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1
2/* pngtest.c - a simple test program to test libpng
3 *
4 * libpng 1.2.7 - September 12, 2004
5 * For conditions of distribution and use, see copyright notice in png.h
6 * Copyright (c) 1998-2004 Glenn Randers-Pehrson
7 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
8 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
9 *
10 * This program reads in a PNG image, writes it out again, and then
11 * compares the two files. If the files are identical, this shows that
12 * the basic chunk handling, filtering, and (de)compression code is working
13 * properly. It does not currently test all of the transforms, although
14 * it probably should.
15 *
16 * The program will report "FAIL" in certain legitimate cases:
17 * 1) when the compression level or filter selection method is changed.
18 * 2) when the maximum IDAT size (PNG_ZBUF_SIZE in pngconf.h) is not 8192.
19 * 3) unknown unsafe-to-copy ancillary chunks or unknown critical chunks
20 * exist in the input file.
21 * 4) others not listed here...
22 * In these cases, it is best to check with another tool such as "pngcheck"
23 * to see what the differences between the two files are.
24 *
25 * If a filename is given on the command-line, then this file is used
26 * for the input, rather than the default "pngtest.png". This allows
27 * testing a wide variety of files easily. You can also test a number
28 * of files at once by typing "pngtest -m file1.png file2.png ..."
29 */
30
31#include "png.h"
32
33#if defined(_WIN32_WCE)
34# if _WIN32_WCE < 211
35 __error__ (f|w)printf functions are not supported on old WindowsCE.;
36# endif
37# include <windows.h>
38# include <stdlib.h>
39# define READFILE(file, data, length, check) \
40 if (ReadFile(file, data, length, &check,NULL)) check = 0
41# define WRITEFILE(file, data, length, check)) \
42 if (WriteFile(file, data, length, &check, NULL)) check = 0
43# define FCLOSE(file) CloseHandle(file)
44#else
45# include <stdio.h>
46# include <stdlib.h>
47# include <assert.h>
48# define READFILE(file, data, length, check) \
49 check=(png_size_t)fread(data,(png_size_t)1,length,file)
50# define WRITEFILE(file, data, length, check) \
51 check=(png_size_t)fwrite(data,(png_size_t)1, length, file)
52# define FCLOSE(file) fclose(file)
53#endif
54
55#if defined(PNG_NO_STDIO)
56# if defined(_WIN32_WCE)
57 typedef HANDLE png_FILE_p;
58# else
59 typedef FILE * png_FILE_p;
60# endif
61#endif
62
63/* Makes pngtest verbose so we can find problems (needs to be before png.h) */
64#ifndef PNG_DEBUG
65# define PNG_DEBUG 0
66#endif
67
68#if !PNG_DEBUG
69# define SINGLE_ROWBUF_ALLOC /* makes buffer overruns easier to nail */
70#endif
71
72/* Turn on CPU timing
73#define PNGTEST_TIMING
74*/
75
76#ifdef PNG_NO_FLOATING_POINT_SUPPORTED
77#undef PNGTEST_TIMING
78#endif
79
80#ifdef PNGTEST_TIMING
81static float t_start, t_stop, t_decode, t_encode, t_misc;
82#include <time.h>
83#endif
84
85/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */
86#ifndef png_jmpbuf
87# define png_jmpbuf(png_ptr) png_ptr->jmpbuf
88#endif
89
90#ifdef PNGTEST_TIMING
91static float t_start, t_stop, t_decode, t_encode, t_misc;
92#if !defined(PNG_tIME_SUPPORTED)
93#include <time.h>
94#endif
95#endif
96
97#if defined(PNG_TIME_RFC1123_SUPPORTED)
98static int tIME_chunk_present=0;
99static char tIME_string[30] = "no tIME chunk present in file";
100#endif
101
102static int verbose = 0;
103
104int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname));
105
106#ifdef __TURBOC__
107#include <mem.h>
108#endif
109
110/* defined so I can write to a file on gui/windowing platforms */
111/* #define STDERR stderr */
112#define STDERR stdout /* for DOS */
113
114/* example of using row callbacks to make a simple progress meter */
115static int status_pass=1;
116static int status_dots_requested=0;
117static int status_dots=1;
118
119void
120#ifdef PNG_1_0_X
121PNGAPI
122#endif
123read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass);
124void
125#ifdef PNG_1_0_X
126PNGAPI
127#endif
128read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
129{
130 if(png_ptr == NULL || row_number > PNG_UINT_31_MAX) return;
131 if(status_pass != pass)
132 {
133 fprintf(stdout,"\n Pass %d: ",pass);
134 status_pass = pass;
135 status_dots = 31;
136 }
137 status_dots--;
138 if(status_dots == 0)
139 {
140 fprintf(stdout, "\n ");
141 status_dots=30;
142 }
143 fprintf(stdout, "r");
144}
145
146void
147#ifdef PNG_1_0_X
148PNGAPI
149#endif
150write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass);
151void
152#ifdef PNG_1_0_X
153PNGAPI
154#endif
155write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
156{
157 if(png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7) return;
158 fprintf(stdout, "w");
159}
160
161
162#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
163/* Example of using user transform callback (we don't transform anything,
164 but merely examine the row filters. We set this to 256 rather than
165 5 in case illegal filter values are present.) */
166static png_uint_32 filters_used[256];
167void
168#ifdef PNG_1_0_X
169PNGAPI
170#endif
171count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data);
172void
173#ifdef PNG_1_0_X
174PNGAPI
175#endif
176count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data)
177{
178 if(png_ptr != NULL && row_info != NULL)
179 ++filters_used[*(data-1)];
180}
181#endif
182
183#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
184/* example of using user transform callback (we don't transform anything,
185 but merely count the zero samples) */
186
187static png_uint_32 zero_samples;
188
189void
190#ifdef PNG_1_0_X
191PNGAPI
192#endif
193count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data);
194void
195#ifdef PNG_1_0_X
196PNGAPI
197#endif
198count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)
199{
200 png_bytep dp = data;
201 if(png_ptr == NULL)return;
202
203 /* contents of row_info:
204 * png_uint_32 width width of row
205 * png_uint_32 rowbytes number of bytes in row
206 * png_byte color_type color type of pixels
207 * png_byte bit_depth bit depth of samples
208 * png_byte channels number of channels (1-4)
