GL Vertex loader moved to VideoCommon.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1692 8ced0084-cf51-0410-be5f-012b33b47a6e

1 files changed, 242 insertions, 0 deletions

diff --git a/Source/Core/VideoCommon/Src/VertexLoader_Position.cpp b/Source/Core/VideoCommon/Src/VertexLoader_Position.cpp
new file mode 100644
index 0000000000..4dfd1c1869
--- /dev/null
+++ b/Source/Core/VideoCommon/Src/VertexLoader_Position.cpp
@@ -0,0 +1,242 @@
+// Copyright (C) 2003-2008 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 VERTEXLOADER_POSITION_H
+#define VERTEXLOADER_POSITION_H
+
+#include "Common.h"
+#include "VideoCommon.h"
+#include "VertexLoader.h"
+#include "VertexLoader_Position.h"
+#include "NativeVertexWriter.h"
+
+extern float posScale;
+extern TVtxAttr *pVtxAttr;
+
+#define LOG_VTX() PRIM_LOG("vtx: %f %f %f, ", ((float*)VertexManager::s_pCurBufferPointer)[0], ((float*)VertexManager::s_pCurBufferPointer)[1], ((float*)VertexManager::s_pCurBufferPointer)[2]);
+
+// Thoughts on the implementation of a vertex loader compiler.
+// s_pCurBufferPointer should definitely be in a register.
+// Could load the position scale factor in XMM7, for example.
+
+// The pointer inside DataReadU8 in another.
+// Let's check out Pos_ReadDirect_UByte(). For Byte, replace MOVZX with MOVSX.
+
+/*
+MOVZX(32, R(EAX), MOffset(ESI, 0));
+MOVZX(32, R(EBX), MOffset(ESI, 1));
+MOVZX(32, R(ECX), MOffset(ESI, 2));
+MOVD(XMM0, R(EAX));
+MOVD(XMM1, R(EBX));
+MOVD(XMM2, R(ECX));                   
+CVTDQ2PS(XMM0, XMM0);
+CVTDQ2PS(XMM1, XMM1);
+CVTDQ2PS(XMM2, XMM2);
+MULSS(XMM0, XMM7);
+MULSS(XMM1, XMM7);
+MULSS(XMM2, XMM7);
+MOVSS(MOffset(EDI, 0), XMM0);
+MOVSS(MOffset(EDI, 4), XMM1);
+MOVSS(MOffset(EDI, 8), XMM2);
+
+Alternatively, lookup table:
+MOVZX(32, R(EAX), MOffset(ESI, 0));
+MOVZX(32, R(EBX), MOffset(ESI, 1));
+MOVZX(32, R(ECX), MOffset(ESI, 2));
+MOV(32, R(EAX), MComplex(LUTREG, EAX, 4));
+MOV(32, R(EBX), MComplex(LUTREG, EBX, 4));
+MOV(32, R(ECX), MComplex(LUTREG, ECX, 4));
+MOV(MOffset(EDI, 0), XMM0);
+MOV(MOffset(EDI, 4), XMM1);
+MOV(MOffset(EDI, 8), XMM2);
+
+SSE4:
+PINSRB(XMM0, MOffset(ESI, 0), 0);
+PINSRB(XMM0, MOffset(ESI, 1), 4);
+PINSRB(XMM0, MOffset(ESI, 2), 8);
+CVTDQ2PS(XMM0, XMM0);
+<two unpacks here to sign extend>
+MULPS(XMM0, XMM7);
+MOVUPS(MOffset(EDI, 0), XMM0);
+
+									 */
+
+// ==============================================================================
+// Direct
+// ==============================================================================
+void LOADERDECL Pos_ReadDirect_UByte()
+{
+	((float*)VertexManager::s_pCurBufferPointer)[0] = (float)DataReadU8() * posScale;
+	((float*)VertexManager::s_pCurBufferPointer)[1] = (float)DataReadU8() * posScale;
+	if (pVtxAttr->PosElements)
+		((float*)VertexManager::s_pCurBufferPointer)[2] = (float)DataReadU8() * posScale;
+	else
+		((float*)VertexManager::s_pCurBufferPointer)[2] = 1.0f;
+	LOG_VTX();
+	VertexManager::s_pCurBufferPointer += 12;
+}
+
+void LOADERDECL Pos_ReadDirect_Byte()
+{	
+	((float*)VertexManager::s_pCurBufferPointer)[0] = (float)(s8)DataReadU8() * posScale;
+	((float*)VertexManager::s_pCurBufferPointer)[1] = (float)(s8)DataReadU8() * posScale;
+	if (pVtxAttr->PosElements)
+		((float*)VertexManager::s_pCurBufferPointer)[2] = (float)(s8)DataReadU8() * posScale;
+	else
+		((float*)VertexManager::s_pCurBufferPointer)[2] = 1.0;
+	LOG_VTX();
+	VertexManager::s_pCurBufferPointer += 12;
+}
+
+void LOADERDECL Pos_ReadDirect_UShort()
+{
+	((float*)VertexManager::s_pCurBufferPointer)[0] = (float)DataReadU16() * posScale;
+	((float*)VertexManager::s_pCurBufferPointer)[1] = (float)DataReadU16() * posScale;
+	if (pVtxAttr->PosElements)
+		((float*)VertexManager::s_pCurBufferPointer)[2] = (float)DataReadU16() * posScale;
+	else
+		((float*)VertexManager::s_pCurBufferPointer)[2] = 1.0f;
+	LOG_VTX();
+	VertexManager::s_pCurBufferPointer += 12;
+}
+
+void LOADERDECL Pos_ReadDirect_Short()
+{
+	((float*)VertexManager::s_pCurBufferPointer)[0] = (float)(s16)DataReadU16() * posScale;
+	((float*)VertexManager::s_pCurBufferPointer)[1] = (float)(s16)DataReadU16() * posScale;
+	if (pVtxAttr->PosElements)
+		((float*)VertexManager::s_pCurBufferPointer)[2] = (float)(s16)DataReadU16() * posScale;
+	else
+		((float*)VertexManager::s_pCurBufferPointer)[2] = 1.0f;
+	LOG_VTX();
+	VertexManager::s_pCurBufferPointer += 12;
+}
+
+void LOADERDECL Pos_ReadDirect_Float()
+{
+	// No need to use floating point here.
