mirror of
https://git.code.sf.net/p/libpng/code.git
synced 2025-07-10 18:04:09 +02:00
Imported from pngcrush-1.5.9.tar
This commit is contained in:
Glenn Randers-Pehrson
160
png.h
160
png.h
@@ -1,15 +1,14 @@
|
||||
|
||||
/* png.h - header file for PNG reference library
|
||||
*
|
||||
* libpng version 1.2.1 - December 12, 2001
|
||||
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
|
||||
* libpng version 1.2.4 - July 8, 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.)
|
||||
*
|
||||
* 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 1.2.1 - December 12, 2001: Glenn
|
||||
* libpng versions 0.97, January 1998, through 1.2.4 - July 8, 2002: Glenn
|
||||
* See also "Contributing Authors", below.
|
||||
*
|
||||
* Note about libpng version numbers:
|
||||
@@ -81,6 +80,19 @@
|
||||
* 1.2.1beta1-4 3 10201 3.1.2.1beta1-4
|
||||
* 1.2.1rc1-2 3 10201 3.1.2.1rc1-2
|
||||
* 1.2.1 3 10201 3.1.2.1
|
||||
* 1.2.2beta1-6 12 10202 12.so.0.1.2.2beta1-6
|
||||
* 1.0.13beta1 10 10013 10.so.0.1.0.13beta1
|
||||
* 1.0.13rc1 10 10013 10.so.0.1.0.13rc1
|
||||
* 1.2.2rc1 12 10202 12.so.0.1.2.2rc1
|
||||
* 1.0.13 10 10013 10.so.0.1.0.13
|
||||
* 1.2.2 12 10202 12.so.0.1.2.2
|
||||
* 1.2.3rc1-6 12 10203 12.so.0.1.2.3rc1-6
|
||||
* 1.2.3 12 10203 12.so.0.1.2.3
|
||||
* 1.2.4beta1-3 13 10204 12.so.0.1.2.4beta1-3
|
||||
* 1.0.14rc1 13 10014 10.so.0.1.0.14rc1
|
||||
* 1.2.4rc1 13 10204 12.so.0.1.2.4rc1
|
||||
* 1.0.14 10 10014 10.so.0.1.0.14
|
||||
* 1.2.4 13 10204 12.so.0.1.2.4
|
||||
*
|
||||
* Henceforth the source version will match the shared-library major
|
||||
* and minor numbers; the shared-library major version number will be
|
||||
@@ -110,8 +122,8 @@
|
||||
* If you modify libpng you may insert additional notices immediately following
|
||||
* this sentence.
|
||||
*
|
||||
* libpng versions 1.0.7, July 1, 2000, through 1.2.1, December 12, 2001, are
|
||||
* Copyright (c) 2000, 2001 Glenn Randers-Pehrson, and are
|
||||
* libpng versions 1.0.7, July 1, 2000, through 1.2.4, July 8, 2002, are
|
||||
* Copyright (c) 2000-2002 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
|
||||
*
|
||||
@@ -215,13 +227,13 @@
|
||||
* Y2K compliance in libpng:
|
||||
* =========================
|
||||
*
|
||||
* December 12, 2001
|
||||
* July 8, 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 1.2.1 are Y2K compliant. It is my belief that earlier
|
||||
* upward through 1.2.4 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
|
||||
@@ -277,15 +289,15 @@
|
||||
*/
|
||||
|
||||
/* Version information for png.h - this should match the version in png.c */
|
||||
#define PNG_LIBPNG_VER_STRING "1.2.1"
|
||||
#define PNG_LIBPNG_VER_STRING "1.2.4"
|
||||
|
||||
#define PNG_LIBPNG_VER_SONUM 3
|
||||
#define PNG_LIBPNG_VER_SONUM 0
|
||||
#define PNG_LIBPNG_VER_DLLNUM %DLLNUM%
|
||||
|
||||
/* 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 1
|
||||
#define PNG_LIBPNG_VER_RELEASE 4
|
||||
/* This should match the numeric part of the final component of
|
||||
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
|
||||
|
||||
@@ -304,7 +316,7 @@
|
||||
* 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 10201 /* 1.2.1 */
|
||||
#define PNG_LIBPNG_VER 10204 /* 1.2.4 */
|
||||
|
||||
#ifndef PNG_VERSION_INFO_ONLY
|
||||
|
||||
@@ -366,7 +378,7 @@ extern "C" {
|
||||
*/
|
||||
