ipa: raspberrypi: Add hardware configuration to the controller

Add a new Controller::HardwareConfig structure that captures the
hardware statistics grid/histogram sizes and pipeline widths. This
ensures there is a single centralised places for these parameters.

Add a getHardwareConfig() helper function to retrieve these values for a
given hardware target.

Update the statistics populating routine in the IPA to use the values
from this structure instead of the hardcoded numbers.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/ipa/raspberrypi/controller/controller.h b/src/ipa/raspberrypi/controller/controller.h
index 24e02903..c6af5cd6 100644
--- a/src/ipa/raspberrypi/controller/controller.h
+++ b/src/ipa/raspberrypi/controller/controller.h
@@ -37,6 +37,16 @@ typedef std::unique_ptr<Algorithm> AlgorithmPtr;
 class Controller
 {
 public:
+	struct HardwareConfig {
+		libcamera::Size agcRegions;
+		libcamera::Size agcZoneWeights;
+		libcamera::Size awbRegions;
+		libcamera::Size focusRegions;
+		unsigned int numHistogramBins;
+		unsigned int numGammaPoints;
+		unsigned int pipelineWidth;
+	};
+
 	Controller();
 	~Controller();
 	int read(char const *filename);
@@ -47,6 +57,7 @@ public:
 	Metadata &getGlobalMetadata();
 	Algorithm *getAlgorithm(std::string const &name) const;
 	const std::string &getTarget() const;
+	const HardwareConfig &getHardwareConfig() const;
 
 protected:
 	int createAlgorithm(const std::string &name, const libcamera::YamlObject &params);