source: trunk/src/gdi32/blit.cpp@ 4803

Last change on this file since 4803 was 4676, checked in by sandervl, 25 years ago

warning for StretchDIBits for 1bpp bitmaps added
File size: 15.5 KB
Line 
1/* $Id: blit.cpp,v 1.21 2000-11-22 21:03:53 sandervl Exp $ */
2
3/*
4 * GDI32 blit 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 <cpuhlp.h>
17#include "misc.h"
18#include "dibsect.h"
19#include "rgbcvt.h"
20
21#define DBG_LOCALLOG DBG_blit
22#include "dbglocal.h"
23
24static ULONG QueryPaletteSize(BITMAPINFOHEADER *pBHdr);
25static ULONG CalcBitmapSize(ULONG cBits, LONG cx, LONG cy);
26
27//******************************************************************************
28//******************************************************************************
29BOOL WIN32API StretchBlt(HDC hdcDest, int nXOriginDest, int nYOriginDest,
30 int nWidthDest, int nHeightDest,
31 HDC hdcSrc, int nXOriginSrc, int nYOriginSrc,
32 int nWidthSrc, int nHeightSrc, DWORD dwRop)
33{
34 BOOL rc;
35
36 dprintf(("GDI32: StretchBlt Dest: %x (%d, %d) size (%d, %d) ROP %x",
37 hdcDest, nXOriginDest, nYOriginDest, nWidthDest, nHeightDest, dwRop));
38 dprintf(("GDI32: StretchBlt Src : %x (%d, %d) size (%d, %d)\n",
39 hdcSrc, nXOriginSrc, nYOriginSrc, nWidthSrc, nHeightSrc));
40 SetLastError(ERROR_SUCCESS);
41 if(DIBSection::getSection() != NULL)
42 {
43 DIBSection *dsect = DIBSection::findHDC(hdcSrc);
44 if(dsect)
45 {
46 rc = dsect->BitBlt( hdcDest,
47 nXOriginDest, nYOriginDest, nWidthDest, nHeightDest,
48 nXOriginSrc, nYOriginSrc, nWidthSrc, nHeightSrc,
49 dwRop);
50 return rc;
51 }
52 }
53 return O32_StretchBlt(hdcDest, nXOriginDest, nYOriginDest, nWidthDest, nHeightDest, hdcSrc, nXOriginSrc, nYOriginSrc, nWidthSrc, nHeightSrc, dwRop);
54}
55//******************************************************************************
56//******************************************************************************
57BOOL WIN32API BitBlt(HDC hdcDest,
58 int nXDest,
59 int nYDest,
60 int nWidth,
61 int nHeight,
62 HDC hdcSrc,
63 int nXSrc,
64 int nYSrc,
65 DWORD dwRop)
66{
67 BOOL rc;
68
69 SetLastError(ERROR_SUCCESS);
70 if(DIBSection::getSection() != NULL)
71 {
72 DIBSection *dsect = DIBSection::findHDC(hdcSrc);
73 if(dsect)
74 {
75 return dsect->BitBlt(hdcDest,
76 nXDest,
77 nYDest,
78 nWidth,
79 nHeight,
80 nXSrc,
81 nYSrc,
82 nWidth,
83 nHeight,
84 dwRop);
85 }
86 }
87 dprintf(("GDI32: BitBlt to hdc %X from hdc %x (%d,%d) to (%d,%d), (%d,%d) rop %X\n",
88 hdcDest, hdcSrc, nXSrc, nYSrc, nXDest, nYDest, nWidth, nHeight, dwRop));
89 return O32_BitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, dwRop);
90}
91//******************************************************************************
92//******************************************************************************
93INT WIN32API SetDIBitsToDevice(HDC hdc, INT xDest, INT yDest, DWORD cx,
94 DWORD cy, INT xSrc, INT ySrc,
95 UINT startscan, UINT lines, LPCVOID bits,
96 const BITMAPINFO *info, UINT coloruse)
97{
98 INT result, imgsize, palsize, height, width;
99 char *ptr;
100 ULONG compression = 0, iHeight, bmpsize;
101 WORD *newbits = 0;
102
103 dprintf(("GDI32: SetDIBitsToDevice hdc:%X xDest:%d yDest:%d, cx:%d, cy:%d, xSrc:%d, ySrc:%d, startscan:%d, lines:%d \nGDI32: bits 0x%X, info 0x%X, coloruse %d",
104 hdc, xDest, yDest, cx, cy, xSrc, ySrc, startscan, lines, (LPVOID) bits, (PBITMAPINFO)info, coloruse));
105
106 SetLastError(ERROR_SUCCESS);
107 if(info == NULL) {
108 goto invalid_parameter;
109 }
110 height = info->bmiHeader.biHeight;
111 width = info->bmiHeader.biWidth;
112
113 if (height < 0) height = -height;
114 if (!lines || (startscan >= height)) {
115 goto invalid_parameter;
116 }
117 if (startscan + lines > height) lines = height - startscan;
118
119 if (ySrc < startscan) ySrc = startscan;
120 else if (ySrc >= startscan + lines) goto invalid_parameter;
121
122 if (xSrc >= width) goto invalid_parameter;
123
124 if (ySrc + cy >= startscan + lines) cy = startscan + lines - ySrc;
125
126 if (xSrc + cx >= width) cx = width - xSrc;
127
128 if (!cx || !cy) goto invalid_parameter;
129
130 // EB: ->>> Crazy. Nobody seen this Open32 bug ?
