4 * Window management methods.
6 * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
7 * Written by Pawel W. Olszta, <olszta@sourceforge.net>
8 * Creation date: Fri Dec 3 1999
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 "freeglut_internal.h"
31 #if TARGET_HOST_POSIX_X11
32 #include <limits.h> /* LONG_MAX */
35 #if defined(_WIN32_WCE)
36 # include <Aygshell.h>
37 # ifdef FREEGLUT_LIB_PRAGMAS
38 # pragma comment( lib, "Aygshell.lib" )
41 static wchar_t* fghWstrFromStr(const char* str)
43 int i,len=strlen(str);
44 wchar_t* wstr = (wchar_t*)malloc(2*len+2);
51 #endif /* defined(_WIN32_WCE) */
54 * TODO BEFORE THE STABLE RELEASE:
56 * fgChooseFBConfig() -- OK, but what about glutInitDisplayString()?
57 * fgSetupPixelFormat -- ignores the display mode settings
58 * fgOpenWindow() -- check the Win32 version, -iconic handling!
59 * fgCloseWindow() -- check the Win32 version
60 * glutCreateWindow() -- Check when default position and size is {-1,-1}
61 * glutCreateSubWindow() -- Check when default position and size is {-1,-1}
62 * glutDestroyWindow() -- check the Win32 version
63 * glutSetWindow() -- check the Win32 version
64 * glutGetWindow() -- OK
65 * glutSetWindowTitle() -- check the Win32 version
66 * glutSetIconTitle() -- check the Win32 version
67 * glutShowWindow() -- check the Win32 version
68 * glutHideWindow() -- check the Win32 version
69 * glutIconifyWindow() -- check the Win32 version
70 * glutReshapeWindow() -- check the Win32 version
71 * glutPositionWindow() -- check the Win32 version
72 * glutPushWindow() -- check the Win32 version
73 * glutPopWindow() -- check the Win32 version
76 /* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
79 * Chooses a visual basing on the current display mode settings
81 #if TARGET_HOST_POSIX_X11
83 GLXFBConfig* fgChooseFBConfig( void )
85 GLboolean wantIndexedMode = GL_FALSE;
89 /* First we have to process the display mode settings... */
91 * XXX Why is there a semi-colon in this #define? The code
92 * XXX that uses the macro seems to always add more semicolons...
94 #define ATTRIB(a) attributes[where++]=a;
95 #define ATTRIB_VAL(a,v) {ATTRIB(a); ATTRIB(v);}
97 if( fgState.DisplayMode & GLUT_INDEX )
99 ATTRIB_VAL( GLX_BUFFER_SIZE, 8 );
100 /* Buffer size is selected later. */
102 ATTRIB_VAL( GLX_RENDER_TYPE, GLX_COLOR_INDEX_BIT );
103 wantIndexedMode = GL_TRUE;
107 ATTRIB_VAL( GLX_RED_SIZE, 1 );
108 ATTRIB_VAL( GLX_GREEN_SIZE, 1 );
109 ATTRIB_VAL( GLX_BLUE_SIZE, 1 );
110 if( fgState.DisplayMode & GLUT_ALPHA )
111 ATTRIB_VAL( GLX_ALPHA_SIZE, 1 );
114 if( fgState.DisplayMode & GLUT_DOUBLE )
115 ATTRIB_VAL( GLX_DOUBLEBUFFER, True );
117 if( fgState.DisplayMode & GLUT_STEREO )
118 ATTRIB_VAL( GLX_STEREO, True );
120 if( fgState.DisplayMode & GLUT_DEPTH )
121 ATTRIB_VAL( GLX_DEPTH_SIZE, 1 );
123 if( fgState.DisplayMode & GLUT_STENCIL )
124 ATTRIB_VAL( GLX_STENCIL_SIZE, 1 );
126 if( fgState.DisplayMode & GLUT_ACCUM )
128 ATTRIB_VAL( GLX_ACCUM_RED_SIZE, 1 );
129 ATTRIB_VAL( GLX_ACCUM_GREEN_SIZE, 1 );
130 ATTRIB_VAL( GLX_ACCUM_BLUE_SIZE, 1 );
131 if( fgState.DisplayMode & GLUT_ALPHA )
132 ATTRIB_VAL( GLX_ACCUM_ALPHA_SIZE, 1 );
135 if ((fgState.DisplayMode & GLUT_AUX)
136 || (fgState.DisplayMode & GLUT_AUX1)
137 || (fgState.DisplayMode & GLUT_AUX2)
138 || (fgState.DisplayMode & GLUT_AUX3)
139 || (fgState.DisplayMode & GLUT_AUX4))
141 ATTRIB_VAL(GLX_AUX_BUFFERS, fgState.AuxiliaryBufferNumber)
144 if (fgState.DisplayMode & GLUT_MULTISAMPLE)
146 ATTRIB_VAL(GLX_SAMPLE_BUFFERS, 1)
147 ATTRIB_VAL(GLX_SAMPLES, fgState.SampleNumber)
150 /* Push a null at the end of the list */
154 GLXFBConfig * fbconfigArray; /* Array of FBConfigs */
155 GLXFBConfig * fbconfig; /* The FBConfig we want */
156 int fbconfigArraySize; /* Number of FBConfigs in the array */
159 /* Get all FBConfigs that match "attributes". */
160 fbconfigArray = glXChooseFBConfig( fgDisplay.Display,
163 &fbconfigArraySize );
165 if (fbconfigArray != NULL)
167 int result; /* Returned by glXGetFBConfigAttrib, not checked. */
170 if( wantIndexedMode )
173 * In index mode, we want the largest buffer size, i.e. visual
174 * depth. Here, FBConfigs are sorted by increasing buffer size
175 * first, so FBConfigs with the largest size come last.
