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source: bootcd/isolinux/syslinux-6.03/com32/lib/libpng/pngset.c @ e16e8f2

Last change on this file since e16e8f2 was e16e8f2, checked in by Edwin Eefting <edwin@datux.nl>, 3 years ago
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1
2	/* pngset.c - storage of image information into info struct
3	*
4	* Last changed in libpng 1.2.43 [February 25, 2010]
5	* Copyright (c) 1998-2010 Glenn Randers-Pehrson
6	* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
7	* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
8	*
9	* This code is released under the libpng license.
10	* For conditions of distribution and use, see the disclaimer
11	* and license in png.h
12	*
13	* The functions here are used during reads to store data from the file
14	* into the info struct, and during writes to store application data
15	* into the info struct for writing into the file. This abstracts the
16	* info struct and allows us to change the structure in the future.
17	*/
18
19	#define PNG_INTERNAL
20	#define PNG_NO_PEDANTIC_WARNINGS
21	#include "png.h"
22	#if defined(PNG_READ_SUPPORTED) \|\| defined(PNG_WRITE_SUPPORTED)
23
24	#ifdef PNG_bKGD_SUPPORTED
25	void PNGAPI
26	png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background)
27	{
28	png_debug1(1, "in %s storage function", "bKGD");
29
30	if (png_ptr == NULL \|\| info_ptr == NULL)
31	return;
32
33	png_memcpy(&(info_ptr->background), background, png_sizeof(png_color_16));
34	info_ptr->valid \|= PNG_INFO_bKGD;
35	}
36	#endif
37
38	#ifdef PNG_cHRM_SUPPORTED
39	#ifdef PNG_FLOATING_POINT_SUPPORTED
40	void PNGAPI
41	png_set_cHRM(png_structp png_ptr, png_infop info_ptr,
42	double white_x, double white_y, double red_x, double red_y,
43	double green_x, double green_y, double blue_x, double blue_y)
44	{
45	png_debug1(1, "in %s storage function", "cHRM");
46
47	if (png_ptr == NULL \|\| info_ptr == NULL)
48	return;
49
50	info_ptr->x_white = (float)white_x;
51	info_ptr->y_white = (float)white_y;
52	info_ptr->x_red = (float)red_x;
53	info_ptr->y_red = (float)red_y;
54	info_ptr->x_green = (float)green_x;
55	info_ptr->y_green = (float)green_y;
56	info_ptr->x_blue = (float)blue_x;
57	info_ptr->y_blue = (float)blue_y;
58	#ifdef PNG_FIXED_POINT_SUPPORTED
59	info_ptr->int_x_white = (png_fixed_point)(white_x*100000.+0.5);
60	info_ptr->int_y_white = (png_fixed_point)(white_y*100000.+0.5);
61	info_ptr->int_x_red = (png_fixed_point)( red_x*100000.+0.5);
62	info_ptr->int_y_red = (png_fixed_point)( red_y*100000.+0.5);
63	info_ptr->int_x_green = (png_fixed_point)(green_x*100000.+0.5);
64	info_ptr->int_y_green = (png_fixed_point)(green_y*100000.+0.5);
65	info_ptr->int_x_blue = (png_fixed_point)( blue_x*100000.+0.5);
66	info_ptr->int_y_blue = (png_fixed_point)( blue_y*100000.+0.5);
67	#endif
68	info_ptr->valid \|= PNG_INFO_cHRM;
69	}
70	#endif /* PNG_FLOATING_POINT_SUPPORTED */
71
72	#ifdef PNG_FIXED_POINT_SUPPORTED
73	void PNGAPI
74	png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr,
75	png_fixed_point white_x, png_fixed_point white_y, png_fixed_point red_x,
76	png_fixed_point red_y, png_fixed_point green_x, png_fixed_point green_y,
77	png_fixed_point blue_x, png_fixed_point blue_y)
78	{
79	png_debug1(1, "in %s storage function", "cHRM fixed");
80
81	if (png_ptr == NULL \|\| info_ptr == NULL)
82	return;
83
84	#ifdef PNG_CHECK_cHRM_SUPPORTED
85	if (png_check_cHRM_fixed(png_ptr,
86	white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y))
87	#endif
88	{
89	info_ptr->int_x_white = white_x;
90	info_ptr->int_y_white = white_y;
91	info_ptr->int_x_red = red_x;
92	info_ptr->int_y_red = red_y;
93	info_ptr->int_x_green = green_x;
94	info_ptr->int_y_green = green_y;
95	info_ptr->int_x_blue = blue_x;
96	info_ptr->int_y_blue = blue_y;
97	#ifdef PNG_FLOATING_POINT_SUPPORTED
98	info_ptr->x_white = (float)(white_x/100000.);
99	info_ptr->y_white = (float)(white_y/100000.);
100	info_ptr->x_red = (float)( red_x/100000.);
101	info_ptr->y_red = (float)( red_y/100000.);
102	info_ptr->x_green = (float)(green_x/100000.);
103	info_ptr->y_green = (float)(green_y/100000.);
104	info_ptr->x_blue = (float)( blue_x/100000.);
105	info_ptr->y_blue = (float)( blue_y/100000.);
106	#endif
107	info_ptr->valid \|= PNG_INFO_cHRM;
108	}
109	}
110	#endif /* PNG_FIXED_POINT_SUPPORTED */
111	#endif /* PNG_cHRM_SUPPORTED */
112
113	#ifdef PNG_gAMA_SUPPORTED
114	#ifdef PNG_FLOATING_POINT_SUPPORTED
115	void PNGAPI
116	png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma)
117	{
118	double png_gamma;
119
120	png_debug1(1, "in %s storage function", "gAMA");
121
122	if (png_ptr == NULL \|\| info_ptr == NULL)
123	return;
124
125	/* Check for overflow */
126	if (file_gamma > 21474.83)
127	{
128	png_warning(png_ptr, "Limiting gamma to 21474.83");
129	png_gamma=21474.83;
130	}
131	else
132	png_gamma = file_gamma;
133	info_ptr->gamma = (float)png_gamma;
134	#ifdef PNG_FIXED_POINT_SUPPORTED
135	info_ptr->int_gamma = (int)(png_gamma*100000.+.5);
