fixed bugs, added progress bar, and more

[dosdemo] / tools / img2bin / img2bin.c

diff --git a/tools/img2bin/img2bin.c b/tools/img2bin/img2bin.c
new file mode 100644 (file)
index 0000000..af43128
--- /dev/null
+++ b/tools/img2bin/img2bin.c
@@ -0,0 +1,71 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <errno.h>
+#include "imago2.h"
+
+int proc_image(const char *fname);
+
+int main(int argc, char **argv)
+{
+       int i;
+
+       for(i=1; i<argc; i++) {
+               if(proc_image(argv[i]) == -1) {
+                       return 1;
+               }
+       }
+       return 0;
+}
+
+int proc_image(const char *fname)
+{
+       int i, xsz, ysz, npixels, len;
+       unsigned char *pixels24, *sptr;
+       uint16_t *pixels16, *dptr;
+       char *outfname, *suffix;
+       FILE *out;
+
+       len = strlen(fname);
+       outfname = alloca(len + 4);
+       memcpy(outfname, fname, len + 1);
+       if((suffix = strrchr(outfname, '.')) && suffix > outfname) {
+               strcpy(suffix, ".img");
+       } else {
+               strcpy(outfname + len, ".img");
+       }
+
+       if(!(pixels24 = img_load_pixels(fname, &xsz, &ysz, IMG_FMT_RGB24))) {
+               fprintf(stderr, "failed to load image: %s\n", fname);
+               return -1;
+       }
+       npixels = xsz * ysz;
+       if(!(pixels16 = malloc(npixels * 2))) {
+               perror("failed to allocate output image buffer");
+               img_free_pixels(pixels24);
+               return -1;
+       }
+
+       if(!(out = fopen(outfname, "wb"))) {
+               fprintf(stderr, "failed to open %s for writing: %s\n", outfname, strerror(errno));
+               img_free_pixels(pixels24);
+               free(pixels16);
+               return -1;
+       }
+
+       sptr = pixels24;
+       dptr = pixels16;
+       for(i=0; i<npixels; i++) {
+               int r = *sptr++ >> 3;
+               int g = *sptr++ >> 2;
+               int b = *sptr++ >> 3;
+               *dptr++ = (r << 11) | (g << 5) | b;
+       }
+       img_free_pixels(pixels24);
+
+       fwrite(pixels16, 2, npixels, out);
+       fclose(out);
+       free(pixels16);
+       return 0;
+}