| /* |
| * Copyright 2015 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_HWC2_ON_1_ADAPTER_H |
| #define ANDROID_SF_HWC2_ON_1_ADAPTER_H |
| |
| #define HWC2_INCLUDE_STRINGIFICATION |
| #define HWC2_USE_CPP11 |
| #include <hardware/hwcomposer2.h> |
| #undef HWC2_INCLUDE_STRINGIFICATION |
| #undef HWC2_USE_CPP11 |
| |
| #include "MiniFence.h" |
| |
| #include <atomic> |
| #include <map> |
| #include <mutex> |
| #include <queue> |
| #include <set> |
| #include <unordered_map> |
| #include <unordered_set> |
| #include <vector> |
| |
| struct hwc_composer_device_1; |
| struct hwc_display_contents_1; |
| struct hwc_layer_1; |
| |
| namespace android { |
| |
| // For devices unable to provide an implementation of HWC2 (see hwcomposer2.h), |
| // we provide an adapter able to talk to HWC1 (see hwcomposer.h). It translates |
| // streamed function calls ala HWC2 model to batched array of structs calls ala |
| // HWC1 model. |
| class HWC2On1Adapter : public hwc2_device_t |
| { |
| public: |
| explicit HWC2On1Adapter(struct hwc_composer_device_1* hwc1Device); |
| ~HWC2On1Adapter(); |
| |
| struct hwc_composer_device_1* getHwc1Device() const { return mHwc1Device; } |
| uint8_t getHwc1MinorVersion() const { return mHwc1MinorVersion; } |
| |
| private: |
| static inline HWC2On1Adapter* getAdapter(hwc2_device_t* device) { |
| return static_cast<HWC2On1Adapter*>(device); |
| } |
| |
| // getCapabilities |
| |
| void doGetCapabilities(uint32_t* outCount, |
| int32_t* /*hwc2_capability_t*/ outCapabilities); |
| static void getCapabilitiesHook(hwc2_device_t* device, uint32_t* outCount, |
| int32_t* /*hwc2_capability_t*/ outCapabilities) { |
| getAdapter(device)->doGetCapabilities(outCount, outCapabilities); |
| } |
| |
| bool supportsBackgroundColor() { |
| return mHwc1SupportsBackgroundColor; |
| } |
| |
| // getFunction |
| |
| hwc2_function_pointer_t doGetFunction(HWC2::FunctionDescriptor descriptor); |
| static hwc2_function_pointer_t getFunctionHook(hwc2_device_t* device, |
| int32_t intDesc) { |
| auto descriptor = static_cast<HWC2::FunctionDescriptor>(intDesc); |
| return getAdapter(device)->doGetFunction(descriptor); |
| } |
| |
| // Device functions |
| |
| HWC2::Error createVirtualDisplay(uint32_t width, uint32_t height, |
| hwc2_display_t* outDisplay); |
| static int32_t createVirtualDisplayHook(hwc2_device_t* device, |
| uint32_t width, uint32_t height, int32_t* /*format*/, |
| hwc2_display_t* outDisplay) { |
| // HWC1 implementations cannot override the buffer format requested by |
| // the consumer |
| auto error = getAdapter(device)->createVirtualDisplay(width, height, |
| outDisplay); |
| return static_cast<int32_t>(error); |
| } |
| |
| HWC2::Error destroyVirtualDisplay(hwc2_display_t display); |
| static int32_t destroyVirtualDisplayHook(hwc2_device_t* device, |
| hwc2_display_t display) { |
| auto error = getAdapter(device)->destroyVirtualDisplay(display); |
| return static_cast<int32_t>(error); |
| } |
| |
| std::string mDumpString; |
| void dump(uint32_t* outSize, char* outBuffer); |
| static void dumpHook(hwc2_device_t* device, uint32_t* outSize, |
| char* outBuffer) { |
| getAdapter(device)->dump(outSize, outBuffer); |
| } |
| |
| uint32_t getMaxVirtualDisplayCount(); |
| static uint32_t getMaxVirtualDisplayCountHook(hwc2_device_t* device) { |
| return getAdapter(device)->getMaxVirtualDisplayCount(); |
| } |
| |
| HWC2::Error registerCallback(HWC2::Callback descriptor, |
| hwc2_callback_data_t callbackData, hwc2_function_pointer_t pointer); |
| static int32_t registerCallbackHook(hwc2_device_t* device, |
| int32_t intDesc, hwc2_callback_data_t callbackData, |
| hwc2_function_pointer_t pointer) { |
| auto descriptor = static_cast<HWC2::Callback>(intDesc); |
