*

LifeGraphics/shaders/IShaderGraphCompiler.h

@@ -0,0 +1,70 @@
+#ifndef IShaderGraphCompiler_h__
+#define IShaderGraphCompiler_h__
+
+#include "shaders/IShaderGraphNode.h"
+
+namespace LifeGraphics
+{
+	enum IShaderCompilerFlags
+	{
+		SCF_NONE = 0,
+		SCF_SKINNING = 1,
+	};
+
+	static int ShaderTypeToChannelCount(IShaderDataType t)
+	{
+		switch(t)
+		{
+		case DT_ANY:
+			return 0;
+		case DT_FLOAT:
+			return 1;
+		case DT_FLOAT2:
+			return 2;
+		case DT_FLOAT3:
+			return 3;
+		case DT_FLOAT4:
+			return 4;
+		}
+		return 0;
+	}
+
+	static IShaderDataType MaxType(IShaderDataType t1, IShaderDataType t2)
+	{
+		return ShaderTypeToChannelCount(t1) > ShaderTypeToChannelCount(t2) ? t1 : t2;
+	}
+
+	struct ShaderTextureMapping
+	{
+		int reg;
+		int nodeId;
+		String name;
+	};
+	struct ShaderConstantMapping
+	{
+		String name;
+		IShaderDataType DataType;
+		int size;
+		int offset;
+	};
+	struct ShaderConstantTable
+	{
+
+	};
+
+	struct ShaderInputInfo
+	{
+		std::vector<ShaderTextureMapping> Textures;
+		void Clear()
+		{
+			Textures.clear();
+		}
+	};
+
+	class IShaderGraphCompiler
+	{
+	public:
+		virtual void CompileNode(IShaderGraphNode* rootNode, int flags, String& ps, String& vs, ShaderInputInfo* info) = 0;
+	};
+}
+#endif // IShaderGraphCompiler_h__