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android: camera_device: Use CameraStream buffers

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Now that CameraStream that require internal memory allocation
have been instrumented with a FrameBuffer pool, use them to create
intermediate buffers in the CameraDevice.

Reviewed-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
This commit is contained in:
Jacopo Mondi 2020-09-04 17:45:39 +02:00
parent b84e35dc97
commit de8304b116
1 changed files with 41 additions and 10 deletions
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51
src/android/camera_device.cpp
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@ -1387,24 +1387,48 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques
descriptor->buffers[i].stream = camera3Buffers[i].stream;
descriptor->buffers[i].buffer = camera3Buffers[i].buffer;
/* Software streams are handled after hardware streams complete. */
if (cameraStream->camera3Stream().format == HAL_PIXEL_FORMAT_BLOB)
/*
* Inspect the camera stream type, create buffers opportunely
* and add them to the Request if required.
*/
FrameBuffer *buffer = nullptr;
switch (cameraStream->type()) {
case CameraStream::Type::Mapped:
/*
* Mapped streams don't need buffers added to the
* Request.
*/
continue;
/*
* Create a libcamera buffer using the dmabuf descriptors of
* the camera3Buffer for each stream. The FrameBuffer is
* directly associated with the Camera3RequestDescriptor for
* lifetime management only.
*/
FrameBuffer *buffer = createFrameBuffer(*camera3Buffers[i].buffer);
case CameraStream::Type::Direct:
/*
* Create a libcamera buffer using the dmabuf
* descriptors of the camera3Buffer for each stream and
* associate it with the Camera3RequestDescriptor for
* lifetime management only.
*/
buffer = createFrameBuffer(*camera3Buffers[i].buffer);
descriptor->frameBuffers.emplace_back(buffer);
break;
case CameraStream::Type::Internal:
/*
* Get the frame buffer from the CameraStream internal
* buffer pool.
*
* The buffer has to be returned to the CameraStream
* once it has been processed.
*/
buffer = cameraStream->getBuffer();
break;
}
if (!buffer) {
LOG(HAL, Error) << "Failed to create buffer";
delete request;
delete descriptor;
return -ENOMEM;
}
descriptor->frameBuffers.emplace_back(buffer);
request->addBuffer(cameraStream->stream(), buffer);
}
@ -1476,6 +1500,13 @@ void CameraDevice::requestComplete(Request *request)
status = CAMERA3_BUFFER_STATUS_ERROR;
continue;
}
/*
* Return the FrameBuffer to the CameraStream now that we're
* done processing it.
*/
if (cameraStream->type() == CameraStream::Type::Internal)
cameraStream->putBuffer(buffer);
}
/* Prepare to call back the Android camera stack. */