#ifdef PNG_USE_GLOBAL_ARRAYS
|
||||
PNG_EXPORT_VAR (const char) png_libpng_ver[18];
|
||||
/* need room for 99.99.99beta99z*/
|
||||
/* need room for 99.99.99beta99z */
|
||||
#else
|
||||
#define png_libpng_ver png_get_header_ver(NULL)
|
||||
#endif
|
||||
@@ -592,7 +604,7 @@ typedef struct png_info_struct
|
||||
png_byte interlace_type; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
|
||||
|
||||
/* The following is informational only on read, and not used on writes. */
|
||||
png_byte channels; /* number of data channels per pixel (1, 2, 3, 4)*/
|
||||
png_byte channels; /* number of data channels per pixel (1, 2, 3, 4) */
|
||||
png_byte pixel_depth; /* number of bits per pixel */
|
||||
png_byte spare_byte; /* to align the data, and for future use */
|
||||
png_byte signature[8]; /* magic bytes read by libpng from start of file */
|
||||
@@ -882,7 +894,7 @@ typedef png_info FAR * FAR * png_infopp;
|
||||
#define PNG_KEYWORD_MAX_LENGTH 79
|
||||
|
||||
/* Maximum number of entries in PLTE/sPLT/tRNS arrays */
|
||||
#define PNG_MAX_PALETTE_LENGTH 256
|
||||
#define PNG_MAX_PALETTE_LENGTH 256
|
||||
|
||||
/* These determine if an ancillary chunk's data has been successfully read
|
||||
* from the PNG header, or if the application has filled in the corresponding
|
||||
@@ -1001,7 +1013,7 @@ struct png_struct_def
|
||||
png_voidp error_ptr; /* user supplied struct for error functions */
|
||||
png_rw_ptr write_data_fn; /* function for writing output data */
|
||||
png_rw_ptr read_data_fn; /* function for reading input data */
|
||||
png_voidp io_ptr; /* ptr to application struct for I/O functions*/
|
||||
png_voidp io_ptr; /* ptr to application struct for I/O functions */
|
||||
|
||||
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
|
||||
png_user_transform_ptr read_user_transform_fn; /* user read transform */
|
||||
@@ -1215,7 +1227,11 @@ struct png_struct_def
|
||||
defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
|
||||
defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
|
||||
/* changed from png_byte to png_uint_32 at version 1.2.0 */
|
||||
#ifdef PNG_1_0_X
|
||||
png_byte mng_features_permitted;
|
||||
#else
|
||||
png_uint_32 mng_features_permitted;
|
||||
#endif /* PNG_1_0_X */
|
||||
#endif
|
||||
|
||||
/* New member added in libpng-1.0.7 */
|
||||
@@ -1228,13 +1244,13 @@ struct png_struct_def
|
||||
png_byte filter_type;
|
||||
#endif
|
||||
|
||||
#if defined(PNG_DEBUG) && defined(PNG_USE_PNGGCCRD)
|
||||
#if defined(PNG_1_0_X) || (defined(PNG_DEBUG) && defined(PNG_USE_PNGGCCRD))
|
||||
/* New member added in libpng-1.0.10, ifdef'ed out in 1.2.0 */
|
||||
png_uint_32 row_buf_size;
|
||||
#endif
|
||||
|
||||
/* New members added in libpng-1.2.0 */
|
||||
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
|
||||
#if !defined(PNG_1_0_X) && defined(PNG_ASSEMBLER_CODE_SUPPORTED)
|
||||
png_byte mmx_bitdepth_threshold;
|
||||
png_uint_32 mmx_rowbytes_threshold;
|
||||
png_uint_32 asm_flags;
|
||||
@@ -1247,15 +1263,25 @@ struct png_struct_def
|
||||
png_free_ptr free_fn; /* function for freeing memory */
|
||||
#endif
|
||||
|
||||
/* New member added in libpng-1.0.13 and 1.2.0 */
|
||||
png_bytep big_row_buf; /* buffer to save current (unfiltered) row */
|
||||
|
||||
#if defined(PNG_READ_DITHER_SUPPORTED)
|
||||
/* The following three members were added at version 1.0.14 and 1.2.4 */
