source: trunk/src/gdi32/blit.cpp@ 4371

Last change on this file since 4371 was 4356, checked in by phaller, 25 years ago

.
File size: 15.1 KB
Line 
1/* $Id: blit.cpp,v 1.19 2000-10-01 21:21:15 phaller 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)\n",
37 hdcDest, nXOriginDest, nYOriginDest, nWidthDest, nHeightDest));
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 (%d,%d) to (%d,%d), (%d,%d) rop %X\n",
88 hdcDest, 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 SetLastError(ERROR_SUCCESS);
104 if(info == NULL) {
105 goto invalid_parameter;
106 }
107 height = info->bmiHeader.biHeight;
108 width = info->bmiHeader.biWidth;
109
110 if (height < 0) height = -height;
111 if (!lines || (startscan >= height)) {
112 goto invalid_parameter;
113 }
114 if (startscan + lines > height) lines = height - startscan;
115
116 if (ySrc < startscan) ySrc = startscan;
117 else if (ySrc >= startscan + lines) goto invalid_parameter;
118
119 if (xSrc >= width) goto invalid_parameter;
120
121 if (ySrc + cy >= startscan + lines) cy = startscan + lines - ySrc;
122
123 if (xSrc + cx >= width) cx = width - xSrc;
124
125 if (!cx || !cy) goto invalid_parameter;
126
127 // EB: ->>> Crazy. Nobody seen this Open32 bug ?
128 // Dont't like dirty pointers, but Open32 needs a bit help.
129 // Only tested with winmine.
130 palsize = QueryPaletteSize((BITMAPINFOHEADER*)&info->bmiHeader);
131 imgsize = CalcBitmapSize(info->bmiHeader.biBitCount,
132 info->bmiHeader.biWidth, info->bmiHeader.biHeight);
133 ptr = ((char *)info) + palsize + sizeof(BITMAPINFOHEADER);
134 if(bits >= ptr && bits < ptr + imgsize)
135 {
136 bits = (char *)bits - imgsize +
137 CalcBitmapSize(info->bmiHeader.biBitCount,
138 info->bmiHeader.biWidth, lines);
139 }
140 // EB: <<<-
141
142 //SvL: RP7's bitmap size is not correct; fix it here or else
143 // the blit is messed up in Open32
144 bmpsize = info->bmiHeader.biSizeImage;
145 if(info->bmiHeader.biCompression == 0 && info->bmiHeader.biSizeImage &&
146 info->bmiHeader.biSizeImage < imgsize)
147 {
148 ((BITMAPINFO *)info)->bmiHeader.biSizeImage = imgsize;
149 }
150
151 //SvL: Ignore BI_BITFIELDS type (SetDIBitsToDevice fails otherwise)
152 if(info->bmiHeader.biCompression == BI_BITFIELDS) {
153 DWORD *bitfields = (DWORD *)info->bmiColors;
154
155 ((BITMAPINFO *)info)->bmiHeader.biCompression = 0;
156 compression = BI_BITFIELDS;
157
158 if(*(bitfields+1) == 0x3E0)
159 {//RGB 555?
160 dprintf(("BI_BITFIELDS compression %x %x %x", *bitfields, *(bitfields+1), *(bitfields+2)));
161
162 newbits = (WORD *)malloc(imgsize);
163 if(CPUFeatures & CPUID_MMX) {
164 RGB555to565MMX(newbits, (WORD *)bits, imgsize/sizeof(WORD));
165 }
166 else RGB555to565(newbits, (WORD *)bits, imgsize/sizeof(WORD));
167 bits = newbits;
168 }
169 }
170
171 iHeight = info->bmiHeader.biHeight;
172 if(info->bmiHeader.biHeight < 0) {
173 ((BITMAPINFO *)info)->bmiHeader.biHeight = -info->bmiHeader.biHeight;
174 }
175 result = O32_SetDIBitsToDevice(hdc, xDest, yDest, cx, cy, xSrc, ySrc, startscan, lines, (PVOID) bits, (PBITMAPINFO)info, coloruse);
176 //SvL: Wrong Open32 return value
177// result = (result == TRUE) ? lines : 0;
178 result = (result == TRUE) ? cy : 0;
179
180 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",
181 hdc, xDest, yDest, cx, cy, xSrc, ySrc, startscan, lines, (LPVOID) bits, (PBITMAPINFO)info, coloruse, result));
182 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));
183
184 if(compression == BI_BITFIELDS) {
185 ((BITMAPINFO *)info)->bmiHeader.biCompression = BI_BITFIELDS;
186 if(newbits) free(newbits);
187 }
188 ((BITMAPINFO *)info)->bmiHeader.biHeight = iHeight;
189 ((BITMAPINFO *)info)->bmiHeader.biSizeImage = bmpsize;
190 return result;
191
192invalid_parameter:
193 SetLastError(ERROR_INVALID_PARAMETER);
194 return 0;
195}
196//******************************************************************************
197//******************************************************************************
198BOOL WIN32API PatBlt(HDC hdc,int nXLeft,int nYLeft,int nWidth,int nHeight,DWORD dwRop)
199{
200 BOOL rc;
201
202 //CB: Open32 bug: negative width/height not supported!
