************************
341LONG WIN32API SetBitmapBits( HBITMAP hBitmap, LONG arg2, const VOID * arg3)
342{
343 dprintf(("GDI32: SetBitmapBits %x", hBitmap));
344 return O32_SetBitmapBits(hBitmap, (DWORD)arg2, arg3);
345}
346//******************************************************************************
347//******************************************************************************
348BOOL WIN32API GetBitmapDimensionEx( HBITMAP hBitmap, PSIZE pSize)
349{
350 dprintf(("GDI32: GetBitmapDimensionEx %x (%d,%d)", hBitmap, pSize->cx, pSize->cy));
351 return O32_GetBitmapDimensionEx(hBitmap, pSize);
352}
353//******************************************************************************
354//******************************************************************************
355BOOL WIN32API SetBitmapDimensionEx( HBITMAP arg1, int arg2, int arg3, PSIZE arg4)
356{
357 dprintf(("GDI32: SetBitmapDimensionEx"));
358 return O32_SetBitmapDimensionEx(arg1, arg2, arg3, arg4);
359}
360//******************************************************************************
361//******************************************************************************
362int WIN32API GetDIBits(HDC hdc, HBITMAP hBitmap, UINT uStartScan, UINT cScanLines,
363 void *lpvBits, PBITMAPINFO lpbi, UINT uUsage)
364{
365 int nrlines;
366 pDCData pHps;
367 HDC hdcMem;
368
369 dprintf(("GDI32: GetDIBits %x %x %d %d %x %x (biBitCount %d) %d", hdc, hBitmap, uStartScan, cScanLines, lpvBits, lpbi, lpbi->bmiHeader.biBitCount, uUsage));
370
371 //SvL: WGSS screws up the DC if it's a memory DC
372 // TODO: Fix in WGSS (tries to select another bitmap in the DC which fails)
373 pHps = (pDCData)OSLibGpiQueryDCData((HPS)hdc);
374 if(!pHps)
375 {
376 SetLastError(ERROR_INVALID_HANDLE);
377 return 0;
378 }
379 if(pHps->isMemoryPS) {
380 hdcMem = CreateCompatibleDC(0);
381 }
382 else hdcMem = hdc;
383
384 if(lpbi->bmiHeader.biHeight < 0) {
385 //NOTE: workaround for WGSS bug; remove when fixed
386 LONG height = lpbi->bmiHeader.biHeight;
387
388 nrlines = O32_GetDIBits(hdcMem, hBitmap, uStartScan, cScanLines, lpvBits, lpbi, uUsage);
389
390 //NOTE: workaround for WGSS bug; remove when fixed
391 lpbi->bmiHeader.biHeight = height;
392 }
393 else {
394 nrlines = O32_GetDIBits(hdcMem, hBitmap, uStartScan, cScanLines, lpvBits, lpbi, uUsage);
395 }
396
397 if(pHps->isMemoryPS)
398 DeleteDC(hdcMem);
399
400 if(lpvBits) {
401 // set proper color masks (only if lpvBits not NULL)
402 switch(lpbi->bmiHeader.biBitCount) {
403 case 15:
404 case 16: //RGB 565
405 {
406 DWORD dwFlags;
407
408 dwFlags = ObjQueryHandleFlags(hBitmap);
409 if(dwFlags & (OBJHANDLE_FLAG_BMP_SCREEN_COMPATIBLE|OBJHANDLE_FLAG_BMP_RGB565)) {
410 ((DWORD*)(lpbi->bmiColors))[0] = RGB565_RED_MASK;
411 ((DWORD*)(lpbi->bmiColors))[1] = RGB565_GREEN_MASK;
412 ((DWORD*)(lpbi->bmiColors))[2] = RGB565_BLUE_MASK;
413 }
414 else {
415 ((DWORD*)(lpbi->bmiColors))[0] = RGB555_RED_MASK;
416 ((DWORD*)(lpbi->bmiColors))[1] = RGB555_GREEN_MASK;
417 ((DWORD*)(lpbi->bmiColors))[2] = RGB555_BLUE_MASK;
418 }
419 break;
420 }
421 case 24:
422 case 32:
423 ((DWORD*)(lpbi->bmiColors))[0] = DEFAULT_24BPP_RED_MASK;
424 ((DWORD*)(lpbi->bmiColors))[1] = DEFAULT_24BPP_GREEN_MASK;
425 ((DWORD*)(lpbi->bmiColors))[2] = DEFAULT_24BPP_BLUE_MASK;
426 break;
427 }
428 if(lpbi->bmiHeader.biCompression == BI_RGB && lpbi->bmiHeader.biBitCount > 8) {
429 lpbi->bmiHeader.biCompression = BI_BITFIELDS;
430 dprintf(("BI_BITFIELDS: %x %x %x", ((DWORD*)(lpbi->bmiColors))[0], ((DWORD*)(lpbi->bmiColors))[1], ((DWORD*)(lpbi->bmiColors))[2]));
431 }
432 }
433 if(nrlines && lpvBits && lpbi->bmiHeader.biBitCount == 16 && ((DWORD*)(lpbi->bmiColors))[1] == RGB555_GREEN_MASK)
434 {//RGB 555?
