Mercurial > sdl-ios-xcode
annotate src/video/SDL_bmp.c @ 1882:339d733e3699
Fixed bug #258
Account for the menu height in AdjustWindowRectEx()
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 24 Jun 2006 04:30:01 +0000 |
parents | d910939febfa |
children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
rev | line source |
---|---|
0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1012
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1012
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
0 | 7 License as published by the Free Software Foundation; either |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1012
diff
changeset
|
8 version 2.1 of the License, or (at your option) any later version. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1012
diff
changeset
|
13 Lesser General Public License for more details. |
0 | 14 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1012
diff
changeset
|
15 You should have received a copy of the GNU Lesser General Public |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1012
diff
changeset
|
16 License along with this library; if not, write to the Free Software |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1012
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
0 | 18 |
19 Sam Lantinga | |
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
20 slouken@libsdl.org |
0 | 21 */ |
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1361
diff
changeset
|
22 #include "SDL_config.h" |
0 | 23 |
24 /* | |
25 Code to load and save surfaces in Windows BMP format. | |
26 | |
27 Why support BMP format? Well, it's a native format for Windows, and | |
28 most image processing programs can read and write it. It would be nice | |
29 to be able to have at least one image format that we can natively load | |
30 and save, and since PNG is so complex that it would bloat the library, | |
31 BMP is a good alternative. | |
32 | |
33 This code currently supports Win32 DIBs in uncompressed 8 and 24 bpp. | |
34 */ | |
35 | |
36 #include "SDL_video.h" | |
37 #include "SDL_endian.h" | |
38 | |
39 /* Compression encodings for BMP files */ | |
40 #ifndef BI_RGB | |
41 #define BI_RGB 0 | |
42 #define BI_RLE8 1 | |
43 #define BI_RLE4 2 | |
44 #define BI_BITFIELDS 3 | |
45 #endif | |
46 | |
47 | |
48 SDL_Surface * SDL_LoadBMP_RW (SDL_RWops *src, int freesrc) | |
49 { | |
50 int was_error; | |
51 long fp_offset; | |
52 int bmpPitch; | |
53 int i, pad; | |
54 SDL_Surface *surface; | |
55 Uint32 Rmask; | |
56 Uint32 Gmask; | |
57 Uint32 Bmask; | |
58 SDL_Palette *palette; | |
59 Uint8 *bits; | |
60 int ExpandBMP; | |
61 | |
62 /* The Win32 BMP file header (14 bytes) */ | |
63 char magic[2]; | |
64 Uint32 bfSize; | |
65 Uint16 bfReserved1; | |
66 Uint16 bfReserved2; | |
67 Uint32 bfOffBits; | |
68 | |
69 /* The Win32 BITMAPINFOHEADER struct (40 bytes) */ | |
70 Uint32 biSize; | |
71 Sint32 biWidth; | |
72 Sint32 biHeight; | |
73 Uint16 biPlanes; | |
74 Uint16 biBitCount; | |
75 Uint32 biCompression; | |
76 Uint32 biSizeImage; | |
77 Sint32 biXPelsPerMeter; | |
78 Sint32 biYPelsPerMeter; | |
79 Uint32 biClrUsed; | |
80 Uint32 biClrImportant; | |
81 | |
82 /* Make sure we are passed a valid data source */ | |
83 surface = NULL; | |
84 was_error = 0; | |
85 if ( src == NULL ) { | |
86 was_error = 1; | |
87 goto done; | |
88 } | |
89 | |
90 /* Read in the BMP file header */ | |
91 fp_offset = SDL_RWtell(src); | |
92 SDL_ClearError(); | |
93 if ( SDL_RWread(src, magic, 1, 2) != 2 ) { | |
