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Simplify code to fix-up the tile boundary loopfilter masks

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This commit is contained in:
Ronald S. Bultje 2018-10-24 13:02:30 -04:00
parent 6fa9df9c6f
commit 9cdb54c51b
1 changed files with 13 additions and 15 deletions
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28
src/lf_apply.c
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@ -168,21 +168,24 @@ void bytefn(dav1d_loopfilter_sbrow)(const Dav1dFrameContext *const f,
if ((x << sbl2) >= f->bw) break;
const int bx4 = x & is_sb64 ? 16 : 0, cbx4 = bx4 >> ss_hor;
x >>= is_sb64;
uint32_t *const y_hmask = lflvl[x].filter_y[0][bx4];
for (unsigned y = starty4, mask = 1 << y; y < endy4; y++, mask <<= 1) {
const int idx = 2 * !!(lflvl[x].filter_y[0][bx4][2] & mask) +
!!(lflvl[x].filter_y[0][bx4][1] & mask);
lflvl[x].filter_y[0][bx4][2] &= ~mask;
lflvl[x].filter_y[0][bx4][1] &= ~mask;
lflvl[x].filter_y[0][bx4][0] &= ~mask;
lflvl[x].filter_y[0][bx4][imin(idx, lpf_y[y - starty4])] |= mask;
const int idx = 2 * !!(y_hmask[2] & mask) + !!(y_hmask[1] & mask);
y_hmask[2] &= ~mask;
y_hmask[1] &= ~mask;
y_hmask[0] &= ~mask;
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 = !!(lflvl[x].filter_uv[0][cbx4][1] & uv_mask);
lflvl[x].filter_uv[0][cbx4][1] &= ~uv_mask;
lflvl[x].filter_uv[0][cbx4][0] &= ~uv_mask;
lflvl[x].filter_uv[0][cbx4][imin(idx, lpf_uv[y - (starty4 >> ss_ver)])] |= uv_mask;
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;
@ -195,10 +198,7 @@ void bytefn(dav1d_loopfilter_sbrow)(const Dav1dFrameContext *const f,
x < f->sb128w; x++, a++)
{
uint32_t *const y_vmask = lflvl[x].filter_y[1][starty4];
const unsigned y_vm = y_vmask[0] | y_vmask[1] | y_vmask[2];
for (unsigned mask = 1, i = 0; i < 32; mask <<= 1, i++) {
if (!(y_vm & mask)) continue;
const int idx = 2 * !!(y_vmask[2] & mask) + !!(y_vmask[1] & mask);
y_vmask[2] &= ~mask;
y_vmask[1] &= ~mask;
@ -207,9 +207,7 @@ void bytefn(dav1d_loopfilter_sbrow)(const Dav1dFrameContext *const f,
}
uint32_t *const uv_vmask = lflvl[x].filter_uv[1][starty4 >> ss_ver];
const unsigned uv_vm = uv_vmask[0] | uv_vmask[1];
for (unsigned mask = 1, i = 0; i < (32U >> ss_hor); mask <<= 1, i++) {
if (!(uv_vm & mask)) continue;
const int idx = !!(uv_vmask[1] & mask);
uv_vmask[1] &= ~mask;
uv_vmask[0] &= ~mask;