ipa: simple: Add a flag to indicate gpuIspEnabled

Flag gpuIspEnabled in the simple IPA context. This flag will allow to
selectively avoid some calculations or to generate a default CCM.

Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Tested-by: Robert Mader <robert.mader@collabora.com>
Tested-by: Hans de Goede <johannes.goede@oss.qualcomm.com> # ThinkPad T14s gen 6 (arm64) ov02c10 + X1c gen 12 ov08x40
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> # Lenovo X13s
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

include/libcamera/ipa/soft.mojom

@@ -17,7 +17,8 @@ interface IPASoftInterface {
 	     libcamera.SharedFD fdStats,
 	     libcamera.SharedFD fdParams,
 	     libcamera.IPACameraSensorInfo sensorInfo,
-	     libcamera.ControlInfoMap sensorControls)
+	     libcamera.ControlInfoMap sensorControls,
+	     bool gpuIspEnabled)
 		=> (int32 ret, libcamera.ControlInfoMap ipaControls, bool ccmEnabled);
 	start() => (int32 ret);
 	stop();

src/ipa/simple/ipa_context.h

@@ -105,6 +105,7 @@ struct IPAContext {
 	FCQueue<IPAFrameContext> frameContexts;
 	ControlInfoMap::Map ctrlMap;
 	bool ccmEnabled = false;
+	bool gpuIspEnabled = false;
 };
 
 } /* namespace ipa::soft */

src/ipa/simple/soft_simple.cpp

@@ -55,6 +55,7 @@ public:
 		 const SharedFD &fdParams,
 		 const IPACameraSensorInfo &sensorInfo,
 		 const ControlInfoMap &sensorControls,
+		 bool gpuIspEnabled,
 		 ControlInfoMap *ipaControls,
 		 bool *ccmEnabled) override;
 	int configure(const IPAConfigInfo &configInfo) override;
@@ -95,6 +96,7 @@ int IPASoftSimple::init(const IPASettings &settings,
 			const SharedFD &fdParams,
 			const IPACameraSensorInfo &sensorInfo,
 			const ControlInfoMap &sensorControls,
+			bool gpuIspEnabled,
 			ControlInfoMap *ipaControls,
 			bool *ccmEnabled)
 {
@@ -106,6 +108,7 @@ int IPASoftSimple::init(const IPASettings &settings,
 	}
 
 	context_.sensorInfo = sensorInfo;
+	context_.gpuIspEnabled = gpuIspEnabled;
 
 	/* Load the tuning data file */
 	File file(settings.configurationFile);

src/libcamera/software_isp/software_isp.cpp

@@ -121,14 +121,20 @@ SoftwareIsp::SoftwareIsp(PipelineHandler *pipe, const CameraSensor *sensor,
 	}
 	stats->statsReady.connect(this, &SoftwareIsp::statsReady);
 
+	bool gpuIspEnabled;
+
 #if HAVE_DEBAYER_EGL
 	std::optional<std::string> softISPMode = configuration.envOption("LIBCAMERA_SOFTISP_MODE", { "software_isp", "mode" });
 
-	if (softISPMode && softISPMode == "gpu")
+	if (softISPMode && softISPMode == "gpu") {
 		debayer_ = std::make_unique<DebayerEGL>(std::move(stats), configuration);
+		gpuIspEnabled = true;
+	}
 #endif
-	if (!debayer_)
+	if (!debayer_) {
 		debayer_ = std::make_unique<DebayerCpu>(std::move(stats), configuration);
+		gpuIspEnabled = false;
+	}
 
 	debayer_->inputBufferReady.connect(this, &SoftwareIsp::inputReady);
 	debayer_->outputBufferReady.connect(this, &SoftwareIsp::outputReady);
@@ -160,6 +166,7 @@ SoftwareIsp::SoftwareIsp(PipelineHandler *pipe, const CameraSensor *sensor,
 			 sharedParams_.fd(),
 			 sensorInfo,
 			 sensor->controls(),
+			 gpuIspEnabled,
 			 ipaControls,
 			 &ccmEnabled_);
 	if (ret) {