131 // Dont't like dirty pointers, but Open32 needs a bit help.
132 // Only tested with winmine.
133 palsize = QueryPaletteSize((BITMAPINFOHEADER*)&info->bmiHeader);
134 imgsize = CalcBitmapSize(info->bmiHeader.biBitCount,
135 info->bmiHeader.biWidth, info->bmiHeader.biHeight);
136 ptr = ((char *)info) + palsize + sizeof(BITMAPINFOHEADER);
137 if(bits >= ptr && bits < ptr + imgsize)
138 {
139 bits = (char *)bits - imgsize +
140 CalcBitmapSize(info->bmiHeader.biBitCount,
141 info->bmiHeader.biWidth, lines);
142 }
143 // EB: <<<-
144
145 //SvL: RP7's bitmap size is not correct; fix it here or else
146 // the blit is messed up in Open32
147 bmpsize = info->bmiHeader.biSizeImage;
148 if(info->bmiHeader.biCompression == 0 && info->bmiHeader.biSizeImage &&
149 info->bmiHeader.biSizeImage < imgsize)
150 {
151 ((BITMAPINFO *)info)->bmiHeader.biSizeImage = imgsize;
152 }
153
154 //SvL: Ignore BI_BITFIELDS type (SetDIBitsToDevice fails otherwise)
155 if(info->bmiHeader.biCompression == BI_BITFIELDS) {
156 DWORD *bitfields = (DWORD *)info->bmiColors;
157
158 ((BITMAPINFO *)info)->bmiHeader.biCompression = 0;
159 compression = BI_BITFIELDS;
160
161 if(*(bitfields+1) == 0x3E0)
162 {//RGB 555?
163 dprintf(("BI_BITFIELDS compression %x %x %x", *bitfields, *(bitfields+1), *(bitfields+2)));
164
165 newbits = (WORD *)malloc(imgsize);
166 if(CPUFeatures & CPUID_MMX) {
167 RGB555to565MMX(newbits, (WORD *)bits, imgsize/sizeof(WORD));
168 }
169 else RGB555to565(newbits, (WORD *)bits, imgsize/sizeof(WORD));
170 bits = newbits;
171 }
172 }
173
174 iHeight = info->bmiHeader.biHeight;
175 if(info->bmiHeader.biHeight < 0) {
176 ((BITMAPINFO *)info)->bmiHeader.biHeight = -info->bmiHeader.biHeight;
177 }
178 result = O32_SetDIBitsToDevice(hdc, xDest, yDest, cx, cy, xSrc, ySrc, startscan, lines, (PVOID) bits, (PBITMAPINFO)info, coloruse);
179 //SvL: Wrong Open32 return value
180// result = (result == TRUE) ? lines : 0;
181 result = (result == TRUE) ? cy : 0;
182
183 dprintf(("GDI32: SetDIBitsToDevice hdc:%X xDest:%d yDest:%d, cx:%d, cy:%d, xSrc:%d, ySrc:%d, startscan:%d, lines:%d \nGDI32: bits 0x%X, info 0x%X, coloruse %d returned %d",
184 hdc, xDest, yDest, cx, cy, xSrc, ySrc, startscan, lines, (LPVOID) bits, (PBITMAPINFO)info, coloruse, result));
185 dprintf(("GDI32: SetDIBitsToDevice %d %d %d %d %x %d", info->bmiHeader.biWidth, info->bmiHeader.biHeight, info->bmiHeader.biPlanes, info->bmiHeader.biBitCount, info->bmiHeader.biCompression, info->bmiHeader.biSizeImage));
186
187 if(compression == BI_BITFIELDS) {
188 ((BITMAPINFO *)info)->bmiHeader.biCompression = BI_BITFIELDS;
189 if(newbits) free(newbits);
190 }
191 ((BITMAPINFO *)info)->bmiHeader.biHeight = iHeight;
192 ((BITMAPINFO *)info)->bmiHeader.biSizeImage = bmpsize;
193 return result;
194
195invalid_parameter:
196 SetLastError(ERROR_INVALID_PARAMETER);
197 return 0;
198}
199//******************************************************************************
200//******************************************************************************
201BOOL WIN32API PatBlt(HDC hdc,int nXLeft,int nYLeft,int nWidth,int nHeight,DWORD dwRop)
202{
203 BOOL rc;
204
205 //CB: Open32 bug: negative width/height not supported!
