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Don't fix chroma loopfilter masks for grayscale content

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Fixes #64.
This commit is contained in:
Ronald S. Bultje 2018-10-24 13:03:39 -04:00
parent 9cdb54c51b
commit e6d7400b07
1 changed files with 18 additions and 14 deletions
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32
src/lf_apply.c
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@ -178,14 +178,16 @@ void bytefn(dav1d_loopfilter_sbrow)(const Dav1dFrameContext *const f,
y_hmask[imin(idx, lpf_y[y - starty4])] |= mask;
}
uint32_t *const uv_hmask = lflvl[x].filter_uv[0][cbx4];
for (unsigned y = starty4 >> ss_ver, uv_mask = 1 << y; y < uv_endy4;
y++, uv_mask <<= 1)
{
const int idx = !!(uv_hmask[1] & uv_mask);
uv_hmask[1] &= ~uv_mask;
uv_hmask[0] &= ~uv_mask;
uv_hmask[imin(idx, lpf_uv[y - (starty4 >> ss_ver)])] |= uv_mask;
if (f->cur.p.p.layout != DAV1D_PIXEL_LAYOUT_I400) {
uint32_t *const uv_hmask = lflvl[x].filter_uv[0][cbx4];
for (unsigned y = starty4 >> ss_ver, uv_mask = 1 << y; y < uv_endy4;
y++, uv_mask <<= 1)
{
const int idx = !!(uv_hmask[1] & uv_mask);
uv_hmask[1] &= ~uv_mask;
uv_hmask[0] &= ~uv_mask;
uv_hmask[imin(idx, lpf_uv[y - (starty4 >> ss_ver)])] |= uv_mask;
}
}
lpf_y += halign;
lpf_uv += halign >> ss_ver;
@ -206,12 +208,14 @@ void bytefn(dav1d_loopfilter_sbrow)(const Dav1dFrameContext *const f,
y_vmask[imin(idx, a->tx_lpf_y[i])] |= mask;
}
uint32_t *const uv_vmask = lflvl[x].filter_uv[1][starty4 >> ss_ver];
for (unsigned mask = 1, i = 0; i < (32U >> ss_hor); mask <<= 1, i++) {
const int idx = !!(uv_vmask[1] & mask);
uv_vmask[1] &= ~mask;
uv_vmask[0] &= ~mask;
uv_vmask[imin(idx, a->tx_lpf_uv[i])] |= mask;
if (f->cur.p.p.layout != DAV1D_PIXEL_LAYOUT_I400) {
uint32_t *const uv_vmask = lflvl[x].filter_uv[1][starty4 >> ss_ver];
for (unsigned mask = 1, i = 0; i < (32U >> ss_hor); mask <<= 1, i++) {
const int idx = !!(uv_vmask[1] & mask);
uv_vmask[1] &= ~mask;
uv_vmask[0] &= ~mask;
uv_vmask[imin(idx, a->tx_lpf_uv[i])] |= mask;
}
}
}
}