136	#endif
137	info_ptr->valid \|= PNG_INFO_gAMA;
138	if (png_gamma == 0.0)
139	png_warning(png_ptr, "Setting gamma=0");
140	}
141	#endif
142	void PNGAPI
143	png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
144	int_gamma)
145	{
146	png_fixed_point png_gamma;
147
148	png_debug1(1, "in %s storage function", "gAMA");
149
150	if (png_ptr == NULL \|\| info_ptr == NULL)
151	return;
152
153	if (int_gamma > (png_fixed_point)PNG_UINT_31_MAX)
154	{
155	png_warning(png_ptr, "Limiting gamma to 21474.83");
156	png_gamma=PNG_UINT_31_MAX;
157	}
158	else
159	{
160	if (int_gamma < 0)
161	{
162	png_warning(png_ptr, "Setting negative gamma to zero");
163	png_gamma = 0;
164	}
165	else
166	png_gamma = int_gamma;
167	}
168	#ifdef PNG_FLOATING_POINT_SUPPORTED
169	info_ptr->gamma = (float)(png_gamma/100000.);
170	#endif
171	#ifdef PNG_FIXED_POINT_SUPPORTED
172	info_ptr->int_gamma = png_gamma;
173	#endif
174	info_ptr->valid \|= PNG_INFO_gAMA;
175	if (png_gamma == 0)
176	png_warning(png_ptr, "Setting gamma=0");
177	}
178	#endif
179
180	#ifdef PNG_hIST_SUPPORTED
181	void PNGAPI
182	png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)
183	{
184	int i;
185
186	png_debug1(1, "in %s storage function", "hIST");
187
188	if (png_ptr == NULL \|\| info_ptr == NULL)
189	return;
190
191	if (info_ptr->num_palette == 0 \|\| info_ptr->num_palette
192	> PNG_MAX_PALETTE_LENGTH)
193	{
194	png_warning(png_ptr,
195	"Invalid palette size, hIST allocation skipped.");
196	return;
197	}
198
199	#ifdef PNG_FREE_ME_SUPPORTED
200	png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0);
201	#endif
202	/* Changed from info->num_palette to PNG_MAX_PALETTE_LENGTH in
203	* version 1.2.1
204	*/
205	png_ptr->hist = (png_uint_16p)png_malloc_warn(png_ptr,
206	(png_uint_32)(PNG_MAX_PALETTE_LENGTH * png_sizeof(png_uint_16)));
207	if (png_ptr->hist == NULL)
208	{
209	png_warning(png_ptr, "Insufficient memory for hIST chunk data.");
210	return;
211	}
212
213	for (i = 0; i < info_ptr->num_palette; i++)
214	png_ptr->hist[i] = hist[i];
215	info_ptr->hist = png_ptr->hist;
216	info_ptr->valid \|= PNG_INFO_hIST;
217
218	#ifdef PNG_FREE_ME_SUPPORTED
219	info_ptr->free_me \|= PNG_FREE_HIST;
220	#else
221	png_ptr->flags \|= PNG_FLAG_FREE_HIST;
222	#endif
223	}
224	#endif
225
226	void PNGAPI
227	png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
228	png_uint_32 width, png_uint_32 height, int bit_depth,
229	int color_type, int interlace_type, int compression_type,
230	int filter_type)
231	{
232	png_debug1(1, "in %s storage function", "IHDR");
233
234	if (png_ptr == NULL \|\| info_ptr == NULL)
235	return;
236
237	info_ptr->width = width;
238	info_ptr->height = height;
239	info_ptr->bit_depth = (png_byte)bit_depth;
240	info_ptr->color_type = (png_byte)color_type;
241	info_ptr->compression_type = (png_byte)compression_type;
242	info_ptr->filter_type = (png_byte)filter_type;
243	info_ptr->interlace_type = (png_byte)interlace_type;
244
245	png_check_IHDR (png_ptr, info_ptr->width, info_ptr->height,
246	info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type,
247	info_ptr->compression_type, info_ptr->filter_type);
248
249	if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
250	info_ptr->channels = 1;
251	else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR)
252	info_ptr->channels = 3;
253	else
254	info_ptr->channels = 1;
255	if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA)
256	info_ptr->channels++;
257	info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth);
258
259	/* Check for potential overflow */
260	if (width > (PNG_UINT_32_MAX
261	>> 3) /* 8-byte RGBA pixels */
262	- 64 /* bigrowbuf hack */
263	- 1 /* filter byte */
264	- 78 / rounding of width to multiple of 8 pixels */
265	- 8) /* extra max_pixel_depth pad */
266	info_ptr->rowbytes = (png_size_t)0;
267	else
268	info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width);
269	}
270
271	#ifdef PNG_oFFs_SUPPORTED
272	void PNGAPI
273	png_set_oFFs(png_structp png_ptr, png_infop info_ptr,
274	png_int_32 offset_x, png_int_32 offset_y, int unit_type)
275	{
276	png_debug1(1, "in %s storage function", "oFFs");
277
278	if (png_ptr == NULL \|\| info_ptr == NULL)
279	return;
280
281	info_ptr->x_offset = offset_x;
282	info_ptr->y_offset = offset_y;
283	info_ptr->offset_unit_type = (png_byte)unit_type;
284	info_ptr->valid \|= PNG_INFO_oFFs;
285	}
286	#endif
287
288	#ifdef PNG_pCAL_SUPPORTED
289	void PNGAPI
290	png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
291	png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams,
292	png_charp units, png_charpp params)
293	{
294	png_uint_32 length;
295	int i;
296
297	png_debug1(1, "in %s storage function", "pCAL");
298
299	if (png_ptr == NULL \|\| info_ptr == NULL)
300	return;
301
302	length = png_strlen(purpose) + 1;
303	png_debug1(3, "allocating purpose for info (%lu bytes)",
304	(unsigned long)length);
305	info_ptr->pcal_purpose = (png_charp)png_malloc_warn(png_ptr, length);
