Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/test/partial_idct_test.cc

Index: third_party/libvpx/source/libvpx/test/partial_idct_test.cc
diff --git a/third_party/libvpx/source/libvpx/test/partial_idct_test.cc b/third_party/libvpx/source/libvpx/test/partial_idct_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..3237f37dae580deb12003bc305b46043af5f6900
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/test/partial_idct_test.cc
@@ -0,0 +1,330 @@
+/*
+ *  Copyright (c) 2013 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 "./vp9_rtcd.h"
+#include "vp9/common/vp9_blockd.h"
+#include "vp9/common/vp9_scan.h"
+#include "vpx/vpx_integer.h"
+
+using libvpx_test::ACMRandom;
+
+namespace {
+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,
+                        InvTxfmFunc,
+                        TX_SIZE, int> PartialInvTxfmParam;
+const int kMaxNumCoeffs = 1024;
+class PartialIDctTest : public ::testing::TestWithParam<PartialInvTxfmParam> {
+ public:
+  virtual ~PartialIDctTest() {}
+  virtual void SetUp() {
+    ftxfm_ = GET_PARAM(0);
+    full_itxfm_ = GET_PARAM(1);
+    partial_itxfm_ = GET_PARAM(2);
+    tx_size_  = GET_PARAM(3);
+    last_nonzero_ = GET_PARAM(4);
+  }
+
+  virtual void TearDown() { libvpx_test::ClearSystemState(); }
+
+ protected:
+  int last_nonzero_;
+  TX_SIZE tx_size_;
+  FwdTxfmFunc ftxfm_;
+  InvTxfmFunc full_itxfm_;
+  InvTxfmFunc partial_itxfm_;
+};
+
+TEST_P(PartialIDctTest, RunQuantCheck) {
+  ACMRandom rnd(ACMRandom::DeterministicSeed());
+  int size;
+  switch (tx_size_) {
+    case TX_4X4:
+      size = 4;
+      break;
+    case TX_8X8:
+      size = 8;
+      break;
+    case TX_16X16:
+      size = 16;
+      break;
+    case TX_32X32:
+      size = 32;
+      break;
+    default:
+      FAIL() << "Wrong Size!";
+      break;
+  }
+  DECLARE_ALIGNED(16, tran_low_t, test_coef_block1[kMaxNumCoeffs]);
+  DECLARE_ALIGNED(16, tran_low_t, test_coef_block2[kMaxNumCoeffs]);
+  DECLARE_ALIGNED(16, uint8_t, dst1[kMaxNumCoeffs]);
+  DECLARE_ALIGNED(16, uint8_t, dst2[kMaxNumCoeffs]);
+
+  const int count_test_block = 1000;
+  const int block_size = size * size;
+
+  DECLARE_ALIGNED(16, int16_t, input_extreme_block[kMaxNumCoeffs]);
+  DECLARE_ALIGNED(16, tran_low_t, output_ref_block[kMaxNumCoeffs]);
+
+  int max_error = 0;
+  for (int i = 0; i < count_test_block; ++i) {
+    // clear out destination buffer
+    memset(dst1, 0, sizeof(*dst1) * block_size);
+    memset(dst2, 0, sizeof(*dst2) * block_size);
+    memset(test_coef_block1, 0, sizeof(*test_coef_block1) * block_size);
+    memset(test_coef_block2, 0, sizeof(*test_coef_block2) * block_size);
+
+    ACMRandom rnd(ACMRandom::DeterministicSeed());
+
+    for (int i = 0; i < count_test_block; ++i) {
+      // Initialize a test block with input range [-255, 255].
