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"
34 int fgPlatformGlutDeviceGet ( GLenum eWhat )
38 case GLUT_HAS_KEYBOARD:
40 * X11 has a core keyboard by definition, although it can
41 * be present as a virtual/dummy keyboard. For now, there
42 * is no reliable way to tell if a real keyboard is present.
46 /* X11 has a mouse by definition */
50 case GLUT_NUM_MOUSE_BUTTONS:
51 /* We should be able to pass NULL when the last argument is zero,
52 * but at least one X server has a bug where this causes a segfault.
54 * In XFree86/Xorg servers, a mouse wheel is seen as two buttons
55 * rather than an Axis; "freeglut_main.c" expects this when
56 * checking for a wheel event.
60 int nbuttons = XGetPointerMapping(fgDisplay.pDisplay.Display, &map,0);
65 fgWarning( "glutDeviceGet(): missing enum handle %d", eWhat );
69 /* And now -- the failure. */
74 int fgPlatformGlutGet ( GLenum eWhat )
80 * Those calls are somewhat similiar, as they use XGetWindowAttributes()
85 case GLUT_WINDOW_BORDER_WIDTH:
86 case GLUT_WINDOW_HEADER_HEIGHT:
91 if( fgStructure.CurrentWindow == NULL )
94 XTranslateCoordinates(
95 fgDisplay.pDisplay.Display,
96 fgStructure.CurrentWindow->Window.Handle,
97 fgDisplay.pDisplay.RootWindow,
102 case GLUT_WINDOW_X: return x;
103 case GLUT_WINDOW_Y: return y;
108 XTranslateCoordinates(
109 fgDisplay.pDisplay.Display,
110 fgStructure.CurrentWindow->Window.Handle,
111 w, 0, 0, &x, &y, &w);
115 case GLUT_WINDOW_BORDER_WIDTH: return x;
116 case GLUT_WINDOW_HEADER_HEIGHT: return y;
120 case GLUT_WINDOW_WIDTH:
121 case GLUT_WINDOW_HEIGHT:
123 XWindowAttributes winAttributes;
125 if( fgStructure.CurrentWindow == NULL )
127 XGetWindowAttributes(
128 fgDisplay.pDisplay.Display,
129 fgStructure.CurrentWindow->Window.Handle,
134 case GLUT_WINDOW_WIDTH: return winAttributes.width ;
135 case GLUT_WINDOW_HEIGHT: return winAttributes.height ;
139 /* Colormap size is handled in a bit different way than all the rest */
140 case GLUT_WINDOW_COLORMAP_SIZE:
142 #ifndef EGL_VERSION_1_0
143 fgPlatformGetConfig( GLX_RGBA ) ||
145 fgStructure.CurrentWindow == NULL)
148 * We've got a RGBA visual, so there is no colormap at all.
149 * The other possibility is that we have no current window set.
155 XVisualInfo * visualInfo;
156 #ifdef EGL_VERSION_1_0
158 XVisualInfo visualTemplate;
160 if (!eglGetConfigAttrib(fgDisplay.pDisplay.egl.Display,
161 fgStructure.CurrentWindow->Window.pContext.egl.Config,
162 EGL_NATIVE_VISUAL_ID, &vid))
163 fgError("eglGetConfigAttrib(EGL_NATIVE_VISUAL_ID) failed");
164 visualTemplate.visualid = vid;
165 visualInfo = XGetVisualInfo(fgDisplay.pDisplay.Display, VisualIDMask, &visualTemplate, &num_visuals);
167 const GLXFBConfig fbconfig =
168 fgStructure.CurrentWindow->Window.pContext.FBConfig;
171 glXGetVisualFromFBConfig( fgDisplay.pDisplay.Display, fbconfig );
173 const int result = visualInfo->visual->map_entries;
181 #ifdef EGL_VERSION_1_0
182 return fghPlatformGlutGetEGL(eWhat);
184 return fghPlatformGlutGetGLX(eWhat);