94 SDL_Error(SDL_EFREAD); | |
95 was_error = 1; | |
96 goto done; | |
97 } | |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
98 if ( SDL_strncmp(magic, "BM", 2) != 0 ) { |
0 | 99 SDL_SetError("File is not a Windows BMP file"); |
100 was_error = 1; | |
101 goto done; | |
102 } | |
103 bfSize = SDL_ReadLE32(src); | |
104 bfReserved1 = SDL_ReadLE16(src); | |
105 bfReserved2 = SDL_ReadLE16(src); | |
106 bfOffBits = SDL_ReadLE32(src); | |
107 | |
108 /* Read the Win32 BITMAPINFOHEADER */ | |
109 biSize = SDL_ReadLE32(src); | |
110 if ( biSize == 12 ) { | |
111 biWidth = (Uint32)SDL_ReadLE16(src); | |
112 biHeight = (Uint32)SDL_ReadLE16(src); | |
113 biPlanes = SDL_ReadLE16(src); | |
114 biBitCount = SDL_ReadLE16(src); | |
115 biCompression = BI_RGB; | |
116 biSizeImage = 0; | |
117 biXPelsPerMeter = 0; | |
118 biYPelsPerMeter = 0; | |
119 biClrUsed = 0; | |
120 biClrImportant = 0; | |
121 } else { | |
122 biWidth = SDL_ReadLE32(src); | |
123 biHeight = SDL_ReadLE32(src); | |
124 biPlanes = SDL_ReadLE16(src); | |
125 biBitCount = SDL_ReadLE16(src); | |
126 biCompression = SDL_ReadLE32(src); | |
127 biSizeImage = SDL_ReadLE32(src); | |
128 biXPelsPerMeter = SDL_ReadLE32(src); | |
129 biYPelsPerMeter = SDL_ReadLE32(src); | |
130 biClrUsed = SDL_ReadLE32(src); | |
131 biClrImportant = SDL_ReadLE32(src); | |
132 } | |
133 | |
134 /* Check for read error */ | |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
135 if ( SDL_strcmp(SDL_GetError(), "") != 0 ) { |
0 | 136 was_error = 1; |
137 goto done; | |
138 } | |
139 | |
140 /* Expand 1 and 4 bit bitmaps to 8 bits per pixel */ | |
141 switch (biBitCount) { | |
142 case 1: | |
143 case 4: | |
144 ExpandBMP = biBitCount; | |
145 biBitCount = 8; | |
146 break; | |
147 default: | |
148 ExpandBMP = 0; | |
149 break; | |
150 } | |
151 | |
152 /* We don't support any BMP compression right now */ | |
153 Rmask = Gmask = Bmask = 0; | |
154 switch (biCompression) { | |
155 case BI_RGB: | |
156 /* If there are no masks, use the defaults */ | |
157 if ( bfOffBits == (14+biSize) ) { | |
158 /* Default values for the BMP format */ | |
159 switch (biBitCount) { | |
160 case 15: | |
161 case 16: | |
162 Rmask = 0x7C00; | |
163 Gmask = 0x03E0; | |
164 Bmask = 0x001F; | |
165 break; | |
166 case 24: | |
167 #if SDL_BYTEORDER == SDL_BIG_ENDIAN | |
168 Rmask = 0x000000FF; | |
169 Gmask = 0x0000FF00; | |
170 Bmask = 0x00FF0000; | |
171 break; | |
172 #endif | |
173 case 32: | |
174 Rmask = 0x00FF0000; | |
175 Gmask = 0x0000FF00; | |
176 Bmask = 0x000000FF; | |
177 break; | |
178 default: | |
179 break; | |
180 } | |
181 break; | |
182 } | |
183 /* Fall through -- read the RGB masks */ | |
184 | |
185 case BI_BITFIELDS: | |
186 switch (biBitCount) { | |
187 case 15: | |
188 case 16: | |
189 case 32: | |
190 Rmask = SDL_ReadLE32(src); | |
191 Gmask = SDL_ReadLE32(src); | |
192 Bmask = SDL_ReadLE32(src); | |
193 break; | |
194 default: | |
195 break; | |
196 } | |
197 break; | |
198 default: | |
199 SDL_SetError("Compressed BMP files not supported"); | |
200 was_error = 1; | |
201 goto done; | |
202 } | |
203 | |
204 /* Create a compatible surface, note that the colors are RGB ordered */ | |
205 surface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
206 biWidth, biHeight, biBitCount, Rmask, Gmask, Bmask, 0); | |
207 if ( surface == NULL ) { | |
208 was_error = 1; | |
209 goto done; | |
210 } | |
211 | |
212 /* Load the palette, if any */ | |
213 palette = (surface->format)->palette; | |
214 if ( palette ) { | |
