| /* | 
 |  * Copyright 2016 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 ANDROID_SF_COMPOSER_HAL_H | 
 | #define ANDROID_SF_COMPOSER_HAL_H | 
 |  | 
 | #include <memory> | 
 | #include <string> | 
 | #include <unordered_map> | 
 | #include <utility> | 
 | #include <vector> | 
 |  | 
 | // TODO(b/129481165): remove the #pragma below and fix conversion issues | 
 | #pragma clang diagnostic push | 
 | #pragma clang diagnostic ignored "-Wconversion" | 
 |  | 
 | #include <android/hardware/graphics/common/1.1/types.h> | 
 | #include <android/hardware/graphics/composer/2.4/IComposer.h> | 
 | #include <android/hardware/graphics/composer/2.4/IComposerClient.h> | 
 | #include <composer-command-buffer/2.4/ComposerCommandBuffer.h> | 
 | #include <gui/HdrMetadata.h> | 
 | #include <math/mat4.h> | 
 | #include <ui/DisplayedFrameStats.h> | 
 | #include <ui/GraphicBuffer.h> | 
 | #include <utils/StrongPointer.h> | 
 |  | 
 | // TODO(b/129481165): remove the #pragma below and fix conversion issues | 
 | #pragma clang diagnostic pop // ignored "-Wconversion" | 
 |  | 
 | namespace android { | 
 |  | 
 | namespace Hwc2 { | 
 |  | 
 | namespace types = hardware::graphics::common; | 
 |  | 
 | namespace V2_1 = hardware::graphics::composer::V2_1; | 
 | namespace V2_2 = hardware::graphics::composer::V2_2; | 
 | namespace V2_3 = hardware::graphics::composer::V2_3; | 
 | namespace V2_4 = hardware::graphics::composer::V2_4; | 
 |  | 
 | using types::V1_0::ColorTransform; | 
 | using types::V1_0::Transform; | 
 | using types::V1_1::RenderIntent; | 
 | using types::V1_2::ColorMode; | 
 | using types::V1_2::Dataspace; | 
 | using types::V1_2::Hdr; | 
 | using types::V1_2::PixelFormat; | 
 |  | 
 | using V2_1::Config; | 
 | using V2_1::Display; | 
 | using V2_1::Error; | 
 | using V2_1::Layer; | 
 | using V2_4::CommandReaderBase; | 
 | using V2_4::CommandWriterBase; | 
 | using V2_4::IComposer; | 
 | using V2_4::IComposerCallback; | 
 | using V2_4::IComposerClient; | 
 | using V2_4::VsyncPeriodChangeTimeline; | 
 | using V2_4::VsyncPeriodNanos; | 
 | using DisplayCapability = IComposerClient::DisplayCapability; | 
 | using PerFrameMetadata = IComposerClient::PerFrameMetadata; | 
 | using PerFrameMetadataKey = IComposerClient::PerFrameMetadataKey; | 
 | using PerFrameMetadataBlob = IComposerClient::PerFrameMetadataBlob; | 
 |  | 
 | class Composer { | 
 | public: | 
 |     virtual ~Composer() = 0; | 
 |  | 
 |     virtual std::vector<IComposer::Capability> getCapabilities() = 0; | 
 |     virtual std::string dumpDebugInfo() = 0; | 
 |  | 
 |     virtual void registerCallback(const sp<IComposerCallback>& callback) = 0; | 
 |  | 
 |     // Reset all pending commands in the command buffer. Useful if you want to | 
 |     // skip a frame but have already queued some commands. | 
 |     virtual void resetCommands() = 0; | 
 |  | 
 |     // Explicitly flush all pending commands in the command buffer. | 
 |     virtual Error executeCommands() = 0; | 
 |  | 
 |     virtual uint32_t getMaxVirtualDisplayCount() = 0; | 
 |     virtual Error createVirtualDisplay(uint32_t width, uint32_t height, PixelFormat* format, | 
 |                                        Display* outDisplay) = 0; | 
 |     virtual Error destroyVirtualDisplay(Display display) = 0; | 
 |  | 
 |     virtual Error acceptDisplayChanges(Display display) = 0; | 
 |  | 
 |     virtual Error createLayer(Display display, Layer* outLayer) = 0; | 
 |     virtual Error destroyLayer(Display display, Layer layer) = 0; | 
 |  | 
 |     virtual Error getActiveConfig(Display display, Config* outConfig) = 0; | 
 |     virtual Error getChangedCompositionTypes( | 
 |             Display display, std::vector<Layer>* outLayers, | 
 |             std::vector<IComposerClient::Composition>* outTypes) = 0; | 
 |     virtual Error getColorModes(Display display, std::vector<ColorMode>* outModes) = 0; | 
