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92bda632 TC |
1 | #include "imexttypes.h" |
2 | #include "imager.h" | |
50c75381 | 3 | #include "imio.h" |
92bda632 TC |
4 | |
5 | /* | |
6 | DON'T ADD CASTS TO THESE | |
7 | */ | |
8 | im_ext_funcs imager_function_table = | |
9 | { | |
d1f5892c TC |
10 | IMAGER_API_VERSION, |
11 | IMAGER_API_LEVEL, | |
12 | ||
92bda632 TC |
13 | mymalloc, |
14 | myfree, | |
15 | myrealloc, | |
16 | ||
e310e5f9 TC |
17 | mymalloc_file_line, |
18 | myfree_file_line, | |
19 | myrealloc_file_line, | |
20 | ||
92bda632 TC |
21 | i_img_8_new, |
22 | i_img_16_new, | |
23 | i_img_double_new, | |
24 | i_img_pal_new, | |
25 | i_img_destroy, | |
26 | i_sametype, | |
27 | i_sametype_chans, | |
28 | i_img_info, | |
29 | ||
30 | i_ppix, | |
31 | i_gpix, | |
32 | i_ppixf, | |
33 | i_gpixf, | |
34 | i_plin, | |
35 | i_glin, | |
36 | i_plinf, | |
37 | i_glinf, | |
38 | i_gsamp, | |
39 | i_gsampf, | |
40 | i_gpal, | |
41 | i_ppal, | |
42 | i_addcolors, | |
43 | i_getcolors, | |
44 | i_colorcount, | |
45 | i_maxcolors, | |
46 | i_findcolor, | |
47 | i_setcolors, | |
48 | ||
49 | i_new_fill_solid, | |
50 | i_new_fill_solidf, | |
51 | i_new_fill_hatch, | |
52 | i_new_fill_hatchf, | |
53 | i_new_fill_image, | |
54 | i_new_fill_fount, | |
55 | i_fill_destroy, | |
56 | ||
57 | i_quant_makemap, | |
58 | i_quant_translate, | |
59 | i_quant_transparent, | |
60 | ||
61 | i_clear_error, | |
62 | i_push_error, | |
63 | i_push_errorf, | |
64 | i_push_errorvf, | |
65 | ||
66 | i_tags_new, | |
67 | i_tags_set, | |
68 | i_tags_setn, | |
69 | i_tags_destroy, | |
70 | i_tags_find, | |
71 | i_tags_findn, | |
72 | i_tags_delete, | |
73 | i_tags_delbyname, | |
74 | i_tags_delbycode, | |
75 | i_tags_get_float, | |
76 | i_tags_set_float, | |
77 | i_tags_set_float2, | |
78 | i_tags_get_int, | |
79 | i_tags_get_string, | |
80 | i_tags_get_color, | |
81 | i_tags_set_color, | |
82 | ||
83 | i_box, | |
84 | i_box_filled, | |
85 | i_box_cfill, | |
86 | i_line, | |
87 | i_line_aa, | |
88 | i_arc, | |
89 | i_arc_aa, | |
90 | i_arc_cfill, | |
91 | i_arc_aa_cfill, | |
92 | i_circle_aa, | |
93 | i_flood_fill, | |
94 | i_flood_cfill, | |
95 | ||
96 | i_copyto, | |
97 | i_copyto_trans, | |
98 | i_copy, | |
99 | i_rubthru, | |
2b405c9e TC |
100 | |
101 | /* IMAGER_API_LEVEL 2 functions */ | |
102 | i_set_image_file_limits, | |
103 | i_get_image_file_limits, | |
104 | i_int_check_image_file_limits, | |
3efb0915 TC |
105 | |
106 | i_flood_fill_border, | |
107 | i_flood_cfill_border, | |
d5477d3d TC |
108 | |
109 | /* IMAGER_API_LEVEL 3 functions */ | |
110 | i_img_setmask, | |
111 | i_img_getmask, | |
112 | i_img_getchannels, | |
113 | i_img_get_width, | |
114 | i_img_get_height, | |
115 | i_lhead, | |
bd8052a6 TC |
116 | i_loog, |
117 | ||
118 | /* IMAGER_API_LEVEL 4 functions */ | |
119 | i_img_alloc, | |
120 | i_img_init, | |
e5ee047b TC |
121 | |
122 | /* IMAGER_API_LEVEL 5 functions */ | |
797a9f9c TC |
123 | i_img_is_monochrome, |
124 | i_gsamp_bg, | |
125 | i_gsampf_bg, | |
126 | i_get_file_background, | |
718b8c97 | 127 | i_get_file_backgroundf, |
50c75381 TC |
128 | i_utf8_advance, |
129 | i_render_new, | |
130 | i_render_delete, | |
131 | i_render_color, | |
132 | i_render_fill, | |
133 | i_render_line, | |
6d5c85a2 TC |
134 | i_render_linef, |
135 | ||
136 | /* level 6 */ | |
137 | i_io_getc_imp, | |
138 | i_io_peekc_imp, | |
139 | i_io_peekn, | |
140 | i_io_putc_imp, | |
141 | i_io_read, | |
142 | i_io_write, | |
143 | i_io_seek, | |
144 | i_io_flush, | |
145 | i_io_close, | |
146 | i_io_set_buffered, | |
147 | i_io_gets, | |
148 | io_new_fd, | |
149 | io_new_bufchain, | |
150 | io_new_buffer, | |
151 | io_new_cb, | |
152 | io_slurp, | |
153 | io_glue_destroy | |
