mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-11-17 14:12:58 +00:00
449 lines
9.9 KiB
C
449 lines
9.9 KiB
C
/* Converts 140x192 8-bit PNG file with correct palette to Apple II DHGR */
|
|
|
|
/* http://www.battlestations.zone/2017/04/apple-ii-double-hi-res-from-ground-up_12.html */
|
|
|
|
#define VERSION "0.0.1"
|
|
|
|
#include <stdio.h> /* For FILE I/O */
|
|
#include <string.h> /* For strncmp */
|
|
#include <fcntl.h> /* for open() */
|
|
#include <unistd.h> /* for lseek() */
|
|
#include <sys/stat.h> /* for file modes */
|
|
#include <stdlib.h> /* free() */
|
|
|
|
#include <png.h>
|
|
|
|
#define OUTPUT_C 0
|
|
#define OUTPUT_ASM 1
|
|
#define OUTPUT_RAW 2
|
|
|
|
/* If you want default black a different color try the below */
|
|
/* Useful if you are trying to xdraw to get red/blue */
|
|
#if 0
|
|
/* Default is BLACK0 */
|
|
#define DEFAULT_BLACK -1
|
|
#else
|
|
/* DEFAULT is BLACK1 */
|
|
#define DEFAULT_BLACK 1
|
|
#endif
|
|
|
|
static int debug=0;
|
|
|
|
static int convert_color(int color) {
|
|
|
|
int c=0;
|
|
|
|
switch(color) {
|
|
case 0x000000: c=0; break; /* black */
|
|
case 0xe31e60: c=1; break; /* magenta */
|
|
case 0x604ebd: c=2; break; /* dark blue */
|
|
case 0xff44fd: c=3; break; /* purple */
|
|
case 0x00a360: c=4; break; /* dark green */
|
|
case 0x9c9c9c: c=5; break; /* grey 1 */
|
|
case 0x14cffd: c=6; break; /* medium blue */
|
|
case 0xd0c3ff: c=7; break; /* light blue */
|
|
case 0x607203: c=8; break; /* brown */
|
|
case 0xff6a3c: c=9; break; /* orange */
|
|
case 0x9d9d9d: c=10; break; /* grey 2 */
|
|
case 0xffa0d0: c=11; break; /* pink */
|
|
case 0x14f53c: c=12; break; /* bright green */
|
|
case 0xd0dd8d: c=13; break; /* yellow */
|
|
case 0x72ffd0: c=14; break; /* aqua */
|
|
case 0xffffff: c=15; break; /* white */
|
|
|
|
default:
|
|
fprintf(stderr,"Unknown color %x\n",color);
|
|
break;
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
|
|
|
|
/* expects a PNG */
|
|
int loadpng(char *filename,
|
|
unsigned char **image_ptr, int *xsize, int *ysize) {
|
|
|
|
int x,y;
|
|
int color;
|
|
FILE *infile;
|
|
unsigned char *image,*out_ptr;
|
|
int width, height;
|
|
int a2_color;
|
|
|
|
png_byte bit_depth;
|
|
png_structp png_ptr;
|
|
png_infop info_ptr;
|
|
png_bytep *row_pointers;
|
|
png_byte color_type;
|
|
int row_bytes,bytes_per_pixel;
|
|
|
|
unsigned char header[8];
|
|
|
|
/* open file and test for it being a png */
|
|
infile = fopen(filename, "rb");
|
|
if (infile==NULL) {
|
|
fprintf(stderr,"Error! Could not open %s\n",filename);
|
|
return -1;
|
|
}
|
|
|
|
/* Check the header */
|
|
fread(header, 1, 8, infile);
|
|
if (png_sig_cmp(header, 0, 8)) {
|
|
fprintf(stderr,"Error! %s is not a PNG file\n",filename);
|
|
return -1;
|
|
}
|
|
|
|
