| /* |
| * Copyright 2021 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_HWC_HOSTCOMPOSER_H |
| #define ANDROID_HWC_HOSTCOMPOSER_H |
| |
| #include <android-base/unique_fd.h> |
| |
| #include <tuple> |
| #include <vector> |
| |
| #include "Common.h" |
| #include "Composer.h" |
| #include "DrmPresenter.h" |
| #include "FencedBuffer.h" |
| #include "HostConnection.h" |
| |
| namespace android { |
| |
| class HostComposer : public Composer { |
| public: |
| HostComposer(DrmPresenter* drmPresenter, bool isMinigbm); |
| |
| HostComposer(const HostComposer&) = delete; |
| HostComposer& operator=(const HostComposer&) = delete; |
| |
| HostComposer(HostComposer&&) = delete; |
| HostComposer& operator=(HostComposer&&) = delete; |
| |
| HWC2::Error init() override; |
| |
| HWC2::Error onDisplayCreate(Display* display) override; |
| |
| HWC2::Error onDisplayDestroy(Display* display) override; |
| |
| HWC2::Error onDisplayClientTargetSet(Display* display) override; |
| |
| // Determines if this composer can compose the given layers on the given |
| // display and requests changes for layers that can't not be composed. |
| HWC2::Error validateDisplay( |
| Display* display, std::unordered_map<hwc2_layer_t, HWC2::Composition>* |
| outLayerCompositionChanges) override; |
| |
| // Performs the actual composition of layers and presents the composed result |
| // to the display. |
| std::tuple<HWC2::Error, base::unique_fd> presentDisplay( |
| Display* display) override; |
| |
| HWC2::Error onActiveConfigChange(Display* display) override; |
| |
| private: |
| HWC2::Error createHostComposerDisplayInfo(Display* display, |
| uint32_t hostDisplayId); |
| |
| void post(HostConnection* hostCon, ExtendedRCEncoderContext* rcEnc, |
| buffer_handle_t h); |
| |
| bool mIsMinigbm = false; |
| |
| int mSyncDeviceFd = -1; |
| |
| class CompositionResultBuffer { |
| public: |
| static std::unique_ptr<CompositionResultBuffer> create(int32_t width, |
| int32_t height); |
| static std::unique_ptr<CompositionResultBuffer> createWithDrmBuffer( |
| int32_t width, int32_t height, DrmPresenter&); |
| ~CompositionResultBuffer(); |
| |
| DrmBuffer& waitAndGetDrmBuffer(); |
| buffer_handle_t waitAndGetBufferHandle(); |
| bool isReady() const; |
| void setFence(base::unique_fd fence); |
| |
| private: |
| CompositionResultBuffer() = default; |
| |
| void waitForFence(); |
| |
| std::unique_ptr<FencedBuffer> mFencedBuffer; |
| // Drm info for the additional composition result buffer. |
| std::unique_ptr<DrmBuffer> mDrmBuffer; |
| }; |
| class HostComposerDisplayInfo { |
| public: |
| HostComposerDisplayInfo() = default; |
| void resetCompositionResultBuffers( |
| std::vector<std::unique_ptr<CompositionResultBuffer>>); |
| CompositionResultBuffer& getNextCompositionResultBuffer(); |
| |
| uint32_t hostDisplayId = 0; |
| // Drm info for the displays client target buffer. |
| std::unique_ptr<DrmBuffer> clientTargetDrmBuffer; |
| |
| private: |
| // Additional per display buffer for the composition result. |
| std::vector<std::unique_ptr<CompositionResultBuffer>> |
| compositionResultBuffers; |
| }; |
| |
| std::unordered_map<hwc2_display_t, HostComposerDisplayInfo> mDisplayInfos; |
| DrmPresenter* mDrmPresenter; |
| }; |
| |
| } // namespace android |
| |
| #endif |