From a8a00f646b57b5a7ca2cf8603311888ff6ff09f8 Mon Sep 17 00:00:00 2001 From: Paul Olav Tvete Date: Tue, 13 Jan 2015 12:45:28 +0100 Subject: Turn off font hinting when we do high DPI scaling Font hinting depends on the specific pixel size, and ends up very wrong when the painter is scaled. Change-Id: I2007ec7e7ad8d52358d76e88e030ea4df7e91455 Task-number: QTBUG-43809 Reviewed-by: Eskil Abrahamsen Blomfeldt --- src/plugins/platforms/xcb/qxcbscreen.cpp | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/plugins/platforms/xcb/qxcbscreen.cpp') diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp index 6559a0bdba..7136455754 100644 --- a/src/plugins/platforms/xcb/qxcbscreen.cpp +++ b/src/plugins/platforms/xcb/qxcbscreen.cpp @@ -62,6 +62,7 @@ QXcbScreen::QXcbScreen(QXcbConnection *connection, xcb_screen_t *scr, , m_forcedDpi(-1) , m_devicePixelRatio(1) , m_hintStyle(QFontEngine::HintStyle(-1)) + , m_noFontHinting(false) , m_subpixelType(QFontEngine::SubpixelAntialiasingType(-1)) , m_antialiasingEnabled(-1) , m_xSettings(0) @@ -86,6 +87,12 @@ QXcbScreen::QXcbScreen(QXcbConnection *connection, xcb_screen_t *scr, readXResources(); + // disable font hinting when we do UI scaling + static bool dpr_scaling_enabled = (qgetenv("QT_DEVICE_PIXEL_RATIO").toInt() > 1 + || qgetenv("QT_DEVICE_PIXEL_RATIO").toLower() == "auto"); + if (dpr_scaling_enabled) + m_noFontHinting = true; + #ifdef Q_XCB_DEBUG qDebug(); qDebug("Screen output %s of xcb screen %d:", m_outputName.toUtf8().constData(), m_number); -- cgit v1.2.3