ipa: rkisp1: Implement manual ColourCorrectionMatrix control

Add a manual ColourCorrectionMatrix control. This was already discussed
while implementing manual colour temperature but was never implemented.
The control allows to manually specify the CCM when AwbEnable is false.

Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/src/ipa/rkisp1/ipa_context.cpp b/src/ipa/rkisp1/ipa_context.cpp
index 1ee6aeb1..65096105 100644
--- a/src/ipa/rkisp1/ipa_context.cpp
+++ b/src/ipa/rkisp1/ipa_context.cpp
@@ -211,6 +211,17 @@ namespace libcamera::ipa::rkisp1 {
  */
 
 /**
+ * \var IPAActiveState::ccm
+ * \brief State for the Colour Correction Matrix algorithm
+ *
+ * \var IPAActiveState::ccm.manual
+ * \brief Manual CCM (set through requests)
+ *
+ * \var IPAActiveState::awb.automatic
+ * \brief Automatic CCM (computed by the algorithm)
+ */
+
+/**
  * \var IPAActiveState::cproc
  * \brief State for the Color Processing algorithm
  *
@@ -359,6 +370,14 @@ namespace libcamera::ipa::rkisp1 {
  */
 
 /**
+ * \var IPAFrameContext::ccm
+ * \brief Colour Correction Matrix parameters for this frame
+ *
+ * \struct IPAFrameContext::ccm.ccm
+ * \brief Colour Correction Matrix
+ */
+
+/**
  * \var IPAFrameContext::cproc
  * \brief Color Processing parameters for this frame
  *