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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <boost/test/unit_test.hpp>
#include "lib/image.h"
#include "lib/scaler.h"
using boost::shared_ptr;
BOOST_AUTO_TEST_CASE (aligned_image_test)
{
Image* s = new Image (PIX_FMT_RGB24, libdcp::Size (50, 50), true);
BOOST_CHECK_EQUAL (s->components(), 1);
/* 160 is 150 aligned to the nearest 32 bytes */
BOOST_CHECK_EQUAL (s->stride()[0], 160);
BOOST_CHECK_EQUAL (s->line_size()[0], 150);
BOOST_CHECK (s->data()[0]);
BOOST_CHECK (!s->data()[1]);
BOOST_CHECK (!s->data()[2]);
BOOST_CHECK (!s->data()[3]);
/* copy constructor */
Image* t = new Image (*s);
BOOST_CHECK_EQUAL (t->components(), 1);
BOOST_CHECK_EQUAL (t->stride()[0], 160);
BOOST_CHECK_EQUAL (t->line_size()[0], 150);
BOOST_CHECK (t->data()[0]);
BOOST_CHECK (!t->data()[1]);
BOOST_CHECK (!t->data()[2]);
BOOST_CHECK (!t->data()[3]);
BOOST_CHECK (t->data() != s->data());
BOOST_CHECK (t->data()[0] != s->data()[0]);
BOOST_CHECK (t->line_size() != s->line_size());
BOOST_CHECK (t->line_size()[0] == s->line_size()[0]);
BOOST_CHECK (t->stride() != s->stride());
BOOST_CHECK (t->stride()[0] == s->stride()[0]);
/* assignment operator */
Image* u = new Image (PIX_FMT_YUV422P, libdcp::Size (150, 150), false);
*u = *s;
BOOST_CHECK_EQUAL (u->components(), 1);
BOOST_CHECK_EQUAL (u->stride()[0], 160);
BOOST_CHECK_EQUAL (u->line_size()[0], 150);
BOOST_CHECK (u->data()[0]);
BOOST_CHECK (!u->data()[1]);
BOOST_CHECK (!u->data()[2]);
BOOST_CHECK (!u->data()[3]);
BOOST_CHECK (u->data() != s->data());
BOOST_CHECK (u->data()[0] != s->data()[0]);
BOOST_CHECK (u->line_size() != s->line_size());
BOOST_CHECK (u->line_size()[0] == s->line_size()[0]);
BOOST_CHECK (u->stride() != s->stride());
BOOST_CHECK (u->stride()[0] == s->stride()[0]);
delete s;
delete t;
delete u;
}
BOOST_AUTO_TEST_CASE (compact_image_test)
{
Image* s = new Image (PIX_FMT_RGB24, libdcp::Size (50, 50), false);
BOOST_CHECK_EQUAL (s->components(), 1);
BOOST_CHECK_EQUAL (s->stride()[0], 50 * 3);
BOOST_CHECK_EQUAL (s->line_size()[0], 50 * 3);
BOOST_CHECK (s->data()[0]);
BOOST_CHECK (!s->data()[1]);
BOOST_CHECK (!s->data()[2]);
BOOST_CHECK (!s->data()[3]);
/* copy constructor */
Image* t = new Image (*s);
BOOST_CHECK_EQUAL (t->components(), 1);
BOOST_CHECK_EQUAL (t->stride()[0], 50 * 3);
BOOST_CHECK_EQUAL (t->line_size()[0], 50 * 3);
BOOST_CHECK (t->data()[0]);
BOOST_CHECK (!t->data()[1]);
BOOST_CHECK (!t->data()[2]);
BOOST_CHECK (!t->data()[3]);
BOOST_CHECK (t->data() != s->data());
BOOST_CHECK (t->data()[0] != s->data()[0]);
BOOST_CHECK (t->line_size() != s->line_size());
BOOST_CHECK (t->line_size()[0] == s->line_size()[0]);
BOOST_CHECK (t->stride() != s->stride());
BOOST_CHECK (t->stride()[0] == s->stride()[0]);
/* assignment operator */
Image* u = new Image (PIX_FMT_YUV422P, libdcp::Size (150, 150), true);
*u = *s;
BOOST_CHECK_EQUAL (u->components(), 1);
BOOST_CHECK_EQUAL (u->stride()[0], 50 * 3);
BOOST_CHECK_EQUAL (u->line_size()[0], 50 * 3);
BOOST_CHECK (u->data()[0]);
BOOST_CHECK (!u->data()[1]);
BOOST_CHECK (!u->data()[2]);
BOOST_CHECK (!u->data()[3]);
BOOST_CHECK (u->data() != s->data());
BOOST_CHECK (u->data()[0] != s->data()[0]);
BOOST_CHECK (u->line_size() != s->line_size());
BOOST_CHECK (u->line_size()[0] == s->line_size()[0]);
BOOST_CHECK (u->stride() != s->stride());
BOOST_CHECK (u->stride()[0] == s->stride()[0]);
delete s;
delete t;
delete u;
}
BOOST_AUTO_TEST_CASE (crop_image_test)
{
/* This was to check out a bug with valgrind, and is probably not very useful */
shared_ptr<Image> image (new Image (PIX_FMT_YUV420P, libdcp::Size (16, 16), true));
image->make_black ();
Crop crop;
crop.top = 3;
image->crop (crop, false);
}
/* Test cropping of a YUV 4:2:0 image by 1 pixel, which used to fail because
the U/V copying was not rounded up to the next sample.
*/
BOOST_AUTO_TEST_CASE (crop_image_test2)
{
/* Here's a 1998 x 1080 image which is black */
shared_ptr<Image> image (new Image (PIX_FMT_YUV420P, libdcp::Size (1998, 1080), true));
image->make_black ();
/* Crop it by 1 pixel */
Crop crop;
crop.left = 1;
image = image->crop (crop, true);
/* Convert it back to RGB to make comparison to black easier */
image = image->scale_and_convert_to_rgb (image->size(), Scaler::from_id ("bicubic"), true);
/* Check that its still black after the crop */
uint8_t* p = image->data()[0];
for (int y = 0; y < image->size().height; ++y) {
uint8_t* q = p;
for (int x = 0; x < image->size().width; ++x) {
BOOST_CHECK_EQUAL (*q++, 0);
BOOST_CHECK_EQUAL (*q++, 0);
BOOST_CHECK_EQUAL (*q++, 0);
}
p += image->stride()[0];
}
}
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