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Imported from libpng-1.0.4-pre1.tar

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This commit is contained in:
Glenn Randers-Pehrson
1999-09-17 12:27:26 -05:00
parent 87544ac62b
commit 4393a9ad6b
56 changed files with 5798 additions and 1904 deletions
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66
pngtest.c
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@@ -1,7 +1,7 @@
/* pngtest.c - a simple test program to test libpng
*
* libpng 1.0.3 -January 14, 1999
* libpng 1.0.4 - September 17, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
@@ -42,6 +42,8 @@ static int tIME_chunk_present=0;
static char tIME_string[30] = "no tIME chunk present in file";
#endif /* PNG_TIME_RFC1123_SUPPORTED */
static int verbose = 0;
int test_one_file PNGARG((PNG_CONST char *inname, PNG_CONST char *outname));
#ifdef __TURBOC__
@@ -60,12 +62,12 @@ static int status_dots=1;
void
read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
{
if(png_ptr == NULL || row_number > 0x3fffffffL) return;
if(png_ptr == NULL || row_number > PNG_MAX_UINT) return;
if(status_pass != pass)
{
fprintf(stdout,"\n Pass %d: ",pass);
status_pass = pass;
status_dots = 30;
status_dots = 31;
}
status_dots--;
if(status_dots == 0)
@@ -79,11 +81,24 @@ read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
void
write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
{
if(png_ptr == NULL || row_number > 0x3fffffffL || pass > 7) return;
if(png_ptr == NULL || row_number > PNG_MAX_UINT || pass > 7) return;
fprintf(stdout, "w");
}
#if defined(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
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
#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
/* example of using user transform callback (we don't transform anything,
but merely count the zero samples) */
@@ -105,6 +120,7 @@ count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)
* 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)
@@ -178,7 +194,6 @@ count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)
}
#endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */
static int verbose = 0;
static int wrote_question = 0;
#if defined(PNG_NO_STDIO)
@@ -584,10 +599,18 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
png_set_read_status_fn(read_ptr, NULL);
}
# if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
zero_samples=0;
png_set_write_user_transform_fn(write_ptr, count_zero_samples);
# endif
#if defined(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
#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
zero_samples=0;
png_set_write_user_transform_fn(write_ptr, count_zero_samples);
#endif
png_debug(0, "Reading info struct\n");
png_read_info(read_ptr, read_info_ptr);
@@ -859,7 +882,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
if (png_memcmp(inbuf, outbuf, num_in))
{
fprintf(STDERR, "Files %s and %s are different\n", inname, outname);
fprintf(STDERR, "\nFiles %s and %s are different\n", inname, outname);
if(wrote_question == 0)
{
fprintf(STDERR,
@@ -885,8 +908,8 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
/* input and output filenames */
#ifdef RISCOS
PNG_CONST char *inname = "pngtest/png";
PNG_CONST char *outname = "pngout/png";
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";
@@ -973,7 +996,7 @@ main(int argc, char *argv[])
#endif
for (i=2; i<argc; ++i)
{
int kerror;
int k, kerror;
fprintf(STDERR, "Testing %s:",argv[i]);
kerror = test_one_file(argv[i], outname);
if (kerror == 0)
@@ -983,6 +1006,12 @@ main(int argc, char *argv[])
#else
fprintf(STDERR, " PASS\n");
#endif
#if defined(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,filters_used[k]);
#endif
#if defined(PNG_TIME_RFC1123_SUPPORTED)
if(tIME_chunk_present != 0)
fprintf(STDERR, " tIME = %s\n",tIME_string);
@@ -1032,14 +1061,21 @@ main(int argc, char *argv[])
{
if(verbose == 1 || i == 2)
{
int k;
#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
fprintf(STDERR, " PASS (%lu zero samples)\n",zero_samples);
#else
fprintf(STDERR, " PASS\n");
#endif
#if defined(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,filters_used[k]);
#endif
#if defined(PNG_TIME_RFC1123_SUPPORTED)
if(tIME_chunk_present != 0)
fprintf(STDERR, " tIME = %s\n",tIME_string);
if(tIME_chunk_present != 0)
fprintf(STDERR, " tIME = %s\n",tIME_string);
#endif /* PNG_TIME_RFC1123_SUPPORTED */
}
}