203 if (nWidth < 0)
204 {
205 nXLeft += nWidth+1;
206 nWidth = -nWidth;
207 }
208 if (nHeight < 0)
209 {
210 nYLeft += nHeight+1;
211 nHeight = -nHeight;
212 }
213 rc = O32_PatBlt(hdc,nXLeft,nYLeft,nWidth,nHeight,dwRop);
214 if(rc) {
215 DIBSection *destdib = DIBSection::findHDC(hdc);
216 if(destdib) {
217 destdib->sync(hdc, nYLeft, nHeight);
218 }
219 }
220
221 dprintf(("GDI32: PatBlt hdc %x (%d,%d) (%d,%d) returned %d\n",hdc, nXLeft,nYLeft,nWidth,nHeight,rc));
222 return(rc);
223}
224//******************************************************************************
225//******************************************************************************
226BOOL 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)
227{
228 dprintf(("GDI32: MaskBlt"));
229 return O32_MaskBlt(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12);
230}
231//******************************************************************************
232//******************************************************************************
233BOOL WIN32API PlgBlt(HDC hdcDest, CONST POINT *lpPoint, HDC hdcSrc, int nXSrc,
234 int nYSrc, int nWidth, int nHeight, HBITMAP hbmMask,
235 int xMast, int yMask)
236{
237 dprintf(("GDI32: PlgBlt, not implemented\n"));
238 return(FALSE);
239}
240//******************************************************************************
241//******************************************************************************
242INT WIN32API StretchDIBits(HDC hdc, INT xDst, INT yDst, INT widthDst,
243 INT heightDst, INT xSrc, INT ySrc, INT widthSrc,
244 INT heightSrc, const void *bits,
245 const BITMAPINFO *info, UINT wUsage, DWORD dwRop )
246{
247 INT rc;
248
249 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));
250
251 if(wUsage == DIB_PAL_COLORS && info->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))
252 {
253 // workaround for open32 bug.
254 // If syscolors > 256 and wUsage == DIB_PAL_COLORS.
255
256 int i;
257 USHORT *pColorIndex = (USHORT *)info->bmiColors;
258 RGBQUAD *pColors = (RGBQUAD *) alloca(info->bmiHeader.biClrUsed *
259 sizeof(RGBQUAD));
260 BITMAPINFO *infoLoc = (BITMAPINFO *) alloca(sizeof(BITMAPINFO) +
261 info->bmiHeader.biClrUsed * sizeof(RGBQUAD));
262
263 memcpy(infoLoc, info, sizeof(BITMAPINFO));
264
265 if(GetDIBColorTable(hdc, 0, info->bmiHeader.biClrUsed, pColors) == 0) {
266 dprintf(("ERROR: StretchDIBits: GetDIBColorTable failed!!"));
267 return FALSE;
268 }
269 for(i=0;i<info->bmiHeader.biClrUsed;i++, pColorIndex++)
270 {
271 infoLoc->bmiColors[i] = pColors[*pColorIndex];
272 }
273
274 rc = O32_StretchDIBits(hdc, xDst, yDst, widthDst, heightDst, xSrc, ySrc,
275 widthSrc, heightSrc, (void *)bits,
276 (PBITMAPINFO)infoLoc, DIB_RGB_COLORS, dwRop);
277
278 //Open32 always returns height of bitmap (regardless of how many scanlines were copied)
279 if(rc != heightSrc && rc != infoLoc->bmiHeader.biHeight) {
280 dprintf(("StretchDIBits failed with rc %x", rc));
281 }
282 else {
283 rc = heightSrc;
284
285 DIBSection *destdib = DIBSection::findHDC(hdc);
286 if(destdib) {
287 if(widthDst == widthSrc && heightDst == heightSrc &&
288 destdib->GetBitCount() == infoLoc->bmiHeader.biBitCount &&
289 destdib->GetBitCount() == 8)
290 {
291 destdib->sync(xDst, yDst, widthDst, heightDst, (PVOID)bits);
292 }
293 else destdib->sync(hdc, yDst, heightDst);
294 }
295 }
296
297 return rc;
298 }
