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Imported from libpng-1.4.0beta20.tar

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This commit is contained in:
Glenn Randers-Pehrson
2008-07-10 09:13:13 -05:00
parent a7dbcba1e8
commit 145f5c8164
62 changed files with 2945 additions and 11047 deletions
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119
png.h
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@@ -1,15 +1,15 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.4.0beta19 - May 15, 2007
* Copyright (c) 1998-2007 Glenn Randers-Pehrson
* libpng version 1.4.0beta20 - July 10, 2008
* Copyright (c) 1998-2008 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.)
*
* 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 1.4.0beta19 - May 15, 2007: Glenn
* libpng versions 0.97, January 1998, through 1.4.0beta20 - July 1, 2008: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@@ -126,7 +126,7 @@
* 1.2.12 13 10212 12.so.0.10[.0]
* 1.4.0beta9-14 14 10400 14.so.0.0[.0]
* 1.2.13 13 10213 12.so.0.10[.0]
* 1.4.0beta15-19 14 10400 14.so.0.0[.0]
* 1.4.0beta15-20 14 10400 14.so.0.0[.0]
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@@ -156,7 +156,7 @@
* If you modify libpng you may insert additional notices immediately following
* this sentence.
*
* libpng versions 1.2.6, August 15, 2004, through 1.4.0beta19, May 15, 2007, are
* libpng versions 1.2.6, August 15, 2004, through 1.4.0beta20, July 1, 2008, are
* Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors:
@@ -268,13 +268,13 @@
* Y2K compliance in libpng:
* =========================
*
* May 15, 2007
* July 1, 2008
*
* 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 1.4.0beta19 are Y2K compliant. It is my belief that earlier
* upward through 1.4.0beta20 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
@@ -330,9 +330,9 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.4.0beta19"
#define PNG_LIBPNG_VER_STRING "1.4.0beta20"
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.4.0beta19 - May 15, 2007 (header)\n"
" libpng version 1.4.0beta20 - July 1, 2008 (header)\n"
#define PNG_LIBPNG_VER_SONUM 1
#define PNG_LIBPNG_VER_DLLNUM 14
@@ -344,7 +344,7 @@
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
#define PNG_LIBPNG_VER_BUILD 19
#define PNG_LIBPNG_VER_BUILD 21
/* Release Status */
#define PNG_LIBPNG_BUILD_ALPHA 1
@@ -1297,13 +1297,6 @@ struct png_struct_def
#endif
/* New members added in libpng-1.2.0 */
#if defined(PNG_MMX_CODE_SUPPORTED)
png_byte mmx_bitdepth_threshold;
png_uint_32 mmx_rowbytes_threshold;
#endif
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
png_uint_32 asm_flags;
#endif
/* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */
#ifdef PNG_USER_MEM_SUPPORTED
@@ -1332,18 +1325,24 @@ struct png_struct_def
png_uint_32 user_height_max;
#endif
/* New member added in libpng-1.4.0 */
#if defined(PNG_IO_STATE_SUPPORTED)
/* New members added in libpng-1.2.26 */
png_uint_32 old_big_row_buf_size, old_prev_row_size;
/* New members added in libpng-1.4.0 */
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
/* storage for unknown chunk that the library doesn't recognize. */
png_unknown_chunk unknown_chunk;
#endif
#ifdef PNG_IO_STATE_SUPPORTED
png_uint_32 io_state;
#endif
};
/* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number.
*/
typedef png_structp version_1_4_0beta19;
typedef png_structp version_1_4_0beta20;
typedef png_struct FAR * FAR * png_structpp;
@@ -2304,7 +2303,7 @@ extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr,
handling or default unknown chunk handling is not desired. Any chunks not
listed will be handled in the default manner. The IHDR and IEND chunks
must not be listed.
