libvpx: Pull from upstream

source/libvpx/test/vp9_error_block_test.cc

Index: source/libvpx/test/vp9_error_block_test.cc
===================================================================
--- source/libvpx/test/vp9_error_block_test.cc	(revision 0)
+++ source/libvpx/test/vp9_error_block_test.cc	(working copy)
@@ -0,0 +1,150 @@
+/*
+ *  Copyright (c) 2014 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 <cmath>
+#include <cstdlib>
+#include <string>
+
+#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_integer.h"
+
+using libvpx_test::ACMRandom;
+
+namespace {
+#if CONFIG_VP9_HIGHBITDEPTH
+const int kNumIterations = 1000;
+
+typedef int64_t (*ErrorBlockFunc)(const tran_low_t *coeff,
+                                  const tran_low_t *dqcoeff,
+                                  intptr_t block_size,
+                                  int64_t *ssz, int bps);
+
+typedef std::tr1::tuple<ErrorBlockFunc, ErrorBlockFunc, vpx_bit_depth_t>
+                        ErrorBlockParam;
+
+class ErrorBlockTest
+  : public ::testing::TestWithParam<ErrorBlockParam> {
+ public:
+  virtual ~ErrorBlockTest() {}
+  virtual void SetUp() {
+    error_block_op_     = GET_PARAM(0);
+    ref_error_block_op_ = GET_PARAM(1);
+    bit_depth_  = GET_PARAM(2);
+  }
+
+  virtual void TearDown() { libvpx_test::ClearSystemState(); }
+
+ protected:
+  vpx_bit_depth_t bit_depth_;
+  ErrorBlockFunc error_block_op_;
+  ErrorBlockFunc ref_error_block_op_;
+};
+
+TEST_P(ErrorBlockTest, OperationCheck) {
+  ACMRandom rnd(ACMRandom::DeterministicSeed());
+  DECLARE_ALIGNED_ARRAY(16, tran_low_t, coeff,   4096);
+  DECLARE_ALIGNED_ARRAY(16, tran_low_t, dqcoeff, 4096);
+  int err_count_total = 0;
+  int first_failure = -1;
+  intptr_t block_size;
+  int64_t ssz;
+  int64_t ret;
+  int64_t ref_ssz;
+  int64_t ref_ret;
+  for (int i = 0; i < kNumIterations; ++i) {
+    int err_count = 0;
+    block_size = 16 << (i % 9);  // All block sizes from 4x4, 8x4 ..64x64
+    for (int j = 0; j < block_size; j++) {
+      coeff[j]   = rnd(2 << 20) - (1 << 20);
+      dqcoeff[j] = rnd(2 << 20) - (1 << 20);
+    }
+    ref_ret = ref_error_block_op_(coeff, dqcoeff, block_size, &ref_ssz,
+                                  bit_depth_);
+    ASM_REGISTER_STATE_CHECK(ret = error_block_op_(coeff, dqcoeff, block_size,
+                                                   &ssz, bit_depth_));
+    err_count += (ref_ret != ret) | (ref_ssz != ssz);
+    if (err_count && !err_count_total) {
+      first_failure = i;
+    }
+    err_count_total += err_count;
+  }
+  EXPECT_EQ(0, err_count_total)
+      << "Error: Error Block Test, C output doesn't match SSE2 output. "
+      << "First failed at test case " << first_failure;
+}
+
+TEST_P(ErrorBlockTest, ExtremeValues) {
+  ACMRandom rnd(ACMRandom::DeterministicSeed());
+  DECLARE_ALIGNED_ARRAY(16, tran_low_t, coeff,   4096);
+  DECLARE_ALIGNED_ARRAY(16, tran_low_t, dqcoeff, 4096);
+  int err_count_total = 0;
+  int first_failure = -1;
+  intptr_t block_size;
+  int64_t ssz;
+  int64_t ret;
+  int64_t ref_ssz;
+  int64_t ref_ret;
+  int max_val = ((1 << 20) - 1);
+  for (int i = 0; i < kNumIterations; ++i) {
+    int err_count = 0;
+    int k = (i / 9) % 5;
+
+    // Change the maximum coeff value, to test different bit boundaries
+    if ( k == 4 && (i % 9) == 0 ) {
+      max_val >>= 1;
+    }
+    block_size = 16 << (i % 9);  // All block sizes from 4x4, 8x4 ..64x64
+    for (int j = 0; j < block_size; j++) {
+      if (k < 4) {  // Test at maximum values
+        coeff[j]   = k % 2 ? max_val : -max_val;
+        dqcoeff[j] = (k >> 1) % 2 ? max_val : -max_val;
+      } else {
+        coeff[j]   = rnd(2 << 14) - (1 << 14);
+        dqcoeff[j] = rnd(2 << 14) - (1 << 14);
+      }
+    }
+    ref_ret = ref_error_block_op_(coeff, dqcoeff, block_size, &ref_ssz,
+                                  bit_depth_);
+    ASM_REGISTER_STATE_CHECK(ret = error_block_op_(coeff, dqcoeff, block_size,
+                                                   &ssz, bit_depth_));
+    err_count += (ref_ret != ret) | (ref_ssz != ssz);
+    if (err_count && !err_count_total) {
+      first_failure = i;
+    }
+    err_count_total += err_count;
+  }
+  EXPECT_EQ(0, err_count_total)
+      << "Error: Error Block Test, C output doesn't match SSE2 output. "
+      << "First failed at test case " << first_failure;
+}
+
+using std::tr1::make_tuple;
+
+#if HAVE_SSE2
+INSTANTIATE_TEST_CASE_P(
+    SSE2, ErrorBlockTest,
+    ::testing::Values(
+        make_tuple(&vp9_highbd_block_error_sse2,
+                   &vp9_highbd_block_error_c, VPX_BITS_10),
+        make_tuple(&vp9_highbd_block_error_sse2,
+                   &vp9_highbd_block_error_c, VPX_BITS_12),
+        make_tuple(&vp9_highbd_block_error_sse2,
+                   &vp9_highbd_block_error_c, VPX_BITS_8)));
+#endif  // HAVE_SSE2
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+}  // namespace