344 строки
10 KiB
C++
344 строки
10 KiB
C++
/*
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* Copyright (c) 2012 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <math.h>
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#include <stdlib.h>
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#include <string.h>
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#include "third_party/googletest/src/include/gtest/gtest.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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#include "./vp9_rtcd.h"
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#include "vp9/common/vp9_entropy.h"
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#include "vpx/vpx_integer.h"
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extern "C" {
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void vp9_idct8x8_64_add_c(const int16_t *input, uint8_t *output, int pitch);
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}
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using libvpx_test::ACMRandom;
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namespace {
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typedef void (*fdct_t)(const int16_t *in, int16_t *out, int stride);
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typedef void (*idct_t)(const int16_t *in, uint8_t *out, int stride);
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typedef void (*fht_t) (const int16_t *in, int16_t *out, int stride,
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int tx_type);
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typedef void (*iht_t) (const int16_t *in, uint8_t *out, int stride,
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int tx_type);
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typedef std::tr1::tuple<fdct_t, idct_t, int> dct_8x8_param_t;
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typedef std::tr1::tuple<fht_t, iht_t, int> ht_8x8_param_t;
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void fdct8x8_ref(const int16_t *in, int16_t *out, int stride, int tx_type) {
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vp9_fdct8x8_c(in, out, stride);
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}
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void fht8x8_ref(const int16_t *in, int16_t *out, int stride, int tx_type) {
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vp9_fht8x8_c(in, out, stride, tx_type);
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}
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class FwdTrans8x8TestBase {
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public:
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virtual ~FwdTrans8x8TestBase() {}
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protected:
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virtual void RunFwdTxfm(int16_t *in, int16_t *out, int stride) = 0;
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virtual void RunInvTxfm(int16_t *out, uint8_t *dst, int stride) = 0;
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void RunSignBiasCheck() {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_input_block, 64);
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_output_block, 64);
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int count_sign_block[64][2];
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const int count_test_block = 100000;
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memset(count_sign_block, 0, sizeof(count_sign_block));
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-255, 255].
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for (int j = 0; j < 64; ++j)
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test_input_block[j] = rnd.Rand8() - rnd.Rand8();
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REGISTER_STATE_CHECK(
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RunFwdTxfm(test_input_block, test_output_block, pitch_));
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for (int j = 0; j < 64; ++j) {
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if (test_output_block[j] < 0)
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++count_sign_block[j][0];
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else if (test_output_block[j] > 0)
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++count_sign_block[j][1];
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}
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}
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for (int j = 0; j < 64; ++j) {
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const int diff = abs(count_sign_block[j][0] - count_sign_block[j][1]);
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const int max_diff = 1125;
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EXPECT_LT(diff, max_diff)
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<< "Error: 8x8 FDCT/FHT has a sign bias > "
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<< 1. * max_diff / count_test_block * 100 << "%"
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<< " for input range [-255, 255] at index " << j
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<< " count0: " << count_sign_block[j][0]
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<< " count1: " << count_sign_block[j][1]
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<< " diff: " << diff;
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}
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memset(count_sign_block, 0, sizeof(count_sign_block));
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-15, 15].
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for (int j = 0; j < 64; ++j)
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test_input_block[j] = (rnd.Rand8() >> 4) - (rnd.Rand8() >> 4);
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REGISTER_STATE_CHECK(
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RunFwdTxfm(test_input_block, test_output_block, pitch_));
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for (int j = 0; j < 64; ++j) {
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if (test_output_block[j] < 0)
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++count_sign_block[j][0];
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else if (test_output_block[j] > 0)
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++count_sign_block[j][1];
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}
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}
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for (int j = 0; j < 64; ++j) {
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const int diff = abs(count_sign_block[j][0] - count_sign_block[j][1]);
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const int max_diff = 10000;
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EXPECT_LT(diff, max_diff)
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<< "Error: 4x4 FDCT/FHT has a sign bias > "
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<< 1. * max_diff / count_test_block * 100 << "%"
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<< " for input range [-15, 15] at index " << j
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<< " count0: " << count_sign_block[j][0]
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<< " count1: " << count_sign_block[j][1]
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<< " diff: " << diff;
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}
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}
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void RunRoundTripErrorCheck() {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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int max_error = 0;
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int total_error = 0;
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const int count_test_block = 100000;
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_input_block, 64);
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_temp_block, 64);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, dst, 64);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, src, 64);
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-255, 255].