178 int bufferSizeMin, bufferSizeMax;
180 /* Get bufferSizeMin. */
182 glXGetFBConfigAttrib( fgDisplay.Display,
186 /* Get bufferSizeMax. */
188 glXGetFBConfigAttrib( fgDisplay.Display,
189 fbconfigArray[fbconfigArraySize - 1],
193 if (bufferSizeMax > bufferSizeMin)
196 * Free and reallocate fbconfigArray, keeping only FBConfigs
197 * with the largest buffer size.
199 XFree(fbconfigArray);
201 /* Add buffer size token at the end of the list. */
203 ATTRIB_VAL( GLX_BUFFER_SIZE, bufferSizeMax );
206 fbconfigArray = glXChooseFBConfig( fgDisplay.Display,
209 &fbconfigArraySize );
214 * We now have an array of FBConfigs, the first one being the "best"
215 * one. So we should return only this FBConfig:
219 * - pick the XID of the FBConfig we want
220 * result = glXGetFBConfigAttrib( fgDisplay.Display,
226 * XFree(fbconfigArray);
228 * - reset "attributes" with the XID
230 * ATTRIB_VAL( GLX_FBCONFIG_ID, fbconfigXID );
233 * - get our FBConfig only
234 * fbconfig = glXChooseFBConfig( fgDisplay.Display,
237 * &fbconfigArraySize );
239 * However, for some configurations (for instance multisampling with
240 * Mesa 6.5.2 and ATI drivers), this does not work:
241 * glXChooseFBConfig returns NULL, whereas fbconfigXID is a valid
242 * XID. Further investigation is needed.
244 * So, for now, we return the whole array of FBConfigs. This should
245 * not produce any side effects elsewhere.
247 fbconfig = fbconfigArray;
257 #endif /* TARGET_HOST_POSIX_X11 */
260 * Setup the pixel format for a Win32 window
262 #if TARGET_HOST_MS_WINDOWS
263 /* The following include file is available from SGI but is not standard:
264 * #include <GL/wglext.h>
265 * So we copy the necessary parts out of it.
266 * XXX: should local definitions for extensions be put in a separate include file?
268 typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc);
270 typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
272 #define WGL_DRAW_TO_WINDOW_ARB 0x2001
273 #define WGL_ACCELERATION_ARB 0x2003
274 #define WGL_SUPPORT_OPENGL_ARB 0x2010
275 #define WGL_DOUBLE_BUFFER_ARB 0x2011
276 #define WGL_COLOR_BITS_ARB 0x2014
277 #define WGL_ALPHA_BITS_ARB 0x201B
278 #define WGL_DEPTH_BITS_ARB 0x2022
279 #define WGL_STENCIL_BITS_ARB 0x2023
280 #define WGL_FULL_ACCELERATION_ARB 0x2027
282 #define WGL_SAMPLE_BUFFERS_ARB 0x2041
283 #define WGL_SAMPLES_ARB 0x2042
286 #ifndef WGL_ARB_create_context
287 #define WGL_ARB_create_context 1
288 #ifdef WGL_WGLEXT_PROTOTYPES
289 extern HGLRC WINAPI wglCreateContextAttribsARB (HDC, HGLRC, const int *);
290 #endif /* WGL_WGLEXT_PROTOTYPES */
291 typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSARBPROC) (HDC hDC, HGLRC hShareContext, const int *attribList);
293 #define WGL_CONTEXT_DEBUG_BIT_ARB 0x0001
294 #define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002
295 #define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091
296 #define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092
297 #define WGL_CONTEXT_LAYER_PLANE_ARB 0x2093
298 #define WGL_CONTEXT_FLAGS_ARB 0x2094
299 #define ERROR_INVALID_VERSION_ARB 0x2095
303 void fgNewWGLCreateContext( SFG_Window* window )
305 PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetEntensionsStringARB;
308 PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB;
309 const char * pWglExtString;
311 /* If nothing fancy has been required, leave the context as it is */
312 if ( fgState.MajorVersion == 1 && fgState.MinorVersion == 0 && fgState.ContextFlags == 0 )
317 wglMakeCurrent( window->Window.Device,
318 window->Window.Context );
320 wglGetEntensionsStringARB=(PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
321 if ( wglGetEntensionsStringARB == NULL )
326 pWglExtString=wglGetEntensionsStringARB(window->Window.Device);
327 if (( pWglExtString == NULL ) || ( strstr(pWglExtString, "WGL_ARB_create_context") == NULL ))
332 /* new context creation */
333 attribs[0] = WGL_CONTEXT_MAJOR_VERSION_ARB;
334 attribs[1] = fgState.MajorVersion;
335 attribs[2] = WGL_CONTEXT_MINOR_VERSION_ARB;
336 attribs[3] = fgState.MinorVersion;
337 attribs[4] = WGL_CONTEXT_FLAGS_ARB;
338 attribs[5] = ((fgState.ContextFlags & GLUT_DEBUG) ? WGL_CONTEXT_DEBUG_BIT_ARB : 0) |
339 ((fgState.ContextFlags & GLUT_FORWARD_COMPATIBLE) ? WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB : 0);
342 wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC) wglGetProcAddress( "wglCreateContextAttribsARB" );
343 if ( wglCreateContextAttribsARB == NULL )
345 fgError( "wglCreateContextAttribsARB not found" );
348 context = wglCreateContextAttribsARB( window->Window.Device, 0, attribs );