206 if (nWidth < 0)
207 {
208 nXLeft += nWidth+1;
209 nWidth = -nWidth;
210 }
211 if (nHeight < 0)
212 {
213 nYLeft += nHeight+1;
214 nHeight = -nHeight;
215 }
216 rc = O32_PatBlt(hdc,nXLeft,nYLeft,nWidth,nHeight,dwRop);
217 if(rc) {
218 DIBSection *destdib = DIBSection::findHDC(hdc);
219 if(destdib) {
220 destdib->sync(hdc, nYLeft, nHeight);
221 }
222 }
223
224 dprintf(("GDI32: PatBlt hdc %x (%d,%d) (%d,%d) returned %d\n",hdc, nXLeft,nYLeft,nWidth,nHeight,rc));
225 return(rc);
226}
227//******************************************************************************
228//******************************************************************************
229BOOL WIN32API MaskBlt( HDC arg1, int arg2, int arg3, int arg4, int arg5, HDC arg6, int arg7, int arg8, HBITMAP arg9, int arg10, int arg11, DWORD arg12)
230{
231 dprintf(("GDI32: MaskBlt"));
232 return O32_MaskBlt(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12);
233}
234//******************************************************************************
235//******************************************************************************
236BOOL WIN32API PlgBlt(HDC hdcDest, CONST POINT *lpPoint, HDC hdcSrc, int nXSrc,
237 int nYSrc, int nWidth, int nHeight, HBITMAP hbmMask,
238 int xMast, int yMask)
239{
240 dprintf(("GDI32: PlgBlt, not implemented\n"));
241 return(FALSE);
242}
243//******************************************************************************
244//******************************************************************************
245INT WIN32API StretchDIBits(HDC hdc, INT xDst, INT yDst, INT widthDst,
246 INT heightDst, INT xSrc, INT ySrc, INT widthSrc,
247 INT heightSrc, const void *bits,
248 const BITMAPINFO *info, UINT wUsage, DWORD dwRop )
249{
250 INT rc;
251
252 dprintf(("GDI32: StretchDIBits %x to (%d,%d) (%d,%d) from (%d,%d) (%d,%d), %x %x %x %x", hdc, xDst, yDst, widthDst, heightDst, xSrc, ySrc, widthSrc, heightSrc, bits, info, wUsage, dwRop));
253
254 if(info->bmiHeader.biBitCount == 1) {
255 dprintf(("WARNING: StretchDIBits does NOT work correctly for 1 bpp bitmaps!!"));
256 }
257
258 if(wUsage == DIB_PAL_COLORS && info->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))
259 {
260 // workaround for open32 bug.
261 // If syscolors > 256 and wUsage == DIB_PAL_COLORS.
