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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, | |
92bda632 TC |
104 | }; |
105 | ||
106 | /* in general these functions aren't called by Imager internally, but | |
107 | only via the pointers above, since faster macros that call the | |
108 | image vtable pointers are used. | |
109 | ||
110 | () are used around the function names to prevent macro replacement | |
111 | on the function names. | |
112 | */ | |
113 | ||
114 | /* | |
115 | =item i_ppix(im, x, y, color) | |
116 | ||
117 | =category Drawing | |
118 | ||
119 | Sets the pixel at (x,y) to I<color>. | |
120 | ||
121 | Returns 0 if the pixel was drawn, or -1 if not. | |
122 | ||
123 | Does no alpha blending, just copies the channels from the supplied | |
124 | color to the image. | |
125 | ||
126 | =cut | |
127 | */ | |
128 | ||
129 | int | |
97ac0a96 | 130 | (i_ppix)(i_img *im, int x, int y, const i_color *val) { |
92bda632 TC |
131 | return i_ppix(im, x, y, val); |
132 | } | |
133 | ||
134 | /* | |
135 | =item i_gpix(im, x, y, color) | |
136 | ||
137 | =category Drawing | |
138 | ||
139 | Retrieves the I<color> of the pixel (x,y). | |
140 | ||
141 | Returns 0 if the pixel was retrieved, or -1 if not. | |
142 | ||
143 | =cut | |
144 | */ | |
145 | ||
146 | int | |
147 | (i_gpix)(i_img *im,int x,int y,i_color *val) { | |
148 | return i_gpix(im, x, y, val); | |
149 | } | |
150 | ||
151 | /* | |
152 | =item i_ppixf(im, x, y, fcolor) | |
153 | ||
154 | =category Drawing | |
155 | ||
156 | Sets the pixel at (x,y) to the floating point color I<fcolor>. | |
157 | ||
158 | Returns 0 if the pixel was drawn, or -1 if not. | |
159 | ||
160 | Does no alpha blending, just copies the channels from the supplied | |
161 | color to the image. | |
162 | ||
163 | =cut | |
164 | */ | |
165 | int | |
97ac0a96 | 166 | (i_ppixf)(i_img *im, int x, int y, const i_fcolor *val) { |
92bda632 TC |
167 | return i_ppixf(im, x, y, val); |
168 | } | |
169 | ||
170 | /* | |
171 | =item i_gpixf(im, x, y, fcolor) | |
172 | ||
173 | =category Drawing | |
174 | ||
175 | Retrieves the color of the pixel (x,y) as a floating point color into | |
176 | I<fcolor>. | |
177 | ||
178 | Returns 0 if the pixel was retrieved, or -1 if not. | |
179 | ||
180 | =cut | |
181 | */ | |
182 | ||
183 | int | |
184 | (i_gpixf)(i_img *im,int x,int y,i_fcolor *val) { | |
185 | return i_gpixf(im, x, y, val); | |
186 | } | |
187 | ||
188 | /* | |
189 | =item i_plin(im, l, r, y, colors) | |
190 | ||
191 | =category Drawing | |
192 | ||
193 | Sets (r-l) pixels starting from (l,y) using (r-l) values from | |
194 | I<colors>. | |
195 | ||
196 | Returns the number of pixels set. | |
197 | ||
198 | =cut | |
199 | */ | |
200 | ||
201 | int | |
97ac0a96 | 202 | (i_plin)(i_img *im, int l, int r, int y, const i_color *vals) { |
92bda632 TC |
203 | return i_plin(im, l, r, y, vals); |
204 | } | |
205 | ||
206 | /* | |
207 | =item i_glin(im, l, r, y, colors) | |
208 | ||
209 | =category Drawing | |
210 | ||
211 | Retrieves (r-l) pixels starting from (l,y) into I<colors>. | |
212 | ||
213 | Returns the number of pixels retrieved. | |
214 | ||
215 | =cut | |
216 | */ | |
217 | ||
218 | int | |
219 | (i_glin)(i_img *im, int l, int r, int y, i_color *vals) { | |
220 | return i_glin(im, l, r, y, vals); | |
221 | } | |
222 | ||
223 | /* | |
224 | =item i_plinf(im, l, r, fcolors) | |
225 | ||