|
||||
png_bytep dither_sort; /* working sort array */
|
||||
png_bytep index_to_palette; /* where the original index currently is */
|
||||
/* in the palette */
|
||||
png_bytep palette_to_index; /* which original index points to this */
|
||||
/* palette color */
|
||||
#endif
|
||||
|
||||
};
|
||||
|
||||
|
||||
/* This prevents a compiler error in png_get_copyright() in png.c if png.c
|
||||
and png.h are both at version 1.2.1
|
||||
/* This prevents a compiler error in png.c if png.c and png.h are both at
|
||||
version 1.2.4
|
||||
*/
|
||||
typedef png_structp version_1_2_1;
|
||||
typedef png_structp version_1_2_4;
|
||||
|
||||
typedef png_struct FAR * FAR * png_structpp;
|
||||
|
||||
@@ -1339,6 +1365,7 @@ extern PNG_EXPORT(png_infop,png_create_info_struct)
|
||||
|
||||
/* 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, sizeof(png_info));
|
||||
extern PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr,
|
||||
png_size_t png_info_struct_size));
|
||||
@@ -1514,11 +1541,11 @@ extern PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr));
|
||||
extern PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr,
|
||||
png_infop info_ptr));
|
||||
|
||||
/* read a one or more rows of image data.*/
|
||||
/* read one or more rows of image data. */
|
||||
extern PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr,
|
||||
png_bytepp row, png_bytepp display_row, png_uint_32 num_rows));
|
||||
|
||||
/* read a row of data.*/
|
||||
/* read a row of data. */
|
||||
extern PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr,
|
||||
png_bytep row,
|
||||
png_bytep display_row));
|
||||
@@ -1563,9 +1590,6 @@ extern void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr,
|
||||
extern PNG_EXPORT(void,png_destroy_write_struct)
|
||||
PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr));
|
||||
|
||||
/* free any memory used in info_ptr struct (old method - NOT DLL EXPORTED) */
|
||||
extern void png_write_destroy_info PNGARG((png_infop info_ptr));
|
||||
|
||||
/* free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */
|
||||
extern void png_write_destroy PNGARG((png_structp png_ptr));
|
||||
|
||||
@@ -1807,9 +1831,26 @@ extern PNG_EXPORT(void,png_progressive_combine_row) PNGARG((png_structp png_ptr,
|
||||
extern PNG_EXPORT(png_voidp,png_malloc) PNGARG((png_structp png_ptr,
|
||||
png_uint_32 size));
|
||||
|
||||
#if defined(PNG_1_0_X)
|
||||
# define png_malloc_warn png_malloc
|
||||
#else
|
||||
/* Added at libpng version 1.2.4 */
|
||||
extern PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr,
|
||||
png_uint_32 size));
|
||||
#endif
|
||||
|
||||
/* frees a pointer allocated by png_malloc() */
|
||||
extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr));
|
||||
|
||||
#if defined(PNG_1_0_X)
|
||||
/* 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));
|
||||
#endif
|
||||
|
||||
/* 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));
|
||||
@@ -1858,19 +1899,19 @@ extern void *png_far_to_near PNGARG((png_structp png_ptr,png_voidp ptr,
|
||||
|
||||
/* Fatal error in PNG image of libpng - can't continue */
|
||||
extern PNG_EXPORT(void,png_error) PNGARG((png_structp png_ptr,
|
||||
png_const_charp error));
|
||||
png_const_charp error_message));
|
||||
|
||||
/* The same, but the chunk name is prepended to the error string. */
