e8224c7ad5
Instead of having CLPF write to an entire new frame and copy the result back into the original frame, make the filter able to work in-place by keeping a buffer of size frame_width*filter_block_size and delay the write-back by one filter_block_size row. This reduces the cycles spent in the filter to ~75%. Change-Id: I78ca74380c45492daa8935d08d766851edb5fbc1
241 lines
8.2 KiB
C++
241 lines
8.2 KiB
C++
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <cstdlib>
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#include <string>
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#include "third_party/googletest/src/include/gtest/gtest.h"
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#include "./aom_config.h"
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#include "./aom_dsp_rtcd.h"
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#include "aom_ports/aom_timer.h"
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#include "test/acm_random.h"
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#include "test/clear_system_state.h"
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#include "test/register_state_check.h"
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#include "test/util.h"
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using libaom_test::ACMRandom;
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namespace {
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typedef void (*clpf_block_t)(const uint8_t *src, uint8_t *dst, int sstride,
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int dstride, int x0, int y0, int sizex, int sizey,
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int width, int height, unsigned int strength);
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typedef std::tr1::tuple<clpf_block_t, clpf_block_t, int, int>
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clpf_block_param_t;
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class ClpfBlockTest : public ::testing::TestWithParam<clpf_block_param_t> {
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public:
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virtual ~ClpfBlockTest() {}
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virtual void SetUp() {
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clpf = GET_PARAM(0);
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ref_clpf = GET_PARAM(1);
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sizex = GET_PARAM(2);
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sizey = GET_PARAM(3);
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}
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virtual void TearDown() { libaom_test::ClearSystemState(); }
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protected:
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int sizex;
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int sizey;
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clpf_block_t clpf;
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clpf_block_t ref_clpf;
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};
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typedef ClpfBlockTest ClpfSpeedTest;
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TEST_P(ClpfBlockTest, TestSIMDNoMismatch) {
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int w = sizex;
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int h = sizey;
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const int size = 32;
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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DECLARE_ALIGNED(16, uint8_t, s[size * size]);
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DECLARE_ALIGNED(16, uint8_t, d[size * size]);
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DECLARE_ALIGNED(16, uint8_t, ref_d[size * size]);
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memset(ref_d, 0, size * size);
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memset(d, 0, size * size);
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int error = 0;
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int pos = 0;
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int strength = 0;
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int xpos = 0, ypos = 0;
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int bits;
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int level;
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// Test every combination of:
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// * Input with 1-8 bits of noise
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// * Noise level around every value from 0 to 255
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// * Blocks anywhere in the frame (along all egdes and also fully inside)
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// * All strengths
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for (level = 0; level < 256 && !error; level++) {
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for (bits = 1; bits < 9 && !error; bits++) {
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for (int i = 0; i < size * size; i++)
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s[i] = clamp((rnd.Rand8() & ((1 << bits) - 1)) + level, 0, 255);
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for (ypos = 0; ypos < size && !error; ypos += h * !error) {
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for (xpos = 0; xpos < size && !error; xpos += w * !error) {
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for (strength = 0; strength < 3 && !error; strength += !error) {
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ref_clpf(s, ref_d, size, size, xpos, ypos, w, h, size, size,
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1 << strength);
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ASM_REGISTER_STATE_CHECK(clpf(s, d, size, size, xpos, ypos, w, h,
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size, size, 1 << strength));
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for (pos = 0; pos < size * size && !error; pos++) {
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error = ref_d[pos] != d[pos];
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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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EXPECT_EQ(0, error)
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<< "Error: ClpfBlockTest, SIMD and C mismatch." << std::endl
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<< "First error at " << pos % size << "," << pos / size << " ("
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<< (int16_t)ref_d[pos] << " != " << (int16_t)d[pos] << ") " << std::endl
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<< "strength: " << (1 << strength) << std::endl
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<< "xpos: " << xpos << std::endl
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<< "ypos: " << ypos << std::endl
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<< "A=" << (pos > size ? (int16_t)s[pos - size] : -1) << std::endl
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<< "B=" << (pos % size - 2 >= 0 ? (int16_t)s[pos - 2] : -1) << std::endl
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<< "C=" << (pos % size - 1 >= 0 ? (int16_t)s[pos - 1] : -1) << std::endl
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<< "X=" << (int16_t)s[pos] << std::endl
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<< "D=" << (pos % size + 1 < size ? (int16_t)s[pos + 1] : -1) << std::endl
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<< "E=" << (pos % size + 2 < size ? (int16_t)s[pos + 2] : -1) << std::endl
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<< "F=" << (pos + size < size * size ? (int16_t)s[pos + size] : -1)
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<< std::endl;
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}
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TEST_P(ClpfSpeedTest, TestSpeed) {
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int w = sizex;
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int h = sizey;
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const int size = 32;
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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DECLARE_ALIGNED(16, uint8_t, s[size * size]);
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DECLARE_ALIGNED(16, uint8_t, d[size * size]);
