Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #ifndef mozilla_image_DecoderFlags_h
       7             : #define mozilla_image_DecoderFlags_h
       8             : 
       9             : #include "mozilla/TypedEnumBits.h"
      10             : 
      11             : namespace mozilla {
      12             : namespace image {
      13             : 
      14             : /**
      15             :  * Flags that influence decoder behavior. Note that these flags *don't*
      16             :  * influence the logical content of the surfaces that the decoder generates, so
      17             :  * they're not in a factor in SurfaceCache lookups and the like. These flags
      18             :  * instead either influence which surfaces are generated at all or the tune the
      19             :  * decoder's behavior for a particular scenario.
      20             :  */
      21             : enum class DecoderFlags : uint8_t
      22             : {
      23             :   FIRST_FRAME_ONLY               = 1 << 0,
      24             :   IS_REDECODE                    = 1 << 1,
      25             :   IMAGE_IS_TRANSIENT             = 1 << 2,
      26             :   ASYNC_NOTIFY                   = 1 << 3
      27             : };
      28        3398 : MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(DecoderFlags)
      29             : 
      30             : /**
      31             :  * @return the default set of decode flags.
      32             :  */
      33             : inline DecoderFlags
      34         113 : DefaultDecoderFlags()
      35             : {
      36         113 :   return DecoderFlags();
      37             : }
      38             : 
      39             : } // namespace image
      40             : } // namespace mozilla
      41             : 
      42             : #endif // mozilla_image_DecoderFlags_h