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dav1d/tests/checkasm/mc.c
T
Niklas Haas 3a2a874994 tests/checkasm: switch to external checkasm 
There are a number of benefits tied to the upstream / third-party checkasm
version, including:

- Improved long-term maintainability, code reuse with other projects, etc.

- Vastly improved overall performance / runtime for benchmarking, due
  primarily to the ability to scale the runtime of each test to that test's
  complexity.

- Much more robust statistical analysis of benchmarking results; including
  robust outlier rejection, an estimation of the histogram, and the ability
  to report the variance / stddev in addition to the (trimmed) mean.

- Interactive HTML and JSON output formats in addition to CSV/TSV.

- More readable and user-friendly output across the board, especially for
  failures and data dumps (e.g. also showing errors inside padding bytes).

- Better cross-platform support, including dynamic fallback of timer
  implementations on ARM platforms, a better RISC-V harness, and more.

There are multiple approaches to how we can solve the problem of integrating
this third party checkasm into dav1d, but I think the hybrid approach of
loading it as an external dependency, falling back to a meson wrap file,
provides the best overall compromise. This avoids the messiness of git e.g.
git submodules, while still allowing us to pin individual tags.
2026-01-01 17:33:55 +01:00

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/*
* 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/internal.h"
#include "src/levels.h"
#include "src/mc.h"
static const char *const filter_names[] = {
"8tap_regular", "8tap_regular_smooth", "8tap_regular_sharp",
"8tap_sharp_regular", "8tap_sharp_smooth", "8tap_sharp",
"8tap_smooth_regular", "8tap_smooth", "8tap_smooth_sharp",
"bilinear"
};
static const char *const mxy_names[] = { "0", "h", "v", "hv" };
static const char *const scaled_paths[] = { "", "_dy1", "_dy2" };
static int mc_h_next(const int h) {
switch (h) {
case 4:
case 8:
case 16:
return (h * 3) >> 1;
case 6:
case 12:
case 24:
return (h & (h - 1)) * 2;
default:
return h * 2;
}
}
static void check_mc(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(pixel, src_buf, 135 * 135,);
PIXEL_RECT(c_dst, 128, 128);
PIXEL_RECT(a_dst, 128, 128);
const pixel *src = src_buf + 135 * 3 + 3;
const ptrdiff_t src_stride = 135 * sizeof(pixel);
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const pixel *src,
ptrdiff_t src_stride, int w, int h, int mx, int my
HIGHBD_DECL_SUFFIX);
for (int filter = 0; filter < N_2D_FILTERS; filter++)
for (int w = 2; w <= 128; w <<= 1) {
for (int mxy = 0; mxy < 4; mxy++)
if (check_func(c->mc[filter], "mc_%s_w%d_%s_%dbpc",
filter_names[filter], w, mxy_names[mxy], BITDEPTH))
{
const int h_min = w <= 32 ? 2 : w / 4;
const int h_max = imax(imin(w * 4, 128), 32);
for (int h = h_min; h <= h_max; h = mc_h_next(h)) {
const int mx = (mxy & 1) ? rnd() % 15 + 1 : 0;
const int my = (mxy & 2) ? rnd() % 15 + 1 : 0;
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
for (int i = 0; i < 135 * 135; i++)
src_buf[i] = rnd() & bitdepth_max;
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