306	if (info_ptr->pcal_purpose == NULL)
307	{
308	png_warning(png_ptr, "Insufficient memory for pCAL purpose.");
309	return;
310	}
311	png_memcpy(info_ptr->pcal_purpose, purpose, (png_size_t)length);
312
313	png_debug(3, "storing X0, X1, type, and nparams in info");
314	info_ptr->pcal_X0 = X0;
315	info_ptr->pcal_X1 = X1;
316	info_ptr->pcal_type = (png_byte)type;
317	info_ptr->pcal_nparams = (png_byte)nparams;
318
319	length = png_strlen(units) + 1;
320	png_debug1(3, "allocating units for info (%lu bytes)",
321	(unsigned long)length);
322	info_ptr->pcal_units = (png_charp)png_malloc_warn(png_ptr, length);
323	if (info_ptr->pcal_units == NULL)
324	{
325	png_warning(png_ptr, "Insufficient memory for pCAL units.");
326	return;
327	}
328	png_memcpy(info_ptr->pcal_units, units, (png_size_t)length);
329
330	info_ptr->pcal_params = (png_charpp)png_malloc_warn(png_ptr,
331	(png_uint_32)((nparams + 1) * png_sizeof(png_charp)));
332	if (info_ptr->pcal_params == NULL)
333	{
334	png_warning(png_ptr, "Insufficient memory for pCAL params.");
335	return;
336	}
337
338	png_memset(info_ptr->pcal_params, 0, (nparams + 1) * png_sizeof(png_charp));
339
340	for (i = 0; i < nparams; i++)
341	{
342	length = png_strlen(params[i]) + 1;
343	png_debug2(3, "allocating parameter %d for info (%lu bytes)", i,
344	(unsigned long)length);
345	info_ptr->pcal_params[i] = (png_charp)png_malloc_warn(png_ptr, length);
346	if (info_ptr->pcal_params[i] == NULL)
347	{
348	png_warning(png_ptr, "Insufficient memory for pCAL parameter.");
349	return;
350	}
351	png_memcpy(info_ptr->pcal_params[i], params[i], (png_size_t)length);
352	}
353
354	info_ptr->valid \|= PNG_INFO_pCAL;
355	#ifdef PNG_FREE_ME_SUPPORTED
356	info_ptr->free_me \|= PNG_FREE_PCAL;
357	#endif
358	}
359	#endif
360
361	#if defined(PNG_READ_sCAL_SUPPORTED) \|\| defined(PNG_WRITE_sCAL_SUPPORTED)
362	#ifdef PNG_FLOATING_POINT_SUPPORTED
363	void PNGAPI
364	png_set_sCAL(png_structp png_ptr, png_infop info_ptr,
365	int unit, double width, double height)
366	{
367	png_debug1(1, "in %s storage function", "sCAL");
368
369	if (png_ptr == NULL \|\| info_ptr == NULL)
370	return;
371
372	info_ptr->scal_unit = (png_byte)unit;
373	info_ptr->scal_pixel_width = width;
374	info_ptr->scal_pixel_height = height;
375
376	info_ptr->valid \|= PNG_INFO_sCAL;
377	}
378	#else
379	#ifdef PNG_FIXED_POINT_SUPPORTED
380	void PNGAPI
381	png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr,
382	int unit, png_charp swidth, png_charp sheight)
383	{
384	png_uint_32 length;
385
386	png_debug1(1, "in %s storage function", "sCAL");
387
388	if (png_ptr == NULL \|\| info_ptr == NULL)
389	return;
390
391	info_ptr->scal_unit = (png_byte)unit;
392
393	length = png_strlen(swidth) + 1;
394	png_debug1(3, "allocating unit for info (%u bytes)",
395	(unsigned int)length);
396	info_ptr->scal_s_width = (png_charp)png_malloc_warn(png_ptr, length);
397	if (info_ptr->scal_s_width == NULL)
398	{
399	png_warning(png_ptr,
400	"Memory allocation failed while processing sCAL.");
401	return;
402	}
403	png_memcpy(info_ptr->scal_s_width, swidth, (png_size_t)length);
404
405	length = png_strlen(sheight) + 1;
406	png_debug1(3, "allocating unit for info (%u bytes)",
407	(unsigned int)length);
408	info_ptr->scal_s_height = (png_charp)png_malloc_warn(png_ptr, length);
409	if (info_ptr->scal_s_height == NULL)
410	{
411	png_free (png_ptr, info_ptr->scal_s_width);
412	info_ptr->scal_s_width = NULL;
413	png_warning(png_ptr,
414	"Memory allocation failed while processing sCAL.");
415	return;
416	}
417	png_memcpy(info_ptr->scal_s_height, sheight, (png_size_t)length);
418	info_ptr->valid \|= PNG_INFO_sCAL;
419	#ifdef PNG_FREE_ME_SUPPORTED
420	info_ptr->free_me \|= PNG_FREE_SCAL;
421	#endif
422	}
423	#endif
424	#endif
425	#endif
426
427	#ifdef PNG_pHYs_SUPPORTED
428	void PNGAPI
429	png_set_pHYs(png_structp png_ptr, png_infop info_ptr,
430	png_uint_32 res_x, png_uint_32 res_y, int unit_type)
431	{
432	png_debug1(1, "in %s storage function", "pHYs");
433
434	if (png_ptr == NULL \|\| info_ptr == NULL)
435	return;
436
437	info_ptr->x_pixels_per_unit = res_x;
438	info_ptr->y_pixels_per_unit = res_y;
439	info_ptr->phys_unit_type = (png_byte)unit_type;
440	info_ptr->valid \|= PNG_INFO_pHYs;
441	}
442	#endif
443
444	void PNGAPI
445	png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
446	png_colorp palette, int num_palette)
447	{
448
449	png_debug1(1, "in %s storage function", "PLTE");
450
451	if (png_ptr == NULL \|\| info_ptr == NULL)
452	return;
453
454	if (num_palette < 0 \|\| num_palette > PNG_MAX_PALETTE_LENGTH)
455	{
456	if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
457	png_error(png_ptr, "Invalid palette length");
458	else
459	{
460	png_warning(png_ptr, "Invalid palette length");
461	return;
462	}
463	}
464
465	/* It may not actually be necessary to set png_ptr->palette here;
466	* we do it for backward compatibility with the way the png_handle_tRNS
467	* function used to do the allocation.
