This repository has been archived on 2023-11-11. You can view files and clone it, but cannot push or open issues or pull requests.
libpng/pngtest.c

1693 lines
50 KiB
C
Raw Normal View History

1997-01-17 07:34:35 +00:00
1996-01-16 07:51:56 +00:00
/* pngtest.c - a simple test program to test libpng
1998-01-01 13:13:13 +00:00
*
2009-10-18 00:18:43 +00:00
* Last changed in libpng 1.2.41 [October 18, 2009]
2009-03-21 13:10:28 +00:00
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
2000-06-04 19:29:29 +00:00
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
1998-01-01 13:13:13 +00:00
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
1998-01-01 13:13:13 +00:00
* This program reads in a PNG image, writes it out again, and then
* compares the two files. If the files are identical, this shows that
* the basic chunk handling, filtering, and (de)compression code is working
* properly. It does not currently test all of the transforms, although
* it probably should.
*
1998-06-14 19:43:31 +00:00
* The program will report "FAIL" in certain legitimate cases:
1998-01-01 13:13:13 +00:00
* 1) when the compression level or filter selection method is changed.
2000-02-05 05:40:16 +00:00
* 2) when the maximum IDAT size (PNG_ZBUF_SIZE in pngconf.h) is not 8192.
2000-11-10 18:26:19 +00:00
* 3) unknown unsafe-to-copy ancillary chunks or unknown critical chunks
* exist in the input file.
1998-01-01 13:13:13 +00:00
* 4) others not listed here...
* In these cases, it is best to check with another tool such as "pngcheck"
2000-02-05 05:40:16 +00:00
* to see what the differences between the two files are.
1998-01-01 13:13:13 +00:00
*
* If a filename is given on the command-line, then this file is used
* for the input, rather than the default "pngtest.png". This allows
1998-06-06 20:31:35 +00:00
* testing a wide variety of files easily. You can also test a number
* of files at once by typing "pngtest -m file1.png file2.png ..."
1998-01-01 13:13:13 +00:00
*/
1995-07-20 07:43:20 +00:00
2004-07-28 13:20:44 +00:00
#include "png.h"
#ifdef _WIN32_WCE
2000-07-08 18:19:41 +00:00
# if _WIN32_WCE < 211
__error__ (f|w)printf functions are not supported on old WindowsCE.;
# endif
# include <windows.h>
# include <stdlib.h>
# define READFILE(file, data, length, check) \
2008-07-06 11:05:04 +00:00
if (ReadFile(file, data, length, &check, NULL)) check = 0
2000-07-10 12:48:54 +00:00
# define WRITEFILE(file, data, length, check)) \
if (WriteFile(file, data, length, &check, NULL)) check = 0
2000-07-08 18:19:41 +00:00
# define FCLOSE(file) CloseHandle(file)
#else
# include <stdio.h>
# include <stdlib.h>
# define READFILE(file, data, length, check) \
2008-07-06 11:05:04 +00:00
check=(png_size_t)fread(data, (png_size_t)1, length, file)
2000-07-08 18:19:41 +00:00
# define WRITEFILE(file, data, length, check) \
2008-07-06 11:05:04 +00:00
check=(png_size_t)fwrite(data, (png_size_t)1, length, file)
2000-07-08 18:19:41 +00:00
# define FCLOSE(file) fclose(file)
#endif
1997-05-16 07:46:07 +00:00
#ifndef PNG_STDIO_SUPPORTED
# ifdef _WIN32_WCE
2001-05-07 19:52:45 +00:00
typedef HANDLE png_FILE_p;
# else
typedef FILE * png_FILE_p;
# endif
2001-01-22 14:52:16 +00:00
#endif
1997-05-16 07:46:07 +00:00
/* Makes pngtest verbose so we can find problems (needs to be before png.h) */
#ifndef PNG_DEBUG
2001-05-07 19:52:45 +00:00
# define PNG_DEBUG 0
#endif
#if !PNG_DEBUG
2009-05-20 17:43:52 +00:00
# define SINGLE_ROWBUF_ALLOC /* Makes buffer overruns easier to nail */
1998-03-07 20:33:00 +00:00
#endif
1997-05-16 07:46:07 +00:00
1999-10-01 19:22:25 +00:00
/* Turn on CPU timing
#define PNGTEST_TIMING
*/
#ifndef PNG_FLOATING_POINT_SUPPORTED
1999-12-10 15:43:02 +00:00
#undef PNGTEST_TIMING
#endif
1999-10-01 19:22:25 +00:00
#ifdef PNGTEST_TIMING
static float t_start, t_stop, t_decode, t_encode, t_misc;
#include <time.h>
#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED
2008-09-06 12:03:59 +00:00
#define PNG_tIME_STRING_LENGTH 29
2008-07-10 14:10:58 +00:00
static int tIME_chunk_present = 0;
2008-09-06 12:03:59 +00:00
static char tIME_string[PNG_tIME_STRING_LENGTH] = "tIME chunk is not present";
1999-12-10 15:43:02 +00:00
#endif
1998-06-06 20:31:35 +00:00
1999-09-17 17:27:26 +00:00
static int verbose = 0;
1998-03-07 20:33:00 +00:00
int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname));
1998-01-17 04:06:18 +00:00
1995-07-20 07:43:20 +00:00
#ifdef __TURBOC__
#include <mem.h>
#endif
2009-05-20 17:43:52 +00:00
/* Defined so I can write to a file on gui/windowing platforms */
1995-12-19 09:22:19 +00:00
/* #define STDERR stderr */
2009-05-20 17:43:52 +00:00
#define STDERR stdout /* For DOS */
1995-07-20 07:43:20 +00:00
2006-12-21 15:04:13 +00:00
/* In case a system header (e.g., on AIX) defined jmpbuf */
#ifdef jmpbuf
# undef jmpbuf
#endif
/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */
#ifndef png_jmpbuf
# define png_jmpbuf(png_ptr) png_ptr->jmpbuf
#endif
2009-05-20 17:43:52 +00:00
/* Example of using row callbacks to make a simple progress meter */
2008-07-10 14:10:58 +00:00
static int status_pass = 1;
static int status_dots_requested = 0;
static int status_dots = 1;
2008-07-06 11:05:04 +00:00
2000-07-17 11:17:09 +00:00
void
2002-07-02 03:23:46 +00:00
#ifdef PNG_1_0_X
PNGAPI
#endif
2000-07-17 11:17:09 +00:00
read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass);
2002-10-03 11:32:37 +00:00
void
2002-07-02 03:23:46 +00:00
#ifdef PNG_1_0_X
PNGAPI
#endif
1998-03-07 22:17:42 +00:00
read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
1998-03-07 12:06:55 +00:00
{
2009-05-20 17:43:52 +00:00
if (png_ptr == NULL || row_number > PNG_UINT_31_MAX)
return;
if (status_pass != pass)
{
fprintf(stdout, "\n Pass %d: ", pass);
status_pass = pass;
status_dots = 31;
}
status_dots--;
if (status_dots == 0)
{
fprintf(stdout, "\n ");
status_dots=30;
}
fprintf(stdout, "r");
1998-03-07 12:06:55 +00:00
}
1998-03-07 20:33:00 +00:00
2002-10-03 11:32:37 +00:00
void
2002-07-02 03:23:46 +00:00
#ifdef PNG_1_0_X
PNGAPI
#endif
2000-07-17 11:17:09 +00:00
write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass);
2002-10-03 11:32:37 +00:00
void
2002-07-02 03:23:46 +00:00
#ifdef PNG_1_0_X
PNGAPI
#endif
1998-03-07 22:17:42 +00:00
write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
1998-03-07 12:06:55 +00:00
{
2009-05-20 17:43:52 +00:00
if (png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7)
return;
fprintf(stdout, "w");
1998-03-07 12:06:55 +00:00
}
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
1999-09-17 17:27:26 +00:00
/* Example of using user transform callback (we don't transform anything,
2009-05-20 17:43:52 +00:00
* but merely examine the row filters. We set this to 256 rather than
* 5 in case illegal filter values are present.)
