diff options
Diffstat (limited to 'src/Runtime/ogl-runtime/src/platformspecific/linux/libs/nv_math/nv_math.cpp')
m--------- | src/Runtime/ogl-runtime | 0 | ||||
-rw-r--r-- | src/Runtime/ogl-runtime/src/platformspecific/linux/libs/nv_math/nv_math.cpp | 64 |
2 files changed, 0 insertions, 64 deletions
diff --git a/src/Runtime/ogl-runtime b/src/Runtime/ogl-runtime new file mode 160000 +Subproject 2025912174c4cf99270b7439ec3b021e1d089ae diff --git a/src/Runtime/ogl-runtime/src/platformspecific/linux/libs/nv_math/nv_math.cpp b/src/Runtime/ogl-runtime/src/platformspecific/linux/libs/nv_math/nv_math.cpp deleted file mode 100644 index b83cb39e..00000000 --- a/src/Runtime/ogl-runtime/src/platformspecific/linux/libs/nv_math/nv_math.cpp +++ /dev/null @@ -1,64 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009-2011 NVIDIA Corporation. -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of Qt 3D Studio. -** -** $QT_BEGIN_LICENSE:GPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3 or (at your option) any later version -** approved by the KDE Free Qt Foundation. The licenses are as published by -** the Free Software Foundation and appearing in the file LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "nv_math.h" - -static const double a = 16807.0; -static const double m = 2147483647.0; - -static double nextSeed(double seed) -{ - double t = a * seed; - return t - m * (double)((int)(t / m)); -} - -GLfloat NvRandf() -{ - static double seed = 1.0; - seed = nextSeed(seed); - return (GLfloat)(seed * (1 / m)); -} - -GLfloat NvClockDiffInSecs(long long int newTime, long long int oldTime) -{ - // kdGetTimeUST is never supposed to decrease (i.e. that - // means it can't wrap, either. IIRC, it will wrap in - // 593 years). So we ignore that option... - - // Used for frame-to-frame diffs, this will fit in 32b - // as long as the times are < ~4.3s apart - long long int diffTime = newTime - oldTime; - - // Need to find a better way to do this. - // However, I believe we will be uSec precise (not run - // out of mantissa bits for uSecs) as long as the diff - // is < ~16s (1e-6 * (2^24)) - return ((GLfloat)diffTime) / 1.0e9f; -} |