468	*/
469	#ifdef PNG_FREE_ME_SUPPORTED
470	png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0);
471	#endif
472
473	/* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead
474	* of num_palette entries, in case of an invalid PNG file that has
475	* too-large sample values.
476	*/
477	png_ptr->palette = (png_colorp)png_calloc(png_ptr,
478	PNG_MAX_PALETTE_LENGTH * png_sizeof(png_color));
479	png_memcpy(png_ptr->palette, palette, num_palette * png_sizeof(png_color));
480	info_ptr->palette = png_ptr->palette;
481	info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette;
482
483	#ifdef PNG_FREE_ME_SUPPORTED
484	info_ptr->free_me \|= PNG_FREE_PLTE;
485	#else
486	png_ptr->flags \|= PNG_FLAG_FREE_PLTE;
487	#endif
488
489	info_ptr->valid \|= PNG_INFO_PLTE;
490	}
491
492	#ifdef PNG_sBIT_SUPPORTED
493	void PNGAPI
494	png_set_sBIT(png_structp png_ptr, png_infop info_ptr,
495	png_color_8p sig_bit)
496	{
497	png_debug1(1, "in %s storage function", "sBIT");
498
499	if (png_ptr == NULL \|\| info_ptr == NULL)
500	return;
501
502	png_memcpy(&(info_ptr->sig_bit), sig_bit, png_sizeof(png_color_8));
503	info_ptr->valid \|= PNG_INFO_sBIT;
504	}
505	#endif
506
507	#ifdef PNG_sRGB_SUPPORTED
508	void PNGAPI
509	png_set_sRGB(png_structp png_ptr, png_infop info_ptr, int intent)
510	{
511	png_debug1(1, "in %s storage function", "sRGB");
512
513	if (png_ptr == NULL \|\| info_ptr == NULL)
514	return;
515
516	info_ptr->srgb_intent = (png_byte)intent;
517	info_ptr->valid \|= PNG_INFO_sRGB;
518	}
519
520	void PNGAPI
521	png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr,
522	int intent)
523	{
524	#ifdef PNG_gAMA_SUPPORTED
525	#ifdef PNG_FLOATING_POINT_SUPPORTED
526	float file_gamma;
527	#endif
528	#ifdef PNG_FIXED_POINT_SUPPORTED
529	png_fixed_point int_file_gamma;
530	#endif
531	#endif
532	#ifdef PNG_cHRM_SUPPORTED
533	#ifdef PNG_FLOATING_POINT_SUPPORTED
534	float white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y;
535	#endif
536	png_fixed_point int_white_x, int_white_y, int_red_x, int_red_y, int_green_x,
537	int_green_y, int_blue_x, int_blue_y;
538	#endif
539	png_debug1(1, "in %s storage function", "sRGB_gAMA_and_cHRM");
540
541	if (png_ptr == NULL \|\| info_ptr == NULL)
542	return;
543
544	png_set_sRGB(png_ptr, info_ptr, intent);
545
546	#ifdef PNG_gAMA_SUPPORTED
547	#ifdef PNG_FLOATING_POINT_SUPPORTED
548	file_gamma = (float).45455;
549	png_set_gAMA(png_ptr, info_ptr, file_gamma);
550	#endif
551	#ifdef PNG_FIXED_POINT_SUPPORTED
552	int_file_gamma = 45455L;
553	png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma);
554	#endif
555	#endif
556
557	#ifdef PNG_cHRM_SUPPORTED
558	int_white_x = 31270L;
559	int_white_y = 32900L;
560	int_red_x = 64000L;
561	int_red_y = 33000L;
562	int_green_x = 30000L;
563	int_green_y = 60000L;
564	int_blue_x = 15000L;
565	int_blue_y = 6000L;
566
567	#ifdef PNG_FLOATING_POINT_SUPPORTED
568	white_x = (float).3127;
569	white_y = (float).3290;
570	red_x = (float).64;
571	red_y = (float).33;
572	green_x = (float).30;
573	green_y = (float).60;
574	blue_x = (float).15;
575	blue_y = (float).06;
576	#endif
577
578	#ifdef PNG_FIXED_POINT_SUPPORTED
579	png_set_cHRM_fixed(png_ptr, info_ptr,
580	int_white_x, int_white_y, int_red_x, int_red_y, int_green_x,
581	int_green_y, int_blue_x, int_blue_y);
582	#endif
583	#ifdef PNG_FLOATING_POINT_SUPPORTED
584	png_set_cHRM(png_ptr, info_ptr,
585	white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y);
586	#endif
587	#endif /* cHRM */
588	}
589	#endif /* sRGB */
590
591
592	#ifdef PNG_iCCP_SUPPORTED
593	void PNGAPI
594	png_set_iCCP(png_structp png_ptr, png_infop info_ptr,
595	png_charp name, int compression_type,
596	png_charp profile, png_uint_32 proflen)
597	{
598	png_charp new_iccp_name;
599	png_charp new_iccp_profile;
600	png_uint_32 length;
601
602	png_debug1(1, "in %s storage function", "iCCP");
603
604	if (png_ptr == NULL \|\| info_ptr == NULL \|\| name == NULL \|\| profile == NULL)
605	return;
606
607	length = png_strlen(name)+1;
608	new_iccp_name = (png_charp)png_malloc_warn(png_ptr, length);
609	if (new_iccp_name == NULL)
610	{