349 if ( context == NULL )
351 fgError( "Unable to create OpenGL %d.%d context (flags %x)",
352 fgState.MajorVersion, fgState.MinorVersion, fgState.ContextFlags );
355 wglMakeCurrent( NULL, NULL );
356 wglDeleteContext( window->Window.Context );
357 window->Window.Context = context;
361 GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly,
362 unsigned char layer_type )
364 #if defined(_WIN32_WCE)
367 PIXELFORMATDESCRIPTOR* ppfd, pfd;
368 int flags, pixelformat;
370 freeglut_return_val_if_fail( window != NULL, 0 );
371 flags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
372 if( fgState.DisplayMode & GLUT_DOUBLE )
373 flags |= PFD_DOUBLEBUFFER;
375 if( fgState.DisplayMode & GLUT_STEREO )
378 #if defined(_MSC_VER)
379 #pragma message( "fgSetupPixelFormat(): there is still some work to do here!" )
382 /* Specify which pixel format do we opt for... */
383 pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
387 if( fgState.DisplayMode & GLUT_INDEX )
389 pfd.iPixelType = PFD_TYPE_COLORINDEX;
397 pfd.iPixelType = PFD_TYPE_RGBA;
401 if ( fgState.DisplayMode & GLUT_ALPHA )
413 pfd.cAccumRedBits = 0;
414 pfd.cAccumGreenBits = 0;
415 pfd.cAccumBlueBits = 0;
416 pfd.cAccumAlphaBits = 0;
419 pfd.cStencilBits = 0;
422 pfd.cStencilBits = 8;
424 if( fgState.DisplayMode & GLUT_AUX4 )
426 else if( fgState.DisplayMode & GLUT_AUX3 )
428 else if( fgState.DisplayMode & GLUT_AUX2 )
430 else if( fgState.DisplayMode & GLUT_AUX1 )
435 pfd.iLayerType = layer_type;
438 pfd.dwVisibleMask = 0;
439 pfd.dwDamageMask = 0;
441 pfd.cColorBits = (BYTE) GetDeviceCaps( window->Window.Device, BITSPIXEL );
444 pixelformat = ChoosePixelFormat( window->Window.Device, ppfd );
446 /* windows hack for multismapling */
447 if (fgState.DisplayMode&GLUT_MULTISAMPLE)
449 PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetEntensionsStringARB=NULL;
450 HGLRC rc, rc_before=wglGetCurrentContext();
452 HDC hDC, hDC_before=wglGetCurrentDC();
455 /* create a dummy window */
456 ZeroMemory(&wndCls, sizeof(wndCls));
457 wndCls.lpfnWndProc = DefWindowProc;
458 wndCls.hInstance = fgDisplay.Instance;
459 wndCls.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
460 wndCls.lpszClassName = _T("FREEGLUT_dummy");
461 RegisterClass( &wndCls );
463 hWnd=CreateWindow(_T("FREEGLUT_dummy"), _T(""), WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW , 0,0,0,0, 0, 0, fgDisplay.Instance, 0 );
465 SetPixelFormat( hDC, pixelformat, ppfd );
467 rc = wglCreateContext( hDC );
468 wglMakeCurrent(hDC, rc);
470 wglGetEntensionsStringARB=(PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
471 if (wglGetEntensionsStringARB)
473 const char * pWglExtString=wglGetEntensionsStringARB(hDC);
476 if (strstr(pWglExtString, "WGL_ARB_multisample"))
478 int pAttributes[100];
482 float fAttributes[] = {0,0};
484 PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARBProc=NULL;
486 wglChoosePixelFormatARBProc=(PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
487 if ( wglChoosePixelFormatARBProc )
489 pAttributes[iCounter++]=WGL_DRAW_TO_WINDOW_ARB; pAttributes[iCounter++]=GL_TRUE;
490 pAttributes[iCounter++]=WGL_SUPPORT_OPENGL_ARB; pAttributes[iCounter++]=GL_TRUE;
491 pAttributes[iCounter++]=WGL_ACCELERATION_ARB; pAttributes[iCounter++]=WGL_FULL_ACCELERATION_ARB;
493 pAttributes[iCounter++]=WGL_COLOR_BITS_ARB; pAttributes[iCounter++]=pfd.cColorBits ;
494 pAttributes[iCounter++]=WGL_ALPHA_BITS_ARB; pAttributes[iCounter++]=pfd.cAlphaBits;
495 pAttributes[iCounter++]=WGL_DEPTH_BITS_ARB; pAttributes[iCounter++]=pfd.cDepthBits;
496 pAttributes[iCounter++]=WGL_STENCIL_BITS_ARB; pAttributes[iCounter++]=pfd.cStencilBits;
498 pAttributes[iCounter++]=WGL_DOUBLE_BUFFER_ARB; pAttributes[iCounter++]=(fgState.DisplayMode & GLUT_DOUBLE)!=0;
499 pAttributes[iCounter++]=WGL_SAMPLE_BUFFERS_ARB; pAttributes[iCounter++]=GL_TRUE;
500 pAttributes[iCounter++]=WGL_SAMPLES_ARB; pAttributes[iCounter++]=4;
501 pAttributes[iCounter++]=0; pAttributes[iCounter++]=0; /* terminator */
503 bValid = wglChoosePixelFormatARBProc(window->Window.Device,pAttributes,fAttributes,1,&iPixelFormat,&numFormats);
505 if (bValid && numFormats>0)
506 pixelformat=iPixelFormat;
509 wglMakeCurrent( hDC_before, rc_before);
510 wglDeleteContext(rc);
511 ReleaseDC(hWnd, hDC);
513 UnregisterClass(_T("FREEGLUT_dummy"), fgDisplay.Instance);
518 if( pixelformat == 0 )
523 return SetPixelFormat( window->Window.Device, pixelformat, ppfd );
524 #endif /* defined(_WIN32_WCE) */
526 #endif /* TARGET_HOST_MS_WINDOWS */
529 * Sets the OpenGL context and the fgStructure "Current Window" pointer to
530 * the window structure passed in.