209 * png_byte pixel_depth bits per pixel (depth*channels)
210 */
211
212
213 /* counts the number of zero samples (or zero pixels if color_type is 3 */
214
215 if(row_info->color_type == 0 || row_info->color_type == 3)
216 {
217 int pos=0;
218 png_uint_32 n, nstop;
219 for (n=0, nstop=row_info->width; n<nstop; n++)
220 {
221 if(row_info->bit_depth == 1)
222 {
223 if(((*dp << pos++ ) & 0x80) == 0) zero_samples++;
224 if(pos == 8)
225 {
226 pos = 0;
227 dp++;
228 }
229 }
230 if(row_info->bit_depth == 2)
231 {
232 if(((*dp << (pos+=2)) & 0xc0) == 0) zero_samples++;
233 if(pos == 8)
234 {
235 pos = 0;
236 dp++;
237 }
238 }
239 if(row_info->bit_depth == 4)
240 {
241 if(((*dp << (pos+=4)) & 0xf0) == 0) zero_samples++;
242 if(pos == 8)
243 {
244 pos = 0;
245 dp++;
246 }
247 }
248 if(row_info->bit_depth == 8)
249 if(*dp++ == 0) zero_samples++;
250 if(row_info->bit_depth == 16)
251 {
252 if((*dp | *(dp+1)) == 0) zero_samples++;
253 dp+=2;
254 }
255 }
256 }
257 else /* other color types */
258 {
259 png_uint_32 n, nstop;
260 int channel;
261 int color_channels = row_info->channels;
262 if(row_info->color_type > 3)color_channels--;
263
264 for (n=0, nstop=row_info->width; n<nstop; n++)
265 {
266 for (channel = 0; channel < color_channels; channel++)
267 {
268 if(row_info->bit_depth == 8)
269 if(*dp++ == 0) zero_samples++;
270 if(row_info->bit_depth == 16)
271 {
272 if((*dp | *(dp+1)) == 0) zero_samples++;
273 dp+=2;
274 }
275 }
276 if(row_info->color_type > 3)
277 {
278 dp++;
279 if(row_info->bit_depth == 16)dp++;
280 }
281 }
282 }
283}
284#endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */
285
286static int wrote_question = 0;
287
288#if defined(PNG_NO_STDIO)
289/* START of code to validate stdio-free compilation */
290/* These copies of the default read/write functions come from pngrio.c and */
291/* pngwio.c. They allow "don't include stdio" testing of the library. */
292/* This is the function that does the actual reading of data. If you are
293 not reading from a standard C stream, you should create a replacement
294 read_data function and use it at run time with png_set_read_fn(), rather
295 than changing the library. */
296
297#ifndef USE_FAR_KEYWORD
298static void
299pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
300{
301 png_size_t check;
302
303 /* fread() returns 0 on error, so it is OK to store this in a png_size_t
304 * instead of an int, which is what fread() actually returns.
305 */
306 READFILE((png_FILE_p)png_ptr->io_ptr, data, length, check);
307
308 if (check != length)
309 {
310 png_error(png_ptr, "Read Error!");
311 }
312}
313#else
314/* this is the model-independent version. Since the standard I/O library
315 can't handle far buffers in the medium and small models, we have to copy
316 the data.
317*/
318
319#define NEAR_BUF_SIZE 1024
320#define MIN(a,b) (a <= b ? a : b)
321
322static void
323pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
324{
325 int check;
326 png_byte *n_data;
327 png_FILE_p io_ptr;
328
329 /* Check if data really is near. If so, use usual code. */
330 n_data = (png_byte *)CVT_PTR_NOCHECK(data);
331 io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
332 if ((png_bytep)n_data == data)
333 {
334 READFILE(io_ptr, n_data, length, check);
335 }
336 else
337 {
338 png_byte buf[NEAR_BUF_SIZE];
339 png_size_t read, remaining, err;
340 check = 0;
341 remaining = length;
342 do
343 {
344 read = MIN(NEAR_BUF_SIZE, remaining);
345 READFILE(io_ptr, buf, 1, err);
346 png_memcpy(data, buf, read); /* copy far buffer to near buffer */
347 if(err != read)
348 break;
349 else
350 check += err;
351 data += read;
352 remaining -= read;
353 }
354 while (remaining != 0);
355 }
356 if (check != length)
357 {
358 png_error(png_ptr, "read Error");
359 }
360}
361#endif /* USE_FAR_KEYWORD */
362
363#if defined(PNG_WRITE_FLUSH_SUPPORTED)
364static void
365pngtest_flush(png_structp png_ptr)
366{
367#if !defined(_WIN32_WCE)
368 png_FILE_p io_ptr;
369 io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr));
370 if (io_ptr != NULL)
371 fflush(io_ptr);
372#endif
373}
374#endif
375
376/* This is the function that does the actual writing of data. If you are
377 not writing to a standard C stream, you should create a replacement
378 write_data function and use it at run time with png_set_write_fn(), rather
379 than changing the library. */
380#ifndef USE_FAR_KEYWORD
381static void
382pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
383{
384 png_uint_32 check;
385
386 WRITEFILE((png_FILE_p)png_ptr->io_ptr, data, length, check);
387 if (check != length)
388 {
389 png_error(png_ptr, "Write Error");
390 }
391}
392#else
393/* this is the model-independent version. Since the standard I/O library
394 can't handle far buffers in the medium and small models, we have to copy
395 the data.
396*/
397
398#define NEAR_BUF_SIZE 1024
399#define MIN(a,b) (a <= b ? a : b)
400
401static void
402pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
403{
404 png_uint_32 check;
405 png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */
406 png_FILE_p io_ptr;
407
408 /* Check if data really is near. If so, use usual code. */
409 near_data = (png_byte *)CVT_PTR_NOCHECK(data);
410 io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
411 if ((png_bytep)near_data == data)
412 {
413 WRITEFILE(io_ptr, near_data, length, check);
414 }
415 else
416 {
417 png_byte buf[NEAR_BUF_SIZE];
418 png_size_t written, remaining, err;
419 check = 0;
420 remaining = length;
421 do
422 {
423 written = MIN(NEAR_BUF_SIZE, remaining);
424 png_memcpy(buf, data, written); /* copy far buffer to near buffer */
425 WRITEFILE(io_ptr, buf, written, err);
426 if (err != written)
427 break;
428 else
429 check += err;
430 data += written;
431 remaining -= written;
432 }
433 while (remaining != 0);
434 }
435 if (check != length)
436 {
437 png_error(png_ptr, "Write Error");
438 }
439}
440
441#endif /* USE_FAR_KEYWORD */
442
443/* This function is called when there is a warning, but the library thinks
444 * it can continue anyway. Replacement functions don't have to do anything
445 * here if you don't want to. In the default configuration, png_ptr is
446 * not used, but it is passed in case it may be useful.
