test/dct32x32_test.cc - avm - Git at Google


            
            /*

            
             * Copyright (c) 2016, Alliance for Open Media. All rights reserved

            
             *

            
             * This source code is subject to the terms of the BSD 2 Clause License and

            
             * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License

            
             * was not distributed with this source code in the LICENSE file, you can

            
             * obtain it at www.aomedia.org/license/software. If the Alliance for Open

            
             * Media Patent License 1.0 was not distributed with this source code in the

            
             * PATENTS file, you can obtain it at www.aomedia.org/license/patent.

            
            */


            #include <math.h>

            
            #include <stdlib.h>

            
            #include <string.h>


            #include "third_party/googletest/src/googletest/include/gtest/gtest.h"


            #include "./av1_rtcd.h"

            
            #include "./aom_config.h"

            
            #include "./aom_dsp_rtcd.h"

            
            #include "test/acm_random.h"

            
            #include "test/clear_system_state.h"

            
            #include "test/register_state_check.h"

            
            #include "test/util.h"

            
            #include "av1/common/entropy.h"

            
            #include "aom/aom_codec.h"

            
            #include "aom/aom_integer.h"

            
            #include "aom_ports/mem.h"

            
            #include "aom_ports/msvc.h"  // for round()


            using libaom_test::ACMRandom;


            namespace {


            const int kNumCoeffs = 1024;

            
            const double kPi = 3.141592653589793238462643383279502884;

            
            void reference_32x32_dct_1d(const double in[32], double out[32]) {

            
              const double kInvSqrt2 = 0.707106781186547524400844362104;

            
              for (int k = 0; k < 32; k++) {

            
                out[k] = 0.0;

            
                for (int n = 0; n < 32; n++)

            
                  out[k] += in[n] * cos(kPi * (2 * n + 1) * k / 64.0);

            
                if (k == 0) out[k] = out[k] * kInvSqrt2;

            
              }

            
            }


            void reference_32x32_dct_2d(const int16_t input[kNumCoeffs],

            
                                        double output[kNumCoeffs]) {

            
              // First transform columns

            
              for (int i = 0; i < 32; ++i) {

            
                double temp_in[32], temp_out[32];

            
                for (int j = 0; j < 32; ++j) temp_in[j] = input[j * 32 + i];

            
                reference_32x32_dct_1d(temp_in, temp_out);

            
                for (int j = 0; j < 32; ++j) output[j * 32 + i] = temp_out[j];

            
              }

            
              // Then transform rows

            
              for (int i = 0; i < 32; ++i) {

            
                double temp_in[32], temp_out[32];

            
                for (int j = 0; j < 32; ++j) temp_in[j] = output[j + i * 32];

            
                reference_32x32_dct_1d(temp_in, temp_out);

            
                // Scale by some magic number

            
                for (int j = 0; j < 32; ++j) output[j + i * 32] = temp_out[j] / 4;

            
              }

            
            }


            typedef void (*FwdTxfmFunc)(const int16_t *in, tran_low_t *out, int stride);

            
            typedef void (*InvTxfmFunc)(const tran_low_t *in, uint8_t *out, int stride);


            typedef std::tr1::tuple<FwdTxfmFunc, InvTxfmFunc, int, aom_bit_depth_t>

            
                Trans32x32Param;


            class Trans32x32Test : public ::testing::TestWithParam<Trans32x32Param> {

            
             public:

            
              virtual ~Trans32x32Test() {}

            
              virtual void SetUp() {

            
                fwd_txfm_ = GET_PARAM(0);

            
                inv_txfm_ = GET_PARAM(1);

            
                version_ = GET_PARAM(2);  // 0: high precision forward transform

            
                                          // 1: low precision version for rd loop

            
                bit_depth_ = GET_PARAM(3);

            
                mask_ = (1 << bit_depth_) - 1;

            
              }


              virtual void TearDown() { libaom_test::ClearSystemState(); }


             protected:

            
              int version_;

            
              aom_bit_depth_t bit_depth_;

            
              int mask_;

            
              FwdTxfmFunc fwd_txfm_;

            
              InvTxfmFunc inv_txfm_;

            
            };


            TEST_P(Trans32x32Test, AccuracyCheck) {

            
              ACMRandom rnd(ACMRandom::DeterministicSeed());

            
              uint32_t max_error = 0;

            
              int64_t total_error = 0;

            
              const int count_test_block = 10000;

            
              DECLARE_ALIGNED(16, int16_t, test_input_block[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, tran_low_t, test_temp_block[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, uint8_t, dst[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, uint8_t, src[kNumCoeffs]);

            
            #if CONFIG_HIGHBITDEPTH

            
              DECLARE_ALIGNED(16, uint16_t, dst16[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, uint16_t, src16[kNumCoeffs]);

            
            #endif


              for (int i = 0; i < count_test_block; ++i) {

            
                // Initialize a test block with input range [-mask_, mask_].