*/
1999-09-17 17:27:26 +00:00
static png_uint_32 filters_used[256];
void
2002-07-02 03:23:46 +00:00
#ifdef PNG_1_0_X
PNGAPI
#endif
2000-07-17 11:17:09 +00:00
count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data);
void
2002-07-02 03:23:46 +00:00
#ifdef PNG_1_0_X
PNGAPI
#endif
1999-09-17 17:27:26 +00:00
count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data)
{
2009-05-20 17:43:52 +00:00
if (png_ptr != NULL && row_info != NULL)
2008-07-10 14:10:58 +00:00
++filters_used[*(data - 1)];
1999-09-17 17:27:26 +00:00
}
#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
2009-05-20 17:43:52 +00:00
/* Example of using user transform callback (we don't transform anything,
* but merely count the zero samples)
*/
1998-03-07 12:06:55 +00:00
1998-04-21 20:03:57 +00:00
static png_uint_32 zero_samples;
1998-03-07 20:33:00 +00:00
2000-07-17 11:17:09 +00:00
void
2002-07-02 03:23:46 +00:00
#ifdef PNG_1_0_X
PNGAPI
#endif
2000-07-17 11:17:09 +00:00
count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data);
1998-03-07 22:17:42 +00:00
void
2002-07-02 03:23:46 +00:00
#ifdef PNG_1_0_X
PNGAPI
#endif
1998-04-21 20:03:57 +00:00
count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)
1998-03-07 12:06:55 +00:00
{
png_bytep dp = data;
2008-07-10 14:10:58 +00:00
if (png_ptr == NULL)return;
1998-03-07 12:06:55 +00:00
2009-05-20 17:43:52 +00:00
/* Contents of row_info:
1998-03-07 12:06:55 +00:00
* png_uint_32 width width of row
* png_uint_32 rowbytes number of bytes in row
* png_byte color_type color type of pixels
* png_byte bit_depth bit depth of samples
* png_byte channels number of channels (1-4)
* png_byte pixel_depth bits per pixel (depth*channels)
*/
2009-05-20 17:43:52 +00:00
/* Counts the number of zero samples (or zero pixels if color_type is 3 */
1998-03-07 12:06:55 +00:00
2008-07-10 14:10:58 +00:00
if (row_info->color_type == 0 || row_info->color_type == 3)
1998-03-07 12:06:55 +00:00
{
2008-07-10 14:10:58 +00:00
int pos = 0;
1998-04-21 20:03:57 +00:00
png_uint_32 n, nstop;
2008-07-10 14:10:58 +00:00
for (n = 0, nstop=row_info->width; n<nstop; n++)
1998-03-07 12:06:55 +00:00
{
2008-07-10 14:10:58 +00:00
if (row_info->bit_depth == 1)
1998-04-21 20:03:57 +00:00
{
2009-05-20 17:43:52 +00:00
if (((*dp << pos++ ) & 0x80) == 0)
zero_samples++;
2008-07-10 14:10:58 +00:00
if (pos == 8)
1998-03-07 12:06:55 +00:00
{
1998-04-21 20:03:57 +00:00
pos = 0;
1998-03-07 12:06:55 +00:00
dp++;
}
1998-04-21 20:03:57 +00:00
}
2008-07-10 14:10:58 +00:00
if (row_info->bit_depth == 2)
1998-04-21 20:03:57 +00:00
{
2009-05-20 17:43:52 +00:00
if (((*dp << (pos+=2)) & 0xc0) == 0)
zero_samples++;
2008-07-10 14:10:58 +00:00
if (pos == 8)
1998-03-07 12:06:55 +00:00
{
1998-04-21 20:03:57 +00:00
pos = 0;
1998-03-07 12:06:55 +00:00
dp++;
}
1998-04-21 20:03:57 +00:00
}
2008-07-10 14:10:58 +00:00
if (row_info->bit_depth == 4)
1998-04-21 20:03:57 +00:00
{
2009-05-20 17:43:52 +00:00
if (((*dp << (pos+=4)) & 0xf0) == 0)
zero_samples++;
2008-07-10 14:10:58 +00:00
if (pos == 8)
1998-03-07 12:06:55 +00:00
{
1998-04-21 20:03:57 +00:00
pos = 0;
1998-03-07 12:06:55 +00:00
dp++;
}
1998-04-21 20:03:57 +00:00
}
2008-07-10 14:10:58 +00:00
if (row_info->bit_depth == 8)
2009-05-20 17:43:52 +00:00
if (*dp++ == 0)
zero_samples++;
2008-07-10 14:10:58 +00:00
if (row_info->bit_depth == 16)
1998-03-07 12:06:55 +00:00
{
2009-06-04 11:08:17 +00:00
if ((*dp | *(dp+1)) == 0)
zero_samples++;
1998-03-07 12:06:55 +00:00
dp+=2;
}
}
}
2009-05-20 17:43:52 +00:00
else /* Other color types */
1998-03-07 12:06:55 +00:00
{
1998-04-21 20:03:57 +00:00
png_uint_32 n, nstop;
1998-03-07 12:06:55 +00:00
int channel;
int color_channels = row_info->channels;
2008-07-10 14:10:58 +00:00
if (row_info->color_type > 3)color_channels--;
1998-03-07 12:06:55 +00:00
2008-07-10 14:10:58 +00:00
for (n = 0, nstop=row_info->width; n<nstop; n++)
1998-03-07 12:06:55 +00:00
{
for (channel = 0; channel < color_channels; channel++)
{
2008-07-10 14:10:58 +00:00
if (row_info->bit_depth == 8)
2009-05-20 17:43:52 +00:00
if (*dp++ == 0)
zero_samples++;
2008-07-10 14:10:58 +00:00
if (row_info->bit_depth == 16)
1998-03-07 12:06:55 +00:00
{
2009-06-04 11:08:17 +00:00
if ((*dp | *(dp+1)) == 0)
zero_samples++;
1998-03-07 12:06:55 +00:00
dp+=2;
}
}
2008-07-10 14:10:58 +00:00
if (row_info->color_type > 3)
1998-03-07 12:06:55 +00:00
{
dp++;
2009-05-20 17:43:52 +00:00
if (row_info->bit_depth == 16)
dp++;
1998-03-07 12:06:55 +00:00
}
}
}
}
1998-03-08 03:30:44 +00:00
#endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */
1998-03-07 12:06:55 +00:00
1998-02-28 13:00:24 +00:00
static int wrote_question = 0;
1998-01-31 03:45:12 +00:00
#ifndef PNG_STDIO_SUPPORTED
1998-01-04 04:40:55 +00:00
/* START of code to validate stdio-free compilation */
2009-05-20 17:43:52 +00:00
/* These copies of the default read/write functions come from pngrio.c and
* pngwio.c. They allow "don't include stdio" testing of the library.
* This is the function that does the actual reading of data. If you are
* not reading from a standard C stream, you should create a replacement
* read_data function and use it at run time with png_set_read_fn(), rather
* than changing the library.
*/
2001-01-22 14:52:16 +00:00
1998-01-04 04:40:55 +00:00
#ifndef USE_FAR_KEYWORD
static void
2000-05-29 13:58:03 +00:00
pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
1998-01-04 04:40:55 +00:00
{
png_size_t check;
/* fread() returns 0 on error, so it is OK to store this in a png_size_t
* instead of an int, which is what fread() actually returns.
*/
2000-07-08 18:19:41 +00:00
READFILE((png_FILE_p)png_ptr->io_ptr, data, length, check);
1998-01-04 04:40:55 +00:00
if (check != length)
{
2001-05-07 19:52:45 +00:00
png_error(png_ptr, "Read Error!");
1998-01-04 04:40:55 +00:00
}
}
1996-06-05 20:50:50 +00:00
#else
2009-05-20 17:43:52 +00:00
/* This is the model-independent version. Since the standard I/O library
1998-01-04 04:40:55 +00:00
can't handle far buffers in the medium and small models, we have to copy
the data.
*/
1998-12-29 17:47:59 +00:00
1998-01-04 04:40:55 +00:00
#define NEAR_BUF_SIZE 1024
#define MIN(a,b) (a <= b ? a : b)
1998-12-29 17:47:59 +00:00
1998-03-07 22:17:42 +00:00
static void
2000-05-29 13:58:03 +00:00
pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
1998-01-04 04:40:55 +00:00
{
int check;
png_byte *n_data;
2000-07-08 18:19:41 +00:00
png_FILE_p io_ptr;
1998-01-04 04:40:55 +00:00
/* Check if data really is near. If so, use usual code. */
n_data = (png_byte *)CVT_PTR_NOCHECK(data);
2000-07-08 18:19:41 +00:00
io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
1998-01-04 04:40:55 +00:00
if ((png_bytep)n_data == data)
{
2000-07-08 18:19:41 +00:00
READFILE(io_ptr, n_data, length, check);
1998-01-04 04:40:55 +00:00
}
else
{
png_byte buf[NEAR_BUF_SIZE];
png_size_t read, remaining, err;
check = 0;
remaining = length;
do
{
read = MIN(NEAR_BUF_SIZE, remaining);
2000-07-08 18:19:41 +00:00
READFILE(io_ptr, buf, 1, err);
2009-05-20 17:43:52 +00:00
png_memcpy(data, buf, read); /* Copy far buffer to near buffer */
2008-07-10 14:10:58 +00:00
if (err != read)
1998-01-04 04:40:55 +00:00
break;
else
check += err;
data += read;
remaining -= read;
}
while (remaining != 0);
}
if (check != length)
png_error(png_ptr, "read Error");
}
1998-01-17 04:06:18 +00:00
#endif /* USE_FAR_KEYWORD */
1995-07-20 07:43:20 +00:00
#ifdef PNG_WRITE_FLUSH_SUPPORTED
1998-03-07 22:17:42 +00:00
static void
2000-05-29 13:58:03 +00:00
pngtest_flush(png_structp png_ptr)
1998-01-04 04:40:55 +00:00
{
2009-03-21 13:10:28 +00:00
/* Do nothing; fflush() is said to be just a waste of energy. */
2009-05-20 17:43:52 +00:00
png_ptr = png_ptr; /* Stifle compiler warning */
1998-01-04 04:40:55 +00:00
}
#endif
1995-07-20 07:43:20 +00:00
1998-05-21 14:27:50 +00:00
/* This is the function that does the actual writing of data. If you are
2009-05-20 17:43:52 +00:00
* not writing to a standard C stream, you should create a replacement
* write_data function and use it at run time with png_set_write_fn(), rather
* than changing the library.
*/
1998-01-04 04:40:55 +00:00
#ifndef USE_FAR_KEYWORD
static void
2000-05-29 13:58:03 +00:00
pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
1998-01-04 04:40:55 +00:00
{
png_uint_32 check;
2000-11-10 18:26:19 +00:00
WRITEFILE((png_FILE_p)png_ptr->io_ptr, data, length, check);
1998-01-04 04:40:55 +00:00
if (check != length)
{
png_error(png_ptr, "Write Error");
}
}
#else
2009-05-20 17:43:52 +00:00
/* This is the model-independent version. Since the standard I/O library
1998-01-04 04:40:55 +00:00
can't handle far buffers in the medium and small models, we have to copy
the data.
*/
#define NEAR_BUF_SIZE 1024
#define MIN(a,b) (a <= b ? a : b)
static void
2000-05-29 13:58:03 +00:00
pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
1998-01-04 04:40:55 +00:00
{
png_uint_32 check;
png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */
2000-07-08 18:19:41 +00:00
png_FILE_p io_ptr;
1998-01-04 04:40:55 +00:00
/* Check if data really is near. If so, use usual code. */
near_data = (png_byte *)CVT_PTR_NOCHECK(data);
2000-07-08 18:19:41 +00:00
io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
1998-01-04 04:40:55 +00:00
if ((png_bytep)near_data == data)
{
2000-11-10 18:26:19 +00:00
WRITEFILE(io_ptr, near_data, length, check);
1998-01-04 04:40:55 +00:00
}
else
{
png_byte buf[NEAR_BUF_SIZE];
png_size_t written, remaining, err;
check = 0;
remaining = length;
do
{
written = MIN(NEAR_BUF_SIZE, remaining);
2009-05-20 17:43:52 +00:00
png_memcpy(buf, data, written); /* Copy far buffer to near buffer */
2000-11-10 18:26:19 +00:00
WRITEFILE(io_ptr, buf, written, err);
1998-01-04 04:40:55 +00:00
if (err != written)
break;
else
check += err;
data += written;
remaining -= written;
}
while (remaining != 0);
}
if (check != length)
{
png_error(png_ptr, "Write Error");
}
}
1998-01-17 04:06:18 +00:00
#endif /* USE_FAR_KEYWORD */
1998-01-04 04:40:55 +00:00
/* This function is called when there is a warning, but the library thinks
* it can continue anyway. Replacement functions don't have to do anything
* here if you don't want to. In the default configuration, png_ptr is
* not used, but it is passed in case it may be useful.
*/
static void
2000-05-29 13:58:03 +00:00
pngtest_warning(png_structp png_ptr, png_const_charp message)
1998-01-04 04:40:55 +00:00
{
PNG_CONST char *name = "UNKNOWN (ERROR!)";
if (png_ptr != NULL && png_ptr->error_ptr != NULL)
name = png_ptr->error_ptr;
fprintf(STDERR, "%s: libpng warning: %s\n", name, message);
}
/* This is the default error handling function. Note that replacements for
* this function MUST NOT RETURN, or the program will likely crash. This
* function is used by default, or if the program supplies NULL for the
* error function pointer in png_set_error_fn().
