mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-09-10 08:54:51 +00:00
114 lines
1.8 KiB
C
114 lines
1.8 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdarg.h>
|
|
|
|
#include "loadpng.h"
|
|
|
|
/* Converts a PNG to RLE compressed data */
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
int enough=0,run=0;
|
|
int x;
|
|
|
|
unsigned char *image;
|
|
int xsize,ysize,last=-1,next;
|
|
FILE *outfile;
|
|
int size=0;
|
|
|
|
if (argc<3) {
|
|
fprintf(stderr,"Usage:\t%s INFILE OUTFILE\n\n",argv[0]);
|
|
exit(-1);
|
|
}
|
|
|
|
outfile=fopen(argv[2],"w");
|
|
if (outfile==NULL) {
|
|
fprintf(stderr,"Error! Could not open %s\n",argv[2]);
|
|
exit(-1);
|
|
}
|
|
|
|
if (loadpng(argv[1],&image,&xsize,&ysize)<0) {
|
|
fprintf(stderr,"Error loading png!\n");
|
|
exit(-1);
|
|
}
|
|
|
|
printf("Loaded image %d by %d\n",xsize,ysize);
|
|
|
|
x=0;
|
|
enough=0;
|
|
|
|
/* Write out xsize and ysize */
|
|
|
|
fprintf(outfile,"{ 0x%X,0x%X,\n",xsize,ysize);
|
|
size+=2;
|
|
|
|
/* Get first top/bottom color pair */
|
|
last=image[x];
|
|
run++;
|
|
x++;
|
|
|
|
while(1) {
|
|
|
|
/* get next top/bottom color pair */
|
|
next=image[x];
|
|
|
|
// printf("x=%d, next=%x image[%d]=%x\n",
|
|
// x,next,
|
|
// x,image[x]);
|
|
|
|
|
|
/* If color change (or too big) then output our run */
|
|
/* Note 0xff for run length is special case meaning "finished" */
|
|
if ((next!=last) || (run>253)) {
|
|
fprintf(outfile,"0x%02X,0x%02X, ",run,last);
|
|
|
|
// printf("%x,%x\n",run,last);
|
|
|
|
size+=2;
|
|
run=0;
|
|
last=next;
|
|
}
|
|
|
|
x++;
|
|
|
|
/* Split up per-line */
|
|
enough++;
|
|
if (enough>=xsize) {
|
|
enough=0;
|
|
fprintf(outfile,"\n");
|
|
}
|
|
|
|
/* If we reach the end */
|
|
if (x>=xsize*(ysize/2)) {
|
|
run++;
|
|
/* print tailing value */
|
|
if (run!=0) {
|
|
fprintf(outfile,"0x%02X,0x%02X, ",run,last);
|
|
size+=2;
|
|
}
|
|
break;
|
|
}
|
|
|
|
run++;
|
|
|
|
|
|
}
|
|
|
|
/* Print closing marker */
|
|
|
|
fprintf(outfile,"0xFF,0xFF,");
|
|
size+=2;
|
|
fprintf(outfile,"};\n");
|
|
|
|
fclose(outfile);
|
|
|
|
printf("Size %d bytes\n",size);
|
|
|
|
return 0;
|
|
}
|