Sprites in Repo geworfen (damit nichts verlorengeht)

[hackover2013-badge-firmware.git] / sprites / xpm_sprite_converter.c

diff --git a/sprites/xpm_sprite_converter.c b/sprites/xpm_sprite_converter.c
new file mode 100644 (file)
index 0000000..5d3eead
--- /dev/null
+++ b/sprites/xpm_sprite_converter.c
@@ -0,0 +1,64 @@
+#ifndef XPM_FILE
+#error "XPM_FILE undefined"
+#endif
+
+#ifndef XPM_NAME
+#error "XPM_NAME undefined"
+#endif
+
+#define STRINGIFY_I(x) #x
+#define STRINGIFY(x) STRINGIFY_I(x)
+
+#include STRINGIFY(XPM_FILE)
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(void) {
+  int width, height, color_count, foo;
+  char black = '\0';
+  uint8_t *data;
+
+  if(4 != sscanf(XPM_NAME[0], "%d %d %d %d", &width, &height, &color_count, &foo)) {
+    fputs("Fehler beim Parsen der Dimensionen\n", stderr);
+    return -1;
+  }
+
+  for(int i = 0; i < color_count; ++i) {
+    size_t len = strlen((char*) XPM_NAME[i + 1]);
+    if(len > 7 && strcmp((char*) XPM_NAME[i + 1] + len - 7, "#000000") == 0) {
+      black = XPM_NAME[i + 1][0];
+      break;
+    }
+  }
+
+  if(!black) {
+    fputs("Konnte Schwarz nicht identifizieren.\n", stderr);
+    return -1;
+  }
+
+  data = calloc(width * height / 8 + 1, 1);
+
+  printf("{ %d, %d, (uint8_t const *) \"", width, height);
+
+  if(data) {
+    int y, x;
+    int i = 0, j;
+
+    for(x = 0; x < width; ++x) {
+      for(y = 0; y < height; ++y) {
+       data[i / 8] |= (XPM_NAME[y + 1 + color_count][x] == black) << i % 8;
+       ++i;
+      }
+    }
+
+    for(j = 0; j < i / 8 + (i % 8 != 0); ++j) {
+      printf("\\x%02x", data[j]);
+    }
+    puts("\" }");
+  }
+
+  free(data);
+}