447 */
448static void
449pngtest_warning(png_structp png_ptr, png_const_charp message)
450{
451 PNG_CONST char *name = "UNKNOWN (ERROR!)";
452 if (png_ptr != NULL && png_ptr->error_ptr != NULL)
453 name = png_ptr->error_ptr;
454 fprintf(STDERR, "%s: libpng warning: %s\n", name, message);
455}
456
457/* This is the default error handling function. Note that replacements for
458 * this function MUST NOT RETURN, or the program will likely crash. This
459 * function is used by default, or if the program supplies NULL for the
460 * error function pointer in png_set_error_fn().
461 */
462static void
463pngtest_error(png_structp png_ptr, png_const_charp message)
464{
465 pngtest_warning(png_ptr, message);
466 /* We can return because png_error calls the default handler, which is
467 * actually OK in this case. */
468}
469#endif /* PNG_NO_STDIO */
470/* END of code to validate stdio-free compilation */
471
472/* START of code to validate memory allocation and deallocation */
473#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
474
475/* Allocate memory. For reasonable files, size should never exceed
476 64K. However, zlib may allocate more then 64K if you don't tell
477 it not to. See zconf.h and png.h for more information. zlib does
478 need to allocate exactly 64K, so whatever you call here must
479 have the ability to do that.
480
481 This piece of code can be compiled to validate max 64K allocations
482 by setting MAXSEG_64K in zlib zconf.h *or* PNG_MAX_MALLOC_64K. */
483typedef struct memory_information
484{
485 png_uint_32 size;
486 png_voidp pointer;
487 struct memory_information FAR *next;
488} memory_information;
489typedef memory_information FAR *memory_infop;
490
491static memory_infop pinformation = NULL;
492static int current_allocation = 0;
493static int maximum_allocation = 0;
494static int total_allocation = 0;
495static int num_allocations = 0;
496
497png_voidp png_debug_malloc PNGARG((png_structp png_ptr, png_uint_32 size));
498void png_debug_free PNGARG((png_structp png_ptr, png_voidp ptr));
499
500png_voidp
501png_debug_malloc(png_structp png_ptr, png_uint_32 size)
502{
503
504 /* png_malloc has already tested for NULL; png_create_struct calls
505 png_debug_malloc directly, with png_ptr == NULL which is OK */
506
507 if (size == 0)
508 return (NULL);
509
510 /* This calls the library allocator twice, once to get the requested
511 buffer and once to get a new free list entry. */
512 {
513 /* Disable malloc_fn and free_fn */
514 memory_infop pinfo;
515 png_set_mem_fn(png_ptr, NULL, NULL, NULL);
516 pinfo = (memory_infop)png_malloc(png_ptr,
517 (png_uint_32)png_sizeof (*pinfo));
518 pinfo->size = size;
519 current_allocation += size;
520 total_allocation += size;
521 num_allocations ++;
522 if (current_allocation > maximum_allocation)
523 maximum_allocation = current_allocation;
524 pinfo->pointer = (png_voidp)png_malloc(png_ptr, size);
525 /* Restore malloc_fn and free_fn */
526 png_set_mem_fn(png_ptr, png_voidp_NULL, (png_malloc_ptr)png_debug_malloc,
527 (png_free_ptr)png_debug_free);
528 if (size != 0 && pinfo->pointer == NULL)
529 {
530 current_allocation -= size;
531 total_allocation -= size;
532 png_error(png_ptr,
533 "out of memory in pngtest->png_debug_malloc.");
534 }
535 pinfo->next = pinformation;
536 pinformation = pinfo;
537 /* Make sure the caller isn't assuming zeroed memory. */
538 png_memset(pinfo->pointer, 0xdd, pinfo->size);
539 if(verbose)
540 printf("png_malloc %lu bytes at %x\n",size,pinfo->pointer);
541 assert(pinfo->size != 12345678);
542 return (png_voidp)(pinfo->pointer);
543 }
544}
545
546/* Free a pointer. It is removed from the list at the same time. */
547void
548png_debug_free(png_structp png_ptr, png_voidp ptr)
549{
550 if (png_ptr == NULL)
551 fprintf(STDERR, "NULL pointer to png_debug_free.\n");
552 if (ptr == 0)
553 {
554#if 0 /* This happens all the time. */
555 fprintf(STDERR, "WARNING: freeing NULL pointer\n");
556#endif
557 return;
558 }
559
560 /* Unlink the element from the list. */
561 {
562 memory_infop FAR *ppinfo = &pinformation;
563 for (;;)
564 {
565 memory_infop pinfo = *ppinfo;
566 if (pinfo->pointer == ptr)
567 {
568 *ppinfo = pinfo->next;
569 current_allocation -= pinfo->size;
570 if (current_allocation < 0)
571 fprintf(STDERR, "Duplicate free of memory\n");
572 /* We must free the list element too, but first kill
573 the memory that is to be freed. */
574 png_memset(ptr, 0x55, pinfo->size);
575 png_free_default(png_ptr, pinfo);
576 pinfo=NULL;
577 break;
578 }
579 if (pinfo->next == NULL)
580 {
581 fprintf(STDERR, "Pointer %x not found\n", (unsigned int)ptr);
582 break;
583 }
584 ppinfo = &pinfo->next;
585 }
586 }
587
588 /* Finally free the data. */
589 if(verbose)
590 printf("Freeing %x\n",ptr);
591 png_free_default(png_ptr, ptr);
592 ptr=NULL;
593}
594#endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */
595/* END of code to test memory allocation/deallocation */
596
597/* Test one file */
598int
599test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
600{
601 static png_FILE_p fpin;
602 static png_FILE_p fpout; /* "static" prevents setjmp corruption */
603 png_structp read_ptr;
604 png_infop read_info_ptr, end_info_ptr;
605#ifdef PNG_WRITE_SUPPORTED
606 png_structp write_ptr;
607 png_infop write_info_ptr;
608 png_infop write_end_info_ptr;
609#else
610 png_structp write_ptr = NULL;
611 png_infop write_info_ptr = NULL;
612 png_infop write_end_info_ptr = NULL;
613#endif
614 png_bytep row_buf;
615 png_uint_32 y;
616 png_uint_32 width, height;
617 int num_pass, pass;
618 int bit_depth, color_type;
