android: camera_device: Generate RAW resolutions

The resolutions supported for the RAW formats cannot be tested from
a list of known sizes like the processed ones. This is mainly due to the
fact RAW streams are produced by capturing frames at the CSI-2 receiver
output and their size corresponds to the sensor's native sizes.

In order to obtain the RAW frame size generate a temporary
CameraConfiguration for the Role::StillCaptureRAW role and inspect the
map of StreamFormats returned by the pipeline handler.

Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>

src/android/camera_device.h

@@ -97,6 +97,8 @@ private:
 	getYUVResolutions(libcamera::CameraConfiguration *cameraConfig,
 			  const libcamera::PixelFormat &pixelFormat,
 			  const std::vector<libcamera::Size> &resolutions);
+	std::vector<libcamera::Size>
+	getRawResolutions(const libcamera::PixelFormat &pixelFormat);
 
 	std::tuple<uint32_t, uint32_t> calculateStaticMetadataSize();
 	libcamera::FrameBuffer *createFrameBuffer(const buffer_handle_t camera3buffer);