            
                for (int j = 0; j < kNumCoeffs; ++j) {

            
                  if (bit_depth_ == AOM_BITS_8) {

            
                    src[j] = rnd.Rand8();

            
                    dst[j] = rnd.Rand8();

            
                    test_input_block[j] = src[j] - dst[j];

            
            #if CONFIG_HIGHBITDEPTH

            
                  } else {

            
                    src16[j] = rnd.Rand16() & mask_;

            
                    dst16[j] = rnd.Rand16() & mask_;

            
                    test_input_block[j] = src16[j] - dst16[j];

            
            #endif

            
                  }

            
                }


                ASM_REGISTER_STATE_CHECK(fwd_txfm_(test_input_block, test_temp_block, 32));

            
                if (bit_depth_ == AOM_BITS_8) {

            
                  ASM_REGISTER_STATE_CHECK(inv_txfm_(test_temp_block, dst, 32));

            
            #if CONFIG_HIGHBITDEPTH

            
                } else {

            
                  ASM_REGISTER_STATE_CHECK(

            
                      inv_txfm_(test_temp_block, CONVERT_TO_BYTEPTR(dst16), 32));

            
            #endif

            
                }


                for (int j = 0; j < kNumCoeffs; ++j) {

            
            #if CONFIG_HIGHBITDEPTH

            
                  const int32_t diff =

            
                      bit_depth_ == AOM_BITS_8 ? dst[j] - src[j] : dst16[j] - src16[j];

            
            #else

            
                  const int32_t diff = dst[j] - src[j];

            
            #endif

            
                  const uint32_t error = diff * diff;

            
                  if (max_error < error) max_error = error;

            
                  total_error += error;

            
                }

            
              }


              if (version_ == 1) {

            
                max_error /= 2;

            
                total_error /= 45;

            
              }


              EXPECT_GE(1u << 2 * (bit_depth_ - 8), max_error)

            
                  << "Error: 32x32 FDCT/IDCT has an individual round-trip error > 1";


              EXPECT_GE(count_test_block << 2 * (bit_depth_ - 8), total_error)

            
                  << "Error: 32x32 FDCT/IDCT has average round-trip error > 1 per block";

            
            }


            TEST_P(Trans32x32Test, CoeffCheck) {

            
              ACMRandom rnd(ACMRandom::DeterministicSeed());

            
              const int count_test_block = 1000;


              DECLARE_ALIGNED(16, int16_t, input_block[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, tran_low_t, output_ref_block[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, tran_low_t, output_block[kNumCoeffs]);


              for (int i = 0; i < count_test_block; ++i) {

            
                for (int j = 0; j < kNumCoeffs; ++j)

            
                  input_block[j] = (rnd.Rand16() & mask_) - (rnd.Rand16() & mask_);


                const int stride = 32;

            
                aom_fdct32x32_c(input_block, output_ref_block, stride);

            
                ASM_REGISTER_STATE_CHECK(fwd_txfm_(input_block, output_block, stride));


                if (version_ == 0) {

            
                  for (int j = 0; j < kNumCoeffs; ++j)

            
                    EXPECT_EQ(output_block[j], output_ref_block[j])

            
                        << "Error: 32x32 FDCT versions have mismatched coefficients";

            
                } else {

            
                  for (int j = 0; j < kNumCoeffs; ++j)

            
                    EXPECT_GE(6, abs(output_block[j] - output_ref_block[j]))

            
                        << "Error: 32x32 FDCT rd has mismatched coefficients";

            
                }

            
              }

            
            }


            TEST_P(Trans32x32Test, MemCheck) {

            
              ACMRandom rnd(ACMRandom::DeterministicSeed());

            
              const int count_test_block = 2000;


              DECLARE_ALIGNED(16, int16_t, input_extreme_block[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, tran_low_t, output_ref_block[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, tran_low_t, output_block[kNumCoeffs]);


              for (int i = 0; i < count_test_block; ++i) {

            
                // Initialize a test block with input range [-mask_, mask_].

            
                for (int j = 0; j < kNumCoeffs; ++j) {

            
                  input_extreme_block[j] = rnd.Rand8() & 1 ? mask_ : -mask_;

            
                }

            
                if (i == 0) {

            
                  for (int j = 0; j < kNumCoeffs; ++j) input_extreme_block[j] = mask_;

            
                } else if (i == 1) {

            
                  for (int j = 0; j < kNumCoeffs; ++j) input_extreme_block[j] = -mask_;

            
                }


                const int stride = 32;

            
                aom_fdct32x32_c(input_extreme_block, output_ref_block, stride);

            
                ASM_REGISTER_STATE_CHECK(

            
                    fwd_txfm_(input_extreme_block, output_block, stride));


                // The minimum quant value is 4.

