Handle sampleRateShading parameters

src/Device/Context.cpp

@@ -409,8 +409,10 @@ GraphicsState::GraphicsState(const Device *device, const VkGraphicsPipelineCreat
 			UNSUPPORTED("pCreateInfo->pMultisampleState->flags %d", int(pCreateInfo->pMultisampleState->flags));
 		}
 
-		if(multisampleState->sampleShadingEnable != VK_FALSE)
+		sampleShadingEnable = (multisampleState->sampleShadingEnable != VK_FALSE);
+		if(sampleShadingEnable)
 		{
+			minSampleShading = multisampleState->minSampleShading;
 			UNSUPPORTED("VkPhysicalDeviceFeatures::sampleRateShading");
 		}
 

src/Device/Context.hpp

@@ -165,6 +165,8 @@ struct GraphicsState
 
 	inline unsigned int getMultiSampleMask() const { return multiSampleMask; }
 	inline int getSampleCount() const { return sampleCount; }
+	inline bool hasSampleShadingEnabled() const { return sampleShadingEnable; }
+	inline float getMinSampleShading() const { return minSampleShading; }
 	inline bool hasAlphaToCoverage() const { return alphaToCoverage; }
 
 	inline bool hasPrimitiveRestartEnable() const { return primitiveRestartEnable; }
@@ -233,6 +235,9 @@ private:
 	int sampleCount;
 	bool alphaToCoverage;
 
+	bool sampleShadingEnable = false;
+	float minSampleShading = 0.0f;
+
 	bool primitiveRestartEnable = false;
 	VkRect2D scissor;
 	VkViewport viewport;

src/Device/PixelProcessor.cpp

@@ -137,6 +137,8 @@ const PixelProcessor::State PixelProcessor::update(const vk::GraphicsState &pipe
 	state.multiSampleMask = pipelineState.getMultiSampleMask();
 	state.enableMultiSampling = (state.multiSampleCount > 1) &&
 	                            !(pipelineState.isDrawLine(true) && (pipelineState.getLineRasterizationMode() == VK_LINE_RASTERIZATION_MODE_BRESENHAM_EXT));
+	state.sampleShadingEnabled = pipelineState.hasSampleShadingEnabled();
+	state.minSampleShading = pipelineState.getMinSampleShading();
 
 	if(state.enableMultiSampling && fragmentShader)
 	{

src/Device/PixelProcessor.hpp

@@ -89,6 +89,8 @@ public:
 		bool enableMultiSampling;
 		bool alphaToCoverage;
 		bool centroid;
+		bool sampleShadingEnabled;
+		float minSampleShading;
 		VkFrontFace frontFace;
 		vk::Format depthFormat;
 		bool depthBias;