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c935b54bd6
The randomize_buffer() implementation assures that "most of the time", we'll do a good mix of wide16/wide8/hev/regular/no filters for complete code coverage. However, this is not mathematically assured because that would make the code either much more complex, or much less random. Some fixes and improvements by Rodger Combs <rodger.combs@gmail.com> Signed-off-by: Anton Khirnov <anton@khirnov.net>
287 lines
11 KiB
C
287 lines
11 KiB
C
/*
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* Copyright (c) 2015 Ronald S. Bultje <rsbultje@gmail.com>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with Libav; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <string.h>
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#include "libavutil/common.h"
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#include "libavutil/internal.h"
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#include "libavutil/intreadwrite.h"
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#include "libavcodec/vp9.h"
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#include "checkasm.h"
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static const uint32_t pixel_mask[3] = { 0xffffffff, 0x03ff03ff, 0x0fff0fff };
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#define BIT_DEPTH 8
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#define SIZEOF_PIXEL ((BIT_DEPTH + 7) / 8)
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#define setpx(a,b,c) \
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do { \
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if (SIZEOF_PIXEL == 1) { \
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buf0[(a) + (b) * jstride] = av_clip_uint8(c); \
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} else { \
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((uint16_t *)buf0)[(a) + (b) * jstride] = av_clip_uintp2(c, BIT_DEPTH); \
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} \
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} while (0)
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#define setdx(a,b,c,d) setpx(a,b,c-(d)+(rnd()%((d)*2+1)))
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#define setsx(a,b,c,d) setdx(a,b,c,(d) << (BIT_DEPTH - 8))
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static void randomize_loopfilter_buffers(int bidx, int lineoff, int str,
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int bit_depth, int dir,
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const int *E, const int *F,
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const int *H, const int *I,
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uint8_t *buf0, uint8_t *buf1)
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{
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uint32_t mask = (1 << BIT_DEPTH) - 1;
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int off = dir ? lineoff : lineoff * 16;
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int istride = dir ? 1 : 16;
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int jstride = dir ? str : 1;
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int i, j;
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for (i = 0; i < 2; i++) /* flat16 */ {
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int idx = off + i * istride, p0, q0;
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setpx(idx, 0, q0 = rnd() & mask);
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setsx(idx, -1, p0 = q0, E[bidx] >> 2);
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for (j = 1; j < 8; j++) {
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setsx(idx, -1 - j, p0, F[bidx]);
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setsx(idx, j, q0, F[bidx]);
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}
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}
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for (i = 2; i < 4; i++) /* flat8 */ {
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int idx = off + i * istride, p0, q0;
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setpx(idx, 0, q0 = rnd() & mask);
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setsx(idx, -1, p0 = q0, E[bidx] >> 2);
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for (j = 1; j < 4; j++) {
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setsx(idx, -1 - j, p0, F[bidx]);
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setsx(idx, j, q0, F[bidx]);
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}
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for (j = 4; j < 8; j++) {
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setpx(idx, -1 - j, rnd() & mask);
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setpx(idx, j, rnd() & mask);
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}
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}
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for (i = 4; i < 6; i++) /* regular */ {
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int idx = off + i * istride, p2, p1, p0, q0, q1, q2;
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setpx(idx, 0, q0 = rnd() & mask);
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setsx(idx, 1, q1 = q0, I[bidx]);
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setsx(idx, 2, q2 = q1, I[bidx]);
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setsx(idx, 3, q2, I[bidx]);
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setsx(idx, -1, p0 = q0, E[bidx] >> 2);
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setsx(idx, -2, p1 = p0, I[bidx]);
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setsx(idx, -3, p2 = p1, I[bidx]);
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setsx(idx, -4, p2, I[bidx]);
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for (j = 4; j < 8; j++) {
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setpx(idx, -1 - j, rnd() & mask);
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setpx(idx, j, rnd() & mask);
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}
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}
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for (i = 6; i < 8; i++) /* off */ {
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int idx = off + i * istride;
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for (j = 0; j < 8; j++) {
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setpx(idx, -1 - j, rnd() & mask);
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setpx(idx, j, rnd() & mask);
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}
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}
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}