| auto error = getAdapter(device)->registerCallback(descriptor, |
| callbackData, pointer); |
| return static_cast<int32_t>(error); |
| } |
| |
| // Display functions |
| |
| class Layer; |
| |
| class SortLayersByZ { |
| public: |
| bool operator()(const std::shared_ptr<Layer>& lhs, |
| const std::shared_ptr<Layer>& rhs); |
| }; |
| |
| // The semantics of the fences returned by the device differ between |
| // hwc1.set() and hwc2.present(). Read hwcomposer.h and hwcomposer2.h |
| // for more information. |
| // |
| // Release fences in hwc1 are obtained on set() for a frame n and signaled |
| // when the layer buffer is not needed for read operations anymore |
| // (typically on frame n+1). In HWC2, release fences are obtained with a |
| // special call after present() for frame n. These fences signal |
| // on frame n: More specifically, the fence for a given buffer provided in |
| // frame n will signal when the prior buffer is no longer required. |
| // |
| // A retire fence (HWC1) is signaled when a composition is replaced |
| // on the panel whereas a present fence (HWC2) is signaled when a |
| // composition starts to be displayed on a panel. |
| // |
| // The HWC2to1Adapter emulates the new fence semantics for a frame |
| // n by returning the fence from frame n-1. For frame 0, the adapter |
| // returns NO_FENCE. |
| class DeferredFence { |
| public: |
| DeferredFence() |
| : mFences({MiniFence::NO_FENCE, MiniFence::NO_FENCE}) {} |
| |
| void add(int32_t fenceFd) { |
| mFences.emplace(new MiniFence(fenceFd)); |
| mFences.pop(); |
| } |
| |
| const sp<MiniFence>& get() const { |
| return mFences.front(); |
| } |
| |
| private: |
| // There are always two fences in this queue. |
| std::queue<sp<MiniFence>> mFences; |
| }; |
| |
| class FencedBuffer { |
| public: |
| FencedBuffer() : mBuffer(nullptr), mFence(MiniFence::NO_FENCE) {} |
| |
| void setBuffer(buffer_handle_t buffer) { mBuffer = buffer; } |
| void setFence(int fenceFd) { mFence = new MiniFence(fenceFd); } |
| |
| buffer_handle_t getBuffer() const { return mBuffer; } |
| int getFence() const { return mFence->dup(); } |
| |
| private: |
| buffer_handle_t mBuffer; |
| sp<MiniFence> mFence; |
| }; |
| |
| class Display { |
| public: |
| Display(HWC2On1Adapter& device, HWC2::DisplayType type); |
| |
| hwc2_display_t getId() const { return mId; } |
| HWC2On1Adapter& getDevice() const { return mDevice; } |
| |
| // Does not require locking because it is set before adding the |
| // Displays to the Adapter's list of displays |
| void setHwc1Id(int32_t id) { mHwc1Id = id; } |
| int32_t getHwc1Id() const { return mHwc1Id; } |
| |
| // HWC2 Display functions |
| HWC2::Error acceptChanges(); |
| HWC2::Error createLayer(hwc2_layer_t* outLayerId); |
| HWC2::Error destroyLayer(hwc2_layer_t layerId); |
| HWC2::Error getActiveConfig(hwc2_config_t* outConfigId); |
| HWC2::Error getAttribute(hwc2_config_t configId, |
| HWC2::Attribute attribute, int32_t* outValue); |
| HWC2::Error getChangedCompositionTypes(uint32_t* outNumElements, |
| hwc2_layer_t* outLayers, int32_t* outTypes); |
| HWC2::Error getColorModes(uint32_t* outNumModes, int32_t* outModes); |
| HWC2::Error getConfigs(uint32_t* outNumConfigs, |
| hwc2_config_t* outConfigIds); |
| HWC2::Error getDozeSupport(int32_t* outSupport); |
| HWC2::Error getHdrCapabilities(uint32_t* outNumTypes, |
| int32_t* outTypes, float* outMaxLuminance, |
| float* outMaxAverageLuminance, float* outMinLuminance); |
| HWC2::Error getName(uint32_t* outSize, char* outName); |
| HWC2::Error getReleaseFences(uint32_t* outNumElements, |
| hwc2_layer_t* outLayers, int32_t* outFences); |
| HWC2::Error getRequests(int32_t* outDisplayRequests, |
| uint32_t* outNumElements, hwc2_layer_t* outLayers, |
