From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- image/PlaybackType.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 image/PlaybackType.h (limited to 'image/PlaybackType.h') diff --git a/image/PlaybackType.h b/image/PlaybackType.h new file mode 100644 index 0000000000..ff820ca680 --- /dev/null +++ b/image/PlaybackType.h @@ -0,0 +1,40 @@ +/* -*- 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_PlaybackType_h +#define mozilla_image_PlaybackType_h + +#include "imgIContainer.h" + +namespace mozilla { +namespace image { + +/** + * PlaybackType identifies a surface cache entry as either a static surface or + * an animation. Note that a specific cache entry is one or the other, but + * images may be associated with both types of cache entries, since in some + * circumstances we may want to treat an animated image as if it were static. + */ +enum class PlaybackType : uint8_t { + eStatic, // Calls to DrawableRef() will always return the same surface. + eAnimated // An animation; calls to DrawableRef() may return different + // surfaces at different times. +}; + +/** + * Given an imgIContainer FRAME_* value, returns the corresponding PlaybackType + * for use in surface cache lookups. + */ +inline PlaybackType ToPlaybackType(uint32_t aWhichFrame) { + MOZ_ASSERT(aWhichFrame == imgIContainer::FRAME_FIRST || + aWhichFrame == imgIContainer::FRAME_CURRENT); + return aWhichFrame == imgIContainer::FRAME_CURRENT ? PlaybackType::eAnimated + : PlaybackType::eStatic; +} + +} // namespace image +} // namespace mozilla + +#endif // mozilla_image_PlaybackType_h -- cgit v1.2.3