keep = 0: follow default behavour
keep = 0: follow default behaviour
= 1: do not keep
= 2: keep only if safe-to-copy
= 3: keep even if unsafe-to-copy
@@ -2412,71 +2411,6 @@ extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp
#define PNG_HANDLE_CHUNK_IF_SAFE 2
#define PNG_HANDLE_CHUNK_ALWAYS 3
/* Added to version 1.2.0 */
#if defined(PNG_MMX_CODE_SUPPORTED)
#define PNG_ASM_FLAG_MMX_SUPPORT_COMPILED 0x01 /* not user-settable */
#define PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU 0x02 /* not user-settable */
#define PNG_ASM_FLAG_MMX_READ_COMBINE_ROW 0x04
#define PNG_ASM_FLAG_MMX_READ_INTERLACE 0x08
#define PNG_ASM_FLAG_MMX_READ_FILTER_SUB 0x10
#define PNG_ASM_FLAG_MMX_READ_FILTER_UP 0x20
#define PNG_ASM_FLAG_MMX_READ_FILTER_AVG 0x40
#define PNG_ASM_FLAG_MMX_READ_FILTER_PAETH 0x80
#define PNG_MMX_FLAGS_INITIALIZED 0x80000000 /* not user-settable */
#define PNG_MMX_READ_FLAGS ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \
| PNG_ASM_FLAG_MMX_READ_INTERLACE \
| PNG_ASM_FLAG_MMX_READ_FILTER_SUB \
| PNG_ASM_FLAG_MMX_READ_FILTER_UP \
| PNG_ASM_FLAG_MMX_READ_FILTER_AVG \
| PNG_ASM_FLAG_MMX_READ_FILTER_PAETH )
#define PNG_MMX_WRITE_FLAGS ( 0 )
#define PNG_MMX_FLAGS ( PNG_ASM_FLAG_MMX_SUPPORT_COMPILED \
| PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU \
| PNG_ASM_MMX_READ_FLAGS \
| PNG_ASM_MMX_WRITE_FLAGS )
#define PNG_SELECT_READ 1
#define PNG_SELECT_WRITE 2
/* pngget.c */
extern PNG_EXPORT(png_uint_32,png_get_mmx_flagmask)
PNGARG((int flag_select, int *compilerID));
/* pngget.c */
extern PNG_EXPORT(png_byte,png_get_mmx_bitdepth_threshold)
PNGARG((png_structp png_ptr));
/* pngget.c */
extern PNG_EXPORT(png_uint_32,png_get_mmx_rowbytes_threshold)
PNGARG((png_structp png_ptr));
/* pngset.c */
extern PNG_EXPORT(void,png_set_asm_flags)
PNGARG((png_structp png_ptr, png_uint_32 asm_flags));
/* pngset.c */
extern PNG_EXPORT(void,png_set_mmx_thresholds)
PNGARG((png_structp png_ptr, png_byte mmx_bitdepth_threshold,
png_uint_32 mmx_rowbytes_threshold));
#endif /* PNG_MMX_CODE_SUPPORTED */
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
/* pngget.c */
extern PNG_EXPORT(png_uint_32,png_get_asm_flagmask)
PNGARG((int flag_select));
/* pngget.c */
extern PNG_EXPORT(png_uint_32,png_get_asm_flags)
PNGARG((png_structp png_ptr));
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
/* png.c, pnggccrd.c, or pngvcrd.c */
extern PNG_EXPORT(int,png_mmx_support) PNGARG((void));
/* Strip the prepended error numbers ("#nnn ") from error and warning
* messages before passing them to the error or warning handler. */
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
@@ -2617,6 +2551,17 @@ extern PNG_EXPORT(void,png_save_uint_16)
/* ************************************************************************* */
/* Various modes of operation. Note that after an init, mode is set to
* zero automatically when the structure is created.
*/
#define PNG_HAVE_IHDR 0x01
#define PNG_HAVE_PLTE 0x02
#define PNG_HAVE_IDAT 0x04
#define PNG_AFTER_IDAT 0x08 /* Have complete zlib datastream */
#define PNG_HAVE_IEND 0x10
#define PNG_HAVE_gAMA 0x20
#define PNG_HAVE_cHRM 0x40
#ifdef __cplusplus
}
#endif