call_ref(c_dst, c_dst_stride, src, src_stride, w, h,
mx, my HIGHBD_TAIL_SUFFIX);
call_new(a_dst, a_dst_stride, src, src_stride, w, h,
mx, my HIGHBD_TAIL_SUFFIX);
checkasm_check_pixel_padded(c_dst, c_dst_stride,
a_dst, a_dst_stride,
w, h, "dst");
if (filter == FILTER_2D_8TAP_REGULAR ||
filter == FILTER_2D_8TAP_SHARP ||
filter == FILTER_2D_BILINEAR)
{
bench_new(a_dst, a_dst_stride, src, src_stride, w, h,
mx, my HIGHBD_TAIL_SUFFIX);
}
}
}
}
report("mc");
}
/* Generate worst case input in the topleft corner, randomize the rest */
static void generate_mct_input(pixel *const buf, const int bitdepth_max) {
static const int8_t pattern[8] = { -1, 0, -1, 0, 0, -1, 0, -1 };
const int sign = -(rnd() & 1);
for (int y = 0; y < 135; y++)
for (int x = 0; x < 135; x++)
buf[135*y+x] = ((x | y) < 8 ? (pattern[x] ^ pattern[y] ^ sign)
: rnd()) & bitdepth_max;
}
static void check_mct(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(pixel, src_buf, 135 * 135,);
ALIGN_STK_64(int16_t, c_tmp, 128 * 128,);
ALIGN_STK_64(int16_t, a_tmp, 128 * 128,);
const pixel *src = src_buf + 135 * 3 + 3;
const ptrdiff_t src_stride = 135 * sizeof(pixel);
declare_func(void, int16_t *tmp, const pixel *src, ptrdiff_t src_stride,
int w, int h, int mx, int my HIGHBD_DECL_SUFFIX);
for (int filter = 0; filter < N_2D_FILTERS; filter++)
for (int w = 4; w <= 128; w <<= 1)
for (int mxy = 0; mxy < 4; mxy++)
if (check_func(c->mct[filter], "mct_%s_w%d_%s_%dbpc",
filter_names[filter], w, mxy_names[mxy], BITDEPTH))
for (int h = imax(w / 4, 4); h <= imin(w * 4, 128); h <<= 1)
{
const int mx = (mxy & 1) ? rnd() % 15 + 1 : 0;
const int my = (mxy & 2) ? rnd() % 15 + 1 : 0;
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
generate_mct_input(src_buf, bitdepth_max);
call_ref(c_tmp, src, src_stride, w, h,
mx, my HIGHBD_TAIL_SUFFIX);
call_new(a_tmp, src, src_stride, w, h,
mx, my HIGHBD_TAIL_SUFFIX);
checkasm_check(int16_t, c_tmp, w * sizeof(*c_tmp),
a_tmp, w * sizeof(*a_tmp),
w, h, "tmp");
if (filter == FILTER_2D_8TAP_REGULAR ||
filter == FILTER_2D_8TAP_SHARP ||
filter == FILTER_2D_BILINEAR)
{
bench_new(a_tmp, src, src_stride, w, h,
mx, my HIGHBD_TAIL_SUFFIX);
}
}
report("mct");
}
static void check_mc_scaled(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(pixel, src_buf, 263 * 263,);
PIXEL_RECT(c_dst, 128, 128);
PIXEL_RECT(a_dst, 128, 128);
const pixel *src = src_buf + 263 * 3 + 3;
const ptrdiff_t src_stride = 263 * sizeof(pixel);
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const pixel *src,
ptrdiff_t src_stride, int w, int h,
int mx, int my, int dx, int dy HIGHBD_DECL_SUFFIX);
for (int filter = 0; filter < N_2D_FILTERS; filter++)
for (int w = 2; w <= 128; w <<= 1) {
for (int p = 0; p < 3; ++p) {
if (check_func(c->mc_scaled[filter], "mc_scaled_%s_w%d%s_%dbpc",
filter_names[filter], w, scaled_paths[p], BITDEPTH))
{
const int h_min = w <= 32 ? 2 : w / 4;
const int h_max = imax(imin(w * 4, 128), 32);
for (int h = h_min; h <= h_max; h = mc_h_next(h)) {
const int mx = rnd() % 1024;
const int my = rnd() % 1024;
const int dx = rnd() % 2048 + 1;
const int dy = !p
? rnd() % 2048 + 1
: p << 10; // ystep=1.0 and ystep=2.0 paths
for (int k = 0; k < 263 * 263; k++)
src_buf[k] = rnd() & bitdepth_max;