+      if (i == 0) {
+        for (int j = 0; j < block_size; ++j)
+          input_extreme_block[j] = 255;
+      } else if (i == 1) {
+        for (int j = 0; j < block_size; ++j)
+          input_extreme_block[j] = -255;
+      } else {
+        for (int j = 0; j < block_size; ++j) {
+          input_extreme_block[j] = rnd.Rand8() % 2 ? 255 : -255;
+        }
+      }
+
+      ftxfm_(input_extreme_block, output_ref_block, size);
+
+      // quantization with maximum allowed step sizes
+      test_coef_block1[0] = (output_ref_block[0] / 1336) * 1336;
+      for (int j = 1; j < last_nonzero_; ++j)
+        test_coef_block1[vp9_default_scan_orders[tx_size_].scan[j]]
+                         = (output_ref_block[j] / 1828) * 1828;
+    }
+
+    ASM_REGISTER_STATE_CHECK(full_itxfm_(test_coef_block1, dst1, size));
+    ASM_REGISTER_STATE_CHECK(partial_itxfm_(test_coef_block1, dst2, size));
+
+    for (int j = 0; j < block_size; ++j) {
+      const int diff = dst1[j] - dst2[j];
+      const int error = diff * diff;
+      if (max_error < error)
+        max_error = error;
+    }
+  }
+
+  EXPECT_EQ(0, max_error)
+      << "Error: partial inverse transform produces different results";
+}
+
+TEST_P(PartialIDctTest, ResultsMatch) {
+  ACMRandom rnd(ACMRandom::DeterministicSeed());
+  int size;
+  switch (tx_size_) {
+    case TX_4X4:
+      size = 4;
+      break;
+    case TX_8X8:
+      size = 8;
+      break;
+    case TX_16X16:
+      size = 16;
+      break;
+    case TX_32X32:
+      size = 32;
+      break;
+    default:
+      FAIL() << "Wrong Size!";
+      break;
+  }
+  DECLARE_ALIGNED(16, tran_low_t, test_coef_block1[kMaxNumCoeffs]);
+  DECLARE_ALIGNED(16, tran_low_t, test_coef_block2[kMaxNumCoeffs]);
+  DECLARE_ALIGNED(16, uint8_t, dst1[kMaxNumCoeffs]);
+  DECLARE_ALIGNED(16, uint8_t, dst2[kMaxNumCoeffs]);
+  const int count_test_block = 1000;
+  const int max_coeff = 32766 / 4;
+  const int block_size = size * size;
+  int max_error = 0;
+  for (int i = 0; i < count_test_block; ++i) {
+    // clear out destination buffer
+    memset(dst1, 0, sizeof(*dst1) * block_size);
+    memset(dst2, 0, sizeof(*dst2) * block_size);
+    memset(test_coef_block1, 0, sizeof(*test_coef_block1) * block_size);
+    memset(test_coef_block2, 0, sizeof(*test_coef_block2) * block_size);
+    int max_energy_leftover = max_coeff * max_coeff;
+    for (int j = 0; j < last_nonzero_; ++j) {
+      int16_t coef = static_cast<int16_t>(sqrt(1.0 * max_energy_leftover) *
+                                          (rnd.Rand16() - 32768) / 65536);
+      max_energy_leftover -= coef * coef;
+      if (max_energy_leftover < 0) {
+        max_energy_leftover = 0;
+        coef = 0;
+      }
+      test_coef_block1[vp9_default_scan_orders[tx_size_].scan[j]] = coef;
+    }
+
+    memcpy(test_coef_block2, test_coef_block1,
+           sizeof(*test_coef_block2) * block_size);
+
+    ASM_REGISTER_STATE_CHECK(full_itxfm_(test_coef_block1, dst1, size));
+    ASM_REGISTER_STATE_CHECK(partial_itxfm_(test_coef_block2, dst2, size));
+
+    for (int j = 0; j < block_size; ++j) {
+      const int diff = dst1[j] - dst2[j];
+      const int error = diff * diff;
+      if (max_error < error)
+        max_error = error;
+    }
+  }
+
+  EXPECT_EQ(0, max_error)
+      << "Error: partial inverse transform produces different results";
+}
+using std::tr1::make_tuple;
+
+INSTANTIATE_TEST_CASE_P(
+    C, PartialIDctTest,
+    ::testing::Values(
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_c,
+                   &vp9_idct32x32_34_add_c,
+                   TX_32X32, 34),
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_c,
+                   &vp9_idct32x32_1_add_c,
+                   TX_32X32, 1),
+        make_tuple(&vp9_fdct16x16_c,
+                   &vp9_idct16x16_256_add_c,
+                   &vp9_idct16x16_10_add_c,
+                   TX_16X16, 10),
+        make_tuple(&vp9_fdct16x16_c,
+                   &vp9_idct16x16_256_add_c,
+                   &vp9_idct16x16_1_add_c,
+                   TX_16X16, 1),
+        make_tuple(&vp9_fdct8x8_c,
