1 files changed, 122 insertions, 0 deletions
diff --git a/third_party/aom/test/idct_test.cc b/third_party/aom/test/idct_test.cc
new file mode 100644
index 000000000..a880a9182
--- /dev/null
+++ b/third_party/aom/test/idct_test.cc
@@ -0,0 +1,122 @@
+/*
+ * 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 "./aom_config.h"
+#include "./aom_rtcd.h"
+
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+
+#include "test/clear_system_state.h"
+#include "test/register_state_check.h"
+#include "aom/aom_integer.h"
+
+typedef void (*IdctFunc)(int16_t *input, unsigned char *pred_ptr,
+                         int pred_stride, unsigned char *dst_ptr,
+                         int dst_stride);
+namespace {
+class IDCTTest : public ::testing::TestWithParam<IdctFunc> {
+ protected:
+  virtual void SetUp() {
+    int i;
+
+    UUT = GetParam();
+    memset(input, 0, sizeof(input));
+    /* Set up guard blocks */
+    for (i = 0; i < 256; i++) output[i] = ((i & 0xF) < 4 && (i < 64)) ? 0 : -1;
+  }
+
+  virtual void TearDown() { libaom_test::ClearSystemState(); }
+
+  IdctFunc UUT;
+  int16_t input[16];
+  unsigned char output[256];
+  unsigned char predict[256];
+};
+
+TEST_P(IDCTTest, TestGuardBlocks) {
+  int i;
+
+  for (i = 0; i < 256; i++)
+    if ((i & 0xF) < 4 && i < 64)
+      EXPECT_EQ(0, output[i]) << i;
+    else
+      EXPECT_EQ(255, output[i]);
+}
+
+TEST_P(IDCTTest, TestAllZeros) {
+  int i;
+
+  ASM_REGISTER_STATE_CHECK(UUT(input, output, 16, output, 16));
+
+  for (i = 0; i < 256; i++)
+    if ((i & 0xF) < 4 && i < 64)
+      EXPECT_EQ(0, output[i]) << "i==" << i;
+    else
+      EXPECT_EQ(255, output[i]) << "i==" << i;
+}
+
+TEST_P(IDCTTest, TestAllOnes) {
+  int i;
+
+  input[0] = 4;
+  ASM_REGISTER_STATE_CHECK(UUT(input, output, 16, output, 16));
+
+  for (i = 0; i < 256; i++)
+    if ((i & 0xF) < 4 && i < 64)
+      EXPECT_EQ(1, output[i]) << "i==" << i;
+    else
+      EXPECT_EQ(255, output[i]) << "i==" << i;
+}
+
+TEST_P(IDCTTest, TestAddOne) {
+  int i;
+
+  for (i = 0; i < 256; i++) predict[i] = i;
+  input[0] = 4;
+  ASM_REGISTER_STATE_CHECK(UUT(input, predict, 16, output, 16));
+
+  for (i = 0; i < 256; i++)
+    if ((i & 0xF) < 4 && i < 64)
+      EXPECT_EQ(i + 1, output[i]) << "i==" << i;
+    else
+      EXPECT_EQ(255, output[i]) << "i==" << i;
+}
+
+TEST_P(IDCTTest, TestWithData) {
+  int i;
+
+  for (i = 0; i < 16; i++) input[i] = i;
+
+  ASM_REGISTER_STATE_CHECK(UUT(input, output, 16, output, 16));
+
+  for (i = 0; i < 256; i++)
+    if ((i & 0xF) > 3 || i > 63)
+      EXPECT_EQ(255, output[i]) << "i==" << i;
+    else if (i == 0)
+      EXPECT_EQ(11, output[i]) << "i==" << i;
+    else if (i == 34)
+      EXPECT_EQ(1, output[i]) << "i==" << i;
+    else if (i == 2 || i == 17 || i == 32)
+      EXPECT_EQ(3, output[i]) << "i==" << i;
+    else
+      EXPECT_EQ(0, output[i]) << "i==" << i;
+}
+
+INSTANTIATE_TEST_CASE_P(C, IDCTTest, ::testing::Values(aom_short_idct4x4llm_c));
+#if HAVE_MMX
+INSTANTIATE_TEST_CASE_P(MMX, IDCTTest,
+                        ::testing::Values(aom_short_idct4x4llm_mmx));
+#endif
+#if HAVE_MSA
+INSTANTIATE_TEST_CASE_P(MSA, IDCTTest,
+                        ::testing::Values(aom_short_idct4x4llm_msa));
+#endif
+}