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Adding unit tests for spherical project effect, using 2 PNG assets

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Jonathan Thomas
2025-05-21 18:25:22 -05:00
parent f93d7861f2
commit ec890fe74d
4 changed files with 147 additions and 0 deletions
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tests/CMakeLists.txt
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@@ -45,6 +45,7 @@ set(OPENSHOT_TESTS
# Effects
ChromaKey
Crop
SphericalEffect
)
# ImageMagick related test files

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tests/SphericalEffect.cpp Normal file
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/**
* @file
* @brief Unit tests for openshot::SphericalProjection effect using PNG fixtures
* @author Jonathan Thomas <jonathan@openshot.org>
*
* @ref License
*/
// Copyright (c) 2008-2025 OpenShot Studios, LLC
//
// SPDX-License-Identifier: LGPL-3.0-or-later
#include <memory>
#include <QImage>
#include <QColor>
#include "Frame.h"
#include "effects/SphericalProjection.h"
#include "openshot_catch.h"
using namespace openshot;
// allow Catch2 to print QColor on failure
static std::ostream& operator<<(std::ostream& os, QColor const& c)
{
os << "QColor(" << c.red() << "," << c.green()
<< "," << c.blue() << "," << c.alpha() << ")";
return os;
}
// load a PNG into a Frame
static std::shared_ptr<Frame> loadFrame(const char* filename)
{
QImage img(QString(TEST_MEDIA_PATH) + filename);
img = img.convertToFormat(QImage::Format_ARGB32);
auto f = std::make_shared<Frame>();
*f->GetImage() = img;
return f;
}
// apply effect and sample center pixel
static QColor centerPixel(SphericalProjection& e,
std::shared_ptr<Frame> f)
{
auto img = e.GetFrame(f, 1)->GetImage();
int cx = img->width() / 2;
int cy = img->height() / 2;
return img->pixelColor(cx, cy);
}
TEST_CASE("sphere mode default and invert", "[effect][spherical]")
{
SphericalProjection e;
e.projection_mode = 0;
e.yaw = Keyframe(45.0);
{
auto f0 = loadFrame("eq_sphere.png");
e.invert = 0;
e.interpolation = 0;
// eq_sphere.png has green stripe at center
CHECK(centerPixel(e, f0) == QColor(255,0,0,255));
}
{
auto f1 = loadFrame("eq_sphere.png");
e.yaw = Keyframe(-45.0);
e.invert = 0;
e.interpolation = 1;
// invert flips view 180°, center maps to blue stripe
CHECK(centerPixel(e, f1) == QColor(0,0,255,255));
}
{
auto f1 = loadFrame("eq_sphere.png");
e.yaw = Keyframe(0.0);
e.invert = 1;
e.interpolation = 0;
// invert flips view 180°, center maps to blue stripe
CHECK(centerPixel(e, f1) == QColor(0,255,0,255));
}
}
TEST_CASE("hemisphere mode default and invert", "[effect][spherical]")
{
SphericalProjection e;
e.projection_mode = 1;
{
auto f0 = loadFrame("eq_sphere.png");
e.yaw = Keyframe(45.0);
e.invert = 0;
e.interpolation = 0;
// hemisphere on full pano still shows green at center
CHECK(centerPixel(e, f0) == QColor(255,0,0,255));
}
{
auto f1 = loadFrame("eq_sphere.png");
e.yaw = Keyframe(-45.0);
e.invert = 0;
e.interpolation = 1;
// invert=1 flips center to blue
CHECK(centerPixel(e, f1) == QColor(0,0,255,255));
}
{
auto f1 = loadFrame("eq_sphere.png");
e.yaw = Keyframe(-180.0);
e.invert = 0;
e.interpolation = 0;
// invert=1 flips center to blue
CHECK(centerPixel(e, f1) == QColor(0,255,0,255));
}
}
TEST_CASE("fisheye mode default and invert", "[effect][spherical]")
{
SphericalProjection e;
e.projection_mode = 2;
e.fov = Keyframe(180.0);
{
auto f0 = loadFrame("fisheye.png");
e.invert = 0;
e.interpolation = 0;
// circular mask center remains white
CHECK(centerPixel(e, f0) == QColor(255,255,255,255));
}
{
auto f1 = loadFrame("fisheye.png");
e.invert = 1;
e.interpolation = 1;
e.fov = Keyframe(90.0);
// invert has no effect on center
CHECK(centerPixel(e, f1) == QColor(255,255,255,255));
}
}
TEST_CASE("fisheye mode yaw has no effect at center", "[effect][spherical]")
{
SphericalProjection e;
e.projection_mode = 2;
e.interpolation = 0;
e.fov = Keyframe(180.0);
e.invert = 0;
auto f = loadFrame("fisheye.png");
e.yaw = Keyframe(45.0);
CHECK(centerPixel(e, f) == QColor(255,255,255,255));
}