78 lines
1.4 KiB
C
78 lines
1.4 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 a GR file you can include in your code */
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
int row=0;
|
|
int col=0;
|
|
int x;
|
|
unsigned char out_buffer[1024];
|
|
|
|
unsigned char *image;
|
|
int xsize,ysize;
|
|
FILE *outfile;
|
|
|
|
if (argc<2) {
|
|
fprintf(stderr,"Usage:\t%s INFILE\n\n",argv[0]);
|
|
exit(-1);
|
|
}
|
|
|
|
outfile=stdout;
|
|
|
|
if (loadpng(argv[1],&image,&xsize,&ysize,PNG_WHOLETHING)<0) {
|
|
fprintf(stderr,"Error loading png!\n");
|
|
exit(-1);
|
|
}
|
|
|
|
fprintf(stderr,"Loaded image %d by %d\n",xsize,ysize);
|
|
|
|
short gr_offsets[]={
|
|
0x400,0x480,0x500,0x580,0x600,0x680,0x700,0x780,
|
|
0x428,0x4a8,0x528,0x5a8,0x628,0x6a8,0x728,0x7a8,
|
|
0x450,0x4d0,0x550,0x5d0,0x650,0x6d0,0x750,0x7d0,
|
|
};
|
|
|
|
memset(out_buffer,0,1024);
|
|
for(row=0;row<24;row++) {
|
|
for(col=0;col<40;col++) {
|
|
out_buffer[(gr_offsets[row]-0x400)+col]=image[row*xsize+col];
|
|
}
|
|
}
|
|
|
|
int line=0,which=0;
|
|
|
|
for(x=0;x<1024;x++) {
|
|
line=x%128;
|
|
which=(x/128)+(line/40)*8;
|
|
if (line%40==0) {
|
|
if (line==120) {
|
|
fprintf(outfile,"\n; SCREEN HOLE");
|
|
}
|
|
else {
|
|
fprintf(outfile,"\n; LINE %d-%d",
|
|
which*2,(which*2)+1);
|
|
}
|
|
}
|
|
if (line%10==0) {
|
|
fprintf(outfile,"\n.byte ");
|
|
}
|
|
fprintf(outfile,"$%02X",out_buffer[x]);
|
|
if ((line%10!=9) && (line!=127)) fprintf(outfile,",");
|
|
}
|
|
fprintf(outfile,"\n");
|
|
|
|
fclose(outfile);
|
|
|
|
return 0;
|
|
}
|