Moved some of the new shader uid stuff to a common header file.

Source/Core/VideoCommon/Src/ShaderGenCommon.h

@@ -0,0 +1,94 @@
+// Copyright (C) 2003 Dolphin Project.
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 2.0.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#ifndef _SHADERGENCOMMON_H
+#define _SHADERGENCOMMON_H
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include "CommonTypes.h"
+
+template<class uid_data>
+class ShaderUid
+{
+public:
+	ShaderUid()
+	{
+		memset(values, 0, sizeof(values));
+	}
+
+	void Write(const char* fmt, ...) {}
+	const char* GetBuffer() { return NULL; }
+	void SetBuffer(char* buffer) { }
+
+	bool operator == (const ShaderUid& obj) const
+	{
+		return memcmp(this->values, obj.values, sizeof(values)) == 0;
+	}
+
+	// TODO: Store last frame used and order by that? makes much more sense anyway...
+	bool operator < (const ShaderUid& obj) const
+	{
+		for (int i = 0; i < sizeof(uid_data) / sizeof(u32); ++i)
+		{
+			if (this->values[i] < obj.values[i])
+				return true;
+			else if (this->values[i] > obj.values[i])
+				return false;
+		}
+		return false;
+	}
+
+	uid_data& GetUidData() { return data; }
+
+private:
+	union
+	{
+		uid_data data;
+		u32 values[sizeof(uid_data) / sizeof(u32)];
+	};
+};
+
+// Needs to be a template for hacks...
+template<class uid_data>
+class ShaderCode
+{
+public:
+	ShaderCode() : buf(NULL), write_ptr(NULL)
+	{
+
+	}
+
+	void Write(const char* fmt, ...)
+	{
+		va_list arglist;
+		va_start(arglist, fmt);
+		write_ptr += vsprintf(write_ptr, fmt, arglist);
+		va_end(arglist);
+	}
+
+	const char* GetBuffer() { return buf; }
+	void SetBuffer(char* buffer) { buf = buffer; write_ptr = buffer; }
+	uid_data& GetUidData() { return *(uid_data*)NULL; }
+
+private:
+	const char* buf;
+	char* write_ptr;
+};
+
+#endif // _SHADERGENCOMMON_H