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Diffstat (limited to 'libraries/evas/src/modules/loaders/ico/evas_image_load_ico.c')
-rw-r--r--libraries/evas/src/modules/loaders/ico/evas_image_load_ico.c770
1 files changed, 770 insertions, 0 deletions
diff --git a/libraries/evas/src/modules/loaders/ico/evas_image_load_ico.c b/libraries/evas/src/modules/loaders/ico/evas_image_load_ico.c
new file mode 100644
index 0000000..17a7f7e
--- /dev/null
+++ b/libraries/evas/src/modules/loaders/ico/evas_image_load_ico.c
@@ -0,0 +1,770 @@
1#ifdef HAVE_CONFIG_H
2# include <config.h>
3#endif
4
5#include <stdio.h>
6
7#ifdef HAVE_EVIL
8# include <Evil.h>
9#endif
10
11#include "evas_common.h"
12#include "evas_private.h"
13
14static Eina_Bool evas_image_load_file_head_ico(Image_Entry *ie, const char *file, const char *key, int *error) EINA_ARG_NONNULL(1, 2, 4);
15static Eina_Bool evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key, int *error) EINA_ARG_NONNULL(1, 2, 4);
16
17static Evas_Image_Load_Func evas_image_load_ico_func =
18{
19 EINA_TRUE,
20 evas_image_load_file_head_ico,
21 evas_image_load_file_data_ico,
22 NULL
23};
24
25static int
26read_ushort(FILE *file, unsigned short *ret)
27{
28 unsigned char b[2];
29 if (fread(b, sizeof(unsigned char), 2, file) != 2) return 0;
30 *ret = (b[1] << 8) | b[0];
31 return 1;
32}
33
34static int
35read_uint(FILE *file, unsigned int *ret)
36{
37 unsigned char b[4];
38 if (fread(b, sizeof(unsigned char), 4, file) != 4) return 0;
39 *ret = ARGB_JOIN(b[3], b[2], b[1], b[0]);
40 return 1;
41}
42
43enum
44{
45 SMALLEST,
46 BIGGEST,
47 SMALLER,
48 BIGGER
49};
50
51enum
52{
53 ICON = 1,
54 CURSOR = 2
55};
56
57static Eina_Bool
58evas_image_load_file_head_ico(Image_Entry *ie, const char *file, const char *key, int *error)
59{
60 unsigned short word;
61 unsigned char byte;
62 FILE *f;
63 int wanted_w = 0, wanted_h = 0, w, h, cols, i, planes = 0,
64 hot_x = 0, hot_y = 0, bpp = 0, pdelta, search = -1, have_choice = 0,
65 hasa = 1;
66 unsigned int bmoffset, bmsize, fsize;
67 unsigned short reserved, type, count;
68 struct {
69 int pdelta;
70 int w, h;
71 int cols;
72 int bpp, planes;
73 int hot_x, hot_y;
74 unsigned int bmoffset, bmsize;
75 } chosen = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
76
77 f = fopen(file, "rb");
78 if (!f)
79 {
80 *error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
81 return EINA_FALSE;
82 }
83
84 *error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
85 fseek(f, 0, SEEK_END);
86 fsize = ftell(f);
87 fseek(f, 0, SEEK_SET);
88 if (fsize < (6 + 16 + 40)) goto close_file;
89
90 // key:
91 // NULL == highest res
92 // biggest == highest res
93 // smallest == lowest res
94 //
95 // smaller == next size SMALLER than load opts WxH (if possible)
96 // bigger == next size BIGGER than load opts WxH (if possible)
97 // more ?