611	png_warning(png_ptr, "Insufficient memory to process iCCP chunk.");
612	return;
613	}
614	png_memcpy(new_iccp_name, name, length);
615	new_iccp_profile = (png_charp)png_malloc_warn(png_ptr, proflen);
616	if (new_iccp_profile == NULL)
617	{
618	png_free (png_ptr, new_iccp_name);
619	png_warning(png_ptr,
620	"Insufficient memory to process iCCP profile.");
621	return;
622	}
623	png_memcpy(new_iccp_profile, profile, (png_size_t)proflen);
624
625	png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, 0);
626
627	info_ptr->iccp_proflen = proflen;
628	info_ptr->iccp_name = new_iccp_name;
629	info_ptr->iccp_profile = new_iccp_profile;
630	/* Compression is always zero but is here so the API and info structure
631	* does not have to change if we introduce multiple compression types
632	*/
633	info_ptr->iccp_compression = (png_byte)compression_type;
634	#ifdef PNG_FREE_ME_SUPPORTED
635	info_ptr->free_me \|= PNG_FREE_ICCP;
636	#endif
637	info_ptr->valid \|= PNG_INFO_iCCP;
638	}
639	#endif
640
641	#ifdef PNG_TEXT_SUPPORTED
642	void PNGAPI
643	png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
644	int num_text)
645	{
646	int ret;
647	ret = png_set_text_2(png_ptr, info_ptr, text_ptr, num_text);
648	if (ret)
649	png_error(png_ptr, "Insufficient memory to store text");
650	}
651
652	int /* PRIVATE */
653	png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
654	int num_text)
655	{
656	int i;
657
658	png_debug1(1, "in %s storage function", ((png_ptr == NULL \|\|
659	png_ptr->chunk_name[0] == '\0') ?
660	"text" : (png_const_charp)png_ptr->chunk_name));
661
662	if (png_ptr == NULL \|\| info_ptr == NULL \|\| num_text == 0)
663	return(0);
664
665	/* Make sure we have enough space in the "text" array in info_struct
666	* to hold all of the incoming text_ptr objects.
667	*/
668	if (info_ptr->num_text + num_text > info_ptr->max_text)
669	{
670	if (info_ptr->text != NULL)
671	{
672	png_textp old_text;
673	int old_max;
674
675	old_max = info_ptr->max_text;
676	info_ptr->max_text = info_ptr->num_text + num_text + 8;
677	old_text = info_ptr->text;
678	info_ptr->text = (png_textp)png_malloc_warn(png_ptr,
679	(png_uint_32)(info_ptr->max_text * png_sizeof(png_text)));
680	if (info_ptr->text == NULL)
681	{
682	png_free(png_ptr, old_text);
683	return(1);
684	}
685	png_memcpy(info_ptr->text, old_text, (png_size_t)(old_max *
686	png_sizeof(png_text)));
687	png_free(png_ptr, old_text);
688	}
689	else
690	{
691	info_ptr->max_text = num_text + 8;
692	info_ptr->num_text = 0;
693	info_ptr->text = (png_textp)png_malloc_warn(png_ptr,
694	(png_uint_32)(info_ptr->max_text * png_sizeof(png_text)));
695	if (info_ptr->text == NULL)
696	return(1);
697	#ifdef PNG_FREE_ME_SUPPORTED
698	info_ptr->free_me \|= PNG_FREE_TEXT;
699	#endif
700	}
701	png_debug1(3, "allocated %d entries for info_ptr->text",
702	info_ptr->max_text);
703	}
704	for (i = 0; i < num_text; i++)
705	{
706	png_size_t text_length, key_len;
707	png_size_t lang_len, lang_key_len;
708	png_textp textp = &(info_ptr->text[info_ptr->num_text]);
709
710	if (text_ptr[i].key == NULL)
711	continue;
712
713	key_len = png_strlen(text_ptr[i].key);
714
715	if (text_ptr[i].compression <= 0)
716	{
717	lang_len = 0;
718	lang_key_len = 0;
719	}
720
721	else
722	#ifdef PNG_iTXt_SUPPORTED
723	{
724	/* Set iTXt data */
725
726	if (text_ptr[i].lang != NULL)
727	lang_len = png_strlen(text_ptr[i].lang);
728	else
729	lang_len = 0;
730	if (text_ptr[i].lang_key != NULL)
731	lang_key_len = png_strlen(text_ptr[i].lang_key);
732	else
733	lang_key_len = 0;
734	}
735	#else /* PNG_iTXt_SUPPORTED */
736	{
737	png_warning(png_ptr, "iTXt chunk not supported.");
738	continue;
739	}
740	#endif
741
742	if (text_ptr[i].text == NULL \|\| text_ptr[i].text[0] == '\0')
743	{
744	text_length = 0;
745	#ifdef PNG_iTXt_SUPPORTED
746	if (text_ptr[i].compression > 0)
747	textp->compression = PNG_ITXT_COMPRESSION_NONE;
748	else
749	#endif
750	textp->compression = PNG_TEXT_COMPRESSION_NONE;
751	}
752
753	else
754	{
755	text_length = png_strlen(text_ptr[i].text);
756	textp->compression = text_ptr[i].compression;
757	}
758
759	textp->key = (png_charp)png_malloc_warn(png_ptr,
760	(png_uint_32)
