7825022daa
This would have caught the bug introduced in patch set 1 of https://chromium-review.googlesource.com/#/c/397378/ Change-Id: I9c6d5d9c4c98aed5ac48c4fb1c4ff4131b0df1d5
361 lines
12 KiB
C++
361 lines
12 KiB
C++
/*
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* Copyright (c) 2016 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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#ifndef TEST_TRANSFORM_TEST_BASE_H_
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#define TEST_TRANSFORM_TEST_BASE_H_
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#include "./aom_config.h"
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#include "aom_mem/aom_mem.h"
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#include "aom/aom_codec.h"
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namespace libaom_test {
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// Note:
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// Same constant are defined in av1/common/av1_entropy.h and
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// av1/common/entropy.h. Goal is to make this base class
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// to use for future codec transform testing. But including
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// either of them would lead to compiling error when we do
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// unit test for another codec. Suggest to move the definition
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// to a aom header file.
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const int kDctMaxValue = 16384;
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typedef void (*FhtFunc)(const int16_t *in, tran_low_t *out, int stride,
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int tx_type);
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typedef void (*IhtFunc)(const tran_low_t *in, uint8_t *out, int stride,
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int tx_type);
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class TransformTestBase {
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public:
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virtual ~TransformTestBase() {}
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protected:
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virtual void RunFwdTxfm(const int16_t *in, tran_low_t *out, int stride) = 0;
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virtual void RunInvTxfm(const tran_low_t *out, uint8_t *dst, int stride) = 0;
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void RunAccuracyCheck(int limit) {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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uint32_t max_error = 0;
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int64_t total_error = 0;
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const int count_test_block = 10000;
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int16_t *test_input_block = reinterpret_cast<int16_t *>(
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aom_memalign(16, sizeof(int16_t) * num_coeffs_));
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tran_low_t *test_temp_block = reinterpret_cast<tran_low_t *>(
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aom_memalign(16, sizeof(tran_low_t) * num_coeffs_));
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uint8_t *dst = reinterpret_cast<uint8_t *>(
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aom_memalign(16, sizeof(uint8_t) * num_coeffs_));
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uint8_t *src = reinterpret_cast<uint8_t *>(
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aom_memalign(16, sizeof(uint8_t) * num_coeffs_));
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#if CONFIG_AOM_HIGHBITDEPTH
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uint16_t *dst16 = reinterpret_cast<uint16_t *>(
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aom_memalign(16, sizeof(uint16_t) * num_coeffs_));
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uint16_t *src16 = reinterpret_cast<uint16_t *>(
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aom_memalign(16, sizeof(uint16_t) * num_coeffs_));
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#endif
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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 < num_coeffs_; ++j) {
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if (bit_depth_ == AOM_BITS_8) {
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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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#if CONFIG_AOM_HIGHBITDEPTH
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} else {
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src16[j] = rnd.Rand16() & mask_;
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dst16[j] = rnd.Rand16() & mask_;
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test_input_block[j] = src16[j] - dst16[j];
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#endif
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}
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}
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ASM_REGISTER_STATE_CHECK(
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RunFwdTxfm(test_input_block, test_temp_block, pitch_));
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if (bit_depth_ == AOM_BITS_8) {
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ASM_REGISTER_STATE_CHECK(RunInvTxfm(test_temp_block, dst, pitch_));
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#if CONFIG_AOM_HIGHBITDEPTH
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} else {
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ASM_REGISTER_STATE_CHECK(
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RunInvTxfm(test_temp_block, CONVERT_TO_BYTEPTR(dst16), pitch_));
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#endif
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}
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for (int j = 0; j < num_coeffs_; ++j) {
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#if CONFIG_AOM_HIGHBITDEPTH
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const uint32_t diff =
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bit_depth_ == AOM_BITS_8 ? dst[j] - src[j] : dst16[j] - src16[j];
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#else
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ASSERT_EQ(AOM_BITS_8, bit_depth_);
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const uint32_t diff = dst[j] - src[j];
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#endif
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const uint32_t error = diff * diff;
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if (max_error < error) max_error = error;
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total_error += error;
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}
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}
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EXPECT_GE(static_cast<uint32_t>(limit), max_error)
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<< "Error: 4x4 FHT/IHT has an individual round trip error > " << limit;
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EXPECT_GE(count_test_block * limit, total_error)
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<< "Error: 4x4 FHT/IHT has average round trip error > " << limit
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<< " per block";
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aom_free(test_input_block);
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aom_free(test_temp_block);
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aom_free(dst);
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aom_free(src);
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#if CONFIG_AOM_HIGHBITDEPTH
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aom_free(dst16);
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aom_free(src16);
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#endif
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}
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void RunCoeffCheck() {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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const int count_test_block = 5000;
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// Use a stride value which is not the width of any transform, to catch
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// cases where the transforms use the stride incorrectly.