 |     virtual Error getDisplayAttribute(Display display, Config config, | 
 |                                       IComposerClient::Attribute attribute, int32_t* outValue) = 0; | 
 |     virtual Error getDisplayConfigs(Display display, std::vector<Config>* outConfigs) = 0; | 
 |     virtual Error getDisplayName(Display display, std::string* outName) = 0; | 
 |  | 
 |     virtual Error getDisplayRequests(Display display, uint32_t* outDisplayRequestMask, | 
 |                                      std::vector<Layer>* outLayers, | 
 |                                      std::vector<uint32_t>* outLayerRequestMasks) = 0; | 
 |  | 
 |     virtual Error getDozeSupport(Display display, bool* outSupport) = 0; | 
 |     virtual Error getHdrCapabilities(Display display, std::vector<Hdr>* outTypes, | 
 |                                      float* outMaxLuminance, float* outMaxAverageLuminance, | 
 |                                      float* outMinLuminance) = 0; | 
 |  | 
 |     virtual Error getReleaseFences(Display display, std::vector<Layer>* outLayers, | 
 |                                    std::vector<int>* outReleaseFences) = 0; | 
 |  | 
 |     virtual Error presentDisplay(Display display, int* outPresentFence) = 0; | 
 |  | 
 |     virtual Error setActiveConfig(Display display, Config config) = 0; | 
 |  | 
 |     /* | 
 |      * The composer caches client targets internally.  When target is nullptr, | 
 |      * the composer uses slot to look up the client target from its cache. | 
 |      * When target is not nullptr, the cache is updated with the new target. | 
 |      */ | 
 |     virtual Error setClientTarget(Display display, uint32_t slot, const sp<GraphicBuffer>& target, | 
 |                                   int acquireFence, Dataspace dataspace, | 
 |                                   const std::vector<IComposerClient::Rect>& damage) = 0; | 
 |     virtual Error setColorMode(Display display, ColorMode mode, RenderIntent renderIntent) = 0; | 
 |     virtual Error setColorTransform(Display display, const float* matrix, ColorTransform hint) = 0; | 
 |     virtual Error setOutputBuffer(Display display, const native_handle_t* buffer, | 
 |                                   int releaseFence) = 0; | 
 |     virtual Error setPowerMode(Display display, IComposerClient::PowerMode mode) = 0; | 
 |     virtual Error setVsyncEnabled(Display display, IComposerClient::Vsync enabled) = 0; | 
 |  | 
 |     virtual Error setClientTargetSlotCount(Display display) = 0; | 
 |  | 
 |     virtual Error validateDisplay(Display display, uint32_t* outNumTypes, | 
 |                                   uint32_t* outNumRequests) = 0; | 
 |  | 
 |     virtual Error presentOrValidateDisplay(Display display, uint32_t* outNumTypes, | 
 |                                            uint32_t* outNumRequests, int* outPresentFence, | 
 |                                            uint32_t* state) = 0; | 
 |  | 
 |     virtual Error setCursorPosition(Display display, Layer layer, int32_t x, int32_t y) = 0; | 
 |     /* see setClientTarget for the purpose of slot */ | 
 |     virtual Error setLayerBuffer(Display display, Layer layer, uint32_t slot, | 
 |                                  const sp<GraphicBuffer>& buffer, int acquireFence) = 0; | 
 |     virtual Error setLayerSurfaceDamage(Display display, Layer layer, | 
 |                                         const std::vector<IComposerClient::Rect>& damage) = 0; | 
 |     virtual Error setLayerBlendMode(Display display, Layer layer, | 
 |                                     IComposerClient::BlendMode mode) = 0; | 
 |     virtual Error setLayerColor(Display display, Layer layer, | 
 |                                 const IComposerClient::Color& color) = 0; | 
 |     virtual Error setLayerCompositionType(Display display, Layer layer, | 
 |                                           IComposerClient::Composition type) = 0; | 
