1 files changed, 55 insertions, 3 deletions

diff --git a/src/ipa/rkisp1/algorithms/cproc.cpp b/src/ipa/rkisp1/algorithms/cproc.cpp
index 68bb8180..18c7b719 100644
--- a/src/ipa/rkisp1/algorithms/cproc.cpp
+++ b/src/ipa/rkisp1/algorithms/cproc.cpp
@@ -33,6 +33,55 @@ namespace ipa::rkisp1::algorithms {
 
 LOG_DEFINE_CATEGORY(RkISP1CProc)
 
+constexpr float kDefaultBrightness = 0.0f;
+constexpr float kDefaultContrast = 1.0f;
+constexpr float kDefaultSaturation = 1.0f;
+
+static int convertBrightness(const float v)
+{
+	return std::clamp<int>(std::lround(v * 128), -128, 127);
+}
+
+static int convertContrast(const float v)
+{
+	return std::clamp<int>(std::lround(v * 128), 0, 255);
+}
+
+static int convertSaturation(const float v)
+{
+	return std::clamp<int>(std::lround(v * 128), 0, 255);
+}
+
+/**
+ * \copydoc libcamera::ipa::Algorithm::init
+ */
+int ColorProcessing::init([[maybe_unused]] IPAContext &context,
+			  [[maybe_unused]] const YamlObject &tuningData)
+{
+	auto &cmap = context.ctrlMap;
+
+	cmap[&controls::Brightness] = ControlInfo(-1.0f, 0.993f, kDefaultBrightness);
+	cmap[&controls::Contrast] = ControlInfo(0.0f, 1.993f, kDefaultContrast);
+	cmap[&controls::Saturation] = ControlInfo(0.0f, 1.993f, kDefaultSaturation);
+
+	return 0;
+}
+
+/**
+ * \copydoc libcamera::ipa::Algorithm::configure
+ */
+int ColorProcessing::configure([[maybe_unused]] IPAContext &context,
+			       [[maybe_unused]] const IPACameraSensorInfo &configInfo)
+{
+	auto &cproc = context.activeState.cproc;
+
+	cproc.brightness = convertBrightness(kDefaultBrightness);
+	cproc.contrast = convertContrast(kDefaultContrast);
+	cproc.saturation = convertSaturation(kDefaultSaturation);
+
+	return 0;
+}
+
 /**
  * \copydoc libcamera::ipa::Algorithm::queueRequest
  */
@@ -44,9 +93,12 @@ void ColorProcessing::queueRequest(IPAContext &context,
 	auto &cproc = context.activeState.cproc;
 	bool update = false;
 
+	if (frame == 0)
+		update = true;
+
 	const auto &brightness = controls.get(controls::Brightness);
 	if (brightness) {
-		int value = std::clamp<int>(std::lround(*brightness * 128), -128, 127);
+		int value = convertBrightness(*brightness);
 		if (cproc.brightness != value) {
 			cproc.brightness = value;
 			update = true;
@@ -57,7 +109,7 @@ void ColorProcessing::queueRequest(IPAContext &context,
 
 	const auto &contrast = controls.get(controls::Contrast);
 	if (contrast) {
-		int value = std::clamp<int>(std::lround(*contrast * 128), 0, 255);
+		int value = convertContrast(*contrast);
 		if (cproc.contrast != value) {
 			cproc.contrast = value;
 			update = true;
@@ -68,7 +120,7 @@ void ColorProcessing::queueRequest(IPAContext &context,
 
 	const auto saturation = controls.get(controls::Saturation);
 	if (saturation) {
-		int value = std::clamp<int>(std::lround(*saturation * 128), 0, 255);
+		int value = convertSaturation(*saturation);
 		if (cproc.saturation != value) {
 			cproc.saturation = value;
 			update = true;