*/
static void
2000-05-29 13:58:03 +00:00
pngtest_error(png_structp png_ptr, png_const_charp message)
1998-01-04 04:40:55 +00:00
{
2000-05-29 13:58:03 +00:00
pngtest_warning(png_ptr, message);
1998-05-21 14:27:50 +00:00
/* We can return because png_error calls the default handler, which is
2009-05-20 17:43:52 +00:00
* actually OK in this case.
*/
1998-01-04 04:40:55 +00:00
}
#endif /* !PNG_STDIO_SUPPORTED */
2008-07-10 14:10:58 +00:00
/* END of code to validate stdio-free compilation */
1998-01-04 04:40:55 +00:00
1998-01-31 03:45:12 +00:00
/* START of code to validate memory allocation and deallocation */
2004-08-15 12:15:39 +00:00
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1998-01-31 03:45:12 +00:00
/* Allocate memory. For reasonable files, size should never exceed
2009-05-20 17:43:52 +00:00
* 64K. However, zlib may allocate more then 64K if you don't tell
* it not to. See zconf.h and png.h for more information. zlib does
* need to allocate exactly 64K, so whatever you call here must
* have the ability to do that.
*
* This piece of code can be compiled to validate max 64K allocations
* by setting MAXSEG_64K in zlib zconf.h *or* PNG_MAX_MALLOC_64K.
*/
2000-02-05 05:40:16 +00:00
typedef struct memory_information
{
2000-07-08 18:19:41 +00:00
png_uint_32 size;
1998-06-06 20:31:35 +00:00
png_voidp pointer;
1998-01-31 03:45:12 +00:00
struct memory_information FAR *next;
} memory_information;
typedef memory_information FAR *memory_infop;
static memory_infop pinformation = NULL;
static int current_allocation = 0;
static int maximum_allocation = 0;
2000-05-29 13:58:03 +00:00
static int total_allocation = 0;
static int num_allocations = 0;
1998-01-31 03:45:12 +00:00
2001-06-23 13:03:17 +00:00
png_voidp png_debug_malloc PNGARG((png_structp png_ptr, png_uint_32 size));
void png_debug_free PNGARG((png_structp png_ptr, png_voidp ptr));
1998-01-31 03:45:12 +00:00
png_voidp
2000-02-05 05:40:16 +00:00
png_debug_malloc(png_structp png_ptr, png_uint_32 size)
{
1998-06-06 20:31:35 +00:00
/* png_malloc has already tested for NULL; png_create_struct calls
2009-05-20 17:43:52 +00:00
* png_debug_malloc directly, with png_ptr == NULL which is OK
*/
1998-06-06 20:31:35 +00:00
1998-01-31 03:45:12 +00:00
if (size == 0)
2001-10-27 12:35:13 +00:00
return (NULL);
1998-01-31 03:45:12 +00:00
/* This calls the library allocator twice, once to get the requested
buffer and once to get a new free list entry. */
{
2004-08-08 02:42:49 +00:00
/* Disable malloc_fn and free_fn */
2004-08-10 11:55:02 +00:00
memory_infop pinfo;
2004-08-08 02:42:49 +00:00
png_set_mem_fn(png_ptr, NULL, NULL, NULL);
2004-08-10 11:55:02 +00:00
pinfo = (memory_infop)png_malloc(png_ptr,
2008-07-06 11:05:04 +00:00
(png_uint_32)png_sizeof(*pinfo));
1998-01-31 03:45:12 +00:00
pinfo->size = size;
current_allocation += size;
2000-05-29 13:58:03 +00:00
total_allocation += size;
num_allocations ++;
1998-01-31 03:45:12 +00:00
if (current_allocation > maximum_allocation)
maximum_allocation = current_allocation;
2004-08-08 02:42:49 +00:00
pinfo->pointer = (png_voidp)png_malloc(png_ptr, size);
/* Restore malloc_fn and free_fn */
2008-07-10 14:10:58 +00:00
png_set_mem_fn(png_ptr,
png_voidp_NULL, (png_malloc_ptr)png_debug_malloc,
(png_free_ptr)png_debug_free);
2004-08-04 11:34:52 +00:00
if (size != 0 && pinfo->pointer == NULL)
{
current_allocation -= size;
total_allocation -= size;
2004-08-08 02:42:49 +00:00
png_error(png_ptr,
"out of memory in pngtest->png_debug_malloc.");
2004-08-04 11:34:52 +00:00
}
1998-01-31 03:45:12 +00:00
pinfo->next = pinformation;
pinformation = pinfo;
/* Make sure the caller isn't assuming zeroed memory. */
png_memset(pinfo->pointer, 0xdd, pinfo->size);
2008-07-10 14:10:58 +00:00
if (verbose)
2008-07-06 11:05:04 +00:00
printf("png_malloc %lu bytes at %x\n", (unsigned long)size,
2008-07-10 14:10:58 +00:00
pinfo->pointer);
1998-02-07 16:20:57 +00:00
return (png_voidp)(pinfo->pointer);
1998-01-31 03:45:12 +00:00
}
}
/* Free a pointer. It is removed from the list at the same time. */
void
1998-06-06 20:31:35 +00:00
png_debug_free(png_structp png_ptr, png_voidp ptr)
1998-01-31 03:45:12 +00:00
{
if (png_ptr == NULL)
1998-06-06 20:31:35 +00:00
fprintf(STDERR, "NULL pointer to png_debug_free.\n");
2000-02-05 05:40:16 +00:00
if (ptr == 0)
{
1998-01-31 03:45:12 +00:00
#if 0 /* This happens all the time. */
fprintf(STDERR, "WARNING: freeing NULL pointer\n");
#endif
return;
}
/* Unlink the element from the list. */
{
memory_infop FAR *ppinfo = &pinformation;
2000-02-05 05:40:16 +00:00
for (;;)
{
1998-01-31 03:45:12 +00:00
memory_infop pinfo = *ppinfo;
2000-02-05 05:40:16 +00:00
if (pinfo->pointer == ptr)
{
1998-01-31 03:45:12 +00:00
*ppinfo = pinfo->next;
current_allocation -= pinfo->size;
if (current_allocation < 0)
fprintf(STDERR, "Duplicate free of memory\n");
/* We must free the list element too, but first kill
1998-05-21 14:27:50 +00:00
the memory that is to be freed. */
2001-05-07 19:52:45 +00:00
png_memset(ptr, 0x55, pinfo->size);
1998-06-06 20:31:35 +00:00
png_free_default(png_ptr, pinfo);
2008-07-25 13:38:43 +00:00
pinfo = NULL;
1998-01-31 03:45:12 +00:00
break;
}
2000-02-05 05:40:16 +00:00
if (pinfo->next == NULL)
{
2001-06-23 13:03:17 +00:00
fprintf(STDERR, "Pointer %x not found\n", (unsigned int)ptr);
1998-01-31 03:45:12 +00:00
break;
}
ppinfo = &pinfo->next;
}
}
/* Finally free the data. */
2008-07-10 14:10:58 +00:00
if (verbose)
2008-07-06 11:05:04 +00:00
printf("Freeing %x\n", ptr);
1998-06-06 20:31:35 +00:00
png_free_default(png_ptr, ptr);
2008-07-25 13:38:43 +00:00
ptr = NULL;
1998-01-31 03:45:12 +00:00
}
2004-08-10 02:50:32 +00:00
#endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */
1998-01-31 03:45:12 +00:00
/* END of code to test memory allocation/deallocation */
2008-07-06 11:05:04 +00:00
/* Demonstration of user chunk support of the sTER and vpAg chunks */
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
2008-07-06 11:05:04 +00:00
2009-05-20 17:43:52 +00:00
/* (sTER is a public chunk not yet known by libpng. vpAg is a private
2008-07-06 11:05:04 +00:00
chunk used in ImageMagick to store "virtual page" size). */
static png_uint_32 user_chunk_data[4];
/* 0: sTER mode + 1
* 1: vpAg width
* 2: vpAg height
* 3: vpAg units
*/
static int read_user_chunk_callback(png_struct *png_ptr,
png_unknown_chunkp chunk)
{
2009-05-20 17:43:52 +00:00
png_uint_32
*my_user_chunk_data;
/* Return one of the following:
* return (-n); chunk had an error
* return (0); did not recognize
* return (n); success
*
* The unknown chunk structure contains the chunk data:
* png_byte name[5];
* png_byte *data;
* png_size_t size;
*
* Note that libpng has already taken care of the CRC handling.
