1 files changed, 259 insertions, 0 deletions
diff --git a/Runtime/GfxDevice/BuiltinShaderParamsNames.cpp b/Runtime/GfxDevice/BuiltinShaderParamsNames.cpp
new file mode 100644
index 0000000..d0c9eb2
--- /dev/null
+++ b/Runtime/GfxDevice/BuiltinShaderParamsNames.cpp
@@ -0,0 +1,259 @@
+#include "UnityPrefix.h"
+#include "BuiltinShaderParamsNames.h"
+#include "Runtime/Utilities/ArrayUtility.h"
+
+namespace
+{
+	struct ParamNameIndex
+	{
+		bool operator < (const ParamNameIndex& rhs) const { return strcmp(name, rhs.name) < 0; }
+		bool operator == (const ParamNameIndex& rhs) const { return strcmp(name, rhs.name) == 0; }
+		const char* name;
+		int index;
+	};
+
+	class ParamNameLookup
+	{
+	public:
+		ParamNameLookup() {}
+
+		void AddBuiltinNames(const char** names, int count)
+		{
+			m_Params.resize(count);
+			for (int i = 0; i < count; ++i)
+			{
+				m_Params[i].name = names[i];
+				m_Params[i].index = i;
+			}
+		}
+		void AddSynonyms(ParamNameIndex* params, int count)
+		{
+			m_Params.reserve(m_Params.size() + count);
+			for (int i = 0; i < count; ++i)
+				m_Params.push_back(params[i]);
+		}
+		void Sort()
+		{
+			std::sort(m_Params.begin(), m_Params.end());
+		}
+		bool Find(const char* name, int* outIndex) const
+		{
+			ParamNameIndex key = { name, 0 };
+			ParamNameArray::const_iterator found = std::find(m_Params.begin(), m_Params.end(), key);
+			if (found != m_Params.end())
+			{
+				if (outIndex)
+					*outIndex = found->index;
+				return true;
+			}
+			return false;
+		}
+
+	private:
+		typedef std::vector<ParamNameIndex> ParamNameArray;
+		ParamNameArray m_Params;
+	};
+
+	struct ParamNameLookups
+	{
+		ParamNameLookup instanceMatrices;
+		ParamNameLookup instanceVectors;
+		ParamNameLookup vectors;
+		ParamNameLookup matrices;
+		ParamNameLookup texEnvs;
+	};
+
+	ParamNameLookups* s_NameLookups;
+}
+
+
+//==============================================================================
+
+
+inline static const char** GetInstanceMatrixParams()
+{
+	static const char* lookup[kShaderInstanceMatCount] = {
+		BUILTIN_SHADER_PARAMS_INSTANCE_MATRICES
+
+#if GFX_HIGH_LEVEL_FF
+		,
+		BUILTIN_SHADER_PARAMS_INSTANCE_MATRICES_FF
+#endif
+	};
+	return lookup;
+}
+
+inline static const char** GetInstanceVectorParams()
+{
+	static const char* lookup[kShaderInstanceVecCount] = {
+		BUILTIN_SHADER_PARAMS_INSTANCE_VECTORS
+	};
+	return lookup;
+}
+
+inline static const char** GetBuiltinVectorParams()
+{
+	static const char* lookup[kShaderVecCount] = {
+		BUILTIN_SHADER_PARAMS_VECTORS
+#if GFX_HIGH_LEVEL_FF
+		,
+		BUILTIN_SHADER_PARAMS_VECTORS_FF
+#endif
+	};
+	return lookup;
+}
+
+static ParamNameIndex s_VectorSynonymMapping[] = {
+	{ "glstate_light0_diffuse", kShaderVecLight0Diffuse },
+	{ "glstate_light1_diffuse", kShaderVecLight1Diffuse },
+	{ "glstate_light2_diffuse", kShaderVecLight2Diffuse },
+	{ "glstate_light3_diffuse", kShaderVecLight3Diffuse },
+	{ "glstate_light0_position", kShaderVecLight0Position },
+	{ "glstate_light1_position", kShaderVecLight1Position },
+	{ "glstate_light2_position", kShaderVecLight2Position },
+	{ "glstate_light3_position", kShaderVecLight3Position },
+	{ "glstate_light0_attenuation", kShaderVecLight0Atten },
+	{ "glstate_light1_attenuation", kShaderVecLight1Atten },
+	{ "glstate_light2_attenuation", kShaderVecLight2Atten },
+	{ "glstate_light3_attenuation", kShaderVecLight3Atten },
+	{ "glstate_light0_spotDirection", kShaderVecLight0SpotDirection },
+	{ "glstate_light1_spotDirection", kShaderVecLight1SpotDirection },
+	{ "glstate_light2_spotDirection", kShaderVecLight2SpotDirection },
+	{ "glstate_light3_spotDirection", kShaderVecLight3SpotDirection }
+};
+
+inline static const char** GetBuiltinMatrixParams()
+{
+	static const char* lookup[kShaderMatCount] = {
+		BUILTIN_SHADER_PARAMS_MATRICES
+	};
+	return lookup;
+}
+
+static ParamNameIndex s_MatrixSynonymMapping[] = {
