mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-27 06:43:32 +00:00
ef5aaf44a9
This prevents a crash that would occur if a redecode of an animated AVIF happened after changing the `sequences.enabled` pref from `true` to `false`. Differential Revision: https://phabricator.services.mozilla.com/D170190
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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_DecoderFlags_h
|
|
#define mozilla_image_DecoderFlags_h
|
|
|
|
#include "mozilla/TypedEnumBits.h"
|
|
|
|
namespace mozilla {
|
|
namespace image {
|
|
|
|
/**
|
|
* Flags that influence decoder behavior. Note that these flags *don't*
|
|
* influence the logical content of the surfaces that the decoder generates, so
|
|
* they're not in a factor in SurfaceCache lookups and the like. These flags
|
|
* instead either influence which surfaces are generated at all or the tune the
|
|
* decoder's behavior for a particular scenario.
|
|
*/
|
|
enum class DecoderFlags : uint8_t {
|
|
FIRST_FRAME_ONLY = 1 << 0,
|
|
IS_REDECODE = 1 << 1,
|
|
IMAGE_IS_TRANSIENT = 1 << 2,
|
|
ASYNC_NOTIFY = 1 << 3,
|
|
|
|
/**
|
|
* By default, a surface is considered substitutable. That means callers are
|
|
* willing to accept a less than ideal match to display. If a caller requires
|
|
* a specific size and won't accept alternatives, then this flag should be
|
|
* set.
|
|
*/
|
|
CANNOT_SUBSTITUTE = 1 << 4,
|
|
|
|
#ifdef MOZ_AV1
|
|
// The flags below are stored in RasterImage to allow a decoded image to
|
|
// remain consistent in whether it is animated or not.
|
|
|
|
// Set according to the "image.avif.sequence.enabled" preference.
|
|
AVIF_SEQUENCES_ENABLED = 1 << 5,
|
|
// Set according to the
|
|
// "image.avif.sequence.animate_avif_major_branded_images" preference.
|
|
AVIF_ANIMATE_AVIF_MAJOR = 1 << 6,
|
|
#endif
|
|
};
|
|
MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(DecoderFlags)
|
|
|
|
/**
|
|
* @return the default set of decode flags.
|
|
*/
|
|
inline DecoderFlags DefaultDecoderFlags() { return DecoderFlags(); }
|
|
|
|
} // namespace image
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_image_DecoderFlags_h
|