*/
if (chunk->name[0] == 115 && chunk->name[1] == 84 && /* s T */
chunk->name[2] == 69 && chunk->name[3] == 82) /* E R */
{
/* Found sTER chunk */
if (chunk->size != 1)
return (-1); /* Error return */
if (chunk->data[0] != 0 && chunk->data[0] != 1)
return (-1); /* Invalid mode */
my_user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr);
my_user_chunk_data[0]=chunk->data[0]+1;
return (1);
}
if (chunk->name[0] != 118 || chunk->name[1] != 112 || /* v p */
chunk->name[2] != 65 || chunk->name[3] != 103) /* A g */
return (0); /* Did not recognize */
/* Found ImageMagick vpAg chunk */
if (chunk->size != 9)
return (-1); /* Error return */
my_user_chunk_data=(png_uint_32 *) png_get_user_chunk_ptr(png_ptr);
my_user_chunk_data[1]=png_get_uint_31(png_ptr, chunk->data);
my_user_chunk_data[2]=png_get_uint_31(png_ptr, chunk->data + 4);
my_user_chunk_data[3]=(png_uint_32)chunk->data[8];
return (1);
2008-07-06 11:05:04 +00:00
}
#endif
/* END of code to demonstrate user chunk support */
1998-01-04 04:40:55 +00:00
/* Test one file */
1998-03-07 22:17:42 +00:00
int
test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
1995-07-20 07:43:20 +00:00
{
2000-07-08 18:19:41 +00:00
static png_FILE_p fpin;
static png_FILE_p fpout; /* "static" prevents setjmp corruption */
2001-05-07 19:52:45 +00:00
png_structp read_ptr;
png_infop read_info_ptr, end_info_ptr;
#ifdef PNG_WRITE_SUPPORTED
png_structp write_ptr;
png_infop write_info_ptr;
png_infop write_end_info_ptr;
#else
png_structp write_ptr = NULL;
png_infop write_info_ptr = NULL;
png_infop write_end_info_ptr = NULL;
#endif
1996-01-26 07:38:47 +00:00
png_bytep row_buf;
1995-07-20 07:43:20 +00:00
png_uint_32 y;
1997-05-16 07:46:07 +00:00
png_uint_32 width, height;
int num_pass, pass;
int bit_depth, color_type;
2000-02-05 05:40:16 +00:00
#ifdef PNG_SETJMP_SUPPORTED
1997-01-17 07:34:35 +00:00
#ifdef USE_FAR_KEYWORD
2000-03-21 11:13:06 +00:00
jmp_buf jmpbuf;
2000-02-05 05:40:16 +00:00
#endif
1999-12-10 15:43:02 +00:00
#endif
1998-12-29 17:47:59 +00:00
#ifdef _WIN32_WCE
2000-07-11 12:12:36 +00:00
TCHAR path[MAX_PATH];
#endif
1998-01-04 04:40:55 +00:00
char inbuf[256], outbuf[256];
1995-07-20 07:43:20 +00:00
2001-10-27 12:35:13 +00:00
row_buf = NULL;
1996-06-05 20:50:50 +00:00
#ifdef _WIN32_WCE
2000-07-11 12:12:36 +00:00
MultiByteToWideChar(CP_ACP, 0, inname, -1, path, MAX_PATH);
if ((fpin = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE)
#else
1997-05-16 07:46:07 +00:00
if ((fpin = fopen(inname, "rb")) == NULL)
2000-07-11 12:12:36 +00:00
#endif
1995-11-28 17:22:13 +00:00
{
fprintf(STDERR, "Could not find input file %s\n", inname);
1998-02-01 02:07:59 +00:00
return (1);
1995-11-28 17:22:13 +00:00
}
#ifdef _WIN32_WCE
2000-07-11 12:12:36 +00:00
MultiByteToWideChar(CP_ACP, 0, outname, -1, path, MAX_PATH);
if ((fpout = CreateFile(path, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL)) == INVALID_HANDLE_VALUE)
#else
1997-05-16 07:46:07 +00:00
if ((fpout = fopen(outname, "wb")) == NULL)
2000-07-11 12:12:36 +00:00
#endif
1995-11-28 17:22:13 +00:00
{
1996-06-05 20:50:50 +00:00
fprintf(STDERR, "Could not open output file %s\n", outname);
2000-07-11 12:12:36 +00:00
FCLOSE(fpin);
1998-02-01 02:07:59 +00:00
return (1);
1995-11-28 17:22:13 +00:00
}
2008-12-01 14:58:57 +00:00
png_debug(0, "Allocating read and write structures");
2004-08-15 12:15:39 +00:00
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
2008-07-10 14:10:58 +00:00
read_ptr =
png_create_read_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
2001-10-27 12:35:13 +00:00
png_error_ptr_NULL, png_error_ptr_NULL, png_voidp_NULL,
1998-06-06 20:31:35 +00:00
(png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free);
#else
2008-07-10 14:10:58 +00:00
read_ptr =
png_create_read_struct(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
2001-10-27 12:35:13 +00:00
png_error_ptr_NULL, png_error_ptr_NULL);
1998-06-06 20:31:35 +00:00
#endif
#ifndef PNG_STDIO_SUPPORTED
2000-05-29 13:58:03 +00:00
png_set_error_fn(read_ptr, (png_voidp)inname, pngtest_error,
pngtest_warning);
2008-07-10 14:10:58 +00:00
#endif
2008-07-06 11:05:04 +00:00
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
2009-05-20 17:43:52 +00:00
user_chunk_data[0] = 0;
user_chunk_data[1] = 0;
user_chunk_data[2] = 0;
user_chunk_data[3] = 0;
png_set_read_user_chunk_fn(read_ptr, user_chunk_data,
read_user_chunk_callback);
2008-07-06 11:05:04 +00:00
#endif
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
2004-08-15 12:15:39 +00:00
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
2008-07-10 14:10:58 +00:00
write_ptr =
png_create_write_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
2001-10-27 12:35:13 +00:00
png_error_ptr_NULL, png_error_ptr_NULL, png_voidp_NULL,
1998-06-06 20:31:35 +00:00
(png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free);
#else
2008-07-10 14:10:58 +00:00
write_ptr =
png_create_write_struct(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
2001-10-27 12:35:13 +00:00
png_error_ptr_NULL, png_error_ptr_NULL);
1998-06-06 20:31:35 +00:00
#endif
#ifndef PNG_STDIO_SUPPORTED
2000-05-29 13:58:03 +00:00
png_set_error_fn(write_ptr, (png_voidp)inname, pngtest_error,
pngtest_warning);
2008-07-10 14:10:58 +00:00
#endif
1998-01-04 04:40:55 +00:00
#endif
2008-12-01 14:58:57 +00:00
png_debug(0, "Allocating read_info, write_info and end_info structures");
1997-05-16 07:46:07 +00:00
read_info_ptr = png_create_info_struct(read_ptr);
2001-05-06 10:34:26 +00:00
end_info_ptr = png_create_info_struct(read_ptr);
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
write_info_ptr = png_create_info_struct(write_ptr);
1999-10-23 13:39:18 +00:00
write_end_info_ptr = png_create_info_struct(write_ptr);
1998-06-06 20:31:35 +00:00
#endif
1996-06-05 20:50:50 +00:00
2000-02-05 05:40:16 +00:00
#ifdef PNG_SETJMP_SUPPORTED
2008-12-01 14:58:57 +00:00
png_debug(0, "Setting jmpbuf for read struct");
1997-01-17 07:34:35 +00:00
#ifdef USE_FAR_KEYWORD
2000-03-21 11:13:06 +00:00
if (setjmp(jmpbuf))
1997-01-17 07:34:35 +00:00
#else
2000-03-21 11:13:06 +00:00
if (setjmp(png_jmpbuf(read_ptr)))
1997-01-17 07:34:35 +00:00
#endif
1995-11-28 17:22:13 +00:00
{
1998-01-04 04:40:55 +00:00
fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname);
2008-07-25 13:38:43 +00:00
png_free(read_ptr, row_buf);
row_buf = NULL;
1997-05-16 07:46:07 +00:00
png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
1999-10-23 13:39:18 +00:00
png_destroy_info_struct(write_ptr, &write_end_info_ptr);
1997-05-16 07:46:07 +00:00
png_destroy_write_struct(&write_ptr, &write_info_ptr);
2001-05-07 19:52:45 +00:00
#endif
2000-07-11 12:12:36 +00:00
FCLOSE(fpin);
FCLOSE(fpout);
1998-02-01 02:07:59 +00:00
return (1);
1995-11-28 17:22:13 +00:00
}
1998-12-29 17:47:59 +00:00
#ifdef USE_FAR_KEYWORD
2008-07-06 11:05:04 +00:00
png_memcpy(png_jmpbuf(read_ptr), jmpbuf, png_sizeof(jmp_buf));
1998-12-29 17:47:59 +00:00
#endif
1997-05-16 07:46:07 +00:00
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
2008-12-01 14:58:57 +00:00
png_debug(0, "Setting jmpbuf for write struct");
1997-01-17 07:34:35 +00:00
#ifdef USE_FAR_KEYWORD
2000-03-21 11:13:06 +00:00
if (setjmp(jmpbuf))
1997-01-17 07:34:35 +00:00
#else
2000-03-21 11:13:06 +00:00
if (setjmp(png_jmpbuf(write_ptr)))
1997-01-17 07:34:35 +00:00
#endif
1996-01-26 07:38:47 +00:00
{
1998-01-04 04:40:55 +00:00
fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname);
1997-05-16 07:46:07 +00:00
png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
1999-10-23 13:39:18 +00:00
png_destroy_info_struct(write_ptr, &write_end_info_ptr);
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
1997-05-16 07:46:07 +00:00
png_destroy_write_struct(&write_ptr, &write_info_ptr);
2001-05-07 19:52:45 +00:00
#endif
2000-07-11 12:12:36 +00:00
FCLOSE(fpin);
FCLOSE(fpout);
1998-02-01 02:07:59 +00:00
return (1);
1995-11-28 17:22:13 +00:00
}
1997-01-17 07:34:35 +00:00
#ifdef USE_FAR_KEYWORD
2008-07-06 11:05:04 +00:00
png_memcpy(png_jmpbuf(write_ptr), jmpbuf, png_sizeof(jmp_buf));
2000-02-05 05:40:16 +00:00
#endif
2001-05-07 19:52:45 +00:00
#endif
1997-01-17 07:34:35 +00:00
#endif
1998-12-29 17:47:59 +00:00
2008-12-01 14:58:57 +00:00
png_debug(0, "Initializing input and output streams");
#ifdef PNG_STDIO_SUPPORTED
1996-06-05 20:50:50 +00:00
png_init_io(read_ptr, fpin);
2001-05-07 19:52:45 +00:00
# ifdef PNG_WRITE_SUPPORTED
1996-06-05 20:50:50 +00:00
png_init_io(write_ptr, fpout);
2001-05-07 19:52:45 +00:00
# endif
1998-01-04 04:40:55 +00:00
#else
2000-05-29 13:58:03 +00:00
png_set_read_fn(read_ptr, (png_voidp)fpin, pngtest_read_data);
2001-05-18 09:54:50 +00:00
# ifdef PNG_WRITE_SUPPORTED
2000-05-29 13:58:03 +00:00
png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data,
# ifdef PNG_WRITE_FLUSH_SUPPORTED
2000-05-29 13:58:03 +00:00
pngtest_flush);
2001-05-18 09:54:50 +00:00
# else
1998-01-04 04:40:55 +00:00
NULL);
2001-05-18 09:54:50 +00:00
# endif
# endif
1998-03-07 12:06:55 +00:00
#endif
2008-07-10 14:10:58 +00:00
if (status_dots_requested == 1)
1998-03-07 12:06:55 +00:00
{
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
1998-03-07 12:06:55 +00:00
png_set_write_status_fn(write_ptr, write_row_callback);
2001-05-07 19:52:45 +00:00
#endif
1998-03-07 12:06:55 +00:00
png_set_read_status_fn(read_ptr, read_row_callback);
}
else
{
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
2001-10-27 12:35:13 +00:00
png_set_write_status_fn(write_ptr, png_write_status_ptr_NULL);
2001-05-07 19:52:45 +00:00
#endif
2001-10-27 12:35:13 +00:00
png_set_read_status_fn(read_ptr, png_read_status_ptr_NULL);
1998-03-07 12:06:55 +00:00
}
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
1999-09-17 17:27:26 +00:00
