| /* |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include <SkCamera.h> |
| #include <SkMatrix.h> |
| |
| #include <utils/LinearAllocator.h> |
| #include <utils/RefBase.h> |
| #include <utils/String8.h> |
| |
| #include <cutils/compiler.h> |
| |
| #include <androidfw/ResourceTypes.h> |
| |
| #include "AnimatorManager.h" |
| #include "Debug.h" |
| #include "DisplayList.h" |
| #include "Matrix.h" |
| #include "RenderProperties.h" |
| #include "pipeline/skia/SkiaDisplayList.h" |
| #include "pipeline/skia/SkiaLayer.h" |
| #include "utils/FatVector.h" |
| |
| #include <vector> |
| |
| class SkBitmap; |
| class SkPaint; |
| class SkPath; |
| class SkRegion; |
| class SkSurface; |
| |
| namespace android { |
| namespace uirenderer { |
| |
| class CanvasState; |
| class Rect; |
| class SkiaShader; |
| struct RenderNodeOp; |
| |
| class TreeInfo; |
| class TreeObserver; |
| |
| namespace proto { |
| class RenderNode; |
| } |
| |
| /** |
| * Primary class for storing recorded canvas commands, as well as per-View/ViewGroup display |
| * properties. |
| * |
| * Recording of canvas commands is somewhat similar to SkPicture, except the canvas-recording |
| * functionality is split between RecordingCanvas (which manages the recording), DisplayList |
| * (which holds the actual data), and RenderNode (which holds properties used for render playback). |
| * |
| * Note that DisplayList is swapped out from beneath an individual RenderNode when a view's |
| * recorded stream of canvas operations is refreshed. The RenderNode (and its properties) stay |
| * attached. |
| */ |
| class RenderNode : public VirtualLightRefBase { |
| friend class TestUtils; // allow TestUtils to access syncDisplayList / syncProperties |
| |
| public: |
| enum DirtyPropertyMask { |
| GENERIC = 1 << 1, |
| TRANSLATION_X = 1 << 2, |
| TRANSLATION_Y = 1 << 3, |
| TRANSLATION_Z = 1 << 4, |
| SCALE_X = 1 << 5, |
| SCALE_Y = 1 << 6, |
| ROTATION = 1 << 7, |
| ROTATION_X = 1 << 8, |
| ROTATION_Y = 1 << 9, |
| X = 1 << 10, |
| Y = 1 << 11, |
| Z = 1 << 12, |
| ALPHA = 1 << 13, |
| DISPLAY_LIST = 1 << 14, |
| }; |
| |
| ANDROID_API RenderNode(); |
| ANDROID_API virtual ~RenderNode(); |
| |
| // See flags defined in DisplayList.java |
| enum ReplayFlag { kReplayFlag_ClipChildren = 0x1 }; |
| |
| ANDROID_API void setStagingDisplayList(DisplayList* newData); |
| |
| ANDROID_API void output(); |
| ANDROID_API int getDebugSize(); |
| |
| bool isRenderable() const { return mDisplayList && !mDisplayList->isEmpty(); } |
| |
| bool hasProjectionReceiver() const { |
| return mDisplayList && mDisplayList->projectionReceiveIndex >= 0; |
| } |
| |
| const char* getName() const { return mName.string(); } |
| |
| void setName(const char* name) { |
| if (name) { |
| const char* lastPeriod = strrchr(name, '.'); |
| if (lastPeriod) { |
| mName.setTo(lastPeriod + 1); |
| } else { |
| mName.setTo(name); |
| } |
| } |
| } |
| |
| VirtualLightRefBase* getUserContext() const { return mUserContext.get(); } |
| |
| void setUserContext(VirtualLightRefBase* context) { mUserContext = context; } |
| |
| bool isPropertyFieldDirty(DirtyPropertyMask field) const { |
| return mDirtyPropertyFields & field; |
| } |
| |
| void setPropertyFieldsDirty(uint32_t fields) { mDirtyPropertyFields |= fields; } |
| |
| const RenderProperties& properties() const { return mProperties; } |
| |
| RenderProperties& animatorProperties() { return mProperties; } |
| |
| const RenderProperties& stagingProperties() { return mStagingProperties; } |
| |
| RenderProperties& mutateStagingProperties() { return mStagingProperties; } |
| |
| bool isValid() { return mValid; } |
| |
| int getWidth() const { return properties().getWidth(); } |
| |
| int getHeight() const { return properties().getHeight(); } |
| |
| ANDROID_API virtual void prepareTree(TreeInfo& info); |
| void destroyHardwareResources(TreeInfo* info = nullptr); |
| void destroyLayers(); |
| |
| // UI thread only! |
| ANDROID_API void addAnimator(const sp<BaseRenderNodeAnimator>& animator); |
| void removeAnimator(const sp<BaseRenderNodeAnimator>& animator); |
| |
| // This can only happen during pushStaging() |
| void onAnimatorTargetChanged(BaseRenderNodeAnimator* animator) { |
