128 lines
2.4 KiB
C++
128 lines
2.4 KiB
C++
// Copyright 2013 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#pragma once
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#include "VideoCommon/VertexManagerBase.h"
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extern u8* g_video_buffer_read_ptr;
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#if _M_SSE >= 0x301 && !(defined __GNUC__ && !defined __SSSE3__)
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#include <tmmintrin.h>
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#endif
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__forceinline void DataSkip(u32 skip)
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{
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g_video_buffer_read_ptr += skip;
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}
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// probably unnecessary
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template <int count>
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__forceinline void DataSkip()
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{
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g_video_buffer_read_ptr += count;
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}
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template <typename T>
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__forceinline T DataPeek(int _uOffset, u8** bufp = &g_video_buffer_read_ptr)
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{
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auto const result = Common::FromBigEndian(*reinterpret_cast<T*>(*bufp + _uOffset));
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return result;
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}
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// TODO: kill these
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__forceinline u8 DataPeek8(int _uOffset)
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{
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return DataPeek<u8>(_uOffset);
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}
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__forceinline u16 DataPeek16(int _uOffset)
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{
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return DataPeek<u16>(_uOffset);
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}
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__forceinline u32 DataPeek32(int _uOffset)
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{
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return DataPeek<u32>(_uOffset);
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}
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template <typename T>
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__forceinline T DataRead(u8** bufp = &g_video_buffer_read_ptr)
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{
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auto const result = DataPeek<T>(0, bufp);
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*bufp += sizeof(T);
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return result;
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}
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class DataReader
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{
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public:
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inline DataReader() : buffer(g_video_buffer_read_ptr), offset(0) {}
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inline ~DataReader() { g_video_buffer_read_ptr += offset; }
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template <typename T> inline T Read()
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{
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const T result = Common::FromBigEndian(*(T*)(buffer + offset));
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offset += sizeof(T);
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return result;
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}
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private:
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u8 *buffer;
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int offset;
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};
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// TODO: kill these
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__forceinline u8 DataReadU8()
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{
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return DataRead<u8>();
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}
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__forceinline s8 DataReadS8()
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{
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return DataRead<s8>();
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}
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__forceinline u16 DataReadU16()
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{
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return DataRead<u16>();
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}
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__forceinline u32 DataReadU32()
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{
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return DataRead<u32>();
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}
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__forceinline u32 DataReadU32Unswapped()
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{
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u32 tmp = *(u32*)g_video_buffer_read_ptr;
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g_video_buffer_read_ptr += 4;
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return tmp;
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}
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__forceinline u8* DataGetPosition()
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{
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return g_video_buffer_read_ptr;
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}
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template <typename T>
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__forceinline void DataWrite(T data)
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{
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*(T*)VertexManager::s_pCurBufferPointer = data;
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VertexManager::s_pCurBufferPointer += sizeof(T);
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}
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class DataWriter
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{
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public:
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inline DataWriter() : buffer(VertexManager::s_pCurBufferPointer), offset(0) {}
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inline ~DataWriter() { VertexManager::s_pCurBufferPointer += offset; }
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template <typename T> inline void Write(T data)
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{
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*(T*)(buffer+offset) = data;
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offset += sizeof(T);
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}
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private:
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u8 *buffer;
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int offset;
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};
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