{
2009-05-20 17:43:52 +00:00
int i;
for (i = 0; i<256; i++)
filters_used[i] = 0;
png_set_read_user_transform_fn(read_ptr, count_filters);
1999-09-17 17:27:26 +00:00
}
#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
2008-07-10 14:10:58 +00:00
zero_samples = 0;
1999-09-17 17:27:26 +00:00
png_set_write_user_transform_fn(write_ptr, count_zero_samples);
#endif
1995-11-28 17:22:13 +00:00
#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
2004-08-08 02:42:49 +00:00
# ifndef PNG_HANDLE_CHUNK_ALWAYS
# define PNG_HANDLE_CHUNK_ALWAYS 3
# endif
png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS,
2001-10-27 12:35:13 +00:00
png_bytep_NULL, 0);
2000-02-05 05:40:16 +00:00
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
2004-08-08 02:42:49 +00:00
# ifndef PNG_HANDLE_CHUNK_IF_SAFE
# define PNG_HANDLE_CHUNK_IF_SAFE 2
# endif
png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_IF_SAFE,
2001-10-27 12:35:13 +00:00
png_bytep_NULL, 0);
2000-02-05 05:40:16 +00:00
#endif
2008-12-01 14:58:57 +00:00
png_debug(0, "Reading info struct");
1997-05-16 07:46:07 +00:00
png_read_info(read_ptr, read_info_ptr);
1995-11-28 17:22:13 +00:00
2008-12-01 14:58:57 +00:00
png_debug(0, "Transferring info struct");
1997-05-16 07:46:07 +00:00
{
int interlace_type, compression_type, filter_type;
1995-11-28 17:22:13 +00:00
1997-05-16 07:46:07 +00:00
if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth,
&color_type, &interlace_type, &compression_type, &filter_type))
{
png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth,
#ifdef PNG_WRITE_INTERLACING_SUPPORTED
1997-05-16 07:46:07 +00:00
color_type, interlace_type, compression_type, filter_type);
1998-01-31 03:45:12 +00:00
#else
color_type, PNG_INTERLACE_NONE, compression_type, filter_type);
#endif
1997-05-16 07:46:07 +00:00
}
}
#ifdef PNG_FIXED_POINT_SUPPORTED
#ifdef PNG_cHRM_SUPPORTED
1995-11-28 17:22:13 +00:00
{
2000-02-05 05:40:16 +00:00
png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x,
1999-12-10 15:43:02 +00:00
blue_y;
if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y, &red_x,
&red_y, &green_x, &green_y, &blue_x, &blue_y))
1997-05-16 07:46:07 +00:00
{
1999-12-10 15:43:02 +00:00
png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x,
red_y, green_x, green_y, blue_x, blue_y);
1997-05-16 07:46:07 +00:00
}
1995-11-28 17:22:13 +00:00
}
1997-05-16 07:46:07 +00:00
#endif
#ifdef PNG_gAMA_SUPPORTED
1997-05-16 07:46:07 +00:00
{
2000-02-05 05:40:16 +00:00
png_fixed_point gamma;
1995-11-28 17:22:13 +00:00
1999-12-10 15:43:02 +00:00
if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma))
png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma);
1997-05-16 07:46:07 +00:00
}
#endif
2000-05-01 14:31:54 +00:00
#else /* Use floating point versions */
#ifdef PNG_FLOATING_POINT_SUPPORTED
#ifdef PNG_cHRM_SUPPORTED
2000-05-01 14:31:54 +00:00
{
double white_x, white_y, red_x, red_y, green_x, green_y, blue_x,
blue_y;
if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x,
&red_y, &green_x, &green_y, &blue_x, &blue_y))
{
png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x,
red_y, green_x, green_y, blue_x, blue_y);
}
}
#endif
#ifdef PNG_gAMA_SUPPORTED
2000-05-01 14:31:54 +00:00
{
double gamma;
if (png_get_gAMA(read_ptr, read_info_ptr, &gamma))
png_set_gAMA(write_ptr, write_info_ptr, gamma);
}
#endif
2009-05-20 17:43:52 +00:00
#endif /* Floating point */
#endif /* Fixed point */
#ifdef PNG_iCCP_SUPPORTED
1995-11-28 17:22:13 +00:00
{
1999-12-10 15:43:02 +00:00
png_charp name;
png_charp profile;
2000-02-05 05:40:16 +00:00
png_uint_32 proflen;
1999-12-10 15:43:02 +00:00
int compression_type;
1997-05-16 07:46:07 +00:00
1999-12-10 15:43:02 +00:00
if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type,
&profile, &proflen))
1997-05-16 07:46:07 +00:00
{
1999-12-10 15:43:02 +00:00
png_set_iCCP(write_ptr, write_info_ptr, name, compression_type,
profile, proflen);
1997-05-16 07:46:07 +00:00
}
1995-11-28 17:22:13 +00:00
}
1998-01-01 13:13:13 +00:00
#endif
#ifdef PNG_sRGB_SUPPORTED
1998-01-01 13:13:13 +00:00
{
1998-01-17 04:06:18 +00:00
int intent;
1998-01-01 13:13:13 +00:00
if (png_get_sRGB(read_ptr, read_info_ptr, &intent))
png_set_sRGB(write_ptr, write_info_ptr, intent);
}
1997-05-16 07:46:07 +00:00
#endif
1999-12-10 15:43:02 +00:00
{
png_colorp palette;
int num_palette;
if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette))
png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette);
}
#ifdef PNG_bKGD_SUPPORTED
1999-12-10 15:43:02 +00:00
{
png_color_16p background;
if (png_get_bKGD(read_ptr, read_info_ptr, &background))
{
png_set_bKGD(write_ptr, write_info_ptr, background);
}
}
#endif
#ifdef PNG_hIST_SUPPORTED
1995-11-28 17:22:13 +00:00
{
1997-05-16 07:46:07 +00:00
png_uint_16p hist;
if (png_get_hIST(read_ptr, read_info_ptr, &hist))
png_set_hIST(write_ptr, write_info_ptr, hist);
1995-11-28 17:22:13 +00:00
}
1997-05-16 07:46:07 +00:00
#endif
#ifdef PNG_oFFs_SUPPORTED
1997-05-16 07:46:07 +00:00
{
2000-02-05 05:40:16 +00:00
png_int_32 offset_x, offset_y;
1997-05-16 07:46:07 +00:00
int unit_type;
1995-11-28 17:22:13 +00:00
2008-07-06 11:05:04 +00:00
if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y,
2009-05-20 17:43:52 +00:00
&unit_type))
1997-05-16 07:46:07 +00:00
{
png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type);
}
}
#endif
#ifdef PNG_pCAL_SUPPORTED
1997-05-16 07:46:07 +00:00
{
png_charp purpose, units;
png_charpp params;
png_int_32 X0, X1;
int type, nparams;
if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type,
&nparams, &units, &params))
{
png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type,
nparams, units, params);
}
}
#endif
#ifdef PNG_pHYs_SUPPORTED
1997-05-16 07:46:07 +00:00
{
png_uint_32 res_x, res_y;
int unit_type;
if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type))
png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type);
}
#endif
#ifdef PNG_sBIT_SUPPORTED
1997-05-16 07:46:07 +00:00
{
1999-12-10 15:43:02 +00:00
png_color_8p sig_bit;
1997-05-16 07:46:07 +00:00
1999-12-10 15:43:02 +00:00
if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit))
png_set_sBIT(write_ptr, write_info_ptr, sig_bit);
1997-05-16 07:46:07 +00:00
}
1999-12-10 15:43:02 +00:00
#endif
#ifdef PNG_sCAL_SUPPORTED
1999-12-10 15:43:02 +00:00
#ifdef PNG_FLOATING_POINT_SUPPORTED
1995-11-28 17:22:13 +00:00
{
2000-02-05 05:40:16 +00:00
int unit;
2000-07-17 11:17:09 +00:00
double scal_width, scal_height;
1997-05-16 07:46:07 +00:00
2000-07-17 11:17:09 +00:00
if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width,
&scal_height))
1995-11-28 17:22:13 +00:00
{
2000-07-17 11:17:09 +00:00
png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height);
1999-12-10 15:43:02 +00:00
}
}
#else
2000-02-05 05:40:16 +00:00
#ifdef PNG_FIXED_POINT_SUPPORTED
1999-12-10 15:43:02 +00:00
{
2000-02-05 05:40:16 +00:00
int unit;
2000-07-17 11:17:09 +00:00
png_charp scal_width, scal_height;
1999-12-10 15:43:02 +00:00
2000-07-17 11:17:09 +00:00
if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width,
&scal_height))
1999-12-10 15:43:02 +00:00
{
2000-07-17 11:17:09 +00:00
png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, scal_height);
1997-05-16 07:46:07 +00:00
}
}
1996-01-16 07:51:56 +00:00
#endif
2000-02-05 05:40:16 +00:00
#endif
#endif
#ifdef PNG_TEXT_SUPPORTED
1997-05-16 07:46:07 +00:00
{
png_textp text_ptr;
int num_text;
if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0)
{
2008-12-01 14:58:57 +00:00
png_debug1(0, "Handling %d iTXt/tEXt/zTXt chunks", num_text);
1997-05-16 07:46:07 +00:00
png_set_text(write_ptr, write_info_ptr, text_ptr, num_text);
}
}
#endif
#ifdef PNG_tIME_SUPPORTED
1997-05-16 07:46:07 +00:00
{
png_timep mod_time;
if (png_get_tIME(read_ptr, read_info_ptr, &mod_time))
{
png_set_tIME(write_ptr, write_info_ptr, mod_time);
#ifdef PNG_TIME_RFC1123_SUPPORTED
2009-05-20 17:43:52 +00:00
/* We have to use png_memcpy instead of "=" because the string
* pointed to by png_convert_to_rfc1123() gets free'ed before
* we use it.
*/
2007-10-16 19:27:46 +00:00
png_memcpy(tIME_string,
2008-07-10 14:10:58 +00:00
png_convert_to_rfc1123(read_ptr, mod_time),
2007-10-16 19:27:46 +00:00
png_sizeof(tIME_string));
2008-07-10 14:10:58 +00:00
tIME_string[png_sizeof(tIME_string) - 1] = '\0';
1998-06-06 20:31:35 +00:00
tIME_chunk_present++;
#endif /* PNG_TIME_RFC1123_SUPPORTED */
1999-01-07 03:50:16 +00:00
}
1997-05-16 07:46:07 +00:00
}
#endif
#ifdef PNG_tRNS_SUPPORTED
1997-05-16 07:46:07 +00:00
{
png_bytep trans;
int num_trans;
png_color_16p trans_values;
if (png_get_tRNS(read_ptr, read_info_ptr, &trans, &num_trans,
&trans_values))
{
2008-04-14 14:26:03 +00:00
int sample_max = (1 << read_info_ptr->bit_depth);
/* libpng doesn't reject a tRNS chunk with out-of-range samples */
if (!((read_info_ptr->color_type == PNG_COLOR_TYPE_GRAY &&
2009-05-20 17:43:52 +00:00
(int)trans_values->gray > sample_max) ||
(read_info_ptr->color_type == PNG_COLOR_TYPE_RGB &&
((int)trans_values->red > sample_max ||
(int)trans_values->green > sample_max ||
(int)trans_values->blue > sample_max))))
png_set_tRNS(write_ptr, write_info_ptr, trans, num_trans,
trans_values);
1997-05-16 07:46:07 +00:00
}
}
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
2000-02-05 05:40:16 +00:00
{
png_unknown_chunkp unknowns;
int num_unknowns = (int)png_get_unknown_chunks(read_ptr, read_info_ptr,
&unknowns);
if (num_unknowns)
{
png_size_t i;
png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns,
num_unknowns);
2009-05-20 17:43:52 +00:00
/* Copy the locations from the read_info_ptr. The automatically
* generated locations in write_info_ptr are wrong because we
* haven't written anything yet.