619#ifdef PNG_SETJMP_SUPPORTED
620#ifdef USE_FAR_KEYWORD
621 jmp_buf jmpbuf;
622#endif
623#endif
624
625#if defined(_WIN32_WCE)
626 TCHAR path[MAX_PATH];
627#endif
628 char inbuf[256], outbuf[256];
629
630 row_buf = NULL;
631
632#if defined(_WIN32_WCE)
633 MultiByteToWideChar(CP_ACP, 0, inname, -1, path, MAX_PATH);
634 if ((fpin = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE)
635#else
636 if ((fpin = fopen(inname, "rb")) == NULL)
637#endif
638 {
639 fprintf(STDERR, "Could not find input file %s\n", inname);
640 return (1);
641 }
642
643#if defined(_WIN32_WCE)
644 MultiByteToWideChar(CP_ACP, 0, outname, -1, path, MAX_PATH);
645 if ((fpout = CreateFile(path, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL)) == INVALID_HANDLE_VALUE)
646#else
647 if ((fpout = fopen(outname, "wb")) == NULL)
648#endif
649 {
650 fprintf(STDERR, "Could not open output file %s\n", outname);
651 FCLOSE(fpin);
652 return (1);
653 }
654
655 png_debug(0, "Allocating read and write structures\n");
656#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
657 read_ptr = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
658 png_error_ptr_NULL, png_error_ptr_NULL, png_voidp_NULL,
659 (png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free);
660#else
661 read_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
662 png_error_ptr_NULL, png_error_ptr_NULL);
663#endif
664#if defined(PNG_NO_STDIO)
665 png_set_error_fn(read_ptr, (png_voidp)inname, pngtest_error,
666 pngtest_warning);
667#endif
668#ifdef PNG_WRITE_SUPPORTED
669#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
670 write_ptr = png_create_write_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
671 png_error_ptr_NULL, png_error_ptr_NULL, png_voidp_NULL,
672 (png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free);
673#else
674 write_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
675 png_error_ptr_NULL, png_error_ptr_NULL);
676#endif
677#if defined(PNG_NO_STDIO)
678 png_set_error_fn(write_ptr, (png_voidp)inname, pngtest_error,
679 pngtest_warning);
680#endif
681#endif
682 png_debug(0, "Allocating read_info, write_info and end_info structures\n");
683 read_info_ptr = png_create_info_struct(read_ptr);
684 end_info_ptr = png_create_info_struct(read_ptr);
685#ifdef PNG_WRITE_SUPPORTED
686 write_info_ptr = png_create_info_struct(write_ptr);
687 write_end_info_ptr = png_create_info_struct(write_ptr);
688#endif
689
690#ifdef PNG_SETJMP_SUPPORTED
691 png_debug(0, "Setting jmpbuf for read struct\n");
692#ifdef USE_FAR_KEYWORD
693 if (setjmp(jmpbuf))
694#else
695 if (setjmp(png_jmpbuf(read_ptr)))
696#endif
697 {
698 fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname);
699 if (row_buf)
700 png_free(read_ptr, row_buf);
701 png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
702#ifdef PNG_WRITE_SUPPORTED
703 png_destroy_info_struct(write_ptr, &write_end_info_ptr);
704 png_destroy_write_struct(&write_ptr, &write_info_ptr);
705#endif
706 FCLOSE(fpin);
707 FCLOSE(fpout);
708 return (1);
709 }
710#ifdef USE_FAR_KEYWORD
711 png_memcpy(png_jmpbuf(read_ptr),jmpbuf,png_sizeof(jmp_buf));
712#endif
713
714#ifdef PNG_WRITE_SUPPORTED
715 png_debug(0, "Setting jmpbuf for write struct\n");
716#ifdef USE_FAR_KEYWORD
717 if (setjmp(jmpbuf))
718#else
719 if (setjmp(png_jmpbuf(write_ptr)))
720#endif
721 {
722 fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname);
723 png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
724 png_destroy_info_struct(write_ptr, &write_end_info_ptr);
725#ifdef PNG_WRITE_SUPPORTED
726 png_destroy_write_struct(&write_ptr, &write_info_ptr);
727#endif
728 FCLOSE(fpin);
729 FCLOSE(fpout);
730 return (1);
731 }
732#ifdef USE_FAR_KEYWORD
733 png_memcpy(png_jmpbuf(write_ptr),jmpbuf,png_sizeof(jmp_buf));
734#endif
735#endif
736#endif
737
738 png_debug(0, "Initializing input and output streams\n");
739#if !defined(PNG_NO_STDIO)
740 png_init_io(read_ptr, fpin);
741# ifdef PNG_WRITE_SUPPORTED
742 png_init_io(write_ptr, fpout);
743# endif
744#else
745 png_set_read_fn(read_ptr, (png_voidp)fpin, pngtest_read_data);
746# ifdef PNG_WRITE_SUPPORTED
747 png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data,
748# if defined(PNG_WRITE_FLUSH_SUPPORTED)
749 pngtest_flush);
750# else
751 NULL);
752# endif
753# endif
754#endif
755 if(status_dots_requested == 1)
756 {
757#ifdef PNG_WRITE_SUPPORTED
758 png_set_write_status_fn(write_ptr, write_row_callback);
759#endif
760 png_set_read_status_fn(read_ptr, read_row_callback);
761 }
762 else
763 {
764#ifdef PNG_WRITE_SUPPORTED
765 png_set_write_status_fn(write_ptr, png_write_status_ptr_NULL);
766#endif
767 png_set_read_status_fn(read_ptr, png_read_status_ptr_NULL);
768 }
769
770#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
771 {
772 int i;
773 for(i=0; i<256; i++)
774 filters_used[i]=0;
775 png_set_read_user_transform_fn(read_ptr, count_filters);
776 }
777#endif
778#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
779 zero_samples=0;
780 png_set_write_user_transform_fn(write_ptr, count_zero_samples);
781#endif
782
783#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
784# ifndef PNG_HANDLE_CHUNK_ALWAYS
785# define PNG_HANDLE_CHUNK_ALWAYS 3
786# endif
787 png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS,
788 png_bytep_NULL, 0);
789#endif
790#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED)
791# ifndef PNG_HANDLE_CHUNK_IF_SAFE
792# define PNG_HANDLE_CHUNK_IF_SAFE 2
793# endif
794 png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_IF_SAFE,
795 png_bytep_NULL, 0);
796#endif
797
798 png_debug(0, "Reading info struct\n");