 |     virtual Error setLayerDataspace(Display display, Layer layer, Dataspace dataspace) = 0; | 
 |     virtual Error setLayerDisplayFrame(Display display, Layer layer, | 
 |                                        const IComposerClient::Rect& frame) = 0; | 
 |     virtual Error setLayerPlaneAlpha(Display display, Layer layer, float alpha) = 0; | 
 |     virtual Error setLayerSidebandStream(Display display, Layer layer, | 
 |                                          const native_handle_t* stream) = 0; | 
 |     virtual Error setLayerSourceCrop(Display display, Layer layer, | 
 |                                      const IComposerClient::FRect& crop) = 0; | 
 |     virtual Error setLayerTransform(Display display, Layer layer, Transform transform) = 0; | 
 |     virtual Error setLayerVisibleRegion(Display display, Layer layer, | 
 |                                         const std::vector<IComposerClient::Rect>& visible) = 0; | 
 |     virtual Error setLayerZOrder(Display display, Layer layer, uint32_t z) = 0; | 
 |  | 
 |     // Composer HAL 2.2 | 
 |     virtual Error setLayerPerFrameMetadata( | 
 |             Display display, Layer layer, | 
 |             const std::vector<IComposerClient::PerFrameMetadata>& perFrameMetadatas) = 0; | 
 |     virtual std::vector<IComposerClient::PerFrameMetadataKey> getPerFrameMetadataKeys( | 
 |             Display display) = 0; | 
 |     virtual Error getRenderIntents(Display display, ColorMode colorMode, | 
 |             std::vector<RenderIntent>* outRenderIntents) = 0; | 
 |     virtual Error getDataspaceSaturationMatrix(Dataspace dataspace, mat4* outMatrix) = 0; | 
 |  | 
 |     // Composer HAL 2.3 | 
 |     virtual Error getDisplayIdentificationData(Display display, uint8_t* outPort, | 
 |                                                std::vector<uint8_t>* outData) = 0; | 
 |     virtual Error setLayerColorTransform(Display display, Layer layer, | 
 |                                          const float* matrix) = 0; | 
 |     virtual Error getDisplayedContentSamplingAttributes(Display display, PixelFormat* outFormat, | 
 |                                                         Dataspace* outDataspace, | 
 |                                                         uint8_t* outComponentMask) = 0; | 
 |     virtual Error setDisplayContentSamplingEnabled(Display display, bool enabled, | 
 |                                                    uint8_t componentMask, uint64_t maxFrames) = 0; | 
 |     virtual Error getDisplayedContentSample(Display display, uint64_t maxFrames, uint64_t timestamp, | 
 |                                             DisplayedFrameStats* outStats) = 0; | 
 |     virtual Error setLayerPerFrameMetadataBlobs( | 
 |             Display display, Layer layer, const std::vector<PerFrameMetadataBlob>& metadata) = 0; | 
 |     virtual Error setDisplayBrightness(Display display, float brightness) = 0; | 
 |  | 
 |     // Composer HAL 2.4 | 
 |     virtual bool isVsyncPeriodSwitchSupported() = 0; | 
 |     virtual Error getDisplayCapabilities(Display display, | 
 |                                          std::vector<DisplayCapability>* outCapabilities) = 0; | 
 |     virtual V2_4::Error getDisplayConnectionType( | 
 |             Display display, IComposerClient::DisplayConnectionType* outType) = 0; | 
 |     virtual V2_4::Error getDisplayVsyncPeriod(Display display, | 
 |                                               VsyncPeriodNanos* outVsyncPeriod) = 0; | 
 |     virtual V2_4::Error setActiveConfigWithConstraints( | 
 |             Display display, Config config, | 
 |             const IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints, | 
 |             VsyncPeriodChangeTimeline* outTimeline) = 0; | 
 |  | 
 |     virtual V2_4::Error setAutoLowLatencyMode(Display displayId, bool on) = 0; | 
 |     virtual V2_4::Error getSupportedContentTypes( | 