/* initialize stuff */
|
|
png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
|
|
if (!png_ptr) {
|
|
fprintf(stderr,"Error create_read_struct\n");
|
|
exit(-1);
|
|
}
|
|
|
|
info_ptr = png_create_info_struct(png_ptr);
|
|
if (!info_ptr) {
|
|
fprintf(stderr,"Error png_create_info_struct\n");
|
|
exit(-1);
|
|
}
|
|
|
|
png_init_io(png_ptr, infile);
|
|
png_set_sig_bytes(png_ptr, 8);
|
|
|
|
png_read_info(png_ptr, info_ptr);
|
|
|
|
width = png_get_image_width(png_ptr, info_ptr);
|
|
height = png_get_image_height(png_ptr, info_ptr);
|
|
*xsize=width;
|
|
*ysize=height;
|
|
|
|
color_type = png_get_color_type(png_ptr, info_ptr);
|
|
bit_depth = png_get_bit_depth(png_ptr, info_ptr);
|
|
|
|
if (width!=140) {
|
|
fprintf(stderr,"Unknown width %d\n",width);
|
|
return -1;
|
|
}
|
|
|
|
if (height!=192) {
|
|
fprintf(stderr,"Unknown height %d\n",height);
|
|
return -1;
|
|
}
|
|
|
|
image=calloc(width*height,sizeof(unsigned char));
|
|
if (image==NULL) {
|
|
fprintf(stderr,"Error allocating image\n");
|
|
return -1;
|
|
}
|
|
|
|
if (debug) {
|
|
fprintf(stderr,"PNG: width=%d height=%d depth=%d\n",
|
|
width,height,bit_depth);
|
|
if (color_type==PNG_COLOR_TYPE_RGB) {
|
|
fprintf(stderr,"Type RGB\n");
|
|
}
|
|
else if (color_type==PNG_COLOR_TYPE_RGB_ALPHA) {
|
|
fprintf(stderr,"Type RGBA\n");
|
|
}
|
|
else if (color_type==PNG_COLOR_TYPE_PALETTE) {
|
|
fprintf(stderr,"Type palette\n");
|
|
}
|
|
}
|
|
|
|
/* If palette, expand to RGB automatically */
|
|
if (color_type == PNG_COLOR_TYPE_PALETTE) {
|
|
png_set_expand(png_ptr);
|
|
}
|
|
|
|
png_read_update_info(png_ptr, info_ptr);
|
|
|
|
|
|
row_bytes = png_get_rowbytes(png_ptr, info_ptr);
|
|
// *pChannels = (int)png_get_channels(png_ptr, info_ptr);
|
|
bytes_per_pixel=row_bytes/width;
|
|
|
|
if (debug) {
|
|
fprintf(stderr,"Rowbytes=%d bytes per pixel=%d\n",
|
|
row_bytes,row_bytes/width);
|
|
}
|
|
|
|
row_pointers = (png_bytep*) malloc(sizeof(png_bytep) * height);
|
|
for (y=0; y<height; y++) {
|
|
row_pointers[y] = (png_byte*)malloc(row_bytes);
|
|
}
|
|
|
|
png_read_image(png_ptr, row_pointers);
|
|
|
|
png_read_end(png_ptr, NULL);
|
|
|
|
fclose(infile);
|
|
|
|
out_ptr=image;
|
|
|
|
|
|
for(y=0;y<height;y++) {
|
|
for(x=0;x<width;x++) {
|
|
|
|
color= (row_pointers[y][x*bytes_per_pixel]<<16)+
|
|
(row_pointers[y][x*bytes_per_pixel+1]<<8)+
|
|
(row_pointers[y][x*bytes_per_pixel+2]);
|
|
// if (debug) {
|
|
// fprintf(stderr,"%x ",color);
|
|
// }
|
|
|
|
a2_color=convert_color(color);
|
|
|
|
if (debug) {
|
|
fprintf(stderr,"%x",a2_color);
|
|
}
|
|
*out_ptr=a2_color;
|
|
out_ptr++;
|
|
}
|
|
if (debug) fprintf(stderr,"\nNR: ");
|
|
}
|
|
|
|
|
|
*image_ptr=image;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Converts a PNG to RAW 8K Hires Image */
|
|
|
|
|
