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95 lines
2.9 KiB
95 lines
2.9 KiB
/* |
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Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz> |
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This file is part of Magnum. |
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Magnum is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License version 3 |
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only, as published by the Free Software Foundation. |
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Magnum 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 |
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GNU Lesser General Public License version 3 for more details. |
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*/ |
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#include "GlxContextHandler.h" |
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#include <GL/glxext.h> |
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#include <Utility/Debug.h> |
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#include "Context.h" |
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#define None 0L // redef Xlib nonsense |
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namespace Magnum { namespace Platform { |
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VisualID GlxContextHandler::getVisualId(Display* nativeDisplay) { |
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display = nativeDisplay; |
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/* Check version */ |
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int major, minor; |
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glXQueryVersion(nativeDisplay, &major, &minor); |
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if(major == 1 && minor < 4) { |
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Error() << "GlxContextHandler: GLX version 1.4 or greater is required."; |
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std::exit(1); |
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} |
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/* Choose config */ |
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int configCount = 0; |
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static const int attributes[] = { |
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GLX_RENDER_TYPE, GLX_RGBA_BIT, |
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GLX_X_RENDERABLE, True, |
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GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT, |
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GLX_DOUBLEBUFFER, True, |
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GLX_RED_SIZE, 8, |
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GLX_GREEN_SIZE, 8, |
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GLX_BLUE_SIZE, 8, |
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0 |
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}; |
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configs = glXChooseFBConfig(nativeDisplay, DefaultScreen(nativeDisplay), attributes, &configCount); |
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if(!configCount) { |
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Error() << "GlxContextHandler: no supported framebuffer configuration found."; |
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std::exit(1); |
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} |
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/* Get visual ID */ |
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XVisualInfo* info = glXGetVisualFromFBConfig(display, configs[0]); |
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VisualID visualId = info->visualid; |
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XFree(info); |
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return visualId; |
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} |
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void GlxContextHandler::createContext(Window nativeWindow) { |
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window = nativeWindow; |
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GLint attributes[] = { |
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#ifndef MAGNUM_TARGET_GLES |
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GLX_CONTEXT_MAJOR_VERSION_ARB, 3, |
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GLX_CONTEXT_MINOR_VERSION_ARB, 2, |
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GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB, |
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#else |
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GLX_CONTEXT_MAJOR_VERSION_ARB, 2, |
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GLX_CONTEXT_MINOR_VERSION_ARB, 0, |
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GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_ES2_PROFILE_BIT_EXT, |
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#endif |
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0 |
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}; |
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/** @todo Use some extension wrangler for this, not GLEW, as it apparently needs context to create context, yo dawg wtf. */ |
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PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC) glXGetProcAddress((const GLubyte*)"glXCreateContextAttribsARB"); |
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context = glXCreateContextAttribsARB(display, configs[0], 0, True, attributes); |
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XFree(configs); |
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if(!context) { |
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Error() << "GlxContextHandler: cannot create context."; |
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std::exit(1); |
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} |
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} |
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GlxContextHandler::~GlxContextHandler() { |
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glXMakeCurrent(display, None, nullptr); |
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glXDestroyContext(display, context); |
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} |
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}}
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