1 files changed, 333 insertions, 0 deletions
diff --git a/Source/Core/VideoCommon/VertexLoader.cpp b/Source/Core/VideoCommon/VertexLoader.cpp
new file mode 100644
index 0000000000..b8c8fab4de
--- /dev/null
+++ b/Source/Core/VideoCommon/VertexLoader.cpp
@@ -0,0 +1,333 @@
+// Copyright 2008 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "Common/CommonTypes.h"
+#include "Common/MemoryUtil.h"
+
+#include "Core/Host.h"
+
+#include "VideoCommon/DataReader.h"
+#include "VideoCommon/PixelEngine.h"
+#include "VideoCommon/VertexLoader.h"
+#include "VideoCommon/VertexLoader_Color.h"
+#include "VideoCommon/VertexLoader_Normal.h"
+#include "VideoCommon/VertexLoader_Position.h"
+#include "VideoCommon/VertexLoader_TextCoord.h"
+#include "VideoCommon/VertexLoaderManager.h"
+#include "VideoCommon/VideoCommon.h"
+#include "VideoCommon/VideoConfig.h"
+
+// This pointer is used as the source/dst for all fixed function loader calls
+u8* g_video_buffer_read_ptr;
+u8* g_vertex_manager_write_ptr;
+
+static void LOADERDECL PosMtx_ReadDirect_UByte(VertexLoader* loader)
+{
+	u32 posmtx = DataReadU8() & 0x3f;
+	if (loader->m_counter < 3)
+		VertexLoaderManager::position_matrix_index[loader->m_counter] = posmtx;
+	DataWrite<u32>(posmtx);
+	PRIM_LOG("posmtx: %d, ", posmtx);
+}
+
+static void LOADERDECL TexMtx_ReadDirect_UByte(VertexLoader* loader)
+{
+	loader->m_curtexmtx[loader->m_texmtxread] = DataReadU8() & 0x3f;
+
+	PRIM_LOG("texmtx%d: %d, ", loader->m_texmtxread, loader->m_curtexmtx[loader->m_texmtxread]);
+	loader->m_texmtxread++;
+}
+
+static void LOADERDECL TexMtx_Write_Float(VertexLoader* loader)
+{
+	DataWrite(float(loader->m_curtexmtx[loader->m_texmtxwrite++]));
+}
+
+static void LOADERDECL TexMtx_Write_Float2(VertexLoader* loader)
+{
+	DataWrite(0.f);
+	DataWrite(float(loader->m_curtexmtx[loader->m_texmtxwrite++]));
+}
+
+static void LOADERDECL TexMtx_Write_Float3(VertexLoader* loader)
+{
+	DataWrite(0.f);
+	DataWrite(0.f);
+	DataWrite(float(loader->m_curtexmtx[loader->m_texmtxwrite++]));
+}
+
+static void LOADERDECL SkipVertex(VertexLoader* loader)
+{
+	if (loader->m_vertexSkip)
+	{
+		// reset the output buffer
+		g_vertex_manager_write_ptr -= loader->m_native_vtx_decl.stride;
+
+		loader->m_skippedVertices++;
+	}
+}
+
+VertexLoader::VertexLoader(const TVtxDesc &vtx_desc, const VAT &vtx_attr)
+: VertexLoaderBase(vtx_desc, vtx_attr)
+{
+	VertexLoader_Normal::Init();
+
+	CompileVertexTranslator();
+
+	// generate frac factors
+	m_posScale = 1.0f / (1U << m_VtxAttr.PosFrac);
+	for (int i = 0; i < 8; i++)
+		m_tcScale[i] = 1.0f / (1U << m_VtxAttr.texCoord[i].Frac);
+}
+
+void VertexLoader::CompileVertexTranslator()
+{
+	m_VertexSize = 0;
+	const TVtxAttr &vtx_attr = m_VtxAttr;
+
+	// Reset pipeline
+	m_numPipelineStages = 0;
+
+	// Colors
+	const u64 col[2] = { m_VtxDesc.Color0, m_VtxDesc.Color1 };
+	// TextureCoord
+	const u64 tc[8] = {
+		m_VtxDesc.Tex0Coord, m_VtxDesc.Tex1Coord, m_VtxDesc.Tex2Coord, m_VtxDesc.Tex3Coord,
+		m_VtxDesc.Tex4Coord, m_VtxDesc.Tex5Coord, m_VtxDesc.Tex6Coord, m_VtxDesc.Tex7Coord
+	};
+
+	u32 components = 0;
+
+	// Position in pc vertex format.