            
                for (int j = 0; j < kNumCoeffs; ++j) {

            
                  if (version_ == 0) {

            
                    EXPECT_EQ(output_block[j], output_ref_block[j])

            
                        << "Error: 32x32 FDCT versions have mismatched coefficients";

            
                  } else {

            
                    EXPECT_GE(6, abs(output_block[j] - output_ref_block[j]))

            
                        << "Error: 32x32 FDCT rd has mismatched coefficients";

            
                  }

            
                  EXPECT_GE(4 * DCT_MAX_VALUE << (bit_depth_ - 8), abs(output_ref_block[j]))

            
                      << "Error: 32x32 FDCT C has coefficient larger than 4*DCT_MAX_VALUE";

            
                  EXPECT_GE(4 * DCT_MAX_VALUE << (bit_depth_ - 8), abs(output_block[j]))

            
                      << "Error: 32x32 FDCT has coefficient larger than "

            
                      << "4*DCT_MAX_VALUE";

            
                }

            
              }

            
            }


            TEST_P(Trans32x32Test, InverseAccuracy) {

            
              ACMRandom rnd(ACMRandom::DeterministicSeed());

            
              const int count_test_block = 1000;

            
              DECLARE_ALIGNED(16, int16_t, in[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, tran_low_t, coeff[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, uint8_t, dst[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, uint8_t, src[kNumCoeffs]);

            
            #if CONFIG_HIGHBITDEPTH

            
              DECLARE_ALIGNED(16, uint16_t, dst16[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, uint16_t, src16[kNumCoeffs]);

            
            #endif


              for (int i = 0; i < count_test_block; ++i) {

            
                double out_r[kNumCoeffs];


                // Initialize a test block with input range [-255, 255]

            
                for (int j = 0; j < kNumCoeffs; ++j) {

            
                  if (bit_depth_ == AOM_BITS_8) {

            
                    src[j] = rnd.Rand8();

            
                    dst[j] = rnd.Rand8();

            
                    in[j] = src[j] - dst[j];

            
            #if CONFIG_HIGHBITDEPTH

            
                  } else {

            
                    src16[j] = rnd.Rand16() & mask_;

            
                    dst16[j] = rnd.Rand16() & mask_;

            
                    in[j] = src16[j] - dst16[j];

            
            #endif

            
                  }

            
                }


                reference_32x32_dct_2d(in, out_r);

            
                for (int j = 0; j < kNumCoeffs; ++j)

            
                  coeff[j] = static_cast<tran_low_t>(round(out_r[j]));

            
                if (bit_depth_ == AOM_BITS_8) {

            
                  ASM_REGISTER_STATE_CHECK(inv_txfm_(coeff, dst, 32));

            
            #if CONFIG_HIGHBITDEPTH

            
                } else {

            
                  ASM_REGISTER_STATE_CHECK(inv_txfm_(coeff, CONVERT_TO_BYTEPTR(dst16), 32));

            
            #endif

            
                }

            
                for (int j = 0; j < kNumCoeffs; ++j) {

            
            #if CONFIG_HIGHBITDEPTH

            
                  const int diff =

            
                      bit_depth_ == AOM_BITS_8 ? dst[j] - src[j] : dst16[j] - src16[j];

            
            #else

            
                  const int diff = dst[j] - src[j];

            
            #endif

            
                  const int error = diff * diff;

            
                  EXPECT_GE(1, error) << "Error: 32x32 IDCT has error " << error

            
                                      << " at index " << j;

            
                }

            
              }

            
            }


            class PartialTrans32x32Test

            
                : public ::testing::TestWithParam<

            
                      std::tr1::tuple<FwdTxfmFunc, aom_bit_depth_t> > {

            
             public:

            
              virtual ~PartialTrans32x32Test() {}

            
              virtual void SetUp() {

            
                fwd_txfm_ = GET_PARAM(0);

            
                bit_depth_ = GET_PARAM(1);

            
              }


              virtual void TearDown() { libaom_test::ClearSystemState(); }


             protected:

            
              aom_bit_depth_t bit_depth_;

            
              FwdTxfmFunc fwd_txfm_;

            
            };


            TEST_P(PartialTrans32x32Test, Extremes) {

            
            #if CONFIG_HIGHBITDEPTH

            
              const int16_t maxval =

            
                  static_cast<int16_t>(clip_pixel_highbd(1 << 30, bit_depth_));

            
            #else

            
              const int16_t maxval = 255;

            
            #endif

            
              const int minval = -maxval;

            
              DECLARE_ALIGNED(16, int16_t, input[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, tran_low_t, output[kNumCoeffs]);


              for (int i = 0; i < kNumCoeffs; ++i) input[i] = maxval;

            
              output[0] = 0;

            
              ASM_REGISTER_STATE_CHECK(fwd_txfm_(input, output, 32));

            
              EXPECT_EQ((maxval * kNumCoeffs) >> 3, output[0]);


              for (int i = 0; i < kNumCoeffs; ++i) input[i] = minval;

            
              output[0] = 0;

            
              ASM_REGISTER_STATE_CHECK(fwd_txfm_(input, output, 32));

            
              EXPECT_EQ((minval * kNumCoeffs) >> 3, output[0]);

            
            }


            TEST_P(PartialTrans32x32Test, Random) {

            
            #if CONFIG_HIGHBITDEPTH

            
              const int16_t maxval =

            
                  static_cast<int16_t>(clip_pixel_highbd(1 << 30, bit_depth_));