92bda632 TC |
154 | }; |
155 | ||
156 | /* in general these functions aren't called by Imager internally, but | |
157 | only via the pointers above, since faster macros that call the | |
158 | image vtable pointers are used. | |
159 | ||
160 | () are used around the function names to prevent macro replacement | |
161 | on the function names. | |
162 | */ | |
163 | ||
164 | /* | |
165 | =item i_ppix(im, x, y, color) | |
166 | ||
167 | =category Drawing | |
168 | ||
169 | Sets the pixel at (x,y) to I<color>. | |
170 | ||
171 | Returns 0 if the pixel was drawn, or -1 if not. | |
172 | ||
173 | Does no alpha blending, just copies the channels from the supplied | |
174 | color to the image. | |
175 | ||
176 | =cut | |
177 | */ | |
178 | ||
179 | int | |
8d14daab | 180 | (i_ppix)(i_img *im, i_img_dim x, i_img_dim y, const i_color *val) { |
92bda632 TC |
181 | return i_ppix(im, x, y, val); |
182 | } | |
183 | ||
184 | /* | |
5715f7c3 | 185 | =item i_gpix(im, C<x>, C<y>, C<color>) |
92bda632 TC |
186 | |
187 | =category Drawing | |
188 | ||
5715f7c3 | 189 | Retrieves the C<color> of the pixel (x,y). |
92bda632 TC |
190 | |
191 | Returns 0 if the pixel was retrieved, or -1 if not. | |
192 | ||
193 | =cut | |
194 | */ | |
195 | ||
196 | int | |
8d14daab | 197 | (i_gpix)(i_img *im,i_img_dim x,i_img_dim y,i_color *val) { |
92bda632 TC |
198 | return i_gpix(im, x, y, val); |
199 | } | |
200 | ||
201 | /* | |
5715f7c3 | 202 | =item i_ppixf(im, C<x>, C<y>, C<fcolor>) |
92bda632 TC |
203 | |
204 | =category Drawing | |
205 | ||
5715f7c3 | 206 | Sets the pixel at (C<x>,C<y>) to the floating point color C<fcolor>. |
92bda632 TC |
207 | |
208 | Returns 0 if the pixel was drawn, or -1 if not. | |
209 | ||
210 | Does no alpha blending, just copies the channels from the supplied | |
211 | color to the image. | |
212 | ||
213 | =cut | |
214 | */ | |
215 | int | |
8d14daab | 216 | (i_ppixf)(i_img *im, i_img_dim x, i_img_dim y, const i_fcolor *val) { |
92bda632 TC |
217 | return i_ppixf(im, x, y, val); |
218 | } | |
219 | ||
220 | /* | |
5715f7c3 | 221 | =item i_gpixf(im, C<x>, C<y>, C<fcolor>) |
92bda632 TC |
222 | |
223 | =category Drawing | |
224 | ||
225 | Retrieves the color of the pixel (x,y) as a floating point color into | |
5715f7c3 | 226 | C<fcolor>. |
92bda632 TC |
227 | |
228 | Returns 0 if the pixel was retrieved, or -1 if not. | |
229 | ||
230 | =cut | |
231 | */ | |
232 | ||
233 | int | |
8d14daab | 234 | (i_gpixf)(i_img *im,i_img_dim x,i_img_dim y,i_fcolor *val) { |
92bda632 TC |
235 | return i_gpixf(im, x, y, val); |
236 | } | |
237 | ||
238 | /* | |
239 | =item i_plin(im, l, r, y, colors) | |
240 | ||
241 | =category Drawing | |
242 | ||
243 | Sets (r-l) pixels starting from (l,y) using (r-l) values from | |
244 | I<colors>. | |
245 | ||
246 | Returns the number of pixels set. | |
247 | ||
248 | =cut | |
249 | */ | |
250 | ||
8d14daab TC |
251 | i_img_dim |
252 | (i_plin)(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_color *vals) { | |
92bda632 TC |
253 | return i_plin(im, l, r, y, vals); |
254 | } | |
255 | ||
256 | /* | |
257 | =item i_glin(im, l, r, y, colors) | |
258 | ||
259 | =category Drawing | |
260 | ||
261 | Retrieves (r-l) pixels starting from (l,y) into I<colors>. | |
262 | ||
263 | Returns the number of pixels retrieved. | |
264 | ||
265 | =cut | |
266 | */ | |
267 | ||
8d14daab TC |
268 | i_img_dim |
269 | (i_glin)(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, i_color *vals) { | |
92bda632 TC |
270 | return i_glin(im, l, r, y, vals); |
271 | } | |
272 | ||
273 | /* | |
5715f7c3 | 274 | =item i_plinf(im, C<left>, C<right>, C<fcolors>) |
92bda632 TC |
275 | |
276 | =category Drawing | |
277 | ||
5715f7c3 TC |
