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28 | |
29 | #include "visualtestutil.h" |
30 | |
31 | #include <QtQuick/QQuickItem> |
32 | #include <QtCore/QDebug> |
33 | |
34 | bool QQuickVisualTestUtil::delegateVisible(QQuickItem *item) |
35 | { |
36 | return item->isVisible() && !QQuickItemPrivate::get(item)->culled; |
37 | } |
38 | |
39 | QQuickItem *QQuickVisualTestUtil::findVisibleChild(QQuickItem *parent, const QString &objectName) |
40 | { |
41 | QQuickItem *item = 0; |
42 | QList<QQuickItem*> items = parent->findChildren<QQuickItem*>(aName: objectName); |
43 | for (int i = 0; i < items.count(); ++i) { |
44 | if (items.at(i)->isVisible() && !QQuickItemPrivate::get(item: items.at(i))->culled) { |
45 | item = items.at(i); |
46 | break; |
47 | } |
48 | } |
49 | return item; |
50 | } |
51 | |
52 | void QQuickVisualTestUtil::dumpTree(QQuickItem *parent, int depth) |
53 | { |
54 | static QString padding(" " ); |
55 | for (int i = 0; i < parent->childItems().count(); ++i) { |
56 | QQuickItem *item = qobject_cast<QQuickItem*>(object: parent->childItems().at(i)); |
57 | if (!item) |
58 | continue; |
59 | qDebug() << padding.left(n: depth*2) << item; |
60 | dumpTree(parent: item, depth: depth+1); |
61 | } |
62 | } |
63 | |
64 | // A custom compare function to avoid issues such as: |
65 | // When running on native Nvidia graphics cards on linux, the |
66 | // distance field glyph pixels have a measurable, but not visible |
67 | // pixel error. This was GT-216 with the ubuntu "nvidia-319" driver package. |
68 | // llvmpipe does not show the same issue. |
69 | |
70 | bool QQuickVisualTestUtil::compareImages(const QImage &ia, const QImage &ib, QString *errorMessage) |
71 | { |
72 | if (ia.size() != ib.size()) { |
73 | QDebug(errorMessage) << "Images are of different size:" << ia.size() << ib.size() |
74 | << "DPR:" << ia.devicePixelRatio() << ib.devicePixelRatio(); |
75 | return false; |
76 | } |
77 | if (ia.format() != ib.format()) { |
78 | QDebug(errorMessage) << "Images are of different formats:" << ia.format() << ib.format(); |
79 | return false; |
80 | } |
81 | |
82 | int w = ia.width(); |
83 | int h = ia.height(); |
84 | const int tolerance = 5; |
85 | for (int y=0; y<h; ++y) { |
86 | const uint *as= (const uint *) ia.constScanLine(y); |
87 | const uint *bs= (const uint *) ib.constScanLine(y); |
88 | for (int x=0; x<w; ++x) { |
89 | uint a = as[x]; |
90 | uint b = bs[x]; |
91 | |
92 | // No tolerance for error in the alpha. |
93 | if ((a & 0xff000000) != (b & 0xff000000) |
94 | || qAbs(t: qRed(rgb: a) - qRed(rgb: b)) > tolerance |
95 | || qAbs(t: qRed(rgb: a) - qRed(rgb: b)) > tolerance |
96 | || qAbs(t: qRed(rgb: a) - qRed(rgb: b)) > tolerance) { |
97 | QDebug(errorMessage) << "Mismatch at:" << x << y << ':' |
98 | << hex << showbase << a << b; |
99 | return false; |
100 | } |
101 | } |
102 | } |
103 | return true; |
104 | } |
105 | |