215 if ( biClrUsed == 0 ) { | |
216 biClrUsed = 1 << biBitCount; | |
217 } | |
218 if ( biSize == 12 ) { | |
219 for ( i = 0; i < (int)biClrUsed; ++i ) { | |
220 SDL_RWread(src, &palette->colors[i].b, 1, 1); | |
221 SDL_RWread(src, &palette->colors[i].g, 1, 1); | |
222 SDL_RWread(src, &palette->colors[i].r, 1, 1); | |
223 palette->colors[i].unused = 0; | |
224 } | |
225 } else { | |
226 for ( i = 0; i < (int)biClrUsed; ++i ) { | |
227 SDL_RWread(src, &palette->colors[i].b, 1, 1); | |
228 SDL_RWread(src, &palette->colors[i].g, 1, 1); | |
229 SDL_RWread(src, &palette->colors[i].r, 1, 1); | |
230 SDL_RWread(src, &palette->colors[i].unused, 1, 1); | |
231 } | |
232 } | |
233 palette->ncolors = biClrUsed; | |
234 } | |
235 | |
236 /* Read the surface pixels. Note that the bmp image is upside down */ | |
1330
450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1329
diff
changeset
|
237 if ( SDL_RWseek(src, fp_offset+bfOffBits, RW_SEEK_SET) < 0 ) { |
0 | 238 SDL_Error(SDL_EFSEEK); |
239 was_error = 1; | |
240 goto done; | |
241 } | |
242 bits = (Uint8 *)surface->pixels+(surface->h*surface->pitch); | |
243 switch (ExpandBMP) { | |
244 case 1: | |
245 bmpPitch = (biWidth + 7) >> 3; | |
246 pad = (((bmpPitch)%4) ? (4-((bmpPitch)%4)) : 0); | |
247 break; | |
248 case 4: | |
249 bmpPitch = (biWidth + 1) >> 1; | |
250 pad = (((bmpPitch)%4) ? (4-((bmpPitch)%4)) : 0); | |
251 break; | |
252 default: | |
253 pad = ((surface->pitch%4) ? | |
254 (4-(surface->pitch%4)) : 0); | |
255 break; | |
256 } | |
257 while ( bits > (Uint8 *)surface->pixels ) { | |
258 bits -= surface->pitch; | |
259 switch (ExpandBMP) { | |
260 case 1: | |
261 case 4: { | |
262 Uint8 pixel = 0; | |
263 int shift = (8-ExpandBMP); | |
264 for ( i=0; i<surface->w; ++i ) { | |
265 if ( i%(8/ExpandBMP) == 0 ) { | |
266 if ( !SDL_RWread(src, &pixel, 1, 1) ) { | |
267 SDL_SetError( | |
268 "Error reading from BMP"); | |
269 was_error = 1; | |
270 goto done; | |
271 } | |
272 } | |
273 *(bits+i) = (pixel>>shift); | |
274 pixel <<= ExpandBMP; | |
275 } } | |
276 break; | |
277 | |
278 default: | |
279 if ( SDL_RWread(src, bits, 1, surface->pitch) | |
280 != surface->pitch ) { | |
281 SDL_Error(SDL_EFREAD); | |
282 was_error = 1; | |
283 goto done; | |
284 } | |
285 #if SDL_BYTEORDER == SDL_BIG_ENDIAN | |
286 /* Byte-swap the pixels if needed. Note that the 24bpp | |
287 case has already been taken care of above. */ | |
288 switch(biBitCount) { | |
289 case 15: | |
290 case 16: { | |
291 Uint16 *pix = (Uint16 *)bits; | |
292 for(i = 0; i < surface->w; i++) | |
293 pix[i] = SDL_Swap16(pix[i]); | |
294 break; | |
295 } | |
296 | |
297 case 32: { | |
298 Uint32 *pix = (Uint32 *)bits; | |
299 for(i = 0; i < surface->w; i++) | |
300 pix[i] = SDL_Swap32(pix[i]); | |
301 break; | |
302 } | |
303 } | |
304 #endif | |
305 break; | |
306 } | |
307 /* Skip padding bytes, ugh */ | |
308 if ( pad ) { | |
309 Uint8 padbyte; | |
310 for ( i=0; i<pad; ++i ) { | |
311 SDL_RWread(src, &padbyte, 1, 1); | |
312 } | |
313 } | |
314 } | |
315 done: | |
316 if ( was_error ) { | |
1329
bc67bbf87818
Seek back to start on error
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
317 if ( src ) { |
1330
450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1329
diff
changeset
|
318 SDL_RWseek(src, fp_offset, RW_SEEK_SET); |
1329
bc67bbf87818
Seek back to start on error
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
319 } |
0 | 320 if ( surface ) { |
321 SDL_FreeSurface(surface); | |
