Add test for partial inverse transforms
To make sure the results they produce to match their full versions Change-Id: Ib00b036fecf43fe20af716acfc580af18ef87757
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Yaowu Xu
parent
d62af81f6a
commit
ed7e3d2447
@ -26,6 +26,11 @@ class ACMRandom {
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void Reset(int seed) {
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random_.Reseed(seed);
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}
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uint16_t Rand16(void) {
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const uint32_t value =
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random_.Generate(testing::internal::Random::kMaxRange);
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return (value >> 16) & 0xffff;
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}
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uint8_t Rand8(void) {
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const uint32_t value =
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172
test/partial_idct_test.cc
Normal file
172
test/partial_idct_test.cc
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@ -0,0 +1,172 @@
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/*
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* Copyright (c) 2013 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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extern "C" {
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#include "./vp9_rtcd.h"
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#include "vp9/common/vp9_blockd.h"
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#include "vp9/common/vp9_scan.h"
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}
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#include "vpx/vpx_integer.h"
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using libvpx_test::ACMRandom;
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namespace {
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typedef void (*fwd_txfm_t)(const int16_t *in, int16_t *out, int stride);
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typedef void (*inv_txfm_t)(const int16_t *in, uint8_t *out, int stride);
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typedef std::tr1::tuple<inv_txfm_t,
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inv_txfm_t,
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TX_SIZE, int> partial_itxfm_param_t;
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const int kMaxNumCoeffs = 1024;
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class PartialIDctTest : public ::testing::TestWithParam<partial_itxfm_param_t> {
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public:
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virtual ~PartialIDctTest() {}
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virtual void SetUp() {
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full_itxfm_ = GET_PARAM(0);
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partial_itxfm_ = GET_PARAM(1);
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tx_size_ = GET_PARAM(2);
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last_nonzero_ = GET_PARAM(3);
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}
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virtual void TearDown() { libvpx_test::ClearSystemState(); }
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protected:
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int last_nonzero_;
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TX_SIZE tx_size_;
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inv_txfm_t full_itxfm_;
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inv_txfm_t partial_itxfm_;
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};
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TEST_P(PartialIDctTest, ResultsMatch) {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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int size;
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switch (tx_size_) {
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case TX_4X4:
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size = 4;
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break;
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case TX_8X8:
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size = 8;
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break;
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case TX_16X16:
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size = 16;
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break;
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case TX_32X32:
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size = 32;
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break;
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default:
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ASSERT_TRUE(0) << "Wrong Size!";
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break;
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}
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_coef_block1, kMaxNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_coef_block2, kMaxNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, dst1, kMaxNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, dst2, kMaxNumCoeffs);
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const int count_test_block = 1000;
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const int max_coeff = 32766 / 4;
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const int block_size = size * size;
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int max_error = 0;
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for (int i = 0; i < count_test_block; ++i) {
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// clear out destination buffer
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memset(dst1, 0, sizeof(*dst1) * block_size);
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memset(dst2, 0, sizeof(*dst2) * block_size);
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memset(test_coef_block1, 0, sizeof(*test_coef_block1) * block_size);
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memset(test_coef_block2, 0, sizeof(*test_coef_block2) * block_size);
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int max_energy_leftover = max_coeff * max_coeff;
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for (int j = 0; j < last_nonzero_; ++j) {
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int16_t coef = static_cast<int16_t>(sqrt(max_energy_leftover) *
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(rnd.Rand16() - 32768) / 65536);
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max_energy_leftover -= coef * coef;
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if (max_energy_leftover < 0) {
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max_energy_leftover = 0;
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coef = 0;
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}
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test_coef_block1[vp9_default_scan_orders[tx_size_].scan[j]] = coef;
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}
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memcpy(test_coef_block2, test_coef_block1,
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sizeof(*test_coef_block2) * block_size);
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REGISTER_STATE_CHECK(full_itxfm_(test_coef_block1, dst1, size));
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REGISTER_STATE_CHECK(partial_itxfm_(test_coef_block2, dst2, size));
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for (int j = 0; j < block_size; ++j) {
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const int diff = dst1[j] - dst2[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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}
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}
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EXPECT_EQ(0, max_error)
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<< "Error: partial inverse transform produces different results";
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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, PartialIDctTest,
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::testing::Values(
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make_tuple(vp9_idct32x32_1024_add_c,
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vp9_idct32x32_34_add_c,
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TX_32X32, 34),
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make_tuple(vp9_idct32x32_1024_add_c,
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vp9_idct32x32_1_add_c,
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TX_32X32, 1),
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make_tuple(vp9_idct16x16_256_add_c,
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vp9_idct16x16_10_add_c,
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TX_16X16, 10),
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make_tuple(vp9_idct16x16_256_add_c,
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vp9_idct16x16_1_add_c,
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TX_16X16, 1),
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make_tuple(vp9_idct8x8_64_add_c,
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vp9_idct8x8_10_add_c,
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TX_8X8, 10),
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make_tuple(vp9_idct8x8_64_add_c,
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vp9_idct8x8_1_add_c,
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TX_8X8, 1),
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make_tuple(vp9_idct4x4_16_add_c,
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vp9_idct4x4_1_add_c,
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TX_4X4, 1)));
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#if HAVE_SSE2
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INSTANTIATE_TEST_CASE_P(
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SSE2, PartialIDctTest,
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::testing::Values(
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make_tuple(vp9_idct32x32_1024_add_c,
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vp9_idct32x32_34_add_sse2,
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TX_32X32, 34),
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make_tuple(vp9_idct32x32_1024_add_c,
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vp9_idct32x32_1_add_sse2,
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TX_32X32, 1),
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make_tuple(vp9_idct16x16_256_add_c,
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vp9_idct16x16_10_add_sse2,
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TX_16X16, 10),
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make_tuple(vp9_idct16x16_256_add_c,
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vp9_idct16x16_1_add_sse2,
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TX_16X16, 1),
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make_tuple(vp9_idct8x8_64_add_c,
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vp9_idct8x8_10_add_sse2,
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TX_8X8, 10),
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make_tuple(vp9_idct8x8_64_add_c,
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vp9_idct8x8_1_add_sse2,
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TX_8X8, 1),
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make_tuple(vp9_idct4x4_16_add_c,
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vp9_idct4x4_1_add_sse2,
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TX_4X4, 1)));
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#endif
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} // namespace
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@ -88,6 +88,7 @@ LIBVPX_TEST_SRCS-yes += vp9_boolcoder_test.cc
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# IDCT test currently depends on FDCT function
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LIBVPX_TEST_SRCS-yes += idct8x8_test.cc
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LIBVPX_TEST_SRCS-yes += partial_idct_test.cc
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LIBVPX_TEST_SRCS-yes += superframe_test.cc
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LIBVPX_TEST_SRCS-yes += tile_independence_test.cc
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endif
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