diff options
Diffstat (limited to 'png/png.h')
| -rw-r--r-- | png/png.h | 283 |
1 files changed, 214 insertions, 69 deletions
@@ -1,14 +1,15 @@ + /* png.h - header file for PNG reference library * - * libpng version 1.2.7 - September 12, 2004 - * Copyright (c) 1998-2005 Glenn Randers-Pehrson + * libpng version 1.2.16 - January 31, 2007 + * Copyright (c) 1998-2007 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 1.2.7 - September 12, 2004: Glenn + * libpng versions 0.97, January 1998, through 1.2.16 - January 31, 2007: Glenn * See also "Contributing Authors", below. * * Note about libpng version numbers: @@ -102,10 +103,46 @@ * 1.0.16 10 10016 10.so.0.1.0.16 * 1.2.6 13 10206 12.so.0.1.2.6 * 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2 - * 1.0.17rc1 10 10017 12.so.0.1.0.17rc1 + * 1.0.17rc1 10 10017 10.so.0.1.0.17rc1 * 1.2.7rc1 13 10207 12.so.0.1.2.7rc1 - * 1.0.17 10 10017 12.so.0.1.0.17 + * 1.0.17 10 10017 10.so.0.1.0.17 * 1.2.7 13 10207 12.so.0.1.2.7 + * 1.2.8beta1-5 13 10208 12.so.0.1.2.8beta1-5 + * 1.0.18rc1-5 10 10018 10.so.0.1.0.18rc1-5 + * 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5 + * 1.0.18 10 10018 10.so.0.1.0.18 + * 1.2.8 13 10208 12.so.0.1.2.8 + * 1.2.9beta1-3 13 10209 12.so.0.1.2.9beta1-3 + * 1.2.9beta4-11 13 10209 12.so.0.9[.0] + * 1.2.9rc1 13 10209 12.so.0.9[.0] + * 1.2.9 13 10209 12.so.0.9[.0] + * 1.2.10beta1-8 13 10210 12.so.0.10[.0] + * 1.2.10rc1-3 13 10210 12.so.0.10[.0] + * 1.2.10 13 10210 12.so.0.10[.0] + * 1.2.11beta1-4 13 10211 12.so.0.11[.0] + * 1.0.19rc1-5 10 10019 10.so.0.19[.0] + * 1.2.11rc1-5 13 10211 12.so.0.11[.0] + * 1.0.19 10 10019 10.so.0.19[.0] + * 1.2.11 13 10211 12.so.0.11[.0] + * 1.0.20 10 10020 10.so.0.20[.0] + * 1.2.12 13 10212 12.so.0.12[.0] + * 1.2.13beta1 13 10213 12.so.0.13[.0] + * 1.0.21 10 10021 10.so.0.21[.0] + * 1.2.13 13 10213 12.so.0.13[.0] + * 1.2.14beta1-2 13 10214 12.so.0.14[.0] + * 1.0.22rc1 10 10022 10.so.0.22[.0] + * 1.2.14rc1 13 10214 12.so.0.14[.0] + * 1.0.22 10 10022 10.so.0.22[.0] + * 1.2.14 13 10214 12.so.0.14[.0] + * 1.2.15beta1-6 13 10215 12.so.0.15[.0] + * 1.0.23rc1-5 10 10023 10.so.0.23[.0] + * 1.2.15rc1-5 13 10215 12.so.0.15[.0] + * 1.0.23 10 10023 10.so.0.23[.0] + * 1.2.15 13 10215 12.so.0.15[.0] + * 1.2.16beta1-2 13 10216 12.so.0.16[.0] + * 1.2.16rc1 13 10216 12.so.0.16[.0] + * 1.0.24 10 10024 10.so.0.24[.0] + * 1.2.16 13 10216 12.so.0.16[.0] * * Henceforth the source version will match the shared-library major * and minor numbers; the shared-library major version number will be @@ -135,8 +172,8 @@ * If you modify libpng you may insert additional notices immediately following * this sentence. * - * libpng versions 1.2.6, August 15, 2004, through 1.2.7, September 12, 2004, are - * Copyright (c) 2004 Glenn Randers-Pehrson, and are + * libpng versions 1.2.6, August 15, 2004, through 1.2.16, January 31, 2007, are + * Copyright (c) 2004, 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: * @@ -247,13 +284,13 @@ * Y2K compliance in libpng: * ========================= * - * September 12, 2004 + * January 31, 2007 * * 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 1.2.7 are Y2K compliant. It is my belief that earlier + * upward through 1.2.16 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 @@ -309,45 +346,81 @@ */ /* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.2.7" +#define PNG_LIBPNG_VER_STRING "1.2.16" #define PNG_HEADER_VERSION_STRING \ - " libpng version 1.2.7 - September 12, 2004 (header)\n" + " libpng version 1.2.16 - January 31, 2007 (header)\n" #define PNG_LIBPNG_VER_SONUM 0 -#define PNG_LIBPNG_VER_DLLNUM %DLLNUM% +#define PNG_LIBPNG_VER_DLLNUM 13 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ #define PNG_LIBPNG_VER_MAJOR 1 #define PNG_LIBPNG_VER_MINOR 2 -#define PNG_LIBPNG_VER_RELEASE 7 +#define PNG_LIBPNG_VER_RELEASE 16 /* This should match the numeric part of the final component of * PNG_LIBPNG_VER_STRING, omitting any leading zero: */ #define PNG_LIBPNG_VER_BUILD 0 +/* Release Status */ #define PNG_LIBPNG_BUILD_ALPHA 1 #define PNG_LIBPNG_BUILD_BETA 2 #define PNG_LIBPNG_BUILD_RC 3 #define PNG_LIBPNG_BUILD_STABLE 4 -#define PNG_LIBPNG_BUILD_TYPEMASK 7 -#define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with STABLE only */ -#define PNG_LIBPNG_BUILD_TYPE 4 +#define PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK 7 + +/* Release-Specific Flags */ +#define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with + PNG_LIBPNG_BUILD_STABLE only */ +#define PNG_LIBPNG_BUILD_PRIVATE 16 /* Cannot be OR'ed with + PNG_LIBPNG_BUILD_SPECIAL */ +#define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with + PNG_LIBPNG_BUILD_PRIVATE */ + +#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE /* Careful here. At one time, Guy wanted to use 082, but that would be octal. * We must not include leading zeros. * Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only * version 1.0.0 was mis-numbered 100 instead of 10000). From * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */ -#define PNG_LIBPNG_VER 10207 /* 1.2.7 */ +#define PNG_LIBPNG_VER 10216 /* 1.2.16 */ #ifndef PNG_VERSION_INFO_ONLY - /* include the compression library's header */ #include "zlib.h" +#endif /* include all user configurable info, including optional assembler routines */ #include "pngconf.h" +/* + * Added at libpng-1.2.8 */ +/* Ref MSDN: Private as priority over Special + * VS_FF_PRIVATEBUILD File *was not* built using standard release + * procedures. If this value is given, the StringFileInfo block must + * contain a PrivateBuild string. + * + * VS_FF_SPECIALBUILD File *was* built by the original company using + * standard release procedures but is a variation of the standard + * file of the same version number. If this value is given, the + * StringFileInfo block must contain a SpecialBuild string. + */ + +#if defined(PNG_USER_PRIVATEBUILD) +# define PNG_LIBPNG_BUILD_TYPE \ + (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_PRIVATE) +#else +# if defined(PNG_LIBPNG_SPECIALBUILD) +# define PNG_LIBPNG_BUILD_TYPE \ + (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_SPECIAL) +# else +# define PNG_LIBPNG_BUILD_TYPE (PNG_LIBPNG_BUILD_BASE_TYPE) +# endif +#endif + +#ifndef PNG_VERSION_INFO_ONLY + /* Inhibit C++ name-mangling for libpng functions but not for system calls. */ #ifdef __cplusplus extern "C" { @@ -414,7 +487,7 @@ PNG_EXPORT_VAR (const int FARDATA) png_pass_ystart[7]; PNG_EXPORT_VAR (const int FARDATA) png_pass_yinc[7]; PNG_EXPORT_VAR (const int FARDATA) png_pass_mask[7]; PNG_EXPORT_VAR (const int FARDATA) png_pass_dsp_mask[7]; -#ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW +#ifdef PNG_USE_PNGGCCRD PNG_EXPORT_VAR (const int FARDATA) png_pass_width[7]; #endif /* This isn't currently used. If you need it, see png.c for more details. @@ -851,10 +924,12 @@ typedef png_info FAR * FAR * png_infopp; /* Maximum positive integer used in PNG is (2^31)-1 */ #define PNG_UINT_31_MAX ((png_uint_32)0x7fffffffL) -#define PNG_UINT_32_MAX (~((png_uint_32)0)) -#define PNG_SIZE_MAX (~((png_size_t)0)) +#define PNG_UINT_32_MAX ((png_uint_32)(-1)) +#define PNG_SIZE_MAX ((png_size_t)(-1)) +#if defined(PNG_1_0_X) || defined (PNG_1_2_X) /* PNG_MAX_UINT is deprecated; use PNG_UINT_31_MAX instead. */ #define PNG_MAX_UINT PNG_UINT_31_MAX +#endif /* These describe the color_type field in png_info. */ /* color type masks */ @@ -1276,10 +1351,14 @@ struct png_struct_def #endif /* New members added in libpng-1.2.0 */ -#if !defined(PNG_1_0_X) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) +#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) +# if !defined(PNG_1_0_X) +# if defined(PNG_MMX_CODE_SUPPORTED) png_byte mmx_bitdepth_threshold; png_uint_32 mmx_rowbytes_threshold; +# endif png_uint_32 asm_flags; +# endif #endif /* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */ @@ -1315,7 +1394,7 @@ struct png_struct_def /* 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_2_7; +typedef png_structp version_1_2_16; typedef png_struct FAR * FAR * png_structpp; @@ -1401,11 +1480,14 @@ extern PNG_EXPORT(void,png_write_chunk_end) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(png_infop,png_create_info_struct) PNGARG((png_structp png_ptr)); +#if defined(PNG_1_0_X) || defined (PNG_1_2_X) /* Initialize the info structure (old interface - DEPRECATED) */ extern PNG_EXPORT(void,png_info_init) PNGARG((png_infop info_ptr)); #undef png_info_init #define png_info_init(info_ptr) png_info_init_3(&info_ptr,\ png_sizeof(png_info)); +#endif + extern PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr, png_size_t png_info_struct_size)); @@ -1442,9 +1524,16 @@ extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime, #if defined(PNG_READ_EXPAND_SUPPORTED) /* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */ extern PNG_EXPORT(void,png_set_expand) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(void,png_set_gray_1_2_4_to_8) PNGARG((png_structp png_ptr)); +#if !defined(PNG_1_0_X) +extern PNG_EXPORT(void,png_set_expand_gray_1_2_4_to_8) PNGARG((png_structp + png_ptr)); +#endif extern PNG_EXPORT(void,png_set_palette_to_rgb) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(void,png_set_tRNS_to_alpha) PNGARG((png_structp png_ptr)); +#if defined(PNG_1_0_X) || defined (PNG_1_2_X) +/* Deprecated */ +extern PNG_EXPORT(void,png_set_gray_1_2_4_to_8) PNGARG((png_structp png_ptr)); +#endif #endif #if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) @@ -1565,6 +1654,7 @@ extern PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr, #endif #endif +#if defined(PNG_1_0_X) || defined (PNG_1_2_X) #if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) /* Permit or disallow empty PLTE (0: not permitted, 1: permitted) */ @@ -1572,6 +1662,7 @@ extern PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_permit_empty_plte) PNGARG((png_structp png_ptr, int empty_plte_permitted)); #endif +#endif #if defined(PNG_WRITE_FLUSH_SUPPORTED) /* Set how many lines between output flushes - 0 for no flushing */ @@ -2286,11 +2377,12 @@ extern PNG_EXPORT(png_uint_32,png_get_sCAL_s) PNGARG((png_structp png_ptr, #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_sCAL) PNGARG((png_structp png_ptr, png_infop info_ptr, int unit, double width, double height)); -#endif +#else #ifdef PNG_FIXED_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr, png_infop info_ptr, int unit, png_charp swidth, png_charp sheight)); #endif +#endif #endif /* PNG_sCAL_SUPPORTED || PNG_WRITE_sCAL_SUPPORTED */ #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) @@ -2386,7 +2478,9 @@ extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr, #define png_debug2(l, m, p1, p2) #endif +#if 0 extern PNG_EXPORT(png_bytep,png_sig_bytes) PNGARG((void)); +#endif extern PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(png_charp,png_get_header_ver) PNGARG((png_structp png_ptr)); @@ -2406,6 +2500,7 @@ extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp /* Added to version 1.2.0 */ #if defined(PNG_ASSEMBLER_CODE_SUPPORTED) +#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 @@ -2431,6 +2526,7 @@ extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp #define PNG_SELECT_READ 1 #define PNG_SELECT_WRITE 2 +#endif /* PNG_MMX_CODE_SUPPORTED */ #if !defined(PNG_1_0_X) /* pngget.c */ @@ -2463,11 +2559,11 @@ extern PNG_EXPORT(void,png_set_mmx_thresholds) png_uint_32 mmx_rowbytes_threshold)); #endif /* PNG_1_0_X */ -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ #if !defined(PNG_1_0_X) /* png.c, pnggccrd.c, or pngvcrd.c */ extern PNG_EXPORT(int,png_mmx_support) PNGARG((void)); +#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ /* Strip the prepended error numbers ("#nnn ") from error and warning * messages before passing them to the error or warning handler. */ @@ -2531,6 +2627,44 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp #endif /* PNG_READ_COMPOSITE_NODIV_SUPPORTED */ +/* Inline macros to do direct reads of bytes from the input buffer. These + * require that you are using an architecture that uses PNG byte ordering + * (MSB first) and supports unaligned data storage. I think that PowerPC + * in big-endian mode and 680x0 are the only ones that will support this. + * The x86 line of processors definitely do not. The png_get_int_32() + * routine also assumes we are using two's complement format for negative + * values, which is almost certainly true. + */ +#if defined(PNG_READ_BIG_ENDIAN_SUPPORTED) +# define png_get_uint_32(buf) ( *((png_uint_32p) (buf))) +# define png_get_uint_16(buf) ( *((png_uint_16p) (buf))) +# define png_get_int_32(buf) ( *((png_int_32p) (buf))) +#else +extern PNG_EXPORT(png_uint_32,png_get_uint_32) PNGARG((png_bytep buf)); +extern PNG_EXPORT(png_uint_16,png_get_uint_16) PNGARG((png_bytep buf)); +extern PNG_EXPORT(png_int_32,png_get_int_32) PNGARG((png_bytep buf)); +#endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */ +extern PNG_EXPORT(png_uint_32,png_get_uint_31) + PNGARG((png_structp png_ptr, png_bytep buf)); +/* No png_get_int_16 -- may be added if there's a real need for it. */ + +/* Place a 32-bit number into a buffer in PNG byte order (big-endian). + */ +extern PNG_EXPORT(void,png_save_uint_32) + PNGARG((png_bytep buf, png_uint_32 i)); +extern PNG_EXPORT(void,png_save_int_32) + PNGARG((png_bytep buf, png_int_32 i)); + +/* Place a 16-bit number into a buffer in PNG byte order. + * The parameter is declared unsigned int, not png_uint_16, + * just to avoid potential problems on pre-ANSI C compilers. + */ +extern PNG_EXPORT(void,png_save_uint_16) + PNGARG((png_bytep buf, unsigned int i)); +/* No png_save_int_16 -- may be added if there's a real need for it. */ + +/* ************************************************************************* */ + /* These next functions are used internally in the code. They generally * shouldn't be used unless you are writing code to add or replace some * functionality in libpng. More information about most functions can @@ -2545,7 +2679,7 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp #define PNG_HAVE_IHDR 0x01 #define