| /* |
| * 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 "drm_hwcomposer.h" |
| #include "drmcomposition.h" |
| #include "drmcompositorworker.h" |
| #include "drmframebuffer.h" |
| |
| #include <pthread.h> |
| #include <queue> |
| #include <sstream> |
| |
| #include <hardware/hardware.h> |
| #include <hardware/hwcomposer.h> |
| |
| #define DRM_DISPLAY_BUFFERS 2 |
| |
| namespace android { |
| |
| class GLWorkerCompositor; |
| |
| class DrmDisplayCompositor { |
| public: |
| DrmDisplayCompositor(); |
| ~DrmDisplayCompositor(); |
| |
| int Init(DrmResources *drm, int display); |
| |
| int QueueComposition(std::unique_ptr<DrmDisplayComposition> composition); |
| int Composite(); |
| void Dump(std::ostringstream *out) const; |
| |
| bool HaveQueuedComposites() const; |
| |
| private: |
| DrmDisplayCompositor(const DrmDisplayCompositor &) = delete; |
| |
| // Set to 83ms (~12fps) which is somewhere between a reasonable amount of |
| // time to wait for a long render and a small enough delay to limit jank. |
| static const int kAcquireWaitTimeoutMs = 83; |
| |
| int ApplyPreComposite(DrmDisplayComposition *display_comp); |
| int ApplyFrame(DrmDisplayComposition *display_comp); |
| int ApplyDpms(DrmDisplayComposition *display_comp); |
| |
| DrmResources *drm_; |
| int display_; |
| |
| DrmCompositorWorker worker_; |
| |
| std::queue<std::unique_ptr<DrmDisplayComposition>> composite_queue_; |
| std::unique_ptr<DrmDisplayComposition> active_composition_; |
| |
| bool initialized_; |
| bool active_; |
| |
| DrmMode next_mode_; |
| bool needs_modeset_; |
| |
| int framebuffer_index_; |
| DrmFramebuffer framebuffers_[DRM_DISPLAY_BUFFERS]; |
| std::unique_ptr<GLWorkerCompositor> pre_compositor_; |
| |
| // mutable since we need to acquire in HaveQueuedComposites |
| mutable pthread_mutex_t lock_; |
| |
| // State tracking progress since our last Dump(). These are mutable since |
| // we need to reset them on every Dump() call. |
| mutable uint64_t dump_frames_composited_; |
| mutable uint64_t dump_last_timestamp_ns_; |
| }; |
| } |
| |
| #endif // ANDROID_DRM_DISPLAY_COMPOSITOR_H_ |