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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, | |
92bda632 TC |
107 | }; |
108 | ||
109 | /* in general these functions aren't called by Imager internally, but | |
110 | only via the pointers above, since faster macros that call the | |
111 | image vtable pointers are used. | |
112 | ||
113 | () are used around the function names to prevent macro replacement | |
114 | on the function names. | |
115 | */ | |
116 | ||
117 | /* | |
118 | =item i_ppix(im, x, y, color) | |
119 | ||
120 | =category Drawing | |
121 | ||
122 | Sets the pixel at (x,y) to I<color>. | |
123 | ||
124 | Returns 0 if the pixel was drawn, or -1 if not. | |
125 | ||
126 | Does no alpha blending, just copies the channels from the supplied | |
127 | color to the image. | |
128 | ||
129 | =cut | |
130 | */ | |
131 | ||
132 | int | |
97ac0a96 | 133 | (i_ppix)(i_img *im, int x, int y, const i_color *val) { |
92bda632 TC |
134 | return i_ppix(im, x, y, val); |
135 | } | |
136 | ||
137 | /* | |
138 | =item i_gpix(im, x, y, color) | |
139 | ||
140 | =category Drawing | |
141 | ||
142 | Retrieves the I<color> of the pixel (x,y). | |
143 | ||
144 | Returns 0 if the pixel was retrieved, or -1 if not. | |
145 | ||
146 | =cut | |
147 | */ | |
148 | ||
149 | int | |
150 | (i_gpix)(i_img *im,int x,int y,i_color *val) { | |
151 | return i_gpix(im, x, y, val); | |
152 | } | |
153 | ||
154 | /* | |
155 | =item i_ppixf(im, x, y, fcolor) | |
156 | ||
157 | =category Drawing | |
158 | ||
159 | Sets the pixel at (x,y) to the floating point color I<fcolor>. | |
160 | ||
161 | Returns 0 if the pixel was drawn, or -1 if not. | |
162 | ||
163 | Does no alpha blending, just copies the channels from the supplied | |
164 | color to the image. | |
165 | ||
166 | =cut | |
167 | */ | |
168 | int | |
97ac0a96 | 169 | (i_ppixf)(i_img *im, int x, int y, const i_fcolor *val) { |
92bda632 TC |
170 | return i_ppixf(im, x, y, val); |
171 | } | |
172 | ||
173 | /* | |
174 | =item i_gpixf(im, x, y, fcolor) | |
175 | ||
176 | =category Drawing | |
177 | ||
178 | Retrieves the color of the pixel (x,y) as a floating point color into | |
179 | I<fcolor>. | |
180 | ||
181 | Returns 0 if the pixel was retrieved, or -1 if not. | |
182 | ||
183 | =cut | |
184 | */ | |
185 | ||
186 | int | |
187 | (i_gpixf)(i_img *im,int x,int y,i_fcolor *val) { | |
188 | return i_gpixf(im, x, y, val); | |
189 | } | |
190 | ||
191 | /* | |
192 | =item i_plin(im, l, r, y, colors) | |
193 | ||
194 | =category Drawing | |
195 | ||
196 | Sets (r-l) pixels starting from (l,y) using (r-l) values from | |
197 | I<colors>. | |
198 | ||
199 | Returns the number of pixels set. | |
200 | ||
201 | =cut | |
202 | */ | |
203 | ||
204 | int | |
97ac0a96 | 205 | (i_plin)(i_img *im, int l, int r, int y, const i_color *vals) { |
92bda632 TC |
206 | return i_plin(im, l, r, y, vals); |
207 | } | |
208 | ||
209 | /* | |
210 | =item i_glin(im, l, r, y, colors) | |
211 | ||
212 | =category Drawing | |
213 | ||
214 | Retrieves (r-l) pixels starting from (l,y) into I<colors>. | |
215 | ||
216 | Returns the number of pixels retrieved. | |
217 | ||
218 | =cut | |
219 | */ | |
220 | ||
221 | int | |
222 | (i_glin)(i_img *im, int l, int r, int y, i_color *vals) { | |
223 | return i_glin(im, l, r, y, vals); | |
224 | } | |
225 | ||
226 | /* | |
227 | =item i_plinf(im, l, r, fcolors) | |
228 | ||
