mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-11-27 07:20:49 +00:00
122 lines
3.6 KiB
C++
122 lines
3.6 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 <algorithm>
|
|
#include "Common/CommonTypes.h"
|
|
#include "Common/Swap.h"
|
|
#include "GPU/ge_constants.h"
|
|
|
|
class IndexGenerator {
|
|
public:
|
|
void Setup(u16 *indexptr);
|
|
void Reset() {
|
|
prim_ = GE_PRIM_INVALID;
|
|
count_ = 0;
|
|
index_ = 0;
|
|
seenPrims_ = 0;
|
|
pureCount_ = 0;
|
|
this->inds_ = indsBase_;
|
|
}
|
|
|
|
bool PrimCompatible(int prim1, int prim2) {
|
|
if (prim1 == GE_PRIM_INVALID || prim2 == GE_PRIM_KEEP_PREVIOUS)
|
|
return true;
|
|
return indexedPrimitiveType[prim1] == indexedPrimitiveType[prim2];
|
|
}
|
|
|
|
bool PrimCompatible(int prim) const {
|
|
if (prim_ == GE_PRIM_INVALID || prim == GE_PRIM_KEEP_PREVIOUS)
|
|
return true;
|
|
return indexedPrimitiveType[prim] == prim_;
|
|
}
|
|
|
|
GEPrimitiveType Prim() const { return prim_; }
|
|
|
|
void AddPrim(int prim, int vertexCount);
|
|
void TranslatePrim(int prim, int numInds, const u8 *inds, int indexOffset);
|
|
void TranslatePrim(int prim, int numInds, const u16_le *inds, int indexOffset);
|
|
void TranslatePrim(int prim, int numInds, const u32_le *inds, int indexOffset);
|
|
|
|
void Advance(int numVerts) {
|
|
index_ += numVerts;
|
|
}
|
|
|
|
void SetIndex(int ind) { index_ = ind; }
|
|
int MaxIndex() const { return index_; }
|
|
int VertexCount() const { return count_; }
|
|
bool Empty() const { return index_ == 0; }
|
|
int SeenPrims() const { return seenPrims_; }
|
|
int PureCount() const { return pureCount_; }
|
|
bool SeenOnlyPurePrims() const {
|
|
return seenPrims_ == (1 << GE_PRIM_TRIANGLES) ||
|
|
seenPrims_ == (1 << GE_PRIM_LINES) ||
|
|
seenPrims_ == (1 << GE_PRIM_POINTS) ||
|
|
seenPrims_ == (1 << GE_PRIM_TRIANGLE_STRIP);
|
|
}
|
|
|
|
private:
|
|
// Points (why index these? code simplicity)
|
|
void AddPoints(int numVerts);
|
|
// Triangles
|
|
void AddList(int numVerts);
|
|
void AddStrip(int numVerts);
|
|
void AddFan(int numVerts);
|
|
// Lines
|
|
void AddLineList(int numVerts);
|
|
void AddLineStrip(int numVerts);
|
|
// Rectangles
|
|
void AddRectangles(int numVerts);
|
|
|
|
// These translate already indexed lists
|
|
template <class ITypeLE, int flag>
|
|
void TranslatePoints(int numVerts, const ITypeLE *inds, int indexOffset);
|
|
template <class ITypeLE, int flag>
|
|
void TranslateList(int numVerts, const ITypeLE *inds, int indexOffset);
|
|
template <class ITypeLE, int flag>
|
|
inline void TranslateLineList(int numVerts, const ITypeLE *inds, int indexOffset);
|
|
template <class ITypeLE, int flag>
|
|
inline void TranslateLineStrip(int numVerts, const ITypeLE *inds, int indexOffset);
|
|
|
|
template <class ITypeLE, int flag>
|
|
void TranslateStrip(int numVerts, const ITypeLE *inds, int indexOffset);
|
|
template <class ITypeLE, int flag>
|
|
void TranslateFan(int numVerts, const ITypeLE *inds, int indexOffset);
|
|
|
|
template <class ITypeLE, int flag>
|
|
inline void TranslateRectangles(int numVerts, const ITypeLE *inds, int indexOffset);
|
|
|
|
enum {
|
|
SEEN_INDEX8 = 1 << 16,
|
|
SEEN_INDEX16 = 1 << 17,
|
|
SEEN_INDEX32 = 1 << 18,
|
|
};
|
|
|
|
u16 *indsBase_;
|
|
u16 *inds_;
|
|
int index_;
|
|
int count_;
|
|
int pureCount_;
|
|
GEPrimitiveType prim_;
|
|
int seenPrims_;
|
|
|
|
static const u8 indexedPrimitiveType[7];
|
|
};
|
|
|