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#define randomize_buffers(bidx, lineoff, str) \
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randomize_loopfilter_buffers(bidx, lineoff, str, BIT_DEPTH, dir, \
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E, F, H, I, buf0, buf1)
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static void check_loopfilter(void)
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{
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LOCAL_ALIGNED_32(uint8_t, base0, [32 + 16 * 16 * 2]);
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LOCAL_ALIGNED_32(uint8_t, base1, [32 + 16 * 16 * 2]);
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VP9DSPContext dsp;
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int dir, wd, wd2;
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static const char *const dir_name[2] = { "h", "v" };
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static const int E[2] = { 20, 28 }, I[2] = { 10, 16 };
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static const int H[2] = { 7, 11 }, F[2] = { 1, 1 };
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declare_func(void, uint8_t *dst, ptrdiff_t stride, int E, int I, int H);
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ff_vp9dsp_init(&dsp);
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for (dir = 0; dir < 2; dir++) {
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uint8_t *buf0, *buf1;
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int midoff = (dir ? 8 * 8 : 8) * SIZEOF_PIXEL;
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int midoff_aligned = (dir ? 8 * 8 : 16) * SIZEOF_PIXEL;
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buf0 = base0 + midoff_aligned;
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buf1 = base1 + midoff_aligned;
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for (wd = 0; wd < 3; wd++) {
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// 4/8/16wd_8px
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if (check_func(dsp.loop_filter_8[wd][dir],
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"vp9_loop_filter_%s_%d_8",
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dir_name[dir], 4 << wd)) {
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randomize_buffers(0, 0, 8);
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memcpy(buf1 - midoff, buf0 - midoff,
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16 * 8 * SIZEOF_PIXEL);
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call_ref(buf0, 16 * SIZEOF_PIXEL >> dir, E[0], I[0], H[0]);
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call_new(buf1, 16 * SIZEOF_PIXEL >> dir, E[0], I[0], H[0]);
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if (memcmp(buf0 - midoff, buf1 - midoff, 16 * 8 * SIZEOF_PIXEL))
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fail();
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bench_new(buf1, 16 * SIZEOF_PIXEL >> dir, E[0], I[0], H[0]);
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}
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}
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midoff = (dir ? 16 * 8 : 8) * SIZEOF_PIXEL;
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midoff_aligned = (dir ? 16 * 8 : 16) * SIZEOF_PIXEL;
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buf0 = base0 + midoff_aligned;
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buf1 = base1 + midoff_aligned;
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// 16wd_16px loopfilter
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if (check_func(dsp.loop_filter_16[dir],
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"vp9_loop_filter_%s_16_16",
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dir_name[dir])) {
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randomize_buffers(0, 0, 16);
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randomize_buffers(0, 8, 16);
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memcpy(buf1 - midoff, buf0 - midoff, 16 * 16 * SIZEOF_PIXEL);
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call_ref(buf0, 16 * SIZEOF_PIXEL, E[0], I[0], H[0]);
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call_new(buf1, 16 * SIZEOF_PIXEL, E[0], I[0], H[0]);
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if (memcmp(buf0 - midoff, buf1 - midoff, 16 * 16 * SIZEOF_PIXEL))
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fail();
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bench_new(buf1, 16 * SIZEOF_PIXEL, E[0], I[0], H[0]);
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}
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for (wd = 0; wd < 2; wd++) {
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for (wd2 = 0; wd2 < 2; wd2++) {
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// mix2 loopfilter
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if (check_func(dsp.loop_filter_mix2[wd][wd2][dir],
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"vp9_loop_filter_mix2_%s_%d%d_16",
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dir_name[dir], 4 << wd, 4 << wd2)) {
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randomize_buffers(0, 0, 16);
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randomize_buffers(1, 8, 16);
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memcpy(buf1 - midoff, buf0 - midoff, 16 * 16 * SIZEOF_PIXEL);
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#define M(a) ((a[1] << 8) | a[0])
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call_ref(buf0, 16 * SIZEOF_PIXEL, M(E), M(I), M(H));
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call_new(buf1, 16 * SIZEOF_PIXEL, M(E), M(I), M(H));
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if (memcmp(buf0 - midoff, buf1 - midoff, 16 * 16 * SIZEOF_PIXEL))
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fail();
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bench_new(buf1, 16 * SIZEOF_PIXEL, M(E), M(I), M(H));
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#undef M
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}
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}
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}
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}
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report("loopfilter");
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}
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#undef setsx
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#undef setpx
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#undef setdx
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#undef randomize_buffers
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#define DST_BUF_SIZE (size * size * SIZEOF_PIXEL)
