qcam: Add RAW capture support

Add a toolbar button that captures RAW data to disk. The button is only
enabled if the camera is configured to provide a raw stream to the
application.

Only when the capture action is triggered will a request with a raw
buffer be queued to the camera.

Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/qcam/main_window.h b/src/qcam/main_window.h
index 4856ecc1..295ecc53 100644
--- a/src/qcam/main_window.h
+++ b/src/qcam/main_window.h
@@ -55,6 +55,8 @@ private Q_SLOTS:
 	void toggleCapture(bool start);
 
 	void saveImageAs();
+	void captureRaw();
+	void processRaw(FrameBuffer *buffer);
 
 	void queueRequest(FrameBuffer *buffer);
 
@@ -75,6 +77,7 @@ private:
 	QToolBar *toolbar_;
 	QAction *startStopAction_;
 	QComboBox *cameraCombo_;
+	QAction *saveRaw_;
 	ViewFinder *viewfinder_;
 
 	QIcon iconPlay_;
@@ -96,6 +99,7 @@ private:
 
 	/* Capture state, buffers queue and statistics */
 	bool isCapturing_;
+	bool captureRaw_;
 	Stream *vfStream_;
 	Stream *rawStream_;
 	std::map<Stream *, QQueue<FrameBuffer *>> freeBuffers_;