 |             Display displayId, | 
 |             std::vector<IComposerClient::ContentType>* outSupportedContentTypes) = 0; | 
 |     virtual V2_4::Error setContentType(Display displayId, | 
 |                                        IComposerClient::ContentType contentType) = 0; | 
 |     virtual V2_4::Error setLayerGenericMetadata(Display display, Layer layer, | 
 |                                                 const std::string& key, bool mandatory, | 
 |                                                 const std::vector<uint8_t>& value) = 0; | 
 |     virtual V2_4::Error getLayerGenericMetadataKeys( | 
 |             std::vector<IComposerClient::LayerGenericMetadataKey>* outKeys) = 0; | 
 |     virtual Error getClientTargetProperty( | 
 |             Display display, IComposerClient::ClientTargetProperty* outClientTargetProperty) = 0; | 
 | }; | 
 |  | 
 | namespace impl { | 
 |  | 
 | class CommandReader : public CommandReaderBase { | 
 | public: | 
 |     ~CommandReader(); | 
 |  | 
 |     // Parse and execute commands from the command queue.  The commands are | 
 |     // actually return values from the server and will be saved in ReturnData. | 
 |     Error parse(); | 
 |  | 
 |     // Get and clear saved errors. | 
 |     struct CommandError { | 
 |         uint32_t location; | 
 |         Error error; | 
 |     }; | 
 |     std::vector<CommandError> takeErrors(); | 
 |  | 
 |     bool hasChanges(Display display, uint32_t* outNumChangedCompositionTypes, | 
 |             uint32_t* outNumLayerRequestMasks) const; | 
 |  | 
 |     // Get and clear saved changed composition types. | 
 |     void takeChangedCompositionTypes(Display display, | 
 |             std::vector<Layer>* outLayers, | 
 |             std::vector<IComposerClient::Composition>* outTypes); | 
 |  | 
 |     // Get and clear saved display requests. | 
 |     void takeDisplayRequests(Display display, | 
 |         uint32_t* outDisplayRequestMask, std::vector<Layer>* outLayers, | 
 |         std::vector<uint32_t>* outLayerRequestMasks); | 
 |  | 
 |     // Get and clear saved release fences. | 
 |     void takeReleaseFences(Display display, std::vector<Layer>* outLayers, | 
 |             std::vector<int>* outReleaseFences); | 
 |  | 
 |     // Get and clear saved present fence. | 
 |     void takePresentFence(Display display, int* outPresentFence); | 
 |  | 
 |     // Get what stage succeeded during PresentOrValidate: Present or Validate | 
 |     void takePresentOrValidateStage(Display display, uint32_t * state); | 
 |  | 
 |     // Get the client target properties requested by hardware composer. | 
 |     void takeClientTargetProperty(Display display, | 
 |                                   IComposerClient::ClientTargetProperty* outClientTargetProperty); | 
 |  | 
 | private: | 
 |     void resetData(); | 
 |  | 
 |     bool parseSelectDisplay(uint16_t length); | 
 |     bool parseSetError(uint16_t length); | 
 |     bool parseSetChangedCompositionTypes(uint16_t length); | 
 |     bool parseSetDisplayRequests(uint16_t length); | 
 |     bool parseSetPresentFence(uint16_t length); | 
 |     bool parseSetReleaseFences(uint16_t length); | 
 |     bool parseSetPresentOrValidateDisplayResult(uint16_t length); | 
 |     bool parseSetClientTargetProperty(uint16_t length); | 
 |  | 
 |     struct ReturnData { | 
 |         uint32_t displayRequests = 0; | 
 |  | 
 |         std::vector<Layer> changedLayers; | 
 |         std::vector<IComposerClient::Composition> compositionTypes; | 
 |  | 
 |         std::vector<Layer> requestedLayers; | 
 |         std::vector<uint32_t> requestMasks; | 
 |  | 
 |         int presentFence = -1; | 
 |  | 
 |         std::vector<Layer> releasedLayers; | 
 |         std::vector<int> releaseFences; | 
 |  | 
 |         uint32_t presentOrValidateState; | 
 |  | 
 |         // Composer 2.4 implementation can return a client target property | 
