209 lines
8.1 KiB
C++
209 lines
8.1 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "BufferLayer.h"
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#include "Layer.h"
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#include <renderengine/Image.h>
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#include <renderengine/RenderEngine.h>
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#include <system/window.h>
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#include <utils/String8.h>
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#include <stack>
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namespace android {
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class SlotGenerationTest;
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class BufferStateLayer : public BufferLayer {
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public:
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explicit BufferStateLayer(const LayerCreationArgs&);
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~BufferStateLayer() override;
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// -----------------------------------------------------------------------
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// Interface implementation for Layer
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// -----------------------------------------------------------------------
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const char* getType() const override { return "BufferStateLayer"; }
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void onLayerDisplayed(const sp<Fence>& releaseFence) override;
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void releasePendingBuffer(nsecs_t dequeueReadyTime) override;
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void finalizeFrameEventHistory(const std::shared_ptr<FenceTime>& glDoneFence,
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const CompositorTiming& compositorTiming) override;
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bool shouldPresentNow(nsecs_t expectedPresentTime) const override;
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uint32_t doTransactionResize(uint32_t flags, Layer::State* /*stateToCommit*/) override {
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return flags;
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}
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/*TODO:vhau return to using BufferStateLayer override once WM
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* has removed deferred transactions!
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void pushPendingState() override;*/
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bool applyPendingStates(Layer::State* stateToCommit) override;
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uint32_t getActiveWidth(const Layer::State& s) const override { return s.active.w; }
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uint32_t getActiveHeight(const Layer::State& s) const override { return s.active.h; }
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ui::Transform getActiveTransform(const Layer::State& s) const override {
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return s.active.transform;
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}
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Region getActiveTransparentRegion(const Layer::State& s) const override {
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return s.transparentRegionHint;
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}
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Rect getCrop(const Layer::State& s) const;
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bool setTransform(uint32_t transform) override;
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bool setTransformToDisplayInverse(bool transformToDisplayInverse) override;
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bool setCrop(const Rect& crop) override;
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bool setFrame(const Rect& frame) override;
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bool setBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& acquireFence, nsecs_t postTime,
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nsecs_t desiredPresentTime, const client_cache_t& clientCacheId) override;
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bool setAcquireFence(const sp<Fence>& fence) override;
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bool setDataspace(ui::Dataspace dataspace) override;
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bool setHdrMetadata(const HdrMetadata& hdrMetadata) override;
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bool setSurfaceDamageRegion(const Region& surfaceDamage) override;
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bool setApi(int32_t api) override;
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bool setSidebandStream(const sp<NativeHandle>& sidebandStream) override;
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bool setTransactionCompletedListeners(const std::vector<sp<CallbackHandle>>& handles) override;
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void forceSendCallbacks() override;
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bool addFrameEvent(const sp<Fence>& acquireFence, nsecs_t postedTime,
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nsecs_t requestedPresentTime) override;
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// Override to ignore legacy layer state properties that are not used by BufferStateLayer
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bool setSize(uint32_t /*w*/, uint32_t /*h*/) override { return false; }
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bool setPosition(float /*x*/, float /*y*/) override { return false; }
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bool setTransparentRegionHint(const Region& transparent) override;
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bool setMatrix(const layer_state_t::matrix22_t& /*matrix*/,
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bool /*allowNonRectPreservingTransforms*/) override {
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return false;
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}
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bool setCrop_legacy(const Rect& /*crop*/) override { return false; }
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bool setOverrideScalingMode(int32_t /*overrideScalingMode*/) override { return false; }
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void deferTransactionUntil_legacy(const sp<IBinder>& /*barrierHandle*/,
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uint64_t /*frameNumber*/) override {}
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void deferTransactionUntil_legacy(const sp<Layer>& /*barrierLayer*/,
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uint64_t /*frameNumber*/) override {}
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Rect getBufferSize(const State& s) const override;
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FloatRect computeSourceBounds(const FloatRect& parentBounds) const override;
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Layer::RoundedCornerState getRoundedCornerState() const override;
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// -----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// Interface implementation for BufferLayer
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// -----------------------------------------------------------------------
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bool fenceHasSignaled() const override;
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bool framePresentTimeIsCurrent(nsecs_t expectedPresentTime) const override;
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bool onPreComposition(nsecs_t refreshStartTime) override;
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protected:
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void gatherBufferInfo() override;
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uint64_t getHeadFrameNumber(nsecs_t expectedPresentTime) const;
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private:
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bool updateFrameEventHistory(const sp<Fence>& acquireFence, nsecs_t postedTime,
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nsecs_t requestedPresentTime);
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uint64_t getFrameNumber(nsecs_t expectedPresentTime) const override;
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bool getAutoRefresh() const override;
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bool getSidebandStreamChanged() const override;
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bool latchSidebandStream(bool& recomputeVisibleRegions) override;
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bool hasFrameUpdate() const override;
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status_t bindTextureImage() override;
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status_t updateTexImage(bool& recomputeVisibleRegions, nsecs_t latchTime,
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nsecs_t expectedPresentTime) override;
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status_t updateActiveBuffer() override;
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status_t updateFrameNumber(nsecs_t latchTime) override;
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sp<Layer> createClone() override;
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// Crop that applies to the buffer
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Rect computeCrop(const State& s);
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private:
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friend class SlotGenerationTest;
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bool willPresentCurrentTransaction() const;
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static const std::array<float, 16> IDENTITY_MATRIX;
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std::unique_ptr<renderengine::Image> mTextureImage;
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std::atomic<bool> mSidebandStreamChanged{false};
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mutable uint64_t mFrameNumber{0};
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uint64_t mFrameCounter{0};
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sp<Fence> mPreviousReleaseFence;
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uint64_t mPreviousBufferId = 0;
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uint64_t mPreviousReleasedFrameNumber = 0;
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mutable bool mCurrentStateModified = false;
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bool mReleasePreviousBuffer = false;
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nsecs_t mCallbackHandleAcquireTime = -1;
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// TODO(marissaw): support sticky transform for LEGACY camera mode
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class HwcSlotGenerator : public ClientCache::ErasedRecipient {
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public:
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HwcSlotGenerator() {
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for (uint32_t i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) {
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mFreeHwcCacheSlots.push(i);
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}
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}
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void bufferErased(const client_cache_t& clientCacheId);
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uint32_t getHwcCacheSlot(const client_cache_t& clientCacheId);
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private:
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friend class SlotGenerationTest;
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uint32_t addCachedBuffer(const client_cache_t& clientCacheId) REQUIRES(mMutex);
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uint32_t getFreeHwcCacheSlot() REQUIRES(mMutex);
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void evictLeastRecentlyUsed() REQUIRES(mMutex);
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void eraseBufferLocked(const client_cache_t& clientCacheId) REQUIRES(mMutex);
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struct CachedBufferHash {
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std::size_t operator()(const client_cache_t& clientCacheId) const {
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return std::hash<uint64_t>{}(clientCacheId.id);
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}
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};
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std::mutex mMutex;
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std::unordered_map<client_cache_t,
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std::pair<uint32_t /*HwcCacheSlot*/, uint32_t /*counter*/>,
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CachedBufferHash>
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mCachedBuffers GUARDED_BY(mMutex);
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std::stack<uint32_t /*HwcCacheSlot*/> mFreeHwcCacheSlots GUARDED_BY(mMutex);
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// The cache increments this counter value when a slot is updated or used.
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// Used to track the least recently-used buffer
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uint64_t mCounter = 0;
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};
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sp<HwcSlotGenerator> mHwcSlotGenerator;
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};
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} // namespace android
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