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libpng/pngtest.c
Glenn Randers-Pehrson 31aee0d0c0 [devel] 
Fixed point APIs are now supported throughout (no missing APIs).
  Internal fixed point arithmetic support exists for all internal floating
    point operations.
  sCAL validates the floating point strings it is passed.
  Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2
  Two new APIs exist to get the number of passes without turning on the
    PNG_INTERLACE transform and to get the number of rows in the current
    pass.
  A new test program, pngvalid.c, validates the gamma code.
  Errors in the 16 bit gamma correction (overflows) have been corrected.
  cHRM chunk testing is done consistently (previously the floating point
    API bypassed it, because the test really didn't work on FP, now the test
    is performed on the actual values to be stored in the PNG file so it
    works in the FP case too.)
  Most floating point APIs now simply call the fixed point APIs after
    converting the values to the fixed point form used in the PNG file.
  The standard headers no longer include zlib.h, which is currently only
    required for pngstruct.h and can therefore be internal.
  (Patches by John Bowler)
2010-07-29 17:39:14 -05:00

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/* pngtest.c - a simple test program to test libpng
*
* Last changed in libpng 1.5.0 [July 29, 2010]
* Copyright (c) 1998-2010 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
* 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.
*
* The program will report "FAIL" in certain legitimate cases:
* 1) when the compression level or filter selection method is changed.
* 2) when the maximum IDAT size (PNG_ZBUF_SIZE in pngconf.h) is not 8192.
* 3) unknown unsafe-to-copy ancillary chunks or unknown critical chunks
* exist in the input file.
* 4) others not listed here...
* In these cases, it is best to check with another tool such as "pngcheck"
* to see what the differences between the two files are.
*
* 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
* 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 ..."
*/
#include "zlib.h"
#include "png.h"
/* Copied from pngpriv.h but only used in error messages below. */
#ifndef PNG_ZBUF_SIZE
# define PNG_ZBUF_SIZE 8192
#endif
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# define FCLOSE(file) fclose(file)
#ifndef PNG_STDIO_SUPPORTED
typedef FILE * png_FILE_p;
#endif
/* Makes pngtest verbose so we can find problems. */
#ifndef PNG_DEBUG
# define PNG_DEBUG 0
#endif
#if PNG_DEBUG > 1
# define pngtest_debug(m) ((void)fprintf(stderr, m "\n"))
# define pngtest_debug1(m,p1) ((void)fprintf(stderr, m "\n", p1))
# define pngtest_debug2(m,p1,p2) ((void)fprintf(stderr, m "\n", p1, p2))
#else
# define pngtest_debug(m) ((void)0)
# define pngtest_debug1(m,p1) ((void)0)
# define pngtest_debug2(m,p1,p2) ((void)0)
#endif
#if !PNG_DEBUG
# define SINGLE_ROWBUF_ALLOC /* Makes buffer overruns easier to nail */
#endif
/* The code uses memcmp and memcpy on large objects (typically row pointers) so
* it is necessary to do soemthing special on certain architectures, note that
* the actual support for this was effectively removed in 1.4, so only the
* memory remains in this program:
*/
#define CVT_PTR(ptr) (ptr)
#define CVT_PTR_NOCHECK(ptr) (ptr)
#define png_memcmp memcmp
#define png_memcpy memcpy
#define png_memset memset
/* Turn on CPU timing
#define PNGTEST_TIMING
*/
#ifndef PNG_FLOATING_POINT_SUPPORTED
#undef PNGTEST_TIMING
#endif
#ifdef PNGTEST_TIMING
static float t_start, t_stop, t_decode, t_encode, t_misc;
#include <time.h>
#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED
#define PNG_tIME_STRING_LENGTH 29
static int tIME_chunk_present = 0;
static char tIME_string[PNG_tIME_STRING_LENGTH] = "tIME chunk is not present";
#endif
static int verbose = 0;
int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname));
#ifdef __TURBOC__
#include <mem.h>
#endif
/* Defined so I can write to a file on gui/windowing platforms */
/* #define STDERR stderr */
#define STDERR stdout /* For DOS */
/* 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
/* Example of using row callbacks to make a simple progress meter */
static int status_pass = 1;
static int status_dots_requested = 0;
static int status_dots = 1;
void PNGCBAPI
read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass);
void PNGCBAPI
read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
{
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");
}
void PNGCBAPI
write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass);
void PNGCBAPI
write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
{
if (png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7)
return;
fprintf(stdout, "w");
}
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
/* Example of using user transform callback (we don't transform anything,
* but merely examine the row filters. We set this to 256 rather than
* 5 in case illegal filter values are present.)