            
            #else

            
              const int16_t maxval = 255;

            
            #endif

            
              DECLARE_ALIGNED(16, int16_t, input[kNumCoeffs]);

            
              DECLARE_ALIGNED(16, tran_low_t, output[kNumCoeffs]);

            
              ACMRandom rnd(ACMRandom::DeterministicSeed());


              int sum = 0;

            
              for (int i = 0; i < kNumCoeffs; ++i) {

            
                const int val = (i & 1) ? -rnd(maxval + 1) : rnd(maxval + 1);

            
                input[i] = val;

            
                sum += val;

            
              }

            
              output[0] = 0;

            
              ASM_REGISTER_STATE_CHECK(fwd_txfm_(input, output, 32));

            
              EXPECT_EQ(sum >> 3, output[0]);

            
            }


            using std::tr1::make_tuple;


            #if CONFIG_HIGHBITDEPTH

            
            INSTANTIATE_TEST_CASE_P(

            
                C, Trans32x32Test,

            
                ::testing::Values(make_tuple(&aom_fdct32x32_c, &aom_idct32x32_1024_add_c, 0,

            
                                             AOM_BITS_8),

            
                                  make_tuple(&aom_fdct32x32_rd_c, &aom_idct32x32_1024_add_c,

            
                                             1, AOM_BITS_8)));

            
            #else

            
            INSTANTIATE_TEST_CASE_P(

            
                C, Trans32x32Test,

            
                ::testing::Values(make_tuple(&aom_fdct32x32_c, &aom_idct32x32_1024_add_c, 0,

            
                                             AOM_BITS_8),

            
                                  make_tuple(&aom_fdct32x32_rd_c, &aom_idct32x32_1024_add_c,

            
                                             1, AOM_BITS_8)));

            
            #endif  // CONFIG_HIGHBITDEPTH


            #if HAVE_NEON && !CONFIG_HIGHBITDEPTH

            
            INSTANTIATE_TEST_CASE_P(

            
                NEON, Trans32x32Test,

            
                ::testing::Values(make_tuple(&aom_fdct32x32_c, &aom_idct32x32_1024_add_neon,

            
                                             0, AOM_BITS_8),

            
                                  make_tuple(&aom_fdct32x32_rd_c,

            
                                             &aom_idct32x32_1024_add_neon, 1, AOM_BITS_8)));

            
            #endif  // HAVE_NEON && !CONFIG_HIGHBITDEPTH


            #if HAVE_SSE2 && !CONFIG_HIGHBITDEPTH

            
            INSTANTIATE_TEST_CASE_P(

            
                SSE2, Trans32x32Test,

            
                ::testing::Values(make_tuple(&aom_fdct32x32_sse2,

            
                                             &aom_idct32x32_1024_add_sse2, 0, AOM_BITS_8),

            
                                  make_tuple(&aom_fdct32x32_rd_sse2,

            
                                             &aom_idct32x32_1024_add_sse2, 1, AOM_BITS_8)));

            
            #endif  // HAVE_SSE2 && !CONFIG_HIGHBITDEPTH


            #if HAVE_SSE2 && CONFIG_HIGHBITDEPTH

            
            INSTANTIATE_TEST_CASE_P(

            
                SSE2, Trans32x32Test,

            
                ::testing::Values(make_tuple(&aom_fdct32x32_sse2, &aom_idct32x32_1024_add_c,

            
                                             0, AOM_BITS_8),

            
                                  make_tuple(&aom_fdct32x32_rd_sse2,

            
                                             &aom_idct32x32_1024_add_c, 1, AOM_BITS_8)));

            
            #endif  // HAVE_SSE2 && CONFIG_HIGHBITDEPTH


            #if HAVE_AVX2 && !CONFIG_HIGHBITDEPTH

            
            INSTANTIATE_TEST_CASE_P(

            
                AVX2, Trans32x32Test,

            
                ::testing::Values(make_tuple(&aom_fdct32x32_avx2,

            
                                             &aom_idct32x32_1024_add_sse2, 0, AOM_BITS_8),

            
                                  make_tuple(&aom_fdct32x32_rd_avx2,

            
                                             &aom_idct32x32_1024_add_sse2, 1, AOM_BITS_8)));

            
            #endif  // HAVE_AVX2 && !CONFIG_HIGHBITDEPTH


            #if HAVE_AVX2 && CONFIG_HIGHBITDEPTH

            
            INSTANTIATE_TEST_CASE_P(

            
                AVX2, Trans32x32Test,

            
                ::testing::Values(make_tuple(&aom_fdct32x32_avx2,

            
                                             &aom_idct32x32_1024_add_sse2, 0, AOM_BITS_8),

            
                                  make_tuple(&aom_fdct32x32_rd_avx2,

            
                                             &aom_idct32x32_1024_add_sse2, 1, AOM_BITS_8)));