229 | =category Drawing | |
230 | ||
231 | Sets (r-l) pixels starting from (l,y) using (r-l) floating point | |
232 | colors from I<colors>. | |
233 | ||
234 | Returns the number of pixels set. | |
235 | ||
236 | =cut | |
237 | */ | |
238 | ||
239 | int | |
97ac0a96 | 240 | (i_plinf)(i_img *im, int l, int r, int y, const i_fcolor *vals) { |
92bda632 TC |
241 | return i_plinf(im, l, r, y, vals); |
242 | } | |
243 | ||
244 | /* | |
245 | =item i_glinf(im, l, r, y, colors) | |
246 | ||
247 | =category Drawing | |
248 | ||
249 | Retrieves (r-l) pixels starting from (l,y) into I<colors> as floating | |
250 | point colors. | |
251 | ||
252 | Returns the number of pixels retrieved. | |
253 | ||
254 | =cut | |
255 | */ | |
256 | ||
257 | int | |
258 | (i_glinf)(i_img *im, int l, int r, int y, i_fcolor *vals) { | |
259 | return i_glinf(im, l, r, y, vals); | |
260 | } | |
261 | ||
262 | /* | |
263 | =item i_gsamp(im, l, r, y, samp, chans, chan_count) | |
264 | ||
265 | =category Drawing | |
266 | ||
267 | Reads sample values from im for the horizontal line (l, y) to (r-1,y) | |
268 | for the channels specified by chans, an array of int with chan_count | |
269 | elements. | |
270 | ||
271 | If chans is NULL then the first chan_count channels are retrieved for | |
272 | each pixel. | |
273 | ||
274 | Returns the number of samples read (which should be (r-l) * | |
275 | chan_count) | |
276 | ||
277 | =cut | |
278 | */ | |
279 | int | |
280 | (i_gsamp)(i_img *im, int l, int r, int y, i_sample_t *samp, | |
281 | const int *chans, int chan_count) { | |
282 | return i_gsamp(im, l, r, y, samp, chans, chan_count); | |
283 | } | |
284 | ||
285 | /* | |
286 | =item i_gsampf(im, l, r, y, samp, chans, chan_count) | |
287 | ||
288 | =category Drawing | |
289 | ||
290 | Reads floating point sample values from im for the horizontal line (l, | |
291 | y) to (r-1,y) for the channels specified by chans, an array of int | |
292 | with chan_count elements. | |
293 | ||
294 | If chans is NULL then the first chan_count channels are retrieved for | |
295 | each pixel. | |
296 | ||
297 | Returns the number of samples read (which should be (r-l) * | |
298 | chan_count) | |
299 | ||
300 | =cut | |
301 | */ | |
302 | int | |
303 | (i_gsampf)(i_img *im, int l, int r, int y, i_fsample_t *samp, | |
304 | const int *chans, int chan_count) { | |
305 | return i_gsampf(im, l, r, y, samp, chans, chan_count); | |
306 | } | |
307 | ||
308 | /* | |
309 | =item i_gpal(im, x, r, y, indexes) | |
310 | ||
311 | =category Drawing | |
312 | ||
313 | Reads palette indexes for the horizontal line (x, y) to (r-1, y) into | |
314 | indexes. | |
315 | ||
316 | Returns the number of indexes read. | |
317 | ||
318 | Always returns 0 for direct color images. | |
319 | ||
320 | =cut | |
321 | */ | |
322 | int | |
323 | (i_gpal)(i_img *im, int x, int r, int y, i_palidx *vals) { | |
324 | return i_gpal(im, x, r, y, vals); | |
325 | } | |
326 | ||
327 | /* | |
328 | =item i_ppal(im, x, r, y, indexes) | |
329 | ||
330 | =category Drawing | |
331 | ||
332 | Writes palette indexes for the horizontal line (x, y) to (r-1, y) from | |
333 | indexes. | |
334 | ||
335 | Returns the number of indexes written. | |
336 | ||
337 | Always returns 0 for direct color images. | |
338 | ||
339 | =cut | |
340 | */ | |
341 | int | |
97ac0a96 | 342 | (i_ppal)(i_img *im, int x, int r, int y, const i_palidx *vals) { |