|
||||
extern PNG_EXPORT(void,png_chunk_error) PNGARG((png_structp png_ptr,
|
||||
png_const_charp error));
|
||||
png_const_charp error_message));
|
||||
|
||||
/* Non-fatal error in libpng. Can continue, but may have a problem. */
|
||||
extern PNG_EXPORT(void,png_warning) PNGARG((png_structp png_ptr,
|
||||
png_const_charp message));
|
||||
png_const_charp warning_message));
|
||||
|
||||
/* Non-fatal error in libpng, chunk name is prepended to message. */
|
||||
extern PNG_EXPORT(void,png_chunk_warning) PNGARG((png_structp png_ptr,
|
||||
png_const_charp message));
|
||||
png_const_charp warning_message));
|
||||
|
||||
/* The png_set_<chunk> functions are for storing values in the png_info_struct.
|
||||
* Similarly, the png_get_<chunk> calls are used to read values from the
|
||||
@@ -2217,6 +2258,10 @@ extern PNG_EXPORT(void, png_set_unknown_chunk_location)
|
||||
extern PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp
|
||||
png_ptr, png_infop info_ptr, png_unknown_chunkpp entries));
|
||||
#endif
|
||||
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep
|
||||
chunk_name));
|
||||
#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,
|
||||
@@ -2301,15 +2346,15 @@ 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)
|
||||
#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_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_ASM_FLAGS_INITIALIZED 0x80000000 /* not user-settable */
|
||||
#define PNG_ASM_FLAGS_INITIALIZED 0x80000000 /* not user-settable */
|
||||
|
||||
#define PNG_MMX_READ_FLAGS ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \
|
||||
| PNG_ASM_FLAG_MMX_READ_INTERLACE \
|
||||
@@ -2328,6 +2373,7 @@ extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp
|
||||
#define PNG_SELECT_WRITE 2
|
||||
|
||||
|
||||
#if !defined(PNG_1_0_X)
|
||||
/* pngget.c */
|
||||
extern PNG_EXPORT(png_uint_32,png_get_mmx_flagmask)
|
||||
PNGARG((int flag_select, int *compilerID));
|
||||
@@ -2357,8 +2403,10 @@ 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_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));
|
||||
|
||||
@@ -2368,11 +2416,12 @@ extern PNG_EXPORT(int,png_mmx_support) PNGARG((void));
|
||||
extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
|
||||
png_ptr, png_uint_32 strip_mode));
|
||||
#endif
|
||||
#endif /* PNG_1_0_X */
|
||||
|
||||
/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
|
||||
|
||||
#define PNG_HEADER_VERSION_STRING \
|
||||
" libpng version 1.2.1 - December 12, 2001 (header)\n"
|
||||
" libpng version 1.2.4 - July 8, 2002 (header)\n"
|
||||
|
||||
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
|
||||
/* With these routines we avoid an integer divide, which will be slower on
|
||||
@@ -2497,6 +2546,7 @@ extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
|
||||
#define PNG_FLAG_LIBRARY_MISMATCH 0x20000L
|
||||
#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000L
|
||||
#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000L
|
||||
#define PNG_FLAG_MALLOC_NULL_MEM_OK 0x100000L
|
||||
|
||||
/* For use in png_set_keep_unknown, png_handle_as_unknown */
|
||||
#define HANDLE_CHUNK_AS_DEFAULT 0
|
||||
@@ -2605,6 +2655,7 @@ PNG_EXTERN png_uint_16 png_get_uint_16 PNGARG((png_bytep buf));
|
||||
* (old interface - DEPRECATED - use png_create_read_struct instead).