| int32_t* outLayerRequests); |
| HWC2::Error getType(int32_t* outType); |
| |
| // Since HWC1 "presents" (called "set" in HWC1) all Displays |
| // at once, the first call to any Display::present will trigger |
| // present() on all Displays in the Device. Subsequent calls without |
| // first calling validate() are noop (except for duping/returning |
| // the retire fence). |
| HWC2::Error present(int32_t* outRetireFence); |
| |
| HWC2::Error setActiveConfig(hwc2_config_t configId); |
| HWC2::Error setClientTarget(buffer_handle_t target, |
| int32_t acquireFence, int32_t dataspace, |
| hwc_region_t damage); |
| HWC2::Error setColorMode(android_color_mode_t mode); |
| HWC2::Error setColorTransform(android_color_transform_t hint); |
| HWC2::Error setOutputBuffer(buffer_handle_t buffer, |
| int32_t releaseFence); |
| HWC2::Error setPowerMode(HWC2::PowerMode mode); |
| HWC2::Error setVsyncEnabled(HWC2::Vsync enabled); |
| |
| // Since HWC1 "validates" (called "prepare" in HWC1) all Displays |
| // at once, the first call to any Display::validate() will trigger |
| // validate() on all other Displays in the Device. |
| HWC2::Error validate(uint32_t* outNumTypes, |
| uint32_t* outNumRequests); |
| |
| HWC2::Error updateLayerZ(hwc2_layer_t layerId, uint32_t z); |
| |
| HWC2::Error getClientTargetSupport(uint32_t width, uint32_t height, |
| int32_t format, int32_t dataspace); |
| |
| // Read configs from HWC1 device |
| void populateConfigs(); |
| |
| // Set configs for a virtual display |
| void populateConfigs(uint32_t width, uint32_t height); |
| |
| bool prepare(); |
| |
| // Called after hwc.prepare() with responses from the device. |
| void generateChanges(); |
| |
| bool hasChanges() const; |
| HWC2::Error set(hwc_display_contents_1& hwcContents); |
| void addRetireFence(int fenceFd); |
| void addReleaseFences(const hwc_display_contents_1& hwcContents); |
| |
| bool hasColorTransform() const; |
| |
| std::string dump() const; |
| |
| // Return a rect from the pool allocated during validate() |
| hwc_rect_t* GetRects(size_t numRects); |
| |
| hwc_display_contents_1* getDisplayContents(); |
| |
| void markGeometryChanged() { mGeometryChanged = true; } |
| void resetGeometryMarker() { mGeometryChanged = false;} |
| private: |
| class Config { |
| public: |
| Config(Display& display) |
| : mDisplay(display), |
| mId(0), |
| mAttributes() {} |
| |
| bool isOnDisplay(const Display& display) const { |
| return display.getId() == mDisplay.getId(); |
| } |
| |
| void setAttribute(HWC2::Attribute attribute, int32_t value); |
| int32_t getAttribute(HWC2::Attribute attribute) const; |
| |
| void setHwc1Id(uint32_t id); |
| bool hasHwc1Id(uint32_t id) const; |
| HWC2::Error getColorModeForHwc1Id(uint32_t id, |
| android_color_mode_t *outMode) const; |
| HWC2::Error getHwc1IdForColorMode(android_color_mode_t mode, |
| uint32_t* outId) const; |
| |
| void setId(hwc2_config_t id) { mId = id; } |
| hwc2_config_t getId() const { return mId; } |
| |
| // Attempts to merge two configs that differ only in color |
| // mode. Returns whether the merge was successful |
| bool merge(const Config& other); |
| |
| std::set<android_color_mode_t> getColorModes() const; |
| |
| // splitLine divides the output into two lines suitable for |
| // dumpsys SurfaceFlinger |
| std::string toString(bool splitLine = false) const; |
| |
| private: |
| Display& mDisplay; |
| hwc2_config_t mId; |
| std::unordered_map<HWC2::Attribute, int32_t> mAttributes; |
| |
| // Maps from color transform to HWC1 config ID |
| std::unordered_map<android_color_mode_t, uint32_t> mHwc1Ids; |
| }; |
| |
| // Stores changes requested from the device upon calling prepare(). |
| // Handles change request to: |