299 rc = O32_StretchDIBits(hdc, xDst, yDst, widthDst, heightDst, xSrc, ySrc,
300 widthSrc, heightSrc, (void *)bits,
301 (PBITMAPINFO)info, wUsage, dwRop);
302 //Open32 always returns height of bitmap (regardless of how many scanlines were copied)
303 if(rc != heightSrc && rc != info->bmiHeader.biHeight) {
304 dprintf(("StretchDIBits failed with rc %x", rc));
305 }
306 else
307 {
308 rc = heightSrc;
309
310 DIBSection *destdib = DIBSection::findHDC(hdc);
311 if(destdib) {
312 if(widthDst == widthSrc && heightDst == heightSrc &&
313 destdib->GetBitCount() == info->bmiHeader.biBitCount &&
314 destdib->GetBitCount() == 8)
315 {
316 destdib->sync(xDst, yDst, widthDst, heightDst, (PVOID)bits);
317 }
318 else destdib->sync(hdc, yDst, heightDst);
319 }
320 }
321
322 return rc;
323}
324//******************************************************************************
325//******************************************************************************
326int WIN32API SetStretchBltMode( HDC arg1, int arg2)
327{
328 dprintf(("GDI32: SetStretchBltMode 0x%08X, 0x%08X\n",arg1, arg2));
329
330 if(DIBSection::getSection() != NULL)
331 {
332 DIBSection *dsect = DIBSection::findHDC(arg1);
333 if(dsect)
334 {
335 dprintf((" - DC is DIBSection\n"));
336 }
337 }
338 return O32_SetStretchBltMode(arg1, arg2);
339}
340//******************************************************************************
341//******************************************************************************
342int WIN32API GetStretchBltMode( HDC arg1)
343{
344 dprintf(("GDI32: GetStretchBltMode"));
345 return O32_GetStretchBltMode(arg1);
346}
347//******************************************************************************
348//******************************************************************************
349static ULONG QueryPaletteSize(BITMAPINFOHEADER *pBHdr)
350{
351 ULONG cbPalette;
352
353 switch (pBHdr->biBitCount)
354 {
355 case 1:
356 case 4:
357 case 8:
358 cbPalette = (1 << pBHdr->biBitCount) * sizeof(RGBQUAD);
359 break;
360
361 case 16:
362 case 24:
363 case 32:
364 cbPalette = 0;
365 break;
366
367 default:
368 dprintf(("QueryPaletteSize: error pBHdr->biBitCount = %d", pBHdr->biBitCount));
369 cbPalette = -1;
370 }
371
372 return cbPalette;
373}
374//******************************************************************************
375//******************************************************************************
376static ULONG CalcBitmapSize(ULONG cBits, LONG cx, LONG cy)
377{
378 ULONG alignment;
379 ULONG factor;
380 BOOL flag = TRUE; //true: '*' false: '/'
381
382 cy = cy < 0 ? -cy : cy;
383
384 switch(cBits)
385 {
386 case 1:
387 factor = 8;
388 flag = FALSE;
389 break;
390
391 case 4:
392 factor = 2;
393 flag = FALSE;
394 break;
395
396 case 8:
397 factor = 1;
398 break;
399
400 case 16:
401 factor = 2;
402 break;
403
404 case 24:
405 factor = 3;
406 break;
407
408 case 32:
409 return cx*cy;
410
411 default:
412 return 0;
413 }
414
415 if (flag)
416 alignment = (cx = (cx*factor)) % 4;
417 else
418 alignment = (cx = ((cx+factor-1)/factor)) % 4;
419
420 if (alignment != 0)
421 cx += 4 - alignment;
422
423 return cx*cy;
424}
425//******************************************************************************
426//******************************************************************************
Note: See TracBrowser for help on using the repository browser.