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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, | |
134 | i_render_linef | |
92bda632 TC |
135 | }; |
136 | ||
137 | /* in general these functions aren't called by Imager internally, but | |
138 | only via the pointers above, since faster macros that call the | |
139 | image vtable pointers are used. | |
140 | ||
141 | () are used around the function names to prevent macro replacement | |
142 | on the function names. | |
143 | */ | |
144 | ||
145 | /* | |
146 | =item i_ppix(im, x, y, color) | |
147 | ||
148 | =category Drawing | |
149 | ||
150 | Sets the pixel at (x,y) to I<color>. | |
151 | ||
152 | Returns 0 if the pixel was drawn, or -1 if not. | |
153 | ||
154 | Does no alpha blending, just copies the channels from the supplied | |
155 | color to the image. | |
156 | ||
157 | =cut | |
158 | */ | |
159 | ||
160 | int | |
97ac0a96 | 161 | (i_ppix)(i_img *im, int x, int y, const i_color *val) { |
92bda632 TC |
162 | return i_ppix(im, x, y, val); |
163 | } | |
164 | ||
165 | /* | |
5715f7c3 | 166 | =item i_gpix(im, C<x>, C<y>, C<color>) |
92bda632 TC |
167 | |
168 | =category Drawing | |
169 | ||
5715f7c3 | 170 | Retrieves the C<color> of the pixel (x,y). |
92bda632 TC |
171 | |
172 | Returns 0 if the pixel was retrieved, or -1 if not. | |
173 | ||
174 | =cut | |
175 | */ | |
176 | ||
177 | int | |
178 | (i_gpix)(i_img *im,int x,int y,i_color *val) { | |
179 | return i_gpix(im, x, y, val); | |
180 | } | |
181 | ||
182 | /* | |
5715f7c3 | 183 | =item i_ppixf(im, C<x>, C<y>, C<fcolor>) |
92bda632 TC |
184 | |
185 | =category Drawing | |
186 | ||
5715f7c3 | 187 | Sets the pixel at (C<x>,C<y>) to the floating point color C<fcolor>. |
92bda632 TC |
188 | |
189 | Returns 0 if the pixel was drawn, or -1 if not. | |
190 | ||
191 | Does no alpha blending, just copies the channels from the supplied | |
192 | color to the image. | |
193 | ||
194 | =cut | |
195 | */ | |
196 | int | |
97ac0a96 | 197 | (i_ppixf)(i_img *im, int x, int y, const i_fcolor *val) { |
92bda632 TC |
198 | return i_ppixf(im, x, y, val); |
199 | } | |
200 | ||
201 | /* | |
5715f7c3 | 202 | =item i_gpixf(im, C<x>, C<y>, C<fcolor>) |
92bda632 TC |
203 | |
204 | =category Drawing | |
205 | ||
206 | Retrieves the color of the pixel (x,y) as a floating point color into | |
5715f7c3 | 207 | C<fcolor>. |
92bda632 TC |
208 | |
209 | Returns 0 if the pixel was retrieved, or -1 if not. | |
210 | ||
211 | =cut | |
212 | */ | |
213 | ||
214 | int | |
215 | (i_gpixf)(i_img *im,int x,int y,i_fcolor *val) { | |
216 | return i_gpixf(im, x, y, val); | |
217 | } | |
218 | ||
219 | /* | |
220 | =item i_plin(im, l, r, y, colors) | |
221 | ||
222 | =category Drawing | |
223 | ||
224 | Sets (r-l) pixels starting from (l,y) using (r-l) values from | |
225 | I<colors>. | |
226 | ||
227 | Returns the number of pixels set. | |
228 | ||
229 | =cut | |
230 | */ | |
231 | ||
232 | int | |
97ac0a96 | 233 | (i_plin)(i_img *im, int l, int r, int y, const i_color *vals) { |
92bda632 TC |
234 | return i_plin(im, l, r, y, vals); |
235 | } | |
236 | ||
237 | /* | |
238 | =item i_glin(im, l, r, y, colors) | |
239 | ||
240 | =category Drawing | |
241 | ||
242 | Retrieves (r-l) pixels starting from (l,y) into I<colors>. | |
243 | ||
244 | Returns the number of pixels retrieved. | |
245 | ||
246 | =cut | |
247 | */ | |
248 | ||
249 | int | |
250 | (i_glin)(i_img *im, int l, int r, int y, i_color *vals) { | |
251 | return i_glin(im, l, r, y, vals); | |
252 | } | |
253 | ||
254 | /* | |
5715f7c3 | 255 | =item i_plinf(im, C<left>, C<right>, C<fcolors>) |
92bda632 TC |
256 | |
