Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/test/dct32x32_test.cc

Index: third_party/libvpx/source/libvpx/test/dct32x32_test.cc
diff --git a/third_party/libvpx/source/libvpx/test/dct32x32_test.cc b/third_party/libvpx/source/libvpx/test/dct32x32_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a96266188561edcea05a761377b4b486584d0035
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/test/dct32x32_test.cc
@@ -0,0 +1,391 @@
+/*
+ *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "third_party/googletest/src/include/gtest/gtest.h"
+#include "test/acm_random.h"
+#include "test/clear_system_state.h"
+#include "test/register_state_check.h"
+#include "test/util.h"
+
+#include "./vpx_config.h"
+#include "./vp9_rtcd.h"
+#include "vp9/common/vp9_entropy.h"
+#include "vpx/vpx_codec.h"
+#include "vpx/vpx_integer.h"
+
+using libvpx_test::ACMRandom;
+
+namespace {
+#ifdef _MSC_VER
+static int round(double x) {
+  if (x < 0)
+    return static_cast<int>(ceil(x - 0.5));
+  else
+    return static_cast<int>(floor(x + 0.5));
+}
+#endif
+
+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, vpx_bit_depth_t>
+    Trans32x32Param;
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void idct32x32_8(const tran_low_t *in, uint8_t *out, int stride) {
+  vp9_highbd_idct32x32_1024_add_c(in, out, stride, 8);
+}
+
+void idct32x32_10(const tran_low_t *in, uint8_t *out, int stride) {
+  vp9_highbd_idct32x32_1024_add_c(in, out, stride, 10);
+}
+
+void idct32x32_12(const tran_low_t *in, uint8_t *out, int stride) {
+  vp9_highbd_idct32x32_1024_add_c(in, out, stride, 12);
+}
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+
+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() { libvpx_test::ClearSystemState(); }
+
+ protected:
+  int version_;
+  vpx_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_VP9_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_ == VPX_BITS_8) {
+        src[j] = rnd.Rand8();
+        dst[j] = rnd.Rand8();
+        test_input_block[j] = src[j] - dst[j];
+#if CONFIG_VP9_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_ == VPX_BITS_8) {
+      ASM_REGISTER_STATE_CHECK(inv_txfm_(test_temp_block, dst, 32));
+#if CONFIG_VP9_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_VP9_HIGHBITDEPTH
+      const uint32_t diff =
+          bit_depth_ == VPX_BITS_8 ? dst[j] - src[j] : dst16[j] - src16[j];
+#else
+      const uint32_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;
+    vp9_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;
+    vp9_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_VP9_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_ == VPX_BITS_8) {
+        src[j] = rnd.Rand8();
+        dst[j] = rnd.Rand8();
+        in[j] = src[j] - dst[j];
+#if CONFIG_VP9_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_ == VPX_BITS_8) {
+      ASM_REGISTER_STATE_CHECK(inv_txfm_(coeff, dst, 32));
+#if CONFIG_VP9_HIGHBITDEPTH
+    } else {
+      ASM_REGISTER_STATE_CHECK(inv_txfm_(coeff, CONVERT_TO_BYTEPTR(dst16), 32));
+#endif
+    }
+    for (int j = 0; j < kNumCoeffs; ++j) {
+#if CONFIG_VP9_HIGHBITDEPTH
+      const int diff =
+          bit_depth_ == VPX_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;
+    }
+  }
+}
+
+using std::tr1::make_tuple;
+
+#if CONFIG_VP9_HIGHBITDEPTH
+INSTANTIATE_TEST_CASE_P(
+    C, Trans32x32Test,
+    ::testing::Values(
+        make_tuple(&vp9_highbd_fdct32x32_c,
+                   &idct32x32_10, 0, VPX_BITS_10),
+        make_tuple(&vp9_highbd_fdct32x32_rd_c,
+                   &idct32x32_10, 1, VPX_BITS_10),
+        make_tuple(&vp9_highbd_fdct32x32_c,
+                   &idct32x32_12, 0, VPX_BITS_12),
+        make_tuple(&vp9_highbd_fdct32x32_rd_c,
+                   &idct32x32_12, 1, VPX_BITS_12),
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_c, 0, VPX_BITS_8),
+        make_tuple(&vp9_fdct32x32_rd_c,
+                   &vp9_idct32x32_1024_add_c, 1, VPX_BITS_8)));
+#else
+INSTANTIATE_TEST_CASE_P(
+    C, Trans32x32Test,
+    ::testing::Values(
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_c, 0, VPX_BITS_8),
+        make_tuple(&vp9_fdct32x32_rd_c,
+                   &vp9_idct32x32_1024_add_c, 1, VPX_BITS_8)));
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+
+#if HAVE_NEON_ASM && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+INSTANTIATE_TEST_CASE_P(
+    NEON, Trans32x32Test,
+    ::testing::Values(
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_neon, 0, VPX_BITS_8),
+        make_tuple(&vp9_fdct32x32_rd_c,
+                   &vp9_idct32x32_1024_add_neon, 1, VPX_BITS_8)));
+#endif  // HAVE_NEON_ASM && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+
+#if HAVE_SSE2 && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+INSTANTIATE_TEST_CASE_P(
+    SSE2, Trans32x32Test,
+    ::testing::Values(
+        make_tuple(&vp9_fdct32x32_sse2,
+                   &vp9_idct32x32_1024_add_sse2, 0, VPX_BITS_8),
+        make_tuple(&vp9_fdct32x32_rd_sse2,
+                   &vp9_idct32x32_1024_add_sse2, 1, VPX_BITS_8)));
+#endif  // HAVE_SSE2 && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+
+#if HAVE_SSE2 && CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+INSTANTIATE_TEST_CASE_P(
+    SSE2, Trans32x32Test,
+    ::testing::Values(
+        make_tuple(&vp9_highbd_fdct32x32_sse2, &idct32x32_10, 0, VPX_BITS_10),
+        make_tuple(&vp9_highbd_fdct32x32_rd_sse2, &idct32x32_10, 1,
+                   VPX_BITS_10),
+        make_tuple(&vp9_highbd_fdct32x32_sse2, &idct32x32_12, 0, VPX_BITS_12),
+        make_tuple(&vp9_highbd_fdct32x32_rd_sse2, &idct32x32_12, 1,
+                   VPX_BITS_12),
+        make_tuple(&vp9_fdct32x32_sse2, &vp9_idct32x32_1024_add_c, 0,
+                   VPX_BITS_8),
+        make_tuple(&vp9_fdct32x32_rd_sse2, &vp9_idct32x32_1024_add_c, 1,
+                   VPX_BITS_8)));
+#endif  // HAVE_SSE2 && CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+
+#if HAVE_AVX2 && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+INSTANTIATE_TEST_CASE_P(
+    AVX2, Trans32x32Test,
+    ::testing::Values(
+        make_tuple(&vp9_fdct32x32_avx2,
+                   &vp9_idct32x32_1024_add_sse2, 0, VPX_BITS_8),
+        make_tuple(&vp9_fdct32x32_rd_avx2,
+                   &vp9_idct32x32_1024_add_sse2, 1, VPX_BITS_8)));
+#endif  // HAVE_AVX2 && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+
+#if HAVE_MSA && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+INSTANTIATE_TEST_CASE_P(
+    MSA, Trans32x32Test,
+    ::testing::Values(
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_msa, 0, VPX_BITS_8)));
+#endif  // HAVE_MSA && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+}  // namespace