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#define SRC_BUF_STRIDE 72
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#define SRC_BUF_SIZE ((size + 7) * SRC_BUF_STRIDE * SIZEOF_PIXEL)
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#define src (buf + 3 * SIZEOF_PIXEL * (SRC_BUF_STRIDE + 1))
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#define randomize_buffers() \
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do { \
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uint32_t mask = pixel_mask[(BIT_DEPTH - 8) >> 1]; \
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int k; \
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for (k = 0; k < SRC_BUF_SIZE; k += 4) { \
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uint32_t r = rnd() & mask; \
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AV_WN32A(buf + k, r); \
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} \
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if (op == 1) { \
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for (k = 0; k < DST_BUF_SIZE; k += 4) { \
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uint32_t r = rnd() & mask; \
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AV_WN32A(dst0 + k, r); \
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AV_WN32A(dst1 + k, r); \
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} \
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} \
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} while (0)
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static void check_mc(void)
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{
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static const char *const filter_names[4] = {
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"8tap_smooth", "8tap_regular", "8tap_sharp", "bilin"
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};
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static const char *const subpel_names[2][2] = { { "", "h" }, { "v", "hv" } };
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static const char *const op_names[2] = { "put", "avg" };
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LOCAL_ALIGNED_32(uint8_t, buf, [72 * 72 * 2]);
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LOCAL_ALIGNED_32(uint8_t, dst0, [64 * 64 * 2]);
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LOCAL_ALIGNED_32(uint8_t, dst1, [64 * 64 * 2]);
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char str[256];
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VP9DSPContext dsp;
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int op, hsize, filter, dx, dy;
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declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT,
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void, uint8_t *dst, const uint8_t *ref,
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ptrdiff_t dst_stride, ptrdiff_t ref_stride,
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int h, int mx, int my);
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for (op = 0; op < 2; op++) {
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ff_vp9dsp_init(&dsp);
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for (hsize = 0; hsize < 5; hsize++) {
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int size = 64 >> hsize;
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for (filter = 0; filter < 4; filter++) {
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for (dx = 0; dx < 2; dx++) {
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for (dy = 0; dy < 2; dy++) {
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if (dx || dy) {
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snprintf(str, sizeof(str), "%s_%s_%d%s", op_names[op],
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filter_names[filter], size,
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subpel_names[dy][dx]);
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} else {
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snprintf(str, sizeof(str), "%s%d", op_names[op], size);
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}
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if (check_func(dsp.mc[hsize][filter][op][dx][dy],
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"vp9_%s", str)) {
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int mx = dx ? 1 + (rnd() % 14) : 0;
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int my = dy ? 1 + (rnd() % 14) : 0;
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randomize_buffers();
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call_ref(dst0, src,
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size * SIZEOF_PIXEL,
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SRC_BUF_STRIDE * SIZEOF_PIXEL,
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size, mx, my);
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call_new(dst1, src,
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size * SIZEOF_PIXEL,
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SRC_BUF_STRIDE * SIZEOF_PIXEL,
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size, mx, my);
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if (memcmp(dst0, dst1, DST_BUF_SIZE))
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fail();
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// SIMD implementations for each filter of subpel
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// functions are identical
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if (filter >= 1 && filter <= 2) continue;
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bench_new(dst1, src, size * SIZEOF_PIXEL,
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SRC_BUF_STRIDE * SIZEOF_PIXEL,
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size, mx, my);
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}
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}
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}
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}
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}
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}
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report("mc");
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}
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void checkasm_check_vp9dsp(void)
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{
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check_loopfilter();
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check_mc();
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}
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