X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=bitmaps%2Fconvert.c;fp=bitmaps%2Fconvert.c;h=e1d080accbf372ed67f33f3d37f200909ad23690;hb=ea750683ac62717dd7346de17b5ae072622ff92a;hp=0000000000000000000000000000000000000000;hpb=2ffe5cbbbec01e48d66d490d14de3dcfb49a2703;p=xboard.git

diff --git a/bitmaps/convert.c b/bitmaps/convert.c
new file mode 100644
index 0000000..e1d080a
--- /dev/null
+++ b/bitmaps/convert.c
@@ -0,0 +1,73 @@
+#include <stdio.h>
+
+// [HGM] This program converts a WinBoard monochrome .bmp piece-symbol bitmap file
+//       to a .bm C-source file suitable for inclusion in xboard as buit-in bitmap.
+//       You will have to convert the bitmaps one by one, and re-direct the output to the desired file!
+
+main(int argc, char **argv)
+{
+	int i, j, k, d, cnt; char c, h, w, *p, data[10000], *name;
+	FILE *f;
+
+	if(argc<2) { printf("usage is: convert <bmp filename>\n"); exit(0); }
+	f = fopen(argv[1], "rb");
+	if(f == NULL) { printf("file %s not found\n", argv[1]); exit(0); }
+
+	if(fscanf(f, "BM%c", &i) != 1) { printf("%s does not have bitmap format\n"); exit(0); }
+	for(i=0; i<15; i++) fgetc(f); fscanf(f, "%c%c%c%c%c", &h, &i, &i, &i, &w);
+	for(i=0; i<39; i++) fgetc(f);
+
+// printf("h=%d, w=%d\n", h, w);
+
+	p = data;
+	for(i=0; i<h; i++) {
+		for(j=0; j<w; j+=32) {
+			c = fgetc(f);
+			for(k=0; k<8; k++) {
+				d = (d>>1) | (c&0x80);
+				c <<= 1;
+			}
+			*p++ = d;
+			c = fgetc(f);
+			for(k=0; k<8; k++) {
+				d = (d>>1) | (c&0x80);
+				c <<= 1;
+			}
+			*p++ = d;
+			c = fgetc(f);
+			for(k=0; k<8; k++) {
+				d = (d>>1) | (c&0x80);
+				c <<= 1;
+			}
+			*p++ = d;
+			c = fgetc(f);
+			for(k=0; k<8; k++) {
+				d = (d>>1) | (c&0x80);
+				c <<= 1;
+			}
+			*p++ = d;
+		}
+	}
+
+	name = argv[1];
+	for(i=0; argv[1][i]; i++) if(argv[1][i] == '\\') name = argv[1]+i+1;
+	for(i=0; name[i]; i++) if(name[i] == '.') name[i] = 0;
+	printf("#define %s_width %d\n", name, w);
+	printf("#define %s_height %d\n", name, h);
+	printf("static unsigned char %s_bits[] = {\n", name);
+	cnt = 0;
+	for(i=h-1; i>=0; i--) {
+		for(j=0; j<w; j+=8) {
+			c = ~data[i*((w+31)/8&~3)+j/8];
+			if(w-j<8) c &= 255>>(8+j-w);
+//			for(k=0; k<8; k++) {
+//				printf("%c", c&1 ? 'X' : '.');
+//				c >>= 1;
+//			}
+			if(cnt!=0) printf(",");
+			printf("0x%02x", c&255);
+			if(++cnt % 15 == 0) { printf("\n"); }
+		}
+	}
+	printf("\n};\n");
+}