|
static void print_help(char *name,int version) {
|
|
|
|
printf("\npng2dhgr version %s\n",VERSION);
|
|
|
|
if (version) exit(1);
|
|
|
|
printf("\nUsage: %s [-r] [-s] PNGFILE OUTBASE\n\n",name);
|
|
printf("\t[-r] raw, don't prepend with BLOAD addr/size\n");
|
|
printf("\t[-s] short, leave off bottom text area\n");
|
|
printf("\n");
|
|
|
|
exit(1);
|
|
}
|
|
|
|
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 char aux1_colors[16]={
|
|
0x00,0x08,0x44,0x4c,0x22,0x2a,0x66,0x6e,
|
|
0x11,0x19,0x55,0x5d,0x33,0x3b,0x77,0x7f};
|
|
static char main1_colors[16]={
|
|
0x00,0x11,0x08,0x19,0x44,0x55,0x4c,0x5d,
|
|
0x22,0x33,0x2a,0x3b,0x66,0x77,0x6e,0x7f};
|
|
static char aux2_colors[16]={
|
|
0x00,0x22,0x11,0x33,0x08,0x2a,0x19,0x3b,
|
|
0x44,0x66,0x55,0x77,0x4c,0x6e,0x5d,0x7f};
|
|
static char main2_colors[16]={
|
|
0x00,0x44,0x22,0x66,0x11,0x55,0x33,0x77,
|
|
0x08,0x4c,0x2a,0x6e,0x19,0x5d,0x3b,0x7f};
|
|
|
|
static char flipped_colors[16]={
|
|
/* black */ 0x00,
|
|
/* magenta */ 0x08,
|
|
/* dark blue */ 0x01,
|
|
/* purple */ 0x09,
|
|
/* dark green */0x02,
|
|
/* grey 1 */ 0x0a,
|
|
/* med blue */ 0x03,
|
|
/* lt blue */ 0x0b,
|
|
/* brown */ 0x04,
|
|
/* orange */ 0x0c,
|
|
/* grey2 */ 0x05,
|
|
/* pink */ 0x0d,
|
|
/* br green */ 0x06,
|
|
/* yellow */ 0x0e,
|
|
/* aqua */ 0x07,
|
|
/* white */ 0x0f,
|
|
};
|
|
|
|
static int hgr_offset(int y) {
|
|
|
|
int temp,temp2,address;
|
|
temp=y/8;
|
|
temp2=y%8;
|
|
|
|
temp2=temp2*0x400;
|
|
|
|
address=hgr_offset_table[temp]+temp2;
|
|
|
|
return address;
|
|
}
|
|
|
|
static unsigned char apple2_aux[8192],apple2_bin[8192];
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
int xsize=0,ysize=0;
|
|
int c,x,y,color1;
|
|
unsigned char *image;
|
|
unsigned char colors[7];
|
|
|
|
char *filename,*base;
|
|
char outfile[BUFSIZ];
|
|
FILE *aux,*bin;
|
|
|
|
/* Parse command line arguments */
|
|
|
|
while ( (c=getopt(argc, argv, "hvd") ) != -1) {
|
|
|
|
switch(c) {
|
|
|
|
case 'h':
|
|
print_help(argv[0],0);
|
|
break;
|
|
case 'v':
|
|
print_help(argv[0],1);
|
|
break;
|
|
case 'd':
|
|
debug=1;
|
|
break;
|
|
default:
|
|
print_help(argv[0],0);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (optind>=argc) {
|
|
printf("ERROR: Was expecting filename!\n");
|
|
exit(1);
|
|
}
|
|
filename=strdup(argv[optind]);
|
|
|
|
if (optind+1>=argc) {
|
|
base=strdup("OUT");
|
|
}
|
|
else {
|
|
base=strdup(argv[optind+1]);
|
|
}
|
|
|
|
memset(apple2_aux,0,8192);
|
|
memset(apple2_bin,0,8192);
|
|
|
|
if (loadpng(filename,&image,&xsize,&ysize)<0) {
|
|
fprintf(stderr,"Error loading png!\n");
|
|
exit(-1);
|
|
}
|
|
|
|
fprintf(stderr,"Loaded image %d by %d\n",xsize,ysize);
|
|
|
|
for(y=0;y<192;y++) {
|
|
for(x=0;x<20;x++) {
|
|
colors[0]=image[y*140+x*7+0];
|
|
