| // Copyright 2022 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_CAMERA_DRIVERS_CONTROLLER_PASSTHROUGH_NODE_H_ |
| #define SRC_CAMERA_DRIVERS_CONTROLLER_PASSTHROUGH_NODE_H_ |
| |
| #include <fuchsia/camera2/cpp/fidl.h> |
| #include <fuchsia/hardware/ge2d/cpp/banjo.h> |
| |
| #include <utility> |
| |
| #include "src/camera/drivers/controller/memory_allocation.h" |
| #include "src/camera/drivers/controller/processing_node.h" |
| #include "src/camera/drivers/controller/stream_pipeline_info.h" |
| #include "src/camera/drivers/controller/util.h" |
| |
| // |PassthroughNode| performs no operations aside from dropping frames. It is used to synchronize |
| // the phase of multiple lower-framerate consumers. |
| namespace camera { |
| |
| class PassthroughNode : public ProcessNode { |
| public: |
| PassthroughNode(async_dispatcher_t* dispatcher, BufferAttachments attachments, |
| FrameCallback frame_callback, |
| const camera::InternalConfigNode& internal_passthrough_node); |
| static fpromise::result<std::unique_ptr<PassthroughNode>, zx_status_t> Create( |
| async_dispatcher_t* dispatcher, BufferAttachments attachments, FrameCallback frame_callback, |
| const InternalConfigNode& internal_passthrough_node, const StreamCreationData& info); |
| |
| private: |
| // ProcessNode method implementations. |
| void ProcessFrame(FrameToken token, frame_metadata_t metadata) override; |
| void SetOutputFormat(uint32_t output_format_index, fit::closure callback) override; |
| void ShutdownImpl(fit::closure callback) override; |
| |
| // fuchsia.hardware.camerahwaccel.*Callback implementations. |
| void HwFrameReady(frame_available_info_t info) override; |
| void HwFrameResolutionChanged(frame_available_info_t info) override; |
| void HwTaskRemoved(task_remove_status_t status) override; |
| }; |
| |
| } // namespace camera |
| |
| #endif // SRC_CAMERA_DRIVERS_CONTROLLER_PASSTHROUGH_NODE_H_ |