raze-gles/polymer/eduke32/build/src/util/generateicon.c

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C
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#include <stdio.h>
#include "inttypes.h"
#include "kplib.h"
#include "compat.h"
struct icon {
int32_t width,height;
intptr_t *pixels;
unsigned char *mask;
};
int writeicon(FILE *fp, struct icon *ico)
{
int i;
Bfprintf(fp,
"#include \"sdlayer.h\"\n"
"\n"
);
Bfprintf(fp,"static unsigned int sdlappicon_pixels[] = {\n");
for (i=0;i<ico->width*ico->height;i++) {
if ((i%6) == 0) Bfprintf(fp,"\t");
else Bfprintf(fp," ");
Bfprintf(fp, "0x%08x,", B_LITTLE32(ico->pixels[i]));
if ((i%6) == 5) Bfprintf(fp,"\n");
}
if ((i%16) > 0) Bfprintf(fp, "\n");
Bfprintf(fp, "};\n\n");
Bfprintf(fp,"static unsigned char sdlappicon_mask[] = {\n");
for (i=0;i<((ico->width+7)/8)*ico->height;i++) {
if ((i%14) == 0) Bfprintf(fp,"\t");
else Bfprintf(fp," ");
Bfprintf(fp, "%3d,", ico->mask[i]);
if ((i%14) == 13) Bfprintf(fp,"\n");
}
if ((i%16) > 0) Bfprintf(fp, "\n");
Bfprintf(fp, "};\n\n");
Bfprintf(fp,
"struct sdlappicon sdlappicon = {\n"
" %d,%d, // width,height\n"
" sdlappicon_pixels,\n"
" sdlappicon_mask\n"
"};\n",
ico->width, ico->height
);
return 0;
}
int main(int argc, char **argv)
{
struct icon icon;
int32_t bpl;
int i;
unsigned char *maskp, bm, *pp;
if (argc<2) {
Bfprintf(stderr, "generateicon <picture file>\n");
return 1;
}
memset(&icon, 0, sizeof(icon));
kpzload(argv[1], (intptr_t*)&icon.pixels, (int32_t*)&bpl, (int32_t*)&icon.width, (int32_t*)&icon.height);
if (!icon.pixels) {
Bfprintf(stderr, "Failure loading %s\n", argv[1]);
return 1;
}
if (bpl != icon.width * 4) {
Bfprintf(stderr, "bpl != icon.width * 4\n");
Bfree(icon.pixels);
return 1;
}
icon.mask = (unsigned char *)Bcalloc(icon.height, (icon.width+7)/8);
if (!icon.mask) {
Bfprintf(stderr, "Out of memory\n");
Bfree(icon.pixels);
return 1;
}
maskp = icon.mask;
bm = 1;
pp = (unsigned char *)icon.pixels;
for (i=0; i<icon.height*icon.width; i++) {
if (bm == 0) {
bm = 1;
maskp++;
}
{
unsigned char c = pp[0];
pp[0] = pp[2];
pp[2] = c;
}
if (pp[3] > 0) *maskp |= bm;
bm <<= 1;
pp += 4;
}
writeicon(stdout, &icon);
Bfree(icon.pixels);
Bfree(icon.mask);
return 0;
}