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samplerjit: Lookup both mip tex values.

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Unknown W. Brackets 2021-12-28 16:22:54 -08:00
parent 6b55d328e5
commit 940e6bb1d7
4 changed files with 94 additions and 37 deletions
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11
GPU/Software/Sampler.cpp
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@ -557,7 +557,7 @@ static inline Vec4IntResult SOFTRAST_CALL GetTexelCoordinatesQuadT(int level, fl
return ApplyTexelClampQuadT(gstate.isTexCoordClampedT(), base_v, height);
}
static Vec4IntResult SOFTRAST_CALL SampleLinear(float s, float t, int x, int y, Vec4IntArg prim_color, const u8 **tptr, const int *bufw, int texlevel, int levelFrac) {
static Vec4IntResult SOFTRAST_CALL SampleLinearLevel(float s, float t, int x, int y, const u8 **tptr, const int *bufw, int texlevel) {
int frac_u, frac_v;
const Vec4<int> u = GetTexelCoordinatesQuadS(texlevel, s, frac_u, x);
const Vec4<int> v = GetTexelCoordinatesQuadT(texlevel, t, frac_v, y);
@ -572,4 +572,13 @@ static Vec4IntResult SOFTRAST_CALL SampleLinear(float s, float t, int x, int y,
return ToVec4IntResult((top * (0x10 - frac_v) + bot * frac_v) / (16 * 16));
}
static Vec4IntResult SOFTRAST_CALL SampleLinear(float s, float t, int x, int y, Vec4IntArg prim_color, const u8 **tptr, const int *bufw, int texlevel, int levelFrac) {
Vec4<int> c0 = SampleLinearLevel(s, t, x, y, tptr, bufw, texlevel);
if (levelFrac) {
const Vec4<int> c1 = SampleLinearLevel(s, t, x, y, tptr + 1, bufw + 1, texlevel + 1);
c0 = (c1 * levelFrac + c0 * (16 - levelFrac)) / 16;
}
return ToVec4IntResult(c0);
}
};