1 files changed, 72 insertions, 0 deletions
diff --git a/src/gui/math3d/qmath3dglobal.h b/src/gui/math3d/qmath3dglobal.h
new file mode 100644
index 0000000..ee5e734
--- /dev/null
+++ b/src/gui/math3d/qmath3dglobal.h
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $TROLLTECH_DUAL_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QMATH3DGLOBAL_H
+#define QMATH3DGLOBAL_H
+
+#include <QtCore/qglobal.h>
+#include <QtGui/qfixedpt.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+// Detect the presence of a fixed-point OpenGL implementation.
+#if defined(QT_OPENGL_ES_1_CL) || defined(QT_NO_GL_FLOAT)
+#ifndef QT_GL_FIXED_PREFERRED
+#define QT_GL_FIXED_PREFERRED 1
+#endif
+#endif
+
+// QT_GL_FIXED_PREFERRED indicates that fixed-point should be
+// preferred over floating-point for operations requiring high performance.
+//
+// qreal is the floating-point type that should be used in
+// user-visible functions.  qrealinner is used internally where
+// values may be stored as either floating-point or fixed-point.
+// qrealinner will typically be the same size as GLfloat or GLfixed.
+#if defined(QT_GL_FIXED_PREFERRED)
+typedef QFixedPt<16> qrealinner;
+#else
+typedef float qrealinner;
+#endif
+
+// Explicit conversion operator, primarily for converting from
+// fixed point back to floating-point.  This is safer than
+// declaring conversion operators in the QFixedPt class.
+template <typename T1, typename T2>
+T1 qt_math3d_convert(T2 v)
+{
+    return T1(v);
+}
+template <>
+inline float qt_math3d_convert< float, QFixedPt<16> >(QFixedPt<16> v)
+{
+    return float(v.toReal());
+}
+template <>
+inline double qt_math3d_convert< double, QFixedPt<16> >(QFixedPt<16> v)
+{
+    return double(v.toReal());
+}
+template <>
+inline int qt_math3d_convert< int, QFixedPt<16> >(QFixedPt<16> v)
+{
+    return v.toInt();
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif