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SoftGPU: Don't wrap negative positions.

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Haven't fully verified this, but without this, Gods Eater Burst's bloom
doesn't work, since -1,-1 maps to 1023,1023 so everything is clipped.
This commit is contained in:
Unknown W. Brackets 2017-05-13 17:28:38 -07:00
parent b2d3058386
commit 01076dd959
2 changed files with 7 additions and 7 deletions
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4
GPU/Software/TransformUnit.cpp
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@ -97,8 +97,8 @@ DrawingCoords TransformUnit::ScreenToDrawing(const ScreenCoords& coords)
{
DrawingCoords ret;
// TODO: What to do when offset > coord?
ret.x = (((u32)coords.x - gstate.getOffsetX16()) / 16) & 0x3ff;
ret.y = (((u32)coords.y - gstate.getOffsetY16()) / 16) & 0x3ff;
ret.x = ((s32)coords.x - gstate.getOffsetX16()) / 16;
ret.y = ((s32)coords.y - gstate.getOffsetY16()) / 16;
ret.z = coords.z;
return ret;
}

10
GPU/Software/TransformUnit.h
View file

@ -62,17 +62,17 @@ struct ScreenCoords
struct DrawingCoords
{
DrawingCoords() {}
DrawingCoords(u10 x, u10 y, u16 z) : x(x), y(y), z(z) {}
DrawingCoords(s16 x, s16 y, u16 z) : x(x), y(y), z(z) {}
u10 x;
u10 y;
s16 x;
s16 y;
u16 z;
Vec2<u10> xy() const { return Vec2<u10>(x, y); }
Vec2<s16> xy() const { return Vec2<s16>(x, y); }
DrawingCoords operator * (const float t) const
{
return DrawingCoords((u10)(x * t), (u10)(y * t), (u16)(z * t));
return DrawingCoords((s16)(x * t), (s16)(y * t), (u16)(z * t));
}
DrawingCoords operator + (const DrawingCoords& oth) const