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
call_ref(c_dst, c_dst_stride, src, src_stride,
w, h, mx, my, dx, dy HIGHBD_TAIL_SUFFIX);
call_new(a_dst, a_dst_stride, src, src_stride,
w, h, mx, my, dx, dy HIGHBD_TAIL_SUFFIX);
checkasm_check_pixel_padded(c_dst, c_dst_stride,
a_dst, a_dst_stride,
w, h, "dst");
if (filter == FILTER_2D_8TAP_REGULAR ||
filter == FILTER_2D_BILINEAR)
bench_new(a_dst, a_dst_stride, src, src_stride,
w, h, mx, my, dx, dy HIGHBD_TAIL_SUFFIX);
}
}
}
}
report("mc_scaled");
}
static void check_mct_scaled(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(pixel, src_buf, 263 * 263,);
ALIGN_STK_64(int16_t, c_tmp, 128 * 128,);
ALIGN_STK_64(int16_t, a_tmp, 128 * 128,);
const pixel *src = src_buf + 263 * 3 + 3;
const ptrdiff_t src_stride = 263 * sizeof(pixel);
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
declare_func(void, int16_t *tmp, const pixel *src, ptrdiff_t src_stride,
int w, int h, int mx, int my, int dx, int dy HIGHBD_DECL_SUFFIX);
for (int filter = 0; filter < N_2D_FILTERS; filter++)
for (int w = 4; w <= 128; w <<= 1)
for (int p = 0; p < 3; ++p) {
if (check_func(c->mct_scaled[filter], "mct_scaled_%s_w%d%s_%dbpc",
filter_names[filter], w, scaled_paths[p], BITDEPTH))
{
const int h_min = imax(w / 4, 4);
const int h_max = imin(w * 4, 128);
for (int h = h_min; h <= h_max; h = mc_h_next(h)) {
const int mx = rnd() % 1024;
const int my = rnd() % 1024;
const int dx = rnd() % 2048 + 1;
const int dy = !p
? rnd() % 2048 + 1
: p << 10; // ystep=1.0 and ystep=2.0 paths
for (int k = 0; k < 263 * 263; k++)
src_buf[k] = rnd() & bitdepth_max;
call_ref(c_tmp, src, src_stride,
w, h, mx, my, dx, dy HIGHBD_TAIL_SUFFIX);
call_new(a_tmp, src, src_stride,
w, h, mx, my, dx, dy HIGHBD_TAIL_SUFFIX);
checkasm_check(int16_t, c_tmp, w * sizeof(*c_tmp),
a_tmp, w * sizeof(*a_tmp),
w, h, "tmp");
if (filter == FILTER_2D_8TAP_REGULAR ||
filter == FILTER_2D_BILINEAR)
bench_new(a_tmp, src, src_stride,
w, h, mx, my, dx, dy HIGHBD_TAIL_SUFFIX);
}
}
}
report("mct_scaled");
}
static void init_tmp(Dav1dMCDSPContext *const c, pixel *const buf,
int16_t (*const tmp)[128 * 128], const int bitdepth_max)
{
for (int i = 0; i < 2; i++) {
generate_mct_input(buf, bitdepth_max);
c->mct[FILTER_2D_8TAP_SHARP](tmp[i], buf + 135 * 3 + 3,
135 * sizeof(pixel), 128, 128,
8, 8 HIGHBD_TAIL_SUFFIX);
}
}
static void check_avg(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(int16_t, tmp, 2, [128 * 128]);
PIXEL_RECT(c_dst, 135, 135);
PIXEL_RECT(a_dst, 128, 128);
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const int16_t *tmp1,
const int16_t *tmp2, int w, int h HIGHBD_DECL_SUFFIX);
for (int w = 4; w <= 128; w <<= 1)
if (check_func(c->avg, "avg_w%d_%dbpc", w, BITDEPTH)) {
for (int h = imax(w / 4, 4); h <= imin(w * 4, 128); h <<= 1)
{
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
init_tmp(c, c_dst, tmp, bitdepth_max);
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
call_ref(c_dst, c_dst_stride, tmp[0], tmp[1], w, h HIGHBD_TAIL_SUFFIX);
call_new(a_dst, a_dst_stride, tmp[0], tmp[1], w, h HIGHBD_TAIL_SUFFIX);
checkasm_check_pixel_padded(c_dst, c_dst_stride, a_dst, a_dst_stride,
w, h, "dst");
bench_new(a_dst, a_dst_stride, tmp[0], tmp[1], w, h HIGHBD_TAIL_SUFFIX);
