Add glf patching utility

tools/Makefile

@@ -0,0 +1,10 @@
+CC=gcc
+
+CFLAGS=-Wall -pedantic -pipe -O2
+
+.PHONY: all
+
+all: glfpatch
+
+glfpatch: glfpatch.c
+	${CC} ${CFLAGS} -o $@ $<

tools/glfpatch.c

@@ -0,0 +1,70 @@
+/* Conversion utility to hackpatch glf files. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef struct
+{
+    float dx, dy;
+    float tx1, ty1;
+    float tx2, ty2;
+} GLFontChar;
+
+typedef struct
+{
+    unsigned int tex; /* tex id, unused */
+    unsigned int tw; /* tex width */
+    unsigned int th; /* tex height */
+    unsigned int sc; /* start char number */
+    unsigned int ec; /* end char number */
+    unsigned int chrs; /* chars cound, unused*/
+} GLFontHeader;
+
+#define CHR_SIZE_KOEFF_X 8.0f/256.0f
+#define CHR_SIZE_KOEFF_Y 8.5f/256.0f
+
+int main(int argc, char **argv)
+{
+    unsigned int i, num_chars;
+    GLFontChar cc;
+    GLFontHeader h;
+    FILE *in, *out;
+    
+    
+    in = fopen("in.glf", "rb");
+    out = fopen("out.glf", "wb");
+    
+    if(!(in && out))
+        return 1;
+
+    fread(&h, 1, sizeof(h), in);
+
+    /* Fix it. */
+    h.tw *= 2;
+    h.th *= 2;
+    
+    fwrite(&h, 1, sizeof(h), out);
+
+    num_chars = h.ec - h.sc + 1;
+    
+
+    for(i = 0; i < num_chars; ++i)
+    {
+        fread(&cc, 1, sizeof(cc), in);
+        
+        /* Fix it. */
+        cc.dx *= CHR_SIZE_KOEFF_X;
+        cc.dy *= CHR_SIZE_KOEFF_Y;
+        
+        fwrite(&cc, 1, sizeof(cc), out);
+    }
+    
+    /* We don't write actual image data. */
+
+    fclose(in);
+    fclose(out);
+
+    return 0;
+}
+