Initial import of 2.7 Lite.

2026-09-23 00:59:48 +00:00 · 2010-09-07 17:34:51 +02:00
parent efef33c791
commit 3249f812d6
97 changed files with 25983 additions and 0 deletions
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+//========================================================================
+// GLFW - An OpenGL framework
+// Platform:    X11/GLX
+// API version: 2.7
+// WWW:         http://www.glfw.org/
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+
+void (*glXGetProcAddress(const GLubyte *procName))();
+void (*glXGetProcAddressARB(const GLubyte *procName))();
+void (*glXGetProcAddressEXT(const GLubyte *procName))();
+
+// We support four different ways for getting addresses for GL/GLX
+// extension functions: glXGetProcAddress, glXGetProcAddressARB,
+// glXGetProcAddressEXT, and dlsym
+#if   defined( _GLFW_HAS_GLXGETPROCADDRESSARB )
+ #define _glfw_glXGetProcAddress(x) glXGetProcAddressARB(x)
+#elif defined( _GLFW_HAS_GLXGETPROCADDRESS )
+ #define _glfw_glXGetProcAddress(x) glXGetProcAddress(x)
+#elif defined( _GLFW_HAS_GLXGETPROCADDRESSEXT )
+ #define _glfw_glXGetProcAddress(x) glXGetProcAddressEXT(x)
+#elif defined( _GLFW_HAS_DLOPEN )
+ #define _glfw_glXGetProcAddress(x) dlsym(_glfwLibs.libGL,x)
+ #define _GLFW_DLOPEN_LIBGL
+#else
+#define _glfw_glXGetProcAddress(x) NULL
+#endif
+
+
+//************************************************************************
+//****               Platform implementation functions                ****
+//************************************************************************
+
+//========================================================================
+// Check if an OpenGL extension is available at runtime
+//========================================================================
+
+int _glfwPlatformExtensionSupported( const char *extension )
+{
+    const GLubyte *extensions;
+
+    // Get list of GLX extensions
+    extensions = (const GLubyte*) glXQueryExtensionsString( _glfwLibrary.display,
+                                                            _glfwWin.screen );
+    if( extensions != NULL )
+    {
+        if( _glfwStringInExtensionString( extension, extensions ) )
+        {
+            return GL_TRUE;
+        }
+    }
+
+    return GL_FALSE;
+}
+
+
+//========================================================================
+// Get the function pointer to an OpenGL function
+//========================================================================
+
+void * _glfwPlatformGetProcAddress( const char *procname )
+{
+    return (void *) _glfw_glXGetProcAddress( (const GLubyte *) procname );
+}
+