VertexLoader: Move the old Datareader function into VertexLoader

Source/Core/VideoCommon/VertexLoaderUtils.h

@@ -0,0 +1,93 @@
+// Copyright 2014 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+
+#include "Common/Common.h"
+#include "VideoCommon/VertexManagerBase.h"
+
+extern u8* g_video_buffer_read_ptr;
+
+
+__forceinline void DataSkip(u32 skip)
+{
+	g_video_buffer_read_ptr += skip;
+}
+
+// probably unnecessary
+template <int count>
+__forceinline void DataSkip()
+{
+	g_video_buffer_read_ptr += count;
+}
+
+template <typename T>
+__forceinline T DataPeek(int _uOffset, u8** bufp = &g_video_buffer_read_ptr)
+{
+	auto const result = Common::FromBigEndian(*reinterpret_cast<T*>(*bufp + _uOffset));
+	return result;
+}
+
+// TODO: kill these
+__forceinline u8 DataPeek8(int _uOffset)
+{
+	return DataPeek<u8>(_uOffset);
+}
+
+__forceinline u16 DataPeek16(int _uOffset)
+{
+	return DataPeek<u16>(_uOffset);
+}
+
+__forceinline u32 DataPeek32(int _uOffset)
+{
+	return DataPeek<u32>(_uOffset);
+}
+
+template <typename T>
+__forceinline T DataRead(u8** bufp = &g_video_buffer_read_ptr)
+{
+	auto const result = DataPeek<T>(0, bufp);
+	*bufp += sizeof(T);
+	return result;
+}
+
+// TODO: kill these
+__forceinline u8 DataReadU8()
+{
+	return DataRead<u8>();
+}
+
+__forceinline s8 DataReadS8()
+{
+	return DataRead<s8>();
+}
+
+__forceinline u16 DataReadU16()
+{
+	return DataRead<u16>();
+}
+
+__forceinline u32 DataReadU32()
+{
+	return DataRead<u32>();
+}
+
+__forceinline u32 DataReadU32Unswapped()
+{
+	u32 tmp = *(u32*)g_video_buffer_read_ptr;
+	g_video_buffer_read_ptr += 4;
+	return tmp;
+}
+
+__forceinline u8* DataGetPosition()
+{
+	return g_video_buffer_read_ptr;
+}
+
+template <typename T>
+__forceinline void DataWrite(T data)
+{
+	*(T*)VertexManager::s_pCurBufferPointer = data;
+	VertexManager::s_pCurBufferPointer += sizeof(T);
+}