| // - Layer composition type. |
| // - Layer hints. |
| class Changes { |
| public: |
| uint32_t getNumTypes() const { |
| return static_cast<uint32_t>(mTypeChanges.size()); |
| } |
| |
| uint32_t getNumLayerRequests() const { |
| return static_cast<uint32_t>(mLayerRequests.size()); |
| } |
| |
| const std::unordered_map<hwc2_layer_t, HWC2::Composition>& |
| getTypeChanges() const { |
| return mTypeChanges; |
| } |
| |
| const std::unordered_map<hwc2_layer_t, HWC2::LayerRequest>& |
| getLayerRequests() const { |
| return mLayerRequests; |
| } |
| |
| void addTypeChange(hwc2_layer_t layerId, |
| HWC2::Composition type) { |
| mTypeChanges.insert({layerId, type}); |
| } |
| |
| void clearTypeChanges() { mTypeChanges.clear(); } |
| |
| void addLayerRequest(hwc2_layer_t layerId, |
| HWC2::LayerRequest request) { |
| mLayerRequests.insert({layerId, request}); |
| } |
| |
| private: |
| std::unordered_map<hwc2_layer_t, HWC2::Composition> |
| mTypeChanges; |
| std::unordered_map<hwc2_layer_t, HWC2::LayerRequest> |
| mLayerRequests; |
| }; |
| |
| std::shared_ptr<const Config> |
| getConfig(hwc2_config_t configId) const; |
| |
| void populateColorModes(); |
| void initializeActiveConfig(); |
| |
| // Creates a bi-directional mapping between index in HWC1 |
| // prepare/set array and Layer object. Stores mapping in |
| // mHwc1LayerMap and also updates Layer's attribute mHwc1Id. |
| void assignHwc1LayerIds(); |
| |
| // Called after a response to prepare() has been received: |
| // Ingest composition type changes requested by the device. |
| void updateTypeChanges(const struct hwc_layer_1& hwc1Layer, |
| const Layer& layer); |
| |
| // Called after a response to prepare() has been received: |
| // Ingest layer hint changes requested by the device. |
| void updateLayerRequests(const struct hwc_layer_1& hwc1Layer, |
| const Layer& layer); |
| |
| // Set all fields in HWC1 comm array for layer containing the |
| // HWC_FRAMEBUFFER_TARGET (always the last layer). |
| void prepareFramebufferTarget(); |
| |
| // Display ID generator. |
| static std::atomic<hwc2_display_t> sNextId; |
| const hwc2_display_t mId; |
| |
| |
| HWC2On1Adapter& mDevice; |
| |
| // The state of this display should only be modified from |
| // SurfaceFlinger's main loop, with the exception of when dump is |
| // called. To prevent a bad state from crashing us during a dump |
| // call, all public calls into Display must acquire this mutex. |
| // |
| // It is recursive because we don't want to deadlock in validate |
| // (or present) when we call HWC2On1Adapter::prepareAllDisplays |
| // (or setAllDisplays), which calls back into Display functions |
| // which require locking. |
| mutable std::recursive_mutex mStateMutex; |
| |
| // Allocate RAM able to store all layers and rects used for |
| // communication with HWC1. Place allocated RAM in variable |
| // mHwc1RequestedContents. |
| void allocateRequestedContents(); |
| |
| // Array of structs exchanged between client and hwc1 device. |
| // Sent to device upon calling prepare(). |
| std::unique_ptr<hwc_display_contents_1> mHwc1RequestedContents; |
| private: |
| DeferredFence mRetireFence; |
| |
| // Will only be non-null after the Display has been validated and |
| // before it has been presented |
| std::unique_ptr<Changes> mChanges; |
| |
| int32_t mHwc1Id; |
| |
| std::vector<std::shared_ptr<Config>> mConfigs; |
| std::shared_ptr<const Config> mActiveConfig; |
| std::set<android_color_mode_t> mColorModes; |
| android_color_mode_t mActiveColorMode; |
| std::string mName; |
| HWC2::DisplayType mType; |
| HWC2::PowerMode mPowerMode; |
| HWC2::Vsync mVsyncEnabled; |
| |
| // Used to populate HWC1 HWC_FRAMEBUFFER_TARGET layer |
| FencedBuffer mClientTarget; |
