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authorUmang Jain <umang.jain@ideasonboard.com>2021-10-19 17:17:55 +0530
committerUmang Jain <umang.jain@ideasonboard.com>2021-10-19 19:15:30 +0530
commit573fcb94d6443d103ee7be84cdc8a04463692196 (patch)
tree65e5e05299d63adda9eb91230d256246dd31538f
parent1976179623b832052c37e577b2f375f569d28ab0 (diff)
android: camera_device: Create struct to track per stream buffer
The Camera3RequestDescriptor structure stores, for each stream, the camera3_stream_buffer_t and the libcamera FrameBuffer in two separate vectors. This complicates buffer handling, as the code needs to keep both vectors in sync. Create a new structure to group all data about per-stream buffers to simplify this. As a side effect, we need to create a local vector of camera3_stream_buffer_t in CameraDevice::sendCaptureResults() as the camera3_stream_buffer_t instances stored in the new structure in Camera3RequestDescriptor are not contiguous anymore. This is a small price to pay for easier handling of buffers, and will be refactored in subsequent commits anyway. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
-rw-r--r--src/android/camera_device.cpp75
-rw-r--r--src/android/camera_request.cpp9
-rw-r--r--src/android/camera_request.h15
3 files changed, 55 insertions, 44 deletions
diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp
index a8c66a79..74d9b952 100644
--- a/src/android/camera_device.cpp
+++ b/src/android/camera_device.cpp
@@ -802,9 +802,9 @@ void CameraDevice::abortRequest(Camera3RequestDescriptor *descriptor) const
notifyError(descriptor->frameNumber_, nullptr, CAMERA3_MSG_ERROR_REQUEST);
for (auto &buffer : descriptor->buffers_) {
- buffer.release_fence = buffer.acquire_fence;
- buffer.acquire_fence = -1;
- buffer.status = CAMERA3_BUFFER_STATUS_ERROR;
+ buffer.buffer.release_fence = buffer.buffer.acquire_fence;
+ buffer.buffer.acquire_fence = -1;
+ buffer.buffer.status = CAMERA3_BUFFER_STATUS_ERROR;
}
descriptor->status_ = Camera3RequestDescriptor::Status::Error;
@@ -902,8 +902,8 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques
LOG(HAL, Debug) << "Queueing request " << descriptor->request_->cookie()
<< " with " << descriptor->buffers_.size() << " streams";
- for (const auto &[i, camera3Buffer] : utils::enumerate(descriptor->buffers_)) {
- camera3_stream *camera3Stream = camera3Buffer.stream;
+ for (const auto &[i, buffer] : utils::enumerate(descriptor->buffers_)) {
+ camera3_stream *camera3Stream = buffer.buffer.stream;
CameraStream *cameraStream = static_cast<CameraStream *>(camera3Stream->priv);
std::stringstream ss;
@@ -920,7 +920,7 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques
* while fences for streams of type Internal and Mapped are
* handled at post-processing time.
*/
- FrameBuffer *buffer = nullptr;
+ FrameBuffer *frameBuffer = nullptr;
int acquireFence = -1;
switch (cameraStream->type()) {
case CameraStream::Type::Mapped:
@@ -938,13 +938,12 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques
* associate it with the Camera3RequestDescriptor for
* lifetime management only.
*/
- descriptor->frameBuffers_.push_back(
- createFrameBuffer(*camera3Buffer.buffer,
+ buffer.frameBuffer =
+ createFrameBuffer(*buffer.buffer.buffer,
cameraStream->configuration().pixelFormat,
- cameraStream->configuration().size));
-
- buffer = descriptor->frameBuffers_.back().get();
- acquireFence = camera3Buffer.acquire_fence;
+ cameraStream->configuration().size);
+ frameBuffer = buffer.frameBuffer.get();
+ acquireFence = buffer.buffer.acquire_fence;
LOG(HAL, Debug) << ss.str() << " (direct)";
break;
@@ -956,18 +955,18 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques
* The buffer has to be returned to the CameraStream
* once it has been processed.