322 } | |
323 surface = NULL; | |
324 } | |
325 if ( freesrc && src ) { | |
326 SDL_RWclose(src); | |
327 } | |
328 return(surface); | |
329 } | |
330 | |
331 int SDL_SaveBMP_RW (SDL_Surface *saveme, SDL_RWops *dst, int freedst) | |
332 { | |
333 long fp_offset; | |
334 int i, pad; | |
335 SDL_Surface *surface; | |
336 Uint8 *bits; | |
337 | |
338 /* The Win32 BMP file header (14 bytes) */ | |
339 char magic[2] = { 'B', 'M' }; | |
340 Uint32 bfSize; | |
341 Uint16 bfReserved1; | |
342 Uint16 bfReserved2; | |
343 Uint32 bfOffBits; | |
344 | |
345 /* The Win32 BITMAPINFOHEADER struct (40 bytes) */ | |
346 Uint32 biSize; | |
347 Sint32 biWidth; | |
348 Sint32 biHeight; | |
349 Uint16 biPlanes; | |
350 Uint16 biBitCount; | |
351 Uint32 biCompression; | |
352 Uint32 biSizeImage; | |
353 Sint32 biXPelsPerMeter; | |
354 Sint32 biYPelsPerMeter; | |
355 Uint32 biClrUsed; | |
356 Uint32 biClrImportant; | |
357 | |
358 /* Make sure we have somewhere to save */ | |
359 surface = NULL; | |
360 if ( dst ) { | |
361 if ( saveme->format->palette ) { | |
362 if ( saveme->format->BitsPerPixel == 8 ) { | |
363 surface = saveme; | |
364 } else { | |
365 SDL_SetError("%d bpp BMP files not supported", | |
366 saveme->format->BitsPerPixel); | |
367 } | |
368 } | |
369 else if ( (saveme->format->BitsPerPixel == 24) && | |
370 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
371 (saveme->format->Rmask == 0x00FF0000) && | |
372 (saveme->format->Gmask == 0x0000FF00) && | |
373 (saveme->format->Bmask == 0x000000FF) | |
374 #else | |
375 (saveme->format->Rmask == 0x000000FF) && | |
376 (saveme->format->Gmask == 0x0000FF00) && | |
377 (saveme->format->Bmask == 0x00FF0000) | |
378 #endif | |
379 ) { | |
380 surface = saveme; | |
381 } else { | |
382 SDL_Rect bounds; | |
383 | |
384 /* Convert to 24 bits per pixel */ | |
385 surface = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
386 saveme->w, saveme->h, 24, | |
387 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
388 0x00FF0000, 0x0000FF00, 0x000000FF, | |
389 #else | |
390 0x000000FF, 0x0000FF00, 0x00FF0000, | |
391 #endif | |
392 0); | |
393 if ( surface != NULL ) { | |
394 bounds.x = 0; | |
395 bounds.y = 0; | |
396 bounds.w = saveme->w; | |
397 bounds.h = saveme->h; | |
398 if ( SDL_LowerBlit(saveme, &bounds, surface, | |
399 &bounds) < 0 ) { | |
400 SDL_FreeSurface(surface); | |
401 SDL_SetError( | |
402 "Couldn't convert image to 24 bpp"); | |
403 surface = NULL; | |
404 } | |
405 } | |
406 } | |
407 } | |
408 | |
409 if ( surface && (SDL_LockSurface(surface) == 0) ) { | |
1012
f14e3059e138
Date: Mon, 13 Dec 2004 21:28:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
410 const int bw = surface->w*surface->format->BytesPerPixel; |
f14e3059e138
Date: Mon, 13 Dec 2004 21:28:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
411 |
0 | 412 /* Set the BMP file header values */ |
413 bfSize = 0; /* We'll write this when we're done */ | |
414 bfReserved1 = 0; | |
415 bfReserved2 = 0; | |
416 bfOffBits = 0; /* We'll write this when we're done */ | |
417 | |
418 /* Write the BMP file header values */ | |
419 fp_offset = SDL_RWtell(dst); | |
420 SDL_ClearError(); | |
421 SDL_RWwrite(dst, magic, 2, 1); | |
422 SDL_WriteLE32(dst, bfSize); | |
423 SDL_WriteLE16(dst, bfReserved1); | |
424 SDL_WriteLE16(dst, bfReserved2); | |
425 SDL_WriteLE32(dst, bfOffBits); | |
426 | |
427 /* Set the BMP info values */ | |
428 biSize = 40; | |
429 biWidth = surface->w; | |
430 biHeight = surface->h; | |