+	int nat_offset = 0;
+
+	// Position Matrix Index
+	if (m_VtxDesc.PosMatIdx)
+	{
+		WriteCall(PosMtx_ReadDirect_UByte);
+		components |= VB_HAS_POSMTXIDX;
+		m_native_vtx_decl.posmtx.components = 4;
+		m_native_vtx_decl.posmtx.enable = true;
+		m_native_vtx_decl.posmtx.offset = nat_offset;
+		m_native_vtx_decl.posmtx.type = VAR_UNSIGNED_BYTE;
+		m_native_vtx_decl.posmtx.integer = true;
+		nat_offset += 4;
+		m_VertexSize += 1;
+	}
+
+	if (m_VtxDesc.Tex0MatIdx) { m_VertexSize += 1; components |= VB_HAS_TEXMTXIDX0; WriteCall(TexMtx_ReadDirect_UByte); }
+	if (m_VtxDesc.Tex1MatIdx) { m_VertexSize += 1; components |= VB_HAS_TEXMTXIDX1; WriteCall(TexMtx_ReadDirect_UByte); }
+	if (m_VtxDesc.Tex2MatIdx) { m_VertexSize += 1; components |= VB_HAS_TEXMTXIDX2; WriteCall(TexMtx_ReadDirect_UByte); }
+	if (m_VtxDesc.Tex3MatIdx) { m_VertexSize += 1; components |= VB_HAS_TEXMTXIDX3; WriteCall(TexMtx_ReadDirect_UByte); }
+	if (m_VtxDesc.Tex4MatIdx) { m_VertexSize += 1; components |= VB_HAS_TEXMTXIDX4; WriteCall(TexMtx_ReadDirect_UByte); }
+	if (m_VtxDesc.Tex5MatIdx) { m_VertexSize += 1; components |= VB_HAS_TEXMTXIDX5; WriteCall(TexMtx_ReadDirect_UByte); }
+	if (m_VtxDesc.Tex6MatIdx) { m_VertexSize += 1; components |= VB_HAS_TEXMTXIDX6; WriteCall(TexMtx_ReadDirect_UByte); }
+	if (m_VtxDesc.Tex7MatIdx) { m_VertexSize += 1; components |= VB_HAS_TEXMTXIDX7; WriteCall(TexMtx_ReadDirect_UByte); }
+
+	// Write vertex position loader
+	WriteCall(VertexLoader_Position::GetFunction(m_VtxDesc.Position, m_VtxAttr.PosFormat, m_VtxAttr.PosElements));
+
+	m_VertexSize += VertexLoader_Position::GetSize(m_VtxDesc.Position, m_VtxAttr.PosFormat, m_VtxAttr.PosElements);
+	int pos_elements = m_VtxAttr.PosElements + 2;
+	m_native_vtx_decl.position.components = pos_elements;
+	m_native_vtx_decl.position.enable = true;
+	m_native_vtx_decl.position.offset = nat_offset;
+	m_native_vtx_decl.position.type = VAR_FLOAT;
+	m_native_vtx_decl.position.integer = false;
+	nat_offset += pos_elements * sizeof(float);
+
+	// Normals
+	if (m_VtxDesc.Normal != NOT_PRESENT)
+	{
+		m_VertexSize += VertexLoader_Normal::GetSize(m_VtxDesc.Normal,
+			m_VtxAttr.NormalFormat, m_VtxAttr.NormalElements, m_VtxAttr.NormalIndex3);
+
+		TPipelineFunction pFunc = VertexLoader_Normal::GetFunction(m_VtxDesc.Normal,
+			m_VtxAttr.NormalFormat, m_VtxAttr.NormalElements, m_VtxAttr.NormalIndex3);
+
+		if (pFunc == nullptr)
+		{
+			PanicAlert("VertexLoader_Normal::GetFunction(%i %i %i %i) returned zero!",
+				(u32)m_VtxDesc.Normal, m_VtxAttr.NormalFormat,
+				m_VtxAttr.NormalElements, m_VtxAttr.NormalIndex3);
+		}
+		WriteCall(pFunc);
+
+		for (int i = 0; i < (vtx_attr.NormalElements ? 3 : 1); i++)
+		{
+			m_native_vtx_decl.normals[i].components = 3;
+			m_native_vtx_decl.normals[i].enable = true;
+			m_native_vtx_decl.normals[i].offset = nat_offset;