278 | Sets (right-left) pixels starting from (left,y) using (right-left) |
279 | floating point colors from C<fcolors>. | |
92bda632 TC |
280 | |
281 | Returns the number of pixels set. | |
282 | ||
283 | =cut | |
284 | */ | |
285 | ||
8d14daab TC |
286 | i_img_dim |
287 | (i_plinf)(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_fcolor *vals) { | |
92bda632 TC |
288 | return i_plinf(im, l, r, y, vals); |
289 | } | |
290 | ||
291 | /* | |
292 | =item i_glinf(im, l, r, y, colors) | |
293 | ||
294 | =category Drawing | |
295 | ||
296 | Retrieves (r-l) pixels starting from (l,y) into I<colors> as floating | |
297 | point colors. | |
298 | ||
299 | Returns the number of pixels retrieved. | |
300 | ||
301 | =cut | |
302 | */ | |
303 | ||
8d14daab TC |
304 | i_img_dim |
305 | (i_glinf)(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, i_fcolor *vals) { | |
92bda632 TC |
306 | return i_glinf(im, l, r, y, vals); |
307 | } | |
308 | ||
309 | /* | |
5715f7c3 | 310 | =item i_gsamp(im, left, right, y, samples, channels, channel_count) |
92bda632 TC |
311 | |
312 | =category Drawing | |
313 | ||
5715f7c3 TC |
314 | Reads sample values from C<im> for the horizontal line (left, y) to |
315 | (right-1,y) for the channels specified by C<channels>, an array of int | |
316 | with C<channel_count> elements. | |
92bda632 | 317 | |
5715f7c3 | 318 | If channels is NULL then the first channels_count channels are retrieved for |
92bda632 TC |
319 | each pixel. |
320 | ||
5715f7c3 TC |
321 | Returns the number of samples read (which should be (right-left) * |
322 | channel_count) | |
92bda632 TC |
323 | |
324 | =cut | |
325 | */ | |
8d14daab TC |
326 | i_img_dim |
327 | (i_gsamp)(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, i_sample_t *samp, | |
92bda632 TC |
328 | const int *chans, int chan_count) { |
329 | return i_gsamp(im, l, r, y, samp, chans, chan_count); | |
330 | } | |
331 | ||
332 | /* | |
5715f7c3 | 333 | =item i_gsampf(im, left, right, y, samples, channels, channel_count) |
92bda632 TC |
334 | |
335 | =category Drawing | |
336 | ||
5715f7c3 TC |
337 | Reads floating point sample values from C<im> for the horizontal line |
338 | (left, y) to (right-1,y) for the channels specified by C<channels>, an | |
339 | array of int with channel_count elements. | |
92bda632 | 340 | |
5715f7c3 TC |
341 | If C<channels> is NULL then the first C<channel_count> channels are |
342 | retrieved for each pixel. | |
92bda632 | 343 | |
5715f7c3 TC |
344 | Returns the number of samples read (which should be (C<right>-C<left>) |
345 | * C<channel_count>) | |
92bda632 TC |
346 | |
347 | =cut | |
348 | */ | |
8d14daab TC |
349 | i_img_dim |
350 | (i_gsampf)(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, i_fsample_t *samp, | |
92bda632 TC |
351 | const int *chans, int chan_count) { |
352 | return i_gsampf(im, l, r, y, samp, chans, chan_count); | |
353 | } | |
354 | ||
355 | /* | |
5715f7c3 | 356 | =item i_gpal(im, left, right, y, indexes) |
92bda632 TC |
357 | |
358 | =category Drawing | |
359 | ||
5715f7c3 TC |
360 | Reads palette indexes for the horizontal line (left, y) to (right-1, |
361 | y) into C<indexes>. | |
92bda632 TC |
362 | |
363 | Returns the number of indexes read. | |
364 | ||
365 | Always returns 0 for direct color images. | |
366 | ||
367 | =cut | |
368 | */ | |
8d14daab TC |
369 | i_img_dim |
370 | (i_gpal)(i_img *im, i_img_dim x, i_img_dim r, i_img_dim y, i_palidx *vals) { | |
92bda632 TC |
371 | return i_gpal(im, x, r, y, vals); |
372 | } | |
373 | ||
374 | /* | |
5715f7c3 | 375 | =item i_ppal(im, left, right, y, indexes) |
92bda632 TC |
376 | |
377 | =category Drawing | |
378 | ||
5715f7c3 TC |
379 | Writes palette indexes for the horizontal line (left, y) to (right-1, |