257 | =category Drawing | |
258 | ||
5715f7c3 TC |
259 | Sets (right-left) pixels starting from (left,y) using (right-left) |
260 | floating point colors from C<fcolors>. | |
92bda632 TC |
261 | |
262 | Returns the number of pixels set. | |
263 | ||
264 | =cut | |
265 | */ | |
266 | ||
267 | int | |
97ac0a96 | 268 | (i_plinf)(i_img *im, int l, int r, int y, const i_fcolor *vals) { |
92bda632 TC |
269 | return i_plinf(im, l, r, y, vals); |
270 | } | |
271 | ||
272 | /* | |
273 | =item i_glinf(im, l, r, y, colors) | |
274 | ||
275 | =category Drawing | |
276 | ||
277 | Retrieves (r-l) pixels starting from (l,y) into I<colors> as floating | |
278 | point colors. | |
279 | ||
280 | Returns the number of pixels retrieved. | |
281 | ||
282 | =cut | |
283 | */ | |
284 | ||
285 | int | |
286 | (i_glinf)(i_img *im, int l, int r, int y, i_fcolor *vals) { | |
287 | return i_glinf(im, l, r, y, vals); | |
288 | } | |
289 | ||
290 | /* | |
5715f7c3 | 291 | =item i_gsamp(im, left, right, y, samples, channels, channel_count) |
92bda632 TC |
292 | |
293 | =category Drawing | |
294 | ||
5715f7c3 TC |
295 | Reads sample values from C<im> for the horizontal line (left, y) to |
296 | (right-1,y) for the channels specified by C<channels>, an array of int | |
297 | with C<channel_count> elements. | |
92bda632 | 298 | |
5715f7c3 | 299 | If channels is NULL then the first channels_count channels are retrieved for |
92bda632 TC |
300 | each pixel. |
301 | ||
5715f7c3 TC |
302 | Returns the number of samples read (which should be (right-left) * |
303 | channel_count) | |
92bda632 TC |
304 | |
305 | =cut | |
306 | */ | |
307 | int | |
308 | (i_gsamp)(i_img *im, int l, int r, int y, i_sample_t *samp, | |
309 | const int *chans, int chan_count) { | |
310 | return i_gsamp(im, l, r, y, samp, chans, chan_count); | |
311 | } | |
312 | ||
313 | /* | |
5715f7c3 | 314 | =item i_gsampf(im, left, right, y, samples, channels, channel_count) |
92bda632 TC |
315 | |
316 | =category Drawing | |
317 | ||
5715f7c3 TC |
318 | Reads floating point sample values from C<im> for the horizontal line |
319 | (left, y) to (right-1,y) for the channels specified by C<channels>, an | |
320 | array of int with channel_count elements. | |
92bda632 | 321 | |
5715f7c3 TC |
322 | If C<channels> is NULL then the first C<channel_count> channels are |
323 | retrieved for each pixel. | |
92bda632 | 324 | |
5715f7c3 TC |
325 | Returns the number of samples read (which should be (C<right>-C<left>) |
326 | * C<channel_count>) | |
92bda632 TC |
327 | |
328 | =cut | |
329 | */ | |
330 | int | |
331 | (i_gsampf)(i_img *im, int l, int r, int y, i_fsample_t *samp, | |
332 | const int *chans, int chan_count) { | |
333 | return i_gsampf(im, l, r, y, samp, chans, chan_count); | |
334 | } | |
335 | ||
336 | /* | |
5715f7c3 | 337 | =item i_gpal(im, left, right, y, indexes) |
92bda632 TC |
338 | |
339 | =category Drawing | |
340 | ||
5715f7c3 TC |
341 | Reads palette indexes for the horizontal line (left, y) to (right-1, |
342 | y) into C<indexes>. | |
92bda632 TC |
343 | |
344 | Returns the number of indexes read. | |
345 | ||
346 | Always returns 0 for direct color images. | |
347 | ||
348 | =cut | |
349 | */ | |
350 | int | |
351 | (i_gpal)(i_img *im, int x, int r, int y, i_palidx *vals) { | |
352 | return i_gpal(im, x, r, y, vals); | |
353 | } | |
354 | ||
355 | /* | |
5715f7c3 | 356 | =item i_ppal(im, left, right, y, indexes) |
92bda632 TC |
357 | |
358 | =category Drawing | |
359 | ||
5715f7c3 TC |
360 | Writes palette indexes for the horizontal line (left, y) to (right-1, |
361 | y) from C<indexes>. | |
92bda632 TC |
362 | |