+                   &vp9_idct8x8_64_add_c,
+                   &vp9_idct8x8_12_add_c,
+                   TX_8X8, 12),
+        make_tuple(&vp9_fdct8x8_c,
+                   &vp9_idct8x8_64_add_c,
+                   &vp9_idct8x8_1_add_c,
+                   TX_8X8, 1),
+        make_tuple(&vp9_fdct4x4_c,
+                   &vp9_idct4x4_16_add_c,
+                   &vp9_idct4x4_1_add_c,
+                   TX_4X4, 1)));
+
+#if HAVE_NEON && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+INSTANTIATE_TEST_CASE_P(
+    NEON, PartialIDctTest,
+    ::testing::Values(
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_c,
+                   &vp9_idct32x32_1_add_neon,
+                   TX_32X32, 1),
+        make_tuple(&vp9_fdct16x16_c,
+                   &vp9_idct16x16_256_add_c,
+                   &vp9_idct16x16_10_add_neon,
+                   TX_16X16, 10),
+        make_tuple(&vp9_fdct16x16_c,
+                   &vp9_idct16x16_256_add_c,
+                   &vp9_idct16x16_1_add_neon,
+                   TX_16X16, 1),
+        make_tuple(&vp9_fdct8x8_c,
+                   &vp9_idct8x8_64_add_c,
+                   &vp9_idct8x8_12_add_neon,
+                   TX_8X8, 12),
+        make_tuple(&vp9_fdct8x8_c,
+                   &vp9_idct8x8_64_add_c,
+                   &vp9_idct8x8_1_add_neon,
+                   TX_8X8, 1),
+        make_tuple(&vp9_fdct4x4_c,
+                   &vp9_idct4x4_16_add_c,
+                   &vp9_idct4x4_1_add_neon,
+                   TX_4X4, 1)));
+#endif  // HAVE_NEON && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+
+#if HAVE_SSE2 && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+INSTANTIATE_TEST_CASE_P(
+    SSE2, PartialIDctTest,
+    ::testing::Values(
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_c,
+                   &vp9_idct32x32_34_add_sse2,
+                   TX_32X32, 34),
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_c,
+                   &vp9_idct32x32_1_add_sse2,
+                   TX_32X32, 1),
+        make_tuple(&vp9_fdct16x16_c,
+                   &vp9_idct16x16_256_add_c,
+                   &vp9_idct16x16_10_add_sse2,
+                   TX_16X16, 10),
+        make_tuple(&vp9_fdct16x16_c,
+                   &vp9_idct16x16_256_add_c,
+                   &vp9_idct16x16_1_add_sse2,
+                   TX_16X16, 1),
+        make_tuple(&vp9_fdct8x8_c,
+                   &vp9_idct8x8_64_add_c,
+                   &vp9_idct8x8_12_add_sse2,
+                   TX_8X8, 12),
+        make_tuple(&vp9_fdct8x8_c,
+                   &vp9_idct8x8_64_add_c,
+                   &vp9_idct8x8_1_add_sse2,
+                   TX_8X8, 1),
+        make_tuple(&vp9_fdct4x4_c,
+                   &vp9_idct4x4_16_add_c,
+                   &vp9_idct4x4_1_add_sse2,
+                   TX_4X4, 1)));
+#endif
+
+#if HAVE_SSSE3 && ARCH_X86_64 && !CONFIG_VP9_HIGHBITDEPTH && \
+    !CONFIG_EMULATE_HARDWARE
+INSTANTIATE_TEST_CASE_P(
+    SSSE3_64, PartialIDctTest,
+    ::testing::Values(
+        make_tuple(&vp9_fdct8x8_c,
+                   &vp9_idct8x8_64_add_c,
+                   &vp9_idct8x8_12_add_ssse3,
+                   TX_8X8, 12)));
+#endif
+
+#if HAVE_MSA && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+INSTANTIATE_TEST_CASE_P(
+    MSA, PartialIDctTest,
+    ::testing::Values(
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_c,
+                   &vp9_idct32x32_34_add_msa,
+                   TX_32X32, 34),
+        make_tuple(&vp9_fdct32x32_c,
+                   &vp9_idct32x32_1024_add_c,
+                   &vp9_idct32x32_1_add_msa,
+                   TX_32X32, 1),
+        make_tuple(&vp9_fdct16x16_c,
+                   &vp9_idct16x16_256_add_c,
+                   &vp9_idct16x16_10_add_msa,
+                   TX_16X16, 10),
+        make_tuple(&vp9_fdct16x16_c,
+                   &vp9_idct16x16_256_add_c,
+                   &vp9_idct16x16_1_add_msa,
+                   TX_16X16, 1)));
+#endif  // HAVE_MSA && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
+
+}  // namespace