}
}
report("avg");
}
static void check_w_avg(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(int16_t, tmp, 2, [128 * 128]);
PIXEL_RECT(c_dst, 135, 135);
PIXEL_RECT(a_dst, 128, 128);
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const int16_t *tmp1,
const int16_t *tmp2, int w, int h, int weight HIGHBD_DECL_SUFFIX);
for (int w = 4; w <= 128; w <<= 1)
if (check_func(c->w_avg, "w_avg_w%d_%dbpc", w, BITDEPTH)) {
for (int h = imax(w / 4, 4); h <= imin(w * 4, 128); h <<= 1)
{
int weight = rnd() % 15 + 1;
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
init_tmp(c, c_dst, tmp, bitdepth_max);
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
call_ref(c_dst, c_dst_stride, tmp[0], tmp[1], w, h, weight HIGHBD_TAIL_SUFFIX);
call_new(a_dst, a_dst_stride, tmp[0], tmp[1], w, h, weight HIGHBD_TAIL_SUFFIX);
checkasm_check_pixel_padded(c_dst, c_dst_stride, a_dst, a_dst_stride,
w, h, "dst");
bench_new(a_dst, a_dst_stride, tmp[0], tmp[1], w, h, weight HIGHBD_TAIL_SUFFIX);
}
}
report("w_avg");
}
static void check_mask(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(int16_t, tmp, 2, [128 * 128]);
PIXEL_RECT(c_dst, 135, 135);
PIXEL_RECT(a_dst, 128, 128);
ALIGN_STK_64(uint8_t, mask, 128 * 128,);
for (int i = 0; i < 128 * 128; i++)
mask[i] = rnd() % 65;
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const int16_t *tmp1,
const int16_t *tmp2, int w, int h, const uint8_t *mask
HIGHBD_DECL_SUFFIX);
for (int w = 4; w <= 128; w <<= 1)
if (check_func(c->mask, "mask_w%d_%dbpc", w, BITDEPTH)) {
for (int h = imax(w / 4, 4); h <= imin(w * 4, 128); h <<= 1)
{
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
init_tmp(c, c_dst, tmp, bitdepth_max);
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
call_ref(c_dst, c_dst_stride, tmp[0], tmp[1], w, h, mask HIGHBD_TAIL_SUFFIX);
call_new(a_dst, a_dst_stride, tmp[0], tmp[1], w, h, mask HIGHBD_TAIL_SUFFIX);
checkasm_check_pixel_padded(c_dst, c_dst_stride, a_dst, a_dst_stride,
w, h, "dst");
bench_new(a_dst, a_dst_stride, tmp[0], tmp[1], w, h, mask HIGHBD_TAIL_SUFFIX);
}
}
report("mask");
}
static void check_w_mask(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(int16_t, tmp, 2, [128 * 128]);
PIXEL_RECT(c_dst, 135, 135);
PIXEL_RECT(a_dst, 128, 128);
ALIGN_STK_64(uint8_t, c_mask, 128 * 128,);
ALIGN_STK_64(uint8_t, a_mask, 128 * 128,);
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const int16_t *tmp1,
const int16_t *tmp2, int w, int h, uint8_t *mask, int sign
HIGHBD_DECL_SUFFIX);
static const uint16_t ss[] = { 444, 422, 420 };
static const uint8_t ss_hor[] = { 0, 1, 1 };
static const uint8_t ss_ver[] = { 0, 0, 1 };
for (int i = 0; i < 3; i++)
for (int w = 4; w <= 128; w <<= 1)
if (check_func(c->w_mask[i], "w_mask_%d_w%d_%dbpc", ss[i], w,
BITDEPTH))
{
for (int h = imax(w / 4, 4); h <= imin(w * 4, 128); h <<= 1)
{
int sign = rnd() & 1;
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
init_tmp(c, c_dst, tmp, bitdepth_max);
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
call_ref(c_dst, c_dst_stride, tmp[0], tmp[1], w, h,
c_mask, sign HIGHBD_TAIL_SUFFIX);
call_new(a_dst, a_dst_stride, tmp[0], tmp[1], w, h,
a_mask, sign HIGHBD_TAIL_SUFFIX);