98
99 search = BIGGEST;
100 if ((ie->load_opts.w > 0) && (ie->load_opts.h > 0))
101 {
102 wanted_w = ie->load_opts.w;
103 wanted_h = ie->load_opts.h;
104 search = SMALLER;
105 }
106
107 if (!read_ushort(f, &reserved)) goto close_file;
108 if (!read_ushort(f, &type)) goto close_file;
109 if (!read_ushort(f, &count)) goto close_file;
110 if (!((reserved == 0) &&
111 ((type == ICON) || (type == CURSOR)) && (count > 0)))
112 goto close_file;
113 *error = EVAS_LOAD_ERROR_CORRUPT_FILE;
114
115 if (key)
116 {
117 if (!strcmp(key, "biggest"))
118 {
119 wanted_w = 0;
120 wanted_h = 0;
121 search = BIGGEST;
122 chosen.pdelta = 0;
123 }
124 else if (!strcmp(key, "smallest"))
125 {
126 wanted_w = 1;
127 wanted_h = 1;
128 search = SMALLEST;
129 chosen.pdelta = 0x7fffffff;
130 }
131 else if (!strcmp(key, "smaller"))
132 {
133 chosen.pdelta = 0x7fffffff;
134 search = SMALLER;
135 }
136 else if (!strcmp(key, "bigger"))
137 {
138 chosen.pdelta = 0x7fffffff;
139 search = BIGGER;
140 }
141 }
142 for (i = 0; i < count; i++)
143 {
144 if (fread(&byte, 1, 1, f) != 1) goto close_file;
145 w = byte;
146 if (w <= 0) w = 256;
147 if (fread(&byte, 1, 1, f) != 1) goto close_file;
148 h = byte;
149 if (h <= 0) h = 256;
150 if (fread(&byte, 1, 1, f) != 1) goto close_file;
151 cols = byte;
152 if (cols <= 0) cols = 256;
153 if (fread(&byte, 1, 1, f) != 1) goto close_file;
154 if (!read_ushort(f, &word)) goto close_file;
155 if (type == CURSOR) planes = word;
156 else hot_x = word;
157 if (!read_ushort(f, &word)) goto close_file;
158 if (type == CURSOR) bpp = word;
159 else hot_y = word;
160 if (!read_uint(f, &bmsize)) goto close_file;
161 if (!read_uint(f, &bmoffset)) goto close_file;
162 if ((bmsize <= 0) || (bmoffset <= 0) || (bmoffset >= fsize)) goto close_file;
163 if (search == BIGGEST)
164 {
165 pdelta = w * h;
166 if ((!have_choice) ||
167 ((pdelta >= chosen.pdelta) &&
168 (((bpp >= 3) && (bpp >= chosen.bpp)) ||
169 ((bpp < 3) && (cols >= chosen.cols)))))
170 {
171 have_choice = 1;
172 chosen.pdelta = pdelta;
173 chosen.w = w;
174 chosen.h = h;
175 chosen.cols = cols;
176 chosen.bpp = bpp;
177 chosen.planes = planes;
178 chosen.bmsize = bmsize;
179 chosen.bmoffset = bmoffset;
180 }
181 }
182 else
183 {
184 if (search == SMALLEST)
185 {
186 pdelta = w * h;
187 if ((!have_choice) ||
188 ((pdelta <= chosen.pdelta) &&
189 (((bpp >= 3) && (bpp >= chosen.bpp)) ||
190 ((bpp < 3) && (cols >= chosen.cols)))))
191 {
192 have_choice = 1;
193 chosen.pdelta = pdelta;
194 chosen.w = w;
195 chosen.h = h;
196 chosen.cols = cols;
197 chosen.bpp = bpp;
198 chosen.planes = planes;
199 chosen.bmsize = bmsize;
200 chosen.bmoffset = bmoffset;
201 }
202 }
203 else if (search == SMALLER)
204 {
205 pdelta = (wanted_w * wanted_h) - (w * h);
206 if ((!have_choice) ||
207 ((w <= wanted_w) && (h <= wanted_h) &&
208 (pdelta <= chosen.pdelta) &&
209 (((bpp >= 3) && (bpp >= chosen.bpp)) ||
210 ((bpp < 3) && (cols >= chosen.cols)))))
211 {
212 have_choice = 1;
213 if (pdelta < 0) pdelta = 0x7fffffff;
214 chosen.pdelta = pdelta;
215 chosen.w = w;
216 chosen.h = h;
217 chosen.cols = cols;
218 chosen.bpp = bpp;
219 chosen.planes = planes;
220 chosen.bmsize = bmsize;
221 chosen.bmoffset = bmoffset;
222 }
223 }
224 else if (search == BIGGER)
225 {
226 pdelta = (w * h) - (wanted_w * wanted_h);
227 if ((!have_choice) ||
228 ((w >= wanted_w) && (h >= wanted_h) &&
229 (pdelta <= chosen.pdelta) &&
230 (((bpp >= 3) && (bpp >= chosen.bpp)) ||
231 ((bpp < 3) && (cols >= chosen.cols)))))
232 {
233 have_choice = 1;
234 if (pdelta < 0) pdelta = 0x7fffffff;
235 chosen.pdelta = pdelta;
236 chosen.w = w;
237 chosen.h = h;
238 chosen.cols = cols;
239 chosen.bpp = bpp;
240 chosen.planes = planes;
241 chosen.bmsize = bmsize;
242 chosen.bmoffset = bmoffset;
243 }
244 }
245 }
246 }
247 if (chosen.bmoffset == 0) goto close_file;
248 if (fseek(f, chosen.bmoffset, SEEK_SET) != 0) goto close_file;
249
250 w = chosen.w;
251 h = chosen.h;
252 if ((w > 256) || (h > 256)) goto close_file;
253 if ((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE) ||
254 IMG_TOO_BIG(w, h))
255 {
256 if (IMG_TOO_BIG(w, h))
257 *error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
258 else
259 *error = EVAS_LOAD_ERROR_GENERIC;
260 goto close_file;
261 }
262
263 ie->w = w;
264 ie->h = h;
265 if (hasa) ie->flags.alpha = 1;
266
267 fclose(f);
268 *error = EVAS_LOAD_ERROR_NONE;
269 return EINA_TRUE;
270
271 close_file:
272 fclose(f);
273 return EINA_FALSE;
274}
275
276static Eina_Bool
277evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key, int *error)
278{
279 unsigned short word;
280 unsigned char byte;
281 unsigned int dword;
282 FILE *f;
283 int wanted_w = 0, wanted_h = 0, w, h, cols, i, planes = 0,
284 hot_x = 0, hot_y = 0, bpp = 0, pdelta, search = -1, have_choice = 0,
285 stride, pstride, j, right_way_up = 0, diff_size = 0, cols2;
286 unsigned int bmoffset, bmsize, bitcount, compression, imagesize, fsize,
287 colorsused, colorsimportant, *pal, *surface, *pix, none_zero_alpha = 0;
288 unsigned short reserved, type, count, planes2;
289 unsigned char *maskbuf, *pixbuf, *p;
290 struct {
291 int pdelta;
292 int w, h;
293 int cols;
294 int bpp, planes;
295 int hot_x, hot_y;
296 unsigned int bmoffset, bmsize;
297 } chosen = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
298
299 f = fopen(file, "rb");
300 if (!f)
301 {
302 *error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
303 return EINA_FALSE;
304 }
305
306 *error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
307 fseek(f, 0, SEEK_END);
308 fsize = ftell(f);
309 fseek(f, 0, SEEK_SET);
310 if (fsize < (6 + 16 + 40)) goto close_file;
311
312 // key:
313 // NULL == highest res
314 // biggest == highest res
315 // smallest == lowest res
316 //
317 // smaller == next size SMALLER than load opts WxH (if possible)
318 // bigger == next size BIGGER than load opts WxH (if possible)
319 // more ?
320
321 search = BIGGEST;
322 if ((ie->load_opts.w > 0) && (ie->load_opts.h > 0))
323 {
324 wanted_w = ie->load_opts.w;
325 wanted_h = ie->load_opts.h;
326 search = SMALLER;
327 }
328
329 if (!read_ushort(f, &reserved)) goto close_file;
330 if (!read_ushort(f, &type)) goto close_file;
331 if (!read_ushort(f, &count)) goto close_file;
332 if (!((reserved == 0) &&
333 ((type == ICON) || (type == CURSOR)) && (count > 0)))
334 goto close_file;
335 *error = EVAS_LOAD_ERROR_CORRUPT_FILE;
336
337 if (key)
338 {
339 if (!strcmp(key, "biggest"))
340 {
341 wanted_w = 0;
342 wanted_h = 0;
343 search = BIGGEST;
344 chosen.pdelta = 0;
345 }
346 else if (!strcmp(key, "smallest"))
347 {
348 wanted_w = 1;
349 wanted_h = 1;
