ipa: ipu3: Introduce a modular tone mapping algorithm

Introduce a new algorithm to manage the tone mapping handling of the
IPU3.

The initial algorithm is chosen to configure the gamma contrast curve
which moves the implementation out of AWB for simplicity. As it is
initialised with a default gamma value of 1.1, there is no need to use
the default table at initialisation anymore.

This demonstrates the way to use process() call when the EventStatReady
comes in. The function calculates the LUT in the context of a frame, and
when prepare() is called, the parameters are filled with the updated
values.

AGC is modified to take the new process interface into account.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ipa/ipu3/ipu3_awb.h b/src/ipa/ipu3/ipu3_awb.h
index ea2d4320..eeb2920b 100644
--- a/src/ipa/ipu3/ipu3_awb.h
+++ b/src/ipa/ipu3/ipu3_awb.h
@@ -31,7 +31,7 @@ public:
 
 	void initialise(ipu3_uapi_params &params, const Size &bdsOutputSize, struct ipu3_uapi_grid_config &bdsGrid);
 	void calculateWBGains(const ipu3_uapi_stats_3a *stats);
-	void updateWbParameters(ipu3_uapi_params &params, double agcGamma);
+	void updateWbParameters(ipu3_uapi_params &params);
 
 	struct Ipu3AwbCell {
 		unsigned char greenRedAvg;