380 | y) from C<indexes>. | |
92bda632 TC |
381 | |
382 | Returns the number of indexes written. | |
383 | ||
384 | Always returns 0 for direct color images. | |
385 | ||
386 | =cut | |
387 | */ | |
8d14daab TC |
388 | i_img_dim |
389 | (i_ppal)(i_img *im, i_img_dim x, i_img_dim r, i_img_dim y, const i_palidx *vals) { | |
92bda632 TC |
390 | return i_ppal(im, x, r, y, vals); |
391 | } | |
392 | ||
393 | /* | |
394 | =item i_addcolors(im, colors, count) | |
395 | ||
396 | =category Paletted images | |
397 | ||
398 | Adds colors to the image's palette. | |
399 | ||
400 | On success returns the index of the lowest color added. | |
401 | ||
402 | On failure returns -1. | |
403 | ||
404 | Always fails for direct color images. | |
405 | ||
406 | =cut | |
407 | */ | |
408 | ||
409 | int | |
97ac0a96 | 410 | (i_addcolors)(i_img *im, const i_color *colors, int count) { |
92bda632 TC |
411 | return i_addcolors(im, colors, count); |
412 | } | |
413 | ||
414 | /* | |
415 | =item i_getcolors(im, index, colors, count) | |
416 | ||
417 | =category Paletted images | |
418 | ||
419 | Retrieves I<count> colors starting from I<index> in the image's | |
420 | palette. | |
421 | ||
422 | On success stores the colors into I<colors> and returns true. | |
423 | ||
424 | On failure returns false. | |
425 | ||
426 | Always fails for direct color images. | |
427 | ||
428 | Fails if there are less than I<index>+I<count> colors in the image's | |
429 | palette. | |
430 | ||
431 | =cut | |
432 | */ | |
433 | ||
434 | int | |
435 | (i_getcolors)(i_img *im, int i, i_color *colors, int count) { | |
436 | return i_getcolors(im, i, colors, count); | |
437 | } | |
438 | ||
439 | /* | |
440 | =item i_colorcount(im) | |
441 | ||
442 | =category Paletted images | |
443 | ||
444 | Returns the number of colors in the image's palette. | |
445 | ||
446 | Returns -1 for direct images. | |
447 | ||
448 | =cut | |
449 | */ | |
450 | ||
451 | int | |
452 | (i_colorcount)(i_img *im) { | |
453 | return i_colorcount(im); | |
454 | } | |
455 | ||
456 | /* | |
457 | =item i_maxcolors(im) | |
458 | ||
459 | =category Paletted images | |
460 | ||
461 | Returns the maximum number of colors the palette can hold for the | |
462 | image. | |
463 | ||
464 | Returns -1 for direct color images. | |
465 | ||
466 | =cut | |
467 | */ | |
468 | ||
469 | int | |
470 | (i_maxcolors)(i_img *im) { | |
471 | return i_maxcolors(im); | |
472 | } | |
473 | ||
474 | /* | |
475 | =item i_findcolor(im, color, &entry) | |
476 | ||
477 | =category Paletted images | |
478 | ||
479 | Searches the images palette for the given color. | |
480 | ||
481 | On success sets *I<entry> to the index of the color, and returns true. | |
482 | ||
483 | On failure returns false. | |
484 | ||
485 | Always fails on direct color images. | |
486 | ||
487 | =cut | |
488 | */ | |
489 | int | |
97ac0a96 | 490 | (i_findcolor)(i_img *im, const i_color *color, i_palidx *entry) { |
92bda632 TC |
491 | return i_findcolor(im, color, entry); |
492 | } | |
493 | ||
494 | /* | |
495 | =item i_setcolors(im, index, colors, count) | |
496 | ||
497 | =category Paletted images | |
498 | ||
499 | Sets I<count> colors starting from I<index> in the image's palette. | |
500 | ||
5715f7c3 | 501 | On success returns true. |
92bda632 TC |
502 | |
503 | On failure returns false. | |
504 | ||
505 | The image must have at least I<index>+I<count> colors in it's palette | |
506 | for this to succeed. | |
507 | ||
508 | Always fails on direct color images. | |
509 | ||
510 | =cut | |
511 | */ | |
512 | int | |
97ac0a96 | 513 | (i_setcolors)(i_img *im, int index, const i_color *colors, int count) { |
92bda632 TC |
514 | return i_setcolors(im, index, colors, count); |
515 | } | |
516 |