*/
2000-02-05 05:40:16 +00:00
for (i = 0; i < (png_size_t)num_unknowns; i++)
2000-04-24 04:14:02 +00:00
png_set_unknown_chunk_location(write_ptr, write_info_ptr, i,
unknowns[i].location);
2000-02-05 05:40:16 +00:00
}
}
#endif
1997-05-16 07:46:07 +00:00
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
2008-12-01 14:58:57 +00:00
png_debug(0, "Writing info struct");
1999-11-27 16:22:33 +00:00
/* If we wanted, we could write info in two steps:
2009-05-20 17:43:52 +00:00
* png_write_info_before_PLTE(write_ptr, write_info_ptr);
1999-11-27 16:22:33 +00:00
*/
1997-05-16 07:46:07 +00:00
png_write_info(write_ptr, write_info_ptr);
2008-07-06 11:05:04 +00:00
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
2008-07-06 11:05:04 +00:00
if (user_chunk_data[0] != 0)
{
2009-05-20 17:43:52 +00:00
png_byte png_sTER[5] = {115, 84, 69, 82, '\0'};
2008-07-06 11:05:04 +00:00
2009-05-20 17:43:52 +00:00
unsigned char
ster_chunk_data[1];
2008-07-06 11:05:04 +00:00
2009-05-20 17:43:52 +00:00
if (verbose)
fprintf(STDERR, "\n stereo mode = %lu\n",
(unsigned long)(user_chunk_data[0] - 1));
ster_chunk_data[0]=(unsigned char)(user_chunk_data[0] - 1);
png_write_chunk(write_ptr, png_sTER, ster_chunk_data, 1);
2008-07-06 11:05:04 +00:00
}
if (user_chunk_data[1] != 0 || user_chunk_data[2] != 0)
{
2009-05-20 17:43:52 +00:00
png_byte png_vpAg[5] = {118, 112, 65, 103, '\0'};
unsigned char
vpag_chunk_data[9];
if (verbose)
fprintf(STDERR, " vpAg = %lu x %lu, units = %lu\n",
(unsigned long)user_chunk_data[1],
(unsigned long)user_chunk_data[2],
(unsigned long)user_chunk_data[3]);
png_save_uint_32(vpag_chunk_data, user_chunk_data[1]);
png_save_uint_32(vpag_chunk_data + 4, user_chunk_data[2]);
vpag_chunk_data[8] = (unsigned char)(user_chunk_data[3] & 0xff);
png_write_chunk(write_ptr, png_vpAg, vpag_chunk_data, 9);
2008-07-06 11:05:04 +00:00
}
#endif
2001-05-07 19:52:45 +00:00
#endif
1997-05-16 07:46:07 +00:00
2001-05-07 19:52:45 +00:00
#ifdef SINGLE_ROWBUF_ALLOC
2008-12-01 14:58:57 +00:00
png_debug(0, "Allocating row buffer...");
1998-12-29 17:47:59 +00:00
row_buf = (png_bytep)png_malloc(read_ptr,
1997-05-16 07:46:07 +00:00
png_get_rowbytes(read_ptr, read_info_ptr));
2008-12-01 14:58:57 +00:00
png_debug1(0, "0x%08lx", (unsigned long)row_buf);
2001-05-07 19:52:45 +00:00
#endif /* SINGLE_ROWBUF_ALLOC */
2008-12-01 14:58:57 +00:00
png_debug(0, "Writing row data");
1997-05-16 07:46:07 +00:00
1999-10-01 19:22:25 +00:00
#if defined(PNG_READ_INTERLACING_SUPPORTED) || \
defined(PNG_WRITE_INTERLACING_SUPPORTED)
1997-05-16 07:46:07 +00:00
num_pass = png_set_interlace_handling(read_ptr);
2001-05-07 19:52:45 +00:00
# ifdef PNG_WRITE_SUPPORTED
1997-05-16 07:46:07 +00:00
png_set_interlace_handling(write_ptr);
2001-05-07 19:52:45 +00:00
# endif
1999-10-01 19:22:25 +00:00
#else
2008-07-10 14:10:58 +00:00
num_pass = 1;
1999-10-01 19:22:25 +00:00
#endif
1997-05-16 07:46:07 +00:00
1999-10-01 19:22:25 +00:00
#ifdef PNGTEST_TIMING
t_stop = (float)clock();
t_misc += (t_stop - t_start);
t_start = t_stop;
#endif
1997-05-16 07:46:07 +00:00
for (pass = 0; pass < num_pass; pass++)
{
2008-12-01 14:58:57 +00:00
png_debug1(0, "Writing row data for pass %d", pass);
1997-05-16 07:46:07 +00:00
for (y = 0; y < height; y++)
{
2001-05-07 19:52:45 +00:00
#ifndef SINGLE_ROWBUF_ALLOC
2009-02-04 19:11:41 +00:00
png_debug2(0, "Allocating row buffer (pass %d, y = %ld)...", pass, y);
2001-05-07 19:52:45 +00:00
row_buf = (png_bytep)png_malloc(read_ptr,
png_get_rowbytes(read_ptr, read_info_ptr));
2008-12-01 14:58:57 +00:00
png_debug2(0, "0x%08lx (%ld bytes)", (unsigned long)row_buf,
2001-05-07 19:52:45 +00:00
png_get_rowbytes(read_ptr, read_info_ptr));
#endif /* !SINGLE_ROWBUF_ALLOC */
2001-10-27 12:35:13 +00:00
png_read_rows(read_ptr, (png_bytepp)&row_buf, png_bytepp_NULL, 1);
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
1999-10-01 19:22:25 +00:00
#ifdef PNGTEST_TIMING
t_stop = (float)clock();
t_decode += (t_stop - t_start);
t_start = t_stop;
#endif
1996-06-05 20:50:50 +00:00
png_write_rows(write_ptr, (png_bytepp)&row_buf, 1);
1999-10-01 19:22:25 +00:00
#ifdef PNGTEST_TIMING
t_stop = (float)clock();
t_encode += (t_stop - t_start);
t_start = t_stop;
#endif
2001-05-07 19:52:45 +00:00
#endif /* PNG_WRITE_SUPPORTED */
#ifndef SINGLE_ROWBUF_ALLOC
2008-12-01 14:58:57 +00:00
png_debug2(0, "Freeing row buffer (pass %d, y = %ld)", pass, y);
2001-05-07 19:52:45 +00:00
png_free(read_ptr, row_buf);
2008-07-25 13:38:43 +00:00
row_buf = NULL;
2001-05-07 19:52:45 +00:00
#endif /* !SINGLE_ROWBUF_ALLOC */
1995-11-28 17:22:13 +00:00
}
}
#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
2000-02-18 19:48:52 +00:00
png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1);
2000-02-05 05:40:16 +00:00
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
2000-02-18 19:48:52 +00:00
png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1);
2000-02-05 05:40:16 +00:00
#endif
2008-12-01 14:58:57 +00:00
png_debug(0, "Reading and writing end_info data");
2000-02-05 05:40:16 +00:00
1997-05-16 07:46:07 +00:00
png_read_end(read_ptr, end_info_ptr);
#ifdef PNG_TEXT_SUPPORTED
1999-10-23 13:39:18 +00:00
{
png_textp text_ptr;
int num_text;
if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0)
{
2008-12-01 14:58:57 +00:00
png_debug1(0, "Handling %d iTXt/tEXt/zTXt chunks", num_text);
1999-10-23 13:39:18 +00:00
png_set_text(write_ptr, write_end_info_ptr, text_ptr, num_text);
}
}
#endif
#ifdef PNG_tIME_SUPPORTED
1999-10-23 13:39:18 +00:00
{
png_timep mod_time;
if (png_get_tIME(read_ptr, end_info_ptr, &mod_time))
{
png_set_tIME(write_ptr, write_end_info_ptr, mod_time);
#ifdef PNG_TIME_RFC1123_SUPPORTED
2009-05-20 17:43:52 +00:00
/* We have to use png_memcpy instead of "=" because the string
1999-10-23 13:39:18 +00:00
pointed to by png_convert_to_rfc1123() gets free'ed before
we use it */
2007-10-16 19:27:46 +00:00
png_memcpy(tIME_string,
png_convert_to_rfc1123(read_ptr, mod_time),
png_sizeof(tIME_string));
2008-07-10 14:10:58 +00:00
tIME_string[png_sizeof(tIME_string) - 1] = '\0';
1999-10-23 13:39:18 +00:00
tIME_chunk_present++;
#endif /* PNG_TIME_RFC1123_SUPPORTED */
}
}
2000-02-05 05:40:16 +00:00
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
2000-02-05 05:40:16 +00:00
{
png_unknown_chunkp unknowns;
int num_unknowns;
num_unknowns = (int)png_get_unknown_chunks(read_ptr, end_info_ptr,
&unknowns);
if (num_unknowns)
{
png_size_t i;
png_set_unknown_chunks(write_ptr, write_end_info_ptr, unknowns,
num_unknowns);
2009-05-20 17:43:52 +00:00
/* Copy the locations from the read_info_ptr. The automatically
* generated locations in write_end_info_ptr are wrong because we
* haven't written the end_info yet.
