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Imported from libpng-1.2.19beta2.tar

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This commit is contained in:
Glenn Randers-Pehrson
2007-05-19 00:36:49 -05:00
parent 4d27f6b77b
commit 12f8283560
55 changed files with 152 additions and 141 deletions
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26
png.c
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@@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* Last changed in libpng 1.2.19 May 18, 2007
* Last changed in libpng 1.2.19 May 19, 2007
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2007 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -13,7 +13,7 @@
#include "png.h"
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_2_19beta1 Your_png_h_is_not_version_1_2_19beta1;
typedef version_1_2_19beta2 Your_png_h_is_not_version_1_2_19beta2;
/* Version information for C files. This had better match the version
* string defined in png.h. */
@@ -705,12 +705,11 @@ png_sig_bytes(void)
png_charp PNGAPI
png_get_copyright(png_structp png_ptr)
{
if (png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return ((png_charp) "\n libpng version 1.2.19beta1 - May 18, 2007\n\
png_ptr = png_ptr; /* silence compiler warning about unused png_ptr */
return ((png_charp) "\n libpng version 1.2.19beta2 - May 19, 2007\n\
Copyright (c) 1998-2007 Glenn Randers-Pehrson\n\
Copyright (c) 1996-1997 Andreas Dilger\n\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n");
return ((png_charp) "");
}
/* The following return the library version as a short string in the
@@ -725,27 +724,24 @@ png_charp PNGAPI
png_get_libpng_ver(png_structp png_ptr)
{
/* Version of *.c files used when building libpng */
if (png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return ((png_charp) PNG_LIBPNG_VER_STRING);
return ((png_charp) "");
png_ptr = png_ptr; /* silence compiler warning about unused png_ptr */
return ((png_charp) PNG_LIBPNG_VER_STRING);
}
png_charp PNGAPI
png_get_header_ver(png_structp png_ptr)
{
/* Version of *.h files used when building libpng */
if (png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return ((png_charp) PNG_LIBPNG_VER_STRING);
return ((png_charp) "");
png_ptr = png_ptr; /* silence compiler warning about unused png_ptr */
return ((png_charp) PNG_LIBPNG_VER_STRING);
}
png_charp PNGAPI
png_get_header_version(png_structp png_ptr)
{
/* Returns longer string containing both version and date */
if (png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return ((png_charp) PNG_HEADER_VERSION_STRING);
return ((png_charp) "");
png_ptr = png_ptr; /* silence compiler warning about unused png_ptr */
return ((png_charp) PNG_HEADER_VERSION_STRING);
}
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
@@ -756,7 +752,7 @@ png_handle_as_unknown(png_structp png_ptr, png_bytep chunk_name)
/* check chunk_name and return "keep" value if it's on the list, else 0 */
int i;
png_bytep p;
if((png_ptr == NULL && chunk_name == NULL) || png_ptr->num_chunk_list<=0)
if(png_ptr == NULL || chunk_name == NULL || png_ptr->num_chunk_list<=0)
return 0;
p=png_ptr->chunk_list+png_ptr->num_chunk_list*5-5;
for (i = png_ptr->num_chunk_list; i; i--, p-=5)