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