+	{ "unity_World2Shadow",  kShaderMatWorldToShadow },
+	{ "unity_World2Shadow0", kShaderMatWorldToShadow },
+	{ "unity_World2Shadow1", kShaderMatWorldToShadow1 },
+	{ "unity_World2Shadow2", kShaderMatWorldToShadow2 },
+	{ "unity_World2Shadow3", kShaderMatWorldToShadow3 }
+};
+
+inline static const char** GetBuiltinTexEnvParams()
+{
+	static const char* lookup[kShaderTexEnvCount] = {
+		BUILTIN_SHADER_PARAMS_TEXENVS
+	};
+	return lookup;
+}
+
+
+//------------------------------------------------------------------------------
+
+const char* GetShaderInstanceMatrixParamName(int paramIndex)
+{
+	Assert(paramIndex >= 0 && paramIndex < kShaderInstanceMatCount);
+	return GetInstanceMatrixParams()[paramIndex];
+}
+const char* GetShaderInstanceVectorParamName(int paramIndex)
+{
+	Assert(paramIndex >= 0 && paramIndex < kShaderInstanceVecCount);
+	return GetInstanceVectorParams()[paramIndex];
+}
+const char* GetBuiltinMatrixParamName(int paramIndex)
+{
+	Assert(paramIndex >= 0 && paramIndex < kShaderMatCount);
+	return GetBuiltinMatrixParams()[paramIndex];
+}
+const char* GetBuiltinVectorParamName(int paramIndex)
+{
+	Assert(paramIndex >= 0 && paramIndex < kShaderVecCount);
+	return GetBuiltinVectorParams()[paramIndex];
+}
+const char* GetBuiltinTexEnvParamName(int paramIndex)
+{
+	Assert(paramIndex >= 0 && paramIndex < kShaderTexEnvCount);
+	return GetBuiltinTexEnvParams()[paramIndex];
+}
+
+//------------------------------------------------------------------------------
+
+void InitializeBuiltinShaderParamNames ()
+{
+	Assert (!s_NameLookups);
+	// needs to dynamically allocate this due to static initialization order (FastPropertyNames
+	// might be initialized before this is etc.)
+	s_NameLookups = new ParamNameLookups ();
+
+	s_NameLookups->instanceMatrices.AddBuiltinNames(GetInstanceMatrixParams(), kShaderInstanceMatCount);
+	s_NameLookups->instanceMatrices.Sort();
+
+	s_NameLookups->instanceVectors.AddBuiltinNames(GetInstanceVectorParams(), kShaderInstanceVecCount);
+	s_NameLookups->instanceVectors.Sort();
+
+	s_NameLookups->vectors.AddBuiltinNames(GetBuiltinVectorParams(), kShaderVecCount);
+	s_NameLookups->vectors.AddSynonyms(s_VectorSynonymMapping, ARRAY_SIZE(s_VectorSynonymMapping));
+	s_NameLookups->vectors.Sort();
+
+	s_NameLookups->matrices.AddBuiltinNames(GetBuiltinMatrixParams(), kShaderMatCount);
+	s_NameLookups->matrices.AddSynonyms(s_MatrixSynonymMapping, ARRAY_SIZE(s_MatrixSynonymMapping));
+	s_NameLookups->matrices.Sort();
+
+	s_NameLookups->texEnvs.AddBuiltinNames(GetBuiltinTexEnvParams(), kShaderTexEnvCount);
+	s_NameLookups->texEnvs.Sort();
+}
+
+void CleanupBuiltinShaderParamNames ()
+{
+	delete s_NameLookups;
+	s_NameLookups = NULL;
+}
+
+bool IsShaderInstanceMatrixParam(const char* name, int* paramIndex)
+{
+	return s_NameLookups->instanceMatrices.Find(name, paramIndex);
+}
+
+bool IsShaderInstanceVectorParam(const char* name, int* paramIndex)
+{
+	return s_NameLookups->instanceVectors.Find(name, paramIndex);
+}
+
+bool IsVectorBuiltinParam(const char* name, int* paramIndex)
+{
+	return s_NameLookups->vectors.Find(name, paramIndex);
+}
+
+bool IsMatrixBuiltinParam(const char* name, int* paramIndex)
+{
+	return s_NameLookups->matrices.Find(name, paramIndex);
+}
+
+bool IsTexEnvBuiltinParam(const char* name, int* paramIndex)
+{
+	return s_NameLookups->texEnvs.Find(name, paramIndex);
+}
+
+bool IsBuiltinArrayName(const char* name)
+{
+	static const char* _BuiltinArrayName[] =
+	{
+		"glstate_matrix_texture",
+		"unity_LightColor",
+		"unity_LightPosition",
+		"unity_LightAtten",
+		"unity_World2Shadow",
+		"unity_ShadowSplitSpheres",
+		"_ShadowOffsets",
+		"unity_CameraWorldClipPlanes"
+	};
+
+	static const unsigned _BuiltinArrayCount = sizeof(_BuiltinArrayName) / sizeof(const char*);
+
+	for( unsigned i = 0 ; i < _BuiltinArrayCount ; ++i )
+	{
+		if( ::strcmp(name, _BuiltinArrayName[i]) == 0 )
+			return true;
+	}
+
+	return false;
+}