rotate_argb_test.cc revision 33cfdeb7b267ab635413797fffb046b73272f7ec
1/*
2 *  Copyright 2012 The LibYuv 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 <stdlib.h>
12#include <time.h>
13
14#include "libyuv/cpu_id.h"
15#include "libyuv/rotate_argb.h"
16#include "../unit_test/unit_test.h"
17
18namespace libyuv {
19
20static int ARGBTestRotate(int src_width, int src_height,
21                          int dst_width, int dst_height,
22                          libyuv::RotationMode mode, int runs) {
23  const int b = 128;
24  int src_argb_plane_size = (src_width + b * 2) * (src_height + b * 2) * 4;
25  int src_stride_argb = (b * 2 + src_width) * 4;
26
27  align_buffer_16(src_argb, src_argb_plane_size)
28  memset(src_argb, 1, src_argb_plane_size);
29
30  int dst_argb_plane_size = (dst_width + b * 2) * (dst_height + b * 2) * 4;
31  int dst_stride_argb = (b * 2 + dst_width) * 4;
32
33  srandom(time(NULL));
34
35  int i, j;
36  for (i = b; i < (src_height + b); ++i) {
37    for (j = b; j < (src_width + b) * 4; ++j) {
38      src_argb[(i * src_stride_argb) + j] = (random() & 0xff);
39    }
40  }
41
42  align_buffer_16(dst_argb_c, dst_argb_plane_size)
43  align_buffer_16(dst_argb_opt, dst_argb_plane_size)
44  memset(dst_argb_c, 2, dst_argb_plane_size);
45  memset(dst_argb_opt, 3, dst_argb_plane_size);
46
47  // Warm up both versions for consistent benchmarks.
48  MaskCpuFlags(0);  // Disable all CPU optimization.
49  ARGBRotate(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
50             dst_argb_c + (dst_stride_argb * b) + b * 4, dst_stride_argb,
51             src_width, src_height, mode);
52  MaskCpuFlags(-1);  // Enable all CPU optimization.
53  ARGBRotate(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
54             dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb,
55             src_width, src_height, mode);
56
57  MaskCpuFlags(0);  // Disable all CPU optimization.
58  double c_time = get_time();
59  for (i = 0; i < runs; ++i) {
60    ARGBRotate(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
61               dst_argb_c + (dst_stride_argb * b) + b * 4, dst_stride_argb,
62               src_width, src_height, mode);
63  }
64  c_time = (get_time() - c_time) / runs;
65
66  MaskCpuFlags(-1);  // Enable all CPU optimization.
67  double opt_time = get_time();
68  for (i = 0; i < runs; ++i) {
69    ARGBRotate(src_argb + (src_stride_argb * b) + b * 4, src_stride_argb,
70               dst_argb_opt + (dst_stride_argb * b) + b * 4, dst_stride_argb,
71               src_width, src_height, mode);
72  }
73  opt_time = (get_time() - opt_time) / runs;
74
75  // Report performance of C vs OPT
76  printf("filter %d - %8d us C - %8d us OPT\n",
77         mode, static_cast<int>(c_time*1e6), static_cast<int>(opt_time*1e6));
78
79  // C version may be a little off from the optimized. Order of
80  //  operations may introduce rounding somewhere. So do a difference
81  //  of the buffers and look to see that the max difference isn't
82  //  over 2.
83  int max_diff = 0;
84  for (i = b; i < (dst_height + b); ++i) {
85    for (j = b * 4; j < (dst_width + b) * 4; ++j) {
86      int abs_diff = abs(dst_argb_c[(i * dst_stride_argb) + j] -
87                         dst_argb_opt[(i * dst_stride_argb) + j]);
88      if (abs_diff > max_diff)
89        max_diff = abs_diff;
90    }
91  }
92
93  free_aligned_buffer_16(dst_argb_c)
94  free_aligned_buffer_16(dst_argb_opt)
95  free_aligned_buffer_16(src_argb)
96  return max_diff;
97}
98
99TEST_F(libyuvTest, ARGBRotate0) {
100  const int src_width = 1280;
101  const int src_height = 720;
102  const int dst_width = 1280;
103  const int dst_height = 720;
104
105  int err = ARGBTestRotate(src_width, src_height,
106                           dst_width, dst_height, kRotate0,
107                           benchmark_iterations_);
108  EXPECT_GE(1, err);
109}
110
111TEST_F(libyuvTest, ARGBRotate90) {
112  const int src_width = 1280;
113  const int src_height = 720;
114  const int dst_width = 720;
115  const int dst_height = 1280;
116
117  int err = ARGBTestRotate(src_width, src_height,
118                           dst_width, dst_height, kRotate90,
119                           benchmark_iterations_);
120  EXPECT_GE(1, err);
121}
122
123TEST_F(libyuvTest, ARGBRotate180) {
124  const int src_width = 1280;
125  const int src_height = 720;
126  const int dst_width = 1280;
127  const int dst_height = 720;
128
129  int err = ARGBTestRotate(src_width, src_height,
130                           dst_width, dst_height, kRotate180,
131                           benchmark_iterations_);
132  EXPECT_GE(1, err);
133}
134
135TEST_F(libyuvTest, ARGBRotate270) {
136  const int src_width = 1280;
137  const int src_height = 720;
138  const int dst_width = 720;
139  const int dst_height = 1280;
140
141  int err = ARGBTestRotate(src_width, src_height,
142                           dst_width, dst_height, kRotate270,
143                           benchmark_iterations_);
144  EXPECT_GE(1, err);
145}
146
147TEST_F(libyuvTest, ARGBRotate0_Odd) {
148  const int src_width = 1277;
149  const int src_height = 719;
150  const int dst_width = 1277;
151  const int dst_height = 719;
152
153  int err = ARGBTestRotate(src_width, src_height,
154                           dst_width, dst_height, kRotate0,
155                           benchmark_iterations_);
156  EXPECT_GE(1, err);
157}
158
159TEST_F(libyuvTest, ARGBRotate90_Odd) {
160  const int src_width = 1277;
161  const int src_height = 719;
162  const int dst_width = 719;
163  const int dst_height = 1277;
164
165  int err = ARGBTestRotate(src_width, src_height,
166                           dst_width, dst_height, kRotate90,
167                           benchmark_iterations_);
168  EXPECT_GE(1, err);
169}
170
171TEST_F(libyuvTest, ARGBRotate180_Odd) {
172  const int src_width = 1277;
173  const int src_height = 719;
174  const int dst_width = 1277;
175  const int dst_height = 719;
176
177  int err = ARGBTestRotate(src_width, src_height,
178                           dst_width, dst_height, kRotate180,
179                           benchmark_iterations_);
180  EXPECT_GE(1, err);
181}
182
183TEST_F(libyuvTest, ARGBRotate270_Odd) {
184  const int src_width = 1277;
185  const int src_height = 719;
186  const int dst_width = 719;
187  const int dst_height = 1277;
188
189  int err = ARGBTestRotate(src_width, src_height,
190                           dst_width, dst_height, kRotate270,
191                           benchmark_iterations_);
192  EXPECT_GE(1, err);
193}
194
195}  // namespace libyuv
196