            
            #endif  // HAVE_AVX2 && CONFIG_HIGHBITDEPTH


            #if HAVE_MSA && !CONFIG_HIGHBITDEPTH

            
            INSTANTIATE_TEST_CASE_P(

            
                MSA, Trans32x32Test,

            
                ::testing::Values(make_tuple(&aom_fdct32x32_msa,

            
                                             &aom_idct32x32_1024_add_msa, 0, AOM_BITS_8),

            
                                  make_tuple(&aom_fdct32x32_rd_msa,

            
                                             &aom_idct32x32_1024_add_msa, 1, AOM_BITS_8)));

            
            #endif  // HAVE_MSA && !CONFIG_HIGHBITDEPTH

            
            }  // namespace
	/*
	* Copyright (c) 2016, Alliance for Open Media. All rights reserved
	*
	* This source code is subject to the terms of the BSD 2 Clause License and
	* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
	* was not distributed with this source code in the LICENSE file, you can
	* obtain it at www.aomedia.org/license/software. If the Alliance for Open
	* Media Patent License 1.0 was not distributed with this source code in the
	* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
	*/

	#include <math.h>
	#include <stdlib.h>
	#include <string.h>

	#include "third_party/googletest/src/googletest/include/gtest/gtest.h"

	#include "./av1_rtcd.h"
	#include "./aom_config.h"
	#include "./aom_dsp_rtcd.h"
	#include "test/acm_random.h"
	#include "test/clear_system_state.h"
	#include "test/register_state_check.h"
	#include "test/util.h"
	#include "av1/common/entropy.h"
	#include "aom/aom_codec.h"
	#include "aom/aom_integer.h"
	#include "aom_ports/mem.h"
	#include "aom_ports/msvc.h" // for round()

	using libaom_test::ACMRandom;

	namespace {

	const int kNumCoeffs = 1024;
	const double kPi = 3.141592653589793238462643383279502884;
	void reference_32x32_dct_1d(const double in[32], double out[32]) {
	const double kInvSqrt2 = 0.707106781186547524400844362104;
	for (int k = 0; k < 32; k++) {
	out[k] = 0.0;
	for (int n = 0; n < 32; n++)
	out[k] += in[n] * cos(kPi * (2 * n + 1) * k / 64.0);
	if (k == 0) out[k] = out[k] * kInvSqrt2;
	}
	}

	void reference_32x32_dct_2d(const int16_t input[kNumCoeffs],
	double output[kNumCoeffs]) {
	// First transform columns
	for (int i = 0; i < 32; ++i) {
	double temp_in[32], temp_out[32];
	for (int j = 0; j < 32; ++j) temp_in[j] = input[j * 32 + i];
	reference_32x32_dct_1d(temp_in, temp_out);
	for (int j = 0; j < 32; ++j) output[j * 32 + i] = temp_out[j];
	}
	// Then transform rows
	for (int i = 0; i < 32; ++i) {
	double temp_in[32], temp_out[32];
	for (int j = 0; j < 32; ++j) temp_in[j] = output[j + i * 32];
	reference_32x32_dct_1d(temp_in, temp_out);
	// Scale by some magic number
	for (int j = 0; j < 32; ++j) output[j + i * 32] = temp_out[j] / 4;
	}
	}

	typedef void (FwdTxfmFunc)(const int16_t in, tran_low_t *out, int stride);
	typedef void (InvTxfmFunc)(const tran_low_t in, uint8_t *out, int stride);

	typedef std::tr1::tuple<FwdTxfmFunc, InvTxfmFunc, int, aom_bit_depth_t>
	Trans32x32Param;

	class Trans32x32Test : public ::testing::TestWithParam<Trans32x32Param> {
	public:
	virtual ~Trans32x32Test() {}
	virtual void SetUp() {
	fwd_txfm_ = GET_PARAM(0);
	inv_txfm_ = GET_PARAM(1);
	version_ = GET_PARAM(2); // 0: high precision forward transform
	// 1: low precision version for rd loop
	bit_depth_ = GET_PARAM(3);
	mask_ = (1 << bit_depth_) - 1;
	}

	virtual void TearDown() { libaom_test::ClearSystemState(); }

	protected:
	int version_;
	aom_bit_depth_t bit_depth_;
	int mask_;
	FwdTxfmFunc fwd_txfm_;
	InvTxfmFunc inv_txfm_;
	};

	TEST_P(Trans32x32Test, AccuracyCheck) {
	ACMRandom rnd(ACMRandom::DeterministicSeed());
	uint32_t max_error = 0;
	int64_t total_error = 0;
	const int count_test_block = 10000;
	DECLARE_ALIGNED(16, int16_t, test_input_block[kNumCoeffs]);
	DECLARE_ALIGNED(16, tran_low_t, test_temp_block[kNumCoeffs]);
	DECLARE_ALIGNED(16, uint8_t, dst[kNumCoeffs]);
	DECLARE_ALIGNED(16, uint8_t, src[kNumCoeffs]);
	#if CONFIG_HIGHBITDEPTH
	DECLARE_ALIGNED(16, uint16_t, dst16[kNumCoeffs]);
	DECLARE_ALIGNED(16, uint16_t, src16[kNumCoeffs]);
	#endif

	for (int i = 0; i < count_test_block; ++i) {
	// Initialize a test block with input range [-mask_, mask_].
	for (int j = 0; j < kNumCoeffs; ++j) {
	if (bit_depth_ == AOM_BITS_8) {
	src[j] = rnd.Rand8();
	dst[j] = rnd.Rand8();
	test_input_block[j] = src[j] - dst[j];
	#if CONFIG_HIGHBITDEPTH
	} else {
	src16[j] = rnd.Rand16() & mask_;
	dst16[j] = rnd.Rand16() & mask_;
	test_input_block[j] = src16[j] - dst16[j];
	#endif
	}
	}