*/
2000-02-05 05:40:16 +00:00
for (i = 0; i < (png_size_t)num_unknowns; i++)
2000-04-24 04:14:02 +00:00
png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i,
unknowns[i].location);
2000-02-05 05:40:16 +00:00
}
}
1999-10-23 13:39:18 +00:00
#endif
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
1999-10-23 13:39:18 +00:00
png_write_end(write_ptr, write_end_info_ptr);
2001-05-07 19:52:45 +00:00
#endif
1998-12-29 17:47:59 +00:00
1998-01-31 03:45:12 +00:00
#ifdef PNG_EASY_ACCESS_SUPPORTED
2008-07-10 14:10:58 +00:00
if (verbose)
1998-01-31 03:45:12 +00:00
{
png_uint_32 iwidth, iheight;
iwidth = png_get_image_width(write_ptr, write_info_ptr);
iheight = png_get_image_height(write_ptr, write_info_ptr);
2009-04-20 18:02:18 +00:00
fprintf(STDERR, "\n Image width = %lu, height = %lu\n",
2007-01-05 12:59:12 +00:00
(unsigned long)iwidth, (unsigned long)iheight);
1998-01-31 03:45:12 +00:00
}
#endif
1995-11-28 17:22:13 +00:00
2008-12-01 14:58:57 +00:00
png_debug(0, "Destroying data structs");
2001-05-07 19:52:45 +00:00
#ifdef SINGLE_ROWBUF_ALLOC
2008-12-01 14:58:57 +00:00
png_debug(1, "destroying row_buf for read_ptr");
1998-01-17 04:06:18 +00:00
png_free(read_ptr, row_buf);
2008-07-25 13:38:43 +00:00
row_buf = NULL;
2001-05-07 19:52:45 +00:00
#endif /* SINGLE_ROWBUF_ALLOC */
2008-12-01 14:58:57 +00:00
png_debug(1, "destroying read_ptr, read_info_ptr, end_info_ptr");
1997-05-16 07:46:07 +00:00
png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
2001-05-07 19:52:45 +00:00
#ifdef PNG_WRITE_SUPPORTED
2008-12-01 14:58:57 +00:00
png_debug(1, "destroying write_end_info_ptr");
1999-10-23 13:39:18 +00:00
png_destroy_info_struct(write_ptr, &write_end_info_ptr);
2008-12-01 14:58:57 +00:00
png_debug(1, "destroying write_ptr, write_info_ptr");
1997-05-16 07:46:07 +00:00
png_destroy_write_struct(&write_ptr, &write_info_ptr);
2001-05-07 19:52:45 +00:00
#endif
2008-12-01 14:58:57 +00:00
png_debug(0, "Destruction complete.");
1995-11-28 17:22:13 +00:00
2000-07-11 12:12:36 +00:00
FCLOSE(fpin);
FCLOSE(fpout);
1995-11-28 17:22:13 +00:00
2008-12-01 14:58:57 +00:00
png_debug(0, "Opening files for comparison");
#ifdef _WIN32_WCE
2000-07-11 12:12:36 +00:00
MultiByteToWideChar(CP_ACP, 0, inname, -1, path, MAX_PATH);
if ((fpin = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE)
#else
1997-05-16 07:46:07 +00:00
if ((fpin = fopen(inname, "rb")) == NULL)
2000-07-11 12:12:36 +00:00
#endif
1995-11-28 17:22:13 +00:00
{
1996-06-05 20:50:50 +00:00
fprintf(STDERR, "Could not find file %s\n", inname);
1998-02-01 02:07:59 +00:00
return (1);
1995-11-28 17:22:13 +00:00
}
#ifdef _WIN32_WCE
2000-07-11 12:12:36 +00:00
MultiByteToWideChar(CP_ACP, 0, outname, -1, path, MAX_PATH);
if ((fpout = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE)
#else
1997-05-16 07:46:07 +00:00
if ((fpout = fopen(outname, "rb")) == NULL)
2000-07-11 12:12:36 +00:00
#endif
1995-11-28 17:22:13 +00:00
{
1996-06-05 20:50:50 +00:00
fprintf(STDERR, "Could not find file %s\n", outname);
2000-07-11 12:12:36 +00:00
FCLOSE(fpin);
1998-02-01 02:07:59 +00:00
return (1);
1995-11-28 17:22:13 +00:00
}
1997-05-16 07:46:07 +00:00
2008-07-10 14:10:58 +00:00
for (;;)
1995-11-28 17:22:13 +00:00
{
1997-05-16 07:46:07 +00:00
png_size_t num_in, num_out;
1995-11-28 17:22:13 +00:00
2008-07-10 14:10:58 +00:00
READFILE(fpin, inbuf, 1, num_in);
READFILE(fpout, outbuf, 1, num_out);
1995-11-28 17:22:13 +00:00
if (num_in != num_out)
{
2000-02-05 05:40:16 +00:00
fprintf(STDERR, "\nFiles %s and %s are of a different size\n",
1996-06-05 20:50:50 +00:00
inname, outname);
2008-07-10 14:10:58 +00:00
if (wrote_question == 0)
1998-02-28 13:00:24 +00:00
{
fprintf(STDERR,
2000-02-05 05:40:16 +00:00
" Was %s written with the same maximum IDAT chunk size (%d bytes),",
2008-07-06 11:05:04 +00:00
inname, PNG_ZBUF_SIZE);
1998-02-28 13:00:24 +00:00
fprintf(STDERR,
2000-02-05 05:40:16 +00:00
"\n filtering heuristic (libpng default), compression");
1998-02-28 13:00:24 +00:00
fprintf(STDERR,
2000-02-05 05:40:16 +00:00
" level (zlib default),\n and zlib version (%s)?\n\n",
1998-02-28 13:00:24 +00:00
ZLIB_VERSION);
2008-07-10 14:10:58 +00:00
wrote_question = 1;
1998-02-28 13:00:24 +00:00
}
2000-07-11 12:12:36 +00:00
FCLOSE(fpin);
FCLOSE(fpout);
1998-02-28 13:00:24 +00:00
return (0);
1995-11-28 17:22:13 +00:00
}
if (!num_in)
break;
1997-05-16 07:46:07 +00:00
if (png_memcmp(inbuf, outbuf, num_in))
1995-11-28 17:22:13 +00:00
{
1999-09-17 17:27:26 +00:00
fprintf(STDERR, "\nFiles %s and %s are different\n", inname, outname);
2008-07-10 14:10:58 +00:00
if (wrote_question == 0)
1998-02-28 13:00:24 +00:00
{
fprintf(STDERR,
2000-02-05 05:40:16 +00:00
" Was %s written with the same maximum IDAT chunk size (%d bytes),",
2008-07-06 11:05:04 +00:00
inname, PNG_ZBUF_SIZE);
1998-02-28 13:00:24 +00:00
fprintf(STDERR,
2000-02-05 05:40:16 +00:00
"\n filtering heuristic (libpng default), compression");
1998-02-28 13:00:24 +00:00
fprintf(STDERR,
2000-02-05 05:40:16 +00:00
" level (zlib default),\n and zlib version (%s)?\n\n",
1998-02-28 13:00:24 +00:00
ZLIB_VERSION);
2008-07-10 14:10:58 +00:00
wrote_question = 1;
1998-02-28 13:00:24 +00:00
}
2000-07-11 12:12:36 +00:00
FCLOSE(fpin);
FCLOSE(fpout);
1998-02-28 13:00:24 +00:00
return (0);
1995-11-28 17:22:13 +00:00
}
}
2000-07-11 12:12:36 +00:00
FCLOSE(fpin);
FCLOSE(fpout);
1995-07-20 07:43:20 +00:00
1998-02-01 02:07:59 +00:00
return (0);
1995-07-20 07:43:20 +00:00
}
1995-09-26 10:22:39 +00:00
2009-05-20 17:43:52 +00:00
/* Input and output filenames */
1998-01-04 04:40:55 +00:00
#ifdef RISCOS
1999-09-17 17:27:26 +00:00
static PNG_CONST char *inname = "pngtest/png";
static PNG_CONST char *outname = "pngout/png";
1998-01-04 04:40:55 +00:00
#else
1998-03-07 17:24:03 +00:00
static PNG_CONST char *inname = "pngtest.png";
static PNG_CONST char *outname = "pngout.png";
1998-01-04 04:40:55 +00:00
#endif
int
main(int argc, char *argv[])
{
int multiple = 0;
int ierror = 0;
2009-04-20 18:02:18 +00:00
fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);
1998-01-31 03:45:12 +00:00
fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION);
2008-07-06 11:05:04 +00:00
fprintf(STDERR, "%s", png_get_copyright(NULL));
1999-11-27 16:22:33 +00:00
/* Show the version of libpng used in building the library */
2008-07-06 11:05:04 +00:00
fprintf(STDERR, " library (%lu):%s",
2007-01-05 12:59:12 +00:00
(unsigned long)png_access_version_number(),
2000-05-12 11:19:53 +00:00
png_get_header_version(NULL));
1999-11-27 16:22:33 +00:00
/* Show the version of libpng used in building the application */
2008-07-06 11:05:04 +00:00
fprintf(STDERR, " pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER,
2000-05-12 11:19:53 +00:00
PNG_HEADER_VERSION_STRING);
2008-07-06 11:05:04 +00:00
fprintf(STDERR, " sizeof(png_struct)=%ld, sizeof(png_info)=%ld\n",
2004-07-28 13:20:44 +00:00
(long)png_sizeof(png_struct), (long)png_sizeof(png_info));
1998-01-31 03:45:12 +00:00
/* Do some consistency checking on the memory allocation settings, I'm
2009-05-20 17:43:52 +00:00
* not sure this matters, but it is nice to know, the first of these
* tests should be impossible because of the way the macros are set
* in pngconf.h
*/
1998-03-07 20:33:00 +00:00
#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
1998-01-31 03:45:12 +00:00
fprintf(STDERR, " NOTE: Zlib compiled for max 64k, libpng not\n");
1998-03-07 20:33:00 +00:00
#endif
1998-01-31 03:45:12 +00:00
/* I think the following can happen. */
1998-03-07 20:33:00 +00:00
#if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K)
1998-01-31 03:45:12 +00:00
fprintf(STDERR, " NOTE: libpng compiled for max 64k, zlib not\n");
1998-03-07 20:33:00 +00:00
#endif
1998-01-04 04:40:55 +00:00
if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING))
{
fprintf(STDERR,
"Warning: versions are different between png.h and png.c\n");
fprintf(STDERR, " png.h version: %s\n", PNG_LIBPNG_VER_STRING);
fprintf(STDERR, " png.c version: %s\n\n", png_libpng_ver);
++ierror;
}
if (argc > 1)
{
1998-01-31 03:45:12 +00:00
if (strcmp(argv[1], "-m") == 0)
1998-03-07 12:06:55 +00:00
{
1998-01-31 03:45:12 +00:00
multiple = 1;
1998-03-07 12:06:55 +00:00
status_dots_requested = 0;
}
1998-01-31 03:45:12 +00:00
else if (strcmp(argv[1], "-mv") == 0 ||
strcmp(argv[1], "-vm") == 0 )
{
multiple = 1;
verbose = 1;
1998-03-07 12:06:55 +00:00
status_dots_requested = 1;
1998-01-31 03:45:12 +00:00
}
else if (strcmp(argv[1], "-v") == 0)
{
