91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
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// Owner Drawn Gauge helper class
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//
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// Written by Harald JOHNSEN, started May 2005.
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//
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// Copyright (C) 2005 Harald JOHNSEN - hjohnsen@evc.net
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// 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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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
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//
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//
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#ifndef _OD_GAUGE_HXX
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#define _OD_GAUGE_HXX
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#include <plib/ssg.h>
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#include <simgear/structure/subsystem_mgr.hxx>
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class RenderTexture;
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/**
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* Owner Drawn Gauge helper class.
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*/
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class FGODGauge : public SGSubsystem {
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public:
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FGODGauge ( SGPropertyNode *node );
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FGODGauge();
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~FGODGauge();
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virtual void init ();
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virtual void update (double dt);
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/**
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* Start the rendering of the RTT context.
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* @param viewSize size of the destination texture
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*/
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void beginCapture(int viewSize);
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/**
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* Start the rendering of the RTT context.
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*/
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void beginCapture(void);
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/**
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* Clear the background.
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*/
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void Clear(void);
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/**
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* Finish rendering and save the buffer to a texture.
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* @param texID name of a gl texture
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*/
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void endCapture(GLuint texID);
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/**
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* Set the size of the destination texture.
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* @param viewSize size of the destination texture
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*/
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void setSize(int viewSize);
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/**
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* Say if we can render to a texture.
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* @return true if rtt is available
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*/
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bool serviceable(void);
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/**
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* Replace an opengl texture name inside the aircraft scene graph.
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* This is to replace a static texture by a dynamic one
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* @param name texture filename
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* @param new_texture dynamic texture to replace the old one
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*/
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void set_texture(const char * name, GLuint new_texture);
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private:
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int textureWH;
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RenderTexture *rt;
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bool rtAvailable;
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void allocRT(void);
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void set2D(void);
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void set3D(void);
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};
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#endif // _OD_GAUGE_HXX
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