122 lines
4.8 KiB
C++
122 lines
4.8 KiB
C++
/*
|
|
* Copyright (C) 2019 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 HARDWARE_GOOGLE_CAMERA_HAL_UTILS_ZSL_RESULT_DISPATCHER_H_
|
|
#define HARDWARE_GOOGLE_CAMERA_HAL_UTILS_ZSL_RESULT_DISPATCHER_H_
|
|
|
|
#include <map>
|
|
#include <thread>
|
|
|
|
#include "hal_types.h"
|
|
#include "result_dispatcher.h"
|
|
|
|
namespace android {
|
|
namespace google_camera_hal {
|
|
|
|
// ZslResultDispatcher dispatches capture results of zsl requests and none-zsl
|
|
// requests in the order of frame numbers, including result metadata, shutters,
|
|
// and stream buffers.
|
|
//
|
|
// The client can add results and shutters via AddResult() and AddShutter() in
|
|
// any order. ZslResultDispatcher will invoke ProcessCaptureResultFunc and
|
|
// NotifyFunc to notify result metadata, shutters, and stream buffers in the
|
|
// in the order of increasing frame numbers.
|
|
class ZslResultDispatcher {
|
|
public:
|
|
// Create a ZslResultDispatcher.
|
|
// partial_result_count is the partial result count.
|
|
// process_capture_result is the function to notify capture results.
|
|
// notify is the function to notify shutter messages.
|
|
// Treat ZSL requests and normal requests separately.
|
|
// For ZSL requests, it returns zsl shutter and zsl results in order
|
|
// and is not blocked by normal shutter and results.
|
|
// stream_config is the session stream configuration.
|
|
static std::unique_ptr<ZslResultDispatcher> Create(
|
|
uint32_t partial_result_count,
|
|
ProcessCaptureResultFunc process_capture_result, NotifyFunc notify,
|
|
const StreamConfiguration& stream_config);
|
|
|
|
virtual ~ZslResultDispatcher() = default;
|
|
|
|
// Add a pending request. This tells ZslResultDispatcher to watch for
|
|
// the shutter, result metadata, and stream buffers for this request,
|
|
// that will be added later via AddResult() and AddShutter().
|
|
// Treat the request as zsl request if is_zsl_request is true
|
|
status_t AddPendingRequest(const CaptureRequest& pending_request,
|
|
bool is_zsl_request);
|
|
|
|
// Add a ready result. If the result doesn't belong to a pending request that
|
|
// was previously added via AddPendingRequest(), an error will be returned.
|
|
status_t AddResult(std::unique_ptr<CaptureResult> result);
|
|
|
|
// Add a shutter for a frame number. If the frame number doesn't belong to a
|
|
// pending request that was previously added via AddPendingRequest(), an error
|
|
// will be returned.
|
|
status_t AddShutter(uint32_t frame_number, int64_t timestamp_ns,
|
|
int64_t readout_timestamp_ns);
|
|
|
|
// Add an error notification for a frame number. When this is called, we no
|
|
// longer wait for a shutter message or result metadata for the given frame.
|
|
status_t AddError(const ErrorMessage& error);
|
|
|
|
// Remove a pending request.
|
|
void RemovePendingRequest(uint32_t frame_number);
|
|
|
|
protected:
|
|
ZslResultDispatcher(ProcessCaptureResultFunc process_capture_result,
|
|
NotifyFunc notify);
|
|
|
|
private:
|
|
status_t Initialize(uint32_t partial_result_count,
|
|
const StreamConfiguration& stream_config);
|
|
|
|
// Invoked when receiving a result from ResultDispatcher class.
|
|
void ProcessCaptureResult(std::unique_ptr<CaptureResult> result);
|
|
|
|
// Invoked when receiving a message from ResultDispatcher.
|
|
void NotifyHalMessage(const NotifyMessage& message);
|
|
|
|
// Return true if this frame is zsl request.
|
|
bool IsZslFrame(uint32_t frame_number);
|
|
|
|
std::unique_ptr<ResultDispatcher> normal_result_dispatcher_;
|
|
std::unique_ptr<ResultDispatcher> zsl_result_dispatcher_;
|
|
|
|
std::mutex process_capture_result_lock_;
|
|
// The following callbacks must be protected by process_capture_result_lock_.
|
|
// Pass this callback function to ResultDispatcher class
|
|
ProcessCaptureResultFunc process_capture_result_;
|
|
|
|
std::mutex result_lock_;
|
|
// The following callbacks must be protected by result_lock_.
|
|
// Pass this callback function to ResultDispatcher class
|
|
NotifyFunc notify_;
|
|
|
|
// Record the callback function for framework callback
|
|
ProcessCaptureResultFunc device_session_process_capture_result_;
|
|
NotifyFunc device_session_notify_;
|
|
|
|
std::mutex zsl_frames_lock_;
|
|
// Store the frame number of zsl requests
|
|
// Protected by zsl_frames_lock_.
|
|
std::vector<uint32_t> zsl_frames_;
|
|
};
|
|
|
|
} // namespace google_camera_hal
|
|
} // namespace android
|
|
|
|
#endif // HARDWARE_GOOGLE_CAMERA_HAL_UTILS_ZSL_RESULT_DISPATCHER_H_
|