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/*---------------------------------------------------------------------------
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pngquant: RGBA -> RGBA-palette quantization program rwpng.h
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---------------------------------------------------------------------------
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Copyright (c) 1998-2000 Greg Roelofs. All rights reserved.
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This software is provided "as is," without warranty of any kind,
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express or implied. In no event shall the author or contributors
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be held liable for any damages arising in any way from the use of
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute
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it freely, subject to the following restrictions:
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1. Redistributions of source code must retain the above copyright
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notice, disclaimer, and this list of conditions.
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2. Redistributions in binary form must reproduce the above copyright
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notice, disclaimer, and this list of conditions in the documenta-
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tion and/or other materials provided with the distribution.
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3. All advertising materials mentioning features or use of this
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software must display the following acknowledgment:
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This product includes software developed by Greg Roelofs
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and contributors for the book, "PNG: The Definitive Guide,"
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published by O'Reilly and Associates.
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---------------------------------------------------------------------------*/
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# define MAX(a,b) ((a) > (b)? (a) : (b))
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# define MIN(a,b) ((a) < (b)? (a) : (b))
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# define Trace(x) {fprintf x ; fflush(stderr); fflush(stdout);}
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typedef unsigned char uch;
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typedef unsigned short ush;
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typedef unsigned long ulg;
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typedef struct _rwpng_color_struct {
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typedef struct _mainprog_info {
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ulg width; /* read/write */
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ulg height; /* read/write */
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ulg rowbytes; /* read */
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void *png_ptr; /* read/write */
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void *info_ptr; /* read/write */
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rwpng_color palette[256]; /* write */
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uch trans[256]; /* write */
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uch *rgba_data; /* read */
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uch *indexed_data; /* write */
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uch **row_pointers; /* read/write */
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jmp_buf jmpbuf; /* read/write */
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int interlaced; /* read/write */
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int channels; /* read (currently not used) */
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int sample_depth; /* write */
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int num_palette; /* write */
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int num_trans; /* write */
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int retval; /* read/write */
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/* prototypes for public functions in rwpng.c */
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void rwpng_version_info(void);
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int rwpng_read_image(FILE *infile, mainprog_info *mainprog_ptr);
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int rwpng_write_image_init(FILE *outfile, mainprog_info *mainprog_ptr);
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int rwpng_write_image_whole(mainprog_info *mainprog_ptr);
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int rwpng_write_image_row(mainprog_info *mainprog_ptr);
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int rwpng_write_image_finish(mainprog_info *mainprog_ptr);
added
removed
0.4.1/rwpng.h