799 png_read_info(read_ptr, read_info_ptr);
800
801 png_debug(0, "Transferring info struct\n");
802 {
803 int interlace_type, compression_type, filter_type;
804
805 if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth,
806 &color_type, &interlace_type, &compression_type, &filter_type))
807 {
808 png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth,
809#if defined(PNG_WRITE_INTERLACING_SUPPORTED)
810 color_type, interlace_type, compression_type, filter_type);
811#else
812 color_type, PNG_INTERLACE_NONE, compression_type, filter_type);
813#endif
814 }
815 }
816#if defined(PNG_FIXED_POINT_SUPPORTED)
817#if defined(PNG_cHRM_SUPPORTED)
818 {
819 png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x,
820 blue_y;
821 if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y, &red_x,
822 &red_y, &green_x, &green_y, &blue_x, &blue_y))
823 {
824 png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x,
825 red_y, green_x, green_y, blue_x, blue_y);
826 }
827 }
828#endif
829#if defined(PNG_gAMA_SUPPORTED)
830 {
831 png_fixed_point gamma;
832
833 if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma))
834 {
835 png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma);
836 }
837 }
838#endif
839#else /* Use floating point versions */
840#if defined(PNG_FLOATING_POINT_SUPPORTED)
841#if defined(PNG_cHRM_SUPPORTED)
842 {
843 double white_x, white_y, red_x, red_y, green_x, green_y, blue_x,
844 blue_y;
845 if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x,
846 &red_y, &green_x, &green_y, &blue_x, &blue_y))
847 {
848 png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x,
849 red_y, green_x, green_y, blue_x, blue_y);
850 }
851 }
852#endif
853#if defined(PNG_gAMA_SUPPORTED)
854 {
855 double gamma;
856
857 if (png_get_gAMA(read_ptr, read_info_ptr, &gamma))
858 {
859 png_set_gAMA(write_ptr, write_info_ptr, gamma);
860 }
861 }
862#endif
863#endif /* floating point */
864#endif /* fixed point */
865#if defined(PNG_iCCP_SUPPORTED)
866 {
867 png_charp name;
868 png_charp profile;
869 png_uint_32 proflen;
870 int compression_type;
871
872 if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type,
873 &profile, &proflen))
874 {
875 png_set_iCCP(write_ptr, write_info_ptr, name, compression_type,
876 profile, proflen);
877 }
878 }
879#endif
880#if defined(PNG_sRGB_SUPPORTED)
881 {
882 int intent;
883
884 if (png_get_sRGB(read_ptr, read_info_ptr, &intent))
885 {
886 png_set_sRGB(write_ptr, write_info_ptr, intent);
887 }
888 }
889#endif
890 {
891 png_colorp palette;
892 int num_palette;
893
894 if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette))
895 {
896 png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette);
897 }
898 }
899#if defined(PNG_bKGD_SUPPORTED)
900 {
901 png_color_16p background;
902
903 if (png_get_bKGD(read_ptr, read_info_ptr, &background))
904 {
905 png_set_bKGD(write_ptr, write_info_ptr, background);
906 }
907 }
908#endif
909#if defined(PNG_hIST_SUPPORTED)
910 {
911 png_uint_16p hist;
912
913 if (png_get_hIST(read_ptr, read_info_ptr, &hist))
914 {
915 png_set_hIST(write_ptr, write_info_ptr, hist);
916 }
917 }
918#endif
919#if defined(PNG_oFFs_SUPPORTED)
920 {
921 png_int_32 offset_x, offset_y;
922 int unit_type;
923
924 if (png_get_oFFs(read_ptr, read_info_ptr,&offset_x,&offset_y,&unit_type))
925 {
926 png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type);
927 }
928 }
929#endif
930#if defined(PNG_pCAL_SUPPORTED)
931 {
932 png_charp purpose, units;
933 png_charpp params;
934 png_int_32 X0, X1;
935 int type, nparams;
936
937 if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type,
938 &nparams, &units, &params))
939 {
940 png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type,
941 nparams, units, params);
942 }
943 }
944#endif
945#if defined(PNG_pHYs_SUPPORTED)
946 {
947 png_uint_32 res_x, res_y;
948 int unit_type;
949
950 if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type))
951 {
952 png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type);
953 }
954 }
955#endif
956#if defined(PNG_sBIT_SUPPORTED)
957 {
958 png_color_8p sig_bit;
959
960 if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit))
961 {
962 png_set_sBIT(write_ptr, write_info_ptr, sig_bit);
963 }
964 }
965#endif
966#if defined(PNG_sCAL_SUPPORTED)
967#ifdef PNG_FLOATING_POINT_SUPPORTED
968 {
969 int unit;
970 double scal_width, scal_height;
971
972 if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width,
973 &scal_height))
974 {
975 png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height);
976 }
977 }
978#else
979#ifdef PNG_FIXED_POINT_SUPPORTED
980 {
981 int unit;
982 png_charp scal_width, scal_height;
983
984 if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width,
985 &scal_height))
986 {
987 png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, scal_height);
988 }
989 }
990#endif
991#endif
992#endif
993#if defined(PNG_TEXT_SUPPORTED)
994 {
995 png_textp text_ptr;
996 int num_text;
997
998 if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0)
999 {
1000 png_debug1(0, "Handling %d iTXt/tEXt/zTXt chunks\n", num_text);
1001 png_set_text(write_ptr, write_info_ptr, text_ptr, num_text);
1002 }
1003 }
1004#endif
1005#if defined(PNG_tIME_SUPPORTED)
1006 {
1007 png_timep mod_time;
1008
1009 if (png_get_tIME(read_ptr, read_info_ptr, &mod_time))
1010 {
1011 png_set_tIME(write_ptr, write_info_ptr, mod_time);
1012#if defined(PNG_TIME_RFC1123_SUPPORTED)
1013 /* we have to use png_strcpy instead of "=" because the string
1014 pointed to by png_convert_to_rfc1123() gets free'ed before
1015 we use it */
