ref: a146437d8810faac27b0033d08793a6311dc8f01
dir: /tests/checkasm/loopfilter.c/
/*
* Copyright © 2018, VideoLAN and dav1d authors
* Copyright © 2018, Two Orioles, LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "tests/checkasm/checkasm.h"
#include <string.h>
#include "src/levels.h"
#include "src/loopfilter.h"
static void init_lpf_border(pixel *const dst, const ptrdiff_t stride,
int E, int I, int H)
{
const int F = 1 << (BITDEPTH - 8);
E <<= BITDEPTH - 8;
I <<= BITDEPTH - 8;
H <<= BITDEPTH - 8;
const int filter_type = rand() % 4;
const int edge_diff = rand() % ((E + 2) * 4) - 2 * (E + 2);
switch (filter_type) {
case 0: // random, unfiltered
for (int i = -8; i < 8; i++)
dst[i * stride] = rand() & ((1 << BITDEPTH) - 1);
break;
case 1: // long flat
dst[-8 * stride] = rand() & ((1 << BITDEPTH) - 1);
dst[+7 * stride] = rand() & ((1 << BITDEPTH) - 1);
dst[+0 * stride] = rand() & ((1 << BITDEPTH) - 1);
dst[-1 * stride] = iclip_pixel(dst[+0 * stride] + edge_diff);
for (int i = 1; i < 7; i++) {
dst[-(1 + i) * stride] = iclip_pixel(dst[-1 * stride] +
rand() % (2 * (F + 1)) - (F + 1));
dst[+(0 + i) * stride] = iclip_pixel(dst[+0 * stride] +
rand() % (2 * (F + 1)) - (F + 1));
}
break;
case 2: // short flat
for (int i = 4; i < 8; i++) {
dst[-(1 + i) * stride] = rand() & ((1 << BITDEPTH) - 1);
dst[+(0 + i) * stride] = rand() & ((1 << BITDEPTH) - 1);
}
dst[+0 * stride] = rand() & ((1 << BITDEPTH) - 1);
dst[-1 * stride] = iclip_pixel(dst[+0 * stride] + edge_diff);
for (int i = 1; i < 4; i++) {
dst[-(1 + i) * stride] = iclip_pixel(dst[-1 * stride] +
rand() % (2 * (F + 1)) - (F + 1));
dst[+(0 + i) * stride] = iclip_pixel(dst[+0 * stride] +
rand() % (2 * (F + 1)) - (F + 1));
}
break;
case 3: // normal or hev
for (int i = 4; i < 8; i++) {
dst[-(1 + i) * stride] = rand() & ((1 << BITDEPTH) - 1);
dst[+(0 + i) * stride] = rand() & ((1 << BITDEPTH) - 1);
}
dst[+0 * stride] = rand() & ((1 << BITDEPTH) - 1);
dst[-1 * stride] = iclip_pixel(dst[+0 * stride] + edge_diff);
for (int i = 1; i < 4; i++) {
dst[-(1 + i) * stride] = iclip_pixel(dst[-(0 + i) * stride] +
rand() % (2 * (I + 1)) - (I + 1));
dst[+(0 + i) * stride] = iclip_pixel(dst[+(i - 1) * stride] +
rand() % (2 * (I + 1)) - (I + 1));
}
break;
}
}
static void check_lpf_sb(loopfilter_sb_fn fn, const char *const name,
const int n_strengths, const int n_blks,
const int sb_idx)
{
ALIGN_STK_32(pixel, c_dst, 128 * 16,);
ALIGN_STK_32(pixel, a_dst, 128 * 16,);
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const uint32_t *mask,
const uint8_t (*l)[4], ptrdiff_t b4_stride,
const Av1FilterLUT *lut, int w);
Av1FilterLUT lut;
const int sharp = rand() & 7;
for (int level = 0; level < 64; level++) {
int limit = level;
if (sharp > 0) {
limit >>= (sharp + 3) >> 2;
limit = imin(limit, 9 - sharp);
}
limit = imax(limit, 1);
lut.i[level] = limit;
lut.e[level] = 2 * (level + 2) + limit;
}
for (int i = 0; i < n_strengths; i++) {
if (check_func(fn, "%s_w%d_%dbpc", name,
n_strengths == 3 ? 4 << i : 4 * 2 * i, BITDEPTH))
{
uint32_t vmask[3] = { 0 };
uint8_t l[32 * 2][4];
for (int j = 0; j < n_blks; j++) {
const int idx = rand() % (i + 2);
if (idx) vmask[idx - 1] |= 1 << j;
l[j][sb_idx] = rand() & 63;
l[32 + j][sb_idx] = rand() & 63;
}
for (int i = 0; i < 128; i++) {
const int x = i >> 2;
const int L = l[x + 32][sb_idx] ? l[x + 32][sb_idx] : l[x][sb_idx];
init_lpf_border(c_dst + 128 * 8 + i, 128,
lut.e[L], lut.i[L], L >> 4);
}
memcpy(a_dst, c_dst, 128 * sizeof(pixel) * 16);
call_ref(c_dst + 128 * 8, 128 * sizeof(pixel),
vmask, (const uint8_t(*)[4]) &l[32][sb_idx], 32,
&lut, n_blks);
call_new(a_dst + 128 * 8, 128 * sizeof(pixel),
vmask, (const uint8_t(*)[4]) &l[32][sb_idx], 32,
&lut, n_blks);
if (memcmp(c_dst, a_dst, 128 * 16 * sizeof(*a_dst))) fail();
bench_new(a_dst + 128 * 8, 128 * sizeof(pixel),
vmask, (const uint8_t(*)[4]) &l[32][sb_idx], 32,
&lut, n_blks);
}
}
report(name);
}
void bitfn(checkasm_check_loopfilter)(void) {
Dav1dLoopFilterDSPContext c;
bitfn(dav1d_loop_filter_dsp_init)(&c);
check_lpf_sb(c.loop_filter_sb128y, "lpf_v_sb128y", 3, 32, 1);
check_lpf_sb(c.loop_filter_sb128uv, "lpf_v_sb128uv", 2, 16, 2);
}