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author | vollick <vollick@chromium.org> | 2016-01-07 20:36:38 -0800 |
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committer | Commit bot <commit-bot@chromium.org> | 2016-01-08 04:37:46 +0000 |
commit | 9c7f6d0e46a46605801d143c04b86f5e4445cd37 (patch) | |
tree | 964f50059ee17492e4111901ed1e55de3c143bd4 /cc/animation | |
parent | 8b876b75f69ae160847db39840784b3805c504a9 (diff) | |
download | chromium_src-9c7f6d0e46a46605801d143c04b86f5e4445cd37.zip chromium_src-9c7f6d0e46a46605801d143c04b86f5e4445cd37.tar.gz chromium_src-9c7f6d0e46a46605801d143c04b86f5e4445cd37.tar.bz2 |
compositor-worker: Introduce WebCompositorMutableState
This change introduces a wrapper around compositer-owned state that may
be mutated by a compositor worker.
This depends on crrev.com/1405993008
BUG=430155
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1447893002
Cr-Commit-Position: refs/heads/master@{#368273}
Diffstat (limited to 'cc/animation')
-rw-r--r-- | cc/animation/layer_tree_mutation.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/cc/animation/layer_tree_mutation.h b/cc/animation/layer_tree_mutation.h new file mode 100644 index 0000000..0fdd592 --- /dev/null +++ b/cc/animation/layer_tree_mutation.h @@ -0,0 +1,63 @@ +// Copyright 2015 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef CC_ANIMATION_LAYER_TREE_MUTATION_H_ +#define CC_ANIMATION_LAYER_TREE_MUTATION_H_ + +#include "base/containers/hash_tables.h" +#include "cc/animation/mutable_properties.h" +#include "third_party/skia/include/utils/SkMatrix44.h" + +namespace cc { + +class LayerTreeMutation { + public: + void SetOpacity(float opacity) { + mutated_flags_ |= kMutablePropertyOpacity; + opacity_ = opacity; + } + void SetScrollLeft(float scroll_left) { + mutated_flags_ |= kMutablePropertyScrollLeft; + scroll_left_ = scroll_left; + } + void SetScrollTop(float scroll_top) { + mutated_flags_ |= kMutablePropertyScrollTop; + scroll_top_ = scroll_top; + } + void SetTransform(const SkMatrix44& transform) { + mutated_flags_ |= kMutablePropertyTransform; + transform_ = transform; + } + + bool is_opacity_mutated() const { + return !!(mutated_flags_ & kMutablePropertyOpacity); + } + bool is_scroll_left_mutated() const { + return !!(mutated_flags_ & kMutablePropertyScrollLeft); + } + bool is_scroll_top_mutated() const { + return !!(mutated_flags_ & kMutablePropertyScrollTop); + } + bool is_transform_mutated() const { + return !!(mutated_flags_ & kMutablePropertyTransform); + } + + float opacity() const { return opacity_; } + float scroll_left() const { return scroll_left_; } + float scroll_top() const { return scroll_top_; } + SkMatrix44 transform() const { return transform_; } + + private: + uint32_t mutated_flags_ = 0; + float opacity_ = 0; + float scroll_left_ = 0; + float scroll_top_ = 0; + SkMatrix44 transform_; +}; + +typedef base::hash_map<uint64_t, LayerTreeMutation> LayerTreeMutationMap; + +} // namespace cc + +#endif // CC_ANIMATION_LAYER_TREE_MUTATION_H_ |