libcamera: ipa: raspberrypi: Allow SwitchMode method to return camera settings

This commit adds a Metadata parameter to the SwitchMode method
enabling it to return camera and other settings to the caller
(usually the configure method, just after the camera mode has been
selected).

In future this will allow the Raspberry Pi IPAs to take those settings
(such as exposure and analogue gain) and program them directly into
the camera or ISP before the camera is even started.

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/ipa/raspberrypi/controller/algorithm.cpp b/src/ipa/raspberrypi/controller/algorithm.cpp
index 9bd3df86..55cb2012 100644
--- a/src/ipa/raspberrypi/controller/algorithm.cpp
+++ b/src/ipa/raspberrypi/controller/algorithm.cpp
@@ -16,9 +16,10 @@ void Algorithm::Read(boost::property_tree::ptree const &params)
 
 void Algorithm::Initialise() {}
 
-void Algorithm::SwitchMode(CameraMode const &camera_mode)
+void Algorithm::SwitchMode(CameraMode const &camera_mode, Metadata *metadata)
 {
 	(void)camera_mode;
+	(void)metadata;
 }
 
 void Algorithm::Prepare(Metadata *image_metadata)