435 dprintf(("RGB 565->555 conversion required"));
436
437 int imgsize = CalcBitmapSize(lpbi->bmiHeader.biBitCount,
438 lpbi->bmiHeader.biWidth, nrlines);
439
440 if(CPUFeatures & CPUID_MMX) {
441 RGB565to555MMX((WORD *)lpvBits, (WORD *)lpvBits, imgsize/sizeof(WORD));
442 }
443 else RGB565to555((WORD *)lpvBits, (WORD *)lpvBits, imgsize/sizeof(WORD));
444 }
445
446 //WGSS/Open32 returns 0 when querying the bitmap info; must return nr of scanlines
447 //as 0 signals failure
448 if(lpvBits == NULL) {
449 nrlines = cScanLines;
450 }
451 return nrlines;
452}
453//******************************************************************************
454//******************************************************************************
455void WIN32API ConvertRGB555to565(LPVOID dest, LPVOID src, UINT imgsize)
456{
457 if(CPUFeatures & CPUID_MMX) {
458 RGB555to565MMX((WORD *)dest, (WORD *)src, imgsize/sizeof(WORD));
459 }
460 else RGB555to565((WORD *)dest, (WORD *)src, imgsize/sizeof(WORD));
461}
462//******************************************************************************
463//******************************************************************************
464int WIN32API SetDIBits(HDC hdc, HBITMAP hBitmap, UINT startscan, UINT numlines, const VOID *pBits,
465 const BITMAPINFO *pBitmapInfo, UINT usage)
466{
467 int ret;
468 DWORD bitfields[3];
469 WORD *newbits = NULL;
470
471 dprintf(("GDI32: SetDIBits %x %x %x %x %x %x %x", hdc, hBitmap, startscan, numlines, pBits, pBitmapInfo, usage));
472
473 //SvL: Open32's SetDIBits really messes things up for 1 bpp bitmaps, must use SetBitmapBits
474 if(pBitmapInfo->bmiHeader.biBitCount == 1 && startscan == 0 && numlines == pBitmapInfo->bmiHeader.biHeight)
475 {//WARNING: hack alert!
476 int dibwidth = DIB_GetDIBWidthBytes(pBitmapInfo->bmiHeader.biWidth, 1);
477 int bmpwidth = BITMAP_GetWidthBytes(pBitmapInfo->bmiHeader.biWidth, 1);
478 char *newpix = (char *)malloc(dibwidth*pBitmapInfo->bmiHeader.biHeight);
479 char *orgpix = (char *)pBits;
480 int ret;
481
482 dprintf(("Flipping 1bpp bitmap and calling SetBitmapBits (WORKAROUND) (%d -> %d)", dibwidth, bmpwidth));
483 newpix += ((pBitmapInfo->bmiHeader.biHeight-1)*bmpwidth);
484
485 //flip bitmap here; SetDIBits assumes origin is left bottom, SetBitmapBits left top
486 //SetDIBits assumes DWORD aligned data
487 //SetBitmapBits assumes WORD aligned data
488 for(int i=0;i<pBitmapInfo->bmiHeader.biHeight;i++) {
489 memcpy(newpix, orgpix, bmpwidth);
490
491 newpix -= bmpwidth;
492 orgpix += dibwidth;
493 }
494 newpix += bmpwidth;
495 ret = O32_SetBitmapBits(hBitmap, pBitmapInfo->bmiHeader.biSizeImage, newpix);
496
497 free(newpix);
498 return ret;
499 }
500#ifdef DEBUG
501 if(pBitmapInfo->bmiHeader.biBitCount == 1) {
502 dprintf(("ERROR: SetDIBits does NOT work well for 1 bpp bitmaps!!!!!"));
503 }
504#endif
505
506 switch(pBitmapInfo->bmiHeader.biBitCount) {
507 case 15:
508 case 16: //Default if BI_BITFIELDS not set is RGB 555
509 bitfields[0] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *(DWORD *)pBitmapInfo->bmiColors : DEFAULT_16BPP_RED_MASK;
510 bitfields[1] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *((DWORD *)pBitmapInfo->bmiColors + 1) : DEFAULT_16BPP_GREEN_MASK;