226 | =category Drawing | |
227 | ||
228 | Sets (r-l) pixels starting from (l,y) using (r-l) floating point | |
229 | colors from I<colors>. | |
230 | ||
231 | Returns the number of pixels set. | |
232 | ||
233 | =cut | |
234 | */ | |
235 | ||
236 | int | |
97ac0a96 | 237 | (i_plinf)(i_img *im, int l, int r, int y, const i_fcolor *vals) { |
92bda632 TC |
238 | return i_plinf(im, l, r, y, vals); |
239 | } | |
240 | ||
241 | /* | |
242 | =item i_glinf(im, l, r, y, colors) | |
243 | ||
244 | =category Drawing | |
245 | ||
246 | Retrieves (r-l) pixels starting from (l,y) into I<colors> as floating | |
247 | point colors. | |
248 | ||
249 | Returns the number of pixels retrieved. | |
250 | ||
251 | =cut | |
252 | */ | |
253 | ||
254 | int | |
255 | (i_glinf)(i_img *im, int l, int r, int y, i_fcolor *vals) { | |
256 | return i_glinf(im, l, r, y, vals); | |
257 | } | |
258 | ||
259 | /* | |
260 | =item i_gsamp(im, l, r, y, samp, chans, chan_count) | |
261 | ||
262 | =category Drawing | |
263 | ||
264 | Reads sample values from im for the horizontal line (l, y) to (r-1,y) | |
265 | for the channels specified by chans, an array of int with chan_count | |
266 | elements. | |
267 | ||
268 | If chans is NULL then the first chan_count channels are retrieved for | |
269 | each pixel. | |
270 | ||
271 | Returns the number of samples read (which should be (r-l) * | |
272 | chan_count) | |
273 | ||
274 | =cut | |
275 | */ | |
276 | int | |
277 | (i_gsamp)(i_img *im, int l, int r, int y, i_sample_t *samp, | |
278 | const int *chans, int chan_count) { | |
279 | return i_gsamp(im, l, r, y, samp, chans, chan_count); | |
280 | } | |
281 | ||
282 | /* | |
283 | =item i_gsampf(im, l, r, y, samp, chans, chan_count) | |
284 | ||
285 | =category Drawing | |
286 | ||
287 | Reads floating point sample values from im for the horizontal line (l, | |
288 | y) to (r-1,y) for the channels specified by chans, an array of int | |
289 | with chan_count elements. | |
290 | ||
291 | If chans is NULL then the first chan_count channels are retrieved for | |
292 | each pixel. | |
293 | ||
294 | Returns the number of samples read (which should be (r-l) * | |
295 | chan_count) | |
296 | ||
297 | =cut | |
298 | */ | |
299 | int | |
300 | (i_gsampf)(i_img *im, int l, int r, int y, i_fsample_t *samp, | |
301 | const int *chans, int chan_count) { | |
302 | return i_gsampf(im, l, r, y, samp, chans, chan_count); | |
303 | } | |
304 | ||
305 | /* | |
306 | =item i_gpal(im, x, r, y, indexes) | |
307 | ||
308 | =category Drawing | |
309 | ||
310 | Reads palette indexes for the horizontal line (x, y) to (r-1, y) into | |
311 | indexes. | |
312 | ||
313 | Returns the number of indexes read. | |
314 | ||
315 | Always returns 0 for direct color images. | |
316 | ||
317 | =cut | |
318 | */ | |
319 | int | |
320 | (i_gpal)(i_img *im, int x, int r, int y, i_palidx *vals) { | |
321 | return i_gpal(im, x, r, y, vals); | |
322 | } | |
323 | ||
324 | /* | |
325 | =item i_ppal(im, x, r, y, indexes) | |
326 | ||
327 | =category Drawing | |
328 | ||
329 | Writes palette indexes for the horizontal line (x, y) to (r-1, y) from | |
330 | indexes. | |
331 | ||
332 | Returns the number of indexes written. | |
333 | ||
334 | Always returns 0 for direct color images. | |
335 | ||
336 | =cut | |
337 | */ | |
338 | int | |
97ac0a96 | 339 | (i_ppal)(i_img *im, int x, int r, int y, const i_palidx *vals) { |
92bda632 TC |
340 | return i_ppal(im, x, r, y, vals); |
341 | } | |
342 | ||
343 | /* | |
344 | =item i_addcolors(im, colors, count) | |
345 | ||
346 | =category Paletted images | |
347 | ||
348 | Adds colors to the image's palette. | |
349 | ||
350 | On success returns the index of the lowest color added. | |
351 | ||
352 | On failure returns -1. | |
353 | ||
354 | Always fails for direct color images. | |
355 | ||
356 | =cut | |
357 | */ | |
358 | ||
359 | int | |
97ac0a96 | 360 | (i_addcolors)(i_img *im, const i_color *colors, int count) { |
92bda632 TC |
361 | return i_addcolors(im, colors, count); |
362 | } | |
363 | ||
364 | /* | |
365 | =item i_getcolors(im, index, colors, count) | |
366 | ||
367 | =category Paletted images | |
368 | ||
369 | Retrieves I<count> colors starting from I<index> in the image's | |
370 | palette. | |
371 | ||
372 | On success stores the colors into I<colors> and returns true. | |
373 | ||
374 | On failure returns false. | |
375 | ||
376 | Always fails for direct color images. | |
377 | ||
378 | Fails if there are less than I<index>+I<count> colors in the image's | |
379 | palette. | |
380 | ||
381 | =cut | |
382 | */ | |
383 | ||
384 | int | |
385 | (i_getcolors)(i_img *im, int i, i_color *colors, int count) { | |
386 | return i_getcolors(im, i, colors, count); | |
387 | } | |
388 | ||
389 | /* | |
390 | =item i_colorcount(im) | |
391 | ||
392 | =category Paletted images | |
393 | ||
394 | Returns the number of colors in the image's palette. | |
395 | ||
396 | Returns -1 for direct images. | |
397 | ||
398 | =cut | |
399 | */ | |
400 | ||
401 | int | |
402 | (i_colorcount)(i_img *im) { | |
403 | return i_colorcount(im); | |
404 | } | |
405 | ||
406 | /* | |
407 | =item i_maxcolors(im) | |
408 | ||
409 | =category Paletted images | |
410 | ||
411 | Returns the maximum number of colors the palette can hold for the | |
412 | image. | |
413 | ||
414 | Returns -1 for direct color images. | |
415 | ||
416 | =cut | |
417 | */ | |
418 | ||
419 | int | |
420 | (i_maxcolors)(i_img *im) { | |
421 | return i_maxcolors(im); | |
422 | } | |
423 | ||
424 | /* | |
425 | =item i_findcolor(im, color, &entry) | |
426 | ||
427 | =category Paletted images | |
428 | ||
429 | Searches the images palette for the given color. | |
430 | ||
431 | On success sets *I<entry> to the index of the color, and returns true. | |
432 | ||
433 | On failure returns false. | |
434 | ||
435 | Always fails on direct color images. | |
436 | ||
437 | =cut | |
438 | */ | |
439 | int | |
97ac0a96 | 440 | (i_findcolor)(i_img *im, const i_color *color, i_palidx *entry) { |
92bda632 TC |
441 | return i_findcolor(im, color, entry); |
442 | } | |
443 | ||
444 | /* | |
445 | =item i_setcolors(im, index, colors, count) | |
446 | ||
447 | =category Paletted images | |
448 | ||
449 | Sets I<count> colors starting from I<index> in the image's palette. | |
450 | ||
451 | On sucess returns true. | |
452 | ||
453 | On failure returns false. | |
454 | ||
455 | The image must have at least I<index>+I<count> colors in it's palette | |
456 | for this to succeed. | |
457 | ||
458 | Always fails on direct color images. | |
459 | ||
460 | =cut | |
461 | */ | |
462 | int | |
97ac0a96 | 463 | (i_setcolors)(i_img *im, int index, const i_color *colors, int count) { |
92bda632 TC |
464 | return i_setcolors(im, index, colors, count); |
465 | } | |
466 |