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int stride = 96;
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int16_t *input_block = reinterpret_cast<int16_t *>(
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aom_memalign(16, sizeof(int16_t) * stride * height_));
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tran_low_t *output_ref_block = reinterpret_cast<tran_low_t *>(
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aom_memalign(16, sizeof(tran_low_t) * num_coeffs_));
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tran_low_t *output_block = reinterpret_cast<tran_low_t *>(
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aom_memalign(16, sizeof(tran_low_t) * num_coeffs_));
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for (int i = 0; i < count_test_block; ++i) {
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int j, k;
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for (j = 0; j < height_; ++j) {
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for (k = 0; k < pitch_; ++k) {
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int in_idx = j * stride + k;
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int out_idx = j * pitch_ + k;
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input_block[in_idx] = (rnd.Rand16() & mask_) - (rnd.Rand16() & mask_);
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if (bit_depth_ == AOM_BITS_8) {
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output_block[out_idx] = output_ref_block[out_idx] = rnd.Rand8();
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#if CONFIG_AOM_HIGHBITDEPTH
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} else {
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output_block[out_idx] = output_ref_block[out_idx] =
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rnd.Rand16() & mask_;
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#endif
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}
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}
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}
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fwd_txfm_ref(input_block, output_ref_block, stride, tx_type_);
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ASM_REGISTER_STATE_CHECK(RunFwdTxfm(input_block, output_block, stride));
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// The minimum quant value is 4.
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for (j = 0; j < height_; ++j) {
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for (k = 0; k < pitch_; ++k) {
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int out_idx = j * pitch_ + k;
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ASSERT_EQ(output_block[out_idx], output_ref_block[out_idx])
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<< "Error: not bit-exact result at index: " << out_idx
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<< " at test block: " << i;
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}
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}
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}
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aom_free(input_block);
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aom_free(output_ref_block);
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aom_free(output_block);
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}
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void RunInvCoeffCheck() {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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const int count_test_block = 5000;
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// Use a stride value which is not the width of any transform, to catch
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// cases where the transforms use the stride incorrectly.
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int stride = 96;
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int16_t *input_block = reinterpret_cast<int16_t *>(
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aom_memalign(16, sizeof(int16_t) * num_coeffs_));
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tran_low_t *trans_block = reinterpret_cast<tran_low_t *>(
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aom_memalign(16, sizeof(tran_low_t) * num_coeffs_));
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uint8_t *output_block = reinterpret_cast<uint8_t *>(
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aom_memalign(16, sizeof(uint8_t) * stride * height_));
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uint8_t *output_ref_block = reinterpret_cast<uint8_t *>(
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aom_memalign(16, sizeof(uint8_t) * stride * height_));
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-mask_, mask_].
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int j, k;
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for (j = 0; j < height_; ++j) {
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for (k = 0; k < pitch_; ++k) {
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int in_idx = j * pitch_ + k;
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int out_idx = j * stride + k;
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input_block[in_idx] = (rnd.Rand16() & mask_) - (rnd.Rand16() & mask_);
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output_ref_block[out_idx] = rnd.Rand16() & mask_;
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output_block[out_idx] = output_ref_block[out_idx];
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}
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}
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fwd_txfm_ref(input_block, trans_block, pitch_, tx_type_);
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inv_txfm_ref(trans_block, output_ref_block, stride, tx_type_);
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ASM_REGISTER_STATE_CHECK(RunInvTxfm(trans_block, output_block, stride));
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for (j = 0; j < height_; ++j) {
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for (k = 0; k < pitch_; ++k) {
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int out_idx = j * stride + k;
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ASSERT_EQ(output_block[out_idx], output_ref_block[out_idx])
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<< "Error: not bit-exact result at index: " << out_idx
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<< " at test block: " << i;
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}
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}
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}
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aom_free(input_block);
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aom_free(trans_block);
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aom_free(output_ref_block);
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aom_free(output_block);
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}
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void RunMemCheck() {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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const int count_test_block = 5000;
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int16_t *input_extreme_block = reinterpret_cast<int16_t *>(
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aom_memalign(16, sizeof(int16_t) * num_coeffs_));
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tran_low_t *output_ref_block = reinterpret_cast<tran_low_t *>(
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aom_memalign(16, sizeof(tran_low_t) * num_coeffs_));
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tran_low_t *output_block = reinterpret_cast<tran_low_t *>(
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aom_memalign(16, sizeof(tran_low_t) * num_coeffs_));
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-mask_, mask_].