*/
static png_uint_32 filters_used[256];
void PNGCBAPI
count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data);
void PNGCBAPI
count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data)
{
if (png_ptr != NULL && row_info != NULL)
++filters_used[*(data - 1)];
}
#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
/* Example of using user transform callback (we don't transform anything,
* but merely count the zero samples)
*/
static png_uint_32 zero_samples;
void PNGCBAPI
count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data);
void PNGCBAPI
count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)
{
png_bytep dp = data;
if (png_ptr == NULL)
return;
/* Contents of row_info:
* 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)
*/
/* Counts the number of zero samples (or zero pixels if color_type is 3 */
if (row_info->color_type == 0 || row_info->color_type == 3)
{
int pos = 0;
png_uint_32 n, nstop;
for (n = 0, nstop=row_info->width; n<nstop; n++)
{
if (row_info->bit_depth == 1)
{
if (((*dp << pos++ ) & 0x80) == 0)
zero_samples++;
if (pos == 8)
{
pos = 0;
dp++;
}
}
if (row_info->bit_depth == 2)
{
if (((*dp << (pos+=2)) & 0xc0) == 0)
zero_samples++;
if (pos == 8)
{
pos = 0;
dp++;
}
}
if (row_info->bit_depth == 4)
{
if (((*dp << (pos+=4)) & 0xf0) == 0)
zero_samples++;
if (pos == 8)
{
pos = 0;
dp++;
}
}
if (row_info->bit_depth == 8)
if (*dp++ == 0)
zero_samples++;
if (row_info->bit_depth == 16)
{
if ((*dp | *(dp+1)) == 0)
zero_samples++;
dp+=2;
}
}
}
else /* Other color types */
{
png_uint_32 n, nstop;
int channel;
int color_channels = row_info->channels;
if (row_info->color_type > 3)color_channels--;
for (n = 0, nstop=row_info->width; n<nstop; n++)
{
for (channel = 0; channel < color_channels; channel++)
{
if (row_info->bit_depth == 8)
if (*dp++ == 0)
zero_samples++;
if (row_info->bit_depth == 16)
{
if ((*dp | *(dp+1)) == 0)
zero_samples++;
dp+=2;
}
}
if (row_info->color_type > 3)
{
dp++;
if (row_info->bit_depth == 16)
dp++;
}
}
}
}
#endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */
static int wrote_question = 0;
#ifndef PNG_STDIO_SUPPORTED
/* START of code to validate stdio-free compilation */
/* 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.
*/
#ifndef USE_FAR_KEYWORD
static void PNGCBAPI
pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_size_t check = 0;
png_voidp io_ptr;
/* 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.
*/
io_ptr = png_get_io_ptr(png_ptr);
if (io_ptr != NULL)
{
check = fread(data, 1, length, (png_FILE_p)io_ptr);
}
if (check != length)
{
png_error(png_ptr, "Read Error!");
}
}
#else
/* This is the model-independent version. Since the standard I/O library
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 PNGCBAPI
pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_size_t check;
png_byte *n_data;
png_FILE_p io_ptr;
/* Check if data really is near. If so, use usual code. */
n_data = (png_byte *)CVT_PTR_NOCHECK(data);
io_ptr = (png_FILE_p)CVT_PTR(png_get_io_ptr(png_ptr));
if ((png_bytep)n_data == data)
{
check = fread(n_data, 1, length, io_ptr);
}
else
{
png_byte buf[NEAR_BUF_SIZE];
png_size_t read, remaining, err;
check = 0;
remaining = length;
do
{
read = MIN(NEAR_BUF_SIZE, remaining);
err = fread(buf, 1, 1, io_ptr);
png_memcpy(data, buf, read); /* Copy far buffer to near buffer */
if (err != read)
break;
else
check += err;
data += read;
remaining -= read;
}
while (remaining != 0);
}
if (check != length)
png_error(png_ptr, "read Error");
}
#endif /* USE_FAR_KEYWORD */
#ifdef PNG_WRITE_FLUSH_SUPPORTED
static void PNGCBAPI
pngtest_flush(png_structp png_ptr)
{
/* Do nothing; fflush() is said to be just a waste of energy. */
png_ptr = png_ptr; /* Stifle compiler warning */
}
#endif
/* This is the function that does the actual writing of data. If you are
* 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.
