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"
30 #ifdef EGL_VERSION_1_0
31 #include "egl/fg_state_egl.h"
33 #include "x11/fg_state_x11_glx.h"
36 int fgPlatformGlutDeviceGet ( GLenum eWhat )
40 case GLUT_HAS_KEYBOARD:
42 * X11 has a core keyboard by definition, although it can
43 * be present as a virtual/dummy keyboard. For now, there
44 * is no reliable way to tell if a real keyboard is present.
48 /* X11 has a mouse by definition */
52 case GLUT_NUM_MOUSE_BUTTONS:
53 /* We should be able to pass NULL when the last argument is zero,
54 * but at least one X server has a bug where this causes a segfault.
56 * In XFree86/Xorg servers, a mouse wheel is seen as two buttons
57 * rather than an Axis; "freeglut_main.c" expects this when
58 * checking for a wheel event.
62 int nbuttons = XGetPointerMapping(fgDisplay.pDisplay.Display, &map,0);
67 fgWarning( "glutDeviceGet(): missing enum handle %d", eWhat );
71 /* And now -- the failure. */
76 int fgPlatformGlutGet ( GLenum eWhat )
82 * Those calls are somewhat similiar, as they use XGetWindowAttributes()
87 case GLUT_WINDOW_BORDER_WIDTH:
88 case GLUT_WINDOW_HEADER_HEIGHT:
93 if( fgStructure.CurrentWindow == NULL )
96 if (fgStructure.CurrentWindow->Parent)
97 /* For child window, we should return relative to upper-left
98 * of parent's client area.
100 p = fgStructure.CurrentWindow->Parent->Window.Handle;
102 p = fgDisplay.pDisplay.RootWindow;
104 XTranslateCoordinates(
105 fgDisplay.pDisplay.Display,
106 fgStructure.CurrentWindow->Window.Handle,
112 case GLUT_WINDOW_X: return x;
113 case GLUT_WINDOW_Y: return y;
116 if ( w == 0 || fgStructure.CurrentWindow->Parent)
117 /* logic below needs w, and child windows don't have borders */
119 XTranslateCoordinates(
120 fgDisplay.pDisplay.Display,
121 fgStructure.CurrentWindow->Window.Handle,
122 w, 0, 0, &x, &y, &w);
126 case GLUT_WINDOW_BORDER_WIDTH: return x;
127 case GLUT_WINDOW_HEADER_HEIGHT: return y;
131 case GLUT_WINDOW_WIDTH:
132 case GLUT_WINDOW_HEIGHT:
134 XWindowAttributes winAttributes;
136 if( fgStructure.CurrentWindow == NULL )
138 XGetWindowAttributes(
139 fgDisplay.pDisplay.Display,
140 fgStructure.CurrentWindow->Window.Handle,
145 case GLUT_WINDOW_WIDTH: return winAttributes.width ;
146 case GLUT_WINDOW_HEIGHT: return winAttributes.height ;
150 /* Colormap size is handled in a bit different way than all the rest */
151 case GLUT_WINDOW_COLORMAP_SIZE:
153 #ifndef EGL_VERSION_1_0
154 fgPlatformGetConfig( GLX_RGBA ) ||
156 fgStructure.CurrentWindow == NULL)
159 * We've got a RGBA visual, so there is no colormap at all.
160 * The other possibility is that we have no current window set.
166 XVisualInfo * visualInfo;
168 #ifdef EGL_VERSION_1_0
170 XVisualInfo visualTemplate;
172 if (!eglGetConfigAttrib(fgDisplay.pDisplay.egl.Display,
173 fgStructure.CurrentWindow->Window.pContext.egl.Config,
174 EGL_NATIVE_VISUAL_ID, &vid))
175 fgError("eglGetConfigAttrib(EGL_NATIVE_VISUAL_ID) failed");
176 visualTemplate.visualid = vid;
177 visualInfo = XGetVisualInfo(fgDisplay.pDisplay.Display, VisualIDMask, &visualTemplate, &num_visuals);
180 const GLXFBConfig fbconfig =
181 fgStructure.CurrentWindow->Window.pContext.FBConfig;
184 glXGetVisualFromFBConfig( fgDisplay.pDisplay.Display, fbconfig );
187 result = visualInfo->visual->map_entries;
195 #ifdef EGL_VERSION_1_0
196 return fghPlatformGlutGetEGL(eWhat);
198 return fghPlatformGlutGetGLX(eWhat);