image/BMPHeaders.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef mozilla_image_BMPHeaders_h
   6 #define mozilla_image_BMPHeaders_h
   7
   8 #include <stddef.h>
   9 #include <stdint.h>
  10
  11 namespace mozilla {
  12 namespace image {
  13 namespace bmp {
  14
  15 // The length of the file header as defined in the BMP spec.
  16 static const size_t FILE_HEADER_LENGTH = 14;
  17
  18 // This lengths of the info header for the different BMP versions.
  19 struct InfoHeaderLength {
  20   enum {
  21     WIN_V2 = 12,
  22     WIN_V3 = 40,
  23     WIN_V4 = 108,
  24     WIN_V5 = 124,
  25
  26     // OS2_V1 is omitted; it's the same as WIN_V2.
  27     OS2_V2_MIN = 16,    // Minimum allowed value for OS2v2.
  28     OS2_V2_MAX = 64,    // Maximum allowed value for OS2v2.
  29
  30     WIN_ICO = WIN_V3,
  31   };
  32 };
  33
  34 } // namespace bmp
  35 } // namespace image
  36 } // namespace mozilla
  37
  38 #endif // mozilla_image_BMPHeaders_h