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https://github.com/dolphin-emu/dolphin.git
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7a89faf13f
for mapping, this buffer must be write only, so we cannot copy anthing. converting again needs more cpu, but should happen rarely
131 lines
3.5 KiB
C++
131 lines
3.5 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef _VERTEXLOADER_H
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#define _VERTEXLOADER_H
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// Top vertex loaders
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// Metroid Prime: P I16-flt N I16-s16 T0 I16-u16 T1 i16-flt
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#include <algorithm>
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#include <string>
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#include "Common.h"
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#include "CPMemory.h"
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#include "DataReader.h"
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#include "NativeVertexFormat.h"
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#include "x64Emitter.h"
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class VertexLoaderUID
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{
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u32 vid[5];
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size_t hash;
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public:
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VertexLoaderUID() {}
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void InitFromCurrentState(int vtx_attr_group) {
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vid[0] = g_VtxDesc.Hex & 0xFFFFFFFF;
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vid[1] = g_VtxDesc.Hex >> 32;
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vid[2] = g_VtxAttr[vtx_attr_group].g0.Hex & ~VAT_0_FRACBITS;
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vid[3] = g_VtxAttr[vtx_attr_group].g1.Hex & ~VAT_1_FRACBITS;
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vid[4] = g_VtxAttr[vtx_attr_group].g2.Hex & ~VAT_2_FRACBITS;
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hash = CalculateHash();
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}
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bool operator < (const VertexLoaderUID &other) const {
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// This is complex because of speed.
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if (vid[0] < other.vid[0])
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return true;
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else if (vid[0] > other.vid[0])
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return false;
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for (int i = 1; i < 5; ++i) {
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if (vid[i] < other.vid[i])
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return true;
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else if (vid[i] > other.vid[i])
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return false;
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}
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return false;
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}
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bool operator == (const VertexLoaderUID& rh) const {
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return hash == rh.hash && std::equal(vid, vid + sizeof(vid) / sizeof(vid[0]), rh.vid);
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}
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size_t GetHash() const {
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return hash;
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}
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private:
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size_t CalculateHash() {
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size_t h = -1;
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for (unsigned int i = 0; i < sizeof(vid) / sizeof(vid[0]); ++i) {
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h = h * 137 + vid[i];
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}
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return h;
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}
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};
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class VertexLoader : public Gen::XCodeBlock, NonCopyable
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{
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public:
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VertexLoader(const TVtxDesc &vtx_desc, const VAT &vtx_attr);
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~VertexLoader();
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int GetVertexSize() const {return m_VertexSize;}
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void RunVertices(int vtx_attr_group, int primitive, int count);
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void RunCompiledVertices(int vtx_attr_group, int primitive, int count, u8* Data);
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// For debugging / profiling
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void AppendToString(std::string *dest) const;
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int GetNumLoadedVerts() const { return m_numLoadedVertices; }
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private:
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enum
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{
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NRM_ZERO = 0,
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NRM_ONE = 1,
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NRM_THREE = 3,
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};
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int m_VertexSize; // number of bytes of a raw GC vertex. Computed by CompileVertexTranslator.
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// GC vertex format
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TVtxAttr m_VtxAttr; // VAT decoded into easy format
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TVtxDesc m_VtxDesc; // Not really used currently - or well it is, but could be easily avoided.
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// PC vertex format
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NativeVertexFormat *m_NativeFmt;
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int native_stride;
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// Pipeline. To be JIT compiled in the future.
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TPipelineFunction m_PipelineStages[64]; // TODO - figure out real max. it's lower.
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int m_numPipelineStages;
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const u8 *m_compiledCode;
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int m_numLoadedVertices;
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void SetVAT(u32 _group0, u32 _group1, u32 _group2);
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void CompileVertexTranslator();
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void ConvertVertices(int count);
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void WriteCall(TPipelineFunction);
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void WriteGetVariable(int bits, Gen::OpArg dest, void *address);
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void WriteSetVariable(int bits, void *address, Gen::OpArg dest);
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};
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#endif
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