*/
#ifndef USE_FAR_KEYWORD
static void PNGCBAPI
pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_size_t check;
check = fwrite(data, 1, length, (png_FILE_p)png_get_io_ptr(png_ptr));
if (check != length)
{
png_error(png_ptr, "Write Error");
}
}
#else
/* This is the model-independent version. Since the standard I/O library
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 PNGCBAPI
pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
png_size_t check;
png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */
png_FILE_p io_ptr;
/* Check if data really is near. If so, use usual code. */
near_data = (png_byte *)CVT_PTR_NOCHECK(data);
io_ptr = (png_FILE_p)CVT_PTR(png_get_io_ptr(png_ptr));
if ((png_bytep)near_data == data)
{
check = fwrite(near_data, 1, length, io_ptr);
}
else
{
png_byte buf[NEAR_BUF_SIZE];
png_size_t written, remaining, err;
check = 0;
remaining = length;
do
{
written = MIN(NEAR_BUF_SIZE, remaining);
png_memcpy(buf, data, written); /* Copy far buffer to near buffer */
err = fwrite(buf, 1, written, io_ptr);
if (err != written)
break;
else
check += err;
data += written;
remaining -= written;
}
while (remaining != 0);
}
if (check != length)
{
png_error(png_ptr, "Write Error");
}
}
#endif /* USE_FAR_KEYWORD */
/* 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 PNGCBAPI
pngtest_warning(png_structp png_ptr, png_const_charp message)
{
PNG_CONST char *name = "UNKNOWN (ERROR!)";
char *test;
test = png_get_error_ptr(png_ptr);
if (test == NULL)
fprintf(STDERR, "%s: libpng warning: %s\n", name, message);
else
fprintf(STDERR, "%s: libpng warning: %s\n", test, 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 PNGCBAPI
pngtest_error(png_structp png_ptr, png_const_charp message)
{
pngtest_warning(png_ptr, message);
/* We can return because png_error calls the default handler, which is
* actually OK in this case.
*/
}
#endif /* !PNG_STDIO_SUPPORTED */
/* END of code to validate stdio-free compilation */
/* START of code to validate memory allocation and deallocation */
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
/* Allocate memory. For reasonable files, size should never exceed
* 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.
*/
typedef struct memory_information
{
png_alloc_size_t size;
png_voidp pointer;
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;
static int total_allocation = 0;
static int num_allocations = 0;
png_voidp PNGCBAPI png_debug_malloc PNGARG((png_structp png_ptr,
png_alloc_size_t size));
void PNGCBAPI png_debug_free PNGARG((png_structp png_ptr, png_voidp ptr));
png_voidp
PNGCBAPI png_debug_malloc(png_structp png_ptr, png_alloc_size_t size)
{
/* png_malloc has already tested for NULL; png_create_struct calls
* png_debug_malloc directly, with png_ptr == NULL which is OK
*/
if (size == 0)
return (NULL);
/* This calls the library allocator twice, once to get the requested
buffer and once to get a new free list entry. */
{
/* Disable malloc_fn and free_fn */
memory_infop pinfo;
png_set_mem_fn(png_ptr, NULL, NULL, NULL);
pinfo = (memory_infop)png_malloc(png_ptr,
png_sizeof(*pinfo));
pinfo->size = size;
current_allocation += size;
total_allocation += size;
num_allocations ++;
if (current_allocation > maximum_allocation)
maximum_allocation = current_allocation;
pinfo->pointer = png_malloc(png_ptr, size);
/* Restore malloc_fn and free_fn */
png_set_mem_fn(png_ptr,
NULL, png_debug_malloc, png_debug_free);
if (size != 0 && pinfo->pointer == NULL)
{
current_allocation -= size;
total_allocation -= size;
png_error(png_ptr,
"out of memory in pngtest->png_debug_malloc");
}
pinfo->next = pinformation;
pinformation = pinfo;
/* Make sure the caller isn't assuming zeroed memory. */
png_memset(pinfo->pointer, 0xdd, pinfo->size);
if (verbose)
printf("png_malloc %lu bytes at %p\n", (unsigned long)size,
pinfo->pointer);
return (png_voidp)(pinfo->pointer);
}
}
/* Free a pointer. It is removed from the list at the same time. */
void PNGCBAPI
png_debug_free(png_structp png_ptr, png_voidp ptr)
{
if (png_ptr == NULL)
fprintf(STDERR, "NULL pointer to png_debug_free.\n");
if (ptr == 0)
{
#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;
for (;;)
{
memory_infop pinfo = *ppinfo;
if (pinfo->pointer == ptr)
{
*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
the memory that is to be freed. */
png_memset(ptr, 0x55, pinfo->size);
png_free_default(png_ptr, pinfo);
pinfo = NULL;
break;
}
if (pinfo->next == NULL)
{
fprintf(STDERR, "Pointer %x not found\n", (unsigned int)ptr);
break;
}
ppinfo = &pinfo->next;
}
}
/* Finally free the data. */
if (verbose)
printf("Freeing %p\n", ptr);
png_free_default(png_ptr, ptr);
ptr = NULL;
}
#endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */
/* END of code to test memory allocation/deallocation */
/* Demonstration of user chunk support of the sTER and vpAg chunks */
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
/* (sTER is a public chunk not yet known by libpng. vpAg is a private
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 PNGCBAPI read_user_chunk_callback(png_struct *png_ptr,
png_unknown_chunkp chunk)
{
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);
}
#endif
/* END of code to demonstrate user chunk support */
/* Test one file */
int
test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
{
static png_FILE_p fpin;
static png_FILE_p fpout; /* "static" prevents setjmp corruption */
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
png_bytep row_buf;
png_uint_32 y;
png_uint_32 width, height;
int num_pass, pass;
int bit_depth, color_type;
#ifdef PNG_SETJMP_SUPPORTED
#ifdef USE_FAR_KEYWORD
jmp_buf png_jmpbuf;
#endif
#endif
char inbuf[256], outbuf[256];
row_buf = NULL;
if ((fpin = fopen(inname, "rb")) == NULL)
{
fprintf(STDERR, "Could not find input file %s\n", inname);
return (1);
}
if ((fpout = fopen(outname, "wb")) == NULL)
{
fprintf(STDERR, "Could not open output file %s\n", outname);
FCLOSE(fpin);
return (1);
}
pngtest_debug("Allocating read and write structures");
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
read_ptr =
png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL,
NULL, NULL, NULL, png_debug_malloc, png_debug_free);
#else
read_ptr =
png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
#endif
#ifndef PNG_STDIO_SUPPORTED
png_set_error_fn(read_ptr, (png_voidp)inname, pngtest_error,
pngtest_warning);
#endif
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
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);
#endif
#ifdef PNG_WRITE_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
write_ptr =
png_create_write_struct_2(PNG_LIBPNG_VER_STRING, NULL,
NULL, NULL, NULL, png_debug_malloc, png_debug_free);
#else
write_ptr =
png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
#endif
#ifndef PNG_STDIO_SUPPORTED
png_set_error_fn(write_ptr, (png_voidp)inname, pngtest_error,
pngtest_warning);
#endif
#endif
pngtest_debug("Allocating read_info, write_info and end_info structures");
read_info_ptr = png_create_info_struct(read_ptr);
end_info_ptr = png_create_info_struct(read_ptr);
#ifdef PNG_WRITE_SUPPORTED
write_info_ptr = png_create_info_struct(write_ptr);
write_end_info_ptr = png_create_info_struct(write_ptr);
#endif
#ifdef PNG_SETJMP_SUPPORTED
pngtest_debug("Setting jmpbuf for read struct");
#ifdef USE_FAR_KEYWORD
if (setjmp(png_jmpbuf))
#else
if (setjmp(png_jmpbuf(read_ptr)))
#endif
{
fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname);
png_free(read_ptr, row_buf);
row_buf = NULL;
png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
#ifdef PNG_WRITE_SUPPORTED
png_destroy_info_struct(write_ptr, &write_end_info_ptr);
png_destroy_write_struct(&write_ptr, &write_info_ptr);
#endif
FCLOSE(fpin);
FCLOSE(fpout);
return (1);
}
#ifdef USE_FAR_KEYWORD
png_memcpy(png_jmpbuf(read_ptr), png_jmpbuf, png_sizeof(jmp_buf));
#endif
#ifdef PNG_WRITE_SUPPORTED
pngtest_debug("Setting jmpbuf for write struct");
#ifdef USE_FAR_KEYWORD
if (setjmp(png_jmpbuf))
#else
if (setjmp(png_jmpbuf(write_ptr)))
#endif
{
fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname);
png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
png_destroy_info_struct(write_ptr, &write_end_info_ptr);
#ifdef PNG_WRITE_SUPPORTED
png_destroy_write_struct(&write_ptr, &write_info_ptr);
#endif
FCLOSE(fpin);
FCLOSE(fpout);
return (1);
}
#ifdef USE_FAR_KEYWORD
png_memcpy(png_jmpbuf(write_ptr), png_jmpbuf, png_sizeof(jmp_buf));
#endif
#endif
#endif
pngtest_debug("Initializing input and output streams");
#ifdef PNG_STDIO_SUPPORTED
png_init_io(read_ptr, fpin);
# ifdef PNG_WRITE_SUPPORTED
png_init_io(write_ptr, fpout);
# endif
#else
png_set_read_fn(read_ptr, (png_voidp)fpin, pngtest_read_data);
# ifdef PNG_WRITE_SUPPORTED
png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data,
# ifdef PNG_WRITE_FLUSH_SUPPORTED
pngtest_flush);
# else
NULL);
# endif
# endif
#endif
if (status_dots_requested == 1)
{
#ifdef PNG_WRITE_SUPPORTED
png_set_write_status_fn(write_ptr, write_row_callback);
#endif
png_set_read_status_fn(read_ptr, read_row_callback);
}
else
{
#ifdef PNG_WRITE_SUPPORTED
png_set_write_status_fn(write_ptr, NULL);
#endif
png_set_read_status_fn(read_ptr, NULL);
}
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
{
int i;
for (i = 0; i<256; i++)
filters_used[i] = 0;
png_set_read_user_transform_fn(read_ptr, count_filters);
}