350 search = SMALLEST;
351 chosen.pdelta = 0x7fffffff;
352 }
353 else if (!strcmp(key, "smaller"))
354 {
355 chosen.pdelta = 0x7fffffff;
356 search = SMALLER;
357 }
358 else if (!strcmp(key, "bigger"))
359 {
360 chosen.pdelta = 0x7fffffff;
361 search = BIGGER;
362 }
363 }
364 for (i = 0; i < count; i++)
365 {
366 if (fread(&byte, 1, 1, f) != 1) goto close_file;
367 w = byte;
368 if (w <= 0) w = 256;
369 if (fread(&byte, 1, 1, f) != 1) goto close_file;
370 h = byte;
371 if (h <= 0) h = 256;
372 if (fread(&byte, 1, 1, f) != 1) goto close_file;
373 cols = byte;
374 if (cols <= 0) cols = 256;
375 if (fread(&byte, 1, 1, f) != 1) goto close_file;
376 if (!read_ushort(f, &word)) goto close_file;
377 if (type == 1) planes = word;
378 else hot_x = word;
379 if (!read_ushort(f, &word)) goto close_file;
380 if (type == 1) bpp = word;
381 else hot_y = word;
382 if (!read_uint(f, &bmsize)) goto close_file;
383 if (!read_uint(f, &bmoffset)) goto close_file;
384 if ((bmsize <= 0) || (bmoffset <= 0) || (bmoffset >= fsize)) goto close_file;
385 if (search == BIGGEST)
386 {
387 pdelta = w * h;
388 if ((!have_choice) ||
389 ((pdelta >= chosen.pdelta) &&
390 (((bpp >= 3) && (bpp >= chosen.bpp)) ||
391 ((bpp < 3) && (cols >= chosen.cols)))))
392 {
393 have_choice = 1;
394 chosen.pdelta = pdelta;
395 chosen.w = w;
396 chosen.h = h;
397 chosen.cols = cols;
398 chosen.bpp = bpp;
399 chosen.planes = planes;
400 chosen.bmsize = bmsize;
401 chosen.bmoffset = bmoffset;
402 }
403 }
404 else
405 {
406 if (search == SMALLEST)
407 {
408 pdelta = w * h;
409 if ((!have_choice) ||
410 ((pdelta <= chosen.pdelta) &&
411 (((bpp >= 3) && (bpp >= chosen.bpp)) ||
412 ((bpp < 3) && (cols >= chosen.cols)))))
413 {
414 have_choice = 1;
415 chosen.pdelta = pdelta;
416 chosen.w = w;
417 chosen.h = h;
418 chosen.cols = cols;
419 chosen.bpp = bpp;
420 chosen.planes = planes;
421 chosen.bmsize = bmsize;
422 chosen.bmoffset = bmoffset;
423 }
424 }
425 else if (search == SMALLER)
426 {
427 pdelta = (wanted_w * wanted_h) - (w * h);
428 if ((!have_choice) ||
429 ((w <= wanted_w) && (h <= wanted_h) &&
430 (pdelta <= chosen.pdelta) &&
431 (((bpp >= 3) && (bpp >= chosen.bpp)) ||
432 ((bpp < 3) && (cols >= chosen.cols)))))
433 {
434 have_choice = 1;
435 if (pdelta < 0) pdelta = 0x7fffffff;
436 chosen.pdelta = pdelta;
437 chosen.w = w;
438 chosen.h = h;
439 chosen.cols = cols;
440 chosen.bpp = bpp;
441 chosen.planes = planes;
442 chosen.bmsize = bmsize;
443 chosen.bmoffset = bmoffset;
444 }
445 }
446 else if (search == BIGGER)
447 {
448 pdelta = (w * h) - (wanted_w * wanted_h);
449 if ((!have_choice) ||
450 ((w >= wanted_w) && (h >= wanted_h) &&
451 (pdelta <= chosen.pdelta) &&
452 (((bpp >= 3) && (bpp >= chosen.bpp)) ||
453 ((bpp < 3) && (cols >= chosen.cols)))))
454 {
455 have_choice = 1;
456 if (pdelta < 0) pdelta = 0x7fffffff;
457 chosen.pdelta = pdelta;
458 chosen.w = w;
459 chosen.h = h;
460 chosen.cols = cols;
461 chosen.bpp = bpp;
462 chosen.planes = planes;
463 chosen.bmsize = bmsize;
464 chosen.bmoffset = bmoffset;
465 }
466 }
467 }
468 }
469 if (chosen.bmoffset == 0) goto close_file;
470 if (fseek(f, chosen.bmoffset, SEEK_SET) != 0) goto close_file;
471
472 w = chosen.w;
473 h = chosen.h;
474 cols = chosen.cols;
475 bpp = chosen.bpp;
476 // changed since we loaded header?