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for (int j = 0; j < num_coeffs_; ++j) {
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input_extreme_block[j] = rnd.Rand8() % 2 ? mask_ : -mask_;
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}
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if (i == 0) {
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for (int j = 0; j < num_coeffs_; ++j) input_extreme_block[j] = mask_;
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} else if (i == 1) {
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for (int j = 0; j < num_coeffs_; ++j) input_extreme_block[j] = -mask_;
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}
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fwd_txfm_ref(input_extreme_block, output_ref_block, pitch_, tx_type_);
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ASM_REGISTER_STATE_CHECK(
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RunFwdTxfm(input_extreme_block, output_block, pitch_));
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int row_length = FindRowLength();
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// The minimum quant value is 4.
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for (int j = 0; j < num_coeffs_; ++j) {
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EXPECT_EQ(output_block[j], output_ref_block[j]);
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EXPECT_GE(row_length * kDctMaxValue << (bit_depth_ - 8),
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abs(output_block[j]))
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<< "Error: NxN FDCT has coefficient larger than N*DCT_MAX_VALUE";
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}
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}
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aom_free(input_extreme_block);
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aom_free(output_ref_block);
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aom_free(output_block);
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}
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void RunInvAccuracyCheck(int limit) {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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const int count_test_block = 1000;
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int16_t *in = reinterpret_cast<int16_t *>(
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aom_memalign(16, sizeof(int16_t) * num_coeffs_));
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tran_low_t *coeff = reinterpret_cast<tran_low_t *>(
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aom_memalign(16, sizeof(tran_low_t) * num_coeffs_));
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uint8_t *dst = reinterpret_cast<uint8_t *>(
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aom_memalign(16, sizeof(uint8_t) * num_coeffs_));
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uint8_t *src = reinterpret_cast<uint8_t *>(
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aom_memalign(16, sizeof(uint8_t) * num_coeffs_));
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#if CONFIG_AOM_HIGHBITDEPTH
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uint16_t *dst16 = reinterpret_cast<uint16_t *>(
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aom_memalign(16, sizeof(uint16_t) * num_coeffs_));
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uint16_t *src16 = reinterpret_cast<uint16_t *>(
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aom_memalign(16, sizeof(uint16_t) * num_coeffs_));
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#endif
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-mask_, mask_].
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for (int j = 0; j < num_coeffs_; ++j) {
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if (bit_depth_ == AOM_BITS_8) {
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src[j] = rnd.Rand8();
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dst[j] = rnd.Rand8();
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in[j] = src[j] - dst[j];
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#if CONFIG_AOM_HIGHBITDEPTH
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} else {
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src16[j] = rnd.Rand16() & mask_;
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dst16[j] = rnd.Rand16() & mask_;
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in[j] = src16[j] - dst16[j];
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#endif
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}
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}
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fwd_txfm_ref(in, coeff, pitch_, tx_type_);
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if (bit_depth_ == AOM_BITS_8) {
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ASM_REGISTER_STATE_CHECK(RunInvTxfm(coeff, dst, pitch_));
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#if CONFIG_AOM_HIGHBITDEPTH
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} else {
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ASM_REGISTER_STATE_CHECK(
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RunInvTxfm(coeff, CONVERT_TO_BYTEPTR(dst16), pitch_));
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#endif
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}
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for (int j = 0; j < num_coeffs_; ++j) {
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#if CONFIG_AOM_HIGHBITDEPTH
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const uint32_t diff =
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bit_depth_ == AOM_BITS_8 ? dst[j] - src[j] : dst16[j] - src16[j];
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#else
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const uint32_t diff = dst[j] - src[j];
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#endif
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const uint32_t error = diff * diff;
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EXPECT_GE(static_cast<uint32_t>(limit), error)
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<< "Error: 4x4 IDCT has error " << error << " at index " << j;
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}
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}
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aom_free(in);
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aom_free(coeff);
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aom_free(dst);
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aom_free(src);
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#if CONFIG_AOM_HIGHBITDEPTH
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aom_free(src16);
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aom_free(dst16);
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#endif
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}
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int pitch_;
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int height_;
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int tx_type_;
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FhtFunc fwd_txfm_ref;
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IhtFunc inv_txfm_ref;
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aom_bit_depth_t bit_depth_;
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int mask_;
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int num_coeffs_;
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private:
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// Assume transform size is 4x4, 8x8, 16x16,...
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int FindRowLength() const {
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int row = 4;
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if (16 == num_coeffs_) {
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row = 4;
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} else if (64 == num_coeffs_) {
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row = 8;
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} else if (256 == num_coeffs_) {
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row = 16;
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} else if (1024 == num_coeffs_) {
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row = 32;
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}
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return row;
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}
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};
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} // namespace libaom_test
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#endif // TEST_TRANSFORM_TEST_BASE_H_
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