#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
zero_samples = 0;
png_set_write_user_transform_fn(write_ptr, count_zero_samples);
#endif
#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
# ifndef PNG_HANDLE_CHUNK_ALWAYS
# define PNG_HANDLE_CHUNK_ALWAYS 3
# endif
png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS,
NULL, 0);
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
# 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,
NULL, 0);
#endif
pngtest_debug("Reading info struct");
png_read_info(read_ptr, read_info_ptr);
pngtest_debug("Transferring info struct");
{
int interlace_type, compression_type, filter_type;
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
color_type, interlace_type, compression_type, filter_type);
#else
color_type, PNG_INTERLACE_NONE, compression_type, filter_type);
#endif
}
}
#ifdef PNG_FIXED_POINT_SUPPORTED
#ifdef PNG_cHRM_SUPPORTED
{
png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x,
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))
{
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);
}
}
#endif
#ifdef PNG_gAMA_SUPPORTED
{
png_fixed_point gamma;
if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma))
png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma);
}
#endif
#else /* Use floating point versions */
#ifdef PNG_FLOATING_POINT_SUPPORTED
#ifdef PNG_cHRM_SUPPORTED
{
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
{
double gamma;
if (png_get_gAMA(read_ptr, read_info_ptr, &gamma))
png_set_gAMA(write_ptr, write_info_ptr, gamma);
}
#endif
#endif /* Floating point */
#endif /* Fixed point */
#ifdef PNG_iCCP_SUPPORTED
{
png_charp name;
png_bytep profile;
png_uint_32 proflen;
int compression_type;
if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type,
&profile, &proflen))
{
png_set_iCCP(write_ptr, write_info_ptr, name, compression_type,
profile, proflen);
}
}
#endif
#ifdef PNG_sRGB_SUPPORTED
{
int intent;
if (png_get_sRGB(read_ptr, read_info_ptr, &intent))
png_set_sRGB(write_ptr, write_info_ptr, intent);
}
#endif
{
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
{
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
{
png_uint_16p hist;
if (png_get_hIST(read_ptr, read_info_ptr, &hist))
png_set_hIST(write_ptr, write_info_ptr, hist);
}
#endif
#ifdef PNG_oFFs_SUPPORTED
{
png_int_32 offset_x, offset_y;
int unit_type;
if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y,
&unit_type))
{
png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type);
}
}
#endif
#ifdef PNG_pCAL_SUPPORTED
{
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
{
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
{
png_color_8p sig_bit;
if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit))
png_set_sBIT(write_ptr, write_info_ptr, sig_bit);
}
#endif
#ifdef PNG_sCAL_SUPPORTED
#ifdef PNG_FLOATING_POINT_SUPPORTED
{
int unit;
double scal_width, scal_height;
if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width,
&scal_height))
{
png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height);
}
}
#else
#ifdef PNG_FIXED_POINT_SUPPORTED
{
int unit;
png_charp scal_width, scal_height;
if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width,
&scal_height))
{
png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width,
scal_height);
}
}
#endif
#endif
#endif
#ifdef PNG_TEXT_SUPPORTED
{
png_textp text_ptr;
int num_text;
if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0)
{
pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text);
png_set_text(write_ptr, write_info_ptr, text_ptr, num_text);
}
}
#endif
#ifdef PNG_tIME_SUPPORTED
{
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
/* 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.
*/
png_memcpy(tIME_string,
png_convert_to_rfc1123(read_ptr, mod_time),
png_sizeof(tIME_string));
tIME_string[png_sizeof(tIME_string) - 1] = '\0';
tIME_chunk_present++;
#endif /* PNG_TIME_RFC1123_SUPPORTED */
}
}
#endif
#ifdef PNG_tRNS_SUPPORTED
{
png_bytep trans_alpha;
int num_trans;
png_color_16p trans_color;
if (png_get_tRNS(read_ptr, read_info_ptr, &trans_alpha, &num_trans,
&trans_color))
{
int sample_max = (1 << bit_depth);
/* libpng doesn't reject a tRNS chunk with out-of-range samples */
if (!((color_type == PNG_COLOR_TYPE_GRAY &&
(int)trans_color->gray > sample_max) ||
(color_type == PNG_COLOR_TYPE_RGB &&
((int)trans_color->red > sample_max ||
(int)trans_color->green > sample_max ||
(int)trans_color->blue > sample_max))))
png_set_tRNS(write_ptr, write_info_ptr, trans_alpha, num_trans,
trans_color);
}
}
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
{
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);
/* 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.