|
||||
*/
|
||||
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, sizeof(png_struct));
|
||||
extern PNG_EXPORT(void,png_read_init_3) PNGARG((png_structpp ptr_ptr,
|
||||
@@ -2617,6 +2668,7 @@ extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr,
|
||||
* (old interface - DEPRECATED - use png_create_write_struct instead).
|
||||
*/
|
||||
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, sizeof(png_struct));
|
||||
extern PNG_EXPORT(void,png_write_init_3) PNGARG((png_structpp ptr_ptr,
|
||||
@@ -2640,12 +2692,39 @@ 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));
|
||||
|
||||
#ifndef PNG_1_0_X
|
||||
/* 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));
|
||||
|
||||
/* Next four functions are used internally as callbacks. PNGAPI is required
|
||||
* but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3. */
|
||||
|
||||
PNG_EXTERN void PNGAPI png_default_read_data PNGARG((png_structp png_ptr,
|
||||
png_bytep data, png_size_t length));
|
||||
|
||||
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
|
||||
PNG_EXTERN void PNGAPI png_push_fill_buffer PNGARG((png_structp png_ptr,
|
||||
png_bytep buffer, png_size_t length));
|
||||
#endif
|
||||
|
||||
PNG_EXTERN void PNGAPI png_default_write_data PNGARG((png_structp png_ptr,
|
||||
png_bytep data, png_size_t length));
|
||||
|
||||
#if defined(PNG_WRITE_FLUSH_SUPPORTED)
|
||||
#if !defined(PNG_NO_STDIO)
|
||||
PNG_EXTERN void PNGAPI png_default_flush PNGARG((png_structp png_ptr));
|
||||
#endif
|
||||
#endif
|
||||
#else /* PNG_1_0_X */
|
||||
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
|
||||
PNG_EXTERN void png_push_fill_buffer PNGARG((png_structp png_ptr,
|
||||
png_bytep buffer, png_size_t length));
|
||||
#endif
|
||||
#endif /* PNG_1_0_X */
|
||||
|
||||
/* Reset the CRC variable */
|
||||
PNG_EXTERN void png_reset_crc PNGARG((png_structp png_ptr));
|
||||
|
||||
@@ -2686,6 +2765,7 @@ 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.
|
||||
@@ -2808,6 +2888,11 @@ PNG_EXTERN void png_write_iTXt PNGARG((png_structp png_ptr,
|
||||
png_charp text));
|
||||
#endif
|
||||
|
||||
#if defined(PNG_TEXT_SUPPORTED) /* Added at version 1.0.14 and 1.2.4 */
|
||||
PNG_EXTERN int png_set_text_2 PNGARG((png_structp png_ptr,
|
||||
png_infop info_ptr, png_textp text_ptr, int num_text));
|
||||
#endif
|
||||
|
||||
#if defined(PNG_WRITE_oFFs_SUPPORTED)
|
||||
PNG_EXTERN void png_write_oFFs PNGARG((png_structp png_ptr,
|
||||
png_int_32 x_offset, png_int_32 y_offset, int unit_type));
|
||||
@@ -3108,11 +3193,6 @@ PNG_EXTERN void png_handle_zTXt PNGARG((png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length));
|
||||
#endif
|
||||
|
||||
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
PNG_EXTERN int png_handle_as_unknown PNGARG((png_structp png_ptr, png_bytep
|
||||
chunk_name));
|
||||
#endif
|
||||
|
||||
PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr,
|
||||
png_infop info_ptr, png_uint_32 length));
|
||||
|
||||
@@ -3134,8 +3214,6 @@ 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));
|
||||
|
||||
Reference in New Issue
Block a user