363 | Returns the number of indexes written. | |
364 | ||
365 | Always returns 0 for direct color images. | |
366 | ||
367 | =cut | |
368 | */ | |
369 | int | |
97ac0a96 | 370 | (i_ppal)(i_img *im, int x, int r, int y, const i_palidx *vals) { |
92bda632 TC |
371 | return i_ppal(im, x, r, y, vals); |
372 | } | |
373 | ||
374 | /* | |
375 | =item i_addcolors(im, colors, count) | |
376 | ||
377 | =category Paletted images | |
378 | ||
379 | Adds colors to the image's palette. | |
380 | ||
381 | On success returns the index of the lowest color added. | |
382 | ||
383 | On failure returns -1. | |
384 | ||
385 | Always fails for direct color images. | |
386 | ||
387 | =cut | |
388 | */ | |
389 | ||
390 | int | |
97ac0a96 | 391 | (i_addcolors)(i_img *im, const i_color *colors, int count) { |
92bda632 TC |
392 | return i_addcolors(im, colors, count); |
393 | } | |
394 | ||
395 | /* | |
396 | =item i_getcolors(im, index, colors, count) | |
397 | ||
398 | =category Paletted images | |
399 | ||
400 | Retrieves I<count> colors starting from I<index> in the image's | |
401 | palette. | |
402 | ||
403 | On success stores the colors into I<colors> and returns true. | |
404 | ||
405 | On failure returns false. | |
406 | ||
407 | Always fails for direct color images. | |
408 | ||
409 | Fails if there are less than I<index>+I<count> colors in the image's | |
410 | palette. | |
411 | ||
412 | =cut | |
413 | */ | |
414 | ||
415 | int | |
416 | (i_getcolors)(i_img *im, int i, i_color *colors, int count) { | |
417 | return i_getcolors(im, i, colors, count); | |
418 | } | |
419 | ||
420 | /* | |
421 | =item i_colorcount(im) | |
422 | ||
423 | =category Paletted images | |
424 | ||
425 | Returns the number of colors in the image's palette. | |
426 | ||
427 | Returns -1 for direct images. | |
428 | ||
429 | =cut | |
430 | */ | |
431 | ||
432 | int | |
433 | (i_colorcount)(i_img *im) { | |
434 | return i_colorcount(im); | |
435 | } | |
436 | ||
437 | /* | |
438 | =item i_maxcolors(im) | |
439 | ||
440 | =category Paletted images | |
441 | ||
442 | Returns the maximum number of colors the palette can hold for the | |
443 | image. | |
444 | ||
445 | Returns -1 for direct color images. | |
446 | ||
447 | =cut | |
448 | */ | |
449 | ||
450 | int | |
451 | (i_maxcolors)(i_img *im) { | |
452 | return i_maxcolors(im); | |
453 | } | |
454 | ||
455 | /* | |
456 | =item i_findcolor(im, color, &entry) | |
457 | ||
458 | =category Paletted images | |
459 | ||
460 | Searches the images palette for the given color. | |
461 | ||
462 | On success sets *I<entry> to the index of the color, and returns true. | |
463 | ||
464 | On failure returns false. | |
465 | ||
466 | Always fails on direct color images. | |
467 | ||
468 | =cut | |
469 | */ | |
470 | int | |
97ac0a96 | 471 | (i_findcolor)(i_img *im, const i_color *color, i_palidx *entry) { |
92bda632 TC |
472 | return i_findcolor(im, color, entry); |
473 | } | |
474 | ||
475 | /* | |
476 | =item i_setcolors(im, index, colors, count) | |
477 | ||
478 | =category Paletted images | |
479 | ||
480 | Sets I<count> colors starting from I<index> in the image's palette. | |
481 | ||
5715f7c3 | 482 | On success returns true. |
92bda632 TC |
483 | |
484 | On failure returns false. | |
485 | ||
486 | The image must have at least I<index>+I<count> colors in it's palette | |
487 | for this to succeed. | |
488 | ||
489 | Always fails on direct color images. | |
490 | ||
491 | =cut | |
492 | */ | |
493 | int | |
97ac0a96 | 494 | (i_setcolors)(i_img *im, int index, const i_color *colors, int count) { |
92bda632 TC |
495 | return i_setcolors(im, index, colors, count); |
496 | } | |
497 |