*/
for (i = 0; i < (png_size_t)num_unknowns; i++)
png_set_unknown_chunk_location(write_ptr, write_info_ptr, i,
unknowns[i].location);
}
}
#endif
#ifdef PNG_WRITE_SUPPORTED
pngtest_debug("Writing info struct");
/* If we wanted, we could write info in two steps:
* png_write_info_before_PLTE(write_ptr, write_info_ptr);
*/
png_write_info(write_ptr, write_info_ptr);
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
if (user_chunk_data[0] != 0)
{
png_byte png_sTER[5] = {115, 84, 69, 82, '\0'};
unsigned char
ster_chunk_data[1];
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);
}
if (user_chunk_data[1] != 0 || user_chunk_data[2] != 0)
{
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);
}
#endif
#endif
#ifdef SINGLE_ROWBUF_ALLOC
pngtest_debug("Allocating row buffer...");
row_buf = (png_bytep)png_malloc(read_ptr,
png_get_rowbytes(read_ptr, read_info_ptr));
pngtest_debug1("\t0x%08lx", (unsigned long)row_buf);
#endif /* SINGLE_ROWBUF_ALLOC */
pngtest_debug("Writing row data");
#if defined(PNG_READ_INTERLACING_SUPPORTED) || \
defined(PNG_WRITE_INTERLACING_SUPPORTED)
num_pass = png_set_interlace_handling(read_ptr);
# ifdef PNG_WRITE_SUPPORTED
png_set_interlace_handling(write_ptr);
# endif
#else
num_pass = 1;
#endif
#ifdef PNGTEST_TIMING
t_stop = (float)clock();
t_misc += (t_stop - t_start);
t_start = t_stop;
#endif
for (pass = 0; pass < num_pass; pass++)
{
pngtest_debug1("Writing row data for pass %d", pass);
for (y = 0; y < height; y++)
{
#ifndef SINGLE_ROWBUF_ALLOC
pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", pass, y);
row_buf = (png_bytep)png_malloc(read_ptr,
png_get_rowbytes(read_ptr, read_info_ptr));
pngtest_debug2("\t0x%08lx (%u bytes)", (unsigned long)row_buf,
png_get_rowbytes(read_ptr, read_info_ptr));
#endif /* !SINGLE_ROWBUF_ALLOC */
png_read_rows(read_ptr, (png_bytepp)&row_buf, NULL, 1);
#ifdef PNG_WRITE_SUPPORTED
#ifdef PNGTEST_TIMING
t_stop = (float)clock();
t_decode += (t_stop - t_start);
t_start = t_stop;
#endif
png_write_rows(write_ptr, (png_bytepp)&row_buf, 1);
#ifdef PNGTEST_TIMING
t_stop = (float)clock();
t_encode += (t_stop - t_start);
t_start = t_stop;
#endif
#endif /* PNG_WRITE_SUPPORTED */
#ifndef SINGLE_ROWBUF_ALLOC
pngtest_debug2("Freeing row buffer (pass %d, y = %u)", pass, y);
png_free(read_ptr, row_buf);
row_buf = NULL;
#endif /* !SINGLE_ROWBUF_ALLOC */
}
}
#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1);
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1);
#endif
pngtest_debug("Reading and writing end_info data");
png_read_end(read_ptr, end_info_ptr);
#ifdef PNG_TEXT_SUPPORTED
{
png_textp text_ptr;
int num_text;
if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0)
{
pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text);
png_set_text(write_ptr, write_end_info_ptr, text_ptr, num_text);
}
}
#endif
#ifdef PNG_tIME_SUPPORTED
{
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
/* 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 */
png_memcpy(tIME_string,
png_convert_to_rfc1123(read_ptr, mod_time),
png_sizeof(tIME_string));
tIME_string[png_sizeof(tIME_string) - 1] = '\0';
tIME_chunk_present++;
#endif /* PNG_TIME_RFC1123_SUPPORTED */
}
}
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
{
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);
/* 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.
