4 * X11-specific freeglut state query methods.
6 * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved.
7 * Written by John F. Fay, <fayjf@sourceforge.net>
8 * Creation date: Sat Feb 4 2012
10 * Permission is hereby granted, free of charge, to any person obtaining a
11 * copy of this software and associated documentation files (the "Software"),
12 * to deal in the Software without restriction, including without limitation
13 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
14 * and/or sell copies of the Software, and to permit persons to whom the
15 * Software is furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included
18 * in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
24 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #include <GL/freeglut.h>
29 #include "../fg_internal.h"
31 int fgPlatformGlutDeviceGet ( GLenum eWhat )
35 case GLUT_HAS_KEYBOARD:
37 * X11 has a core keyboard by definition, although it can
38 * be present as a virtual/dummy keyboard. For now, there
39 * is no reliable way to tell if a real keyboard is present.
43 /* X11 has a mouse by definition */
47 case GLUT_NUM_MOUSE_BUTTONS:
48 /* We should be able to pass NULL when the last argument is zero,
49 * but at least one X server has a bug where this causes a segfault.
51 * In XFree86/Xorg servers, a mouse wheel is seen as two buttons
52 * rather than an Axis; "freeglut_main.c" expects this when
53 * checking for a wheel event.
57 int nbuttons = XGetPointerMapping(fgDisplay.pDisplay.Display, &map,0);
62 fgWarning( "glutDeviceGet(): missing enum handle %d", eWhat );
66 /* And now -- the failure. */
71 int fgPlatformGlutGet ( GLenum eWhat )
77 * Those calls are somewhat similiar, as they use XGetWindowAttributes()
82 case GLUT_WINDOW_BORDER_WIDTH:
83 case GLUT_WINDOW_HEADER_HEIGHT:
88 if( fgStructure.CurrentWindow == NULL )
91 XTranslateCoordinates(
92 fgDisplay.pDisplay.Display,
93 fgStructure.CurrentWindow->Window.Handle,
94 fgDisplay.pDisplay.RootWindow,
99 case GLUT_WINDOW_X: return x;
100 case GLUT_WINDOW_Y: return y;
105 XTranslateCoordinates(
106 fgDisplay.pDisplay.Display,
107 fgStructure.CurrentWindow->Window.Handle,
108 w, 0, 0, &x, &y, &w);
112 case GLUT_WINDOW_BORDER_WIDTH: return x;
113 case GLUT_WINDOW_HEADER_HEIGHT: return y;
117 case GLUT_WINDOW_WIDTH:
118 case GLUT_WINDOW_HEIGHT:
120 XWindowAttributes winAttributes;
122 if( fgStructure.CurrentWindow == NULL )
124 XGetWindowAttributes(
125 fgDisplay.pDisplay.Display,
126 fgStructure.CurrentWindow->Window.Handle,
131 case GLUT_WINDOW_WIDTH: return winAttributes.width ;
132 case GLUT_WINDOW_HEIGHT: return winAttributes.height ;
136 /* Colormap size is handled in a bit different way than all the rest */
137 case GLUT_WINDOW_COLORMAP_SIZE:
139 #ifndef EGL_VERSION_1_0
140 fgPlatformGetConfig( GLX_RGBA ) ||
142 fgStructure.CurrentWindow == NULL)
145 * We've got a RGBA visual, so there is no colormap at all.
146 * The other possibility is that we have no current window set.
152 XVisualInfo * visualInfo;
153 #ifdef EGL_VERSION_1_0
155 XVisualInfo visualTemplate;
157 if (!eglGetConfigAttrib(fgDisplay.pDisplay.egl.Display,
158 fgStructure.CurrentWindow->Window.pContext.egl.Config,
159 EGL_NATIVE_VISUAL_ID, &vid))
160 fgError("eglGetConfigAttrib(EGL_NATIVE_VISUAL_ID) failed");
161 visualTemplate.visualid = vid;
162 visualInfo = XGetVisualInfo(fgDisplay.pDisplay.Display, VisualIDMask, &visualTemplate, &num_visuals);
164 const GLXFBConfig fbconfig =
165 fgStructure.CurrentWindow->Window.pContext.FBConfig;
168 glXGetVisualFromFBConfig( fgDisplay.pDisplay.Display, fbconfig );
170 const int result = visualInfo->visual->map_entries;
178 #ifdef EGL_VERSION_1_0
179 return fghPlatformGlutGetEGL(eWhat);
181 return fghPlatformGlutGetGLX(eWhat);