1 files changed, 38 insertions, 0 deletions
diff --git a/image/BMPHeaders.h b/image/BMPHeaders.h
new file mode 100644
index 000000000..0fdc806bc
--- /dev/null
+++ b/image/BMPHeaders.h
@@ -0,0 +1,38 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_image_BMPHeaders_h
+#define mozilla_image_BMPHeaders_h
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace mozilla {
+namespace image {
+namespace bmp {
+
+// The length of the file header as defined in the BMP spec.
+static const size_t FILE_HEADER_LENGTH = 14;
+
+// This lengths of the info header for the different BMP versions.
+struct InfoHeaderLength {
+  enum {
+    WIN_V2 = 12,
+    WIN_V3 = 40,
+    WIN_V4 = 108,
+    WIN_V5 = 124,
+
+    // OS2_V1 is omitted; it's the same as WIN_V2.
+    OS2_V2_MIN = 16,    // Minimum allowed value for OS2v2.
+    OS2_V2_MAX = 64,    // Maximum allowed value for OS2v2.
+
+    WIN_ICO = WIN_V3,
+  };
+};
+
+} // namespace bmp
+} // namespace image
+} // namespace mozilla
+
+#endif // mozilla_image_BMPHeaders_h