* Add a lookback table in the output. Will be handy later.

* Now sortchars’s output can be directly saved to a C header file.

tools/sortchars.c

@@ -39,6 +39,7 @@ int bestchar[FULLRANGE];
 static int curve[17] = /* 17 instead of 16 */
 {
     0, 4, 6, 8, 9, 10, 11, 12, 12, 13, 13, 14, 14, 15, 15, 15, 15
+    //0, 3, 5, 7, 8, 9, 10, 11, 12, 13, 13, 14, 14, 15, 15, 15, 15
     //0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 15
 };
 
@@ -163,7 +164,7 @@ int main(int argc, char *argv[])
 
     /* Print results */
     printf("/* Generated by sortchars.c */\n");
-    printf("static char const lookup_ascii[%i] =\n{\n    ", FULLRANGE);
+    printf("static char const cells_to_ascii[%i] =\n{\n    ", FULLRANGE);
     for(i = 0; i < FULLRANGE; i++)
     {
         ret = cucul_utf32_to_utf8(utf8, bestchar[i]);
@@ -172,6 +173,16 @@ int main(int argc, char *argv[])
         if((i % 16) == 15 && i != FULLRANGE - 1)
             printf("\n    ");
     }
+    printf("\n};\n\n");
+    printf("static uint16_t const ascii_to_cells[%i] =\n{\n    ", GLYPHS);
+    for(i = 0; i < GLYPHS; i++)
+    {
+        ret = cucul_utf32_to_utf8(utf8, bestchar[i]);
+        utf8[ret] = '\0';
+        printf("0x%03x, ", allbits[i]);
+        if((i % 8) == 7 && i != GLYPHS - 1)
+            printf("\n    ");
+    }
     printf("\n};\n");
 
     cucul_free_canvas(cv);
@@ -229,6 +240,7 @@ static void testcircle(void)
         for(x = 0; x < WIDTH * DX; x++)
             dst[y * WIDTH * DX + x] = (int)buf[(y * 256 / (HEIGHT * DY)) * 256 + (x * 256 / (WIDTH * DX))] * RANGE / 256;
 
+    printf("/* example:\n");
     for(y = 0; y < HEIGHT; y++)
     {
         for(x = 0; x < WIDTH; x++)
@@ -249,5 +261,6 @@ static void testcircle(void)
 
         printf("\n");
     }
+    printf("*/\n");
 }