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Initial megacommit.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
hrydgard
2008-07-12 17:40:22 +00:00
parent a3be5d89ae
commit 775dc8a9c0
1920 changed files with 734652 additions and 0 deletions
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113
Source/Plugins/Plugin_VideoDX9/Src/IndexGenerator.cpp Normal file
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#include "stdafx.h"
#include "IndexGenerator.h"
/*
*
QUAD simulator
0 2 4 6
1 3 5 7
021231 243453
*/
void IndexGenerator::Start(unsigned short *startptr)
{
ptr=startptr;
index=0;
numPrims=0;
}
void IndexGenerator::AddList(int numVerts)
{
int numTris = numVerts/3;
if (numTris<=0) return;
for (int i=0; i<numTris; i++)
{
*ptr++ = index+i*3;
*ptr++ = index+i*3+1;
*ptr++ = index+i*3+2;
}
index += numVerts;
numPrims += numTris;
}
void IndexGenerator::AddStrip(int numVerts)
{
int numTris = numVerts-2;
if (numTris<=0) return;
bool wind = false;
for (int i=0; i<numTris; i++)
{
*ptr++ = index+i;
*ptr++ = index+i+(wind?2:1);
*ptr++ = index+i+(wind?1:2);
wind = !wind;
}
index += numVerts;
numPrims += numTris;
}
void IndexGenerator::AddLineList(int numVerts)
{
int numLines= numVerts/2;
if (numLines<=0) return;
for (int i=0; i<numLines; i++)
{
*ptr++ = index+i*2;
*ptr++ = index+i*2+1;
}
index += numVerts;
numPrims += numLines;
}
void IndexGenerator::AddLineStrip(int numVerts)
{
int numLines = numVerts-1;
if (numLines<=0) return;
for (int i=0; i<numLines; i++)
{
*ptr++ = index+i;
*ptr++ = index+i+1;
}
index += numVerts;
numPrims += numLines;
}
void IndexGenerator::AddFan(int numVerts)
{
int numTris = numVerts-2;
if (numTris<=0) return;
for (int i=0; i<numTris; i++)
{
*ptr++ = index;
*ptr++ = index+i+1;
*ptr++ = index+i+2;
}
index += numVerts;
numPrims += numTris;
}
void IndexGenerator::AddQuads(int numVerts)
{
int numTris = (numVerts/4)*2;
if (numTris<=0) return;
for (int i=0; i<numTris/2; i++)
{
*ptr++=index+i*4;
*ptr++=index+i*4+1;
*ptr++=index+i*4+3;
*ptr++=index+i*4+1;
*ptr++=index+i*4+2;
*ptr++=index+i*4+3;
}
index += numVerts;
numPrims += numTris;
}
void IndexGenerator::AddPointList(int numVerts)
{
index += numVerts;
}