1016 png_strcpy(tIME_string,png_convert_to_rfc1123(read_ptr, mod_time));
1017 tIME_chunk_present++;
1018#endif /* PNG_TIME_RFC1123_SUPPORTED */
1019 }
1020 }
1021#endif
1022#if defined(PNG_tRNS_SUPPORTED)
1023 {
1024 png_bytep trans;
1025 int num_trans;
1026 png_color_16p trans_values;
1027
1028 if (png_get_tRNS(read_ptr, read_info_ptr, &trans, &num_trans,
1029 &trans_values))
1030 {
1031 png_set_tRNS(write_ptr, write_info_ptr, trans, num_trans,
1032 trans_values);
1033 }
1034 }
1035#endif
1036#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED)
1037 {
1038 png_unknown_chunkp unknowns;
1039 int num_unknowns = (int)png_get_unknown_chunks(read_ptr, read_info_ptr,
1040 &unknowns);
1041 if (num_unknowns)
1042 {
1043 png_size_t i;
1044 png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns,
1045 num_unknowns);
1046 /* copy the locations from the read_info_ptr. The automatically
1047 generated locations in write_info_ptr are wrong because we
1048 haven't written anything yet */
1049 for (i = 0; i < (png_size_t)num_unknowns; i++)
1050 png_set_unknown_chunk_location(write_ptr, write_info_ptr, i,
1051 unknowns[i].location);
1052 }
1053 }
1054#endif
1055
1056#ifdef PNG_WRITE_SUPPORTED
1057 png_debug(0, "\nWriting info struct\n");
1058
1059/* If we wanted, we could write info in two steps:
1060 png_write_info_before_PLTE(write_ptr, write_info_ptr);
1061 */
1062 png_write_info(write_ptr, write_info_ptr);
1063#endif
1064
1065#ifdef SINGLE_ROWBUF_ALLOC
1066 png_debug(0, "\nAllocating row buffer...");
1067 row_buf = (png_bytep)png_malloc(read_ptr,
1068 png_get_rowbytes(read_ptr, read_info_ptr));
1069 png_debug1(0, "0x%08lx\n\n", (unsigned long)row_buf);
1070#endif /* SINGLE_ROWBUF_ALLOC */
1071 png_debug(0, "Writing row data\n");
1072
1073#if defined(PNG_READ_INTERLACING_SUPPORTED) || \
1074 defined(PNG_WRITE_INTERLACING_SUPPORTED)
1075 num_pass = png_set_interlace_handling(read_ptr);
1076# ifdef PNG_WRITE_SUPPORTED
1077 png_set_interlace_handling(write_ptr);
1078# endif
1079#else
1080 num_pass=1;
1081#endif
1082
1083#ifdef PNGTEST_TIMING
1084 t_stop = (float)clock();
1085 t_misc += (t_stop - t_start);
1086 t_start = t_stop;
1087#endif
1088 for (pass = 0; pass < num_pass; pass++)
1089 {
1090 png_debug1(0, "Writing row data for pass %d\n",pass);
1091 for (y = 0; y < height; y++)
1092 {
1093#ifndef SINGLE_ROWBUF_ALLOC
1094 png_debug2(0, "\nAllocating row buffer (pass %d, y = %ld)...", pass,y);
1095 row_buf = (png_bytep)png_malloc(read_ptr,
1096 png_get_rowbytes(read_ptr, read_info_ptr));
1097 png_debug2(0, "0x%08lx (%ld bytes)\n", (unsigned long)row_buf,
1098 png_get_rowbytes(read_ptr, read_info_ptr));
1099#endif /* !SINGLE_ROWBUF_ALLOC */
1100 png_read_rows(read_ptr, (png_bytepp)&row_buf, png_bytepp_NULL, 1);
1101
1102#ifdef PNG_WRITE_SUPPORTED
1103#ifdef PNGTEST_TIMING
1104 t_stop = (float)clock();
1105 t_decode += (t_stop - t_start);
1106 t_start = t_stop;
1107#endif
1108 png_write_rows(write_ptr, (png_bytepp)&row_buf, 1);
1109#ifdef PNGTEST_TIMING
1110 t_stop = (float)clock();
1111 t_encode += (t_stop - t_start);
1112 t_start = t_stop;
1113#endif
1114#endif /* PNG_WRITE_SUPPORTED */
1115
1116#ifndef SINGLE_ROWBUF_ALLOC
1117 png_debug2(0, "Freeing row buffer (pass %d, y = %ld)\n\n", pass, y);
1118 png_free(read_ptr, row_buf);
1119#endif /* !SINGLE_ROWBUF_ALLOC */
1120 }
1121 }
1122
1123#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
1124 png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1);
1125#endif
1126#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED)
1127 png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1);
1128#endif
1129
1130 png_debug(0, "Reading and writing end_info data\n");
1131
1132 png_read_end(read_ptr, end_info_ptr);
1133#if defined(PNG_TEXT_SUPPORTED)
1134 {
1135 png_textp text_ptr;
1136 int num_text;
1137
1138 if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0)
1139 {
1140 png_debug1(0, "Handling %d iTXt/tEXt/zTXt chunks\n", num_text);
1141 png_set_text(write_ptr, write_end_info_ptr, text_ptr, num_text);
1142 }
1143 }
1144#endif
1145#if defined(PNG_tIME_SUPPORTED)
1146 {
1147 png_timep mod_time;
1148
1149 if (png_get_tIME(read_ptr, end_info_ptr, &mod_time))
1150 {
1151 png_set_tIME(write_ptr, write_end_info_ptr, mod_time);
1152#if defined(PNG_TIME_RFC1123_SUPPORTED)
1153 /* we have to use png_strcpy instead of "=" because the string
1154 pointed to by png_convert_to_rfc1123() gets free'ed before
1155 we use it */
1156 png_strcpy(tIME_string,png_convert_to_rfc1123(read_ptr, mod_time));
1157 tIME_chunk_present++;
1158#endif /* PNG_TIME_RFC1123_SUPPORTED */
1159 }
1160 }
1161#endif
1162#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED)
1163 {
1164 png_unknown_chunkp unknowns;
1165 int num_unknowns;
1166 num_unknowns = (int)png_get_unknown_chunks(read_ptr, end_info_ptr,
1167 &unknowns);
1168 if (num_unknowns)
1169 {
1170 png_size_t i;
1171 png_set_unknown_chunks(write_ptr, write_end_info_ptr, unknowns,
1172 num_unknowns);
1173 /* copy the locations from the read_info_ptr. The automatically
1174 generated locations in write_end_info_ptr are wrong because we
1175 haven't written the end_info yet */
1176 for (i = 0; i < (png_size_t)num_unknowns; i++)
1177 png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i,
1178 unknowns[i].location);
1179 }
1180 }
1181#endif
1182#ifdef PNG_WRITE_SUPPORTED
1183 png_write_end(write_ptr, write_end_info_ptr);
1184#endif
1185
1186#ifdef PNG_EASY_ACCESS_SUPPORTED
1187 if(verbose)
1188 {
1189 png_uint_32 iwidth, iheight;
1190 iwidth = png_get_image_width(write_ptr, write_info_ptr);