477 if (((int)ie->w != w) || ((int)ie->h != h)) goto close_file;
478
479 // read bmp header time... let's do some checking
480 if (!read_uint(f, &dword)) goto close_file; // headersize - dont care
481 if (!read_uint(f, &dword)) goto close_file; // width
482 if (dword > 0)
483 {
484 if ((int)dword != w)
485 {
486 w = dword;
487 diff_size = 1;
488 }
489 }
490 if (!read_uint(f, &dword)) goto close_file; // height
491 if (dword > 0)
492 {
493 if ((int)dword != (h * 2))
494 {
495 h = dword / 2;
496 diff_size = 1;
497 }
498 }
499 if (diff_size)
500 {
501 ERR("Broken ICO file: %s - "
502 " Reporting size of %ix%i in index, but bitmap is %ix%i. "
503 " May be expanded or cropped.",
504 file, ie->w, ie->h, w, h);
505 }
506 if (!read_ushort(f, &word)) goto close_file; // planes
507 planes2 = word;
508 if (!read_ushort(f, &word)) goto close_file; // bitcount
509 bitcount = word;
510 if (!read_uint(f, &dword)) goto close_file; // compression
511 compression = dword;
512 if (!read_uint(f, &dword)) goto close_file; // imagesize
513 imagesize = dword;
514 if (!read_uint(f, &dword)) goto close_file; // z pixels per m
515 if (!read_uint(f, &dword)) goto close_file; // y pizels per m
516 if (!read_uint(f, &dword)) goto close_file; // colors used
517 colorsused = dword;
518 if (!read_uint(f, &dword)) goto close_file; // colors important
519 colorsimportant = dword;
520
521 evas_cache_image_surface_alloc(ie, ie->w, ie->h);
522 surface = evas_cache_image_pixels(ie);
523 if (!surface)
524 {
525 *error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
526 goto close_file;
527 }
528 memset(surface, 0, ie->w * ie->h * 4);
529
530 if (!((bitcount == 1) || (bitcount == 4) || (bitcount == 8) ||
531 (bitcount == 24) || (bitcount == 32)))
532 goto close_file;
533 if (bitcount <= 8)
534 {
535 cols2 = 1 << bitcount;
536 if (cols == 0) cols = cols2;
537 if (cols > cols2) cols = cols2;
538 if (cols > 256) cols = 256;
539 }
540 else
541 cols = 0;
542 if (bitcount > 8) cols = 0;
543
544 pal = alloca(256 * 4);
545 for (i = 0; i < cols; i++)
546 {
547 unsigned char a, r, g, b;
548
549 if (fread(&b, 1, 1, f) != 1) goto close_file;
550 if (fread(&g, 1, 1, f) != 1) goto close_file;
551 if (fread(&r, 1, 1, f) != 1) goto close_file;
552 if (fread(&a, 1, 1, f) != 1) goto close_file;
553 a = 0xff;
554 pal[i] = ARGB_JOIN(a, r, g, b);
555 }
556 stride = ((w + 31) / 32);
557 maskbuf = alloca(stride * h);
558 pixbuf = alloca(stride * 32 * 4); // more than enough
559 if (bitcount == 1)
560 {
561 pstride = stride * 4;
562 for (i = 0; i < h; i++)
563 {
564 pix = surface + (i * ie->w);
565 if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
566 if (fread(pixbuf, pstride, 1, f) != 1) goto close_file;
567 p = pixbuf;
568 if (i >= (int)ie->h) continue;
569 for (j = 0; j < w; j++)
570 {
571 if (j >= (int)ie->w) break;
572 if ((j & 0x7) == 0x0)
573 {
574 *pix = pal[*p >> 7];
575 }
576 else if ((j & 0x7) == 0x1)
577 {
578 *pix = pal[(*p >> 6) & 0x1];
579 }
580 else if ((j & 0x7) == 0x2)
581 {
582 *pix = pal[(*p >> 5) & 0x1];
583 }
584 else if ((j & 0x7) == 0x3)
585 {
586 *pix = pal[(*p >> 4) & 0x1];
587 }
588 else if ((j & 0x7) == 0x4)
589 {
590 *pix = pal[(*p >> 3) & 0x1];
591 }
592 else if ((j & 0x7) == 0x5)
593 {
594 *pix = pal[(*p >> 2) & 0x1];
595 }
596 else if ((j & 0x7) == 0x6)
597 {
598 *pix = pal[(*p >> 1) & 0x1];
599 }
600 else
601 {
602 *pix = pal[*p & 0x1];
603 p++;
604 }
605 pix++;
606 }
607 }
