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Imported from libpng-1.2.3rc2.tar

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This commit is contained in:
Glenn Randers-Pehrson
2002-05-01 11:51:26 -05:00
parent 03008a08d1
commit 25d8224d15
60 changed files with 190 additions and 157 deletions
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49
png.h
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@@ -1,6 +1,6 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.2.3rc1 - April 27, 2002
* libpng version 1.2.3rc2 - May 1, 2002
* Copyright (c) 1998-2002 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.)
@@ -8,7 +8,7 @@
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.2.3rc1 - April 27, 2002: Glenn
* libpng versions 0.97, January 1998, through 1.2.3rc2 - May 1, 2002: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@@ -116,7 +116,7 @@
* If you modify libpng you may insert additional notices immediately following
* this sentence.
*
* libpng versions 1.0.7, July 1, 2000, through 1.2.3rc1, April 27, 2002, are
* libpng versions 1.0.7, July 1, 2000, through 1.2.3rc2, May 1, 2002, are
* Copyright (c) 2000-2001 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.0.6
* with the following individuals added to the list of Contributing Authors
@@ -221,13 +221,13 @@
* Y2K compliance in libpng:
* =========================
*
* April 27, 2002
* May 1, 2002
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
*
* This is your unofficial assurance that libpng from version 0.71 and
* upward through 1.2.3rc1 are Y2K compliant. It is my belief that earlier
* upward through 1.2.3rc2 are Y2K compliant. It is my belief that earlier
* versions were also Y2K compliant.
*
* Libpng only has three year fields. One is a 2-byte unsigned integer
@@ -283,7 +283,7 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.2.3rc1"
#define PNG_LIBPNG_VER_STRING "1.2.3rc2"
#define PNG_LIBPNG_VER_SONUM 0
#define PNG_LIBPNG_VER_DLLNUM %DLLNUM%
@@ -295,7 +295,7 @@
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
#define PNG_LIBPNG_VER_BUILD 1
#define PNG_LIBPNG_VER_BUILD 2
#define PNG_LIBPNG_BUILD_ALPHA 1
#define PNG_LIBPNG_BUILD_BETA 2
@@ -1263,9 +1263,9 @@ struct png_struct_def
/* This prevents a compiler error in png.c if png.c and png.h are both at
version 1.2.3rc1
version 1.2.3rc2
*/
typedef png_structp version_1_2_3rc1;
typedef png_structp version_1_2_3rc2;
typedef png_struct FAR * FAR * png_structpp;
@@ -1736,10 +1736,16 @@ extern PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr));
extern PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr,
png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn));
extern PNG_EXPORT(void,png_default_write_data) PNGARG((png_structp png_ptr,
png_bytep data, png_size_t length));
/* Replace the default data input function with a user supplied one. */
extern PNG_EXPORT(void,png_set_read_fn) PNGARG((png_structp png_ptr,
png_voidp io_ptr, png_rw_ptr read_data_fn));
extern PNG_EXPORT(void,png_default_read_data) PNGARG((png_structp png_ptr,
png_bytep data, png_size_t length));
/* Return the user pointer associated with the I/O functions */
extern PNG_EXPORT(png_voidp,png_get_io_ptr) PNGARG((png_structp png_ptr));
@@ -1817,6 +1823,13 @@ extern PNG_EXPORT(png_voidp,png_malloc) PNGARG((png_structp png_ptr,
/* frees a pointer allocated by png_malloc() */
extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr));
/* Function to allocate memory for zlib. */
extern PNG_EXPORT(voidpf,png_zalloc) PNGARG((voidpf png_ptr, uInt items,
uInt size));
/* Function to free memory for zlib */
extern PNG_EXPORT(void,png_zfree) PNGARG((voidpf png_ptr, voidpf ptr));
/* Free data that was allocated internally */
extern PNG_EXPORT(void,png_free_data) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_uint_32 free_me, int num));
@@ -2229,6 +2242,11 @@ PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep
chunk_name));
#endif
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
PNG_EXPORT(void,png_push_fill_buffer) PNGARG((png_structp png_ptr,
png_bytep buffer, png_size_t length));
#endif
/* Png_free_data() will turn off the "valid" flag for anything it frees.
If you need to turn it off for a chunk that your application has freed,
you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); */
@@ -2387,7 +2405,7 @@ extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.2.3rc1 - April 27, 2002 (header)\n"
" libpng version 1.2.3rc2 - May 1, 2002 (header)\n"
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
/* With these routines we avoid an integer divide, which will be slower on
@@ -2656,12 +2674,6 @@ PNG_EXTERN void png_destroy_struct_2 PNGARG((png_voidp struct_ptr,
PNG_EXTERN void png_info_destroy PNGARG((png_structp png_ptr,
png_infop info_ptr));
/* Function to allocate memory for zlib. */
PNG_EXTERN voidpf png_zalloc PNGARG((voidpf png_ptr, uInt items, uInt size));
/* Function to free memory for zlib */
PNG_EXTERN void png_zfree PNGARG((voidpf png_ptr, voidpf ptr));
/* Reset the CRC variable */
PNG_EXTERN void png_reset_crc PNGARG((png_structp png_ptr));
@@ -2700,6 +2712,9 @@ PNG_EXTERN void png_calculate_crc PNGARG((png_structp png_ptr, png_bytep ptr,
#if defined(PNG_WRITE_FLUSH_SUPPORTED)
PNG_EXTERN void png_flush PNGARG((png_structp png_ptr));
#if !defined(PNG_NO_STDIO)
PNG_EXTERN void png_default_flush PNGARG((png_structp png_ptr));
#endif
#endif
/* Place a 32-bit number into a buffer in PNG byte order (big-endian).
@@ -3145,8 +3160,6 @@ PNG_EXTERN void png_push_check_crc PNGARG((png_structp png_ptr));
PNG_EXTERN void png_push_crc_skip PNGARG((png_structp png_ptr,
png_uint_32 length));
PNG_EXTERN void png_push_crc_finish PNGARG((png_structp png_ptr));
PNG_EXTERN void png_push_fill_buffer PNGARG((png_structp png_ptr,
png_bytep buffer, png_size_t length));
PNG_EXTERN void png_push_save_buffer PNGARG((png_structp png_ptr));
PNG_EXTERN void png_push_restore_buffer PNGARG((png_structp png_ptr,
png_bytep buffer, png_size_t buffer_length));