PNG_HAVE_PLTE 0x02 #define PNG_HAVE_IDAT 0x04 -#define PNG_AFTER_IDAT 0x08 +#define PNG_AFTER_IDAT 0x08 /* Have complete zlib datastream */ #define PNG_HAVE_IEND 0x10 #define PNG_HAVE_gAMA 0x20 #define PNG_HAVE_cHRM 0x40 @@ -2555,6 +2689,7 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp #define PNG_WROTE_INFO_BEFORE_PLTE 0x400 #define PNG_BACKGROUND_IS_GRAY 0x800 #define PNG_HAVE_PNG_SIGNATURE 0x1000 +#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ /* flags for the transformations the PNG library does on the image data */ #define PNG_BGR 0x0001 @@ -2581,7 +2716,14 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp #define PNG_RGB_TO_GRAY_ERR 0x200000L #define PNG_RGB_TO_GRAY_WARN 0x400000L #define PNG_RGB_TO_GRAY 0x600000L /* two bits, RGB_TO_GRAY_ERR|WARN */ + /* 0x800000L Unused */ #define PNG_ADD_ALPHA 0x1000000L /* Added to libpng-1.2.7 */ +#define PNG_EXPAND_tRNS 0x2000000L /* Added to libpng-1.2.9 */ + /* 0x4000000L unused */ + /* 0x8000000L unused */ + /* 0x10000000L unused */ + /* 0x20000000L unused */ + /* 0x40000000L unused */ /* flags for png_create_struct */ #define PNG_STRUCT_PNG 0x0001 @@ -2615,6 +2757,16 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp #define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000L #define PNG_FLAG_STRIP_ERROR_TEXT 0x80000L #define PNG_FLAG_MALLOC_NULL_MEM_OK 0x100000L +#define PNG_FLAG_ADD_ALPHA 0x200000L /* Added to libpng-1.2.8 */ +#define PNG_FLAG_STRIP_ALPHA 0x400000L /* Added to libpng-1.2.8 */ + /* 0x800000L unused */ + /* 0x1000000L unused */ + /* 0x2000000L unused */ + /* 0x4000000L unused */ + /* 0x8000000L unused */ + /* 0x10000000L unused */ + /* 0x20000000L unused */ + /* 0x40000000L unused */ #define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \ PNG_FLAG_CRC_ANCILLARY_NOWARN) @@ -2650,8 +2802,10 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp #ifdef PNG_USE_GLOBAL_ARRAYS PNG_EXPORT_VAR (const png_byte FARDATA) png_sig[8]; #else +#if 0 #define png_sig png_sig_bytes(NULL) #endif +#endif #endif /* PNG_NO_EXTERN */ /* Constant strings for known chunk types. If you need to add a chunk, @@ -2704,31 +2858,7 @@ PNG_EXPORT_VAR (const png_byte FARDATA) png_tRNS[5]; PNG_EXPORT_VAR (const png_byte FARDATA) png_zTXt[5]; #endif /* PNG_USE_GLOBAL_ARRAYS */ - -/* Inline macros to do direct reads of bytes from the input buffer. These - * require that you are using an architecture that uses PNG byte ordering - * (MSB first) and supports unaligned data storage. I think that PowerPC - * in big-endian mode and 680x0 are the only ones that will support this. - * The x86 line of processors definitely do not. The png_get_int_32() - * routine also assumes we are using two's complement format for negative - * values, which is almost certainly true. - */ -#if defined(PNG_READ_BIG_ENDIAN_SUPPORTED) -# if defined(PNG_pCAL_SUPPORTED) || defined(PNG_oFFs_SUPPORTED) -# define png_get_int_32(buf) ( *((png_int_32p) (buf))) -# endif -# define png_get_uint_32(buf) ( *((png_uint_32p) (buf))) -# define png_get_uint_16(buf) ( *((png_uint_16p) (buf))) -#else -# if defined(PNG_pCAL_SUPPORTED) || defined(PNG_oFFs_SUPPORTED) -PNG_EXTERN png_int_32 png_get_int_32 PNGARG((png_bytep buf)); -# endif -PNG_EXTERN png_uint_32 png_get_uint_32 PNGARG((png_bytep buf)); -PNG_EXTERN png_uint_16 png_get_uint_16 PNGARG((png_bytep buf)); -#endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */ -PNG_EXTERN png_uint_32 png_get_uint_31 PNGARG((png_structp png_ptr, - png_bytep buf)); - +#if