*/
- buffer = cameraStream->getBuffer();
+ frameBuffer = cameraStream->getBuffer();
LOG(HAL, Debug) << ss.str() << " (internal)";
break;
}
- if (!buffer) {
- LOG(HAL, Error) << "Failed to create buffer";
+ if (!frameBuffer) {
+ LOG(HAL, Error) << "Failed to create frame buffer";
return -ENOMEM;
}
- descriptor->request_->addBuffer(cameraStream->stream(), buffer,
- acquireFence);
+ descriptor->request_->addBuffer(cameraStream->stream(),
+ frameBuffer, acquireFence);
}
/*
@@ -1054,9 +1053,9 @@ void CameraDevice::requestComplete(Request *request)
* The buffer status is set to OK and later changed to ERROR if
* post-processing/compression fails.
*/
- for (camera3_stream_buffer_t &buffer : descriptor->buffers_) {
+ for (auto &buffer : descriptor->buffers_) {
CameraStream *cameraStream =
- static_cast<CameraStream *>(buffer.stream->priv);
+ static_cast<CameraStream *>(buffer.buffer.stream->priv);
/*
* Streams of type Direct have been queued to the
@@ -1070,9 +1069,9 @@ void CameraDevice::requestComplete(Request *request)
* fence to -1 once it has handled it and remove this check.
*/
if (cameraStream->type() == CameraStream::Type::Direct)
- buffer.acquire_fence = -1;
- buffer.release_fence = -1;
- buffer.status = CAMERA3_BUFFER_STATUS_OK;
+ buffer.buffer.acquire_fence = -1;
+ buffer.buffer.release_fence = -1;
+ buffer.buffer.status = CAMERA3_BUFFER_STATUS_OK;
}
/*
@@ -1087,15 +1086,15 @@ void CameraDevice::requestComplete(Request *request)
notifyError(descriptor->frameNumber_, nullptr,
CAMERA3_MSG_ERROR_REQUEST);
- for (camera3_stream_buffer_t &buffer : descriptor->buffers_) {
+ for (auto &buffer : descriptor->buffers_) {
/*
* Signal to the framework it has to handle fences that
* have not been waited on by setting the release fence
* to the acquire fence value.
*/
- buffer.release_fence = buffer.acquire_fence;
- buffer.acquire_fence = -1;
- buffer.status = CAMERA3_BUFFER_STATUS_ERROR;
+ buffer.buffer.release_fence = buffer.buffer.acquire_fence;
+ buffer.buffer.acquire_fence = -1;
+ buffer.buffer.status = CAMERA3_BUFFER_STATUS_ERROR;
}
descriptor->status_ = Camera3RequestDescriptor::Status::Error;
@@ -1137,9 +1136,9 @@ void CameraDevice::requestComplete(Request *request)
}
/* Handle post-processing. */
- for (camera3_stream_buffer_t &buffer : descriptor->buffers_) {
+ for (auto &buffer : descriptor->buffers_) {
CameraStream *cameraStream =
- static_cast<CameraStream *>(buffer.stream->priv);
+ static_cast<CameraStream *>(buffer.buffer.stream->priv);
if (cameraStream->type() == CameraStream::Type::Direct)
continue;
@@ -1147,13 +1146,13 @@ void CameraDevice::requestComplete(Request *request)
FrameBuffer *src = request->findBuffer(cameraStream->stream());
if (!src) {
LOG(HAL, Error) << "Failed to find a source stream buffer";
- buffer.status = CAMERA3_BUFFER_STATUS_ERROR;
- notifyError(descriptor->frameNumber_, buffer.stream,
+ buffer.buffer.status = CAMERA3_BUFFER_STATUS_ERROR;
+ notifyError(descriptor->frameNumber_, buffer.buffer.stream,
CAMERA3_MSG_ERROR_BUFFER);
continue;
}
- int ret = cameraStream->process(*src, buffer, descriptor);
+ int ret = cameraStream->process(*src, buffer.buffer, descriptor);