colors[1]=image[y*140+x*7+1];
|
|
colors[2]=image[y*140+x*7+2];
|
|
colors[3]=image[y*140+x*7+3];
|
|
colors[4]=image[y*140+x*7+4];
|
|
colors[5]=image[y*140+x*7+5];
|
|
colors[6]=image[y*140+x*7+6];
|
|
|
|
#if 0
|
|
color1=aux1_colors[colors[0]]&0xf;
|
|
color1|=(aux1_colors[colors[1]]<<4)&0x7f;
|
|
apple2_aux[hgr_offset(y)+(x*2)+0]=color1;
|
|
|
|
color1=(main1_colors[colors[1]]>>3)&0x1;
|
|
color1|=(main1_colors[colors[2]]<<1)&0x1e;
|
|
color1|=(main1_colors[colors[3]]<<5)&0x60;
|
|
apple2_bin[hgr_offset(y)+(x*2)+0]=color1;
|
|
|
|
color1=(aux2_colors[colors[3]]>>2)&0x3;
|
|
color1|=(aux2_colors[colors[4]]<<2)&0x3c;
|
|
color1|=(aux2_colors[colors[5]]<<6)&0x40;
|
|
apple2_aux[hgr_offset(y)+(x*2)+1]=color1;
|
|
|
|
color1=(main2_colors[colors[5]]>>1)&0x7;
|
|
color1|=(main2_colors[colors[6]]<<3)&0x78;
|
|
apple2_bin[hgr_offset(y)+(x*2)+1]=color1;
|
|
#endif
|
|
|
|
#if 0
|
|
|
|
color1=colors[0]&0xf;
|
|
color1|=(colors[1]<<4)&0x7f;
|
|
apple2_aux[hgr_offset(y)+(x*2)+0]=color1;
|
|
|
|
color1=(colors[1]>>3)&0x1;
|
|
color1|=(colors[2]<<1)&0x1e;
|
|
color1|=(colors[3]<<5)&0x60;
|
|
apple2_bin[hgr_offset(y)+(x*2)+0]=color1;
|
|
|
|
color1=(colors[3]>>2)&0x3;
|
|
color1|=(colors[4]<<2)&0x3c;
|
|
color1|=(colors[5]<<6)&0x40;
|
|
apple2_aux[hgr_offset(y)+(x*2)+1]=color1;
|
|
|
|
color1=(colors[5]>>1)&0x7;
|
|
color1|=(colors[6]<<3)&0x78;
|
|
apple2_bin[hgr_offset(y)+(x*2)+1]=color1;
|
|
#endif
|
|
|
|
#if 1
|
|
// 33 4c
|
|
// 0011 0011 0100 1100
|
|
// PDDC CCCB PGGG GFFF
|
|
// B=1XXX
|
|
// C=1001
|
|
// D=XX01
|
|
// F=100X
|
|
// G=1001
|
|
color1=flipped_colors[colors[0]]&0xf;
|
|
color1|=(flipped_colors[colors[1]]<<4)&0x7f;
|
|
apple2_aux[hgr_offset(y)+(x*2)+0]=color1;
|
|
|
|
color1=(flipped_colors[colors[1]]>>3)&0x1;
|
|
color1|=(flipped_colors[colors[2]]<<1)&0x1e;
|
|
color1|=(flipped_colors[colors[3]]<<5)&0x60;
|
|
apple2_bin[hgr_offset(y)+(x*2)+0]=color1;
|
|
|
|
color1=(flipped_colors[colors[3]]>>2)&0x3;
|
|
color1|=(flipped_colors[colors[4]]<<2)&0x3c;
|
|
color1|=(flipped_colors[colors[5]]<<6)&0x40;
|
|
apple2_aux[hgr_offset(y)+(x*2)+1]=color1;
|
|
|
|
color1=(flipped_colors[colors[5]]>>1)&0x7;
|
|
color1|=(flipped_colors[colors[6]]<<3)&0x78;
|
|
apple2_bin[hgr_offset(y)+(x*2)+1]=color1;
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
sprintf(outfile,"%s.AUX",base);
|
|
aux=fopen(outfile,"w");
|
|
if (aux==NULL) {
|
|
fprintf(stderr,"Error opening %s\n",outfile);
|
|
exit(1);
|
|
}
|
|
fwrite(apple2_aux,8192,sizeof(unsigned char),aux);
|
|
fclose(aux);
|
|
|
|
sprintf(outfile,"%s.BIN",base);
|
|
bin=fopen(outfile,"w");
|
|
if (bin==NULL) {
|
|
fprintf(stderr,"Error opening %s\n",outfile);
|
|
exit(1);
|
|
}
|
|
fwrite(apple2_bin,8192,sizeof(unsigned char),bin);
|
|
fclose(bin);
|
|
|
|
return 0;
|
|
|
|
}
|