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softgpu: Correct UV rotation for transformed rects.

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Unknown W. Brackets 2022-01-20 20:33:29 -08:00
parent 5a6bf8b435
commit 648b71616e
1 changed files with 4 additions and 2 deletions
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6
GPU/Software/Clipper.cpp
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@ -117,7 +117,7 @@ inline float clip_dotprod(const VertexData &vert, float A, float B, float C, flo
} \
}
static void RotateUVThrough(const VertexData &tl, const VertexData &br, VertexData &tr, VertexData &bl) {
static void RotateUV(const VertexData &tl, const VertexData &br, VertexData &tr, VertexData &bl) {
const int x1 = tl.screenpos.x;
const int x2 = br.screenpos.x;
const int y1 = tl.screenpos.y;
@ -194,6 +194,8 @@ void ProcessRect(const VertexData &v0, const VertexData &v1, BinManager &binner)
bottomright = &buf[i];
}
RotateUV(*topleft, *bottomright, *topright, *bottomleft);
// Four triangles to do backfaces as well. Two of them will get backface culled.
ProcessTriangleInternal(*topleft, *topright, *bottomright, buf[3], binner, true);
ProcessTriangleInternal(*bottomright, *topright, *topleft, buf[3], binner, true);
@ -241,7 +243,7 @@ void ProcessRect(const VertexData &v0, const VertexData &v1, BinManager &binner)
bottomright = &buf[i];
}
RotateUVThrough(v0, v1, *topright, *bottomleft);
RotateUV(v0, v1, *topright, *bottomleft);
if (gstate.isModeClear()) {
binner.AddClearRect(v0, v1);