| /* |
| * 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 "Common.h" |
| #include "Composer.h" |
| #include "DrmPresenter.h" |
| #include "HostConnection.h" |
| |
| namespace android { |
| |
| class HostComposer : public Composer { |
| public: |
| HostComposer() = default; |
| |
| HostComposer(const HostComposer&) = delete; |
| HostComposer& operator=(const HostComposer&) = delete; |
| |
| HostComposer(HostComposer&&) = delete; |
| HostComposer& operator=(HostComposer&&) = delete; |
| |
| HWC2::Error init(const HotplugCallback& cb) override; |
| |
| HWC2::Error createDisplays( |
| Device* device, |
| const AddDisplayToDeviceFunction& addDisplayToDeviceFn) override; |
| |
| HWC2::Error createDisplay( |
| Device* device, uint32_t displayId, uint32_t width, uint32_t height, |
| uint32_t dpiX, uint32_t dpiY, uint32_t refreshRateHz, |
| const AddDisplayToDeviceFunction& addDisplayToDeviceFn) 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. |
| HWC2::Error presentDisplay(Display* display, |
| int32_t* outPresentFence) override; |
| |
| private: |
| HWC2::Error createPrimaryDisplay( |
| Device* device, const AddDisplayToDeviceFunction& addDisplayToDeviceFn); |
| |
| HWC2::Error createSecondaryDisplays( |
| Device* device, const AddDisplayToDeviceFunction& addDisplayToDeviceFn); |
| |
| HWC2::Error createHostComposerDisplayInfo(Display* display, |
| uint32_t hostDisplayId); |
| |
| void post(HostConnection* hostCon, ExtendedRCEncoderContext* rcEnc, |
| buffer_handle_t h); |
| |
| bool mIsMinigbm = false; |
| |
| bool mUseAngle = false; |
| |
| int mSyncDeviceFd = -1; |
| |
| struct HostComposerDisplayInfo { |
| uint32_t hostDisplayId = 0; |
| |
| // Additional per display buffer for the composition result. |
| const native_handle_t* compositionResultBuffer = nullptr; |
| |
| // Drm info for the additional composition result buffer. |
| std::unique_ptr<DrmBuffer> compositionResultDrmBuffer; |
| |
| // Drm info for the displays client target buffer. |
| std::unique_ptr<DrmBuffer> clientTargetDrmBuffer; |
| }; |
| |
| std::unordered_map<hwc2_display_t, HostComposerDisplayInfo> mDisplayInfos; |
| |
| DrmPresenter mDrmPresenter; |
| }; |
| |
| } // namespace android |
| |
| #endif |