*/
for (i = 0; i < (png_size_t)num_unknowns; i++)
png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i,
unknowns[i].location);
}
}
#endif
#ifdef PNG_WRITE_SUPPORTED
png_write_end(write_ptr, write_end_info_ptr);
#endif
#ifdef PNG_EASY_ACCESS_SUPPORTED
if (verbose)
{
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);
fprintf(STDERR, "\n Image width = %lu, height = %lu\n",
(unsigned long)iwidth, (unsigned long)iheight);
}
#endif
pngtest_debug("Destroying data structs");
#ifdef SINGLE_ROWBUF_ALLOC
pngtest_debug("destroying row_buf for read_ptr");
png_free(read_ptr, row_buf);
row_buf = NULL;
#endif /* SINGLE_ROWBUF_ALLOC */
pngtest_debug("destroying read_ptr, read_info_ptr, end_info_ptr");
png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
#ifdef PNG_WRITE_SUPPORTED
pngtest_debug("destroying write_end_info_ptr");
png_destroy_info_struct(write_ptr, &write_end_info_ptr);
pngtest_debug("destroying write_ptr, write_info_ptr");
png_destroy_write_struct(&write_ptr, &write_info_ptr);
#endif
pngtest_debug("Destruction complete.");
FCLOSE(fpin);
FCLOSE(fpout);
pngtest_debug("Opening files for comparison");
if ((fpin = fopen(inname, "rb")) == NULL)
{
fprintf(STDERR, "Could not find file %s\n", inname);
return (1);
}
if ((fpout = fopen(outname, "rb")) == NULL)
{
fprintf(STDERR, "Could not find file %s\n", outname);
FCLOSE(fpin);
return (1);
}
for (;;)
{
png_size_t num_in, num_out;
num_in = fread(inbuf, 1, 1, fpin);
num_out = fread(outbuf, 1, 1, fpout);
if (num_in != num_out)
{
fprintf(STDERR, "\nFiles %s and %s are of a different size\n",
inname, outname);
if (wrote_question == 0)
{
fprintf(STDERR,
" Was %s written with the same maximum IDAT chunk size (%d bytes),",
inname, PNG_ZBUF_SIZE);
fprintf(STDERR,
"\n filtering heuristic (libpng default), compression");
fprintf(STDERR,
" level (zlib default),\n and zlib version (%s)?\n\n",
ZLIB_VERSION);
wrote_question = 1;
}
FCLOSE(fpin);
FCLOSE(fpout);
return (0);
}
if (!num_in)
break;
if (png_memcmp(inbuf, outbuf, num_in))
{
fprintf(STDERR, "\nFiles %s and %s are different\n", inname, outname);
if (wrote_question == 0)
{
fprintf(STDERR,
" Was %s written with the same maximum IDAT chunk size (%d bytes),",
inname, PNG_ZBUF_SIZE);
fprintf(STDERR,
"\n filtering heuristic (libpng default), compression");
fprintf(STDERR,
" level (zlib default),\n and zlib version (%s)?\n\n",
ZLIB_VERSION);
wrote_question = 1;
}
FCLOSE(fpin);
FCLOSE(fpout);
return (0);
}
}
FCLOSE(fpin);
FCLOSE(fpout);
return (0);
}
/* Input and output filenames */
#ifdef RISCOS
static PNG_CONST char *inname = "pngtest/png";
static PNG_CONST char *outname = "pngout/png";
#else
static PNG_CONST char *inname = "pngtest.png";
static PNG_CONST char *outname = "pngout.png";
#endif
int
main(int argc, char *argv[])
{
int multiple = 0;
int ierror = 0;
fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);
fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION);
fprintf(STDERR, "%s", png_get_copyright(NULL));
/* Show the version of libpng used in building the library */
fprintf(STDERR, " library (%lu):%s",
(unsigned long)png_access_version_number(),
png_get_header_version(NULL));
/* Show the version of libpng used in building the application */
fprintf(STDERR, " pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER,
PNG_HEADER_VERSION_STRING);
/* Do some consistency checking on the memory allocation settings, I'm
* 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
*/
#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
fprintf(STDERR, " NOTE: Zlib compiled for max 64k, libpng not\n");
#endif
/* I think the following can happen. */
#if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K)
fprintf(STDERR, " NOTE: libpng compiled for max 64k, zlib not\n");
#endif
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)
{
if (strcmp(argv[1], "-m") == 0)
{
multiple = 1;
status_dots_requested = 0;
}
else if (strcmp(argv[1], "-mv") == 0 ||
strcmp(argv[1], "-vm") == 0 )
{
multiple = 1;
verbose = 1;
status_dots_requested = 1;
}
else if (strcmp(argv[1], "-v") == 0)
{
verbose = 1;
status_dots_requested = 1;
inname = argv[2];
}
else
{
inname = argv[1];
status_dots_requested = 0;
}
}
if (!multiple && argc == 3 + verbose)
outname = argv[2 + verbose];
if ((!multiple && argc > 3 + verbose) || (multiple && argc < 2))
{
fprintf(STDERR,
"usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n",
argv[0], argv[0]);
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);
exit(1);
}
if (multiple)
{
int i;