+			m_native_vtx_decl.normals[i].type = VAR_FLOAT;
+			m_native_vtx_decl.normals[i].integer = false;
+			nat_offset += 12;
+		}
+
+		components |= VB_HAS_NRM0;
+		if (m_VtxAttr.NormalElements == 1)
+			components |= VB_HAS_NRM1 | VB_HAS_NRM2;
+	}
+
+	for (int i = 0; i < 2; i++)
+	{
+		m_native_vtx_decl.colors[i].components = 4;
+		m_native_vtx_decl.colors[i].type = VAR_UNSIGNED_BYTE;
+		m_native_vtx_decl.colors[i].integer = false;
+		switch (col[i])
+		{
+		case NOT_PRESENT:
+			break;
+		case DIRECT:
+			switch (m_VtxAttr.color[i].Comp)
+			{
+			case FORMAT_16B_565:  m_VertexSize += 2; WriteCall(Color_ReadDirect_16b_565); break;
+			case FORMAT_24B_888:  m_VertexSize += 3; WriteCall(Color_ReadDirect_24b_888); break;
+			case FORMAT_32B_888x: m_VertexSize += 4; WriteCall(Color_ReadDirect_32b_888x); break;
+			case FORMAT_16B_4444: m_VertexSize += 2; WriteCall(Color_ReadDirect_16b_4444); break;
+			case FORMAT_24B_6666: m_VertexSize += 3; WriteCall(Color_ReadDirect_24b_6666); break;
+			case FORMAT_32B_8888: m_VertexSize += 4; WriteCall(Color_ReadDirect_32b_8888); break;
+			default: _assert_(0); break;
+			}
+			break;
+		case INDEX8:
+			m_VertexSize += 1;
+			switch (m_VtxAttr.color[i].Comp)
+			{
+			case FORMAT_16B_565:  WriteCall(Color_ReadIndex8_16b_565); break;
+			case FORMAT_24B_888:  WriteCall(Color_ReadIndex8_24b_888); break;
+			case FORMAT_32B_888x: WriteCall(Color_ReadIndex8_32b_888x); break;
+			case FORMAT_16B_4444: WriteCall(Color_ReadIndex8_16b_4444); break;
+			case FORMAT_24B_6666: WriteCall(Color_ReadIndex8_24b_6666); break;
+			case FORMAT_32B_8888: WriteCall(Color_ReadIndex8_32b_8888); break;
+			default: _assert_(0); break;
+			}
+			break;
+		case INDEX16:
+			m_VertexSize += 2;
+			switch (m_VtxAttr.color[i].Comp)
+			{
+			case FORMAT_16B_565:  WriteCall(Color_ReadIndex16_16b_565); break;
+			case FORMAT_24B_888:  WriteCall(Color_ReadIndex16_24b_888); break;
+			case FORMAT_32B_888x: WriteCall(Color_ReadIndex16_32b_888x); break;
+			case FORMAT_16B_4444: WriteCall(Color_ReadIndex16_16b_4444); break;
+			case FORMAT_24B_6666: WriteCall(Color_ReadIndex16_24b_6666); break;
+			case FORMAT_32B_8888: WriteCall(Color_ReadIndex16_32b_8888); break;
+			default: _assert_(0); break;
+			}
+			break;
+		}
+		// Common for the three bottom cases
+		if (col[i] != NOT_PRESENT)
+		{
+			components |= VB_HAS_COL0 << i;
+			m_native_vtx_decl.colors[i].offset = nat_offset;
+			m_native_vtx_decl.colors[i].enable = true;
+			nat_offset += 4;
+		}
+	}
+
+	// Texture matrix indices (remove if corresponding texture coordinate isn't enabled)
+	for (int i = 0; i < 8; i++)
+	{
+		m_native_vtx_decl.texcoords[i].offset = nat_offset;
+		m_native_vtx_decl.texcoords[i].type = VAR_FLOAT;
+		m_native_vtx_decl.texcoords[i].integer = false;
+
+		const int format = m_VtxAttr.texCoord[i].Format;
