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Echochrome lines: Remove UV offsets, avoid reading the destination (much better codegen)

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Henrik Rydgård 2022-06-11 11:22:29 +02:00
parent c82d8a04e0
commit 751afde7c9
2 changed files with 14 additions and 23 deletions
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30
GPU/Common/SoftwareTransformCommon.cpp
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@ -786,33 +786,17 @@ void SoftwareTransform::ExpandLines(int vertexCount, int &maxIndex, u16 *&inds,
float vertical = transVtx2.y - transVtx1.y;
Vec2f addWidth = Vec2f(-vertical, horizontal).Normalized();
float xoff = addWidth.x * dx;
float yoff = addWidth.y * dy;
// bottom right
trans[0] = transVtx2;
trans[0].x += addWidth.x * dx;
trans[0].y += addWidth.y * dy;
trans[0].u += addWidth.x * du;
trans[0].v += addWidth.y * dv;
trans[0].CopyFromWithOffset(transVtx2, xoff, yoff);
// top right
trans[1] = transVtx1;
trans[1].x += addWidth.x * dx;
trans[1].y += addWidth.y * dy;
trans[1].u += addWidth.x * du;
trans[1].v += addWidth.y * dv;
trans[1].CopyFromWithOffset(transVtx1, xoff, yoff);
// top left
trans[2] = transVtx1;
trans[2].x -= addWidth.x * dx;
trans[2].y -= addWidth.y * dy;
trans[2].u -= addWidth.x * du;
trans[2].v -= addWidth.y * dv;
trans[2].CopyFromWithOffset(transVtx1, -xoff, -yoff);
// bottom left
trans[3] = transVtx2;
trans[3].x -= addWidth.x * dx;
trans[3].y -= addWidth.y * dy;
trans[3].u -= addWidth.x * du;
trans[3].v -= addWidth.y * dv;
trans[3].CopyFromWithOffset(transVtx2, -xoff, -yoff);
// Triangle: BR-TR-TL
indsOut[0] = i * 2 + 0;

7
GPU/GPUCommon.h
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@ -57,6 +57,13 @@ struct TransformedVertex {
u8 color1[4]; // prelit
u32 color1_32;
};
void CopyFromWithOffset(const TransformedVertex &other, float xoff, float yoff) {
this->x = other.x + xoff;
this->y = other.y + yoff;
memcpy(&this->z, &other.z, sizeof(*this) - sizeof(float) * 2);
}
};
class GPUCommon : public GPUInterface, public GPUDebugInterface {