checkasm_check_pixel_padded(c_dst, c_dst_stride,
a_dst, a_dst_stride,
w, h, "dst");
checkasm_check(uint8_t, c_mask, w >> ss_hor[i],
a_mask, w >> ss_hor[i],
w >> ss_hor[i], h >> ss_ver[i],
"mask");
bench_new(a_dst, a_dst_stride, tmp[0], tmp[1], w, h,
a_mask, sign HIGHBD_TAIL_SUFFIX);
}
}
report("w_mask");
}
static void check_blend(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(pixel, tmp, 32 * 32,);
PIXEL_RECT(c_dst, 32, 32);
PIXEL_RECT(a_dst, 32, 32);
ALIGN_STK_64(uint8_t, mask, 32 * 32,);
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const pixel *tmp,
int w, int h, const uint8_t *mask);
for (int w = 4; w <= 32; w <<= 1) {
if (check_func(c->blend, "blend_w%d_%dbpc", w, BITDEPTH))
for (int h = imax(w / 2, 4); h <= imin(w * 2, 32); h <<= 1) {
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
for (int i = 0; i < 32 * 32; i++) {
tmp[i] = rnd() & bitdepth_max;
mask[i] = rnd() % 65;
}
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
c_dst[y*PXSTRIDE(c_dst_stride) + x] =
a_dst[y*PXSTRIDE(a_dst_stride) + x] = rnd() & bitdepth_max;
call_ref(c_dst, c_dst_stride, tmp, w, h, mask);
call_new(a_dst, a_dst_stride, tmp, w, h, mask);
checkasm_check_pixel_padded(c_dst, c_dst_stride, a_dst, a_dst_stride,
w, h, "dst");
bench_new(alternate(c_dst, a_dst), a_dst_stride, tmp, w, h, mask);
}
}
report("blend");
}
static void check_blend_v(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(pixel, tmp, 32 * 128,);
PIXEL_RECT(c_dst, 32, 128);
PIXEL_RECT(a_dst, 32, 128);
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const pixel *tmp,
int w, int h);
for (int w = 2; w <= 32; w <<= 1) {
if (check_func(c->blend_v, "blend_v_w%d_%dbpc", w, BITDEPTH))
for (int h = 2; h <= (w == 2 ? 64 : 128); h <<= 1) {
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
c_dst[y*PXSTRIDE(c_dst_stride) + x] =
a_dst[y*PXSTRIDE(a_dst_stride) + x] = rnd() & bitdepth_max;
for (int i = 0; i < 32 * 128; i++)
tmp[i] = rnd() & bitdepth_max;
call_ref(c_dst, c_dst_stride, tmp, w, h);
call_new(a_dst, a_dst_stride, tmp, w, h);
checkasm_check_pixel_padded(c_dst, c_dst_stride, a_dst, a_dst_stride,
w, h, "dst");
bench_new(alternate(c_dst, a_dst), a_dst_stride, tmp, w, h);
}
}
report("blend_v");
}
static void check_blend_h(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(pixel, tmp, 128 * 32,);
PIXEL_RECT(c_dst, 128, 32);
PIXEL_RECT(a_dst, 128, 32);
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const pixel *tmp,
int w, int h);
for (int w = 2; w <= 128; w <<= 1) {
if (check_func(c->blend_h, "blend_h_w%d_%dbpc", w, BITDEPTH))
for (int h = (w == 128 ? 4 : 2); h <= 32; h <<= 1) {
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
c_dst[y*PXSTRIDE(c_dst_stride) + x] =
a_dst[y*PXSTRIDE(a_dst_stride) + x] = rnd() & bitdepth_max;
for (int i = 0; i < 128 * 32; i++)
tmp[i] = rnd() & bitdepth_max;
call_ref(c_dst, c_dst_stride, tmp, w, h);
call_new(a_dst, a_dst_stride, tmp, w, h);
checkasm_check_pixel_padded(c_dst, c_dst_stride, a_dst, a_dst_stride,
w, h, "dst");
bench_new(alternate(c_dst, a_dst), a_dst_stride, tmp, w, h);
}
}
report("blend_h");
}
static void check_warp8x8(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(pixel, src_buf, 15 * 15,);
PIXEL_RECT(c_dst, 8, 8);
PIXEL_RECT(a_dst, 8, 8);
