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ipa: rpi: awb: Add an initialValues method

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This allows the IPA to get reasonable default colour gains before AWB
has run. This is particularly important on the PiSP platform where
these numbers are helpful in programming the Front End statistics
block in advance.

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
David Plowman 2023-12-06 10:38:39 +00:00 • committed by Kieran Bingham
parent 8892d937c5
commit cfb4bee74b
3 changed files with 8 additions and 0 deletions
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1
src/ipa/rpi/controller/awb_algorithm.h
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@ -16,6 +16,7 @@ public:
AwbAlgorithm(Controller *controller) : Algorithm(controller) {}
/* An AWB algorithm must provide the following: */
virtual unsigned int getConvergenceFrames() const = 0;
virtual void initialValues(double &gainR, double &gainB) = 0;
virtual void setMode(std::string const &modeName) = 0;
virtual void setManualGains(double manualR, double manualB) = 0;
virtual void enableAuto() = 0;

6
src/ipa/rpi/controller/rpi/awb.cpp
View file

@ -220,6 +220,12 @@ void Awb::initialise()
asyncResults_ = syncResults_;
}
void Awb::initialValues(double &gainR, double &gainB)
{
gainR = syncResults_.gainR;
gainB = syncResults_.gainB;
}
void Awb::disableAuto()
{
/* Freeze the most recent values, and treat them as manual gains */

1
src/ipa/rpi/controller/rpi/awb.h
View file

@ -95,6 +95,7 @@ public:
void initialise() override;
int read(const libcamera::YamlObject &params) override;
unsigned int getConvergenceFrames() const override;
void initialValues(double &gainR, double &gainB) override;
void setMode(std::string const &name) override;
void setManualGains(double manualR, double manualB) override;
void enableAuto() override;