diff options
Diffstat (limited to 'tests/auto/gui/painting/qcolor/tst_qcolor.cpp')
| -rw-r--r-- | tests/auto/gui/painting/qcolor/tst_qcolor.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tests/auto/gui/painting/qcolor/tst_qcolor.cpp b/tests/auto/gui/painting/qcolor/tst_qcolor.cpp index c34b1639cc..4fafbf9827 100644 --- a/tests/auto/gui/painting/qcolor/tst_qcolor.cpp +++ b/tests/auto/gui/painting/qcolor/tst_qcolor.cpp @@ -38,6 +38,7 @@ #include <qcolor.h> #include <qdebug.h> +#include <private/qdrawingprimitive_sse2_p.h> class tst_QColor : public QObject { @@ -103,6 +104,7 @@ private slots: void achromaticHslHue(); void premultiply(); + void unpremultiply_sse4(); #ifdef Q_DEAD_CODE_FROM_QT4_X11 void setallowX11ColorNames(); @@ -1445,5 +1447,22 @@ void tst_QColor::premultiply() } } +void tst_QColor::unpremultiply_sse4() +{ + // Tests that qUnpremultiply_sse4 returns the same as qUnpremultiply. +#if QT_COMPILER_SUPPORTS_HERE(SSE4_1) + if (qCpuHasFeature(SSE4_1)) { + for (uint a = 0; a < 256; a++) { + for (uint c = 0; c <= a; c++) { + QRgb p = qRgba(c, a-c, c, a); + QCOMPARE(qUnpremultiply(p), qUnpremultiply_sse4(p)); + } + } + return; + } +#endif + QSKIP("SSE4 not supported on this CPU."); +} + QTEST_MAIN(tst_QColor) #include "tst_qcolor.moc" |