	ASM_REGISTER_STATE_CHECK(fwd_txfm_(test_input_block, test_temp_block, 32));
	if (bit_depth_ == AOM_BITS_8) {
	ASM_REGISTER_STATE_CHECK(inv_txfm_(test_temp_block, dst, 32));
	#if CONFIG_HIGHBITDEPTH
	} else {
	ASM_REGISTER_STATE_CHECK(
	inv_txfm_(test_temp_block, CONVERT_TO_BYTEPTR(dst16), 32));
	#endif
	}

	for (int j = 0; j < kNumCoeffs; ++j) {
	#if CONFIG_HIGHBITDEPTH
	const int32_t diff =
	bit_depth_ == AOM_BITS_8 ? dst[j] - src[j] : dst16[j] - src16[j];
	#else
	const int32_t diff = dst[j] - src[j];
	#endif
	const uint32_t error = diff * diff;
	if (max_error < error) max_error = error;
	total_error += error;
	}
	}

	if (version_ == 1) {
	max_error /= 2;
	total_error /= 45;
	}

	EXPECT_GE(1u << 2 * (bit_depth_ - 8), max_error)
	<< "Error: 32x32 FDCT/IDCT has an individual round-trip error > 1";

	EXPECT_GE(count_test_block << 2 * (bit_depth_ - 8), total_error)
	<< "Error: 32x32 FDCT/IDCT has average round-trip error > 1 per block";
	}

	TEST_P(Trans32x32Test, CoeffCheck) {
	ACMRandom rnd(ACMRandom::DeterministicSeed());
	const int count_test_block = 1000;

	DECLARE_ALIGNED(16, int16_t, input_block[kNumCoeffs]);
	DECLARE_ALIGNED(16, tran_low_t, output_ref_block[kNumCoeffs]);
	DECLARE_ALIGNED(16, tran_low_t, output_block[kNumCoeffs]);

	for (int i = 0; i < count_test_block; ++i) {
	for (int j = 0; j < kNumCoeffs; ++j)
	input_block[j] = (rnd.Rand16() & mask_) - (rnd.Rand16() & mask_);

	const int stride = 32;
	aom_fdct32x32_c(input_block, output_ref_block, stride);
	ASM_REGISTER_STATE_CHECK(fwd_txfm_(input_block, output_block, stride));

	if (version_ == 0) {
	for (int j = 0; j < kNumCoeffs; ++j)
	EXPECT_EQ(output_block[j], output_ref_block[j])
	<< "Error: 32x32 FDCT versions have mismatched coefficients";
	} else {
	for (int j = 0; j < kNumCoeffs; ++j)
	EXPECT_GE(6, abs(output_block[j] - output_ref_block[j]))
	<< "Error: 32x32 FDCT rd has mismatched coefficients";
	}
	}
	}

	TEST_P(Trans32x32Test, MemCheck) {
	ACMRandom rnd(ACMRandom::DeterministicSeed());
	const int count_test_block = 2000;

	DECLARE_ALIGNED(16, int16_t, input_extreme_block[kNumCoeffs]);
	DECLARE_ALIGNED(16, tran_low_t, output_ref_block[kNumCoeffs]);
	DECLARE_ALIGNED(16, tran_low_t, output_block[kNumCoeffs]);

	for (int i = 0; i < count_test_block; ++i) {
	// Initialize a test block with input range [-mask_, mask_].
	for (int j = 0; j < kNumCoeffs; ++j) {
	input_extreme_block[j] = rnd.Rand8() & 1 ? mask_ : -mask_;
	}
	if (i == 0) {
	for (int j = 0; j < kNumCoeffs; ++j) input_extreme_block[j] = mask_;
	} else if (i == 1) {
	for (int j = 0; j < kNumCoeffs; ++j) input_extreme_block[j] = -mask_;
	}

	const int stride = 32;
	aom_fdct32x32_c(input_extreme_block, output_ref_block, stride);
	ASM_REGISTER_STATE_CHECK(
	fwd_txfm_(input_extreme_block, output_block, stride));

	// The minimum quant value is 4.
	for (int j = 0; j < kNumCoeffs; ++j) {
	if (version_ == 0) {
	EXPECT_EQ(output_block[j], output_ref_block[j])
	<< "Error: 32x32 FDCT versions have mismatched coefficients";
	} else {
	EXPECT_GE(6, abs(output_block[j] - output_ref_block[j]))
	<< "Error: 32x32 FDCT rd has mismatched coefficients";
	}
	EXPECT_GE(4 * DCT_MAX_VALUE << (bit_depth_ - 8), abs(output_ref_block[j]))
	<< "Error: 32x32 FDCT C has coefficient larger than 4*DCT_MAX_VALUE";
	EXPECT_GE(4 * DCT_MAX_VALUE << (bit_depth_ - 8), abs(output_block[j]))
	<< "Error: 32x32 FDCT has coefficient larger than "
	<< "4*DCT_MAX_VALUE";
	}
	}
	}

	TEST_P(Trans32x32Test, InverseAccuracy) {
	ACMRandom rnd(ACMRandom::DeterministicSeed());
	const int count_test_block = 1000;
	DECLARE_ALIGNED(16, int16_t, in[kNumCoeffs]);
	DECLARE_ALIGNED(16, tran_low_t, coeff[kNumCoeffs]);
	DECLARE_ALIGNED(16, uint8_t, dst[kNumCoeffs]);
	DECLARE_ALIGNED(16, uint8_t, src[kNumCoeffs]);
	#if CONFIG_HIGHBITDEPTH
	DECLARE_ALIGNED(16, uint16_t, dst16[kNumCoeffs]);
	DECLARE_ALIGNED(16, uint16_t, src16[kNumCoeffs]);
	#endif

	for (int i = 0; i < count_test_block; ++i) {
	double out_r[kNumCoeffs];

	// Initialize a test block with input range [-255, 255]
	for (int j = 0; j < kNumCoeffs; ++j) {
	if (bit_depth_ == AOM_BITS_8) {
	src[j] = rnd.Rand8();
	dst[j] = rnd.Rand8();
	in[j] = src[j] - dst[j];
	#if CONFIG_HIGHBITDEPTH
	} else {
	src16[j] = rnd.Rand16() & mask_;
	dst16[j] = rnd.Rand16() & mask_;
	in[j] = src16[j] - dst16[j];
	#endif
	}
	}

	reference_32x32_dct_2d(in, out_r);
	for (int j = 0; j < kNumCoeffs; ++j)
	coeff[j] = static_cast<tran_low_t>(round(out_r[j]));
	if (bit_depth_ == AOM_BITS_8) {
	ASM_REGISTER_STATE_CHECK(inv_txfm_(coeff, dst, 32));
	#if CONFIG_HIGHBITDEPTH
	} else {
	ASM_REGISTER_STATE_CHECK(inv_txfm_(coeff, CONVERT_TO_BYTEPTR(dst16), 32));
	#endif
	}
	for (int j = 0; j < kNumCoeffs; ++j) {
	#if CONFIG_HIGHBITDEPTH
	const int diff =
	bit_depth_ == AOM_BITS_8 ? dst[j] - src[j] : dst16[j] - src16[j];
	#else
	const int diff = dst[j] - src[j];
	#endif
	const int error = diff * diff;
	EXPECT_GE(1, error) << "Error: 32x32 IDCT has error " << error
	<< " at index " << j;
	}
	}
	}

	class PartialTrans32x32Test
	: public ::testing::TestWithParam<
	std::tr1::tuple<FwdTxfmFunc, aom_bit_depth_t> > {
	public:
	virtual ~PartialTrans32x32Test() {}
	virtual void SetUp() {
	fwd_txfm_ = GET_PARAM(0);
	bit_depth_ = GET_PARAM(1);
	}

	virtual void TearDown() { libaom_test::ClearSystemState(); }

	protected:
	aom_bit_depth_t bit_depth_;
	FwdTxfmFunc fwd_txfm_;
	};

	TEST_P(PartialTrans32x32Test, Extremes) {
	#if CONFIG_HIGHBITDEPTH
	const int16_t maxval =
	static_cast<int16_t>(clip_pixel_highbd(1 << 30, bit_depth_));
	#else
	const int16_t maxval = 255;
	#endif
	const int minval = -maxval;
	DECLARE_ALIGNED(16, int16_t, input[kNumCoeffs]);
	DECLARE_ALIGNED(16, tran_low_t, output[kNumCoeffs]);

	for (int i = 0; i < kNumCoeffs; ++i) input[i] = maxval;
	output[0] = 0;
	ASM_REGISTER_STATE_CHECK(fwd_txfm_(input, output, 32));
	EXPECT_EQ((maxval * kNumCoeffs) >> 3, output[0]);

	for (int i = 0; i < kNumCoeffs; ++i) input[i] = minval;
	output[0] = 0;
	ASM_REGISTER_STATE_CHECK(fwd_txfm_(input, output, 32));
	EXPECT_EQ((minval * kNumCoeffs) >> 3, output[0]);
	}

