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src/java.desktop/unix/native/common/awt/systemscale/systemScale.c
53 строки
2 KB
Sergey Bylokhov
8239894: Xserver crashes when the wrong high refresh rate is used
22 янв 2021, 03:21
22 янв 2021, 03:21
a7c2ebc
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/* * Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ #include "systemScale.h" #include <stdlib.h> static int getScale(const char *name) { char *uiScale = getenv(name); if (uiScale != NULL) { double scale = strtod(uiScale, NULL); if (scale < 1) { return -1; } return (int) scale; } return -1; } double getNativeScaleFactor() { static int scale = -2.0; if (scale == -2) { scale = getScale("J2D_UISCALE"); } if (scale > 0) { return scale; } return getScale("GDK_SCALE"); }