 |         // structure to indicate the client target properties that hardware | 
 |         // composer requests. The composer client must change the client target | 
 |         // properties to match this request. | 
 |         IComposerClient::ClientTargetProperty clientTargetProperty{PixelFormat::RGBA_8888, | 
 |                                                                    Dataspace::UNKNOWN}; | 
 |     }; | 
 |  | 
 |     std::vector<CommandError> mErrors; | 
 |     std::unordered_map<Display, ReturnData> mReturnData; | 
 |  | 
 |     // When SELECT_DISPLAY is parsed, this is updated to point to the | 
 |     // display's return data in mReturnData.  We use it to avoid repeated | 
 |     // map lookups. | 
 |     ReturnData* mCurrentReturnData; | 
 | }; | 
 |  | 
 | // Composer is a wrapper to IComposer, a proxy to server-side composer. | 
 | class Composer final : public Hwc2::Composer { | 
 | public: | 
 |     explicit Composer(const std::string& serviceName); | 
 |     ~Composer() override; | 
 |  | 
 |     std::vector<IComposer::Capability> getCapabilities() override; | 
 |     std::string dumpDebugInfo() override; | 
 |  | 
 |     void registerCallback(const sp<IComposerCallback>& callback) override; | 
 |  | 
 |     // Reset all pending commands in the command buffer. Useful if you want to | 
 |     // skip a frame but have already queued some commands. | 
 |     void resetCommands() override; | 
 |  | 
 |     // Explicitly flush all pending commands in the command buffer. | 
 |     Error executeCommands() override; | 
 |  | 
 |     uint32_t getMaxVirtualDisplayCount() override; | 
 |     Error createVirtualDisplay(uint32_t width, uint32_t height, PixelFormat* format, | 
 |                                Display* outDisplay) override; | 
 |     Error destroyVirtualDisplay(Display display) override; | 
 |  | 
 |     Error acceptDisplayChanges(Display display) override; | 
 |  | 
 |     Error createLayer(Display display, Layer* outLayer) override; | 
 |     Error destroyLayer(Display display, Layer layer) override; | 
 |  | 
 |     Error getActiveConfig(Display display, Config* outConfig) override; | 
 |     Error getChangedCompositionTypes(Display display, std::vector<Layer>* outLayers, | 
 |                                      std::vector<IComposerClient::Composition>* outTypes) override; | 
 |     Error getColorModes(Display display, std::vector<ColorMode>* outModes) override; | 
 |     Error getDisplayAttribute(Display display, Config config, IComposerClient::Attribute attribute, | 
 |                               int32_t* outValue) override; | 
 |     Error getDisplayConfigs(Display display, std::vector<Config>* outConfigs); | 
 |     Error getDisplayName(Display display, std::string* outName) override; | 
 |  | 
 |     Error getDisplayRequests(Display display, uint32_t* outDisplayRequestMask, | 
 |                              std::vector<Layer>* outLayers, | 
 |                              std::vector<uint32_t>* outLayerRequestMasks) override; | 
 |  | 
 |     Error getDozeSupport(Display display, bool* outSupport) override; | 
 |     Error getHdrCapabilities(Display display, std::vector<Hdr>* outTypes, float* outMaxLuminance, | 
 |                              float* outMaxAverageLuminance, float* outMinLuminance) override; | 
 |  | 
 |     Error getReleaseFences(Display display, std::vector<Layer>* outLayers, | 
 |                            std::vector<int>* outReleaseFences) override; | 
 |  | 
 |     Error presentDisplay(Display display, int* outPresentFence) override; | 
 |  | 
 |     Error setActiveConfig(Display display, Config config) override; | 
 |  | 
 |     /* | 
 |      * The composer caches client targets internally.  When target is nullptr, | 
 |      * the composer uses slot to look up the client target from its cache. | 
 |      * When target is not nullptr, the cache is updated with the new target. | 
