| /* |
| * Copyright (C) 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_DRM_DISPLAY_COMPOSITOR_H_ |
| #define ANDROID_DRM_DISPLAY_COMPOSITOR_H_ |
| |
| #include <hardware/hardware.h> |
| #include <hardware/hwcomposer.h> |
| #include <pthread.h> |
| |
| #include <functional> |
| #include <memory> |
| #include <sstream> |
| #include <tuple> |
| |
| #include "DrmDisplayComposition.h" |
| #include "Planner.h" |
| #include "drm/ResourceManager.h" |
| #include "drm/VSyncWorker.h" |
| #include "drmhwcomposer.h" |
| |
| namespace android { |
| |
| struct AtomicCommitArgs { |
| /* inputs. All fields are optional, but at least one has to be specified */ |
| bool test_only = false; |
| std::optional<DrmMode> display_mode; |
| std::optional<bool> active; |
| std::shared_ptr<DrmDisplayComposition> composition; |
| /* 'clear' should never be used together with 'composition' */ |
| bool clear_active_composition = false; |
| |
| /* out */ |
| UniqueFd out_fence; |
| |
| /* helpers */ |
| auto HasInputs() -> bool { |
| return display_mode || active || composition || clear_active_composition; |
| } |
| }; |
| |
| class DrmDisplayCompositor { |
| public: |
| DrmDisplayCompositor() = default; |
| ~DrmDisplayCompositor() = default; |
| auto Init(ResourceManager *resource_manager, int display) -> int; |
| |
| std::unique_ptr<DrmDisplayComposition> CreateInitializedComposition() const; |
| |
| auto ExecuteAtomicCommit(AtomicCommitArgs &args) -> int; |
| |
| private: |
| DrmDisplayCompositor(const DrmDisplayCompositor &) = delete; |
| |
| auto CommitFrame(AtomicCommitArgs &args) -> int; |
| |
| struct { |
| std::shared_ptr<DrmDisplayComposition> composition; |
| DrmModeUserPropertyBlobUnique mode_blob; |
| bool active_state{}; |
| } active_kms_data; |
| |
| ResourceManager *resource_manager_ = nullptr; |
| std::unique_ptr<Planner> planner_; |
| bool initialized_{}; |
| int display_ = -1; |
| }; |
| } // namespace android |
| |
| #endif // ANDROID_DRM_DISPLAY_COMPOSITOR_H_ |