262
263 int i;
264 USHORT *pColorIndex = (USHORT *)info->bmiColors;
265 RGBQUAD *pColors = (RGBQUAD *) alloca(info->bmiHeader.biClrUsed *
266 sizeof(RGBQUAD));
267 BITMAPINFO *infoLoc = (BITMAPINFO *) alloca(sizeof(BITMAPINFO) +
268 info->bmiHeader.biClrUsed * sizeof(RGBQUAD));
269
270 memcpy(infoLoc, info, sizeof(BITMAPINFO));
271
272 if(GetDIBColorTable(hdc, 0, info->bmiHeader.biClrUsed, pColors) == 0) {
273 dprintf(("ERROR: StretchDIBits: GetDIBColorTable failed!!"));
274 return FALSE;
275 }
276 for(i=0;i<info->bmiHeader.biClrUsed;i++, pColorIndex++)
277 {
278 infoLoc->bmiColors[i] = pColors[*pColorIndex];
279 }
280
281 rc = O32_StretchDIBits(hdc, xDst, yDst, widthDst, heightDst, xSrc, ySrc,
282 widthSrc, heightSrc, (void *)bits,
283 (PBITMAPINFO)infoLoc, DIB_RGB_COLORS, dwRop);
284
285 //Open32 always returns height of bitmap (regardless of how many scanlines were copied)
286 if(rc != heightSrc && rc != infoLoc->bmiHeader.biHeight) {
287 dprintf(("StretchDIBits failed with rc %x", rc));
288 }
289 else {
290 rc = heightSrc;
291
292 DIBSection *destdib = DIBSection::findHDC(hdc);
293 if(destdib) {
294 if(widthDst == widthSrc && heightDst == heightSrc &&
295 destdib->GetBitCount() == infoLoc->bmiHeader.biBitCount &&
296 destdib->GetBitCount() == 8)
297 {
298 destdib->sync(xDst, yDst, widthDst, heightDst, (PVOID)bits);
299 }
300 else destdib->sync(hdc, yDst, heightDst);
301 }
302 }
303
304 return rc;
305 }
306 rc = O32_StretchDIBits(hdc, xDst, yDst, widthDst, heightDst, xSrc, ySrc,
307 widthSrc, heightSrc, (void *)bits,
308 (PBITMAPINFO)info, wUsage, dwRop);
309 //Open32 always returns height of bitmap (regardless of how many scanlines were copied)
310 if(rc != heightSrc && rc != info->bmiHeader.biHeight) {
311 dprintf(("StretchDIBits failed with rc %x", rc));
312 }
313 else
314 {
315 rc = heightSrc;
316
317 DIBSection *destdib = DIBSection::findHDC(hdc);
318 if(destdib) {
319 if(widthDst == widthSrc && heightDst == heightSrc &&
320 destdib->GetBitCount() == info->bmiHeader.biBitCount &&
321 destdib->GetBitCount() == 8)
322 {
323 destdib->sync(xDst, yDst, widthDst, heightDst, (PVOID)bits);
324 }
325 else destdib->sync(hdc, yDst, heightDst);
326 }
327 }
328
329 return rc;
330}
331//******************************************************************************
332//******************************************************************************
333int WIN32API SetStretchBltMode( HDC arg1, int arg2)
334{
335 dprintf(("GDI32: SetStretchBltMode 0x%08X, 0x%08X\n",arg1, arg2));
336
337 if(DIBSection::getSection() != NULL)
338 {
339 DIBSection *dsect = DIBSection::findHDC(arg1);
340 if(dsect)
341 {
342 dprintf((" - DC is DIBSection\n"));
343 }
344 }
345 return O32_SetStretchBltMode(arg1, arg2);
346}
347//******************************************************************************
348//******************************************************************************
349int WIN32API GetStretchBltMode( HDC arg1)
350{
351 dprintf(("GDI32: GetStretchBltMode"));
352 return O32_GetStretchBltMode(arg1);
353}
354//******************************************************************************
355//******************************************************************************
356static ULONG QueryPaletteSize(BITMAPINFOHEADER *pBHdr)
357{
358 ULONG cbPalette;
359
360 switch (pBHdr->biBitCount)
361 {
362 case 1:
363 case 4:
364 case 8:
365 cbPalette = (1 << pBHdr->biBitCount) * sizeof(RGBQUAD);
366 break;
367
368 case 16:
369 case 24:
370 case 32:
371 cbPalette = 0;
372 break;
373
374 default:
375 dprintf(("QueryPaletteSize: error pBHdr->biBitCount = %d", pBHdr->biBitCount));
376 cbPalette = -1;
377 }
378
379 return cbPalette;
380}
381//******************************************************************************
382//******************************************************************************
383static ULONG CalcBitmapSize(ULONG cBits, LONG cx, LONG cy)
384{
385 ULONG alignment;
386 ULONG factor;
387 BOOL flag = TRUE; //true: '*' false: '/'
388
389 cy = cy < 0 ? -cy : cy;
390
391 switch(cBits)
392 {
393 case 1:
394 factor = 8;
395 flag = FALSE;
396 break;
397
398 case 4:
399 factor = 2;
400 flag = FALSE;
401 break;
402
403 case 8:
404 factor = 1;
405 break;
406
407 case 16:
408 factor = 2;
409 break;
410
411 case 24:
412 factor = 3;
413 break;
414
415 case 32:
416 return cx*cy;
417
418 default:
419 return 0;
420 }
421
422 if (flag)
423 alignment = (cx = (cx*factor)) % 4;
424 else
425 alignment = (cx = ((cx+factor-1)/factor)) % 4;
426
427 if (alignment != 0)
428 cx += 4 - alignment;
429
430 return cx*cy;
431}
432//******************************************************************************
433//******************************************************************************
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