ppsspp/GPU/GLES/VertexDecoder.h

249 lines
5.6 KiB
C++

// Copyright (c) 2012- PPSSPP 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 or later versions.
// 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 git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#pragma once
#include "base/basictypes.h"
#ifdef ARM
#include "Common/ArmEmitter.h"
#else
#include "Common/x64Emitter.h"
#endif
#include "Globals.h"
#include "Core/Reporting.h"
#include "GPU/GPUState.h"
#include "GPU/Common/VertexDecoderCommon.h"
class VertexDecoder;
class VertexDecoderJitCache;
typedef void (VertexDecoder::*StepFunction)() const;
typedef void (*JittedVertexDecoder)(const u8 *src, u8 *dst, int count);
// Right now
// - compiles into list of called functions
// Future TODO
// - will compile into lighting fast specialized x86 and ARM
class VertexDecoder
{
public:
VertexDecoder();
// A jit cache is not mandatory, we don't use it in the sw renderer
void SetVertexType(u32 vtype, VertexDecoderJitCache *jitCache = 0);
u32 VertexType() const { return fmt_; }
const DecVtxFormat &GetDecVtxFmt() { return decFmt; }
void DecodeVerts(u8 *decoded, const void *verts, int indexLowerBound, int indexUpperBound) const;
bool hasColor() const { return col != 0; }
bool hasTexcoord() const { return tc != 0; }
int VertexSize() const { return size; } // PSP format size
void Step_WeightsU8() const;
void Step_WeightsU16() const;
void Step_WeightsFloat() const;
void Step_WeightsU8Skin() const;
void Step_WeightsU16Skin() const;
void Step_WeightsFloatSkin() const;
void Step_TcU8() const;
void Step_TcU16() const;
void Step_TcFloat() const;
void Step_TcU8Prescale() const;
void Step_TcU16Prescale() const;
void Step_TcFloatPrescale() const;
void Step_TcU16Double() const;
void Step_TcU16Through() const;
void Step_TcU16ThroughDouble() const;
void Step_TcFloatThrough() const;
void Step_Color4444() const;
void Step_Color565() const;
void Step_Color5551() const;
void Step_Color8888() const;
void Step_Color4444Morph() const;
void Step_Color565Morph() const;
void Step_Color5551Morph() const;
void Step_Color8888Morph() const;
void Step_NormalS8() const;
void Step_NormalS16() const;
void Step_NormalFloat() const;
void Step_NormalS8Skin() const;
void Step_NormalS16Skin() const;
void Step_NormalFloatSkin() const;
void Step_NormalS8Morph() const;
void Step_NormalS16Morph() const;
void Step_NormalFloatMorph() const;
void Step_PosS8() const;
void Step_PosS16() const;
void Step_PosFloat() const;
void Step_PosS8Skin() const;
void Step_PosS16Skin() const;
void Step_PosFloatSkin() const;
void Step_PosS8Morph() const;
void Step_PosS16Morph() const;
void Step_PosFloatMorph() const;
void Step_PosS8Through() const;
void Step_PosS16Through() const;
void Step_PosFloatThrough() const;
void ResetStats() {
memset(stats_, 0, sizeof(stats_));
}
void IncrementStat(int stat, int amount) {
stats_[stat] += amount;
}
// output must be big for safety.
// Returns number of chars written.
// Ugly for speed.
int ToString(char *output) const;
// Mutable decoder state
mutable u8 *decoded_;
mutable const u8 *ptr_;
// "Immutable" state, set at startup
// The decoding steps
StepFunction steps_[5];
int numSteps_;
u32 fmt_;
DecVtxFormat decFmt;
bool throughmode;
int biggest;
int size;
int onesize_;
int weightoff;
int tcoff;
int coloff;
int nrmoff;
int posoff;
int tc;
int col;
int nrm;
int pos;
int weighttype;
int idx;
int morphcount;
int nweights;
int stats_[NUM_VERTEX_DECODER_STATS];
JittedVertexDecoder jitted_;
friend class VertexDecoderJitCache;
};
// A compiled vertex decoder takes the following arguments (C calling convention):
// u8 *src, u8 *dst, int count
//
// x86:
// src is placed in esi and dst in edi
// for every vertex, we step esi and edi forwards by the two vertex sizes
// all movs are done relative to esi and edi
//
// that's it!
#ifdef ARM
class VertexDecoderJitCache : public ArmGen::ARMXCodeBlock {
#else
class VertexDecoderJitCache : public Gen::XCodeBlock {
#endif
public:
VertexDecoderJitCache();
// Returns a pointer to the code to run.
JittedVertexDecoder Compile(const VertexDecoder &dec);
void Jit_WeightsU8();
void Jit_WeightsU16();
void Jit_WeightsFloat();
void Jit_WeightsU8Skin();
void Jit_WeightsU16Skin();
void Jit_WeightsFloatSkin();
void Jit_TcU8();
void Jit_TcU16();
void Jit_TcFloat();
void Jit_TcU8Prescale();
void Jit_TcU16Prescale();
void Jit_TcFloatPrescale();
void Jit_TcU16Double();
void Jit_TcU16ThroughDouble();
void Jit_TcU16Through();
void Jit_TcFloatThrough();
void Jit_Color8888();
void Jit_Color4444();
void Jit_Color565();
void Jit_Color5551();
void Jit_NormalS8();
void Jit_NormalS16();
void Jit_NormalFloat();
void Jit_NormalS8Skin();
void Jit_NormalS16Skin();
void Jit_NormalFloatSkin();
void Jit_PosS8();
void Jit_PosS16();
void Jit_PosFloat();
void Jit_PosS8Through();
void Jit_PosS16Through();
void Jit_PosS8Skin();
void Jit_PosS16Skin();
void Jit_PosFloatSkin();
private:
bool CompileStep(const VertexDecoder &dec, int i);
void Jit_ApplyWeights();
void Jit_WriteMatrixMul(int outOff, bool pos);
const VertexDecoder *dec_;
};