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softgpu: Fast path triangles without textures.

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The fast path may still be useful in this case.
This commit is contained in:
Unknown W. Brackets 2021-11-14 09:00:07 -08:00
parent 5bb6245b1f
commit 361c8f966c
1 changed files with 40 additions and 26 deletions
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66
GPU/Software/RasterizerRectangle.cpp
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@ -279,44 +279,58 @@ bool RectangleFastPath(const VertexData &v0, const VertexData &v1) {
}
bool DetectRectangleFromThroughModeStrip(const VertexData data[4]) {
// We'll only do this when the color is flat.
if (!(data[0].color0 == data[1].color0))
return false;
if (!(data[1].color0 == data[2].color0))
return false;
if (!(data[2].color0 == data[3].color0))
return false;
// OK, now let's look at data to detect rectangles. There are a few possibilities
// but we focus on Darkstalkers for now.
if (data[0].screenpos.x == data[1].screenpos.x &&
data[0].screenpos.y == data[2].screenpos.y &&
data[2].screenpos.x == data[3].screenpos.x &&
data[1].screenpos.y == data[3].screenpos.y &&
data[1].screenpos.y > data[0].screenpos.y && // Avoid rotation handling
data[2].screenpos.x > data[0].screenpos.x &&
data[0].texturecoords.x == data[1].texturecoords.x &&
data[0].texturecoords.y == data[2].texturecoords.y &&
data[2].texturecoords.x == data[3].texturecoords.x &&
data[1].texturecoords.y == data[3].texturecoords.y &&
data[1].texturecoords.y > data[0].texturecoords.y &&
data[2].texturecoords.x > data[0].texturecoords.x &&
data[0].color0 == data[1].color0 &&
data[1].color0 == data[2].color0 &&
data[2].color0 == data[3].color0) {
// It's a rectangle!
return true;
data[1].screenpos.y > data[0].screenpos.y &&
data[2].screenpos.x > data[0].screenpos.x) {
// Okay, this is in the shape of a triangle, but what about rotation/texture?
if (!gstate.isTextureMapEnabled())
return true;
if (data[0].texturecoords.x == data[1].texturecoords.x &&
data[0].texturecoords.y == data[2].texturecoords.y &&
data[2].texturecoords.x == data[3].texturecoords.x &&
data[1].texturecoords.y == data[3].texturecoords.y &&
data[1].texturecoords.y > data[0].texturecoords.y &&
data[2].texturecoords.x > data[0].texturecoords.x) {
// It's a rectangle!
return true;
}
return false;
}
// There's the other vertex order too...
if (data[0].screenpos.x == data[2].screenpos.x &&
data[0].screenpos.y == data[1].screenpos.y &&
data[1].screenpos.x == data[3].screenpos.x &&
data[2].screenpos.y == data[3].screenpos.y &&
data[2].screenpos.y > data[0].screenpos.y && // Avoid rotation handling
data[1].screenpos.x > data[0].screenpos.x &&
data[0].texturecoords.x == data[2].texturecoords.x &&
data[0].texturecoords.y == data[1].texturecoords.y &&
data[1].texturecoords.x == data[3].texturecoords.x &&
data[2].texturecoords.y == data[3].texturecoords.y &&
data[2].texturecoords.y > data[0].texturecoords.y &&
data[1].texturecoords.x > data[0].texturecoords.x &&
data[0].color0 == data[1].color0 &&
data[1].color0 == data[2].color0 &&
data[2].color0 == data[3].color0) {
// It's a rectangle!
return true;
data[2].screenpos.y > data[0].screenpos.y &&
data[1].screenpos.x > data[0].screenpos.x) {
// Okay, this is in the shape of a triangle, but what about rotation/texture?
if (!gstate.isTextureMapEnabled())
return true;
if (data[0].texturecoords.x == data[2].texturecoords.x &&
data[0].texturecoords.y == data[1].texturecoords.y &&
data[1].texturecoords.x == data[3].texturecoords.x &&
data[2].texturecoords.y == data[3].texturecoords.y &&
data[2].texturecoords.y > data[0].texturecoords.y &&
data[1].texturecoords.x > data[0].texturecoords.x) {
// It's a rectangle!
return true;
}
return false;
}
return false;
}