608 }
609 else if (bitcount == 4)
610 {
611 pstride = ((w + 7) / 8) * 4;
612 for (i = 0; i < h; i++)
613 {
614 pix = surface + (i * ie->w);
615 if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
616 if (fread(pixbuf, pstride, 1, f) != 1) goto close_file;
617 p = pixbuf;
618 if (i >= (int)ie->h) continue;
619 for (j = 0; j < w; j++)
620 {
621 if (j >= (int)ie->w) break;
622 if ((j & 0x1) == 0x1)
623 {
624 *pix = pal[*p & 0x0f];
625 p++;
626 }
627 else
628 {
629 *pix = pal[*p >> 4];
630 }
631 pix++;
632 }
633 }
634 }
635 else if (bitcount == 8)
636 {
637 pstride = ((w + 3) / 4) * 4;
638 for (i = 0; i < h; i++)
639 {
640 pix = surface + (i * ie->w);
641 if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
642 if (fread(pixbuf, pstride, 1, f) != 1) goto close_file;
643 p = pixbuf;
644 if (i >= (int)ie->h) continue;
645 for (j = 0; j < w; j++)
646 {
647 if (j >= (int)ie->w) break;
648 *pix = pal[*p];
649 p++;
650 pix++;
651 }
652 }
653 }
654 else if (bitcount == 24)
655 {
656 pstride = w * 3;
657 for (i = 0; i < h; i++)
658 {
659 pix = surface + (i * ie->w);
660 if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
661 if (fread(pixbuf, pstride, 1, f) != 1) goto close_file;
662 p = pixbuf;
663 if (i >= (int)ie->h) continue;
664 for (j = 0; j < w; j++)
665 {
666 unsigned char a, r, g, b;
667
668 if (j >= (int)ie->w) break;
669 b = p[0];
670 g = p[1];
671 r = p[2];
672 p += 3;
673 a = 0xff;
674 *pix = ARGB_JOIN(a, r, g, b);
675 pix++;
676 }
677 }
678 }
679 else if (bitcount == 32)
680 {
681 pstride = w * 4;
682 for (i = 0; i < h; i++)
683 {
684 pix = surface + (i * ie->w);
685 if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
686 if (fread(pixbuf, pstride, 1, f) != 1) goto close_file;
687 p = pixbuf;
688 if (i >= (int)ie->h) continue;
689 for (j = 0; j < w; j++)
690 {
691 unsigned char a, r, g, b;
692
693 if (j >= (int)ie->w) break;
694 b = p[0];
695 g = p[1];
696 r = p[2];
697 a = p[3];
698 p += 4;
699 if (a) none_zero_alpha = 1;
700 *pix = ARGB_JOIN(a, r, g, b);
701 pix++;
702 }
703 }
704 }
705 if (!none_zero_alpha)
706 {
707 if (fread(maskbuf, stride * 4 * h, 1, f) != 1) goto close_file;
708 // apply mask
709 pix = surface;
710 for (i = 0; i < h; i++)
711 {
712 unsigned char *m;
713
714 pix = surface + (i * ie->w);
715 if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
716 m = maskbuf + (stride * i * 4);
717 if (i >= (int)ie->h) continue;
718 for (j = 0; j < w; j++)
719 {
720 if (j >= (int)ie->w) break;
721 if (*m & (1 << (7 - (j & 0x7))))
722 A_VAL(pix) = 0x00;
723 else
724 A_VAL(pix) = 0xff;
725 if ((j & 0x7) == 0x7) m++;
726 pix++;
727 }
728 }
729 }
730
731 fclose(f);
732
733 evas_common_image_premul(ie);
734 *error = EVAS_LOAD_ERROR_NONE;
735 return EINA_TRUE;
736
737 close_file:
738 fclose(f);
739 return EINA_FALSE;
740}
741
742static int
743module_open(Evas_Module *em)
744{
745 if (!em) return 0;
746 em->functions = (void *)(&evas_image_load_ico_func);
747 return 1;
748}
749
750static void
751module_close(Evas_Module *em __UNUSED__)
752{
753}
754
755static Evas_Module_Api evas_modapi =
756{
757 EVAS_MODULE_API_VERSION,
758 "ico",
759 "none",
760 {
761 module_open,
762 module_close
763 }
764};
765
766EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_IMAGE_LOADER, image_loader, ico);
767
768#ifndef EVAS_STATIC_BUILD_ICO
769EVAS_EINA_MODULE_DEFINE(image_loader, ico);
770#endif
generated by cgit v1.1 at 2024-07-17 15:44:11 +0000