/* ----------------------------------------------------------------------------- This source file is part of OGRE (Object-oriented Graphics Rendering Engine) For the latest info, see http://www.ogre3d.org Copyright (c) 2000-2009 Torus Knot Software Ltd Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ----------------------------------------------------------------------------- */ #include "OgreGTKGLSupport.h" #include "OgreGTKWindow.h" #include "OgreLogManager.h" #include "OgreException.h" #include "OgreStringConverter.h" using namespace Ogre; template<> GTKGLSupport* Singleton::ms_Singleton = 0; GTKGLSupport* GTKGLSupport::getSingletonPtr(void) { return ms_Singleton; } GTKGLSupport& GTKGLSupport::getSingleton(void) { assert( ms_Singleton ); return ( *ms_Singleton ); } GTKGLSupport::GTKGLSupport() : _kit(0, NULL), _context_ref(0) { Gtk::GL::init(0, NULL); _main_context = 0; _main_window = 0; //_ogre_widget = 0; } void GTKGLSupport::addConfig() { ConfigOption optFullScreen; ConfigOption optVideoMode; // FS setting possibilities optFullScreen.name = "Full Screen"; optFullScreen.possibleValues.push_back("Yes"); optFullScreen.possibleValues.push_back("No"); optFullScreen.currentValue = "No"; optFullScreen.immutable = false; // Video mode possibilities // XXX Actually do this optVideoMode.name = "Video Mode"; optVideoMode.immutable = false; optVideoMode.possibleValues.push_back("640 x 480"); optVideoMode.possibleValues.push_back("800 x 600"); optVideoMode.possibleValues.push_back("1024 x 768"); optVideoMode.possibleValues.push_back("1280 x 1024"); optVideoMode.currentValue = "800 x 600"; mOptions[optFullScreen.name] = optFullScreen; mOptions[optVideoMode.name] = optVideoMode; } String GTKGLSupport::validateConfig() { return String(""); } RenderWindow* GTKGLSupport::createWindow(bool autoCreateWindow, GLRenderSystem* renderSystem, const String& windowTitle) { if (autoCreateWindow) { ConfigOptionMap::iterator opt = mOptions.find("Full Screen"); if (opt == mOptions.end()) OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR, "Can't find full screen options!", "GTKGLSupport::createWindow"); bool fullscreen = (opt->second.currentValue == "Yes"); opt = mOptions.find("Video Mode"); if (opt == mOptions.end()) OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR, "Can't find video mode options!", "GTKGLSupport::createWindow"); String val = opt->second.currentValue; String::size_type pos = val.find('x'); if (pos == String::npos) OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR, "Invalid Video Mode provided", "GTKGLSupport::createWindow"); unsigned int w = StringConverter::parseUnsignedInt(val.substr(0, pos)); unsigned int h = StringConverter::parseUnsignedInt(val.substr(pos + 1)); return renderSystem->createRenderWindow(windowTitle, w, h, 32, fullscreen); } else { // XXX What is the else? return NULL; } } RenderWindow* GTKGLSupport::newWindow(const String& name, unsigned int width, unsigned int height, unsigned int colourDepth, bool fullScreen, int left, int top, bool depthBuffer, RenderWindow* parentWindowHandle, bool vsync) { GTKWindow* window = new GTKWindow(); window->create(name, width, height, colourDepth, fullScreen, left, top, depthBuffer, parentWindowHandle); //if(!_ogre_widget) // _ogre_widget = window->get_ogre_widget(); // Copy some important information for future reference, for example // for when the context is needed if(!_main_context) _main_context = window->get_ogre_widget()->get_gl_context(); if(!_main_window) _main_window = window->get_ogre_widget()->get_gl_window(); return window; } void GTKGLSupport::start() { LogManager::getSingleton().logMessage( "******************************\n" "*** Starting GTK Subsystem ***\n" "******************************"); } void GTKGLSupport::stop() { LogManager::getSingleton().logMessage( "******************************\n" "*** Stopping GTK Subsystem ***\n" "******************************"); } void GTKGLSupport::begin_context(RenderTarget *_target) { // Support nested contexts, in which case.. nothing happens ++_context_ref; if (_context_ref == 1) { if(_target) { // Begin a specific context OGREWidget *_ogre_widget = static_cast(_target)->get_ogre_widget(); _ogre_widget->get_gl_window()->gl_begin(_ogre_widget->get_gl_context()); } else { // Begin a generic main context _main_window->gl_begin(_main_context); } } } void GTKGLSupport::end_context() { --_context_ref; if(_context_ref < 0) OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR, "Too many contexts destroyed!", "GTKGLSupport::end_context"); if (_context_ref == 0) { // XX is this enough? (_main_window might not be the current window, // but we can never be sure the previous rendering window // even still exists) _main_window->gl_end(); } } void GTKGLSupport::initialiseExtensions(void) { // XXX anythign to actually do here? } bool GTKGLSupport::checkMinGLVersion(const String& v) const { int major, minor; Gdk::GL::query_version(major, minor); std::string::size_type pos = v.find("."); int cmaj = atoi(v.substr(0, pos).c_str()); int cmin = atoi(v.substr(pos + 1).c_str()); return ( (major >= cmaj) && (minor >= cmin) ); } bool GTKGLSupport::checkExtension(const String& ext) const { // query_gl_extension needs an active context, doesn't matter which one if (_context_ref == 0) _main_window->gl_begin(_main_context); bool result = Gdk::GL::query_gl_extension(ext.c_str()); if (_context_ref == 0) _main_window->gl_end(); } void* GTKGLSupport::getProcAddress(const String& procname) { return (void*)Gdk::GL::get_proc_address(procname.c_str()); } Glib::RefPtr GTKGLSupport::getMainContext() const { return _main_context; }