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OS/2 Shareware BBS: 10 Tools
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pic.h
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C/C++ Source or Header
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2000-02-16
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2KB
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64 lines
/* ===========================================================================
Name: pngpic.h
Purpose:
Type declarations and associated macros for use
with creatin PNG picture files (PNG files).
=========================================================================== */
/* Include Files */
#include <png.h>
/* ======================================================================== */
/* Data Structures */
typedef unsigned char boolean;
#ifndef FALSE
# define FALSE ((boolean) 0)
# define TRUE ((boolean) 1)
#endif
typedef png_byte Pic_byte;
typedef struct Pic_Pixel
{
Pic_byte r, g, b;
} Pic_Pixel;
typedef struct
{
FILE* fptr;
char* filename;
short width;
short height;
short scanline;
png_structp png_ptr;
png_infop info_ptr;
Pic_byte* tempLine;
} Pic;
/* ======================================================================== */
/* Memory allocation and other macros */
#define StrAlloc(n) ((char *)malloc((unsigned)(n)))
#define PixelAlloc(n) ((Pic_Pixel *)malloc(((unsigned)(n))*sizeof(Pic_Pixel)))
#define PixelFree(p) ((void) free((char *)(p)))
/* ======================================================================== */
/* General routines */
extern Pic* PicOpen(const char* filename, short width, short height );
extern boolean PicWriteLine(Pic* pngFile, Pic_Pixel* pixels);
extern void PicClose(Pic* pngFile);
/* ======================================================================== */