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png2hgr: start working on lookup table

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This commit is contained in:
Vince Weaver 2018-08-24 15:31:29 -04:00
parent d6af19f30e
commit 897576bcea
1 changed files with 22 additions and 4 deletions
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26
hgr-utils/png2hgr.c
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@ -239,16 +239,28 @@ static void print_help(char *name,int version) {
exit(1);
}
//static unsigned char image[8192];
static int hgr_offset_table[48]={
0x0000,0x0080,0x0100,0x0180,0x0200,0x0280,0x0300,0x0380,
0x0028,0x00A8,0x0128,0x01A8,0x0228,0x02A8,0x0328,0x03A8,
0x0050,0x00D0,0x0150,0x01D0,0x0250,0x02D0,0x0350,0x03D0,
};
static int hgr_offset(int y) {
int temp;
temp=y/8;
return hgr_offset_table[temp];
}
static unsigned char apple2_image[8192];
int main(int argc, char **argv) {
int xsize=0,ysize=0;
int c,i;
int c,x,y;
unsigned char *image;
unsigned char byte1,byte2;
char *filename;
@ -286,9 +298,15 @@ int main(int argc, char **argv) {
fprintf(stderr,"Loaded image %d by %d\n",xsize,ysize);
for(i=0;i<8192;i++) {
fprintf(stdout,"%c",apple2_image[i]);
for(y=0;y<192;y++) {
for(x=0;x<20;x++) {
byte1=0xff;
apple2_image[hgr_offset(y)]=byte1;
}
}
fwrite(apple2_image,8192,sizeof(unsigned char),stdout);
return 0;
}