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b0a4b6a1ee
https://kristerw.blogspot.com/2016/02/how-undefined-signed-overflow-enables.html Doing this as cleanly as possible involved demoting several function parameters concerning object sizes and counts from size_t to int--I'm fine with this change as the functions in question are not actually capable of handling input with sizes larger than what can be stored in a signed 32-bit integer, making the use of size_t here misleading at best. git-svn-id: https://svn.eduke32.com/eduke32@7673 1a8010ca-5511-0410-912e-c29ae57300e0 # Conflicts: # source/build/src/polymost.cpp # source/build/src/texcache.cpp # source/build/src/tilepacker.cpp
39 lines
739 B
C
39 lines
739 B
C
#ifndef __PNGWRITE_H__
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#define __PNGWRITE_H__
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#include "miniz.h"
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#include "vfs.h"
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#define CHUNK_COMPRESSED 1
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#define CHUNK_ROW 2
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enum
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{
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PNG_TRUECOLOR = 2,
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PNG_INDEXED = 3,
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};
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#pragma pack(push, 1)
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typedef struct
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{
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z_stream *zs;
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buildvfs_FILE file;
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uint8_t *pal_data;
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uint16_t pal_entries;
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uint8_t *text;
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uint8_t textlen;
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} pngwrite_t;
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typedef struct
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{
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uint32_t width, height;
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uint8_t depth, type, filler[3];
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} png_ihdr_t;
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#pragma pack(pop)
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void png_set_pal(uint8_t const * data, int numentries);
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void png_set_text(char const * keyword, char const * text);
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void png_write(buildvfs_FILE const file, int const width, int const height, uint8_t const type, uint8_t const * const data);
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#endif
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