761	(key_len + text_length + lang_len + lang_key_len + 4));
762	if (textp->key == NULL)
763	return(1);
764	png_debug2(2, "Allocated %lu bytes at %x in png_set_text",
765	(png_uint_32)
766	(key_len + lang_len + lang_key_len + text_length + 4),
767	(int)textp->key);
768
769	png_memcpy(textp->key, text_ptr[i].key,(png_size_t)(key_len));
770	*(textp->key + key_len) = '\0';
771	#ifdef PNG_iTXt_SUPPORTED
772	if (text_ptr[i].compression > 0)
773	{
774	textp->lang = textp->key + key_len + 1;
775	png_memcpy(textp->lang, text_ptr[i].lang, lang_len);
776	*(textp->lang + lang_len) = '\0';
777	textp->lang_key = textp->lang + lang_len + 1;
778	png_memcpy(textp->lang_key, text_ptr[i].lang_key, lang_key_len);
779	*(textp->lang_key + lang_key_len) = '\0';
780	textp->text = textp->lang_key + lang_key_len + 1;
781	}
782	else
783	#endif
784	{
785	#ifdef PNG_iTXt_SUPPORTED
786	textp->lang=NULL;
787	textp->lang_key=NULL;
788	#endif
789	textp->text = textp->key + key_len + 1;
790	}
791	if (text_length)
792	png_memcpy(textp->text, text_ptr[i].text,
793	(png_size_t)(text_length));
794	*(textp->text + text_length) = '\0';
795
796	#ifdef PNG_iTXt_SUPPORTED
797	if (textp->compression > 0)
798	{
799	textp->text_length = 0;
800	textp->itxt_length = text_length;
801	}
802	else
803	#endif
804
805	{
806	textp->text_length = text_length;
807	#ifdef PNG_iTXt_SUPPORTED
808	textp->itxt_length = 0;
809	#endif
810	}
811	info_ptr->num_text++;
812	png_debug1(3, "transferred text chunk %d", info_ptr->num_text);
813	}
814	return(0);
815	}
816	#endif
817
818	#ifdef PNG_tIME_SUPPORTED
819	void PNGAPI
820	png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time)
821	{
822	png_debug1(1, "in %s storage function", "tIME");
823
824	if (png_ptr == NULL \|\| info_ptr == NULL \|\|
825	(png_ptr->mode & PNG_WROTE_tIME))
826	return;
827
828	png_memcpy(&(info_ptr->mod_time), mod_time, png_sizeof(png_time));
829	info_ptr->valid \|= PNG_INFO_tIME;
830	}
831	#endif
832
833	#ifdef PNG_tRNS_SUPPORTED
834	void PNGAPI
835	png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
836	png_bytep trans, int num_trans, png_color_16p trans_values)
837	{
838	png_debug1(1, "in %s storage function", "tRNS");
839
840	if (png_ptr == NULL \|\| info_ptr == NULL)
841	return;
842
843	if (trans != NULL)
844	{
845	/* It may not actually be necessary to set png_ptr->trans here;
846	* we do it for backward compatibility with the way the png_handle_tRNS
847	* function used to do the allocation.
848	*/
849
850	#ifdef PNG_FREE_ME_SUPPORTED
851	png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0);
852	#endif
853
854	/* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */
855	png_ptr->trans = info_ptr->trans = (png_bytep)png_malloc(png_ptr,
856	(png_uint_32)PNG_MAX_PALETTE_LENGTH);
857	if (num_trans > 0 && num_trans <= PNG_MAX_PALETTE_LENGTH)
858	png_memcpy(info_ptr->trans, trans, (png_size_t)num_trans);
859	}
860
861	if (trans_values != NULL)
862	{
863	int sample_max = (1 << info_ptr->bit_depth);
864	if ((info_ptr->color_type == PNG_COLOR_TYPE_GRAY &&
865	(int)trans_values->gray > sample_max) \|\|
866	(info_ptr->color_type == PNG_COLOR_TYPE_RGB &&
867	((int)trans_values->red > sample_max \|\|
868	(int)trans_values->green > sample_max \|\|
869	(int)trans_values->blue > sample_max)))
870	png_warning(png_ptr,
871	"tRNS chunk has out-of-range samples for bit_depth");
872	png_memcpy(&(info_ptr->trans_values), trans_values,
873	png_sizeof(png_color_16));
874	if (num_trans == 0)
875	num_trans = 1;
876	}
877
878	info_ptr->num_trans = (png_uint_16)num_trans;
879	if (num_trans != 0)
880	{
881	info_ptr->valid \|= PNG_INFO_tRNS;
882	#ifdef PNG_FREE_ME_SUPPORTED
883	info_ptr->free_me \|= PNG_FREE_TRNS;
884	#else
885	png_ptr->flags \|= PNG_FLAG_FREE_TRNS;
886	#endif
887	}
888	}
889	#endif
890
891	#ifdef PNG_sPLT_SUPPORTED
892	void PNGAPI
893	png_set_sPLT(png_structp png_ptr,
894	png_infop info_ptr, png_sPLT_tp entries, int nentries)
895	/*
896	* entries - array of png_sPLT_t structures
897	* to be added to the list of palettes
898	* in the info structure.
899	* nentries - number of palette structures to be
900	* added.
