render_system.h
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00001 /*
00002  * Copyright (c) 2011, Willow Garage, Inc.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  *     * Redistributions of source code must retain the above copyright
00009  *       notice, this list of conditions and the following disclaimer.
00010  *     * Redistributions in binary form must reproduce the above copyright
00011  *       notice, this list of conditions and the following disclaimer in the
00012  *       documentation and/or other materials provided with the distribution.
00013  *     * Neither the name of the Willow Garage, Inc. nor the names of its
00014  *       contributors may be used to endorse or promote products derived from
00015  *       this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00021  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00027  * POSSIBILITY OF SUCH DAMAGE.
00028  */
00029 #ifndef RENDER_SYSTEM_H
00030 #define RENDER_SYSTEM_H
00031 
00032 #include <OgreRoot.h>
00033 #include <stdint.h>
00034 
00035 namespace Ogre
00036 {
00037   class OverlaySystem;
00038   class SceneManager;
00039 }
00040 
00041 namespace rviz
00042 {
00043 
00044 class RenderSystem
00045 {
00046 public:
00047   static RenderSystem* get();
00048 
00049   Ogre::RenderWindow* makeRenderWindow( intptr_t window_id, unsigned int width, unsigned int height, double pixel_ratio = 1.0 );
00050 
00051   Ogre::Root* root() { return ogre_root_; }
00052 
00053   // Prepare a scene_manager to render overlays.
00054   // Needed for Ogre >= 1.9 to use fonts; does nothing for prior versions.
00055   void prepareOverlays(Ogre::SceneManager* scene_manager);
00056 
00057   // @brief return OpenGl Version as integer, e.g. 320 for OpenGl 3.20
00058   int getGlVersion() { return gl_version_; }
00059 
00060   // @brief return GLSL Version as integer, e.g. 150 for GLSL 1.50
00061   int getGlslVersion() { return glsl_version_; }
00062 
00063   // @brief Disables the use of Anti Aliasing
00064   static void disableAntiAliasing();
00065 
00066   // @brief Force to use the provided OpenGL version on startup
00067   static void forceGlVersion( int version );
00068 
00069   // @brief Disable stereo rendering even if supported in HW.
00070   static void forceNoStereo();
00071 
00072   // @brief True if we can render stereo on this device.
00073   bool isStereoSupported() { return stereo_supported_; }
00074 
00075 private:
00076   RenderSystem();
00077   void setupDummyWindowId();
00078   void loadOgrePlugins();
00079 
00080   // helper for makeRenderWindow()
00081   Ogre::RenderWindow* tryMakeRenderWindow(const std::string& name,
00082                                           unsigned int width,
00083                                           unsigned int height,
00084                                           const Ogre::NameValuePairList* params,
00085                                           int max_attempts);
00086 
00087   // Find and configure the render system.
00088   void setupRenderSystem();
00089   void setupResources();
00090   void detectGlVersion();
00091 
00092   static RenderSystem* instance_;
00093 
00094   // ID for a dummy window of size 1x1, used to keep Ogre happy.
00095   unsigned long dummy_window_id_;
00096 
00097   Ogre::Root* ogre_root_;
00098   Ogre::OverlaySystem* ogre_overlay_system_;
00099 
00100   int gl_version_;
00101   int glsl_version_;
00102   static bool use_anti_aliasing_;
00103   static int force_gl_version_;
00104   bool stereo_supported_;
00105   static bool force_no_stereo_;
00106 };
00107 
00108 } // end namespace rviz
00109 
00110 #endif // RENDER_SYSTEM_H


rviz
Author(s): Dave Hershberger, David Gossow, Josh Faust
autogenerated on Tue Oct 3 2017 03:19:31