1 files changed, 100 insertions, 0 deletions
diff --git a/Runtime/GfxDevice/d3d/ShaderGenerator.h b/Runtime/GfxDevice/d3d/ShaderGenerator.h
new file mode 100644
index 0000000..ccc52b7
--- /dev/null
+++ b/Runtime/GfxDevice/d3d/ShaderGenerator.h
@@ -0,0 +1,100 @@
+#pragma once
+#include <string>
+
+enum ShaderConstant {
+	kConstMatrixMVP,	// model*view*proj
+	kConstMatrixMV,		// model*view
+	kConstMatrixMV_IT,	// model*view inverse transpose
+	kConstMatrixTexture,// texture matrix
+	kConstAmbient,		// materialEmissive + sceneAmbient * materialAmbient
+	kConstColorMatAmbient, // various combos of kConstAmbient, based on color material mode
+	kConstLightMisc,	// 0, 4, 1, 0.5
+	kConstMatDiffuse,	// material diffuse
+	kConstMatSpecular,	// material specular
+	kConstLightIndexes, // light start indexes * 4
+	kConstCount
+};
+
+extern const int kConstantLocations[kConstCount];
+
+
+struct ShaderFragment
+{
+	unsigned int inputs;
+	unsigned int constants;
+	unsigned int dependencies;
+	unsigned int options;
+	int			temps;
+	const char* ins;
+	const char* outs;
+	const char* text;
+};
+
+
+class ShaderGenerator
+{
+public:
+	enum {
+		kMaxShaderFragments = 32,
+		kMaxTempRegisters = 12,
+		kMaxSavedRegisters = 16,
+	};
+
+private:
+	struct FragmentData {
+		FragmentData() : fragment(NULL), inputNames(NULL), param(0) { }
+		FragmentData( const ShaderFragment* f, const char* inames, int p ) : fragment(f), inputNames(inames), param(p) { }
+		bool operator==( const FragmentData& rhs ) const {
+			return
+				fragment==rhs.fragment &&
+				param==rhs.param &&
+				((inputNames==NULL && rhs.inputNames==NULL) || (inputNames && rhs.inputNames && !strcmp(inputNames, rhs.inputNames)));
+		}
+
+		const ShaderFragment* fragment;
+		const char* inputNames;
+		int	param;
+	};
+
+public:
+
+	ShaderGenerator() : m_FragmentCount(0)
+	{
+	}
+
+	void AddFragment( const ShaderFragment* fragment, const char* inputNames = NULL, int param = -1 );
+	void GenerateShader( std::string& output, unsigned int& usedConstants );
+
+private:
+	int m_FragmentCount;
+	FragmentData m_Fragments[kMaxShaderFragments];
+};
+
+
+extern const ShaderFragment kVS_Pos;
+extern const ShaderFragment kVS_Light_Diffuse_Pre;
+extern const ShaderFragment kVS_Light_Diffuse_Dir;
+extern const ShaderFragment kVS_Light_Diffuse_Point;
+extern const ShaderFragment kVS_Light_Diffuse_Spot;
+extern const ShaderFragment kVS_Light_Specular_Pre;
+extern const ShaderFragment kVS_Light_Specular_Dir;
+extern const ShaderFragment kVS_Light_Specular_Point;
+extern const ShaderFragment kVS_Light_Specular_Spot;
+extern const ShaderFragment kVS_Out_Diffuse_Lighting;
+extern const ShaderFragment kVS_Out_Specular_Lighting;
+extern const ShaderFragment kVS_Out_Diffuse_Lighting_ColorDiffuseAmbient;
+extern const ShaderFragment kVS_Out_Diffuse_Lighting_ColorEmission;
+extern const ShaderFragment kVS_Out_Diffuse_VertexColor;
+extern const ShaderFragment kVS_Out_Diffuse_White;
+extern const ShaderFragment kVS_Load_UV0;
+extern const ShaderFragment kVS_Load_UV1;
+extern const ShaderFragment kVS_Load_Normal;
+extern const ShaderFragment kVS_Normalize_Normal;
+extern const ShaderFragment kVS_Out_TexCoord;
+extern const ShaderFragment kVS_Out_Matrix2;
+extern const ShaderFragment kVS_Out_Matrix3;
+extern const ShaderFragment kVS_Temp_CamSpacePos;
+extern const ShaderFragment kVS_Temp_CamSpaceN;
+extern const ShaderFragment kVS_Temp_CamSpaceRefl;
+extern const ShaderFragment kVS_Temp_ObjSpacePos;
+extern const ShaderFragment kVS_Temp_SphereMap;