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Optimize IndexGenerator::AddPrim() funcs for MSVC.

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Reduces profile from ~5.4% to ~1.6% (with vertex cache off) in
Senjou no Valkyria 3.  Similar to the TranslatePrim() funcs.
This commit is contained in:
Unknown W. Brackets 2013-11-04 22:49:28 -08:00
parent b1b4679fe6
commit e435b81281
1 changed files with 41 additions and 21 deletions
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62
GPU/Common/IndexGenerator.cpp
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@ -69,8 +69,11 @@ void IndexGenerator::AddPrim(int prim, int vertexCount) {
}
void IndexGenerator::AddPoints(int numVerts) {
u16 *outInds = inds_;
const int startIndex = index_;
for (int i = 0; i < numVerts; i++)
*inds_++ = index_ + i;
*outInds++ = startIndex + i;
inds_ = outInds;
// ignore overflow verts
index_ += numVerts;
count_ += numVerts;
@ -79,12 +82,14 @@ void IndexGenerator::AddPoints(int numVerts) {
}
void IndexGenerator::AddList(int numVerts) {
u16 *outInds = inds_;
const int startIndex = index_;
for (int i = 0; i < numVerts; i += 3) {
*inds_++ = index_ + i;
*inds_++ = index_ + i + 1;
*inds_++ = index_ + i + 2;
*outInds++ = startIndex + i;
*outInds++ = startIndex + i + 1;
*outInds++ = startIndex + i + 2;
}
inds_ = outInds;
// ignore overflow verts
index_ += numVerts;
count_ += numVerts;
@ -94,14 +99,17 @@ void IndexGenerator::AddList(int numVerts) {
void IndexGenerator::AddStrip(int numVerts) {
int wind = 1;
int numTris = numVerts - 2;
const int numTris = numVerts - 2;
u16 *outInds = inds_;
const int startIndex = index_;
for (int i = 0; i < numTris; i++) {
int ibase = index_ + i;
*inds_++ = ibase;
*inds_++ = ibase + wind;
const int ibase = startIndex + i;
*outInds++ = ibase;
*outInds++ = ibase + wind;
wind ^= 3; // toggle between 1 and 2
*inds_++ = ibase + wind;
*outInds++ = ibase + wind;
}
inds_ = outInds;
index_ += numVerts;
count_ += numTris * 3;
// This is so we can detect one single strip by just looking at seenPrims_.
@ -118,12 +126,15 @@ void IndexGenerator::AddStrip(int numVerts) {
}
void IndexGenerator::AddFan(int numVerts) {
int numTris = numVerts - 2;
const int numTris = numVerts - 2;
u16 *outInds = inds_;
const int startIndex = index_;
for (int i = 0; i < numTris; i++) {
*inds_++ = index_;
*inds_++ = index_ + i + 1;
*inds_++ = index_ + i + 2;
*outInds++ = startIndex;
*outInds++ = startIndex + i + 1;
*outInds++ = startIndex + i + 2;
}
inds_ = outInds;
index_ += numVerts;
count_ += numTris * 3;
prim_ = GE_PRIM_TRIANGLES;
@ -132,10 +143,13 @@ void IndexGenerator::AddFan(int numVerts) {
//Lines
void IndexGenerator::AddLineList(int numVerts) {
u16 *outInds = inds_;
const int startIndex = index_;
for (int i = 0; i < numVerts; i += 2) {
*inds_++ = index_ + i;
*inds_++ = index_ + i + 1;
*outInds++ = startIndex + i;
*outInds++ = startIndex + i + 1;
}
inds_ = outInds;
index_ += numVerts;
count_ += numVerts;
prim_ = GE_PRIM_LINES;
@ -143,11 +157,14 @@ void IndexGenerator::AddLineList(int numVerts) {
}
void IndexGenerator::AddLineStrip(int numVerts) {
int numLines = numVerts - 1;
const int numLines = numVerts - 1;
u16 *outInds = inds_;
const int startIndex = index_;
for (int i = 0; i < numLines; i++) {
*inds_++ = index_ + i;
*inds_++ = index_ + i + 1;
*outInds++ = startIndex + i;
*outInds++ = startIndex + i + 1;
}
inds_ = outInds;
index_ += numVerts;
count_ += numLines * 2;
prim_ = GE_PRIM_LINES;
@ -155,10 +172,13 @@ void IndexGenerator::AddLineStrip(int numVerts) {
}
void IndexGenerator::AddRectangles(int numVerts) {
u16 *outInds = inds_;
const int startIndex = index_;
for (int i = 0; i < numVerts; i += 2) {
*inds_++ = index_ + i;
*inds_++ = index_ + i + 1;
*outInds++ = startIndex + i;
*outInds++ = startIndex + i + 1;
}
inds_ = outInds;
index_ += numVerts;
count_ += numVerts;
prim_ = GE_PRIM_RECTANGLES;