901	*/
902	{
903	png_sPLT_tp np;
904	int i;
905
906	if (png_ptr == NULL \|\| info_ptr == NULL)
907	return;
908
909	np = (png_sPLT_tp)png_malloc_warn(png_ptr,
910	(info_ptr->splt_palettes_num + nentries) *
911	(png_uint_32)png_sizeof(png_sPLT_t));
912	if (np == NULL)
913	{
914	png_warning(png_ptr, "No memory for sPLT palettes.");
915	return;
916	}
917
918	png_memcpy(np, info_ptr->splt_palettes,
919	info_ptr->splt_palettes_num * png_sizeof(png_sPLT_t));
920	png_free(png_ptr, info_ptr->splt_palettes);
921	info_ptr->splt_palettes=NULL;
922
923	for (i = 0; i < nentries; i++)
924	{
925	png_sPLT_tp to = np + info_ptr->splt_palettes_num + i;
926	png_sPLT_tp from = entries + i;
927	png_uint_32 length;
928
929	length = png_strlen(from->name) + 1;
930	to->name = (png_charp)png_malloc_warn(png_ptr, length);
931	if (to->name == NULL)
932	{
933	png_warning(png_ptr,
934	"Out of memory while processing sPLT chunk");
935	continue;
936	}
937	png_memcpy(to->name, from->name, length);
938	to->entries = (png_sPLT_entryp)png_malloc_warn(png_ptr,
939	(png_uint_32)(from->nentries * png_sizeof(png_sPLT_entry)));
940	if (to->entries == NULL)
941	{
942	png_warning(png_ptr,
943	"Out of memory while processing sPLT chunk");
944	png_free(png_ptr, to->name);
945	to->name = NULL;
946	continue;
947	}
948	png_memcpy(to->entries, from->entries,
949	from->nentries * png_sizeof(png_sPLT_entry));
950	to->nentries = from->nentries;
951	to->depth = from->depth;
952	}
953
954	info_ptr->splt_palettes = np;
955	info_ptr->splt_palettes_num += nentries;
956	info_ptr->valid \|= PNG_INFO_sPLT;
957	#ifdef PNG_FREE_ME_SUPPORTED
958	info_ptr->free_me \|= PNG_FREE_SPLT;
959	#endif
960	}
961	#endif /* PNG_sPLT_SUPPORTED */
962
963	#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
964	void PNGAPI
965	png_set_unknown_chunks(png_structp png_ptr,
966	png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns)
967	{
968	png_unknown_chunkp np;
969	int i;
970
971	if (png_ptr == NULL \|\| info_ptr == NULL \|\| num_unknowns == 0)
972	return;
973
974	np = (png_unknown_chunkp)png_malloc_warn(png_ptr,
975	(png_uint_32)((info_ptr->unknown_chunks_num + num_unknowns) *
976	png_sizeof(png_unknown_chunk)));
977	if (np == NULL)
978	{
979	png_warning(png_ptr,
980	"Out of memory while processing unknown chunk.");
981	return;
982	}
983
984	png_memcpy(np, info_ptr->unknown_chunks,
985	info_ptr->unknown_chunks_num * png_sizeof(png_unknown_chunk));
986	png_free(png_ptr, info_ptr->unknown_chunks);
987	info_ptr->unknown_chunks = NULL;
988
989	for (i = 0; i < num_unknowns; i++)
990	{
991	png_unknown_chunkp to = np + info_ptr->unknown_chunks_num + i;
992	png_unknown_chunkp from = unknowns + i;
993
994	png_memcpy((png_charp)to->name, (png_charp)from->name,
995	png_sizeof(from->name));
996	to->name[png_sizeof(to->name)-1] = '\0';
997	to->size = from->size;
998	/* Note our location in the read or write sequence */
999	to->location = (png_byte)(png_ptr->mode & 0xff);
1000
1001	if (from->size == 0)
1002	to->data=NULL;
1003	else
1004	{
1005	to->data = (png_bytep)png_malloc_warn(png_ptr,
1006	(png_uint_32)from->size);
1007	if (to->data == NULL)
1008	{
1009	png_warning(png_ptr,
1010	"Out of memory while processing unknown chunk.");
1011	to->size = 0;
1012	}
1013	else
1014	png_memcpy(to->data, from->data, from->size);
1015	}
1016	}
1017
1018	info_ptr->unknown_chunks = np;
1019	info_ptr->unknown_chunks_num += num_unknowns;
1020	#ifdef PNG_FREE_ME_SUPPORTED
1021	info_ptr->free_me \|= PNG_FREE_UNKN;
1022	#endif
1023	}
1024	void PNGAPI
1025	png_set_unknown_chunk_location(png_structp png_ptr, png_infop info_ptr,
1026	int chunk, int location)
1027	{
1028	if (png_ptr != NULL && info_ptr != NULL && chunk >= 0 && chunk <
1029	(int)info_ptr->unknown_chunks_num)
1030	info_ptr->unknown_chunks[chunk].location = (png_byte)location;
1031	}
1032	#endif
1033
1034	#if defined(PNG_1_0_X) \|\| defined(PNG_1_2_X)
1035	#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) \|\| \
1036	defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
1037	void PNGAPI
1038	png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted)
1039	{
1040	/* This function is deprecated in favor of png_permit_mng_features()
1041	and will be removed from libpng-1.3.0 */
1042
1043	png_debug(1, "in png_permit_empty_plte, DEPRECATED.");
1044
1045	if (png_ptr == NULL)
1046	return;
1047	png_ptr->mng_features_permitted = (png_byte)
1048	((png_ptr->mng_features_permitted & (~PNG_FLAG_MNG_EMPTY_PLTE)) \|
1049	((empty_plte_permitted & PNG_FLAG_MNG_EMPTY_PLTE)));
1050	}
1051	#endif
1052	#endif
1053
1054	#ifdef PNG_MNG_FEATURES_SUPPORTED
1055	png_uint_32 PNGAPI
1056	png_permit_mng_features (png_structp png_ptr, png_uint_32 mng_features)
1057	{
1058	png_debug(1, "in png_permit_mng_features");
1059
1060	if (png_ptr == NULL)
1061	return (png_uint_32)0;
1062	png_ptr->mng_features_permitted =
1063	(png_byte)(mng_features & PNG_ALL_MNG_FEATURES);
1064	return (png_uint_32)png_ptr->mng_features_permitted;
1065	}
1066	#endif
1067
1068	#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
1069	void PNGAPI
