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 ); 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 Force to use the provided OpenGL version on startup 00064 static void forceGlVersion( int version ); 00065 00066 // @brief Disable stereo rendering even if supported in HW. 00067 static void forceNoStereo(); 00068 00069 // @brief True if we can render stereo on this device. 00070 bool isStereoSupported() { return stereo_supported_; } 00071 00072 private: 00073 RenderSystem(); 00074 void setupDummyWindowId(); 00075 void loadOgrePlugins(); 00076 00077 // helper for makeRenderWindow() 00078 Ogre::RenderWindow* tryMakeRenderWindow(const std::string& name, 00079 unsigned int width, 00080 unsigned int height, 00081 const Ogre::NameValuePairList* params, 00082 int max_attempts); 00083 00084 // Find and configure the render system. 00085 void setupRenderSystem(); 00086 void setupResources(); 00087 void detectGlVersion(); 00088 00089 static RenderSystem* instance_; 00090 00091 // ID for a dummy window of size 1x1, used to keep Ogre happy. 00092 unsigned long dummy_window_id_; 00093 00094 Ogre::Root* ogre_root_; 00095 Ogre::OverlaySystem* ogre_overlay_system_; 00096 00097 int gl_version_; 00098 int glsl_version_; 00099 static int force_gl_version_; 00100 bool stereo_supported_; 00101 static bool force_no_stereo_; 00102 }; 00103 00104 } // end namespace rviz 00105 00106 #endif // RENDER_SYSTEM_H