+	((u32 *)VertexManager::s_pCurBufferPointer)[0] = DataReadU32(); 
+	((u32 *)VertexManager::s_pCurBufferPointer)[1] = DataReadU32();
+	if (pVtxAttr->PosElements)
+		((u32 *)VertexManager::s_pCurBufferPointer)[2] = DataReadU32();
+	else
+		((float*)VertexManager::s_pCurBufferPointer)[2] = 1.0f;
+	LOG_VTX();
+	VertexManager::s_pCurBufferPointer += 12;
+}
+
+#define Pos_ReadIndex_Byte(T) { \
+	u32 iAddress = arraybases[ARRAY_POSITION] + ((u32)Index * arraystrides[ARRAY_POSITION]); \
+	((float*)VertexManager::s_pCurBufferPointer)[0] = ((float)(T)Memory_Read_U8(iAddress)) * posScale; \
+	((float*)VertexManager::s_pCurBufferPointer)[1] = ((float)(T)Memory_Read_U8(iAddress+1)) * posScale; \
+	if (pVtxAttr->PosElements) \
+		((float*)VertexManager::s_pCurBufferPointer)[2] = ((float)(T)Memory_Read_U8(iAddress+2)) * posScale; \
+	else \
+		((float*)VertexManager::s_pCurBufferPointer)[2] = 1.0f; \
+	LOG_VTX(); \
+	VertexManager::s_pCurBufferPointer += 12; \
+}
+
+#define Pos_ReadIndex_Short(T) { \
+	u32 iAddress = arraybases[ARRAY_POSITION] + ((u32)Index * arraystrides[ARRAY_POSITION]); \
+	((float*)VertexManager::s_pCurBufferPointer)[0] = ((float)(T)Memory_Read_U16(iAddress)) * posScale; \
+	((float*)VertexManager::s_pCurBufferPointer)[1] = ((float)(T)Memory_Read_U16(iAddress+2)) * posScale; \
+	if (pVtxAttr->PosElements) \
+		((float*)VertexManager::s_pCurBufferPointer)[2] = ((float)(T)Memory_Read_U16(iAddress+4)) * posScale; \
+	else \
+		((float*)VertexManager::s_pCurBufferPointer)[2] = 1.0f; \
+	LOG_VTX(); \
+	VertexManager::s_pCurBufferPointer += 12; \
+}
+
+#define Pos_ReadIndex_Float() { \
+	u32 iAddress = arraybases[ARRAY_POSITION] + (Index * arraystrides[ARRAY_POSITION]); \
+	((u32*)VertexManager::s_pCurBufferPointer)[0] = Memory_Read_U32(iAddress); \
+	((u32*)VertexManager::s_pCurBufferPointer)[1] = Memory_Read_U32(iAddress+4); \
+	if (pVtxAttr->PosElements) \
+		((u32*)VertexManager::s_pCurBufferPointer)[2] = Memory_Read_U32(iAddress+8); \
+	else \
+		((float*)VertexManager::s_pCurBufferPointer)[2] = 1.0f; \
+	LOG_VTX(); \
+	VertexManager::s_pCurBufferPointer += 12; \
+}
+
+// ==============================================================================
+// Index 8
+// ==============================================================================
+void LOADERDECL Pos_ReadIndex8_UByte() 
+{ 
+	u8 Index = DataReadU8();
+	Pos_ReadIndex_Byte(u8);
+}
+
+void LOADERDECL Pos_ReadIndex8_Byte()
+{
+	u8 Index = DataReadU8();
+	Pos_ReadIndex_Byte(s8);
+}
+
+void LOADERDECL Pos_ReadIndex8_UShort()
+{
+	u8 Index = DataReadU8();
+	Pos_ReadIndex_Short(u16);
+}
+
+void LOADERDECL Pos_ReadIndex8_Short()
+{
+	u8 Index = DataReadU8();
+	Pos_ReadIndex_Short(s16);
+}
+
+void LOADERDECL Pos_ReadIndex8_Float()
+{
+	u8 Index = DataReadU8();
+	Pos_ReadIndex_Float();
+}
+
+// ==============================================================================
+// Index 16
+// ==============================================================================
+
+void LOADERDECL Pos_ReadIndex16_UByte(){
+	u16 Index = DataReadU16(); 
+	Pos_ReadIndex_Byte(u8);
+}
+
+void LOADERDECL Pos_ReadIndex16_Byte(){
+	u16 Index = DataReadU16(); 
+	Pos_ReadIndex_Byte(s8);
+}
+
+void LOADERDECL Pos_ReadIndex16_UShort(){
+	u16 Index = DataReadU16(); 
+	Pos_ReadIndex_Short(u16);
+}
+
+void LOADERDECL Pos_ReadIndex16_Short()
+{
+	u16 Index = DataReadU16(); 
+	Pos_ReadIndex_Short(s16);
+}
+
+void LOADERDECL Pos_ReadIndex16_Float()
+{
+	u16 Index = DataReadU16(); 
+	Pos_ReadIndex_Float();
+}
+
+#endif