532 void fgSetWindow ( SFG_Window *window )
534 #if TARGET_HOST_POSIX_X11
536 glXMakeContextCurrent(
538 window->Window.Handle,
539 window->Window.Handle,
540 window->Window.Context
542 #elif TARGET_HOST_MS_WINDOWS
543 if( fgStructure.CurrentWindow )
544 ReleaseDC( fgStructure.CurrentWindow->Window.Handle,
545 fgStructure.CurrentWindow->Window.Device );
549 window->Window.Device = GetDC( window->Window.Handle );
551 window->Window.Device,
552 window->Window.Context
556 fgStructure.CurrentWindow = window;
561 #if TARGET_HOST_POSIX_X11
563 #ifndef GLX_CONTEXT_MAJOR_VERSION_ARB
564 #define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091
567 #ifndef GLX_CONTEXT_MINOR_VERSION_ARB
568 #define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092
571 #ifndef GLX_CONTEXT_FLAGS_ARB
572 #define GLX_CONTEXT_FLAGS_ARB 0x2094
575 #ifndef GLX_CONTEXT_DEBUG_BIT_ARB
576 #define GLX_CONTEXT_DEBUG_BIT_ARB 0x0001
579 #ifndef GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB
580 #define GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002
583 typedef GLXContext (*CreateContextAttribsProc)(Display *dpy, GLXFBConfig config,
584 GLXContext share_list, Bool direct,
585 const int *attrib_list);
587 static GLXContext fghCreateNewContext( SFG_Window* window )
589 /* for color model calculation */
590 int menu = ( window->IsMenu && !fgStructure.MenuContext );
591 int index_mode = ( fgState.DisplayMode & GLUT_INDEX );
593 /* "classic" context creation */
594 Display *dpy = fgDisplay.Display;
595 GLXFBConfig config = *(window->Window.FBConfig);
596 int render_type = ( !menu && index_mode ) ? GLX_COLOR_INDEX_TYPE : GLX_RGBA_TYPE;
597 GLXContext share_list = NULL;
598 Bool direct = ( fgState.DirectContext != GLUT_FORCE_INDIRECT_CONTEXT );
601 /* new context creation */
603 CreateContextAttribsProc createContextAttribs;
605 /* If nothing fancy has been required, simply use the old context creation GLX API entry */
606 if ( fgState.MajorVersion == 1 && fgState.MinorVersion == 0 && fgState.ContextFlags == 0)
608 context = glXCreateNewContext( dpy, config, render_type, share_list, direct );
609 if ( context == NULL ) {
610 fgError( "could not create new OpenGL context" );
615 /* color index mode is not available anymore with OpenGL 3.0 */
616 if ( render_type == GLX_COLOR_INDEX_TYPE ) {
617 fgWarning( "color index mode is deprecated, using RGBA mode" );
620 attribs[0] = GLX_CONTEXT_MAJOR_VERSION_ARB;
621 attribs[1] = fgState.MajorVersion;
622 attribs[2] = GLX_CONTEXT_MINOR_VERSION_ARB;
623 attribs[3] = fgState.MinorVersion;
624 attribs[4] = GLX_CONTEXT_FLAGS_ARB;
625 attribs[5] = ((fgState.ContextFlags & GLUT_DEBUG) ? GLX_CONTEXT_DEBUG_BIT_ARB : 0) |
626 ((fgState.ContextFlags & GLUT_FORWARD_COMPATIBLE) ? GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB : 0);
629 createContextAttribs = (CreateContextAttribsProc) fghGetProcAddress( "glXCreateContextAttribsARB" );
630 if ( createContextAttribs == NULL ) {
631 fgError( "glXCreateContextAttribsARB not found" );
634 context = createContextAttribs( dpy, config, share_list, direct, attribs );
635 if ( context == NULL ) {
636 fgError( "could not create new OpenGL %d.%d context (flags %x)",
637 fgState.MajorVersion, fgState.MinorVersion, fgState.ContextFlags );
645 * Opens a window. Requires a SFG_Window object created and attached
646 * to the freeglut structure. OpenGL context is created here.
648 void fgOpenWindow( SFG_Window* window, const char* title,
649 GLboolean positionUse, int x, int y,
650 GLboolean sizeUse, int w, int h,
651 GLboolean gameMode, GLboolean isSubWindow )
653 #if TARGET_HOST_POSIX_X11
654 XVisualInfo * visualInfo;
655 XSetWindowAttributes winAttr;
656 XTextProperty textProperty;
657 XSizeHints sizeHints;
660 unsigned int current_DisplayMode = fgState.DisplayMode ;
662 /* Save the display mode if we are creating a menu window */
663 if( window->IsMenu && ( ! fgStructure.MenuContext ) )
664 fgState.DisplayMode = GLUT_DOUBLE | GLUT_RGB ;
666 window->Window.FBConfig = fgChooseFBConfig( );
668 if( window->IsMenu && ( ! fgStructure.MenuContext ) )
669 fgState.DisplayMode = current_DisplayMode ;
671 if( ! window->Window.FBConfig )
674 * The "fgChooseFBConfig" returned a null meaning that the visual
675 * context is not available.
676 * Try a couple of variations to see if they will work.
