X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=test%2Fimage_test.cc;h=51ad49ebf63479694cd2c4099686a3e630babe7d;hb=259486c47986e8cfe2d81462cb1a60a8d096e1fc;hp=9dd3a1ba4e656484777dc6c7c4ca22e58afa105d;hpb=4699463e19b2a153d64aeb0e00c62be1157bfc1b;p=dcpomatic.git diff --git a/test/image_test.cc b/test/image_test.cc index 9dd3a1ba4..51ad49ebf 100644 --- a/test/image_test.cc +++ b/test/image_test.cc @@ -1,7 +1,34 @@ +/* + Copyright (C) 2012 Carl Hetherington + + 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 +#include +#include "lib/image.h" +#include "lib/scaler.h" + +using std::string; +using std::cout; +using boost::shared_ptr; BOOST_AUTO_TEST_CASE (aligned_image_test) { - SimpleImage* s = new SimpleImage (PIX_FMT_RGB24, libdcp::Size (50, 50), true); + 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); @@ -12,7 +39,7 @@ BOOST_AUTO_TEST_CASE (aligned_image_test) BOOST_CHECK (!s->data()[3]); /* copy constructor */ - SimpleImage* t = new SimpleImage (*s); + 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); @@ -28,7 +55,7 @@ BOOST_AUTO_TEST_CASE (aligned_image_test) BOOST_CHECK (t->stride()[0] == s->stride()[0]); /* assignment operator */ - SimpleImage* u = new SimpleImage (PIX_FMT_YUV422P, libdcp::Size (150, 150), false); + 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); @@ -51,7 +78,7 @@ BOOST_AUTO_TEST_CASE (aligned_image_test) BOOST_AUTO_TEST_CASE (compact_image_test) { - SimpleImage* s = new SimpleImage (PIX_FMT_RGB24, libdcp::Size (50, 50), false); + 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); @@ -61,7 +88,7 @@ BOOST_AUTO_TEST_CASE (compact_image_test) BOOST_CHECK (!s->data()[3]); /* copy constructor */ - SimpleImage* t = new SimpleImage (*s); + 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); @@ -77,7 +104,7 @@ BOOST_AUTO_TEST_CASE (compact_image_test) BOOST_CHECK (t->stride()[0] == s->stride()[0]); /* assignment operator */ - SimpleImage* u = new SimpleImage (PIX_FMT_YUV422P, libdcp::Size (150, 150), true); + 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); @@ -101,9 +128,146 @@ BOOST_AUTO_TEST_CASE (compact_image_test) 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 (new SimpleImage (PIX_FMT_YUV420P, libdcp::Size (16, 16), true)); + shared_ptr 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 (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 (image->size(), Scaler::from_id ("bicubic"), PIX_FMT_RGB24, 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]; + } +} + +static +boost::shared_ptr +read_file (string file) +{ + Magick::Image magick_image (file.c_str ()); + libdcp::Size size (magick_image.columns(), magick_image.rows()); + + boost::shared_ptr image (new Image (PIX_FMT_RGB24, size, true)); + + using namespace MagickCore; + + uint8_t* p = image->data()[0]; + for (int y = 0; y < size.height; ++y) { + uint8_t* q = p; + for (int x = 0; x < size.width; ++x) { + Magick::Color c = magick_image.pixelColor (x, y); + *q++ = c.redQuantum() * 255 / QuantumRange; + *q++ = c.greenQuantum() * 255 / QuantumRange; + *q++ = c.blueQuantum() * 255 / QuantumRange; + } + p += image->stride()[0]; + } + + return image; +} + +static +void +write_file (shared_ptr image, string file) +{ + using namespace MagickCore; + + Magick::Image magick_image (Magick::Geometry (image->size().width, image->size().height), Magick::Color (0, 0, 0)); + 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) { + Magick::Color c (q[0] * QuantumRange / 256, q[1] * QuantumRange / 256, q[2] * QuantumRange / 256); + magick_image.pixelColor (x, y, c); + q += 3; + } + p += image->stride()[0]; + } + + magick_image.write (file.c_str ()); +} + +static +void +crop_scale_window_single (AVPixelFormat in_format, libdcp::Size in_size, Crop crop, libdcp::Size inter_size, libdcp::Size out_size) +{ + /* Set up our test image */ + shared_ptr test (new Image (in_format, in_size, true)); + uint8_t n = 0; + for (int c = 0; c < test->components(); ++c) { + uint8_t* p = test->data()[c]; + for (int y = 0; y < test->lines(c); ++y) { + for (int x = 0; x < test->stride()[c]; ++x) { + *p++ = n++; + } + } + } + + /* Convert using separate methods */ + boost::shared_ptr sep = test->crop (crop, true); + sep = sep->scale (inter_size, Scaler::from_id ("bicubic"), PIX_FMT_RGB24, true); + boost::shared_ptr sep_container (new Image (PIX_FMT_RGB24, out_size, true)); + sep_container->make_black (); + sep_container->copy (sep, Position ((out_size.width - inter_size.width) / 2, (out_size.height - inter_size.height) / 2)); + + /* Convert using the all-in-one method */ + shared_ptr all = test->crop_scale_window (crop, inter_size, out_size, Scaler::from_id ("bicubic"), PIX_FMT_RGB24, true); + + /* Compare */ + BOOST_CHECK_EQUAL (sep_container->size().width, all->size().width); + BOOST_CHECK_EQUAL (sep_container->size().height, all->size().height); + + /* Assuming RGB on these */ + BOOST_CHECK_EQUAL (sep_container->components(), 1); + BOOST_CHECK_EQUAL (all->components(), 1); + + uint8_t* p = sep_container->data()[0]; + uint8_t* q = all->data()[0]; + for (int y = 0; y < all->size().height; ++y) { + uint8_t* pp = p; + uint8_t* qq = q; + for (int x = 0; x < all->size().width * 3; ++x) { + BOOST_CHECK_EQUAL (*pp++, *qq++); + } + p += sep_container->stride()[0]; + q += all->stride()[0]; + } +} + +/** Test Image::crop_scale_window against separate calls to crop/scale/copy */ +BOOST_AUTO_TEST_CASE (crop_scale_window_test) +{ + crop_scale_window_single (AV_PIX_FMT_YUV422P, libdcp::Size (640, 480), Crop (), libdcp::Size (640, 480), libdcp::Size (640, 480)); + crop_scale_window_single (AV_PIX_FMT_YUV422P, libdcp::Size (640, 480), Crop (2, 4, 6, 8), libdcp::Size (640, 480), libdcp::Size (640, 480)); + crop_scale_window_single (AV_PIX_FMT_YUV422P, libdcp::Size (640, 480), Crop (2, 4, 6, 8), libdcp::Size (1920, 1080), libdcp::Size (1998, 1080)); + crop_scale_window_single (AV_PIX_FMT_YUV422P, libdcp::Size (640, 480), Crop (1, 4, 6, 8), libdcp::Size (1920, 1080), libdcp::Size (1998, 1080)); + crop_scale_window_single (AV_PIX_FMT_YUV420P, libdcp::Size (640, 480), Crop (16, 16, 0, 0), libdcp::Size (1920, 1080), libdcp::Size (1998, 1080)); + crop_scale_window_single (AV_PIX_FMT_YUV420P, libdcp::Size (640, 480), Crop (16, 3, 3, 0), libdcp::Size (1920, 1080), libdcp::Size (1998, 1080)); + crop_scale_window_single (AV_PIX_FMT_RGB24, libdcp::Size (1000, 800), Crop (0, 0, 0, 0), libdcp::Size (1920, 1080), libdcp::Size (1998, 1080)); + crop_scale_window_single (AV_PIX_FMT_RGB24, libdcp::Size (1000, 800), Crop (55, 0, 1, 9), libdcp::Size (1920, 1080), libdcp::Size (1998, 1080)); +}