1191 iheight = png_get_image_height(write_ptr, write_info_ptr);
1192 fprintf(STDERR, "Image width = %lu, height = %lu\n",
1193 iwidth, iheight);
1194 }
1195#endif
1196
1197 png_debug(0, "Destroying data structs\n");
1198#ifdef SINGLE_ROWBUF_ALLOC
1199 png_debug(1, "destroying row_buf for read_ptr\n");
1200 png_free(read_ptr, row_buf);
1201 row_buf=NULL;
1202#endif /* SINGLE_ROWBUF_ALLOC */
1203 png_debug(1, "destroying read_ptr, read_info_ptr, end_info_ptr\n");
1204 png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
1205#ifdef PNG_WRITE_SUPPORTED
1206 png_debug(1, "destroying write_end_info_ptr\n");
1207 png_destroy_info_struct(write_ptr, &write_end_info_ptr);
1208 png_debug(1, "destroying write_ptr, write_info_ptr\n");
1209 png_destroy_write_struct(&write_ptr, &write_info_ptr);
1210#endif
1211 png_debug(0, "Destruction complete.\n");
1212
1213 FCLOSE(fpin);
1214 FCLOSE(fpout);
1215
1216 png_debug(0, "Opening files for comparison\n");
1217#if defined(_WIN32_WCE)
1218 MultiByteToWideChar(CP_ACP, 0, inname, -1, path, MAX_PATH);
1219 if ((fpin = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE)
1220#else
1221 if ((fpin = fopen(inname, "rb")) == NULL)
1222#endif
1223 {
1224 fprintf(STDERR, "Could not find file %s\n", inname);
1225 return (1);
1226 }
1227
1228#if defined(_WIN32_WCE)
1229 MultiByteToWideChar(CP_ACP, 0, outname, -1, path, MAX_PATH);
1230 if ((fpout = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE)
1231#else
1232 if ((fpout = fopen(outname, "rb")) == NULL)
1233#endif
1234 {
1235 fprintf(STDERR, "Could not find file %s\n", outname);
1236 FCLOSE(fpin);
1237 return (1);
1238 }
1239
1240 for(;;)
1241 {
1242 png_size_t num_in, num_out;
1243
1244 READFILE(fpin, inbuf, 1, num_in);
1245 READFILE(fpout, outbuf, 1, num_out);
1246
1247 if (num_in != num_out)
1248 {
1249 fprintf(STDERR, "\nFiles %s and %s are of a different size\n",
1250 inname, outname);
1251 if(wrote_question == 0)
1252 {
1253 fprintf(STDERR,
1254 " Was %s written with the same maximum IDAT chunk size (%d bytes),",
1255 inname,PNG_ZBUF_SIZE);
1256 fprintf(STDERR,
1257 "\n filtering heuristic (libpng default), compression");
1258 fprintf(STDERR,
1259 " level (zlib default),\n and zlib version (%s)?\n\n",
1260 ZLIB_VERSION);
1261 wrote_question=1;
1262 }
1263 FCLOSE(fpin);
1264 FCLOSE(fpout);
1265 return (0);
1266 }
1267
1268 if (!num_in)
1269 break;
1270
1271 if (png_memcmp(inbuf, outbuf, num_in))
1272 {
1273 fprintf(STDERR, "\nFiles %s and %s are different\n", inname, outname);
1274 if(wrote_question == 0)
1275 {
1276 fprintf(STDERR,
1277 " Was %s written with the same maximum IDAT chunk size (%d bytes),",
1278 inname,PNG_ZBUF_SIZE);
1279 fprintf(STDERR,
1280 "\n filtering heuristic (libpng default), compression");
1281 fprintf(STDERR,
1282 " level (zlib default),\n and zlib version (%s)?\n\n",
1283 ZLIB_VERSION);
1284 wrote_question=1;
1285 }
1286 FCLOSE(fpin);
1287 FCLOSE(fpout);
1288 return (0);
1289 }
1290 }
1291
1292 FCLOSE(fpin);
1293 FCLOSE(fpout);
1294
1295 return (0);
1296}
1297
1298/* input and output filenames */
1299#ifdef RISCOS
1300static PNG_CONST char *inname = "pngtest/png";
1301static PNG_CONST char *outname = "pngout/png";
1302#else
1303static PNG_CONST char *inname = "pngtest.png";
1304static PNG_CONST char *outname = "pngout.png";
1305#endif
1306
1307int
1308main(int argc, char *argv[])
1309{
1310 int multiple = 0;
1311 int ierror = 0;
1312
1313 fprintf(STDERR, "Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);
1314 fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION);
1315 fprintf(STDERR,"%s",png_get_copyright(NULL));
1316 /* Show the version of libpng used in building the library */
1317 fprintf(STDERR," library (%lu):%s", png_access_version_number(),
1318 png_get_header_version(NULL));
1319 /* Show the version of libpng used in building the application */
1320 fprintf(STDERR," pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER,
1321 PNG_HEADER_VERSION_STRING);
1322 fprintf(STDERR," png_sizeof(png_struct)=%ld, png_sizeof(png_info)=%ld\n",
1323 (long)png_sizeof(png_struct), (long)png_sizeof(png_info));
1324
1325 /* Do some consistency checking on the memory allocation settings, I'm
1326 not sure this matters, but it is nice to know, the first of these
1327 tests should be impossible because of the way the macros are set
1328 in pngconf.h */
1329#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
1330 fprintf(STDERR, " NOTE: Zlib compiled for max 64k, libpng not\n");
1331#endif
1332 /* I think the following can happen. */
1333#if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K)
1334 fprintf(STDERR, " NOTE: libpng compiled for max 64k, zlib not\n");
1335#endif
1336
1337 if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING))
1338 {
1339 fprintf(STDERR,
1340 "Warning: versions are different between png.h and png.c\n");
1341 fprintf(STDERR, " png.h version: %s\n", PNG_LIBPNG_VER_STRING);
1342 fprintf(STDERR, " png.c version: %s\n\n", png_libpng_ver);
1343 ++ierror;
1344 }
1345
1346 if (argc > 1)
1347 {
1348 if (strcmp(argv[1], "-m") == 0)
1349 {
1350 multiple = 1;
1351 status_dots_requested = 0;
1352 }
1353 else if (strcmp(argv[1], "-mv") == 0 ||
1354 strcmp(argv[1], "-vm") == 0 )
1355 {
1356 multiple = 1;
1357 verbose = 1;
1358 status_dots_requested = 1;
1359 }
1360 else if (strcmp(argv[1], "-v") == 0)
1361 {
1362 verbose = 1;
1363 status_dots_requested = 1;
1364 inname = argv[2];
1365 }
1366 else
1367 {
1368 inname = argv[1];
1369 status_dots_requested = 0;
1370 }
1371 }
1372
1373 if (!multiple && argc == 3+verbose)
1374 outname = argv[2+verbose];