678 if( !( fgState.DisplayMode & GLUT_DOUBLE ) )
680 fgState.DisplayMode |= GLUT_DOUBLE ;
681 window->Window.FBConfig = fgChooseFBConfig( );
682 fgState.DisplayMode &= ~GLUT_DOUBLE;
685 if( fgState.DisplayMode & GLUT_MULTISAMPLE )
687 fgState.DisplayMode &= ~GLUT_MULTISAMPLE ;
688 window->Window.FBConfig = fgChooseFBConfig( );
689 fgState.DisplayMode |= GLUT_MULTISAMPLE;
693 FREEGLUT_INTERNAL_ERROR_EXIT( window->Window.FBConfig != NULL,
694 "FBConfig with necessary capabilities not found", "fgOpenWindow" );
696 /* Get the X visual. */
697 visualInfo = glXGetVisualFromFBConfig( fgDisplay.Display,
698 *(window->Window.FBConfig) );
701 * XXX HINT: the masks should be updated when adding/removing callbacks.
702 * XXX This might speed up message processing. Is that true?
704 * XXX A: Not appreciably, but it WILL make it easier to debug.
705 * XXX Try tracing old GLUT and try tracing freeglut. Old GLUT
706 * XXX turns off events that it doesn't need and is a whole lot
707 * XXX more pleasant to trace. (Think mouse-motion! Tons of
708 * XXX ``bonus'' GUI events stream in.)
711 StructureNotifyMask | SubstructureNotifyMask | ExposureMask |
712 ButtonPressMask | ButtonReleaseMask | KeyPressMask | KeyReleaseMask |
713 VisibilityChangeMask | EnterWindowMask | LeaveWindowMask |
714 PointerMotionMask | ButtonMotionMask;
715 winAttr.background_pixmap = None;
716 winAttr.background_pixel = 0;
717 winAttr.border_pixel = 0;
719 winAttr.colormap = XCreateColormap(
720 fgDisplay.Display, fgDisplay.RootWindow,
721 visualInfo->visual, AllocNone
724 mask = CWBackPixmap | CWBorderPixel | CWColormap | CWEventMask;
726 if( window->IsMenu || ( gameMode == GL_TRUE ) )
728 winAttr.override_redirect = True;
729 mask |= CWOverrideRedirect;
733 x = y = -1; /* default window position */
735 w = h = 300; /* default window size */
737 window->Window.Handle = XCreateWindow(
739 window->Parent == NULL ? fgDisplay.RootWindow :
740 window->Parent->Window.Handle,
742 visualInfo->depth, InputOutput,
743 visualInfo->visual, mask,
748 * The GLX context creation, possibly trying the direct context rendering
749 * or else use the current context if the user has so specified
755 * If there isn't already an OpenGL rendering context for menu
758 if( !fgStructure.MenuContext )
760 fgStructure.MenuContext =
761 (SFG_MenuContext *)malloc( sizeof(SFG_MenuContext) );
762 fgStructure.MenuContext->MContext = fghCreateNewContext( window );
765 /* window->Window.Context = fgStructure.MenuContext->MContext; */
766 window->Window.Context = fghCreateNewContext( window );
768 else if( fgState.UseCurrentContext )
770 window->Window.Context = glXGetCurrentContext( );
772 if( ! window->Window.Context )
773 window->Window.Context = fghCreateNewContext( window );
776 window->Window.Context = fghCreateNewContext( window );
778 #if !defined( __FreeBSD__ ) && !defined( __NetBSD__ )
779 if( !glXIsDirect( fgDisplay.Display, window->Window.Context ) )
781 if( fgState.DirectContext == GLUT_FORCE_DIRECT_CONTEXT )
782 fgError( "Unable to force direct context rendering for window '%s'",
788 * XXX Assume the new window is visible by default
789 * XXX Is this a safe assumption?
791 window->State.Visible = GL_TRUE;
795 sizeHints.flags |= USPosition;
797 sizeHints.flags |= USSize;
800 * Fill in the size hints values now (the x, y, width and height
801 * settings are obsolete, are there any more WMs that support them?)
802 * Unless the X servers actually stop supporting these, we should
803 * continue to fill them in. It is *not* our place to tell the user
804 * that they should replace a window manager that they like, and which
805 * works, just because *we* think that it's not "modern" enough.
810 sizeHints.height = h;
812 wmHints.flags = StateHint;
813 wmHints.initial_state = fgState.ForceIconic ? IconicState : NormalState;
814 /* Prepare the window and iconified window names... */
815 XStringListToTextProperty( (char **) &title, 1, &textProperty );
819 window->Window.Handle,
828 XFree( textProperty.value );
830 XSetWMProtocols( fgDisplay.Display, window->Window.Handle,
831 &fgDisplay.DeleteWindow, 1 );
833 glXMakeContextCurrent(
835 window->Window.Handle,
836 window->Window.Handle,
837 window->Window.Context
840 XMapWindow( fgDisplay.Display, window->Window.Handle );
844 #elif TARGET_HOST_MS_WINDOWS
852 /* Grab the window class we have registered on glutInit(): */
853 atom = GetClassInfo( fgDisplay.Instance, _T("FREEGLUT"), &wc );
854 FREEGLUT_INTERNAL_ERROR_EXIT ( atom, "Window Class Info Not Found",
859 FREEGLUT_INTERNAL_ERROR_EXIT ( window->Parent == NULL,
860 "Game mode being invoked on a subwindow",
864 * Set the window creation flags appropriately to make the window
867 flags = WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE;
871 int worig = w, horig = h;
873 #if !defined(_WIN32_WCE)
874 if ( ( ! isSubWindow ) && ( ! window->IsMenu ) )
877 * Update the window dimensions, taking account of window
878 * decorations. "freeglut" is to create the window with the
879 * outside of its border at (x,y) and with dimensions (w,h).
