test/idct_test.cc

   1 /*
   2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
   3  *
   4  *  Use of this source code is governed by a BSD-style license
   5  *  that can be found in the LICENSE file in the root of the source
   6  *  tree. An additional intellectual property rights grant can be found
   7  *  in the file PATENTS.  All contributing project authors may
   8  *  be found in the AUTHORS file in the root of the source tree.
   9  */
  10
  11 #include "./vpx_config.h"
  12 #include "./vp8_rtcd.h"
  13
  14 #include "third_party/googletest/src/include/gtest/gtest.h"
  15
  16 #include "test/clear_system_state.h"
  17 #include "test/register_state_check.h"
  18 #include "vpx/vpx_integer.h"
  19
  20 typedef void (*IdctFunc)(int16_t *input, unsigned char *pred_ptr,
  21                          int pred_stride, unsigned char *dst_ptr,
  22                          int dst_stride);
  23 namespace {
  24 class IDCTTest : public ::testing::TestWithParam<IdctFunc> {
  25  protected:
  26   virtual void SetUp() {
  27     int i;
  28
  29     UUT = GetParam();
  30     memset(input, 0, sizeof(input));
  31     /* Set up guard blocks */
  32     for (i = 0; i < 256; i++) output[i] = ((i & 0xF) < 4 && (i < 64)) ? 0 : -1;
  33   }
  34
  35   virtual void TearDown() { libvpx_test::ClearSystemState(); }
  36
  37   IdctFunc UUT;
  38   int16_t input[16];
  39   unsigned char output[256];
  40   unsigned char predict[256];
  41 };
  42
  43 TEST_P(IDCTTest, TestGuardBlocks) {
  44   int i;
  45
  46   for (i = 0; i < 256; i++)
  47     if ((i & 0xF) < 4 && i < 64)
  48       EXPECT_EQ(0, output[i]) << i;
  49     else
  50       EXPECT_EQ(255, output[i]);
  51 }
  52
  53 TEST_P(IDCTTest, TestAllZeros) {
  54   int i;
  55
  56   ASM_REGISTER_STATE_CHECK(UUT(input, output, 16, output, 16));
  57
  58   for (i = 0; i < 256; i++)
  59     if ((i & 0xF) < 4 && i < 64)
  60       EXPECT_EQ(0, output[i]) << "i==" << i;
  61     else
  62       EXPECT_EQ(255, output[i]) << "i==" << i;
  63 }
  64
  65 TEST_P(IDCTTest, TestAllOnes) {
  66   int i;
  67
  68   input[0] = 4;
  69   ASM_REGISTER_STATE_CHECK(UUT(input, output, 16, output, 16));
  70
  71   for (i = 0; i < 256; i++)
  72     if ((i & 0xF) < 4 && i < 64)
  73       EXPECT_EQ(1, output[i]) << "i==" << i;
  74     else
  75       EXPECT_EQ(255, output[i]) << "i==" << i;
  76 }
  77
  78 TEST_P(IDCTTest, TestAddOne) {
  79   int i;
  80
  81   for (i = 0; i < 256; i++) predict[i] = i;
  82   input[0] = 4;
  83   ASM_REGISTER_STATE_CHECK(UUT(input, predict, 16, output, 16));
  84
  85   for (i = 0; i < 256; i++)
  86     if ((i & 0xF) < 4 && i < 64)
  87       EXPECT_EQ(i + 1, output[i]) << "i==" << i;
  88     else
  89       EXPECT_EQ(255, output[i]) << "i==" << i;
  90 }
  91
  92 TEST_P(IDCTTest, TestWithData) {
  93   int i;
  94
  95   for (i = 0; i < 16; i++) input[i] = i;
  96
  97   ASM_REGISTER_STATE_CHECK(UUT(input, output, 16, output, 16));
  98
  99   for (i = 0; i < 256; i++)
 100     if ((i & 0xF) > 3 || i > 63)
 101       EXPECT_EQ(255, output[i]) << "i==" << i;
 102     else if (i == 0)
 103       EXPECT_EQ(11, output[i]) << "i==" << i;
 104     else if (i == 34)
 105       EXPECT_EQ(1, output[i]) << "i==" << i;
 106     else if (i == 2 || i == 17 || i == 32)
 107       EXPECT_EQ(3, output[i]) << "i==" << i;
 108     else
 109       EXPECT_EQ(0, output[i]) << "i==" << i;
 110 }
 111
 112 INSTANTIATE_TEST_CASE_P(C, IDCTTest, ::testing::Values(vp8_short_idct4x4llm_c));
 113 #if HAVE_MMX
 114 INSTANTIATE_TEST_CASE_P(MMX, IDCTTest,
 115                         ::testing::Values(vp8_short_idct4x4llm_mmx));
 116 #endif
 117 #if HAVE_MSA
 118 INSTANTIATE_TEST_CASE_P(MSA, IDCTTest,
 119                         ::testing::Values(vp8_short_idct4x4llm_msa));
 120 #endif
 121 }