/*
* Return the FrameBuffer to the CameraStream now that we're
@@ -1163,8 +1162,8 @@ void CameraDevice::requestComplete(Request *request)
cameraStream->putBuffer(src);
if (ret) {
- buffer.status = CAMERA3_BUFFER_STATUS_ERROR;
- notifyError(descriptor->frameNumber_, buffer.stream,
+ buffer.buffer.status = CAMERA3_BUFFER_STATUS_ERROR;
+ notifyError(descriptor->frameNumber_, buffer.buffer.stream,
CAMERA3_MSG_ERROR_BUFFER);
}
}
@@ -1190,10 +1189,16 @@ void CameraDevice::sendCaptureResults()
camera3_capture_result_t captureResult = {};
captureResult.frame_number = descriptor->frameNumber_;
+
if (descriptor->resultMetadata_)
captureResult.result = descriptor->resultMetadata_->get();
- captureResult.num_output_buffers = descriptor->buffers_.size();
- captureResult.output_buffers = descriptor->buffers_.data();
+
+ std::vector<camera3_stream_buffer_t> resultBuffers;
+ for (const auto &buffer : descriptor->buffers_)
+ resultBuffers.emplace_back(buffer.buffer);
+
+ captureResult.num_output_buffers = resultBuffers.size();
+ captureResult.output_buffers = resultBuffers.data();
if (descriptor->status_ == Camera3RequestDescriptor::Status::Success)
captureResult.partial_result = 1;
diff --git a/src/android/camera_request.cpp b/src/android/camera_request.cpp
index 16a632b3..614baed4 100644
--- a/src/android/camera_request.cpp
+++ b/src/android/camera_request.cpp
@@ -23,15 +23,10 @@ Camera3RequestDescriptor::Camera3RequestDescriptor(
/* Copy the camera3 request stream information for later access. */
const uint32_t numBuffers = camera3Request->num_output_buffers;
+
buffers_.resize(numBuffers);
for (uint32_t i = 0; i < numBuffers; i++)
- buffers_[i] = camera3Request->output_buffers[i];
-
- /*
- * FrameBuffer instances created by wrapping a camera3 provided dmabuf
- * are emplaced in this vector of unique_ptr<> for lifetime management.
- */
- frameBuffers_.reserve(numBuffers);
+ buffers_[i].buffer = camera3Request->output_buffers[i];
/* Clone the controls associated with the camera3 request. */
settings_ = CameraMetadata(camera3Request->settings);
diff --git a/src/android/camera_request.h b/src/android/camera_request.h
index db13f624..a030febf 100644
--- a/src/android/camera_request.h
+++ b/src/android/camera_request.h
@@ -29,6 +29,16 @@ public:
Error,
};
+ struct StreamBuffer {
+ camera3_stream_buffer_t buffer;
+ /*
+ * FrameBuffer instances created by wrapping a camera3 provided
+ * dmabuf are emplaced in this vector of unique_ptr<> for
+ * lifetime management.
+ */
+ std::unique_ptr<libcamera::FrameBuffer> frameBuffer;
+ };
+
Camera3RequestDescriptor(libcamera::Camera *camera,
const camera3_capture_request_t *camera3Request);
~Camera3RequestDescriptor();
@@ -36,8 +46,9 @@ public:
bool isPending() const { return status_ == Status::Pending; }
uint32_t frameNumber_ = 0;
- std::vector<camera3_stream_buffer_t> buffers_;
- std::vector<std::unique_ptr<libcamera::FrameBuffer>> frameBuffers_;
+
+ std::vector<StreamBuffer> buffers_;
+
CameraMetadata settings_;
std::unique_ptr<CaptureRequest> request_;
std::unique_ptr<CameraMetadata> resultMetadata_;

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