Initial import of 2.7 Lite.

2026-09-22 16:52:57 +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"
+
+
+
+//************************************************************************
+//****                  GLFW internal functions                       ****
+//************************************************************************
+
+//========================================================================
+// Dynamically load libraries
+//========================================================================
+
+static void initLibraries( void )
+{
+#ifdef _GLFW_DLOPEN_LIBGL
+    int i;
+    char *libGL_names[ ] =
+    {
+        "libGL.so",
+        "libGL.so.1",
+        "/usr/lib/libGL.so",
+        "/usr/lib/libGL.so.1",
+        NULL
+    };
+
+    _glfwLibrary.Libs.libGL = NULL;
+    for( i = 0; !libGL_names[ i ] != NULL; i ++ )
+    {
+        _glfwLibrary.Libs.libGL = dlopen( libGL_names[ i ],
+                                          RTLD_LAZY | RTLD_GLOBAL );
+        if( _glfwLibrary.Libs.libGL )
+            break;
+    }
+#endif
+}
+
+
+//========================================================================
+// Terminate GLFW when exiting application
+//========================================================================
+
+static void glfw_atexit( void )
+{
+    glfwTerminate();
+}
+
+
+//========================================================================
+// Initialize X11 display
+//========================================================================
+
+static int initDisplay( void )
+{
+    // Open display
+    _glfwLibrary.display = XOpenDisplay( 0 );
+    if( !_glfwLibrary.display )
+    {
+        fprintf(stderr, "Failed to open X display\n");
+        return GL_FALSE;
+    }
+
+    // Check for XF86VidMode extension
+#ifdef _GLFW_HAS_XF86VIDMODE
+    _glfwLibrary.XF86VidMode.available =
+        XF86VidModeQueryExtension( _glfwLibrary.display,
+                                   &_glfwLibrary.XF86VidMode.eventBase,
+                                   &_glfwLibrary.XF86VidMode.errorBase);
+#else
+    _glfwLibrary.XF86VidMode.available = 0;
+#endif
+
+    // Check for XRandR extension
+#ifdef _GLFW_HAS_XRANDR
+    _glfwLibrary.XRandR.available =
+        XRRQueryExtension( _glfwLibrary.display,
+                           &_glfwLibrary.XRandR.eventBase,
+                           &_glfwLibrary.XRandR.errorBase );
+#else
+    _glfwLibrary.XRandR.available = 0;
+#endif
+
+    // Fullscreen & screen saver settings
+    // Check if GLX is supported on this display
+    if( !glXQueryExtension( _glfwLibrary.display, NULL, NULL ) )
+    {
+        fprintf(stderr, "GLX not supported\n");
+        return GL_FALSE;
+    }
+
+    // Retrieve GLX version
+    if( !glXQueryVersion( _glfwLibrary.display,
+                          &_glfwLibrary.glxMajor,
+                          &_glfwLibrary.glxMinor ) )
+    {
+        fprintf(stderr, "Unable to query GLX version\n");
+        return GL_FALSE;
+    }
+
+    return GL_TRUE;
+}
+
+
+//========================================================================
+// Terminate X11 display
+//========================================================================
+
+static void terminateDisplay( void )
+{
+    // Open display
+    if( _glfwLibrary.display )
+    {
+        XCloseDisplay( _glfwLibrary.display );
+        _glfwLibrary.display = NULL;
+    }
+}
+
+
+//************************************************************************
+//****               Platform implementation functions                ****
+//************************************************************************
+
+//========================================================================
+// Initialize various GLFW state
+//========================================================================
+
+int _glfwPlatformInit( void )
+{
+    // Initialize display
+    if( !initDisplay() )
+    {
+        return GL_FALSE;
+    }
+
+    // Try to load libGL.so if necessary
+    initLibraries();
+
+    // Install atexit() routine
+    atexit( glfw_atexit );
+
+    // Initialize joysticks
+    _glfwInitJoysticks();
+
+    // Start the timer
+    _glfwInitTimer();
+
+    return GL_TRUE;
+}
+
+
+//========================================================================
+// Close window and shut down library
+//========================================================================
+
+int _glfwPlatformTerminate( void )
+{
+    // Close OpenGL window
+    glfwCloseWindow();
+
+    // Terminate display
+    terminateDisplay();
+
+    // Terminate joysticks
+    _glfwTerminateJoysticks();
+
+    // Unload libGL.so if necessary
+#ifdef _GLFW_DLOPEN_LIBGL
+    if( _glfwLibrary.Libs.libGL != NULL )
+    {
+        dlclose( _glfwLibrary.Libs.libGL );
+        _glfwLibrary.Libs.libGL = NULL;
+    }
+#endif
+
+    return GL_TRUE;
+}
+