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softgpu: Refactor triangle cull processing.

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Unknown W. Brackets committed 2022-09-11 22:39:32 -07:00
1 parent 75efcd9dfd
commit ce4fee7373
2 files changed
+25 -36
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GPU/Software/TransformUnit.cpp
+18 -36
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@@ -447,12 +447,6 @@ SoftDirty TransformUnit::GetDirty() {
return binner_->GetDirty();
}
enum class CullType {
CW,
CCW,
OFF,
};
void TransformUnit::SubmitPrimitive(const void* vertices, const void* indices, GEPrimitiveType prim_type, int vertex_count, u32 vertex_type, int *bytesRead, SoftwareDrawEngine *drawEngine)
{
VertexDecoder &vdecoder = *drawEngine->FindVertexDecoder(vertex_type);
@@ -541,17 +535,8 @@ void TransformUnit::SubmitPrimitive(const void* vertices, const void* indices, G
switch (prim_type) {
case GE_PRIM_TRIANGLES:
{
if (cullType == CullType::OFF) {
Clipper::ProcessTriangle(data_[0], data_[1], data_[2], data_[2], *binner_);
Clipper::ProcessTriangle(data_[2], data_[1], data_[0], data_[2], *binner_);
} else if (cullType == CullType::CW) {
Clipper::ProcessTriangle(data_[2], data_[1], data_[0], data_[2], *binner_);
} else {
Clipper::ProcessTriangle(data_[0], data_[1], data_[2], data_[2], *binner_);
}
SendTriangle(cullType, &data_[0]);
break;
}
case GE_PRIM_LINES:
Clipper::ProcessLine(data_[0], data_[1], *binner_);
@@ -688,16 +673,9 @@ void TransformUnit::SubmitPrimitive(const void* vertices, const void* indices, G
continue;
}
if (cullType == CullType::OFF) {
Clipper::ProcessTriangle(data_[0], data_[1], data_[2], data_[provoking_index], *binner_);
Clipper::ProcessTriangle(data_[2], data_[1], data_[0], data_[provoking_index], *binner_);
} else if ((!(int)cullType) ^ ((data_index_ - 1) % 2)) {
// We need to reverse the vertex order for each second primitive,
// but we additionally need to do that for every primitive if CCW cullmode is used.
Clipper::ProcessTriangle(data_[2], data_[1], data_[0], data_[provoking_index], *binner_);
} else {
Clipper::ProcessTriangle(data_[0], data_[1], data_[2], data_[provoking_index], *binner_);
}
int wind = (data_index_ - 1) % 2;
CullType altCullType = cullType == CullType::OFF ? cullType : CullType((int)cullType ^ wind);
SendTriangle(altCullType, &data_[0], provoking_index);
}
break;
}
@@ -764,16 +742,9 @@ void TransformUnit::SubmitPrimitive(const void* vertices, const void* indices, G
continue;
}
if (cullType == CullType::OFF) {
Clipper::ProcessTriangle(data_[0], data_[1], data_[2], data_[provoking_index], *binner_);
Clipper::ProcessTriangle(data_[2], data_[1], data_[0], data_[provoking_index], *binner_);
} else if ((!(int)cullType) ^ ((data_index_ - 1) % 2)) {
// We need to reverse the vertex order for each second primitive,
// but we additionally need to do that for every primitive if CCW cullmode is used.
Clipper::ProcessTriangle(data_[2], data_[1], data_[0], data_[provoking_index], *binner_);
} else {
Clipper::ProcessTriangle(data_[0], data_[1], data_[2], data_[provoking_index], *binner_);
}
int wind = (data_index_ - 1) % 2;
CullType altCullType = cullType == CullType::OFF ? cullType : CullType((int)cullType ^ wind);
SendTriangle(altCullType, &data_[0], provoking_index);
}
break;
}
@@ -784,6 +755,17 @@ void TransformUnit::SubmitPrimitive(const void* vertices, const void* indices, G
}
}
void TransformUnit::SendTriangle(CullType cullType, const VertexData *verts, int provoking) {
if (cullType == CullType::OFF) {
Clipper::ProcessTriangle(verts[0], verts[1], verts[2], verts[provoking], *binner_);
Clipper::ProcessTriangle(verts[2], verts[1], verts[0], verts[provoking], *binner_);
} else if (cullType == CullType::CW) {
Clipper::ProcessTriangle(verts[2], verts[1], verts[0], verts[provoking], *binner_);
} else {
Clipper::ProcessTriangle(verts[0], verts[1], verts[2], verts[provoking], *binner_);
}
}
void TransformUnit::Flush(const char *reason) {
binner_->Flush(reason);
GPUDebug::NotifyDraw();