| |
| |
| FencedBuffer mOutputBuffer; |
| |
| bool mHasColorTransform; |
| |
| // All layers this Display is aware of. |
| std::multiset<std::shared_ptr<Layer>, SortLayersByZ> mLayers; |
| |
| // Mapping between layer index in array of hwc_display_contents_1* |
| // passed to HWC1 during validate/set and Layer object. |
| std::unordered_map<size_t, std::shared_ptr<Layer>> mHwc1LayerMap; |
| |
| // All communication with HWC1 via prepare/set is done with one |
| // alloc. This pointer is pointing to a pool of hwc_rect_t. |
| size_t mNumAvailableRects; |
| hwc_rect_t* mNextAvailableRect; |
| |
| // True if any of the Layers contained in this Display have been |
| // updated with anything other than a buffer since last call to |
| // Display::set() |
| bool mGeometryChanged; |
| }; |
| |
| // Utility template calling a Display object method directly based on the |
| // hwc2_display_t displayId parameter. |
| template <typename ...Args> |
| static int32_t callDisplayFunction(hwc2_device_t* device, |
| hwc2_display_t displayId, HWC2::Error (Display::*member)(Args...), |
| Args... args) { |
| auto display = getAdapter(device)->getDisplay(displayId); |
| if (!display) { |
| return static_cast<int32_t>(HWC2::Error::BadDisplay); |
| } |
| auto error = ((*display).*member)(std::forward<Args>(args)...); |
| return static_cast<int32_t>(error); |
| } |
| |
| template <typename MF, MF memFunc, typename ...Args> |
| static int32_t displayHook(hwc2_device_t* device, hwc2_display_t displayId, |
| Args... args) { |
| return HWC2On1Adapter::callDisplayFunction(device, displayId, memFunc, |
| std::forward<Args>(args)...); |
| } |
| |
| static int32_t getDisplayAttributeHook(hwc2_device_t* device, |
| hwc2_display_t display, hwc2_config_t config, |
| int32_t intAttribute, int32_t* outValue) { |
| auto attribute = static_cast<HWC2::Attribute>(intAttribute); |
| return callDisplayFunction(device, display, &Display::getAttribute, |
| config, attribute, outValue); |
| } |
| |
| static int32_t setColorTransformHook(hwc2_device_t* device, |
| hwc2_display_t display, const float* /*matrix*/, |
| int32_t /*android_color_transform_t*/ intHint) { |
| // We intentionally throw away the matrix, because if the hint is |
| // anything other than IDENTITY, we have to fall back to client |
| // composition anyway |
| auto hint = static_cast<android_color_transform_t>(intHint); |
| return callDisplayFunction(device, display, &Display::setColorTransform, |
| hint); |
| } |
| |
| static int32_t setColorModeHook(hwc2_device_t* device, |
| hwc2_display_t display, int32_t /*android_color_mode_t*/ intMode) { |
| auto mode = static_cast<android_color_mode_t>(intMode); |
| return callDisplayFunction(device, display, &Display::setColorMode, |
| mode); |
| } |
| |
| static int32_t setPowerModeHook(hwc2_device_t* device, |
| hwc2_display_t display, int32_t intMode) { |
| auto mode = static_cast<HWC2::PowerMode>(intMode); |
| return callDisplayFunction(device, display, &Display::setPowerMode, |
| mode); |
| } |
| |
| static int32_t setVsyncEnabledHook(hwc2_device_t* device, |
| hwc2_display_t display, int32_t intEnabled) { |
| auto enabled = static_cast<HWC2::Vsync>(intEnabled); |
| return callDisplayFunction(device, display, &Display::setVsyncEnabled, |
| enabled); |
| } |
| |
| class Layer { |
| public: |
| explicit Layer(Display& display); |
| |
| bool operator==(const Layer& other) { return mId == other.mId; } |
| bool operator!=(const Layer& other) { return !(*this == other); } |
| |
| hwc2_layer_t getId() const { return mId; } |
| Display& getDisplay() const { return mDisplay; } |
| |
| // HWC2 Layer functions |
| HWC2::Error setBuffer(buffer_handle_t buffer, int32_t acquireFence); |
