2 Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file test/image_test.cc
21 * @brief Tests of the Image class.
23 * @see test/make_black_test.cc, test/pixel_formats_test.cc
26 #include <boost/test/unit_test.hpp>
28 #include "lib/image.h"
33 using boost::shared_ptr;
35 BOOST_AUTO_TEST_CASE (aligned_image_test)
37 Image* s = new Image (PIX_FMT_RGB24, dcp::Size (50, 50), true);
38 BOOST_CHECK_EQUAL (s->components(), 1);
39 /* 160 is 150 aligned to the nearest 32 bytes */
40 BOOST_CHECK_EQUAL (s->stride()[0], 160);
41 BOOST_CHECK_EQUAL (s->line_size()[0], 150);
42 BOOST_CHECK (s->data()[0]);
43 BOOST_CHECK (!s->data()[1]);
44 BOOST_CHECK (!s->data()[2]);
45 BOOST_CHECK (!s->data()[3]);
47 /* copy constructor */
48 Image* t = new Image (*s);
49 BOOST_CHECK_EQUAL (t->components(), 1);
50 BOOST_CHECK_EQUAL (t->stride()[0], 160);
51 BOOST_CHECK_EQUAL (t->line_size()[0], 150);
52 BOOST_CHECK (t->data()[0]);
53 BOOST_CHECK (!t->data()[1]);
54 BOOST_CHECK (!t->data()[2]);
55 BOOST_CHECK (!t->data()[3]);
56 BOOST_CHECK (t->data() != s->data());
57 BOOST_CHECK (t->data()[0] != s->data()[0]);
58 BOOST_CHECK (t->line_size() != s->line_size());
59 BOOST_CHECK_EQUAL (t->line_size()[0], s->line_size()[0]);
60 BOOST_CHECK (t->stride() != s->stride());
61 BOOST_CHECK_EQUAL (t->stride()[0], s->stride()[0]);
63 /* assignment operator */
64 Image* u = new Image (PIX_FMT_YUV422P, dcp::Size (150, 150), false);
66 BOOST_CHECK_EQUAL (u->components(), 1);
67 BOOST_CHECK_EQUAL (u->stride()[0], 160);
68 BOOST_CHECK_EQUAL (u->line_size()[0], 150);
69 BOOST_CHECK (u->data()[0]);
70 BOOST_CHECK (!u->data()[1]);
71 BOOST_CHECK (!u->data()[2]);
72 BOOST_CHECK (!u->data()[3]);
73 BOOST_CHECK (u->data() != s->data());
74 BOOST_CHECK (u->data()[0] != s->data()[0]);
75 BOOST_CHECK (u->line_size() != s->line_size());
76 BOOST_CHECK_EQUAL (u->line_size()[0], s->line_size()[0]);
77 BOOST_CHECK (u->stride() != s->stride());
78 BOOST_CHECK_EQUAL (u->stride()[0], s->stride()[0]);
85 BOOST_AUTO_TEST_CASE (compact_image_test)
87 Image* s = new Image (PIX_FMT_RGB24, dcp::Size (50, 50), false);
88 BOOST_CHECK_EQUAL (s->components(), 1);
89 BOOST_CHECK_EQUAL (s->stride()[0], 50 * 3);
90 BOOST_CHECK_EQUAL (s->line_size()[0], 50 * 3);
91 BOOST_CHECK (s->data()[0]);
92 BOOST_CHECK (!s->data()[1]);
93 BOOST_CHECK (!s->data()[2]);
94 BOOST_CHECK (!s->data()[3]);
96 /* copy constructor */
97 Image* t = new Image (*s);
98 BOOST_CHECK_EQUAL (t->components(), 1);
99 BOOST_CHECK_EQUAL (t->stride()[0], 50 * 3);
100 BOOST_CHECK_EQUAL (t->line_size()[0], 50 * 3);
101 BOOST_CHECK (t->data()[0]);
102 BOOST_CHECK (!t->data()[1]);
103 BOOST_CHECK (!t->data()[2]);
104 BOOST_CHECK (!t->data()[3]);
105 BOOST_CHECK (t->data() != s->data());
106 BOOST_CHECK (t->data()[0] != s->data()[0]);
107 BOOST_CHECK (t->line_size() != s->line_size());
108 BOOST_CHECK_EQUAL (t->line_size()[0], s->line_size()[0]);
109 BOOST_CHECK (t->stride() != s->stride());
110 BOOST_CHECK_EQUAL (t->stride()[0], s->stride()[0]);
112 /* assignment operator */
113 Image* u = new Image (PIX_FMT_YUV422P, dcp::Size (150, 150), true);
115 BOOST_CHECK_EQUAL (u->components(), 1);
116 BOOST_CHECK_EQUAL (u->stride()[0], 50 * 3);
117 BOOST_CHECK_EQUAL (u->line_size()[0], 50 * 3);
118 BOOST_CHECK (u->data()[0]);
119 BOOST_CHECK (!u->data()[1]);
120 BOOST_CHECK (!u->data()[2]);
121 BOOST_CHECK (!u->data()[3]);
122 BOOST_CHECK (u->data() != s->data());
123 BOOST_CHECK (u->data()[0] != s->data()[0]);
124 BOOST_CHECK (u->line_size() != s->line_size());
125 BOOST_CHECK_EQUAL (u->line_size()[0], s->line_size()[0]);
126 BOOST_CHECK (u->stride() != s->stride());
127 BOOST_CHECK_EQUAL (u->stride()[0], s->stride()[0]);
134 BOOST_AUTO_TEST_CASE (crop_image_test)
136 /* This was to check out a bug with valgrind, and is probably not very useful */
137 shared_ptr<Image> image (new Image (PIX_FMT_YUV420P, dcp::Size (16, 16), true));
138 image->make_black ();
141 image->crop (crop, false);
144 /* Test cropping of a YUV 4:2:0 image by 1 pixel, which used to fail because
145 the U/V copying was not rounded up to the next sample.
