1 files changed, 74 insertions, 0 deletions
diff --git a/Runtime/GfxDevice/d3d11/ConstantBuffersD3D11.h b/Runtime/GfxDevice/d3d11/ConstantBuffersD3D11.h
new file mode 100644
index 0000000..7c2a3eb
--- /dev/null
+++ b/Runtime/GfxDevice/d3d11/ConstantBuffersD3D11.h
@@ -0,0 +1,74 @@
+#pragma once
+
+#include "D3D11Includes.h"
+#include "Runtime/GfxDevice/GfxDeviceTypes.h"
+
+
+#define DEBUG_D3D11_CONSTANT_BUFFER_STATS 0
+
+#if DEBUG_D3D11_CONSTANT_BUFFER_STATS
+#include <map>
+#endif
+
+
+class ConstantBuffersD3D11
+{
+public:
+	ConstantBuffersD3D11();
+	~ConstantBuffersD3D11() { Clear(); }
+
+	void Clear();
+	void InvalidateState();
+
+	struct ConstBuffer {
+		int			bindIndex[kShaderTypeCount];
+		unsigned	bindStages;
+		bool	dirty;
+		UInt8*			data;
+		ID3D11Buffer*	buffer;
+		#if DEBUG_D3D11_CONSTANT_BUFFER_STATS
+		int		statsDirty;
+		int		stats[kShaderTypeCount]
+		int*	tryCounts;
+		int*	changeCounts;
+		#endif
+	};
+
+	void SetCBInfo (int id, int size);
+	int  FindAndBindCB (int id, ShaderType shaderType, int bind, int size);
+	void ResetBinds (ShaderType shaderType);
+
+	void SetBuiltinCBConstant (int id, int offset, const void* data, int size);
+	void SetCBConstant (int index, int offset, const void* data, int size);
+
+	void UpdateBuffers();
+	void NewFrame();
+
+private:
+	inline int GetCBIndexByID (int id) const
+	{
+		UInt32 key = id;
+		int n = m_BufferKeys.size();
+		for (int i = 0; i < n; ++i)
+		{
+			if ((m_BufferKeys[i]&0xFFFF) == key)
+				return i;
+		}
+		Assert (false);
+		return -1;
+	}
+
+private:
+	typedef std::vector<UInt32> ConstBufferKeys;
+	typedef std::vector<ConstBuffer> ConstBuffers;
+	ConstBufferKeys	m_BufferKeys;
+	ConstBuffers	m_Buffers;
+
+	ID3D11Buffer*	m_ActiveBuffers[kShaderTypeCount][16];
+};
+
+
+#if !DEBUG_D3D11_CONSTANT_BUFFER_STATS
+inline void ConstantBuffersD3D11::NewFrame() { }
+#endif
+