retroforth/tools/embedimage.c
crc f9e65e4d21 increase max image size for retro-embedimage
FossilOrigin-Name: cfcfaab2a440a90fb113847cb3d20bab3ae8b38cf94c504ba78e425c0501bbba
2019-02-21 21:59:35 +00:00

76 lines
1.6 KiB
C

/* ____ ____ ______ ____ ___
|| \\ || | || | || \\ // \\
||_// ||== || ||_// (( ))
|| \\ ||___ || || \\ \\_//
a personal, minimalistic forth
This loads an image file and generates a C formatted
output. It's used to create the `image.c` that gets
linked into `rre`.
Copyright (c) 2016, 2017 Charles Childers
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdint.h>
#define CELL int32_t
CELL memory[512*1024];
CELL ngaLoadImage(char *imageFile) {
FILE *fp;
CELL imageSize;
long fileLen;
if ((fp = fopen(imageFile, "rb")) != NULL) {
/* Determine length (in cells) */
fseek(fp, 0, SEEK_END);
fileLen = ftell(fp) / sizeof(CELL);
rewind(fp);
/* Read the file into memory */
imageSize = fread(&memory, sizeof(CELL), fileLen, fp);
fclose(fp);
}
else {
printf("Unable to find the ngaImage!\n");
exit(1);
}
return imageSize;
}
void output_header(int size) {
printf("#include <stdint.h>\n");
printf("int32_t ngaImageCells = %d;\n", size);
printf("int32_t ngaImage[] = { ");
}
int main(int argc, char **argv) {
int32_t size = 0;
int32_t i;
int32_t n;
if (argc == 2)
size = ngaLoadImage(argv[1]);
else
size = ngaLoadImage("ngaImage");
output_header(size);
i = 0;
n = 0;
while (i < size) {
n++;
if (n == 20) {
printf("\n ");
n = 0;
}
if (i+1 < size)
printf("%d,", memory[i]);
else
printf("%d };\n", memory[i]);
i++;
}
exit(0);
}