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dhgr2png: make it work with the images form iipix

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can handle in theory both 16k combined images and separate
BIN/AUX images now
This commit is contained in:
Vince Weaver 2024-11-27 21:56:59 -05:00
parent 12448e1d75
commit 0c24ab5f43
1 changed files with 78 additions and 18 deletions
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96
utils/hgr-utils/dhgr2png.c
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@ -1,3 +1,5 @@
/* Convert an Apple IIe double-hires memory capture to a PNG */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
@ -5,8 +7,12 @@
#include <fcntl.h>
#include <errno.h>
#include <sys/stat.h>
#include <png.h>
#define VERSION "0.0.1"
#define PAL_LENGTH 16 // PNG_MAX_PALETTE_LENGTH
static int hgr_offset_table[48]={
@ -120,6 +126,20 @@ unsigned char flip_bits[16]={
15, // 1111 -> 1111 white
};
static void print_help(char *name,int version) {
printf("%s\n",VERSION);
if (version) exit(1);
printf("Usage: %s FILENAME.BIN [FILENAME.AUX] OUTPUT\n",name);
printf("\twhere FILENAME.BIN is either a 16k aux/bin memory dump\n");
printf("\tor else you have separate 8k bin/aux memory dumps\n");
printf("\n");
exit(1);
}
//unsigned char flip_bits[16]={0,8,4,0xc,2,0xA,6,0xE,1,9,5,0xD,3,0xb,7,0xf};
//unsigned char flip_bits[16]={0,1,2,3,4,5,7,8,9,10,11,12,13,14,15};
@ -146,35 +166,75 @@ int main(int argc, char **argv) {
png_color *col;
/* print arguments */
if (argc<2) {
fprintf(stderr,"Usage: dhgr2 FILENAME.BIN FILENAME.AUX OUTPUT\n");
fprintf(stderr," where FILENAME.BIN/AUX are 8k AppleII HIRES images\n\n");
return -1;
if (argc<3) {
print_help(argv[0],0);
}
/* Assume 3 or 4 arguments */
/* if 3 arguments, it's 16k filename, output name */
/* if 4 arguments, it's 8k bin, 8k aux, output name */
/* FIXME: avoid accidentally over-writing? Need -f to force? */
/* if no name specified, make one from the input name */
if (argc<4) {
sprintf(filename,"%s.png",argv[1]);
}
else {
strncpy(filename,argv[3],256-1);
}
// if (argc<4) {
// sprintf(filename,"%s.png",argv[1]);
// }
// else {
// strncpy(filename,argv[3],256-1);
// }
struct stat input_stat;
int bin_size,result;
/* check if argv[1] is 16k */
fd=open(argv[1],O_RDONLY);
if (fd<0) {
printf("Error opening %s! %s\n",argv[1],strerror(errno));
fprintf(stderr,"Error opening %s! %s\n",argv[1],strerror(errno));
return -1;
}
result=fstat(fd,&input_stat);
if (result<0) {
fprintf(stderr,"Error statting!\n");
return -1;
}
read(fd,bin_screen,8192);
close(fd);
fd=open(argv[2],O_RDONLY);
if (fd<0) {
printf("Error opening %s! %s\n",argv[2],strerror(errno));
bin_size=input_stat.st_size;
if (bin_size==16384) {
read(fd,aux_screen,8192);
read(fd,bin_screen,8192);
close(fd);
strncpy(filename,argv[2],256-1);
}
else if ((bin_size==8192) && (argc==4)) {
/* assume next file has next 8k */
fd=open(argv[2],O_RDONLY);
if (fd<0) {
printf("Error opening %s! %s\n",argv[2],strerror(errno));
return -1;
}
result=fstat(fd,&input_stat);
if (result<0) {
fprintf(stderr,"Error statting!\n");
return -1;
}
bin_size=input_stat.st_size;
if (bin_size!=8192) {
fprintf(stderr,"ERROR: File %s has unexpected size %d\n",
argv[1],bin_size);
return -1;
}
read(fd,aux_screen,8192);
close(fd);
strncpy(filename,argv[3],256-1);
}
else {
fprintf(stderr,"ERROR: File %s has unexpected size %d\n",
argv[1],bin_size);
return -1;
}
read(fd,aux_screen,8192);
close(fd);