92bda632 TC |
343 | return i_ppal(im, x, r, y, vals); |
344 | } | |
345 | ||
346 | /* | |
347 | =item i_addcolors(im, colors, count) | |
348 | ||
349 | =category Paletted images | |
350 | ||
351 | Adds colors to the image's palette. | |
352 | ||
353 | On success returns the index of the lowest color added. | |
354 | ||
355 | On failure returns -1. | |
356 | ||
357 | Always fails for direct color images. | |
358 | ||
359 | =cut | |
360 | */ | |
361 | ||
362 | int | |
97ac0a96 | 363 | (i_addcolors)(i_img *im, const i_color *colors, int count) { |
92bda632 TC |
364 | return i_addcolors(im, colors, count); |
365 | } | |
366 | ||
367 | /* | |
368 | =item i_getcolors(im, index, colors, count) | |
369 | ||
370 | =category Paletted images | |
371 | ||
372 | Retrieves I<count> colors starting from I<index> in the image's | |
373 | palette. | |
374 | ||
375 | On success stores the colors into I<colors> and returns true. | |
376 | ||
377 | On failure returns false. | |
378 | ||
379 | Always fails for direct color images. | |
380 | ||
381 | Fails if there are less than I<index>+I<count> colors in the image's | |
382 | palette. | |
383 | ||
384 | =cut | |
385 | */ | |
386 | ||
387 | int | |
388 | (i_getcolors)(i_img *im, int i, i_color *colors, int count) { | |
389 | return i_getcolors(im, i, colors, count); | |
390 | } | |
391 | ||
392 | /* | |
393 | =item i_colorcount(im) | |
394 | ||
395 | =category Paletted images | |
396 | ||
397 | Returns the number of colors in the image's palette. | |
398 | ||
399 | Returns -1 for direct images. | |
400 | ||
401 | =cut | |
402 | */ | |
403 | ||
404 | int | |
405 | (i_colorcount)(i_img *im) { | |
406 | return i_colorcount(im); | |
407 | } | |
408 | ||
409 | /* | |
410 | =item i_maxcolors(im) | |
411 | ||
412 | =category Paletted images | |
413 | ||
414 | Returns the maximum number of colors the palette can hold for the | |
415 | image. | |
416 | ||
417 | Returns -1 for direct color images. | |
418 | ||
419 | =cut | |
420 | */ | |
421 | ||
422 | int | |
423 | (i_maxcolors)(i_img *im) { | |
424 | return i_maxcolors(im); | |
425 | } | |
426 | ||
427 | /* | |
428 | =item i_findcolor(im, color, &entry) | |
429 | ||
430 | =category Paletted images | |
431 | ||
432 | Searches the images palette for the given color. | |
433 | ||
434 | On success sets *I<entry> to the index of the color, and returns true. | |
435 | ||
436 | On failure returns false. | |
437 | ||
438 | Always fails on direct color images. | |
439 | ||
440 | =cut | |
441 | */ | |
442 | int | |
97ac0a96 | 443 | (i_findcolor)(i_img *im, const i_color *color, i_palidx *entry) { |
92bda632 TC |
444 | return i_findcolor(im, color, entry); |
445 | } | |
446 | ||
447 | /* | |
448 | =item i_setcolors(im, index, colors, count) | |
449 | ||
450 | =category Paletted images | |
451 | ||
452 | Sets I<count> colors starting from I<index> in the image's palette. | |
453 | ||
454 | On sucess returns true. | |
455 | ||
456 | On failure returns false. | |
457 | ||
458 | The image must have at least I<index>+I<count> colors in it's palette | |
459 | for this to succeed. | |
460 | ||
461 | Always fails on direct color images. | |
462 | ||
463 | =cut | |
464 | */ | |
465 | int | |
97ac0a96 | 466 | (i_setcolors)(i_img *im, int index, const i_color *colors, int count) { |
92bda632 TC |
467 | return i_setcolors(im, index, colors, count); |
468 | } | |
469 |