147 BOOST_AUTO_TEST_CASE (crop_image_test2)
149 /* Here's a 1998 x 1080 image which is black */
150 shared_ptr<Image> image (new Image (PIX_FMT_YUV420P, dcp::Size (1998, 1080), true));
151 image->make_black ();
153 /* Crop it by 1 pixel */
156 image = image->crop (crop, true);
158 /* Convert it back to RGB to make comparison to black easier */
159 image = image->scale (image->size(), dcp::YUV_TO_RGB_REC601, PIX_FMT_RGB24, true);
161 /* Check that its still black after the crop */
162 uint8_t* p = image->data()[0];
163 for (int y = 0; y < image->size().height; ++y) {
165 for (int x = 0; x < image->size().width; ++x) {
166 BOOST_CHECK_EQUAL (*q++, 0);
167 BOOST_CHECK_EQUAL (*q++, 0);
168 BOOST_CHECK_EQUAL (*q++, 0);
170 p += image->stride()[0];
176 crop_scale_window_single (AVPixelFormat in_format, dcp::Size in_size, Crop crop, dcp::Size inter_size, dcp::Size out_size)
178 /* Set up our test image */
179 shared_ptr<Image> test (new Image (in_format, in_size, true));
181 for (int c = 0; c < test->components(); ++c) {
182 uint8_t* p = test->data()[c];
183 for (int y = 0; y < test->lines(c); ++y) {
184 for (int x = 0; x < test->stride()[c]; ++x) {
190 /* Convert using separate methods */
191 boost::shared_ptr<Image> sep = test->crop (crop, true);
192 sep = sep->scale (inter_size, dcp::YUV_TO_RGB_REC601, PIX_FMT_RGB24, true);
193 boost::shared_ptr<Image> sep_container (new Image (PIX_FMT_RGB24, out_size, true));
194 sep_container->make_black ();
195 sep_container->copy (sep, Position<int> ((out_size.width - inter_size.width) / 2, (out_size.height - inter_size.height) / 2));
197 /* Convert using the all-in-one method */
198 shared_ptr<Image> all = test->crop_scale_window (crop, inter_size, out_size, dcp::YUV_TO_RGB_REC601, PIX_FMT_RGB24, true);
201 BOOST_CHECK_EQUAL (sep_container->size().width, all->size().width);
202 BOOST_CHECK_EQUAL (sep_container->size().height, all->size().height);
204 /* Assuming RGB on these */
205 BOOST_CHECK_EQUAL (sep_container->components(), 1);
206 BOOST_CHECK_EQUAL (all->components(), 1);
208 uint8_t* p = sep_container->data()[0];
209 uint8_t* q = all->data()[0];
210 for (int y = 0; y < all->size().height; ++y) {
213 for (int x = 0; x < all->size().width * 3; ++x) {
214 BOOST_CHECK_EQUAL (*pp++, *qq++);
216 p += sep_container->stride()[0];
217 q += all->stride()[0];
221 /** Test Image::crop_scale_window against separate calls to crop/scale/copy */
222 BOOST_AUTO_TEST_CASE (crop_scale_window_test)
224 crop_scale_window_single (AV_PIX_FMT_YUV422P, dcp::Size (640, 480), Crop (), dcp::Size (640, 480), dcp::Size (640, 480));
225 crop_scale_window_single (AV_PIX_FMT_YUV422P, dcp::Size (640, 480), Crop (2, 4, 6, 8), dcp::Size (640, 480), dcp::Size (640, 480));
226 crop_scale_window_single (AV_PIX_FMT_YUV422P, dcp::Size (640, 480), Crop (2, 4, 6, 8), dcp::Size (1920, 1080), dcp::Size (1998, 1080));
227 crop_scale_window_single (AV_PIX_FMT_YUV422P, dcp::Size (640, 480), Crop (1, 4, 6, 8), dcp::Size (1920, 1080), dcp::Size (1998, 1080));
228 crop_scale_window_single (AV_PIX_FMT_YUV420P, dcp::Size (640, 480), Crop (16, 16, 0, 0), dcp::Size (1920, 1080), dcp::Size (1998, 1080));
229 crop_scale_window_single (AV_PIX_FMT_YUV420P, dcp::Size (640, 480), Crop (16, 3, 3, 0), dcp::Size (1920, 1080), dcp::Size (1998, 1080));