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for (int j = 0; j < 64; ++j) {
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src[j] = rnd.Rand8();
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dst[j] = rnd.Rand8();
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test_input_block[j] = src[j] - dst[j];
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}
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REGISTER_STATE_CHECK(
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RunFwdTxfm(test_input_block, test_temp_block, pitch_));
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for (int j = 0; j < 64; ++j) {
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if (test_temp_block[j] > 0) {
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test_temp_block[j] += 2;
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test_temp_block[j] /= 4;
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test_temp_block[j] *= 4;
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} else {
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test_temp_block[j] -= 2;
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test_temp_block[j] /= 4;
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test_temp_block[j] *= 4;
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}
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}
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REGISTER_STATE_CHECK(
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RunInvTxfm(test_temp_block, dst, pitch_));
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for (int j = 0; j < 64; ++j) {
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const int diff = dst[j] - src[j];
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const int error = diff * diff;
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if (max_error < error)
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max_error = error;
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total_error += error;
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}
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}
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EXPECT_GE(1, max_error)
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<< "Error: 8x8 FDCT/IDCT or FHT/IHT has an individual"
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<< " roundtrip error > 1";
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EXPECT_GE(count_test_block/5, total_error)
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<< "Error: 8x8 FDCT/IDCT or FHT/IHT has average roundtrip "
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<< "error > 1/5 per block";
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}
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void RunExtremalCheck() {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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int max_error = 0;
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int total_error = 0;
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const int count_test_block = 100000;
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_input_block, 64);
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_temp_block, 64);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, dst, 64);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, src, 64);
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-255, 255].
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for (int j = 0; j < 64; ++j) {
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src[j] = rnd.Rand8() % 2 ? 255 : 0;
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dst[j] = src[j] > 0 ? 0 : 255;
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test_input_block[j] = src[j] - dst[j];
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}
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REGISTER_STATE_CHECK(
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RunFwdTxfm(test_input_block, test_temp_block, pitch_));
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REGISTER_STATE_CHECK(
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RunInvTxfm(test_temp_block, dst, pitch_));
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for (int j = 0; j < 64; ++j) {
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const int diff = dst[j] - src[j];
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const int error = diff * diff;
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if (max_error < error)
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max_error = error;
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total_error += error;
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}
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EXPECT_GE(1, max_error)
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<< "Error: Extremal 8x8 FDCT/IDCT or FHT/IHT has"
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<< "an individual roundtrip error > 1";
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EXPECT_GE(count_test_block/5, total_error)
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<< "Error: Extremal 8x8 FDCT/IDCT or FHT/IHT has average"
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<< " roundtrip error > 1/5 per block";
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}
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}
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int pitch_;
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int tx_type_;
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fht_t fwd_txfm_ref;
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};
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class FwdTrans8x8DCT
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: public FwdTrans8x8TestBase,
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public ::testing::TestWithParam<dct_8x8_param_t> {
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public:
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virtual ~FwdTrans8x8DCT() {}
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virtual void SetUp() {
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fwd_txfm_ = GET_PARAM(0);
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inv_txfm_ = GET_PARAM(1);
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tx_type_ = GET_PARAM(2);
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pitch_ = 8;
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fwd_txfm_ref = fdct8x8_ref;
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}
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virtual void TearDown() { libvpx_test::ClearSystemState(); }
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protected:
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void RunFwdTxfm(int16_t *in, int16_t *out, int stride) {
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fwd_txfm_(in, out, stride);
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}
