From af641426fad35cd857c1f14bda523db3d85a70cd Mon Sep 17 00:00:00 2001
From: 3gg <3gg@shellblade.net>
Date: Sat, 4 May 2024 16:44:28 -0700
Subject: Initial commit.

---
 font/font.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 font/font.c

(limited to 'font/font.c')

diff --git a/font/font.c b/font/font.c
new file mode 100644
index 0000000..2d30c50
--- /dev/null
+++ b/font/font.c
@@ -0,0 +1,45 @@
+#include <font.h>
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static size_t GetFileSize(FILE* file) {
+  fseek(file, 0, SEEK_END);
+  const size_t size = ftell(file);
+  fseek(file, 0, SEEK_SET);
+  return size;
+}
+
+FontAtlas* LoadFontAtlas(const char* path) {
+  assert(path);
+
+  FILE*      file  = NULL;
+  FontAtlas* atlas = 0;
+
+  if ((file = fopen(path, "rb")) == NULL) {
+    goto cleanup;
+  }
+
+  const size_t size = GetFileSize(file);
+  if (size == (size_t)-1) {
+    goto cleanup;
+  }
+
+  atlas = calloc(1, size);
+  if (!atlas) {
+    goto cleanup;
+  }
+
+  if (fread(atlas, size, 1, file) != 1) {
+    free(atlas);
+    atlas = 0;
+  }
+
+cleanup:
+  if (file != NULL) {
+    fclose(file);
+  }
+  return atlas;
+}
-- 
cgit v1.2.3