1 /* 2 * Copyright 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <android/gui/CachingHint.h> 20 #include <gui/LayerMetadata.h> 21 #include "FrontEnd/LayerSnapshot.h" 22 #include "compositionengine/LayerFE.h" 23 #include "compositionengine/LayerFECompositionState.h" 24 #include "renderengine/LayerSettings.h" 25 #include "ui/LayerStack.h" 26 27 #include <ftl/future.h> 28 29 namespace android { 30 31 struct CompositionResult { 32 std::vector<std::pair<ftl::SharedFuture<FenceResult>, ui::LayerStack>> releaseFences; 33 sp<Fence> lastClientCompositionFence = nullptr; 34 }; 35 36 class LayerFE : public virtual RefBase, public virtual compositionengine::LayerFE { 37 public: 38 LayerFE(const std::string& name); 39 virtual ~LayerFE(); 40 41 // compositionengine::LayerFE overrides 42 const compositionengine::LayerFECompositionState* getCompositionState() const override; 43 bool onPreComposition(bool updatingOutputGeometryThisFrame) override; 44 void onLayerDisplayed(ftl::SharedFuture<FenceResult>, ui::LayerStack) override; 45 const char* getDebugName() const override; 46 int32_t getSequence() const override; 47 bool hasRoundedCorners() const override; 48 void setWasClientComposed(const sp<Fence>&) override; 49 const gui::LayerMetadata* getMetadata() const override; 50 const gui::LayerMetadata* getRelativeMetadata() const override; 51 std::optional<compositionengine::LayerFE::LayerSettings> prepareClientComposition( 52 compositionengine::LayerFE::ClientCompositionTargetSettings&) const; 53 CompositionResult&& stealCompositionResult(); 54 ftl::Future<FenceResult> createReleaseFenceFuture() override; 55 void setReleaseFence(const FenceResult& releaseFence) override; 56 LayerFE::ReleaseFencePromiseStatus getReleaseFencePromiseStatus() override; 57 58 std::unique_ptr<surfaceflinger::frontend::LayerSnapshot> mSnapshot; 59 60 private: 61 std::optional<compositionengine::LayerFE::LayerSettings> prepareClientCompositionInternal( 62 compositionengine::LayerFE::ClientCompositionTargetSettings&) const; 63 // Modifies the passed in layer settings to clear the contents. If the blackout flag is set, 64 // the settings clears the content with a solid black fill. 65 void prepareClearClientComposition(LayerFE::LayerSettings&, bool blackout) const; 66 void prepareShadowClientComposition(LayerFE::LayerSettings& caster, 67 const Rect& layerStackRect) const; 68 void prepareBufferStateClientComposition( 69 compositionengine::LayerFE::LayerSettings&, 70 compositionengine::LayerFE::ClientCompositionTargetSettings&) const; 71 void prepareEffectsClientComposition( 72 compositionengine::LayerFE::LayerSettings&, 73 compositionengine::LayerFE::ClientCompositionTargetSettings&) const; 74 hasEffect()75 bool hasEffect() const { return fillsColor() || drawShadows() || hasBlur(); } 76 bool hasBufferOrSidebandStream() const; 77 78 bool fillsColor() const; 79 bool hasBlur() const; 80 bool drawShadows() const; 81 82 const sp<GraphicBuffer> getBuffer() const; 83 84 CompositionResult mCompositionResult; 85 std::string mName; 86 std::promise<FenceResult> mReleaseFence; 87 ReleaseFencePromiseStatus mReleaseFencePromiseStatus = ReleaseFencePromiseStatus::UNINITIALIZED; 88 }; 89 90 } // namespace android 91