mirror of
https://git.code.sf.net/p/libpng/code.git
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Imported from pngcrush-1.5.7.tar
This commit is contained in:
Glenn Randers-Pehrson
108
png.h
108
png.h
@@ -1,7 +1,7 @@
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/* png.h - header file for PNG reference library
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*
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* libpng version 1.0.12 - June 8, 2001
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* libpng version 1.2.0 - September 1, 2001
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* Copyright (c) 1998-2001 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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@@ -9,7 +9,7 @@
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* Authors and maintainers:
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* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
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* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
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* libpng versions 0.97, January 1998, through 1.0.12 - June 8, 2001: Glenn
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* libpng versions 0.97, January 1998, through 1.2.0 - September 1, 2001: Glenn
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* See also "Contributing Authors", below.
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*
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* Note about libpng version numbers:
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@@ -70,7 +70,12 @@
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* 1.0.11beta1-3 1 10011 2.1.0.11beta1-3
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* 1.0.11rc1 1 10011 2.1.0.11rc1
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* 1.0.11 1 10011 2.1.0.11
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* 1.0.12beta1-2 2 10012 2.1.0.11beta1-2
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* 1.0.12beta1-2 2 10012 2.1.0.12beta1-2
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* 1.0.12rc1 2 10012 2.1.0.12rc1
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* 1.0.12 2 10012 2.1.0.12
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* 1.1.0a-f - 10100 2.1.1.0a-f (branch abandoned)
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* 1.2.0beta1-2 2 10200 2.1.2.0beta1-2
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* 1.2.0beta3-4 3 10200 3.1.2.0beta3-4
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*
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* Henceforth the source version will match the shared-library major
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* and minor numbers; the shared-library major version number will be
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@@ -100,7 +105,7 @@
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* If you modify libpng you may insert additional notices immediately following
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* this sentence.
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*
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* libpng versions 1.0.7, July 1, 2000, through 1.0.12, June 8, 2001, are
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* libpng versions 1.0.7, July 1, 2000, through 1.2.0, September 1, 2001, are
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* Copyright (c) 2000, 2001 Glenn Randers-Pehrson, and are
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* distributed according to the same disclaimer and license as libpng-1.0.6
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* with the following individuals added to the list of Contributing Authors
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@@ -205,13 +210,13 @@
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* Y2K compliance in libpng:
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* =========================
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*
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* June 8, 2001
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* September 1, 2001
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*
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* Since the PNG Development group is an ad-hoc body, we can't make
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* an official declaration.
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*
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* This is your unofficial assurance that libpng from version 0.71 and
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* upward through 1.0.12 are Y2K compliant. It is my belief that earlier
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* upward through 1.2.0 are Y2K compliant. It is my belief that earlier
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* versions were also Y2K compliant.
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*
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* Libpng only has three year fields. One is a 2-byte unsigned integer
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@@ -267,15 +272,15 @@
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*/
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/* Version information for png.h - this should match the version in png.c */
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#define PNG_LIBPNG_VER_STRING "1.0.12"
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#define PNG_LIBPNG_VER_STRING "1.2.0"
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#define PNG_LIBPNG_VER_SONUM 2
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#define PNG_LIBPNG_VER_SONUM 3
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#define PNG_LIBPNG_VER_DLLNUM %DLLNUM%
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/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
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#define PNG_LIBPNG_VER_MAJOR 1
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#define PNG_LIBPNG_VER_MINOR 0
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#define PNG_LIBPNG_VER_RELEASE 12
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#define PNG_LIBPNG_VER_MINOR 2
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#define PNG_LIBPNG_VER_RELEASE 0
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/* This should match the numeric part of the final component of
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* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
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@@ -294,7 +299,7 @@
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* Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only
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* version 1.0.0 was mis-numbered 100 instead of 10000). From
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* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */
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#define PNG_LIBPNG_VER 10012 /* 1.0.12 */
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#define PNG_LIBPNG_VER 10200 /* 1.2.0 */
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#ifndef PNG_VERSION_INFO_ONLY
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@@ -1171,7 +1176,7 @@ struct png_struct_def
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defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
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defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
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/* changed from png_byte to png_uint_32 at version 1.2.0 */
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png_byte mng_features_permitted;
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png_uint_32 mng_features_permitted;
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#endif
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/* New member added in libpng-1.0.7 */
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@@ -1203,13 +1208,15 @@ struct png_struct_def
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png_free_ptr free_fn; /* function for freeing memory */
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#endif
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png_bytep big_row_buf; /* buffer to save current (unfiltered) row */
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};
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/* This prevents a compiler error in png_get_copyright() in png.c if png.c
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and png.h are both at version 1.0.12
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and png.h are both at version 1.2.0
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*/