	TEST_P(PartialTrans32x32Test, Random) {
	#if CONFIG_HIGHBITDEPTH
	const int16_t maxval =
	static_cast<int16_t>(clip_pixel_highbd(1 << 30, bit_depth_));
	#else
	const int16_t maxval = 255;
	#endif
	DECLARE_ALIGNED(16, int16_t, input[kNumCoeffs]);
	DECLARE_ALIGNED(16, tran_low_t, output[kNumCoeffs]);
	ACMRandom rnd(ACMRandom::DeterministicSeed());

	int sum = 0;
	for (int i = 0; i < kNumCoeffs; ++i) {
	const int val = (i & 1) ? -rnd(maxval + 1) : rnd(maxval + 1);
	input[i] = val;
	sum += val;
	}
	output[0] = 0;
	ASM_REGISTER_STATE_CHECK(fwd_txfm_(input, output, 32));
	EXPECT_EQ(sum >> 3, output[0]);
	}

	using std::tr1::make_tuple;

	#if CONFIG_HIGHBITDEPTH
	INSTANTIATE_TEST_CASE_P(
	C, Trans32x32Test,
	::testing::Values(make_tuple(&aom_fdct32x32_c, &aom_idct32x32_1024_add_c, 0,
	AOM_BITS_8),
	make_tuple(&aom_fdct32x32_rd_c, &aom_idct32x32_1024_add_c,
	1, AOM_BITS_8)));
	#else
	INSTANTIATE_TEST_CASE_P(
	C, Trans32x32Test,
	::testing::Values(make_tuple(&aom_fdct32x32_c, &aom_idct32x32_1024_add_c, 0,
	AOM_BITS_8),
	make_tuple(&aom_fdct32x32_rd_c, &aom_idct32x32_1024_add_c,
	1, AOM_BITS_8)));
	#endif // CONFIG_HIGHBITDEPTH

	#if HAVE_NEON && !CONFIG_HIGHBITDEPTH
	INSTANTIATE_TEST_CASE_P(
	NEON, Trans32x32Test,
	::testing::Values(make_tuple(&aom_fdct32x32_c, &aom_idct32x32_1024_add_neon,
	0, AOM_BITS_8),
	make_tuple(&aom_fdct32x32_rd_c,
	&aom_idct32x32_1024_add_neon, 1, AOM_BITS_8)));
	#endif // HAVE_NEON && !CONFIG_HIGHBITDEPTH

	#if HAVE_SSE2 && !CONFIG_HIGHBITDEPTH
	INSTANTIATE_TEST_CASE_P(
	SSE2, Trans32x32Test,
	::testing::Values(make_tuple(&aom_fdct32x32_sse2,
	&aom_idct32x32_1024_add_sse2, 0, AOM_BITS_8),
	make_tuple(&aom_fdct32x32_rd_sse2,
	&aom_idct32x32_1024_add_sse2, 1, AOM_BITS_8)));
	#endif // HAVE_SSE2 && !CONFIG_HIGHBITDEPTH

	#if HAVE_SSE2 && CONFIG_HIGHBITDEPTH
	INSTANTIATE_TEST_CASE_P(
	SSE2, Trans32x32Test,
	::testing::Values(make_tuple(&aom_fdct32x32_sse2, &aom_idct32x32_1024_add_c,
	0, AOM_BITS_8),
	make_tuple(&aom_fdct32x32_rd_sse2,
	&aom_idct32x32_1024_add_c, 1, AOM_BITS_8)));
	#endif // HAVE_SSE2 && CONFIG_HIGHBITDEPTH

	#if HAVE_AVX2 && !CONFIG_HIGHBITDEPTH
	INSTANTIATE_TEST_CASE_P(
	AVX2, Trans32x32Test,
	::testing::Values(make_tuple(&aom_fdct32x32_avx2,
	&aom_idct32x32_1024_add_sse2, 0, AOM_BITS_8),
	make_tuple(&aom_fdct32x32_rd_avx2,
	&aom_idct32x32_1024_add_sse2, 1, AOM_BITS_8)));
	#endif // HAVE_AVX2 && !CONFIG_HIGHBITDEPTH

	#if HAVE_AVX2 && CONFIG_HIGHBITDEPTH
	INSTANTIATE_TEST_CASE_P(
	AVX2, Trans32x32Test,
	::testing::Values(make_tuple(&aom_fdct32x32_avx2,
	&aom_idct32x32_1024_add_sse2, 0, AOM_BITS_8),
	make_tuple(&aom_fdct32x32_rd_avx2,
	&aom_idct32x32_1024_add_sse2, 1, AOM_BITS_8)));
	#endif // HAVE_AVX2 && CONFIG_HIGHBITDEPTH

	#if HAVE_MSA && !CONFIG_HIGHBITDEPTH
	INSTANTIATE_TEST_CASE_P(
	MSA, Trans32x32Test,
	::testing::Values(make_tuple(&aom_fdct32x32_msa,
	&aom_idct32x32_1024_add_msa, 0, AOM_BITS_8),
	make_tuple(&aom_fdct32x32_rd_msa,
	&aom_idct32x32_1024_add_msa, 1, AOM_BITS_8)));
	#endif // HAVE_MSA && !CONFIG_HIGHBITDEPTH
	} // namespace