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gr-sim: convert 40x48d code to use common rle code

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This commit is contained in:
Vince Weaver 2019-09-04 16:13:17 -04:00
parent 1c6ef2ead6
commit 8a819939ed
2 changed files with 11 additions and 170 deletions
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6
gr-utils/Makefile
View File

@ -50,10 +50,10 @@ png2lz4.o: png2lz4.c loadpng.h
###
png_to_40x48d: png_to_40x48d.o
$(CC) $(LFLAGS) -o png_to_40x48d png_to_40x48d.o -lpng
png_to_40x48d: png_to_40x48d.o rle_common.o
$(CC) $(LFLAGS) -o png_to_40x48d png_to_40x48d.o rle_common.o -lpng
png_to_40x48d.o: png_to_40x48d.c
png_to_40x48d.o: png_to_40x48d.c rle_common.h
$(CC) $(CFLAGS) -c png_to_40x48d.c
###

175
gr-utils/png_to_40x48d.c
View File

@ -12,9 +12,7 @@
#include <png.h>
#define OUTPUT_C 0
#define OUTPUT_ASM 1
#include "rle_common.h"
static int convert_color(int color,int which) {
@ -347,163 +345,6 @@ int loadpng(char *filename, unsigned char **image_ptr, int *xsize, int *ysize,
return 0;
}
/*****************************************/
/* \/ \/ */
/* Converts a PNG to RLE compressed data */
/*****************************************/
static int print_run(int count, int out_type, int run, int last) {
int size=0;
if (count==0) {
if (out_type==OUTPUT_C) {
printf("\n\t");
}
else {
printf("\n\t.byte ");
}
}
else {
if (out_type==OUTPUT_C) {
}
else {
printf(", ");
}
}
if (run==1) {
if (out_type==OUTPUT_C) {
printf("0x%02X,",last);
}
else {
printf("$%02X",last);
}
size++;
}
if (run==2) {
if (out_type==OUTPUT_C) {
printf("0x%02X,0x%02X,",last,last);
}
else {
printf("$%02X,$%02X",last,last);
}
size+=2;
}
if ((run>2) && (run<16)) {
if (out_type==OUTPUT_C) {
printf("0x%02X,0x%02X,",0xA0|run,last);
}
else {
printf("$%02X,$%02X",0xA0|run,last);
}
size+=2;
}
if (run>=16) {
if (out_type==OUTPUT_C) {
printf("0x%02X,0x%02X,0x%02X,",0xA0,run,last);
}
else {
printf("$%02X,$%02X,$%02X",0xA0,run,last);
}
size+=3;
}
return size;
}
int rle_smaller(int out_type, char *varname,
int xsize,int ysize, unsigned char *image,int high) {
int run=0;
int x;
int last=-1,next;
int size=0;
int count=0;
x=0;
/* Write out xsize and ysize */
if (out_type==OUTPUT_C) {
fprintf(stdout,"unsigned char %s_%s[]={\n",varname,
high?"high":"low");
fprintf(stdout,"\t0x%X, /* ysize=%d */",xsize,ysize);
}
else {
fprintf(stdout,"%s_%s:",varname,high?"high":"low");
fprintf(stdout,"\t.byte $%X ; ysize=%d",xsize,ysize);
}
size+=2;
/* Get first top/bottom color pair */
last=image[x];
run++;
x++;
while(1) {
/* get next top/bottom color pair */
next=image[x];
if ((next&0xf0)==0xA0) {
fprintf(stderr,"Warning! Using color A (grey2)!\n");
next&=~0xf0;
next|=0x50; // substitute grey1
}
/* If color change (or too big) then output our run */
/* Note 0xff for run length is special case meaning "finished" */
if ((next!=last) || (run>254)) {
size+=print_run(count,out_type,run,last);
count++;
run=0;
last=next;
}
x++;
/* If we reach the end */
if (x>=xsize*(ysize/2)) {
run++;
size+=print_run(count,out_type,run,last);
break;
}
run++;
if (count>6) count=0;
}
/* Print closing marker */
if (out_type==OUTPUT_C) {
fprintf(stdout,"0xA1,");
fprintf(stdout,"\t};\n");
} else {
fprintf(stdout,"\n\t.byte $A1\n");
}
size+=1;
return size;
}
/* Converts a PNG to RLE compressed data */
int main(int argc, char **argv) {
@ -512,6 +353,7 @@ int main(int argc, char **argv) {
int xsize,ysize;
int size=0;
int out_type=OUTPUT_C;
char output_name[BUFSIZ];
if (argc<4) {
fprintf(stderr,"Usage:\t%s type INFILE varname\n\n",argv[0]);
@ -536,11 +378,9 @@ int main(int argc, char **argv) {
fprintf(stderr,"Loaded image %d by %d\n",xsize,ysize);
// size=rle_original(out_type,argv[3],
// xsize,ysize,image);
size=rle_smaller(out_type,argv[3],
xsize,ysize,image,0);
sprintf(output_name,"%s_low",argv[3]);
size=rle_smaller(out_type,output_name,
xsize,ysize,image);
fprintf(stderr,"Size %d bytes\n",size);
@ -554,8 +394,9 @@ int main(int argc, char **argv) {
// size=rle_original(out_type,argv[3],
// xsize,ysize,image);
size=rle_smaller(out_type,argv[3],
xsize,ysize,image,1);
sprintf(output_name,"%s_high",argv[3]);
size=rle_smaller(out_type,output_name,
xsize,ysize,image);
fprintf(stderr,"Size %d bytes\n",size);