431 biPlanes = 1; | |
432 biBitCount = surface->format->BitsPerPixel; | |
433 biCompression = BI_RGB; | |
434 biSizeImage = surface->h*surface->pitch; | |
435 biXPelsPerMeter = 0; | |
436 biYPelsPerMeter = 0; | |
437 if ( surface->format->palette ) { | |
438 biClrUsed = surface->format->palette->ncolors; | |
439 } else { | |
440 biClrUsed = 0; | |
441 } | |
442 biClrImportant = 0; | |
443 | |
444 /* Write the BMP info values */ | |
445 SDL_WriteLE32(dst, biSize); | |
446 SDL_WriteLE32(dst, biWidth); | |
447 SDL_WriteLE32(dst, biHeight); | |
448 SDL_WriteLE16(dst, biPlanes); | |
449 SDL_WriteLE16(dst, biBitCount); | |
450 SDL_WriteLE32(dst, biCompression); | |
451 SDL_WriteLE32(dst, biSizeImage); | |
452 SDL_WriteLE32(dst, biXPelsPerMeter); | |
453 SDL_WriteLE32(dst, biYPelsPerMeter); | |
454 SDL_WriteLE32(dst, biClrUsed); | |
455 SDL_WriteLE32(dst, biClrImportant); | |
456 | |
457 /* Write the palette (in BGR color order) */ | |
458 if ( surface->format->palette ) { | |
459 SDL_Color *colors; | |
460 int ncolors; | |
461 | |
462 colors = surface->format->palette->colors; | |
463 ncolors = surface->format->palette->ncolors; | |
464 for ( i=0; i<ncolors; ++i ) { | |
465 SDL_RWwrite(dst, &colors[i].b, 1, 1); | |
466 SDL_RWwrite(dst, &colors[i].g, 1, 1); | |
467 SDL_RWwrite(dst, &colors[i].r, 1, 1); | |
468 SDL_RWwrite(dst, &colors[i].unused, 1, 1); | |
469 } | |
470 } | |
471 | |
472 /* Write the bitmap offset */ | |
473 bfOffBits = SDL_RWtell(dst)-fp_offset; | |
1330
450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1329
diff
changeset
|
474 if ( SDL_RWseek(dst, fp_offset+10, RW_SEEK_SET) < 0 ) { |
0 | 475 SDL_Error(SDL_EFSEEK); |
476 } | |
477 SDL_WriteLE32(dst, bfOffBits); | |
1330
450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1329
diff
changeset
|
478 if ( SDL_RWseek(dst, fp_offset+bfOffBits, RW_SEEK_SET) < 0 ) { |
0 | 479 SDL_Error(SDL_EFSEEK); |
480 } | |
481 | |
482 /* Write the bitmap image upside down */ | |
483 bits = (Uint8 *)surface->pixels+(surface->h*surface->pitch); | |
1012
f14e3059e138
Date: Mon, 13 Dec 2004 21:28:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
484 pad = ((bw%4) ? (4-(bw%4)) : 0); |
0 | 485 while ( bits > (Uint8 *)surface->pixels ) { |
486 bits -= surface->pitch; | |
1012
f14e3059e138
Date: Mon, 13 Dec 2004 21:28:18 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
487 if ( SDL_RWwrite(dst, bits, 1, bw) != bw) { |
0 | 488 SDL_Error(SDL_EFWRITE); |
489 break; | |
490 } | |
491 if ( pad ) { | |
492 const Uint8 padbyte = 0; | |
493 for ( i=0; i<pad; ++i ) { | |
494 SDL_RWwrite(dst, &padbyte, 1, 1); | |
495 } | |
496 } | |
497 } | |
498 | |
499 /* Write the BMP file size */ | |
500 bfSize = SDL_RWtell(dst)-fp_offset; | |
1330
450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1329
diff
changeset
|
501 if ( SDL_RWseek(dst, fp_offset+2, RW_SEEK_SET) < 0 ) { |
0 | 502 SDL_Error(SDL_EFSEEK); |
503 } | |
504 SDL_WriteLE32(dst, bfSize); | |
1330
450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1329
diff
changeset
|
505 if ( SDL_RWseek(dst, fp_offset+bfSize, RW_SEEK_SET) < 0 ) { |
0 | 506 SDL_Error(SDL_EFSEEK); |
507 } | |
508 | |
509 /* Close it up.. */ | |
510 SDL_UnlockSurface(surface); | |
511 if ( surface != saveme ) { | |
512 SDL_FreeSurface(surface); | |
513 } | |
514 } | |
515 | |
516 if ( freedst && dst ) { | |
517 SDL_RWclose(dst); | |
518 } | |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
519 return((SDL_strcmp(SDL_GetError(), "") == 0) ? 0 : -1); |
0 | 520 } |