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
int allocation_now = current_allocation;
#endif
for (i=2; i<argc; ++i)
{
int kerror;
fprintf(STDERR, "\n Testing %s:", argv[i]);
kerror = test_one_file(argv[i], outname);
if (kerror == 0)
{
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
int k;
#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
fprintf(STDERR, "\n PASS (%lu zero samples)\n",
(unsigned long)zero_samples);
#else
fprintf(STDERR, " PASS\n");
#endif
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
for (k = 0; k<256; k++)
if (filters_used[k])
fprintf(STDERR, " Filter %d was used %lu times\n",
k, (unsigned long)filters_used[k]);
#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED
if (tIME_chunk_present != 0)
fprintf(STDERR, " tIME = %s\n", tIME_string);
tIME_chunk_present = 0;
#endif /* PNG_TIME_RFC1123_SUPPORTED */
}
else
{
fprintf(STDERR, " FAIL\n");
ierror += kerror;
}
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
if (allocation_now != current_allocation)
fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
current_allocation - allocation_now);
if (current_allocation != 0)
{
memory_infop pinfo = pinformation;
fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",
current_allocation);
while (pinfo != NULL)
{
fprintf(STDERR, " %lu bytes at %x\n",
(unsigned long)pinfo->size,
(unsigned int) pinfo->pointer);
pinfo = pinfo->next;
}
}
#endif
}
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
fprintf(STDERR, " Current memory allocation: %10d bytes\n",
current_allocation);
fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
maximum_allocation);
fprintf(STDERR, " Total memory allocation: %10d bytes\n",
total_allocation);
fprintf(STDERR, " Number of allocations: %10d\n",
num_allocations);
#endif
}
else
{
int i;
for (i = 0; i<3; ++i)
{
int kerror;
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
int allocation_now = current_allocation;
#endif
if (i == 1)
status_dots_requested = 1;
else if (verbose == 0)
status_dots_requested = 0;
if (i == 0 || verbose == 1 || ierror != 0)
fprintf(STDERR, "\n Testing %s:", inname);
kerror = test_one_file(inname, outname);
if (kerror == 0)
{
if (verbose == 1 || i == 2)
{
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
int k;
#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
fprintf(STDERR, "\n PASS (%lu zero samples)\n",
(unsigned long)zero_samples);
#else
fprintf(STDERR, " PASS\n");
#endif
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
for (k = 0; k<256; k++)
if (filters_used[k])
fprintf(STDERR, " Filter %d was used %lu times\n",
k, (unsigned long)filters_used[k]);
#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED
if (tIME_chunk_present != 0)
fprintf(STDERR, " tIME = %s\n", tIME_string);
#endif /* PNG_TIME_RFC1123_SUPPORTED */
}
}
else
{
if (verbose == 0 && i != 2)
fprintf(STDERR, "\n Testing %s:", inname);
fprintf(STDERR, " FAIL\n");
ierror += kerror;
}
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
if (allocation_now != current_allocation)
fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
current_allocation - allocation_now);
if (current_allocation != 0)
{
memory_infop pinfo = pinformation;
fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n",
current_allocation);
while (pinfo != NULL)
{
fprintf(STDERR, " %lu bytes at %x\n",
(unsigned long)pinfo->size, (unsigned int)pinfo->pointer);
pinfo = pinfo->next;
}
}
#endif
}
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
fprintf(STDERR, " Current memory allocation: %10d bytes\n",
current_allocation);
fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
maximum_allocation);
fprintf(STDERR, " Total memory allocation: %10d bytes\n",
total_allocation);
fprintf(STDERR, " Number of allocations: %10d\n",
num_allocations);
#endif
}
#ifdef PNGTEST_TIMING
t_stop = (float)clock();
t_misc += (t_stop - t_start);
t_start = t_stop;
fprintf(STDERR, " CPU time used = %.3f seconds",
(t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC);
fprintf(STDERR, " (decoding %.3f,\n",
t_decode/(float)CLOCKS_PER_SEC);
fprintf(STDERR, " encoding %.3f ,",
t_encode/(float)CLOCKS_PER_SEC);
fprintf(STDERR, " other %.3f seconds)\n\n",
t_misc/(float)CLOCKS_PER_SEC);
#endif
if (ierror == 0)
fprintf(STDERR, " libpng passes test\n");
else
fprintf(STDERR, " libpng FAILS test\n");
return (int)(ierror != 0);
}
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_5_0beta36 your_png_h_is_not_version_1_5_0beta36;
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