ipa: ipu3: agc: Rename currentYGain

The "current" prefix in the currentYGain variable name is confusing:

- In Agc::estimateLuminance(), the variable contains the gain to be
  applied to the image, which is neither a "current" gain nor a "Y"
  gain. Rename it to "gain".

- In Agc::computeExposure(), the variable contains the gain computed by
  the relative luminance method, so rename it to "yGain".

While at it, rename variables to match the libcamera coding style.

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

1 files changed, 2 insertions, 2 deletions

diff --git a/src/ipa/ipu3/algorithms/agc.h b/src/ipa/ipu3/algorithms/agc.h
index 943c354a..0c868d67 100644
--- a/src/ipa/ipu3/algorithms/agc.h
+++ b/src/ipa/ipu3/algorithms/agc.h
@@ -34,11 +34,11 @@ private:
 	void measureBrightness(const ipu3_uapi_stats_3a *stats,
 			       const ipu3_uapi_grid_config &grid);
 	void filterExposure();
-	void computeExposure(IPAFrameContext &frameContext, double currentYGain);
+	void computeExposure(IPAFrameContext &frameContext, double yGain);
 	double estimateLuminance(IPAFrameContext &frameContext,
 				 const ipu3_uapi_grid_config &grid,
 				 const ipu3_uapi_stats_3a *stats,
-				 double currentYGain);
+				 double gain);
 
 	uint64_t frameCount_;