881 w += (GetSystemMetrics( SM_CXSIZEFRAME ) )*2;
882 h += (GetSystemMetrics( SM_CYSIZEFRAME ) )*2 +
883 GetSystemMetrics( SM_CYCAPTION );
885 #endif /* defined(_WIN32_WCE) */
892 /* setting State.Width/Height to call resize callback later */
895 if( ! window->IsMenu )
900 else /* fail safe - Windows can make a window of size (0, 0) */
901 w = h = 300; /* default window size */
902 window->State.Width = window->State.Height = -1;
906 window->State.Width = worig;
907 window->State.Height = horig;
911 * There's a small difference between creating the top, child and
914 flags = WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE;
916 if ( window->IsMenu )
919 exFlags |= WS_EX_TOOLWINDOW;
921 #if !defined(_WIN32_WCE)
922 else if( window->Parent == NULL )
923 flags |= WS_OVERLAPPEDWINDOW;
929 #if defined(_WIN32_WCE)
931 wchar_t* wstr = fghWstrFromStr(title);
933 window->Window.Handle = CreateWindow(
936 WS_VISIBLE | WS_POPUP,
946 SHFullScreen(window->Window.Handle, SHFS_HIDESTARTICON);
947 SHFullScreen(window->Window.Handle, SHFS_HIDESIPBUTTON);
948 SHFullScreen(window->Window.Handle, SHFS_HIDETASKBAR);
949 MoveWindow(window->Window.Handle, 0, 0, 240, 320, TRUE);
950 ShowWindow(window->Window.Handle, SW_SHOW);
951 UpdateWindow(window->Window.Handle);
954 window->Window.Handle = CreateWindowEx(
960 (HWND) window->Parent == NULL ? NULL : window->Parent->Window.Handle,
965 #endif /* defined(_WIN32_WCE) */
967 if( !( window->Window.Handle ) )
968 fgError( "Failed to create a window (%s)!", title );
970 /* Make a menu window always on top - fix Feature Request 947118 */
971 if( window->IsMenu || gameMode )
973 window->Window.Handle,
976 SWP_NOMOVE | SWP_NOSIZE
979 /* Hack to remove the caption (title bar) and/or border
980 * and all the system menu controls.
982 WindowStyle = GetWindowLong(window->Window.Handle, GWL_STYLE);
983 if ( fgState.DisplayMode & GLUT_CAPTIONLESS )
985 SetWindowLong ( window->Window.Handle, GWL_STYLE,
986 WindowStyle & ~(WS_DLGFRAME | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX));
988 else if ( fgState.DisplayMode & GLUT_BORDERLESS )
990 SetWindowLong ( window->Window.Handle, GWL_STYLE,
991 WindowStyle & ~(WS_BORDER | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX));
993 /* SetWindowPos(window->Window.Handle, NULL, 0, 0, 0, 0,
994 SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED); */
997 #if defined(_WIN32_WCE)
998 ShowWindow( window->Window.Handle, SW_SHOW );
1000 ShowWindow( window->Window.Handle,
1001 fgState.ForceIconic ? SW_SHOWMINIMIZED : SW_SHOW );
1002 #endif /* defined(_WIN32_WCE) */
1004 UpdateWindow( window->Window.Handle );
1005 ShowCursor( TRUE ); /* XXX Old comments say "hide cursor"! */
1009 fgSetWindow( window );
1011 window->Window.DoubleBuffered =
1012 ( fgState.DisplayMode & GLUT_DOUBLE ) ? 1 : 0;
1014 if ( ! window->Window.DoubleBuffered )
1016 glDrawBuffer ( GL_FRONT );
1017 glReadBuffer ( GL_FRONT );
1022 * Closes a window, destroying the frame and OpenGL context
1024 void fgCloseWindow( SFG_Window* window )
1026 #if TARGET_HOST_POSIX_X11
1028 if( window->Window.Context )
1029 glXDestroyContext( fgDisplay.Display, window->Window.Context );
1030 XFree( window->Window.FBConfig );
1031 XDestroyWindow( fgDisplay.Display, window->Window.Handle );
1032 /* XFlush( fgDisplay.Display ); */ /* XXX Shouldn't need this */
1034 #elif TARGET_HOST_MS_WINDOWS
1036 /* Make sure we don't close a window with current context active */
1037 if( fgStructure.CurrentWindow == window )
1038 wglMakeCurrent( NULL, NULL );
1041 * Step through the list of windows. If the rendering context
1042 * is not being used by another window, then we delete it.
1048 for( iter = (SFG_Window *)fgStructure.Windows.First;
1050 iter = (SFG_Window *)iter->Node.Next )
1052 if( ( iter->Window.Context == window->Window.Context ) &&
1053 ( iter != window ) )
1058 wglDeleteContext( window->Window.Context );
1061 DestroyWindow( window->Window.Handle );
1066 /* -- INTERFACE FUNCTIONS -------------------------------------------------- */
1069 * Creates a new top-level freeglut window
1071 int FGAPIENTRY glutCreateWindow( const char* title )
1073 /* XXX GLUT does not exit; it simply calls "glutInit" quietly if the
1074 * XXX application has not already done so. The "freeglut" community
1075 * XXX decided not to go this route (freeglut-developer e-mail from
1076 * XXX Steve Baker, 12/16/04, 4:22 PM CST, "Re: [Freeglut-developer]
1077 * XXX Desired 'freeglut' behaviour when there is no current window"
1079 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCreateWindow" );
1081 return fgCreateWindow( NULL, title, fgState.Position.Use,
1082 fgState.Position.X, fgState.Position.Y,
1083 fgState.Size.Use, fgState.Size.X, fgState.Size.Y,
1084 GL_FALSE, GL_FALSE )->ID;
1088 * This function creates a sub window.