| mAnimatorManager.onAnimatorTargetChanged(animator); |
| } |
| |
| AnimatorManager& animators() { return mAnimatorManager; } |
| |
| void applyViewPropertyTransforms(mat4& matrix, bool true3dTransform = false) const; |
| |
| bool nothingToDraw() const { |
| const Outline& outline = properties().getOutline(); |
| return mDisplayList == nullptr || properties().getAlpha() <= 0 || |
| (outline.getShouldClip() && outline.isEmpty()) || properties().getScaleX() == 0 || |
| properties().getScaleY() == 0; |
| } |
| |
| const DisplayList* getDisplayList() const { return mDisplayList; } |
| |
| // Note: The position callbacks are relying on the listener using |
| // the frameNumber to appropriately batch/synchronize these transactions. |
| // There is no other filtering/batching to ensure that only the "final" |
| // state called once per frame. |
| class ANDROID_API PositionListener : public VirtualLightRefBase { |
| public: |
| virtual ~PositionListener() {} |
| // Called when the RenderNode's position changes |
| virtual void onPositionUpdated(RenderNode& node, const TreeInfo& info) = 0; |
| // Called when the RenderNode no longer has a position. As in, it's |
| // no longer being drawn. |
| // Note, tree info might be null |
| virtual void onPositionLost(RenderNode& node, const TreeInfo* info) = 0; |
| }; |
| |
| // Note this is not thread safe, this needs to be called |
| // before the RenderNode is used for drawing. |
| // RenderNode takes ownership of the pointer |
| ANDROID_API void setPositionListener(PositionListener* listener) { |
| mPositionListener = listener; |
| } |
| |
| // This is only modified in MODE_FULL, so it can be safely accessed |
| // on the UI thread. |
| ANDROID_API bool hasParents() { return mParentCount; } |
| |
| void onRemovedFromTree(TreeInfo* info); |
| |
| // Called by CanvasContext to promote a RenderNode to be a root node |
| void makeRoot() { incParentRefCount(); } |
| |
| // Called by CanvasContext when it drops a RenderNode from being a root node |
| void clearRoot(); |
| |
| void output(std::ostream& output, uint32_t level); |
| |
| private: |
| void computeOrderingImpl(RenderNodeOp* opState, |
| std::vector<RenderNodeOp*>* compositedChildrenOfProjectionSurface, |
| const mat4* transformFromProjectionSurface); |
| |
| void syncProperties(); |
| void syncDisplayList(TreeObserver& observer, TreeInfo* info); |
| |
| void prepareTreeImpl(TreeObserver& observer, TreeInfo& info, bool functorsNeedLayer); |
| void pushStagingPropertiesChanges(TreeInfo& info); |
| void pushStagingDisplayListChanges(TreeObserver& observer, TreeInfo& info); |
| void prepareLayer(TreeInfo& info, uint32_t dirtyMask); |
| void pushLayerUpdate(TreeInfo& info); |
| void deleteDisplayList(TreeObserver& observer, TreeInfo* info = nullptr); |
| void damageSelf(TreeInfo& info); |
| |
| void incParentRefCount() { mParentCount++; } |
| void decParentRefCount(TreeObserver& observer, TreeInfo* info = nullptr); |
| |
| String8 mName; |
| sp<VirtualLightRefBase> mUserContext; |
| |
| uint32_t mDirtyPropertyFields; |
| RenderProperties mProperties; |
| RenderProperties mStagingProperties; |
| |
| // Owned by UI. Set when DL is set, cleared when DL cleared or when node detached |
| // (likely by parent re-record/removal) |
| bool mValid = false; |
| |
| bool mNeedsDisplayListSync; |
| // WARNING: Do not delete this directly, you must go through deleteDisplayList()! |
| DisplayList* mDisplayList; |
| DisplayList* mStagingDisplayList; |
| |
| friend class AnimatorManager; |
| AnimatorManager mAnimatorManager; |
| |
| /** |
| * Draw time state - these properties are only set and used during rendering |
| */ |
| |
| // for projection surfaces, contains a list of all children items |
| std::vector<RenderNodeOp*> mProjectedNodes; |
| |
| // How many references our parent(s) have to us. Typically this should alternate |
| // between 2 and 1 (when a staging push happens we inc first then dec) |
| // When this hits 0 we are no longer in the tree, so any hardware resources |
| // (specifically Layers) should be released. |
| // This is *NOT* thread-safe, and should therefore only be tracking |