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typedef png_structp version_1_0_12;
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typedef png_structp version_1_2_0;
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typedef png_struct FAR * FAR * png_structpp;
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@@ -2253,11 +2260,68 @@ extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp
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png_ptr, png_uint_32 mng_features_permitted));
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#endif
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/* png_mmx_support will be included unconditionally starting in version 1.2.0 */
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#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) || defined(PNG_USE_PNGGCCRD)
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/* Added to version 1.2.0 */
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#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
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#define PNG_ASM_FLAG_MMX_SUPPORT_COMPILED 0x01 /* not user-settable */
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#define PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU 0x02 /* not user-settable */
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#define PNG_ASM_FLAG_MMX_READ_COMBINE_ROW 0x04
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#define PNG_ASM_FLAG_MMX_READ_INTERLACE 0x08
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#define PNG_ASM_FLAG_MMX_READ_FILTER_SUB 0x10
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#define PNG_ASM_FLAG_MMX_READ_FILTER_UP 0x20
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#define PNG_ASM_FLAG_MMX_READ_FILTER_AVG 0x40
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#define PNG_ASM_FLAG_MMX_READ_FILTER_PAETH 0x80
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#define PNG_ASM_FLAGS_INITIALIZED 0x80000000 /* not user-settable */
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#define PNG_MMX_READ_FLAGS ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \
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| PNG_ASM_FLAG_MMX_READ_INTERLACE \
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| PNG_ASM_FLAG_MMX_READ_FILTER_SUB \
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| PNG_ASM_FLAG_MMX_READ_FILTER_UP \
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| PNG_ASM_FLAG_MMX_READ_FILTER_AVG \
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| PNG_ASM_FLAG_MMX_READ_FILTER_PAETH )
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#define PNG_MMX_WRITE_FLAGS ( 0 )
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#define PNG_MMX_FLAGS ( PNG_ASM_FLAG_MMX_SUPPORT_COMPILED \
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| PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU \
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| PNG_MMX_READ_FLAGS \
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| PNG_MMX_WRITE_FLAGS )
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#define PNG_SELECT_READ 1
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#define PNG_SELECT_WRITE 2
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/* pngget.c */
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extern PNG_EXPORT(png_uint_32,png_get_mmx_flagmask)
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PNGARG((int flag_select, int *compilerID));
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/* pngget.c */
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extern PNG_EXPORT(png_uint_32,png_get_asm_flagmask)
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PNGARG((int flag_select));
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/* pngget.c */
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extern PNG_EXPORT(png_uint_32,png_get_asm_flags)
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PNGARG((png_structp png_ptr));
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/* pngget.c */
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extern PNG_EXPORT(png_byte,png_get_mmx_bitdepth_threshold)
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PNGARG((png_structp png_ptr));
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/* pngget.c */
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extern PNG_EXPORT(png_uint_32,png_get_mmx_rowbytes_threshold)
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PNGARG((png_structp png_ptr));
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/* pngset.c */
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extern PNG_EXPORT(void,png_set_asm_flags)
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PNGARG((png_structp png_ptr, png_uint_32 asm_flags));
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/* pngset.c */
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extern PNG_EXPORT(void,png_set_mmx_thresholds)
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PNGARG((png_structp png_ptr, png_byte mmx_bitdepth_threshold,
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png_uint_32 mmx_rowbytes_threshold));
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#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
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/* png.c, pnggccrd.c, or pngvcrd.c */
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extern PNG_EXPORT(int,png_mmx_support) PNGARG((void));
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#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
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/* Strip the prepended error numbers ("#nnn ") from error and warning
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* messages before passing them to the error or warning handler. */
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@@ -2269,7 +2333,7 @@ extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
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/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
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#define PNG_HEADER_VERSION_STRING \
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" libpng version 1.0.12 - June 8, 2001 (header)\n"
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" libpng version 1.2.0 - September 1, 2001 (header)\n"
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#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
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/* With these routines we avoid an integer divide, which will be slower on
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@@ -2589,7 +2653,7 @@ PNG_EXTERN void png_flush PNGARG((png_structp png_ptr));
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*/
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PNG_EXTERN void png_save_uint_32 PNGARG((png_bytep buf, png_uint_32 i));
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#if defined(PNG_WRITE_pCAL_SUPPORTED)
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#if defined(PNG_WRITE_pCAL_SUPPORTED) || defined(PNG_WRITE_oFFs_SUPPORTED)
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PNG_EXTERN void png_save_int_32 PNGARG((png_bytep buf, png_int_32 i));
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#endif
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@@ -2707,7 +2771,7 @@ PNG_EXTERN void png_write_iTXt PNGARG((png_structp png_ptr,
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#if defined(PNG_WRITE_oFFs_SUPPORTED)
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PNG_EXTERN void png_write_oFFs PNGARG((png_structp png_ptr,
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png_uint_32 x_offset, png_uint_32 y_offset, int unit_type));
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png_int_32 x_offset, png_int_32 y_offset, int unit_type));
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#endif
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#if defined(PNG_WRITE_pCAL_SUPPORTED)
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@@ -3075,6 +3139,10 @@ PNG_EXTERN void png_do_write_intrapixel PNGARG((png_row_infop row_info,
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png_bytep row));
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#endif
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#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
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/* png.c */ /* PRIVATE */
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PNG_EXTERN void png_init_mmx_flags PNGARG((png_structp png_ptr));
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#endif
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/* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */
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#endif /* PNG_INTERNAL */
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