image/src/ICOFileHeaders.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
   6 #ifndef MOZILLA_IMAGELIB_ICOHEADERS_H_
   7 #define MOZILLA_IMAGELIB_ICOHEADERS_H_
   8
   9 namespace mozilla {
  10   namespace image {
  11
  12     #define ICONFILEHEADERSIZE 6
  13     #define ICODIRENTRYSIZE 16
  14     #define PNGSIGNATURESIZE 8
  15     #define BMPFILEHEADERSIZE 14
  16
  17     struct IconFileHeader
  18     {
  19       uint16_t   mReserved;
  20       uint16_t   mType;
  21       uint16_t   mCount;
  22     };
  23
  24     struct IconDirEntry
  25     {
  26       uint8_t   mWidth;
  27       uint8_t   mHeight;
  28       uint8_t   mColorCount;
  29       uint8_t   mReserved;
  30       union {
  31         uint16_t mPlanes;   // ICO
  32         uint16_t mXHotspot; // CUR
  33       };
  34       union {
  35         uint16_t mBitCount; // ICO
  36         uint16_t mYHotspot; // CUR
  37       };
  38       uint32_t  mBytesInRes;
  39       uint32_t  mImageOffset;
  40     };
  41
  42
  43   } // namespace image
  44 } // namespace mozilla
  45
  46 #endif