diff options
Diffstat (limited to 'tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp')
-rw-r--r-- | tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp b/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp index 9bd4b75443..35bca58854 100644 --- a/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp +++ b/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp @@ -57,6 +57,8 @@ private slots: void imageConversion(); void loadImage(); + + void gamut(); }; tst_QColorSpace::tst_QColorSpace() @@ -232,6 +234,59 @@ void tst_QColorSpace::loadImage() // Test the iccProfile getter returns the ICC profile from the image // which since we didn't write it, isn't identical to our defaults. QVERIFY(defaultProPhotoRgb.iccProfile() != image.colorSpace().iccProfile()); + + QColorTransform transform = image.colorSpace().transformationToColorSpace(QColorSpace::SRgb); + qreal maxRed = 0; + qreal maxBlue = 0; + qreal maxRed2 = 0; + qreal maxBlue2 = 0; + for (int y = 0; y < image.height(); ++y) { + for (int x = 0; x < image.width(); ++x) { + QColor p = image.pixelColor(x, y); + maxRed = std::max(maxRed, p.redF()); + maxBlue = std::max(maxBlue, p.blueF()); + p = transform.map(p); + maxRed2 = std::max(maxRed2, p.redF()); + maxBlue2 = std::max(maxBlue2, p.blueF()); + + } + } + // ProPhotoRgb can be a lot more red and blue than SRgb can, so it will have lower values. + QVERIFY(maxRed2 > maxRed); + QVERIFY(maxBlue2 > maxBlue); +} + +void tst_QColorSpace::gamut() +{ + QColor black = QColor::fromRgbF(0.0, 0.0, 0.0); + QColor white = QColor::fromRgbF(1.0, 1.0, 1.0); + QColor red = QColor::fromRgbF(1.0, 0.0, 0.0); + QColor green = QColor::fromRgbF(0.0, 1.0, 0.0); + QColor blue = QColor::fromRgbF(0.0, 0.0, 1.0); + + QColorTransform toAdobeRgb = QColorSpace(QColorSpace::SRgb).transformationToColorSpace(QColorSpace::AdobeRgb); + + QColor tblack = toAdobeRgb.map(black); + QColor twhite = toAdobeRgb.map(white); + QColor tred = toAdobeRgb.map(red); + QColor tgreen = toAdobeRgb.map(green); + QColor tblue = toAdobeRgb.map(blue); + + // Black is black + QCOMPARE(tblack, black); + + // This white hasn't changed + QCOMPARE(twhite, white); + + // Adobe's red and blue gamut corners are the same as sRGB's + // So, a color in the red corner, will stay in the red corner + // the same for blue, but not for green. + QVERIFY(tred.greenF() < 0.001); + QVERIFY(tred.blueF() < 0.001); + QVERIFY(tblue.redF() < 0.001); + QVERIFY(tblue.greenF() < 0.001); + QVERIFY(tgreen.redF() > 0.2); + QVERIFY(tgreen.blueF() > 0.2); } QTEST_MAIN(tst_QColorSpace) |