defined(PNG_1_0_X) || defined (PNG_1_2_X) /* Initialize png_ptr struct for reading, and allocate any other memory. * (old interface - DEPRECATED - use png_create_read_struct instead). */ @@ -2736,12 +2866,17 @@ extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr)); #undef png_read_init #define png_read_init(png_ptr) png_read_init_3(&png_ptr, \ PNG_LIBPNG_VER_STRING, png_sizeof(png_struct)); +#endif + extern PNG_EXPORT(void,png_read_init_3) PNGARG((png_structpp ptr_ptr, png_const_charp user_png_ver, png_size_t png_struct_size)); +#if defined(PNG_1_0_X) || defined (PNG_1_2_X) extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr, png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t png_info_size)); +#endif +#if defined(PNG_1_0_X) || defined (PNG_1_2_X) /* Initialize png_ptr struct for writing, and allocate any other memory. * (old interface - DEPRECATED - use png_create_write_struct instead). */ @@ -2749,6 +2884,8 @@ extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr)); #undef png_write_init #define png_write_init(png_ptr) png_write_init_3(&png_ptr, \ PNG_LIBPNG_VER_STRING, png_sizeof(png_struct)); +#endif + extern PNG_EXPORT(void,png_write_init_3) PNGARG((png_structpp ptr_ptr, png_const_charp user_png_ver, png_size_t png_struct_size)); extern PNG_EXPORT(void,png_write_init_2) PNGARG((png_structp png_ptr, @@ -2848,23 +2985,6 @@ PNG_EXTERN void png_calculate_crc PNGARG((png_structp png_ptr, png_bytep ptr, PNG_EXTERN void png_flush PNGARG((png_structp png_ptr)); #endif - -/* Place a 32-bit number into a buffer in PNG byte order (big-endian). - * The only currently known PNG chunks that use signed numbers are - * the ancillary extension chunks, oFFs and pCAL. - */ -PNG_EXTERN void png_save_uint_32 PNGARG((png_bytep buf, png_uint_32 i)); - -#if defined(PNG_WRITE_pCAL_SUPPORTED) || defined(PNG_WRITE_oFFs_SUPPORTED) -PNG_EXTERN void png_save_int_32 PNGARG((png_bytep buf, png_int_32 i)); -#endif - -/* Place a 16-bit number into a buffer in PNG byte order. - * The parameter is declared unsigned int, not png_uint_16, - * just to avoid potential problems on pre-ANSI C compilers. - */ -PNG_EXTERN void png_save_uint_16 PNGARG((png_bytep buf, unsigned int i)); - /* simple function to write the signature */ PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr)); @@ -3345,9 +3465,34 @@ PNG_EXTERN void png_do_write_intrapixel PNGARG((png_row_infop row_info, #endif #if defined(PNG_ASSEMBLER_CODE_SUPPORTED) +#if defined(PNG_MMX_CODE_SUPPORTED) /* png.c */ /* PRIVATE */ PNG_EXTERN void png_init_mmx_flags PNGARG((png_structp png_ptr)); #endif +#endif + +#if defined(PNG_INCH_CONVERSIONS) && defined(PNG_FLOATING_POINT_SUPPORTED) +PNG_EXTERN png_uint_32 png_get_pixels_per_inch PNGARG((png_structp png_ptr, +png_infop info_ptr)); + +PNG_EXTERN png_uint_32 png_get_x_pixels_per_inch PNGARG((png_structp png_ptr, +png_infop info_ptr)); + +PNG_EXTERN png_uint_32 png_get_y_pixels_per_inch PNGARG((png_structp png_ptr, +png_infop info_ptr)); + +PNG_EXTERN float png_get_x_offset_inches PNGARG((png_structp png_ptr, +png_infop info_ptr)); + +PNG_EXTERN float png_get_y_offset_inches PNGARG((png_structp png_ptr, +png_infop info_ptr)); + +#if defined(PNG_pHYs_SUPPORTED) +PNG_EXTERN png_uint_32 png_get_pHYs_dpi PNGARG((png_structp png_ptr, +png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)); +#endif /* PNG_pHYs_SUPPORTED */ +#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */ + /* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */ #endif /* PNG_INTERNAL */ |