1/*
2 *  Copyright (c) 2012 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 "third_party/googletest/src/include/gtest/gtest.h"
12#include "test/acm_random.h"
13#include "test/clear_system_state.h"
14#include "test/register_state_check.h"
15#include "./vpx_config.h"
16#include "./vp9_rtcd.h"
17#include "vp9/common/vp9_blockd.h"
18#include "vpx_mem/vpx_mem.h"
19
20typedef void (*subtract_fn_t)(int rows, int cols,
21                              int16_t *diff_ptr, ptrdiff_t diff_stride,
22                              const uint8_t *src_ptr, ptrdiff_t src_stride,
23                              const uint8_t *pred_ptr, ptrdiff_t pred_stride);
24
25namespace vp9 {
26
27class VP9SubtractBlockTest : public ::testing::TestWithParam<subtract_fn_t> {
28 public:
29  virtual void TearDown() {
30    libvpx_test::ClearSystemState();
31  }
32};
33
34using libvpx_test::ACMRandom;
35
36TEST_P(VP9SubtractBlockTest, SimpleSubtract) {
37  ACMRandom rnd(ACMRandom::DeterministicSeed());
38
39  // FIXME(rbultje) split in its own file
40  for (BLOCK_SIZE bsize = BLOCK_4X4; bsize < BLOCK_SIZES;
41       bsize = static_cast<BLOCK_SIZE>(static_cast<int>(bsize) + 1)) {
42    const int block_width = 4 * num_4x4_blocks_wide_lookup[bsize];
43    const int block_height = 4 * num_4x4_blocks_high_lookup[bsize];
44    int16_t *diff = reinterpret_cast<int16_t *>(
45        vpx_memalign(16, sizeof(*diff) * block_width * block_height * 2));
46    uint8_t *pred = reinterpret_cast<uint8_t *>(
47        vpx_memalign(16, block_width * block_height * 2));
48    uint8_t *src  = reinterpret_cast<uint8_t *>(
49        vpx_memalign(16, block_width * block_height * 2));
50
51    for (int n = 0; n < 100; n++) {
52      for (int r = 0; r < block_height; ++r) {
53        for (int c = 0; c < block_width * 2; ++c) {
54          src[r * block_width * 2 + c] = rnd.Rand8();
55          pred[r * block_width * 2 + c] = rnd.Rand8();
56        }
57      }
58
59      GetParam()(block_height, block_width, diff, block_width,
60                 src, block_width, pred, block_width);
61
62      for (int r = 0; r < block_height; ++r) {
63        for (int c = 0; c < block_width; ++c) {
64          EXPECT_EQ(diff[r * block_width + c],
65                    (src[r * block_width + c] -
66                     pred[r * block_width + c])) << "r = " << r
67                                                 << ", c = " << c
68                                                 << ", bs = " << bsize;
69        }
70      }
71
72      GetParam()(block_height, block_width, diff, block_width * 2,
73                 src, block_width * 2, pred, block_width * 2);
74
75      for (int r = 0; r < block_height; ++r) {
76        for (int c = 0; c < block_width; ++c) {
77          EXPECT_EQ(diff[r * block_width * 2 + c],
78                    (src[r * block_width * 2 + c] -
79                     pred[r * block_width * 2 + c])) << "r = " << r
80                                                     << ", c = " << c
81                                                     << ", bs = " << bsize;
82        }
83      }
84    }
85    vpx_free(diff);
86    vpx_free(pred);
87    vpx_free(src);
88  }
89}
90
91INSTANTIATE_TEST_CASE_P(C, VP9SubtractBlockTest,
92                        ::testing::Values(vp9_subtract_block_c));
93
94#if HAVE_SSE2 && CONFIG_USE_X86INC
95INSTANTIATE_TEST_CASE_P(SSE2, VP9SubtractBlockTest,
96                        ::testing::Values(vp9_subtract_block_sse2));
97#endif
98}  // namespace vp9
99