| HWC2::Error setCursorPosition(int32_t x, int32_t y); |
| HWC2::Error setSurfaceDamage(hwc_region_t damage); |
| |
| // HWC2 Layer state functions |
| HWC2::Error setBlendMode(HWC2::BlendMode mode); |
| HWC2::Error setColor(hwc_color_t color); |
| HWC2::Error setCompositionType(HWC2::Composition type); |
| HWC2::Error setDataspace(android_dataspace_t dataspace); |
| HWC2::Error setDisplayFrame(hwc_rect_t frame); |
| HWC2::Error setPlaneAlpha(float alpha); |
| HWC2::Error setSidebandStream(const native_handle_t* stream); |
| HWC2::Error setSourceCrop(hwc_frect_t crop); |
| HWC2::Error setTransform(HWC2::Transform transform); |
| HWC2::Error setVisibleRegion(hwc_region_t visible); |
| HWC2::Error setZ(uint32_t z); |
| |
| HWC2::Composition getCompositionType() const { |
| return mCompositionType; |
| } |
| uint32_t getZ() const { return mZ; } |
| |
| void addReleaseFence(int fenceFd); |
| const sp<MiniFence>& getReleaseFence() const; |
| |
| void setHwc1Id(size_t id) { mHwc1Id = id; } |
| size_t getHwc1Id() const { return mHwc1Id; } |
| |
| // Write state to HWC1 communication struct. |
| void applyState(struct hwc_layer_1& hwc1Layer); |
| |
| std::string dump() const; |
| |
| std::size_t getNumVisibleRegions() { return mVisibleRegion.size(); } |
| |
| std::size_t getNumSurfaceDamages() { return mSurfaceDamage.size(); } |
| |
| // True if a layer cannot be properly rendered by the device due |
| // to usage of SolidColor (a.k.a BackgroundColor in HWC1). |
| bool hasUnsupportedBackgroundColor() { |
| return (mCompositionType == HWC2::Composition::SolidColor && |
| !mDisplay.getDevice().supportsBackgroundColor()); |
| } |
| private: |
| void applyCommonState(struct hwc_layer_1& hwc1Layer); |
| void applySolidColorState(struct hwc_layer_1& hwc1Layer); |
| void applySidebandState(struct hwc_layer_1& hwc1Layer); |
| void applyBufferState(struct hwc_layer_1& hwc1Layer); |
| void applyCompositionType(struct hwc_layer_1& hwc1Layer); |
| |
| static std::atomic<hwc2_layer_t> sNextId; |
| const hwc2_layer_t mId; |
| Display& mDisplay; |
| |
| FencedBuffer mBuffer; |
| std::vector<hwc_rect_t> mSurfaceDamage; |
| |
| HWC2::BlendMode mBlendMode; |
| hwc_color_t mColor; |
| HWC2::Composition mCompositionType; |
| hwc_rect_t mDisplayFrame; |
| float mPlaneAlpha; |
| const native_handle_t* mSidebandStream; |
| hwc_frect_t mSourceCrop; |
| HWC2::Transform mTransform; |
| std::vector<hwc_rect_t> mVisibleRegion; |
| |
| uint32_t mZ; |
| |
| DeferredFence mReleaseFence; |
| |
| size_t mHwc1Id; |
| bool mHasUnsupportedPlaneAlpha; |
| }; |
| |
| // Utility tempate calling a Layer object method based on ID parameters: |
| // hwc2_display_t displayId |
| // and |
| // hwc2_layer_t layerId |
| template <typename ...Args> |
| static int32_t callLayerFunction(hwc2_device_t* device, |
| hwc2_display_t displayId, hwc2_layer_t layerId, |
| HWC2::Error (Layer::*member)(Args...), Args... args) { |
| auto result = getAdapter(device)->getLayer(displayId, layerId); |
| auto error = std::get<HWC2::Error>(result); |
| if (error == HWC2::Error::None) { |
| auto layer = std::get<Layer*>(result); |
| error = ((*layer).*member)(std::forward<Args>(args)...); |
| } |
| return static_cast<int32_t>(error); |
| } |
| |
| template <typename MF, MF memFunc, typename ...Args> |
| static int32_t layerHook(hwc2_device_t* device, hwc2_display_t displayId, |
| hwc2_layer_t layerId, Args... args) { |
| return HWC2On1Adapter::callLayerFunction(device, displayId, layerId, |
| memFunc, std::forward<Args>(args)...); |
| } |
| |
| // Layer state functions |
| |
| static int32_t setLayerBlendModeHook(hwc2_device_t* device, |
| hwc2_display_t display, hwc2_layer_t layer, int32_t intMode) { |
| auto mode = static_cast<HWC2::BlendMode>(intMode); |