+		const int elements = m_VtxAttr.texCoord[i].Elements;
+
+		if (tc[i] != NOT_PRESENT)
+		{
+			_assert_msg_(VIDEO, DIRECT <= tc[i] && tc[i] <= INDEX16, "Invalid texture coordinates!\n(tc[i] = %d)", (u32)tc[i]);
+			_assert_msg_(VIDEO, FORMAT_UBYTE <= format && format <= FORMAT_FLOAT, "Invalid texture coordinates format!\n(format = %d)", format);
+			_assert_msg_(VIDEO, 0 <= elements && elements <= 1, "Invalid number of texture coordinates elements!\n(elements = %d)", elements);
+
+			components |= VB_HAS_UV0 << i;
+			WriteCall(VertexLoader_TextCoord::GetFunction(tc[i], format, elements));
+			m_VertexSize += VertexLoader_TextCoord::GetSize(tc[i], format, elements);
+		}
+
+		if (components & (VB_HAS_TEXMTXIDX0 << i))
+		{
+			m_native_vtx_decl.texcoords[i].enable = true;
+			if (tc[i] != NOT_PRESENT)
+			{
+				// if texmtx is included, texcoord will always be 3 floats, z will be the texmtx index
+				m_native_vtx_decl.texcoords[i].components = 3;
+				nat_offset += 12;
+				WriteCall(m_VtxAttr.texCoord[i].Elements ? TexMtx_Write_Float : TexMtx_Write_Float2);
+			}
+			else
+			{
+				m_native_vtx_decl.texcoords[i].components = 3;
+				nat_offset += 12;
+				WriteCall(TexMtx_Write_Float3);
+			}
+		}
+		else
+		{
+			if (tc[i] != NOT_PRESENT)
+			{
+				m_native_vtx_decl.texcoords[i].enable = true;
+				m_native_vtx_decl.texcoords[i].components = vtx_attr.texCoord[i].Elements ? 2 : 1;
+				nat_offset += 4 * (vtx_attr.texCoord[i].Elements ? 2 : 1);
+			}
+		}
+
+		if (tc[i] == NOT_PRESENT)
+		{
+			// if there's more tex coords later, have to write a dummy call
+			int j = i + 1;
+			for (; j < 8; ++j)
+			{
+				if (tc[j] != NOT_PRESENT)
+				{
+					WriteCall(VertexLoader_TextCoord::GetDummyFunction()); // important to get indices right!
+					break;
+				}
+			}
+			// tricky!
+			if (j == 8 && !((components & VB_HAS_TEXMTXIDXALL) & (VB_HAS_TEXMTXIDXALL << (i + 1))))
+			{
+				// no more tex coords and tex matrices, so exit loop
+				break;
+			}
+		}
+	}
+
+	// indexed position formats may skip a the vertex
+	if (m_VtxDesc.Position & 2)
+	{
+		WriteCall(SkipVertex);
+	}
+
+	m_native_components = components;
+	m_native_vtx_decl.stride = nat_offset;
+}
+
+void VertexLoader::WriteCall(TPipelineFunction func)
+{
+	m_PipelineStages[m_numPipelineStages++] = func;
+}
+
+int VertexLoader::RunVertices(DataReader src, DataReader dst, int count)
+{
+	g_vertex_manager_write_ptr = dst.GetPointer();
+	g_video_buffer_read_ptr = src.GetPointer();
+
+	m_numLoadedVertices += count;
+	m_skippedVertices = 0;
+
+	for (m_counter = count - 1; m_counter >= 0; m_counter--)
+	{
+		m_tcIndex = 0;
+		m_colIndex = 0;
+		m_texmtxwrite = m_texmtxread = 0;
+		for (int i = 0; i < m_numPipelineStages; i++)
+			m_PipelineStages[i](this);
+		PRIM_LOG("\n");
+	}
+
+	return count - m_skippedVertices;
+}