+/*
+ Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
+
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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.
+
+ DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+/** @file test/image_test.cc
+ * @brief Tests of the Image class.
+ *
+ * @see test/make_black_test.cc, test/pixel_formats_test.cc
+ */
+
+#include <boost/test/unit_test.hpp>
+#include <Magick++.h>
+#include "lib/image.h"
+#include <iostream>
+
+using std::string;
+using std::list;
+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);
- BOOST_CHECK_EQUAL (s->components(), 1);
+ Image* s = new Image (AV_PIX_FMT_RGB24, dcp::Size (50, 50), true);
+ BOOST_CHECK_EQUAL (s->planes(), 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()[3]);
/* copy constructor */
- SimpleImage* t = new SimpleImage (*s);
- BOOST_CHECK_EQUAL (t->components(), 1);
+ Image* t = new Image (*s);
+ BOOST_CHECK_EQUAL (t->planes(), 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() != 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_EQUAL (t->line_size()[0], s->line_size()[0]);
BOOST_CHECK (t->stride() != s->stride());
- BOOST_CHECK (t->stride()[0] == s->stride()[0]);
+ BOOST_CHECK_EQUAL (t->stride()[0], s->stride()[0]);
/* assignment operator */
- SimpleImage* u = new SimpleImage (PIX_FMT_YUV422P, libdcp::Size (150, 150), false);
+ Image* u = new Image (AV_PIX_FMT_YUV422P, dcp::Size (150, 150), false);
*u = *s;
- BOOST_CHECK_EQUAL (u->components(), 1);
+ BOOST_CHECK_EQUAL (u->planes(), 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() != 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_EQUAL (u->line_size()[0], s->line_size()[0]);
BOOST_CHECK (u->stride() != s->stride());
- BOOST_CHECK (u->stride()[0] == s->stride()[0]);
+ BOOST_CHECK_EQUAL (u->stride()[0], s->stride()[0]);
delete s;
delete t;
BOOST_AUTO_TEST_CASE (compact_image_test)
{
- SimpleImage* s = new SimpleImage (PIX_FMT_RGB24, libdcp::Size (50, 50), false);
- BOOST_CHECK_EQUAL (s->components(), 1);
+ Image* s = new Image (AV_PIX_FMT_RGB24, dcp::Size (50, 50), false);
+ BOOST_CHECK_EQUAL (s->planes(), 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()[3]);
/* copy constructor */
- SimpleImage* t = new SimpleImage (*s);
- BOOST_CHECK_EQUAL (t->components(), 1);
+ Image* t = new Image (*s);
+ BOOST_CHECK_EQUAL (t->planes(), 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() != 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_EQUAL (t->line_size()[0], s->line_size()[0]);
BOOST_CHECK (t->stride() != s->stride());
- BOOST_CHECK (t->stride()[0] == s->stride()[0]);
+ BOOST_CHECK_EQUAL (t->stride()[0], s->stride()[0]);
/* assignment operator */
- SimpleImage* u = new SimpleImage (PIX_FMT_YUV422P, libdcp::Size (150, 150), true);
+ Image* u = new Image (AV_PIX_FMT_YUV422P, dcp::Size (150, 150), true);
*u = *s;
- BOOST_CHECK_EQUAL (u->components(), 1);
+ BOOST_CHECK_EQUAL (u->planes(), 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() != 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_EQUAL (u->line_size()[0], s->line_size()[0]);
BOOST_CHECK (u->stride() != s->stride());
- BOOST_CHECK (u->stride()[0] == s->stride()[0]);
+ BOOST_CHECK_EQUAL (u->stride()[0], s->stride()[0]);
