| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #ifndef TREEINFO_H |
| #define TREEINFO_H |
| |
| #include <string> |
| |
| #include <utils/Timers.h> |
| |
| #include "DamageAccumulator.h" |
| #include "utils/Macros.h" |
| |
| namespace android { |
| namespace uirenderer { |
| |
| class BaseRenderNodeAnimator; |
| class AnimationListener; |
| class OpenGLRenderer; |
| class RenderState; |
| |
| class AnimationHook { |
| public: |
| virtual void callOnFinished(BaseRenderNodeAnimator* animator, AnimationListener* listener) = 0; |
| protected: |
| ~AnimationHook() {} |
| }; |
| |
| class ErrorHandler { |
| public: |
| virtual void onError(const std::string& message) = 0; |
| protected: |
| ~ErrorHandler() {} |
| }; |
| |
| // This would be a struct, but we want to PREVENT_COPY_AND_ASSIGN |
| class TreeInfo { |
| PREVENT_COPY_AND_ASSIGN(TreeInfo); |
| public: |
| enum TraversalMode { |
| // The full monty - sync, push, run animators, etc... Used by DrawFrameTask |
| // May only be used if both the UI thread and RT thread are blocked on the |
| // prepare |
| MODE_FULL, |
| // Run only what can be done safely on RT thread. Currently this only means |
| // animators, but potentially things like SurfaceTexture updates |
| // could be handled by this as well if there are no listeners |
| MODE_RT_ONLY, |
| // The subtree is being detached. Maybe. If the RenderNode is present |
| // in both the old and new display list's children then it will get a |
| // MODE_MAYBE_DETACHING followed shortly by a MODE_FULL. |
| // Push any pending display list changes in case it is detached, |
| // but don't evaluate animators and such as if it isn't detached as a |
| // MODE_FULL will follow shortly. |
| MODE_MAYBE_DETACHING, |
| // TODO: TRIM_MEMORY? |
| }; |
| |
| explicit TreeInfo(TraversalMode mode, RenderState& renderState) |
| : mode(mode) |
| , frameTimeMs(0) |
| , animationHook(NULL) |
| , prepareTextures(mode == MODE_FULL) |
| , damageAccumulator(NullDamageAccumulator::instance()) |
| , renderState(renderState) |
| , renderer(NULL) |
| , errorHandler(NULL) |
| {} |
| |
| const TraversalMode mode; |
| nsecs_t frameTimeMs; |
| AnimationHook* animationHook; |
| // TODO: Remove this? Currently this is used to signal to stop preparing |
| // textures if we run out of cache space. |
| bool prepareTextures; |
| // Must not be null |
| IDamageAccumulator* damageAccumulator; |
| RenderState& renderState; |
| // The renderer that will be drawing the next frame. Use this to push any |
| // layer updates or similar. May be NULL. |
| OpenGLRenderer* renderer; |
| ErrorHandler* errorHandler; |
| |
| struct Out { |
| Out() |
| : hasFunctors(false) |
| , hasAnimations(false) |
| , requiresUiRedraw(false) |
| , canDrawThisFrame(true) |
| {} |
| bool hasFunctors; |
| // This is only updated if evaluateAnimations is true |
| bool hasAnimations; |
| // This is set to true if there is an animation that RenderThread cannot |
| // animate itself, such as if hasFunctors is true |
| // This is only set if hasAnimations is true |
| bool requiresUiRedraw; |
| // This is set to true if draw() can be called this frame |
| // false means that we must delay until the next vsync pulse as frame |
| // production is outrunning consumption |
| // NOTE that if this is false CanvasContext will set either requiresUiRedraw |
| // *OR* will post itself for the next vsync automatically, use this |
| // only to avoid calling draw() |
| bool canDrawThisFrame; |
| } out; |
| |
| // TODO: Damage calculations |
| }; |
| |
| } /* namespace uirenderer */ |
| } /* namespace android */ |
| |
| #endif /* TREEINFO_H */ |