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int strength;
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int xpos, ypos;
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for (int i = 0; i < size * size; i++) s[i] = rnd.Rand8();
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aom_usec_timer ref_timer;
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aom_usec_timer timer;
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aom_usec_timer_start(&ref_timer);
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for (int c = 0; c < 65536; c++) {
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for (ypos = 0; ypos < size; ypos += h) {
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for (xpos = 0; xpos < size; xpos += w) {
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for (strength = 0; strength < 3; strength++) {
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ref_clpf(s, d, size, size, xpos, ypos, w, h, size, size,
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1 << strength);
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}
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}
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}
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}
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aom_usec_timer_mark(&ref_timer);
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int ref_elapsed_time = aom_usec_timer_elapsed(&ref_timer);
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aom_usec_timer_start(&timer);
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for (int c = 0; c < 65536; c++) {
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for (ypos = 0; ypos < size; ypos += h) {
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for (xpos = 0; xpos < size; xpos += w) {
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for (strength = 0; strength < 3; strength++) {
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clpf(s, d, size, size, xpos, ypos, w, h, size, size, 1 << strength);
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}
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}
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}
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}
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aom_usec_timer_mark(&timer);
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int elapsed_time = aom_usec_timer_elapsed(&timer);
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#if 0
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std::cout << "[ ] C time = " << ref_elapsed_time / 1000
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<< " ms, SIMD time = " << elapsed_time / 1000 << " ms" << std::endl;
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#endif
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EXPECT_GT(ref_elapsed_time, elapsed_time)
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<< "Error: ClpfSpeedTest, SIMD slower than C." << std::endl
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<< "C time: " << ref_elapsed_time << "ms" << std::endl
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<< "SIMD time: " << elapsed_time << "ms" << std::endl;
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}
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using std::tr1::make_tuple;
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// Test all supported architectures and block sizes
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#if HAVE_SSE2
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INSTANTIATE_TEST_CASE_P(
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SSE2, ClpfBlockTest,
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::testing::Values(make_tuple(&aom_clpf_block_sse2, &aom_clpf_block_c, 8, 8),
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make_tuple(&aom_clpf_block_sse2, &aom_clpf_block_c, 8, 4),
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make_tuple(&aom_clpf_block_sse2, &aom_clpf_block_c, 4, 8),
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make_tuple(&aom_clpf_block_sse2, &aom_clpf_block_c, 4,
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4)));
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#endif
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#if HAVE_SSSE3
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INSTANTIATE_TEST_CASE_P(
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SSSE3, ClpfBlockTest,
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::testing::Values(
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make_tuple(&aom_clpf_block_ssse3, &aom_clpf_block_c, 8, 8),
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make_tuple(&aom_clpf_block_ssse3, &aom_clpf_block_c, 8, 4),
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make_tuple(&aom_clpf_block_ssse3, &aom_clpf_block_c, 4, 8),
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make_tuple(&aom_clpf_block_ssse3, &aom_clpf_block_c, 4, 4)));
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#endif
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#if HAVE_SSE4_1
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INSTANTIATE_TEST_CASE_P(
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SSSE4_1, ClpfBlockTest,
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::testing::Values(
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make_tuple(&aom_clpf_block_sse4_1, &aom_clpf_block_c, 8, 8),
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make_tuple(&aom_clpf_block_sse4_1, &aom_clpf_block_c, 8, 4),
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make_tuple(&aom_clpf_block_sse4_1, &aom_clpf_block_c, 4, 8),
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make_tuple(&aom_clpf_block_sse4_1, &aom_clpf_block_c, 4, 4)));
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#endif
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#if HAVE_NEON
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INSTANTIATE_TEST_CASE_P(
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NEON, ClpfBlockTest,
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::testing::Values(make_tuple(&aom_clpf_block_neon, &aom_clpf_block_c, 8, 8),
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make_tuple(&aom_clpf_block_neon, &aom_clpf_block_c, 8, 4),
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make_tuple(&aom_clpf_block_neon, &aom_clpf_block_c, 4, 8),
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make_tuple(&aom_clpf_block_neon, &aom_clpf_block_c, 4,
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4)));
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#endif
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// Test speed for all supported architectures
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#if HAVE_SSE2
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INSTANTIATE_TEST_CASE_P(SSE2, ClpfSpeedTest,
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::testing::Values(make_tuple(&aom_clpf_block_sse2,
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&aom_clpf_block_c, 8, 8)));
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#endif
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#if HAVE_SSSE3
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INSTANTIATE_TEST_CASE_P(SSSE3, ClpfSpeedTest,
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::testing::Values(make_tuple(&aom_clpf_block_ssse3,
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&aom_clpf_block_c, 8, 8)));
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#endif
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#if HAVE_SSE4_1
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INSTANTIATE_TEST_CASE_P(SSSE4_1, ClpfSpeedTest,
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::testing::Values(make_tuple(&aom_clpf_block_ssse3,
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&aom_clpf_block_c, 8, 8)));
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#endif
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#if HAVE_NEON
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INSTANTIATE_TEST_CASE_P(NEON, ClpfSpeedTest,
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::testing::Values(make_tuple(&aom_clpf_block_neon,
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&aom_clpf_block_c, 8, 8)));
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#endif
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} // namespace
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