delete s;
delete t;
delete u;
}
+
+/** Test Image::alpha_blend */
+BOOST_AUTO_TEST_CASE (alpha_blend_test)
+{
+ int const stride = 48 * 4;
+
+ shared_ptr<Image> A (new Image (AV_PIX_FMT_RGBA, dcp::Size (48, 48), false));
+ A->make_black ();
+ uint8_t* a = A->data()[0];
+
+ for (int y = 0; y < 48; ++y) {
+ uint8_t* p = a + y * stride;
+ for (int x = 0; x < 16; ++x) {
+ p[x * 4] = 255;
+ p[(x + 16) * 4 + 1] = 255;
+ p[(x + 32) * 4 + 2] = 255;
+ }
+ }
+
+ shared_ptr<Image> B (new Image (AV_PIX_FMT_RGBA, dcp::Size (48, 48), true));
+ B->make_transparent ();
+ uint8_t* b = B->data()[0];
+
+ for (int y = 32; y < 48; ++y) {
+ uint8_t* p = b + y * stride;
+ for (int x = 0; x < 48; ++x) {
+ p[x * 4] = 255;
+ p[x * 4 + 1] = 255;
+ p[x * 4 + 2] = 255;
+ p[x * 4 + 3] = 255;
+ }
+ }
+
+ A->alpha_blend (B, Position<int> (0, 0));
+
+ for (int y = 0; y < 32; ++y) {
+ uint8_t* p = a + y * stride;
+ for (int x = 0; x < 16; ++x) {
+ BOOST_CHECK_EQUAL (p[x * 4], 255);
+ BOOST_CHECK_EQUAL (p[(x + 16) * 4 + 1], 255);
+ BOOST_CHECK_EQUAL (p[(x + 32) * 4 + 2], 255);
+ }
+ }
+
+ for (int y = 32; y < 48; ++y) {
+ uint8_t* p = a + y * stride;
+ for (int x = 0; x < 48; ++x) {
+ BOOST_CHECK_EQUAL (p[x * 4], 255);
+ BOOST_CHECK_EQUAL (p[x * 4 + 1], 255);
+ BOOST_CHECK_EQUAL (p[x * 4 + 2], 255);
+ BOOST_CHECK_EQUAL (p[x * 4 + 3], 255);
+ }
+ }
+}
+
+/** Test merge (list<PositionImage>) with a single image */
+BOOST_AUTO_TEST_CASE (merge_test1)
+{
+ int const stride = 48 * 4;
+
+ shared_ptr<Image> A (new Image (AV_PIX_FMT_RGBA, dcp::Size (48, 48), false));
+ A->make_transparent ();
+ uint8_t* a = A->data()[0];
+
+ for (int y = 0; y < 48; ++y) {
+ uint8_t* p = a + y * stride;
+ for (int x = 0; x < 16; ++x) {
+ /* red */
+ p[x * 4] = 255;
+ /* opaque */
+ p[x * 4 + 3] = 255;
+ }
+ }
+
+ list<PositionImage> all;
+ all.push_back (PositionImage (A, Position<int> (0, 0)));
+ PositionImage merged = merge (all);
+
+ BOOST_CHECK (merged.position == Position<int> (0, 0));
+ BOOST_CHECK_EQUAL (memcmp (merged.image->data()[0], A->data()[0], stride * 48), 0);
+}
+
+/** Test merge (list<PositionImage>) with two images */
+BOOST_AUTO_TEST_CASE (merge_test2)
+{
+ shared_ptr<Image> A (new Image (AV_PIX_FMT_RGBA, dcp::Size (48, 1), false));
+ A->make_transparent ();
+ uint8_t* a = A->data()[0];
+ for (int x = 0; x < 16; ++x) {
+ /* red */
+ a[x * 4] = 255;
+ /* opaque */
+ a[x * 4 + 3] = 255;
+ }
+
+ shared_ptr<Image> B (new Image (AV_PIX_FMT_RGBA, dcp::Size (48, 1), false));
+ B->make_transparent ();
+ uint8_t* b = B->data()[0];
+ for (int x = 0; x < 16; ++x) {
+ /* blue */
+ b[(x + 32) * 4 + 2] = 255;
+ /* opaque */
+ b[(x + 32) * 4 + 3] = 255;
+ }
+
+ list<PositionImage> all;
+ all.push_back (PositionImage (A, Position<int> (0, 0)));
+ all.push_back (PositionImage (B, Position<int> (0, 0)));
+ PositionImage merged = merge (all);
+
+ BOOST_CHECK (merged.position == Position<int> (0, 0));
+
+ uint8_t* m = merged.image->data()[0];
+
+ for (int x = 0; x < 16; ++x) {
+ BOOST_CHECK_EQUAL (m[x * 4], 255);
+ BOOST_CHECK_EQUAL (m[x * 4 + 3], 255);
+ BOOST_CHECK_EQUAL (m[(x + 16) * 4 + 3], 0);
+ BOOST_CHECK_EQUAL (m[(x + 32) * 4 + 2], 255);
+ BOOST_CHECK_EQUAL (m[(x + 32) * 4 + 3], 255);
+ }
+}
projects / dcpomatic.git / blobdiff