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[master] Added const_png_structp and const_png_infop types, and used them in

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prototypes for most png_get_*() functions.
In the manual, describe the png_get_IHDR() arguments in the correct order.
This commit is contained in:
Glenn Randers-Pehrson
2011-01-21 11:09:07 -06:00
parent 23c2ea38a6
commit 379d0160ea
14 changed files with 300 additions and 277 deletions
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18
png.c
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@@ -1,8 +1,8 @@
/* png.c - location for general purpose libpng functions
*
* Last changed in libpng 1.4.2 [May 6, 2010]
* Copyright (c) 1998-2010 Glenn Randers-Pehrson
* Last changed in libpng 1.4.6 [January 21, 2011]
* Copyright (c) 1998-2011 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.)
*
@@ -470,7 +470,7 @@ png_info_destroy(png_structp png_ptr, png_infop info_ptr)
* pointer before png_write_destroy() or png_read_destroy() are called.
*/
png_voidp PNGAPI
png_get_io_ptr(png_structp png_ptr)
png_get_io_ptr(const_png_structp png_ptr)
{
if (png_ptr == NULL)
return (NULL);
@@ -539,7 +539,7 @@ png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */
png_charp PNGAPI
png_get_copyright(png_structp png_ptr)
png_get_copyright(const_png_structp png_ptr)
{
png_ptr = png_ptr; /* Silence compiler warning about unused png_ptr */
#ifdef PNG_STRING_COPYRIGHT
@@ -547,13 +547,13 @@ png_get_copyright(png_structp png_ptr)
#else
#ifdef __STDC__
return ((png_charp) PNG_STRING_NEWLINE \
"libpng version 1.4.6beta04 - January 15, 2011" PNG_STRING_NEWLINE \
"libpng version 1.4.6beta04 - January 21, 2011" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2010 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE);
#else
return ((png_charp) "libpng version 1.4.6beta04 - January 15, 2011\
return ((png_charp) "libpng version 1.4.6beta04 - January 21, 2011\
Copyright (c) 1998-2010 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");
@@ -570,7 +570,7 @@ png_get_copyright(png_structp png_ptr)
* it is guaranteed that png.c uses the correct version of png.h.
*/
png_charp PNGAPI
png_get_libpng_ver(png_structp png_ptr)
png_get_libpng_ver(const_png_structp png_ptr)
{
/* Version of *.c files used when building libpng */
png_ptr = png_ptr; /* Silence compiler warning about unused png_ptr */
@@ -578,7 +578,7 @@ png_get_libpng_ver(png_structp png_ptr)
}
png_charp PNGAPI
png_get_header_ver(png_structp png_ptr)
png_get_header_ver(const_png_structp png_ptr)
{
/* Version of *.h files used when building libpng */
png_ptr = png_ptr; /* Silence compiler warning about unused png_ptr */
@@ -586,7 +586,7 @@ png_get_header_ver(png_structp png_ptr)
}
png_charp PNGAPI
png_get_header_version(png_structp png_ptr)
png_get_header_version(const_png_structp png_ptr)
{
/* Returns longer string containing both version and date */
png_ptr = png_ptr; /* Silence compiler warning about unused png_ptr */