1070	png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep
1071	chunk_list, int num_chunks)
1072	{
1073	png_bytep new_list, p;
1074	int i, old_num_chunks;
1075	if (png_ptr == NULL)
1076	return;
1077	if (num_chunks == 0)
1078	{
1079	if (keep == PNG_HANDLE_CHUNK_ALWAYS \|\| keep == PNG_HANDLE_CHUNK_IF_SAFE)
1080	png_ptr->flags \|= PNG_FLAG_KEEP_UNKNOWN_CHUNKS;
1081	else
1082	png_ptr->flags &= ~PNG_FLAG_KEEP_UNKNOWN_CHUNKS;
1083
1084	if (keep == PNG_HANDLE_CHUNK_ALWAYS)
1085	png_ptr->flags \|= PNG_FLAG_KEEP_UNSAFE_CHUNKS;
1086	else
1087	png_ptr->flags &= ~PNG_FLAG_KEEP_UNSAFE_CHUNKS;
1088	return;
1089	}
1090	if (chunk_list == NULL)
1091	return;
1092	old_num_chunks = png_ptr->num_chunk_list;
1093	new_list=(png_bytep)png_malloc(png_ptr,
1094	(png_uint_32)
1095	(5*(num_chunks + old_num_chunks)));
1096	if (png_ptr->chunk_list != NULL)
1097	{
1098	png_memcpy(new_list, png_ptr->chunk_list,
1099	(png_size_t)(5*old_num_chunks));
1100	png_free(png_ptr, png_ptr->chunk_list);
1101	png_ptr->chunk_list=NULL;
1102	}
1103	png_memcpy(new_list + 5*old_num_chunks, chunk_list,
1104	(png_size_t)(5*num_chunks));
1105	for (p = new_list + 5*old_num_chunks + 4, i = 0; i<num_chunks; i++, p += 5)
1106	*p=(png_byte)keep;
1107	png_ptr->num_chunk_list = old_num_chunks + num_chunks;
1108	png_ptr->chunk_list = new_list;
1109	#ifdef PNG_FREE_ME_SUPPORTED
1110	png_ptr->free_me \|= PNG_FREE_LIST;
1111	#endif
1112	}
1113	#endif
1114
1115	#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
1116	void PNGAPI
1117	png_set_read_user_chunk_fn(png_structp png_ptr, png_voidp user_chunk_ptr,
1118	png_user_chunk_ptr read_user_chunk_fn)
1119	{
1120	png_debug(1, "in png_set_read_user_chunk_fn");
1121
1122	if (png_ptr == NULL)
1123	return;
1124
1125	png_ptr->read_user_chunk_fn = read_user_chunk_fn;
1126	png_ptr->user_chunk_ptr = user_chunk_ptr;
1127	}
1128	#endif
1129
1130	#ifdef PNG_INFO_IMAGE_SUPPORTED
1131	void PNGAPI
1132	png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers)
1133	{
1134	png_debug1(1, "in %s storage function", "rows");
1135
1136	if (png_ptr == NULL \|\| info_ptr == NULL)
1137	return;
1138
1139	if (info_ptr->row_pointers && (info_ptr->row_pointers != row_pointers))
1140	png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0);
1141	info_ptr->row_pointers = row_pointers;
1142	if (row_pointers)
1143	info_ptr->valid \|= PNG_INFO_IDAT;
1144	}
1145	#endif
1146
1147	void PNGAPI
1148	png_set_compression_buffer_size(png_structp png_ptr,
1149	png_uint_32 size)
1150	{
1151	if (png_ptr == NULL)
1152	return;
1153	png_free(png_ptr, png_ptr->zbuf);
1154	png_ptr->zbuf_size = (png_size_t)size;
1155	png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, size);
1156	png_ptr->zstream.next_out = png_ptr->zbuf;
1157	png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
1158	}
1159
1160	void PNGAPI
1161	png_set_invalid(png_structp png_ptr, png_infop info_ptr, int mask)
1162	{
1163	if (png_ptr && info_ptr)
1164	info_ptr->valid &= ~mask;
1165	}
1166
1167
1168	#ifndef PNG_1_0_X
1169	#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
1170	/* Function was added to libpng 1.2.0 and should always exist by default */
1171	void PNGAPI
1172	png_set_asm_flags (png_structp png_ptr, png_uint_32 asm_flags)
1173	{
1174	/* Obsolete as of libpng-1.2.20 and will be removed from libpng-1.4.0 */
1175	if (png_ptr != NULL)
1176	png_ptr->asm_flags = 0;
1177	asm_flags = asm_flags; /* Quiet the compiler */
1178	}
1179
1180	/* This function was added to libpng 1.2.0 */
1181	void PNGAPI
1182	png_set_mmx_thresholds (png_structp png_ptr,
1183	png_byte mmx_bitdepth_threshold,
1184	png_uint_32 mmx_rowbytes_threshold)
1185	{
1186	/* Obsolete as of libpng-1.2.20 and will be removed from libpng-1.4.0 */
1187	if (png_ptr == NULL)
1188	return;
1189	/* Quiet the compiler */
1190	mmx_bitdepth_threshold = mmx_bitdepth_threshold;
1191	mmx_rowbytes_threshold = mmx_rowbytes_threshold;
1192	}
1193	#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */
1194
1195	#ifdef PNG_SET_USER_LIMITS_SUPPORTED
1196	/* This function was added to libpng 1.2.6 */
1197	void PNGAPI
1198	png_set_user_limits (png_structp png_ptr, png_uint_32 user_width_max,
1199	png_uint_32 user_height_max)
1200	{
1201	/* Images with dimensions larger than these limits will be
1202	* rejected by png_set_IHDR(). To accept any PNG datastream
1203	* regardless of dimensions, set both limits to 0x7ffffffL.
1204	*/
1205	if (png_ptr == NULL)
1206	return;
1207	png_ptr->user_width_max = user_width_max;
1208	png_ptr->user_height_max = user_height_max;
1209	}
1210	#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */
1211
1212
1213	#ifdef PNG_BENIGN_ERRORS_SUPPORTED
1214	void PNGAPI
1215	png_set_benign_errors(png_structp png_ptr, int allowed)
1216	{
1217	png_debug(1, "in png_set_benign_errors");
1218
1219	if (allowed)
1220	png_ptr->flags \|= PNG_FLAG_BENIGN_ERRORS_WARN;
1221	else
1222	png_ptr->flags &= ~PNG_FLAG_BENIGN_ERRORS_WARN;
1223	}
1224	#endif /* PNG_BENIGN_ERRORS_SUPPORTED */
1225	#endif /* ?PNG_1_0_X */
1226	#endif /* PNG_READ_SUPPORTED \|\| PNG_WRITE_SUPPORTED */

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