ipa: rkisp1: Use frame number passed to Algorithm::prepare()

Now that the Algorithm::prepare() function takes a frame number, we can
use it to replace the IPAActiveState::frameCount member.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

src/ipa/rkisp1/algorithms/agc.cpp

@@ -327,12 +327,11 @@ void Agc::process(IPAContext &context, [[maybe_unused]] const uint32_t frame,
 /**
  * \copydoc libcamera::ipa::Algorithm::prepare
  */
-void Agc::prepare(IPAContext &context,
+void Agc::prepare(IPAContext &context, const uint32_t frame,
-		  [[maybe_unused]] const uint32_t frame,
 		  [[maybe_unused]] IPAFrameContext &frameContext,
 		  rkisp1_params_cfg *params)
 {
-	if (context.activeState.frameCount > 0)
+	if (frame > 0)
 		return;
 
 	/* Configure the measurement window. */

src/ipa/rkisp1/algorithms/awb.cpp

@@ -74,8 +74,7 @@ uint32_t Awb::estimateCCT(double red, double green, double blue)
 /**
  * \copydoc libcamera::ipa::Algorithm::prepare
  */
-void Awb::prepare(IPAContext &context,
+void Awb::prepare(IPAContext &context, const uint32_t frame,
-		  [[maybe_unused]] const uint32_t frame,
 		  [[maybe_unused]] IPAFrameContext &frameContext,
 		  rkisp1_params_cfg *params)
 {
@@ -88,7 +87,7 @@ void Awb::prepare(IPAContext &context,
 	params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_AWB_GAIN;
 
 	/* If we already have configured the gains and window, return. */
-	if (context.activeState.frameCount > 0)
+	if (frame > 0)
 		return;
 
 	/* Configure the gains to apply. */

src/ipa/rkisp1/algorithms/blc.cpp

@@ -65,12 +65,12 @@ int BlackLevelCorrection::init([[maybe_unused]] IPAContext &context,
 /**
  * \copydoc libcamera::ipa::Algorithm::prepare
  */
-void BlackLevelCorrection::prepare(IPAContext &context,
+void BlackLevelCorrection::prepare([[maybe_unused]] IPAContext &context,
-				   [[maybe_unused]] const uint32_t frame,
+				   const uint32_t frame,
 				   [[maybe_unused]] IPAFrameContext &frameContext,
 				   rkisp1_params_cfg *params)
 {
-	if (context.activeState.frameCount > 0)
+	if (frame > 0)
 		return;
 
 	if (!tuningParameters_)

src/ipa/rkisp1/algorithms/dpcc.cpp

@@ -231,12 +231,12 @@ int DefectPixelClusterCorrection::init([[maybe_unused]] IPAContext &context,
 /**
  * \copydoc libcamera::ipa::Algorithm::prepare
  */
-void DefectPixelClusterCorrection::prepare(IPAContext &context,
+void DefectPixelClusterCorrection::prepare([[maybe_unused]] IPAContext &context,
-					   [[maybe_unused]] const uint32_t frame,
+					   const uint32_t frame,
 					   [[maybe_unused]] IPAFrameContext &frameContext,
 					   rkisp1_params_cfg *params)
 {
-	if (context.activeState.frameCount > 0)
+	if (frame > 0)
 		return;
 
 	if (!initialized_)

src/ipa/rkisp1/algorithms/dpf.cpp

@@ -207,7 +207,7 @@ void Dpf::queueRequest(IPAContext &context,
 /**
  * \copydoc libcamera::ipa::Algorithm::prepare
  */
-void Dpf::prepare(IPAContext &context, [[maybe_unused]] const uint32_t frame,
+void Dpf::prepare(IPAContext &context, const uint32_t frame,
 		  [[maybe_unused]] IPAFrameContext &frameContext,
 		  rkisp1_params_cfg *params)
 {
@@ -216,7 +216,7 @@ void Dpf::prepare(IPAContext &context, [[maybe_unused]] const uint32_t frame,
 
 	auto &dpf = context.activeState.dpf;
 
-	if (context.activeState.frameCount == 0) {
+	if (frame == 0) {
 		params->others.dpf_config = config_;
 		params->others.dpf_strength_config = strengthConfig_;
 

src/ipa/rkisp1/algorithms/gsl.cpp

@@ -118,12 +118,12 @@ int GammaSensorLinearization::init([[maybe_unused]] IPAContext &context,
 /**
  * \copydoc libcamera::ipa::Algorithm::prepare
  */
-void GammaSensorLinearization::prepare(IPAContext &context,
+void GammaSensorLinearization::prepare([[maybe_unused]] IPAContext &context,
-				       [[maybe_unused]] const uint32_t frame,
+				       const uint32_t frame,
 				       [[maybe_unused]] IPAFrameContext &frameContext,
 				       rkisp1_params_cfg *params)
 {
-	if (context.activeState.frameCount > 0)
+	if (frame > 0)
 		return;
 
 	if (!initialized_)

src/ipa/rkisp1/algorithms/lsc.cpp

@@ -132,12 +132,11 @@ int LensShadingCorrection::configure(IPAContext &context,
 /**
  * \copydoc libcamera::ipa::Algorithm::prepare
  */
-void LensShadingCorrection::prepare(IPAContext &context,
+void LensShadingCorrection::prepare(IPAContext &context, const uint32_t frame,
-				    [[maybe_unused]] const uint32_t frame,
 				    [[maybe_unused]] IPAFrameContext &frameContext,
 				    rkisp1_params_cfg *params)
 {
-	if (context.activeState.frameCount > 0)
+	if (frame > 0)
 		return;
 
 	if (!initialized_)

src/ipa/rkisp1/ipa_context.cpp

@@ -192,15 +192,6 @@ namespace libcamera::ipa::rkisp1 {
  * \brief Analogue gain multiplier
  */
 
-/**
- * \var IPAActiveState::frameCount
- * \brief Counter of requests queued to the IPA module
- *
- * The counter is reset to 0 when the IPA module is configured, and is
- * incremented for each request being queued, after calling the
- * Algorithm::prepare() function of all algorithms.
- */
-
 /**
  * \struct IPAFrameContext
  * \brief Per-frame context for algorithms

src/ipa/rkisp1/ipa_context.h

@@ -87,8 +87,6 @@ struct IPAActiveState {
 		uint32_t exposure;
 		double gain;
 	} sensor;
-
-	unsigned int frameCount;
 };
 
 struct IPAFrameContext : public FrameContext {

src/ipa/rkisp1/rkisp1.cpp

@@ -260,8 +260,6 @@ int IPARkISP1::configure([[maybe_unused]] const IPACameraSensorInfo &info,
 	context_.configuration.agc.minAnalogueGain = camHelper_->gain(minGain);
 	context_.configuration.agc.maxAnalogueGain = camHelper_->gain(maxGain);
 
-	context_.activeState.frameCount = 0;
-
 	for (auto const &algo : algorithms()) {
 		int ret = algo->configure(context_, info);
 		if (ret)
@@ -324,7 +322,6 @@ void IPARkISP1::fillParamsBuffer(const uint32_t frame, const uint32_t bufferId)
 		algo->prepare(context_, frame, frameContext, params);
 
 	paramsBufferReady.emit(frame);
-	context_.activeState.frameCount++;
 }
 
 void IPARkISP1::processStatsBuffer(const uint32_t frame, const uint32_t bufferId,