1090 int FGAPIENTRY glutCreateSubWindow( int parentID, int x, int y, int w, int h )
1093 SFG_Window* window = NULL;
1094 SFG_Window* parent = NULL;
1096 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCreateSubWindow" );
1097 parent = fgWindowByID( parentID );
1098 freeglut_return_val_if_fail( parent != NULL, 0 );
1101 x = parent->State.Width + x ;
1102 if ( w >= 0 ) x -= w ;
1105 if ( w < 0 ) w = parent->State.Width - x + w ;
1114 y = parent->State.Height + y ;
1115 if ( h >= 0 ) y -= h ;
1118 if ( h < 0 ) h = parent->State.Height - y + h ;
1125 window = fgCreateWindow( parent, "", GL_TRUE, x, y, GL_TRUE, w, h, GL_FALSE, GL_FALSE );
1132 * Destroys a window and all of its subwindows
1134 void FGAPIENTRY glutDestroyWindow( int windowID )
1137 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDestroyWindow" );
1138 window = fgWindowByID( windowID );
1139 freeglut_return_if_fail( window != NULL );
1141 fgExecutionState ExecState = fgState.ExecState;
1142 fgAddToWindowDestroyList( window );
1143 fgState.ExecState = ExecState;
1148 * This function selects the current window
1150 void FGAPIENTRY glutSetWindow( int ID )
1152 SFG_Window* window = NULL;
1154 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindow" );
1155 if( fgStructure.CurrentWindow != NULL )
1156 if( fgStructure.CurrentWindow->ID == ID )
1159 window = fgWindowByID( ID );
1160 if( window == NULL )
1162 fgWarning( "glutSetWindow(): window ID %d not found!", ID );
1166 fgSetWindow( window );
1170 * This function returns the ID number of the current window, 0 if none exists
1172 int FGAPIENTRY glutGetWindow( void )
1174 SFG_Window *win = fgStructure.CurrentWindow;
1176 * Since GLUT did not throw an error if this function was called without a prior call to
1177 * "glutInit", this function shouldn't do so here. Instead let us return a zero.
1178 * See Feature Request "[ 1307049 ] glutInit check".
1180 if ( ! fgState.Initialised )
1183 while ( win && win->IsMenu )
1185 return win ? win->ID : 0;
1189 * This function makes the current window visible
1191 void FGAPIENTRY glutShowWindow( void )
1193 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutShowWindow" );
1194 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutShowWindow" );
1196 #if TARGET_HOST_POSIX_X11
1198 XMapWindow( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle );
1199 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1201 #elif TARGET_HOST_MS_WINDOWS
1203 ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_SHOW );
1207 fgStructure.CurrentWindow->State.Redisplay = GL_TRUE;
1211 * This function hides the current window
1213 void FGAPIENTRY glutHideWindow( void )
1215 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutHideWindow" );
1216 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutHideWindow" );
1218 #if TARGET_HOST_POSIX_X11
1220 if( fgStructure.CurrentWindow->Parent == NULL )
1221 XWithdrawWindow( fgDisplay.Display,
1222 fgStructure.CurrentWindow->Window.Handle,
1225 XUnmapWindow( fgDisplay.Display,
1226 fgStructure.CurrentWindow->Window.Handle );
1227 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1229 #elif TARGET_HOST_MS_WINDOWS
1231 ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_HIDE );
1235 fgStructure.CurrentWindow->State.Redisplay = GL_FALSE;
1239 * Iconify the current window (top-level windows only)
1241 void FGAPIENTRY glutIconifyWindow( void )
1243 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutIconifyWindow" );
1244 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutIconifyWindow" );
1246 fgStructure.CurrentWindow->State.Visible = GL_FALSE;
1247 #if TARGET_HOST_POSIX_X11
1249 XIconifyWindow( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle,
1251 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1253 #elif TARGET_HOST_MS_WINDOWS
1255 ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_MINIMIZE );
1259 fgStructure.CurrentWindow->State.Redisplay = GL_FALSE;
1263 * Set the current window's title
1265 void FGAPIENTRY glutSetWindowTitle( const char* title )
1267 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindowTitle" );
1268 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetWindowTitle" );
1269 if( ! fgStructure.CurrentWindow->Parent )
1271 #if TARGET_HOST_POSIX_X11
1275 text.value = (unsigned char *) title;
1276 text.encoding = XA_STRING;
1278 text.nitems = strlen( title );
1282 fgStructure.CurrentWindow->Window.Handle,
1286 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1288 #elif TARGET_HOST_MS_WINDOWS
1291 wchar_t* wstr = fghWstrFromStr(title);
1292 SetWindowText( fgStructure.CurrentWindow->Window.Handle, wstr );
1296 SetWindowText( fgStructure.CurrentWindow->Window.Handle, title );
1304 * Set the current window's iconified title
1306 void FGAPIENTRY glutSetIconTitle( const char* title )
1308 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetIconTitle" );
1309 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetIconTitle" );
1311 if( ! fgStructure.CurrentWindow->Parent )
1313 #if TARGET_HOST_POSIX_X11
1317 text.value = (unsigned char *) title;
1318 text.encoding = XA_STRING;
1320 text.nitems = strlen( title );
1324 fgStructure.CurrentWindow->Window.Handle,
1328 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1330 #elif TARGET_HOST_MS_WINDOWS
