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cdef: move out of loop constant-calculated expressions

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Herman Semenoff
2026-06-15 17:44:51 +03:00
committed by Ronald S. Bultje
parent 6b30911e2d
commit c98979434b
1 changed files with 7 additions and 6 deletions
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src/cdef_tmpl.c
+7 -6
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@@ -113,6 +113,7 @@ cdef_filter_block_c(pixel *dst, const ptrdiff_t dst_stride,
assert((w == 4 || w == 8) && (h == 4 || h == 8));
int16_t tmp_buf[144]; // 12*12 is the maximum value of tmp_stride * (h + 4)
int16_t *tmp = tmp_buf + 2 * tmp_stride + 2;
const int8_t (*const cdef_dirs)[2] = &dav1d_cdef_directions[dir];
padding(tmp, tmp_stride, dst, dst_stride, left, top, bottom, w, h, edges);
@@ -129,7 +130,7 @@ cdef_filter_block_c(pixel *dst, const ptrdiff_t dst_stride,
int max = px, min = px;
int pri_tap_k = pri_tap;
for (int k = 0; k < 2; k++) {
const int off1 = dav1d_cdef_directions[dir + 2][k]; // dir
const int off1 = cdef_dirs[2][k];
const int p0 = tmp[x + off1];
const int p1 = tmp[x - off1];
sum += pri_tap_k * constrain(p0 - px, pri_strength, pri_shift);
@@ -140,8 +141,8 @@ cdef_filter_block_c(pixel *dst, const ptrdiff_t dst_stride,
max = imax(p0, max);
min = umin(p1, min);
max = imax(p1, max);
const int off2 = dav1d_cdef_directions[dir + 4][k]; // dir + 2
const int off3 = dav1d_cdef_directions[dir + 0][k]; // dir - 2
const int off2 = cdef_dirs[4][k];
const int off3 = cdef_dirs[0][k];
const int s0 = tmp[x + off2];
const int s1 = tmp[x - off2];
const int s2 = tmp[x + off3];
@@ -173,7 +174,7 @@ cdef_filter_block_c(pixel *dst, const ptrdiff_t dst_stride,
int sum = 0;
int pri_tap_k = pri_tap;
for (int k = 0; k < 2; k++) {
const int off = dav1d_cdef_directions[dir + 2][k]; // dir
const int off = cdef_dirs[2][k];
const int p0 = tmp[x + off];
const int p1 = tmp[x - off];
sum += pri_tap_k * constrain(p0 - px, pri_strength, pri_shift);
@@ -194,8 +195,8 @@ cdef_filter_block_c(pixel *dst, const ptrdiff_t dst_stride,
const int px = dst[x];
int sum = 0;
for (int k = 0; k < 2; k++) {
const int off1 = dav1d_cdef_directions[dir + 4][k]; // dir + 2
const int off2 = dav1d_cdef_directions[dir + 0][k]; // dir - 2
const int off1 = cdef_dirs[4][k];
const int off2 = cdef_dirs[0][k];
const int s0 = tmp[x + off1];
const int s1 = tmp[x - off1];
const int s2 = tmp[x + off2];