230 crop_scale_window_single (AV_PIX_FMT_RGB24, dcp::Size (1000, 800), Crop (0, 0, 0, 0), dcp::Size (1920, 1080), dcp::Size (1998, 1080));
231 crop_scale_window_single (AV_PIX_FMT_RGB24, dcp::Size (1000, 800), Crop (55, 0, 1, 9), dcp::Size (1920, 1080), dcp::Size (1998, 1080));
234 /** Test Image::alpha_blend */
235 BOOST_AUTO_TEST_CASE (alpha_blend_test)
237 int const stride = 48 * 4;
239 shared_ptr<Image> A (new Image (AV_PIX_FMT_RGBA, dcp::Size (48, 48), false));
241 uint8_t* a = A->data()[0];
243 for (int y = 0; y < 48; ++y) {
244 uint8_t* p = a + y * stride;
245 for (int x = 0; x < 16; ++x) {
247 p[(x + 16) * 4 + 1] = 255;
248 p[(x + 32) * 4 + 2] = 255;
252 shared_ptr<Image> B (new Image (AV_PIX_FMT_RGBA, dcp::Size (48, 48), true));
253 B->make_transparent ();
254 uint8_t* b = B->data()[0];
256 for (int y = 32; y < 48; ++y) {
257 uint8_t* p = b + y * stride;
258 for (int x = 0; x < 48; ++x) {
266 A->alpha_blend (B, Position<int> (0, 0));
268 for (int y = 0; y < 32; ++y) {
269 uint8_t* p = a + y * stride;
270 for (int x = 0; x < 16; ++x) {
271 BOOST_CHECK_EQUAL (p[x * 4], 255);
272 BOOST_CHECK_EQUAL (p[(x + 16) * 4 + 1], 255);
273 BOOST_CHECK_EQUAL (p[(x + 32) * 4 + 2], 255);
277 for (int y = 32; y < 48; ++y) {
278 uint8_t* p = a + y * stride;
279 for (int x = 0; x < 48; ++x) {
280 BOOST_CHECK_EQUAL (p[x * 4], 255);
281 BOOST_CHECK_EQUAL (p[x * 4 + 1], 255);
282 BOOST_CHECK_EQUAL (p[x * 4 + 2], 255);
283 BOOST_CHECK_EQUAL (p[x * 4 + 3], 255);
288 /** Test merge (list<PositionImage>) with a single image */
289 BOOST_AUTO_TEST_CASE (merge_test1)
291 int const stride = 48 * 4;
293 shared_ptr<Image> A (new Image (AV_PIX_FMT_RGBA, dcp::Size (48, 48), false));
294 A->make_transparent ();
295 uint8_t* a = A->data()[0];
297 for (int y = 0; y < 48; ++y) {
298 uint8_t* p = a + y * stride;
299 for (int x = 0; x < 16; ++x) {
307 list<PositionImage> all;
308 all.push_back (PositionImage (A, Position<int> (0, 0)));
309 PositionImage merged = merge (all);
311 BOOST_CHECK (merged.position == Position<int> (0, 0));
312 BOOST_CHECK_EQUAL (memcmp (merged.image->data()[0], A->data()[0], stride * 48), 0);
315 /** Test merge (list<PositionImage>) with two images */
316 BOOST_AUTO_TEST_CASE (merge_test2)
318 shared_ptr<Image> A (new Image (AV_PIX_FMT_RGBA, dcp::Size (48, 1), false));
319 A->make_transparent ();
320 uint8_t* a = A->data()[0];
321 for (int x = 0; x < 16; ++x) {
328 shared_ptr<Image> B (new Image (AV_PIX_FMT_RGBA, dcp::Size (48, 1), false));
329 B->make_transparent ();
330 uint8_t* b = B->data()[0];
331 for (int x = 0; x < 16; ++x) {
333 b[(x + 32) * 4 + 2] = 255;
335 b[(x + 32) * 4 + 3] = 255;
338 list<PositionImage> all;
339 all.push_back (PositionImage (A, Position<int> (0, 0)));
340 all.push_back (PositionImage (B, Position<int> (0, 0)));
341 PositionImage merged = merge (all);
343 BOOST_CHECK (merged.position == Position<int> (0, 0));
345 uint8_t* m = merged.image->data()[0];
347 for (int x = 0; x < 16; ++x) {
348 BOOST_CHECK_EQUAL (m[x * 4], 255);
349 BOOST_CHECK_EQUAL (m[x * 4 + 3], 255);
350 BOOST_CHECK_EQUAL (m[(x + 16) * 4 + 3], 0);
351 BOOST_CHECK_EQUAL (m[(x + 32) * 4 + 2], 255);
352 BOOST_CHECK_EQUAL (m[(x + 32) * 4 + 3], 255);