49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
///@file
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/// osg::Operation to initialize the OpenVG context used for path rendering
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//
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// Copyright (C) 2012 Thomas Geymayer <tomgey@gmail.com>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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#include "VGInitOperation.hxx"
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#include <vg/openvg.h>
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namespace simgear
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{
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namespace canvas
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{
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//----------------------------------------------------------------------------
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VGInitOperation::VGInitOperation():
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GraphicsOperation("canvas::VGInit", false)
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{
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}
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//----------------------------------------------------------------------------
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void VGInitOperation::operator()(osg::GraphicsContext* context)
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{
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GLint vp[4];
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glGetIntegerv(GL_VIEWPORT, vp);
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// ATTENTION: If using another OpenVG implementation ensure it doesn't
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// change any OpenGL state!
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vgCreateContextSH(vp[2], vp[3]);
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}
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} // namespace canvas
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} // namespace simgear
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