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void RunInvTxfm(int16_t *out, uint8_t *dst, int stride) {
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inv_txfm_(out, dst, stride);
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}
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fdct_t fwd_txfm_;
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idct_t inv_txfm_;
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};
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TEST_P(FwdTrans8x8DCT, SignBiasCheck) {
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RunSignBiasCheck();
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}
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TEST_P(FwdTrans8x8DCT, RoundTripErrorCheck) {
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RunRoundTripErrorCheck();
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}
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TEST_P(FwdTrans8x8DCT, ExtremalCheck) {
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RunExtremalCheck();
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}
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class FwdTrans8x8HT
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: public FwdTrans8x8TestBase,
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public ::testing::TestWithParam<ht_8x8_param_t> {
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public:
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virtual ~FwdTrans8x8HT() {}
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virtual void SetUp() {
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fwd_txfm_ = GET_PARAM(0);
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inv_txfm_ = GET_PARAM(1);
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tx_type_ = GET_PARAM(2);
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pitch_ = 8;
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fwd_txfm_ref = fht8x8_ref;
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}
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virtual void TearDown() { libvpx_test::ClearSystemState(); }
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protected:
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void RunFwdTxfm(int16_t *in, int16_t *out, int stride) {
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fwd_txfm_(in, out, stride, tx_type_);
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}
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void RunInvTxfm(int16_t *out, uint8_t *dst, int stride) {
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inv_txfm_(out, dst, stride, tx_type_);
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}
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fht_t fwd_txfm_;
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iht_t inv_txfm_;
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};
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TEST_P(FwdTrans8x8HT, SignBiasCheck) {
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RunSignBiasCheck();
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}
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TEST_P(FwdTrans8x8HT, RoundTripErrorCheck) {
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RunRoundTripErrorCheck();
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}
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TEST_P(FwdTrans8x8HT, ExtremalCheck) {
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RunExtremalCheck();
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}
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using std::tr1::make_tuple;
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INSTANTIATE_TEST_CASE_P(
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C, FwdTrans8x8DCT,
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::testing::Values(
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make_tuple(&vp9_fdct8x8_c, &vp9_idct8x8_64_add_c, 0)));
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INSTANTIATE_TEST_CASE_P(
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C, FwdTrans8x8HT,
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::testing::Values(
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make_tuple(&vp9_fht8x8_c, &vp9_iht8x8_64_add_c, 0),
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make_tuple(&vp9_fht8x8_c, &vp9_iht8x8_64_add_c, 1),
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make_tuple(&vp9_fht8x8_c, &vp9_iht8x8_64_add_c, 2),
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make_tuple(&vp9_fht8x8_c, &vp9_iht8x8_64_add_c, 3)));
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#if HAVE_NEON
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INSTANTIATE_TEST_CASE_P(
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NEON, FwdTrans8x8DCT,
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::testing::Values(
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make_tuple(&vp9_fdct8x8_c, &vp9_idct8x8_64_add_neon, 0)));
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INSTANTIATE_TEST_CASE_P(
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DISABLED_NEON, FwdTrans8x8HT,
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::testing::Values(
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make_tuple(&vp9_fht8x8_c, &vp9_iht8x8_64_add_neon, 0),
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make_tuple(&vp9_fht8x8_c, &vp9_iht8x8_64_add_neon, 1),
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make_tuple(&vp9_fht8x8_c, &vp9_iht8x8_64_add_neon, 2),
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make_tuple(&vp9_fht8x8_c, &vp9_iht8x8_64_add_neon, 3)));
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#endif
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#if HAVE_SSE2
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INSTANTIATE_TEST_CASE_P(
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SSE2, FwdTrans8x8DCT,
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::testing::Values(
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make_tuple(&vp9_fdct8x8_sse2, &vp9_idct8x8_64_add_sse2, 0)));
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INSTANTIATE_TEST_CASE_P(
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SSE2, FwdTrans8x8HT,
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::testing::Values(
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make_tuple(&vp9_fht8x8_sse2, &vp9_iht8x8_64_add_sse2, 0),
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make_tuple(&vp9_fht8x8_sse2, &vp9_iht8x8_64_add_sse2, 1),
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make_tuple(&vp9_fht8x8_sse2, &vp9_iht8x8_64_add_sse2, 2),
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make_tuple(&vp9_fht8x8_sse2, &vp9_iht8x8_64_add_sse2, 3)));
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#endif
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} // namespace
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