int16_t abcd[4];
const pixel *src = src_buf + 15 * 3 + 3;
const ptrdiff_t src_stride = 15 * sizeof(pixel);
declare_func(void, pixel *dst, ptrdiff_t dst_stride, const pixel *src,
ptrdiff_t src_stride, const int16_t *abcd, int mx, int my
HIGHBD_DECL_SUFFIX);
if (check_func(c->warp8x8, "warp_8x8_%dbpc", BITDEPTH)) {
const int mx = (rnd() & 0x1fff) - 0xa00;
const int my = (rnd() & 0x1fff) - 0xa00;
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
for (int i = 0; i < 4; i++)
abcd[i] = (rnd() & 0x1fff) - 0xa00;
for (int i = 0; i < 15 * 15; i++)
src_buf[i] = rnd() & bitdepth_max;
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
call_ref(c_dst, c_dst_stride, src, src_stride, abcd, mx, my HIGHBD_TAIL_SUFFIX);
call_new(a_dst, a_dst_stride, src, src_stride, abcd, mx, my HIGHBD_TAIL_SUFFIX);
checkasm_check_pixel_padded(c_dst, c_dst_stride, a_dst, a_dst_stride,
8, 8, "dst");
bench_new(a_dst, a_dst_stride, src, src_stride, abcd, mx, my HIGHBD_TAIL_SUFFIX);
}
report("warp8x8");
}
static void check_warp8x8t(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(pixel, src_buf, 15 * 15,);
ALIGN_STK_64(int16_t, c_tmp, 8 * 8,);
ALIGN_STK_64(int16_t, a_tmp, 8 * 8,);
int16_t abcd[4];
const pixel *src = src_buf + 15 * 3 + 3;
const ptrdiff_t src_stride = 15 * sizeof(pixel);
declare_func(void, int16_t *tmp, ptrdiff_t tmp_stride, const pixel *src,
ptrdiff_t src_stride, const int16_t *abcd, int mx, int my
HIGHBD_DECL_SUFFIX);
if (check_func(c->warp8x8t, "warp_8x8t_%dbpc", BITDEPTH)) {
const int mx = (rnd() & 0x1fff) - 0xa00;
const int my = (rnd() & 0x1fff) - 0xa00;
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
for (int i = 0; i < 4; i++)
abcd[i] = (rnd() & 0x1fff) - 0xa00;
for (int i = 0; i < 15 * 15; i++)
src_buf[i] = rnd() & bitdepth_max;
call_ref(c_tmp, 8, src, src_stride, abcd, mx, my HIGHBD_TAIL_SUFFIX);
call_new(a_tmp, 8, src, src_stride, abcd, mx, my HIGHBD_TAIL_SUFFIX);
checkasm_check(int16_t, c_tmp, 8 * sizeof(*c_tmp),
a_tmp, 8 * sizeof(*a_tmp),
8, 8, "tmp");
bench_new(a_tmp, 8, src, src_stride, abcd, mx, my HIGHBD_TAIL_SUFFIX);
}
report("warp8x8t");
}
enum EdgeFlags {
HAVE_TOP = 1,
HAVE_BOTTOM = 2,
HAVE_LEFT = 4,
HAVE_RIGHT = 8,
};
static void random_offset_for_edge(int *const x, int *const y,
const int bw, const int bh,
int *const iw, int *const ih,
const enum EdgeFlags edge)
{
#define set_off(edge1, edge2, pos, dim) \
*i##dim = edge & (HAVE_##edge1 | HAVE_##edge2) ? 160 : 1 + (rnd() % (b##dim - 2)); \
switch (edge & (HAVE_##edge1 | HAVE_##edge2)) { \
case HAVE_##edge1 | HAVE_##edge2: \
assert(b##dim <= *i##dim); \
*pos = rnd() % (*i##dim - b##dim + 1); \
break; \
case HAVE_##edge1: \
*pos = (*i##dim - b##dim) + 1 + (rnd() % (b##dim - 1)); \
break; \
case HAVE_##edge2: \
*pos = -(1 + (rnd() % (b##dim - 1))); \
break; \
case 0: \
assert(b##dim - 1 > *i##dim); \
*pos = -(1 + (rnd() % (b##dim - *i##dim - 1))); \
break; \
}
set_off(LEFT, RIGHT, x, w);
set_off(TOP, BOTTOM, y, h);
}
static void check_emuedge(Dav1dMCDSPContext *const c) {
ALIGN_STK_64(pixel, c_dst, 135 * 192,);
ALIGN_STK_64(pixel, a_dst, 135 * 192,);
ALIGN_STK_64(pixel, src, 160 * 160,);
for (int i = 0; i < 160 * 160; i++)
src[i] = rnd() & ((1U << BITDEPTH) - 1);