511 bitfields[2] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *((DWORD *)pBitmapInfo->bmiColors + 2) : DEFAULT_16BPP_BLUE_MASK;
512 break;
513
514 case 24:
515 case 32:
516 bitfields[0] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *(DWORD *)pBitmapInfo->bmiColors : DEFAULT_24BPP_RED_MASK;
517 bitfields[1] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *((DWORD *)pBitmapInfo->bmiColors + 1) : DEFAULT_24BPP_GREEN_MASK;
518 bitfields[2] = (pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS) ? *((DWORD *)pBitmapInfo->bmiColors + 2) : DEFAULT_24BPP_BLUE_MASK;
519 break;
520 default:
521 bitfields[0] = 0;
522 bitfields[1] = 0;
523 bitfields[2] = 0;
524 break;
525 }
526 if(pBits && bitfields[1] == RGB555_GREEN_MASK)
527 {//RGB 555?
528 dprintf(("RGB 555->565 conversion required %x %x %x", bitfields[0], bitfields[1], bitfields[2]));
529
530 int imgsize = CalcBitmapSize(pBitmapInfo->bmiHeader.biBitCount,
531 pBitmapInfo->bmiHeader.biWidth, numlines);
532
533 newbits = (WORD *)malloc(imgsize);
534 if(CPUFeatures & CPUID_MMX) {
535 RGB555to565MMX(newbits, (WORD *)pBits, imgsize/sizeof(WORD));
536 }
537 else RGB555to565(newbits, (WORD *)pBits, imgsize/sizeof(WORD));
538 pBits = newbits;
539 }
540
541 //If upside down, reverse scanlines and call SetDIBits again
542 if(pBitmapInfo->bmiHeader.biHeight < 0 && (pBitmapInfo->bmiHeader.biCompression == BI_RGB ||
543 pBitmapInfo->bmiHeader.biCompression == BI_BITFIELDS))
544 {
545 // upside down
546 INT rc = -1;
547 long lLineByte;
548
549 //TODO: doesn't work if memory is readonly!!
550 ((BITMAPINFO *)pBitmapInfo)->bmiHeader.biHeight = -pBitmapInfo->bmiHeader.biHeight;
551
552 lLineByte = DIB_GetDIBWidthBytes(pBitmapInfo->bmiHeader.biWidth, pBitmapInfo->bmiHeader.biBitCount);
553
554 dprintf(("Reverse bitmap (negative height)"));
555 char *pNewBits = (char *)malloc( lLineByte * numlines );
556 if(pNewBits) {
557 unsigned char *pbSrc = (unsigned char *)pBits + lLineByte * (numlines - 1);
558 unsigned char *pbDst = (unsigned char *)pNewBits;
559 for(int y = 0; y < numlines; y++) {
560 memcpy( pbDst, pbSrc, lLineByte );
561 pbDst += lLineByte;
562 pbSrc -= lLineByte;
563 }
564 ret = O32_SetDIBits(hdc, hBitmap, startscan, numlines, pNewBits, pBitmapInfo, usage);
565 free(pNewBits);
566 }
567 else DebugInt3();
568
569 //TODO: doesn't work if memory is readonly!!
570 ((BITMAPINFO *)pBitmapInfo)->bmiHeader.biHeight = -pBitmapInfo->bmiHeader.biHeight;
571 }
572 else {
573 ret = O32_SetDIBits(hdc, hBitmap, startscan, numlines, pBits, pBitmapInfo, usage);
574 }
575 if(newbits) free(newbits);
576
577 if(DIBSection::getSection() != NULL)
578 {
579 DIBSection *dsect;
580
581 dsect = DIBSection::findObj(hBitmap);
582 if(dsect) {
583 HBITMAP hBmpOld = SelectObject(hdc, hBitmap);
584 dsect->sync(hdc, 0, dsect->GetHeight());
585 SelectObject(hdc, hBmpOld);
586 }
587 }
588
589 return ret;
590}
591//******************************************************************************
592//******************************************************************************
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