 |      */ | 
 |     Error setClientTarget(Display display, uint32_t slot, const sp<GraphicBuffer>& target, | 
 |                           int acquireFence, Dataspace dataspace, | 
 |                           const std::vector<IComposerClient::Rect>& damage) override; | 
 |     Error setColorMode(Display display, ColorMode mode, RenderIntent renderIntent) override; | 
 |     Error setColorTransform(Display display, const float* matrix, ColorTransform hint) override; | 
 |     Error setOutputBuffer(Display display, const native_handle_t* buffer, | 
 |                           int releaseFence) override; | 
 |     Error setPowerMode(Display display, IComposerClient::PowerMode mode) override; | 
 |     Error setVsyncEnabled(Display display, IComposerClient::Vsync enabled) override; | 
 |  | 
 |     Error setClientTargetSlotCount(Display display) override; | 
 |  | 
 |     Error validateDisplay(Display display, uint32_t* outNumTypes, | 
 |                           uint32_t* outNumRequests) override; | 
 |  | 
 |     Error presentOrValidateDisplay(Display display, uint32_t* outNumTypes, uint32_t* outNumRequests, | 
 |                                    int* outPresentFence, uint32_t* state) override; | 
 |  | 
 |     Error setCursorPosition(Display display, Layer layer, int32_t x, int32_t y) override; | 
 |     /* see setClientTarget for the purpose of slot */ | 
 |     Error setLayerBuffer(Display display, Layer layer, uint32_t slot, | 
 |                          const sp<GraphicBuffer>& buffer, int acquireFence) override; | 
 |     Error setLayerSurfaceDamage(Display display, Layer layer, | 
 |                                 const std::vector<IComposerClient::Rect>& damage) override; | 
 |     Error setLayerBlendMode(Display display, Layer layer, IComposerClient::BlendMode mode) override; | 
 |     Error setLayerColor(Display display, Layer layer, const IComposerClient::Color& color) override; | 
 |     Error setLayerCompositionType(Display display, Layer layer, | 
 |                                   IComposerClient::Composition type) override; | 
 |     Error setLayerDataspace(Display display, Layer layer, Dataspace dataspace) override; | 
 |     Error setLayerDisplayFrame(Display display, Layer layer, | 
 |                                const IComposerClient::Rect& frame) override; | 
 |     Error setLayerPlaneAlpha(Display display, Layer layer, float alpha) override; | 
 |     Error setLayerSidebandStream(Display display, Layer layer, | 
 |                                  const native_handle_t* stream) override; | 
 |     Error setLayerSourceCrop(Display display, Layer layer, | 
 |                              const IComposerClient::FRect& crop) override; | 
 |     Error setLayerTransform(Display display, Layer layer, Transform transform) override; | 
 |     Error setLayerVisibleRegion(Display display, Layer layer, | 
 |                                 const std::vector<IComposerClient::Rect>& visible) override; | 
 |     Error setLayerZOrder(Display display, Layer layer, uint32_t z) override; | 
 |  | 
 |     // Composer HAL 2.2 | 
 |     Error setLayerPerFrameMetadata( | 
 |             Display display, Layer layer, | 
 |             const std::vector<IComposerClient::PerFrameMetadata>& perFrameMetadatas) override; | 
 |     std::vector<IComposerClient::PerFrameMetadataKey> getPerFrameMetadataKeys( | 
 |             Display display) override; | 
 |     Error getRenderIntents(Display display, ColorMode colorMode, | 
 |             std::vector<RenderIntent>* outRenderIntents) override; | 
 |     Error getDataspaceSaturationMatrix(Dataspace dataspace, mat4* outMatrix) override; | 
 |  | 
 |     // Composer HAL 2.3 | 
 |     Error getDisplayIdentificationData(Display display, uint8_t* outPort, | 
 |                                        std::vector<uint8_t>* outData) override; | 