declare_func(void, intptr_t bw, intptr_t bh, intptr_t iw, intptr_t ih,
intptr_t x, intptr_t y,
pixel *dst, ptrdiff_t dst_stride,
const pixel *src, ptrdiff_t src_stride);
int x, y, iw, ih;
for (int w = 4; w <= 128; w <<= 1)
if (check_func(c->emu_edge, "emu_edge_w%d_%dbpc", w, BITDEPTH)) {
for (int h = imax(w / 4, 4); h <= imin(w * 4, 128); h <<= 1) {
// we skip 0xf, since it implies that we don't need emu_edge
for (enum EdgeFlags edge = 0; edge < 0xf; edge++) {
const int bw = w + (rnd() & 7);
const int bh = h + (rnd() & 7);
random_offset_for_edge(&x, &y, bw, bh, &iw, &ih, edge);
call_ref(bw, bh, iw, ih, x, y,
c_dst, 192 * sizeof(pixel), src, 160 * sizeof(pixel));
call_new(bw, bh, iw, ih, x, y,
a_dst, 192 * sizeof(pixel), src, 160 * sizeof(pixel));
checkasm_check_pixel(c_dst, 192 * sizeof(pixel),
a_dst, 192 * sizeof(pixel),
bw, bh, "dst");
}
}
for (enum EdgeFlags edge = 1; edge < 0xf; edge <<= 1) {
random_offset_for_edge(&x, &y, w + 7, w + 7, &iw, &ih, edge);
bench_new(w + 7, w + 7, iw, ih, x, y,
a_dst, 192 * sizeof(pixel), src, 160 * sizeof(pixel));
}
}
report("emu_edge");
}
static int get_upscale_x0(const int in_w, const int out_w, const int step) {
const int err = out_w * step - (in_w << 14);
const int x0 = (-((out_w - in_w) << 13) + (out_w >> 1)) / out_w + 128 - (err >> 1);
return x0 & 0x3fff;
}
static void check_resize(Dav1dMCDSPContext *const c) {
PIXEL_RECT(c_dst, 1024, 64);
PIXEL_RECT(a_dst, 1024, 64);
ALIGN_STK_64(pixel, src, 512 * 64,);
const int height = 64;
const int max_src_width = 512;
const ptrdiff_t src_stride = 512 * sizeof(pixel);
declare_func(void, pixel *dst, ptrdiff_t dst_stride,
const pixel *src, ptrdiff_t src_stride,
int dst_w, int src_w, int h, int dx, int mx0
HIGHBD_DECL_SUFFIX);
if (check_func(c->resize, "resize_%dbpc", BITDEPTH)) {
#if BITDEPTH == 16
const int bitdepth_max = rnd() & 1 ? 0x3ff : 0xfff;
#else
const int bitdepth_max = 0xff;
#endif
for (int i = 0; i < max_src_width * height; i++)
src[i] = rnd() & bitdepth_max;
const int w_den = 9 + (rnd() & 7);
const int src_w = 16 + (rnd() % (max_src_width - 16 + 1));
const int dst_w = w_den * src_w >> 3;
#define scale_fac(ref_sz, this_sz) \
((((ref_sz) << 14) + ((this_sz) >> 1)) / (this_sz))
const int dx = scale_fac(src_w, dst_w);
#undef scale_fac
const int mx0 = get_upscale_x0(src_w, dst_w, dx);
CLEAR_PIXEL_RECT(c_dst);
CLEAR_PIXEL_RECT(a_dst);
call_ref(c_dst, c_dst_stride, src, src_stride,
dst_w, height, src_w, dx, mx0 HIGHBD_TAIL_SUFFIX);
call_new(a_dst, a_dst_stride, src, src_stride,
dst_w, height, src_w, dx, mx0 HIGHBD_TAIL_SUFFIX);
checkasm_check_pixel_padded_align(c_dst, c_dst_stride, a_dst, a_dst_stride,
dst_w, height, "dst", 16, 1);
bench_new(a_dst, a_dst_stride, src, src_stride,
512, height, 512 * 8 / w_den, dx, mx0 HIGHBD_TAIL_SUFFIX);
}
report("resize");
}
void bitfn(checkasm_check_mc)(void) {
Dav1dMCDSPContext c;
bitfn(dav1d_mc_dsp_init)(&c);
check_mc(&c);
check_mct(&c);
check_mc_scaled(&c);
check_mct_scaled(&c);
check_avg(&c);
check_w_avg(&c);
check_mask(&c);
check_w_mask(&c);
check_blend(&c);
check_blend_v(&c);
check_blend_h(&c);
check_warp8x8(&c);
check_warp8x8t(&c);
check_emuedge(&c);
check_resize(&c);
}
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