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