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Imported from libpng-0.99e.tar

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Glenn Randers-Pehrson
1998-02-28 07:00:24 -06:00
parent a357b99113
commit cbe52d8720
28 changed files with 843 additions and 694 deletions
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41
png.h
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@@ -1,12 +1,12 @@
/* png.h - header file for PNG reference library
*
* libpng 0.99d beta
* libpng 0.99e beta
* For conditions of distribution and use, see the COPYRIGHT NOTICE below.
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998 Glenn Randers-Pehrson
* February 8, 1998
* February 28, 1998
*
* Note about libpng version numbers:
*
@@ -30,7 +30,7 @@
* 0.99a 0.99 2.0.99
* 0.99b 0.99 2.0.99
* 0.99c 0.99 2.0.99
* 0.99d 0.99 2.0.99
* 0.99e 0.99 2.0.99
* 1.0 1.00 2.1.0
*
* Henceforth the source version will match the shared-library minor
@@ -65,6 +65,7 @@
* Guy Eric Schalnat
* Paul Schmidt
* Tom Tanner
* Willem van Schaik
* Tim Wegner
*
* The contributing authors would like to thank all those who helped
@@ -708,6 +709,21 @@ extern PNG_EXPORT(png_structp,png_create_write_struct)
PNGARG((png_const_charp user_png_ver, voidp error_ptr,
png_error_ptr error_fn, png_error_ptr warn_fn));
/* Write a PNG chunk - size, type, (optional) data, CRC. */
extern PNG_EXPORT(void,png_write_chunk) PNGARG((png_structp png_ptr,
png_bytep chunk_name, png_bytep data, png_size_t length));
/* Write the start of a PNG chunk - length and chunk name. */
extern PNG_EXPORT(void,png_write_chunk_start) PNGARG((png_structp png_ptr,
png_bytep chunk_name, png_uint_32 length));
/* Write the data of a PNG chunk started with png_write_chunk_start(). */
extern PNG_EXPORT(void,png_write_chunk_data) PNGARG((png_structp png_ptr,
png_bytep data, png_size_t length));
/* Finish a chunk started with png_write_chunk_start() (includes CRC). */
extern PNG_EXPORT(void,png_write_chunk_end) PNGARG((png_structp png_ptr));
/* Allocate and initialize the info structure */
extern PNG_EXPORT(png_infop,png_create_info_struct)
PNGARG((png_structp png_ptr));
@@ -1200,6 +1216,10 @@ png_ptr, png_infop info_ptr));
/* Returns image resolution in pixels per meter, from pHYs chunk data. */
extern PNG_EXPORT(png_uint_32, png_get_pixels_per_meter) PNGARG((png_structp
png_ptr, png_infop info_ptr));
extern PNG_EXPORT(png_uint_32, png_get_x_pixels_per_meter) PNGARG((png_structp
png_ptr, png_infop info_ptr));
extern PNG_EXPORT(png_uint_32, png_get_y_pixels_per_meter) PNGARG((png_structp
png_ptr, png_infop info_ptr));
/* Returns pixel aspect ratio, computed from pHYs chunk data. */
extern PNG_EXPORT(float, png_get_pixel_aspect_ratio) PNGARG((png_structp
@@ -1620,21 +1640,6 @@ PNG_EXTERN void png_save_int_32 PNGARG((png_bytep buf, png_int_32 i));
*/
PNG_EXTERN void png_save_uint_16 PNGARG((png_bytep buf, unsigned int i));
/* Write a PNG chunk - size, type, (optional) data, CRC. */
PNG_EXTERN void png_write_chunk PNGARG((png_structp png_ptr,
png_bytep chunk_name, png_bytep data, png_size_t length));
/* Write the start of a PNG chunk - length and chunk name. */
PNG_EXTERN void png_write_chunk_start PNGARG((png_structp png_ptr,
png_bytep chunk_name, png_uint_32 length));
/* Write the data of a PNG chunk started with png_write_chunk_start(). */
PNG_EXTERN void png_write_chunk_data PNGARG((png_structp png_ptr,
png_bytep data, png_size_t length));
/* Finish a chunk started with png_write_chunk_start() (includes CRC). */
PNG_EXTERN void png_write_chunk_end PNGARG((png_structp png_ptr));
/* simple function to write the signature */
PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr));