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- #include "png.h" /* includes zlib.h and setjmp.h */
- typedef struct _jmpbuf_wrapper
- {
- jmp_buf jmpbuf;
- } jmpbuf_wrapper;
- #ifndef TRUE
- # define TRUE 1
- #endif
- #ifndef FALSE
- # define FALSE 0
- #endif
- #ifndef NONE
- # define NONE 0
- #endif
- #define MAXCOLORS 256
- #define MAXCOMMENTS 256
- /* function prototypes */
- static void pnmtopng_error_handler(png_structp png_ptr, png_const_charp msg);
- #if 0
- /* unused */
- static int filter = -1;
- #endif
- static jmpbuf_wrapper pnmtopng_jmpbuf_struct;
- typedef unsigned char xelval;
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