1375
1376 if ((!multiple && argc > 3+verbose) || (multiple && argc < 2))
1377 {
1378 fprintf(STDERR,
1379 "usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n",
1380 argv[0], argv[0]);
1381 fprintf(STDERR,
1382 " reads/writes one PNG file (without -m) or multiple files (-m)\n");
1383 fprintf(STDERR,
1384 " with -m %s is used as a temporary file\n", outname);
1385 exit(1);
1386 }
1387
1388 if (multiple)
1389 {
1390 int i;
1391#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1392 int allocation_now = current_allocation;
1393#endif
1394 for (i=2; i<argc; ++i)
1395 {
1396#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
1397 int k;
1398#endif
1399 int kerror;
1400 fprintf(STDERR, "Testing %s:",argv[i]);
1401 kerror = test_one_file(argv[i], outname);
1402 if (kerror == 0)
1403 {
1404#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
1405 fprintf(STDERR, "\n PASS (%lu zero samples)\n",zero_samples);
1406#else
1407 fprintf(STDERR, " PASS\n");
1408#endif
1409#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
1410 for (k=0; k<256; k++)
1411 if(filters_used[k])
1412 fprintf(STDERR, " Filter %d was used %lu times\n",
1413 k,filters_used[k]);
1414#endif
1415#if defined(PNG_TIME_RFC1123_SUPPORTED)
1416 if(tIME_chunk_present != 0)
1417 fprintf(STDERR, " tIME = %s\n",tIME_string);
1418 tIME_chunk_present = 0;
1419#endif /* PNG_TIME_RFC1123_SUPPORTED */
1420 }
1421 else
1422 {
1423 fprintf(STDERR, " FAIL\n");
1424 ierror += kerror;
1425 }
1426#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1427 if (allocation_now != current_allocation)
1428 fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
1429 current_allocation-allocation_now);
1430 if (current_allocation != 0)
1431 {
1432 memory_infop pinfo = pinformation;
1433
1434 fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",
1435 current_allocation);
1436 while (pinfo != NULL)
1437 {
1438 fprintf(STDERR, " %lu bytes at %x\n", pinfo->size,
1439 (unsigned int) pinfo->pointer);
1440 pinfo = pinfo->next;
1441 }
1442 }
1443#endif
1444 }
1445#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1446 fprintf(STDERR, " Current memory allocation: %10d bytes\n",
1447 current_allocation);
1448 fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
1449 maximum_allocation);
1450 fprintf(STDERR, " Total memory allocation: %10d bytes\n",
1451 total_allocation);
1452 fprintf(STDERR, " Number of allocations: %10d\n",
1453 num_allocations);
1454#endif
1455 }
1456 else
1457 {
1458 int i;
1459 for (i=0; i<3; ++i)
1460 {
1461 int kerror;
1462#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1463 int allocation_now = current_allocation;
1464#endif
1465 if (i == 1) status_dots_requested = 1;
1466 else if(verbose == 0)status_dots_requested = 0;
1467 if (i == 0 || verbose == 1 || ierror != 0)
1468 fprintf(STDERR, "Testing %s:",inname);
1469 kerror = test_one_file(inname, outname);
1470 if(kerror == 0)
1471 {
1472 if(verbose == 1 || i == 2)
1473 {
1474#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
1475 int k;
1476#endif
1477#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
1478 fprintf(STDERR, "\n PASS (%lu zero samples)\n",zero_samples);
1479#else
1480 fprintf(STDERR, " PASS\n");
1481#endif
1482#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
1483 for (k=0; k<256; k++)
1484 if(filters_used[k])
1485 fprintf(STDERR, " Filter %d was used %lu times\n",
1486 k,filters_used[k]);
1487#endif
1488#if defined(PNG_TIME_RFC1123_SUPPORTED)
1489 if(tIME_chunk_present != 0)
1490 fprintf(STDERR, " tIME = %s\n",tIME_string);
1491#endif /* PNG_TIME_RFC1123_SUPPORTED */
1492 }
1493 }
1494 else
1495 {
1496 if(verbose == 0 && i != 2)
1497 fprintf(STDERR, "Testing %s:",inname);
1498 fprintf(STDERR, " FAIL\n");
1499 ierror += kerror;
1500 }
1501#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1502 if (allocation_now != current_allocation)
1503 fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
1504 current_allocation-allocation_now);
1505 if (current_allocation != 0)
1506 {
1507 memory_infop pinfo = pinformation;
1508
1509 fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",
1510 current_allocation);
1511 while (pinfo != NULL)
1512 {
1513 fprintf(STDERR," %lu bytes at %x\n",
1514 pinfo->size, (unsigned int)pinfo->pointer);
1515 pinfo = pinfo->next;
1516 }
1517 }
1518#endif
1519 }
1520#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1521 fprintf(STDERR, " Current memory allocation: %10d bytes\n",
1522 current_allocation);
1523 fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
1524 maximum_allocation);
1525 fprintf(STDERR, " Total memory allocation: %10d bytes\n",
1526 total_allocation);
1527 fprintf(STDERR, " Number of allocations: %10d\n",
1528 num_allocations);
1529#endif
1530 }
1531
1532#ifdef PNGTEST_TIMING
1533 t_stop = (float)clock();
1534 t_misc += (t_stop - t_start);
1535 t_start = t_stop;
1536 fprintf(STDERR," CPU time used = %.3f seconds",
1537 (t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC);
1538 fprintf(STDERR," (decoding %.3f,\n",
1539 t_decode/(float)CLOCKS_PER_SEC);
1540 fprintf(STDERR," encoding %.3f ,",
1541 t_encode/(float)CLOCKS_PER_SEC);
1542 fprintf(STDERR," other %.3f seconds)\n\n",
1543 t_misc/(float)CLOCKS_PER_SEC);
1544#endif
1545
1546 if (ierror == 0)
1547 fprintf(STDERR, "libpng passes test\n");
1548 else
1549 fprintf(STDERR, "libpng FAILS test\n");
1550 return (int)(ierror != 0);
1551}
1552
1553/* Generate a compiler error if there is an old png.h in the search path. */
1554typedef version_1_2_7 your_png_h_is_not_version_1_2_7;
wxWidgets (Impactor)