| // mDisplayList, not mStagingDisplayList. |
| uint32_t mParentCount; |
| |
| sp<PositionListener> mPositionListener; |
| |
| // METHODS & FIELDS ONLY USED BY THE SKIA RENDERER |
| public: |
| /** |
| * Detach and transfer ownership of an already allocated displayList for use |
| * in recording updated content for this renderNode |
| */ |
| std::unique_ptr<skiapipeline::SkiaDisplayList> detachAvailableList() { |
| return std::move(mAvailableDisplayList); |
| } |
| |
| /** |
| * Attach unused displayList to this node for potential future reuse. |
| */ |
| void attachAvailableList(skiapipeline::SkiaDisplayList* skiaDisplayList) { |
| mAvailableDisplayList.reset(skiaDisplayList); |
| } |
| |
| /** |
| * Returns true if an offscreen layer from any renderPipeline is attached |
| * to this node. |
| */ |
| bool hasLayer() const { return mSkiaLayer.get(); } |
| |
| /** |
| * Used by the RenderPipeline to attach an offscreen surface to the RenderNode. |
| * The surface is then will be used to store the contents of a layer. |
| */ |
| void setLayerSurface(sk_sp<SkSurface> layer) { |
| if (layer.get()) { |
| if (!mSkiaLayer.get()) { |
| mSkiaLayer = std::make_unique<skiapipeline::SkiaLayer>(); |
| } |
| mSkiaLayer->layerSurface = std::move(layer); |
| mSkiaLayer->inverseTransformInWindow.loadIdentity(); |
| } else { |
| mSkiaLayer.reset(); |
| } |
| } |
| |
| /** |
| * If the RenderNode is of type LayerType::RenderLayer then this method will |
| * return the an offscreen rendering surface that is used to both render into |
| * the layer and composite the layer into its parent. If the type is not |
| * LayerType::RenderLayer then it will return a nullptr. |
| * |
| * NOTE: this function is only guaranteed to return accurate results after |
| * prepareTree has been run for this RenderNode |
| */ |
| SkSurface* getLayerSurface() const { |
| return mSkiaLayer.get() ? mSkiaLayer->layerSurface.get() : nullptr; |
| } |
| |
| skiapipeline::SkiaLayer* getSkiaLayer() const { return mSkiaLayer.get(); } |
| |
| /** |
| * Returns the path that represents the outline of RenderNode intersected with |
| * the provided rect. This call will internally cache the resulting path in |
| * order to potentially return that path for subsequent calls to this method. |
| * By reusing the same path we get better performance on the GPU backends since |
| * those resources are cached in the hardware based on the path's genID. |
| * |
| * The returned path is only guaranteed to be valid until this function is called |
| * again or the RenderNode's outline is mutated. |
| */ |
| const SkPath* getClippedOutline(const SkRect& clipRect) const; |
| |
| private: |
| /** |
| * If this RenderNode has been used in a previous frame then the SkiaDisplayList |
| * from that frame is cached here until one of the following conditions is met: |
| * 1) The RenderNode is deleted (causing this to be deleted) |
| * 2) It is replaced with the displayList from the next completed frame |
| * 3) It is detached and used to to record a new displayList for a later frame |
| */ |
| std::unique_ptr<skiapipeline::SkiaDisplayList> mAvailableDisplayList; |
| |
| /** |
| * An offscreen rendering target used to contain the contents this RenderNode |
| * when it has been set to draw as a LayerType::RenderLayer. |
| */ |
| std::unique_ptr<skiapipeline::SkiaLayer> mSkiaLayer; |
| |
| struct ClippedOutlineCache { |
| // keys |
| uint32_t outlineID = 0; |
| SkRect clipRect; |
| |
| // value |
| SkPath clippedOutline; |
| }; |
| mutable ClippedOutlineCache mClippedOutlineCache; |
| }; // class RenderNode |
| |
| class MarkAndSweepRemoved : public TreeObserver { |
| PREVENT_COPY_AND_ASSIGN(MarkAndSweepRemoved); |
| |
| public: |
| explicit MarkAndSweepRemoved(TreeInfo* info) : mTreeInfo(info) {} |
| |
| void onMaybeRemovedFromTree(RenderNode* node) override { mMarked.emplace_back(node); } |
| |
| ~MarkAndSweepRemoved() { |
| for (auto& node : mMarked) { |
| if (!node->hasParents()) { |
| node->onRemovedFromTree(mTreeInfo); |
| } |
| } |
| } |
| |
| private: |
| FatVector<sp<RenderNode>, 10> mMarked; |
| TreeInfo* mTreeInfo; |
| }; |
| |
| } /* namespace uirenderer */ |
| } /* namespace android */ |