1 files changed, 78 insertions, 0 deletions
diff --git a/Runtime/GfxDevice/GfxPatchInfo.h b/Runtime/GfxDevice/GfxPatchInfo.h
new file mode 100644
index 0000000..355b4d5
--- /dev/null
+++ b/Runtime/GfxDevice/GfxPatchInfo.h
@@ -0,0 +1,78 @@
+#pragma once
+
+#include "GfxDeviceTypes.h"
+#include "External/shaderlab/Library/shadertypes.h"
+#include "External/shaderlab/Library/texenv.h"
+#include "Runtime/Utilities/dynamic_array.h"
+
+struct GfxPatch
+{
+	GfxPatch(const ShaderLab::FastPropertyName& name, const void* src, size_t ofs)
+		: nameIndex(name.index), source(src), patchOffset(ofs) {}
+
+	enum Type
+	{
+		kTypeFloat,
+		kTypeVector,
+		kTypeMatrix,
+		kTypeBuffer,
+		kTypeCount
+	};
+
+	int nameIndex;
+	const void* source;
+	size_t patchOffset;
+};
+
+struct GfxTexEnvPatch
+{
+	GfxTexEnvPatch(const ShaderLab::FastPropertyName& name, const ShaderLab::FastPropertyName& matName,
+			ShaderLab::TexEnv* tex, TextureDimension dim, size_t ofs, UInt32 flags)
+		: nameIndex(name.index), matrixName(matName), texEnv(tex), texDim(dim), patchOffset(ofs), patchFlags(flags) {}
+
+	enum PatchFlag
+	{
+		kPatchProperties	= 1 << 0,
+		kPatchMatrix		= 1 << 1
+	};
+
+	//ShaderLab::FastPropertyName textureName;
+	int nameIndex;
+	ShaderLab::FastPropertyName matrixName;
+	ShaderLab::TexEnv* texEnv;
+	TextureDimension texDim;
+	size_t patchOffset;
+	UInt32 patchFlags;
+};
+
+class GfxPatchInfo
+{
+public:
+	FORCE_INLINE size_t				GetPatchCount(GfxPatch::Type type) const			{ return m_Patches[type].size(); }
+	FORCE_INLINE const GfxPatch&	GetPatch(GfxPatch::Type type, int index) const		{ return m_Patches[type][index]; }
+	FORCE_INLINE GfxPatch&			GetPatch(GfxPatch::Type type, int index)			{ return m_Patches[type][index]; }
+	FORCE_INLINE void				AddPatch(GfxPatch::Type type, const GfxPatch& p)	{ m_Patches[type].push_back(p); }
+
+	FORCE_INLINE size_t					GetTexEnvPatchCount() const						{ return m_TexEnvPatches.size(); }
+	FORCE_INLINE const GfxTexEnvPatch&	GetTexEnvPatch(int index) const					{ return m_TexEnvPatches[index]; }
+	FORCE_INLINE GfxTexEnvPatch&		GetTexEnvPatch(int index)						{ return m_TexEnvPatches[index]; }
+	FORCE_INLINE void					AddTexEnvPatch(const GfxTexEnvPatch& p)			{ m_TexEnvPatches.push_back(p); }
+
+	void Reset();
+
+	void AddPatchableFloat(const ShaderLab::FloatVal& val, float& dest, const void* bufferStart,  
+		const ShaderLab::PropertySheet* props);
+
+	void AddPatchableVector(const ShaderLab::VectorVal& val, Vector4f& dest, const void* bufferStart,  
+		const ShaderLab::PropertySheet* props);
+
+	bool AddPatchableTexEnv(const ShaderLab::FastPropertyName& name, const ShaderLab::FastPropertyName& matrixName,
+		TextureDimension dim, TexEnvData* dest, const void* bufferStart, const ShaderLab::PropertySheet* props);
+
+private:
+	typedef dynamic_array<GfxPatch> PatchArray;
+	typedef dynamic_array<GfxTexEnvPatch> TexEnvPatchArray;
+	PatchArray m_Patches[GfxPatch::kTypeCount];
+	TexEnvPatchArray m_TexEnvPatches;
+};
+