gr-utils: add a png2gr target

This commit is contained in:
Vince Weaver 2017-04-30 22:22:07 -04:00
parent b04dc5070b
commit b483313d94
3 changed files with 224 additions and 1 deletions

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@ -5,19 +5,21 @@ all:
cd asoft_presenter && make
cd dos33fs-utils && make
cd hgr-utils && make
cd gr-utils && make
install:
cd asoft_basic-utils && make install
cd asoft_presenter && make install
cd dos33fs-utils && make install
cd hgr-utils && make install
cd gr-utils && make install
clean:
cd asoft_basic-utils && make clean
cd asoft_presenter && make clean
cd dos33fs-utils && make clean
cd hgr-utils && make clean
cd gr-utils && make clean
rm -f *~
test:

18
gr-utils/Makefile Normal file
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@ -0,0 +1,18 @@
include ../Makefile.inc
all: png2gr
png2gr: png2gr.o
$(CC) $(LFLAGS) -lpng -o png2gr png2gr.o
png2gr.o: png2gr.c
$(CC) $(CFLAGS) -c png2gr.c
install:
cp png2gr $(INSTALL_LOC)
clean:
rm -f *~ *.o png2gr

203
gr-utils/png2gr.c Normal file
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@ -0,0 +1,203 @@
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <png.h>
/* TODO: */
/* 40x48 images */
/* 80x40, 80x48 double-highres images */
int main(int argc, char **argv) {
int image[40][40];
int x,y;
FILE *infile,*outfile;
int debug=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);
}
int width, height;
png_byte color_type;
png_byte bit_depth;
png_structp png_ptr;
png_infop info_ptr;
int number_of_passes;
png_bytep * row_pointers;
unsigned char header[8];
/* open file and test for it being a png */
infile = fopen(argv[1], "rb");
if (infile==NULL) {
fprintf(stderr,"Error! Could not open %s\n",argv[1]);
exit(-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",argv[1]);
exit(-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);
color_type = png_get_color_type(png_ptr, info_ptr);
bit_depth = png_get_bit_depth(png_ptr, info_ptr);
if (debug) {
printf("PNG: width=%d height=%d depth=%d\n",width,height,bit_depth);
}
number_of_passes = png_set_interlace_handling(png_ptr);
png_read_update_info(png_ptr, info_ptr);
row_pointers = (png_bytep*) malloc(sizeof(png_bytep) * height);
for (y=0; y<height; y++) {
row_pointers[y] = (png_byte*) malloc(png_get_rowbytes(png_ptr,info_ptr));
}
png_read_image(png_ptr, row_pointers);
fclose(infile);
int color;
for(y=0;y<40;y++) {
for(x=0;x<40;x++) {
color= (row_pointers[y][x*2*4]<<16)+
(row_pointers[y][x*2*4+1]<<8)+
(row_pointers[y][x*2*4+2]);
if (debug) {
printf("%x ",color);
// printf("(%x,%x,%x,%x) ",
// row_pointers[y][x*2*4],
// row_pointers[y][x*2*4+1],
// row_pointers[y][x*2*4+2],
// row_pointers[y][x*2*4+3]);
}
switch(color) {
case 0: image[x][y]=0; /* black */
break;
case 0xe31e60: image[x][y]=1; /* magenta */
break;
case 0x604ebd: image[x][y]=2; /* dark blue */
break;
case 0xff44fd: image[x][y]=3; /* purple */
break;
case 0xa360: image[x][y]=4; /* dark green */
break;
case 0x9c9c9c: image[x][y]=5; /* grey 1 */
break;
case 0x14cffd: image[x][y]=6; /* medium blue */
break;
case 0xd0c3ff: image[x][y]=7; /* light blue */
break;
case 0x607203: image[x][y]=8; /* brown */
break;
case 0xff6a3c: image[x][y]=9; /* orange */
break;
case 0x9d9d9d: image[x][y]=10; /* grey 2 */
break;
case 0xffa0d0: image[x][y]=11; /* pink */
break;
case 0x14f53c: image[x][y]=12; /* bright green */
break;
case 0xd0dd8d: image[x][y]=13; /* yellow */
break;
case 0x72ffd0: image[x][y]=14; /* aqua */
break;
case 0xffffff: image[x][y]=15; /* white */
break;
default:
printf("Unknown color %x\n",color);
image[x][y]=0; break;
}
}
if (debug) printf("\n");
}
/* Stripe test image */
// for(x=0;x<40;x++) for(y=0;y<40;y++) image[x][y]=y%16;
/*
Addr Row /80 %40
$400 0 0 0 0
$428 28 16 0
$450 50 32 0
$480 80 2 1
$4A8 a8 18 1
$4D0 d0 34 1
$500 100 3 2
0,0 0,1 0,2....0,39 16,0 16,1 ....16,39 32,0..32,39, X X X X X X X X
*/
int row=0;
int col=0;
int enough=0;
x=0;
while(1) {
fputc( image[col][row] | (image[col][row+1]<<4),outfile);
x++;
if (x>0x3f8) break;
enough++;
if (enough>119) {
fputc(0,outfile);
fputc(0,outfile);
fputc(0,outfile);
fputc(0,outfile);
fputc(0,outfile);
fputc(0,outfile);
fputc(0,outfile);
fputc(0,outfile);
enough=0;
}
col++;
if (col>39) {
col=0;
row+=16;
if (row>47) row-=46;
}
}
fclose(outfile);
return 0;
}