| return callLayerFunction(device, display, layer, |
| &Layer::setBlendMode, mode); |
| } |
| |
| static int32_t setLayerCompositionTypeHook(hwc2_device_t* device, |
| hwc2_display_t display, hwc2_layer_t layer, int32_t intType) { |
| auto type = static_cast<HWC2::Composition>(intType); |
| return callLayerFunction(device, display, layer, |
| &Layer::setCompositionType, type); |
| } |
| |
| static int32_t setLayerDataspaceHook(hwc2_device_t* device, |
| hwc2_display_t display, hwc2_layer_t layer, int32_t intDataspace) { |
| auto dataspace = static_cast<android_dataspace_t>(intDataspace); |
| return callLayerFunction(device, display, layer, &Layer::setDataspace, |
| dataspace); |
| } |
| |
| static int32_t setLayerTransformHook(hwc2_device_t* device, |
| hwc2_display_t display, hwc2_layer_t layer, int32_t intTransform) { |
| auto transform = static_cast<HWC2::Transform>(intTransform); |
| return callLayerFunction(device, display, layer, &Layer::setTransform, |
| transform); |
| } |
| |
| static int32_t setLayerZOrderHook(hwc2_device_t* device, |
| hwc2_display_t display, hwc2_layer_t layer, uint32_t z) { |
| return callDisplayFunction(device, display, &Display::updateLayerZ, |
| layer, z); |
| } |
| |
| // Adapter internals |
| |
| void populateCapabilities(); |
| Display* getDisplay(hwc2_display_t id); |
| std::tuple<Layer*, HWC2::Error> getLayer(hwc2_display_t displayId, |
| hwc2_layer_t layerId); |
| void populatePrimary(); |
| |
| bool prepareAllDisplays(); |
| std::vector<struct hwc_display_contents_1*> mHwc1Contents; |
| HWC2::Error setAllDisplays(); |
| |
| // Callbacks |
| void hwc1Invalidate(); |
| void hwc1Vsync(int hwc1DisplayId, int64_t timestamp); |
| void hwc1Hotplug(int hwc1DisplayId, int connected); |
| |
| // These are set in the constructor and before any asynchronous events are |
| // possible |
| |
| struct hwc_composer_device_1* const mHwc1Device; |
| const uint8_t mHwc1MinorVersion; |
| bool mHwc1SupportsVirtualDisplays; |
| bool mHwc1SupportsBackgroundColor; |
| |
| class Callbacks; |
| const std::unique_ptr<Callbacks> mHwc1Callbacks; |
| |
| std::unordered_set<HWC2::Capability> mCapabilities; |
| |
| // These are only accessed from the main SurfaceFlinger thread (not from |
| // callbacks or dump |
| |
| std::map<hwc2_layer_t, std::shared_ptr<Layer>> mLayers; |
| |
| // A HWC1 supports only one virtual display. |
| std::shared_ptr<Display> mHwc1VirtualDisplay; |
| |
| // These are potentially accessed from multiple threads, and are protected |
| // by this mutex. This needs to be recursive, since the HWC1 implementation |
| // can call back into the invalidate callback on the same thread that is |
| // calling prepare. |
| std::recursive_timed_mutex mStateMutex; |
| |
| struct CallbackInfo { |
| hwc2_callback_data_t data; |
| hwc2_function_pointer_t pointer; |
| }; |
| std::unordered_map<HWC2::Callback, CallbackInfo> mCallbacks; |
| bool mHasPendingInvalidate; |
| |
| // There is a small gap between the time the HWC1 module is started and |
| // when the callbacks for vsync and hotplugs are registered by the |
| // HWC2on1Adapter. To prevent losing events they are stored in these arrays |
| // and fed to the callback as soon as possible. |
| std::vector<std::pair<int, int64_t>> mPendingVsyncs; |
| std::vector<std::pair<int, int>> mPendingHotplugs; |
| |
| // Mapping between HWC1 display id and Display objects. |
| std::map<hwc2_display_t, std::shared_ptr<Display>> mDisplays; |
| |
| // Map HWC1 display type (HWC_DISPLAY_PRIMARY, HWC_DISPLAY_EXTERNAL, |
| // HWC_DISPLAY_VIRTUAL) to Display IDs generated by HWC2on1Adapter objects. |
| std::unordered_map<int, hwc2_display_t> mHwc1DisplayMap; |
| }; |
| |
| } // namespace android |
| |
| #endif |