 |     Error setLayerColorTransform(Display display, Layer layer, const float* matrix) override; | 
 |     Error getDisplayedContentSamplingAttributes(Display display, PixelFormat* outFormat, | 
 |                                                 Dataspace* outDataspace, | 
 |                                                 uint8_t* outComponentMask) override; | 
 |     Error setDisplayContentSamplingEnabled(Display display, bool enabled, uint8_t componentMask, | 
 |                                            uint64_t maxFrames) override; | 
 |     Error getDisplayedContentSample(Display display, uint64_t maxFrames, uint64_t timestamp, | 
 |                                     DisplayedFrameStats* outStats) override; | 
 |     Error setLayerPerFrameMetadataBlobs( | 
 |             Display display, Layer layer, | 
 |             const std::vector<IComposerClient::PerFrameMetadataBlob>& metadata) override; | 
 |     Error setDisplayBrightness(Display display, float brightness) override; | 
 |  | 
 |     // Composer HAL 2.4 | 
 |     bool isVsyncPeriodSwitchSupported() override { return mClient_2_4 != nullptr; } | 
 |     Error getDisplayCapabilities(Display display, | 
 |                                  std::vector<DisplayCapability>* outCapabilities) override; | 
 |     V2_4::Error getDisplayConnectionType(Display display, | 
 |                                          IComposerClient::DisplayConnectionType* outType) override; | 
 |     V2_4::Error getDisplayVsyncPeriod(Display display, VsyncPeriodNanos* outVsyncPeriod) override; | 
 |     V2_4::Error setActiveConfigWithConstraints( | 
 |             Display display, Config config, | 
 |             const IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints, | 
 |             VsyncPeriodChangeTimeline* outTimeline) override; | 
 |     V2_4::Error setAutoLowLatencyMode(Display displayId, bool on) override; | 
 |     V2_4::Error getSupportedContentTypes( | 
 |             Display displayId, | 
 |             std::vector<IComposerClient::ContentType>* outSupportedContentTypes) override; | 
 |     V2_4::Error setContentType(Display displayId, | 
 |                                IComposerClient::ContentType contentType) override; | 
 |     V2_4::Error setLayerGenericMetadata(Display display, Layer layer, const std::string& key, | 
 |                                         bool mandatory, const std::vector<uint8_t>& value) override; | 
 |     V2_4::Error getLayerGenericMetadataKeys( | 
 |             std::vector<IComposerClient::LayerGenericMetadataKey>* outKeys) override; | 
 |     Error getClientTargetProperty( | 
 |             Display display, | 
 |             IComposerClient::ClientTargetProperty* outClientTargetProperty) override; | 
 |  | 
 | private: | 
 |     class CommandWriter : public CommandWriterBase { | 
 |     public: | 
 |         explicit CommandWriter(uint32_t initialMaxSize) : CommandWriterBase(initialMaxSize) {} | 
 |         ~CommandWriter() override {} | 
 |     }; | 
 |  | 
 |     // Many public functions above simply write a command into the command | 
 |     // queue to batch the calls.  validateDisplay and presentDisplay will call | 
 |     // this function to execute the command queue. | 
 |     Error execute(); | 
 |  | 
 |     sp<V2_1::IComposer> mComposer; | 
 |  | 
 |     sp<V2_1::IComposerClient> mClient; | 
 |     sp<V2_2::IComposerClient> mClient_2_2; | 
 |     sp<V2_3::IComposerClient> mClient_2_3; | 
 |     sp<IComposerClient> mClient_2_4; | 
 |  | 
 |     // 64KiB minus a small space for metadata such as read/write pointers | 
 |     static constexpr size_t kWriterInitialSize = | 
 |         64 * 1024 / sizeof(uint32_t) - 16; | 
 |     CommandWriter mWriter; | 
 |     CommandReader mReader; | 
 | }; | 
 |  | 
 | } // namespace impl | 
 |  | 
 | } // namespace Hwc2 | 
 |  | 
 | } // namespace android | 
 |  | 
 | #endif // ANDROID_SF_COMPOSER_HAL_H |