dos33fsprogs/gr-utils/png_to_40x96.c

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/* Convert a 40x96 image into two, 40x48 images suitable of loading */
/* with my kfest18 based code */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
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#include <png.h>
#include "loadpng.h"
#include "rle_common.h"
/* Converts a PNG to RLE compressed data */
int main(int argc, char **argv) {
unsigned char *image;
int xsize,ysize;
int size=0;
int out_type=OUTPUT_C;
char output_name[BUFSIZ];
if (argc<4) {
fprintf(stderr,"Usage:\t%s type INFILE varname\n\n",argv[0]);
fprintf(stderr,"\ttype: c or asm\n");
fprintf(stderr,"\tvarname: label for graphic\n");
fprintf(stderr,"\n");
exit(-1);
}
if (!strcmp(argv[1],"c")) {
out_type=OUTPUT_C;
}
else if (!strcmp(argv[1],"asm")) {
out_type=OUTPUT_ASM;
}
if (loadpng(argv[2],&image,&xsize,&ysize,PNG_ODDLINES)<0) {
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fprintf(stderr,"Error loading png!\n");
exit(-1);
}
fprintf(stderr,"Loaded image %d by %d\n",xsize,ysize);
sprintf(output_name,"%s_low",argv[3]);
size=rle_smaller(out_type,output_name,
xsize,ysize,image);
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fprintf(stderr,"Size %d bytes\n",size);
if (loadpng(argv[2],&image,&xsize,&ysize,PNG_EVENLINES)<0) {
fprintf(stderr,"Error loading png!\n");
exit(-1);
}
fprintf(stderr,"Loaded image %d by %d\n",xsize,ysize);
sprintf(output_name,"%s_high",argv[3]);
size=rle_smaller(out_type,output_name,
xsize,ysize,image);
fprintf(stderr,"Size %d bytes\n",size);
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return 0;
}
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