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/*
* Copyright (C) 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.
*/
//#define LOG_NDEBUG 0
#include "system/graphics-base-v1.0.h"
#define LOG_TAG "GCH_SnapshotRequestProcessor"
#define ATRACE_TAG ATRACE_TAG_CAMERA
#include <log/log.h>
#include <utils/Trace.h>
#include "snapshot_request_processor.h"
#include "vendor_tag_defs.h"
namespace android {
namespace google_camera_hal {
std::unique_ptr<SnapshotRequestProcessor> SnapshotRequestProcessor::Create(
CameraDeviceSessionHwl* device_session_hwl,
HwlSessionCallback session_callback, int32_t yuv_stream_id) {
ATRACE_CALL();
if (device_session_hwl == nullptr) {
ALOGE("%s: device_session_hwl (%p) is nullptr", __FUNCTION__,
device_session_hwl);
return nullptr;
}
auto request_processor = std::unique_ptr<SnapshotRequestProcessor>(
new SnapshotRequestProcessor(session_callback));
if (request_processor == nullptr) {
ALOGE("%s: Creating SnapshotRequestProcessor failed.", __FUNCTION__);
return nullptr;
}
status_t res =
request_processor->Initialize(device_session_hwl, yuv_stream_id);
if (res != OK) {
ALOGE("%s: Initializing SnapshotRequestProcessor failed: %s (%d).",
__FUNCTION__, strerror(-res), res);
return nullptr;
}
return request_processor;
}
status_t SnapshotRequestProcessor::Initialize(
CameraDeviceSessionHwl* device_session_hwl, int32_t yuv_stream_id) {
ATRACE_CALL();
std::unique_ptr<HalCameraMetadata> characteristics;
status_t res = device_session_hwl->GetCameraCharacteristics(&characteristics);
if (res != OK) {
ALOGE("%s: GetCameraCharacteristics failed.", __FUNCTION__);
return BAD_VALUE;
}
camera_metadata_ro_entry entry;
res = characteristics->Get(
ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE, &entry);
if (res == OK) {
active_array_width_ = entry.data.i32[2];
active_array_height_ = entry.data.i32[3];
ALOGI("%s Active size (%d x %d).", __FUNCTION__, active_array_width_,
active_array_height_);
} else {
ALOGE("%s Get active size failed: %s (%d).", __FUNCTION__, strerror(-res),
res);
return res;
}
yuv_stream_id_ = yuv_stream_id;
return OK;
}
status_t SnapshotRequestProcessor::ConfigureStreams(
InternalStreamManager* internal_stream_manager,
const StreamConfiguration& stream_config,
StreamConfiguration* process_block_stream_config) {
ATRACE_CALL();
if (process_block_stream_config == nullptr ||
internal_stream_manager == nullptr) {
ALOGE(
"%s: process_block_stream_config (%p) is nullptr or "
"internal_stream_manager (%p) is nullptr",
__FUNCTION__, process_block_stream_config, internal_stream_manager);
return BAD_VALUE;
}
internal_stream_manager_ = internal_stream_manager;
Stream yuv_stream;
yuv_stream.stream_type = StreamType::kInput;
yuv_stream.width = active_array_width_;
yuv_stream.height = active_array_height_;
yuv_stream.format = HAL_PIXEL_FORMAT_YCBCR_420_888;
yuv_stream.usage = 0;
yuv_stream.rotation = StreamRotation::kRotation0;
yuv_stream.data_space = HAL_DATASPACE_ARBITRARY;
// Set id back to yuv_stream and then HWL can get correct HAL stream ID
yuv_stream.id = yuv_stream_id_;
process_block_stream_config->streams = stream_config.streams;
// Add internal yuv stream
process_block_stream_config->streams.push_back(yuv_stream);
process_block_stream_config->operation_mode = stream_config.operation_mode;
process_block_stream_config->session_params =
HalCameraMetadata::Clone(stream_config.session_params.get());
process_block_stream_config->stream_config_counter =
stream_config.stream_config_counter;
return OK;
}
status_t SnapshotRequestProcessor::SetProcessBlock(
std::unique_ptr<ProcessBlock> process_block) {
ATRACE_CALL();
if (process_block == nullptr) {
ALOGE("%s: process_block is nullptr", __FUNCTION__);
return BAD_VALUE;
}
std::lock_guard<std::mutex> lock(process_block_lock_);
if (process_block_ != nullptr) {
ALOGE("%s: Already configured.", __FUNCTION__);
return ALREADY_EXISTS;
}
process_block_ = std::move(process_block);
return OK;
}
bool SnapshotRequestProcessor::IsReadyForNextRequest() {
ATRACE_CALL();
if (internal_stream_manager_ == nullptr) {
ALOGW("%s: internal_stream_manager_ nullptr", __FUNCTION__);
return false;
}
if (internal_stream_manager_->IsPendingBufferEmpty(yuv_stream_id_) == false) {
return false;
}
return true;
}
status_t SnapshotRequestProcessor::ProcessRequest(const CaptureRequest& request) {
ATRACE_CALL();
std::lock_guard<std::mutex> lock(process_block_lock_);
if (process_block_ == nullptr) {
ALOGE("%s: Not configured yet.", __FUNCTION__);
return NO_INIT;
}
if (IsReadyForNextRequest() == false) {
return BAD_VALUE;
}
CaptureRequest block_request;
block_request.frame_number = request.frame_number;
block_request.settings = HalCameraMetadata::Clone(request.settings.get());
for (const auto& output_buffer : request.output_buffers) {
session_callback_.request_stream_buffers(
output_buffer.stream_id, /*buffer_sizes=*/1,
&block_request.output_buffers, request.frame_number);
}
for (auto& [camera_id, physical_metadata] : request.physical_camera_settings) {
block_request.physical_camera_settings[camera_id] =
HalCameraMetadata::Clone(physical_metadata.get());
}
// Get multiple yuv buffer and metadata from internal stream as input
status_t result = internal_stream_manager_->GetMostRecentStreamBuffer(
yuv_stream_id_, &(block_request.input_buffers),
&(block_request.input_buffer_metadata), /*payload_frames=*/kZslBufferSize);
if (result != OK) {
ALOGE("%s: frame:%d GetStreamBuffer failed.", __FUNCTION__,
request.frame_number);
session_callback_.return_stream_buffers(block_request.output_buffers);
return UNKNOWN_ERROR;
}
// TODO(mhtan): may need to remove some metadata here.
std::vector<ProcessBlockRequest> block_requests(1);
block_requests[0].request = std::move(block_request);
ALOGD("%s: frame number %u is a snapshot request.", __FUNCTION__,
request.frame_number);
result = process_block_->ProcessRequests(block_requests, request);
if (result != OK) {
session_callback_.return_stream_buffers(
block_requests[0].request.output_buffers);
}
return result;
}
status_t SnapshotRequestProcessor::Flush() {
ATRACE_CALL();
std::lock_guard<std::mutex> lock(process_block_lock_);
if (process_block_ == nullptr) {
return OK;
}
return process_block_->Flush();
}
} // namespace google_camera_hal
} // namespace android
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