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 #include "test/clear_system_state.h"
11 #include "test/register_state_check.h"
12 #include "third_party/googletest/src/include/gtest/gtest.h"
13 #include "./vpx_config.h"
14 #include "./vp8_rtcd.h"
15 #include "vpx/vpx_integer.h"
16 #include "vpx_mem/vpx_mem.h"
17
18 typedef void (*post_proc_func_t)(unsigned char *src_ptr,
19 unsigned char *dst_ptr,
20 int src_pixels_per_line,
21 int dst_pixels_per_line,
22 int cols,
23 unsigned char *flimit,
24 int size);
25
26 namespace {
27
28 class VP8PostProcessingFilterTest
29 : public ::testing::TestWithParam<post_proc_func_t> {
30 public:
TearDown()31 virtual void TearDown() {
32 libvpx_test::ClearSystemState();
33 }
34 };
35
36 // Test routine for the VP8 post-processing function
37 // vp8_post_proc_down_and_across_mb_row_c.
38
TEST_P(VP8PostProcessingFilterTest,FilterOutputCheck)39 TEST_P(VP8PostProcessingFilterTest, FilterOutputCheck) {
40 // Size of the underlying data block that will be filtered.
41 const int block_width = 16;
42 const int block_height = 16;
43
44 // 5-tap filter needs 2 padding rows above and below the block in the input.
45 const int input_width = block_width;
46 const int input_height = block_height + 4;
47 const int input_stride = input_width;
48 const int input_size = input_width * input_height;
49
50 // Filter extends output block by 8 samples at left and right edges.
51 const int output_width = block_width + 16;
52 const int output_height = block_height;
53 const int output_stride = output_width;
54 const int output_size = output_width * output_height;
55
56 uint8_t *const src_image =
57 reinterpret_cast<uint8_t*>(vpx_calloc(input_size, 1));
58 uint8_t *const dst_image =
59 reinterpret_cast<uint8_t*>(vpx_calloc(output_size, 1));
60
61 // Pointers to top-left pixel of block in the input and output images.
62 uint8_t *const src_image_ptr = src_image + (input_stride << 1);
63 uint8_t *const dst_image_ptr = dst_image + 8;
64 uint8_t *const flimits =
65 reinterpret_cast<uint8_t *>(vpx_memalign(16, block_width));
66 (void)vpx_memset(flimits, 255, block_width);
67
68 // Initialize pixels in the input:
69 // block pixels to value 1,
70 // border pixels to value 10.
71 (void)vpx_memset(src_image, 10, input_size);
72 uint8_t *pixel_ptr = src_image_ptr;
73 for (int i = 0; i < block_height; ++i) {
74 for (int j = 0; j < block_width; ++j) {
75 pixel_ptr[j] = 1;
76 }
77 pixel_ptr += input_stride;
78 }
79
80 // Initialize pixels in the output to 99.
81 (void)vpx_memset(dst_image, 99, output_size);
82
83 REGISTER_STATE_CHECK(GetParam()(src_image_ptr, dst_image_ptr, input_stride,
84 output_stride, block_width, flimits, 16));
85
86 static const uint8_t expected_data[block_height] = {
87 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 4
88 };
89
90 pixel_ptr = dst_image_ptr;
91 for (int i = 0; i < block_height; ++i) {
92 for (int j = 0; j < block_width; ++j) {
93 EXPECT_EQ(expected_data[i], pixel_ptr[j])
94 << "VP8PostProcessingFilterTest failed with invalid filter output";
95 }
96 pixel_ptr += output_stride;
97 }
98
99 vpx_free(src_image);
100 vpx_free(dst_image);
101 vpx_free(flimits);
102 };
103
104 INSTANTIATE_TEST_CASE_P(C, VP8PostProcessingFilterTest,
105 ::testing::Values(vp8_post_proc_down_and_across_mb_row_c));
106
107 #if HAVE_SSE2
108 INSTANTIATE_TEST_CASE_P(SSE2, VP8PostProcessingFilterTest,
109 ::testing::Values(vp8_post_proc_down_and_across_mb_row_sse2));
110 #endif
111
112 } // namespace
113