verbose = 1;
1998-03-07 12:06:55 +00:00
status_dots_requested = 1;
1998-01-31 03:45:12 +00:00
inname = argv[2];
}
else
1998-03-07 12:06:55 +00:00
{
1998-01-31 03:45:12 +00:00
inname = argv[1];
1998-03-07 12:06:55 +00:00
status_dots_requested = 0;
}
1998-01-04 04:40:55 +00:00
}
2008-07-10 14:10:58 +00:00
if (!multiple && argc == 3 + verbose)
outname = argv[2 + verbose];
1998-01-04 04:40:55 +00:00
2008-07-10 14:10:58 +00:00
if ((!multiple && argc > 3 + verbose) || (multiple && argc < 2))
1998-01-04 04:40:55 +00:00
{
1998-01-17 04:06:18 +00:00
fprintf(STDERR,
"usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n",
1998-01-04 04:40:55 +00:00
argv[0], argv[0]);
1998-01-17 04:06:18 +00:00
fprintf(STDERR,
" reads/writes one PNG file (without -m) or multiple files (-m)\n");
fprintf(STDERR,
" with -m %s is used as a temporary file\n", outname);
1998-01-04 04:40:55 +00:00
exit(1);
}
if (multiple)
{
int i;
2004-08-15 12:15:39 +00:00
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1998-01-31 03:45:12 +00:00
int allocation_now = current_allocation;
#endif
1998-01-04 04:40:55 +00:00
for (i=2; i<argc; ++i)
1998-01-31 03:45:12 +00:00
{
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
2000-05-01 14:31:54 +00:00
int k;
#endif
int kerror;
2009-04-20 18:02:18 +00:00
fprintf(STDERR, "\n Testing %s:", argv[i]);
1998-01-17 04:06:18 +00:00
kerror = test_one_file(argv[i], outname);
1998-12-29 17:47:59 +00:00
if (kerror == 0)
1998-06-06 20:31:35 +00:00
{
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
2007-01-05 12:59:12 +00:00
fprintf(STDERR, "\n PASS (%lu zero samples)\n",
(unsigned long)zero_samples);
1998-03-07 12:06:55 +00:00
#else
1998-01-31 03:45:12 +00:00
fprintf(STDERR, " PASS\n");
1998-12-29 17:47:59 +00:00
#endif
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
2008-07-10 14:10:58 +00:00
for (k = 0; k<256; k++)
if (filters_used[k])
1999-09-17 17:27:26 +00:00
fprintf(STDERR, " Filter %d was used %lu times\n",
2008-07-06 11:05:04 +00:00
k, (unsigned long)filters_used[k]);
1999-09-17 17:27:26 +00:00
#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED
2008-07-10 14:10:58 +00:00
if (tIME_chunk_present != 0)
2008-07-06 11:05:04 +00:00
fprintf(STDERR, " tIME = %s\n", tIME_string);
1998-06-06 20:31:35 +00:00
tIME_chunk_present = 0;
#endif /* PNG_TIME_RFC1123_SUPPORTED */
}
else
{
1998-01-17 04:06:18 +00:00
fprintf(STDERR, " FAIL\n");
ierror += kerror;
1998-06-06 20:31:35 +00:00
}
2004-08-15 12:15:39 +00:00
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1998-01-31 03:45:12 +00:00
if (allocation_now != current_allocation)
fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
2008-07-10 14:10:58 +00:00
current_allocation - allocation_now);
2000-02-05 05:40:16 +00:00
if (current_allocation != 0)
{
1998-01-31 03:45:12 +00:00
memory_infop pinfo = pinformation;
fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",
current_allocation);
2000-02-05 05:40:16 +00:00
while (pinfo != NULL)
{
2008-07-10 14:10:58 +00:00
fprintf(STDERR, " %lu bytes at %x\n",
(unsigned long)pinfo->size,
2001-06-23 13:03:17 +00:00
(unsigned int) pinfo->pointer);
1998-01-31 03:45:12 +00:00
pinfo = pinfo->next;
2000-02-05 05:40:16 +00:00
}
1998-01-08 02:54:20 +00:00
}
1998-01-31 03:45:12 +00:00
#endif
}
2004-08-15 12:15:39 +00:00
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
2000-05-29 13:58:03 +00:00
fprintf(STDERR, " Current memory allocation: %10d bytes\n",
1999-10-01 19:22:25 +00:00
current_allocation);
2000-05-29 13:58:03 +00:00
fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
1998-01-31 03:45:12 +00:00
maximum_allocation);
2000-05-29 13:58:03 +00:00
fprintf(STDERR, " Total memory allocation: %10d bytes\n",
total_allocation);
fprintf(STDERR, " Number of allocations: %10d\n",
num_allocations);
1998-01-31 03:45:12 +00:00
#endif
1998-01-04 04:40:55 +00:00
}
else
{
1998-01-17 04:06:18 +00:00
int i;
2008-07-10 14:10:58 +00:00
for (i = 0; i<3; ++i)
2000-02-05 05:40:16 +00:00
{
1998-01-17 04:06:18 +00:00
int kerror;
2004-08-15 12:15:39 +00:00
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1998-01-31 03:45:12 +00:00
int allocation_now = current_allocation;
#endif
1998-03-07 12:06:55 +00:00
if (i == 1) status_dots_requested = 1;
2008-07-10 14:10:58 +00:00
else if (verbose == 0)status_dots_requested = 0;
1998-01-31 03:45:12 +00:00
if (i == 0 || verbose == 1 || ierror != 0)
2009-04-20 18:02:18 +00:00
fprintf(STDERR, "\n Testing %s:", inname);
1998-01-17 04:06:18 +00:00
kerror = test_one_file(inname, outname);
2008-07-10 14:10:58 +00:00
if (kerror == 0)
1998-01-31 03:45:12 +00:00
{
2008-07-10 14:10:58 +00:00
if (verbose == 1 || i == 2)
1998-06-06 20:31:35 +00:00
{
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
1999-09-17 17:27:26 +00:00
int k;
2000-05-01 14:31:54 +00:00
#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
2007-01-05 12:59:12 +00:00
fprintf(STDERR, "\n PASS (%lu zero samples)\n",
(unsigned long)zero_samples);
1998-03-07 12:06:55 +00:00
#else
fprintf(STDERR, " PASS\n");
#endif
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
2008-07-10 14:10:58 +00:00
for (k = 0; k<256; k++)
if (filters_used[k])
1999-09-17 17:27:26 +00:00
fprintf(STDERR, " Filter %d was used %lu times\n",
2008-07-10 14:10:58 +00:00
k,
(unsigned long)filters_used[k]);
1999-09-17 17:27:26 +00:00
#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED
2008-07-10 14:10:58 +00:00
if (tIME_chunk_present != 0)
2008-07-06 11:05:04 +00:00
fprintf(STDERR, " tIME = %s\n", tIME_string);
1998-06-06 20:31:35 +00:00
#endif /* PNG_TIME_RFC1123_SUPPORTED */
}
1998-01-31 03:45:12 +00:00
}
else
{
2008-07-10 14:10:58 +00:00
if (verbose == 0 && i != 2)
2009-04-20 18:02:18 +00:00
fprintf(STDERR, "\n Testing %s:", inname);
1998-01-17 04:06:18 +00:00
fprintf(STDERR, " FAIL\n");
ierror += kerror;
1998-01-31 03:45:12 +00:00
}
2004-08-15 12:15:39 +00:00
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
1998-01-31 03:45:12 +00:00
if (allocation_now != current_allocation)
fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
2008-07-10 14:10:58 +00:00
current_allocation - allocation_now);
2000-02-05 05:40:16 +00:00
if (current_allocation != 0)
{
1998-01-31 03:45:12 +00:00
memory_infop pinfo = pinformation;
1998-12-29 17:47:59 +00:00
1998-01-31 03:45:12 +00:00
fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",
current_allocation);
2000-02-05 05:40:16 +00:00
while (pinfo != NULL)
{
2008-07-06 11:05:04 +00:00
fprintf(STDERR, " %lu bytes at %x\n",
2007-01-05 12:59:12 +00:00
(unsigned long)pinfo->size, (unsigned int)pinfo->pointer);
1998-01-31 03:45:12 +00:00
pinfo = pinfo->next;
}
}
#endif
1998-01-17 04:06:18 +00:00
}
2004-08-15 12:15:39 +00:00
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
2000-05-29 13:58:03 +00:00
fprintf(STDERR, " Current memory allocation: %10d bytes\n",
1999-10-01 19:22:25 +00:00
current_allocation);
2000-05-29 13:58:03 +00:00
fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
1998-01-31 03:45:12 +00:00
maximum_allocation);
2000-05-29 13:58:03 +00:00
fprintf(STDERR, " Total memory allocation: %10d bytes\n",
total_allocation);
fprintf(STDERR, " Number of allocations: %10d\n",
num_allocations);
1998-01-31 03:45:12 +00:00
#endif
1998-01-04 04:40:55 +00:00
}
1999-10-01 19:22:25 +00:00
#ifdef PNGTEST_TIMING
t_stop = (float)clock();
t_misc += (t_stop - t_start);
t_start = t_stop;
2008-07-06 11:05:04 +00:00
fprintf(STDERR, " CPU time used = %.3f seconds",
1999-10-01 19:22:25 +00:00
(t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC);
2008-07-06 11:05:04 +00:00
fprintf(STDERR, " (decoding %.3f,\n",
1999-10-01 19:22:25 +00:00
t_decode/(float)CLOCKS_PER_SEC);
2008-07-06 11:05:04 +00:00
fprintf(STDERR, " encoding %.3f ,",
1999-10-01 19:22:25 +00:00
t_encode/(float)CLOCKS_PER_SEC);
2008-07-06 11:05:04 +00:00
fprintf(STDERR, " other %.3f seconds)\n\n",
1999-10-01 19:22:25 +00:00
t_misc/(float)CLOCKS_PER_SEC);
#endif
1998-01-04 04:40:55 +00:00
if (ierror == 0)
2009-04-20 18:02:18 +00:00
fprintf(STDERR, " libpng passes test\n");
1998-01-04 04:40:55 +00:00
else
2009-04-20 18:02:18 +00:00
fprintf(STDERR, " libpng FAILS test\n");
1998-02-07 16:20:57 +00:00
return (int)(ierror != 0);
1998-01-04 04:40:55 +00:00
}
1998-06-06 20:31:35 +00:00
1999-10-01 19:22:25 +00:00
/* Generate a compiler error if there is an old png.h in the search path. */
2009-10-18 00:18:43 +00:00
typedef version_1_2_41beta06 your_png_h_is_not_version_1_2_41beta06;