1333 wchar_t* wstr = fghWstrFromStr(title);
1334 SetWindowText( fgStructure.CurrentWindow->Window.Handle, wstr );
1338 SetWindowText( fgStructure.CurrentWindow->Window.Handle, title );
1346 * Change the current window's size
1348 void FGAPIENTRY glutReshapeWindow( int width, int height )
1350 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutReshapeWindow" );
1351 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutReshapeWindow" );
1353 if (glutGet(GLUT_FULL_SCREEN))
1355 /* Leave full screen state before resizing. */
1356 glutFullScreenToggle();
1359 fgStructure.CurrentWindow->State.NeedToResize = GL_TRUE;
1360 fgStructure.CurrentWindow->State.Width = width ;
1361 fgStructure.CurrentWindow->State.Height = height;
1365 * Change the current window's position
1367 void FGAPIENTRY glutPositionWindow( int x, int y )
1369 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPositionWindow" );
1370 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPositionWindow" );
1372 if (glutGet(GLUT_FULL_SCREEN))
1374 /* Leave full screen state before moving. */
1375 glutFullScreenToggle();
1378 #if TARGET_HOST_POSIX_X11
1380 XMoveWindow( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle,
1382 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1384 #elif TARGET_HOST_MS_WINDOWS
1389 /* "GetWindowRect" returns the pixel coordinates of the outside of the window */
1390 GetWindowRect( fgStructure.CurrentWindow->Window.Handle, &winRect );
1392 fgStructure.CurrentWindow->Window.Handle,
1395 winRect.right - winRect.left,
1396 winRect.bottom - winRect.top,
1405 * Lowers the current window (by Z order change)
1407 void FGAPIENTRY glutPushWindow( void )
1409 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPushWindow" );
1410 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPushWindow" );
1412 #if TARGET_HOST_POSIX_X11
1414 XLowerWindow( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle );
1416 #elif TARGET_HOST_MS_WINDOWS
1419 fgStructure.CurrentWindow->Window.Handle,
1422 SWP_NOSIZE | SWP_NOMOVE
1429 * Raises the current window (by Z order change)
1431 void FGAPIENTRY glutPopWindow( void )
1433 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPopWindow" );
1434 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPopWindow" );
1436 #if TARGET_HOST_POSIX_X11
1438 XRaiseWindow( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle );
1440 #elif TARGET_HOST_MS_WINDOWS
1443 fgStructure.CurrentWindow->Window.Handle,
1446 SWP_NOSIZE | SWP_NOMOVE
1453 * Resize the current window so that it fits the whole screen
1455 void FGAPIENTRY glutFullScreen( void )
1457 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutFullScreen" );
1458 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutFullScreen" );
1460 if (glutGet(GLUT_FULL_SCREEN))
1462 /* Leave full screen state before resizing. */
1463 glutFullScreenToggle();
1467 #if TARGET_HOST_POSIX_X11
1469 Status status; /* Returned by XGetWindowAttributes(), not checked. */
1470 XWindowAttributes attributes;
1472 status = XGetWindowAttributes(fgDisplay.Display,
1473 fgStructure.CurrentWindow->Window.Handle,
1476 * The "x" and "y" members of "attributes" are the window's coordinates
1477 * relative to its parent, i.e. to the decoration window.
1479 XMoveResizeWindow(fgDisplay.Display,
1480 fgStructure.CurrentWindow->Window.Handle,
1483 fgDisplay.ScreenWidth,
1484 fgDisplay.ScreenHeight);
1486 #elif TARGET_HOST_MS_WINDOWS && !defined(_WIN32_WCE) /* FIXME: what about WinCE */
1489 /* For fullscreen mode, force the top-left corner to 0,0
1490 * and adjust the window rectangle so that the client area
1491 * covers the whole screen.
1496 rect.right = fgDisplay.ScreenWidth;
1497 rect.bottom = fgDisplay.ScreenHeight;
1499 AdjustWindowRect ( &rect, WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS |
1500 WS_CLIPCHILDREN, FALSE );
1503 * SWP_NOACTIVATE Do not activate the window
1504 * SWP_NOOWNERZORDER Do not change position in z-order
1505 * SWP_NOSENDCHANGING Supress WM_WINDOWPOSCHANGING message
1506 * SWP_NOZORDER Retains the current Z order (ignore 2nd param)
1509 SetWindowPos( fgStructure.CurrentWindow->Window.Handle,
1513 rect.right - rect.left,
1514 rect.bottom - rect.top,
1515 SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING |
1523 * Toggle the window's full screen state.
1525 void FGAPIENTRY glutFullScreenToggle( void )
1527 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutFullScreenToggle" );
1528 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutFullScreenToggle" );
1531 #if TARGET_HOST_POSIX_X11
1533 if (fgDisplay.StateFullScreen != None)
1539 xevent.type = ClientMessage;
1540 xevent.xclient.type = ClientMessage;
1541 xevent.xclient.serial = 0;
1542 xevent.xclient.send_event = True;
1543 xevent.xclient.display = fgDisplay.Display;
1544 xevent.xclient.window = fgStructure.CurrentWindow->Window.Handle;
1545 xevent.xclient.message_type = fgDisplay.State;
1546 xevent.xclient.format = 32;
1547 xevent.xclient.data.l[0] = 2; /* _NET_WM_STATE_TOGGLE */
1548 xevent.xclient.data.l[1] = fgDisplay.StateFullScreen;
1549 xevent.xclient.data.l[2] = 0;
1550 xevent.xclient.data.l[3] = 0;
1551 xevent.xclient.data.l[4] = 0;
1553 /*** Don't really understand how event masks work... ***/
1554 event_mask = SubstructureRedirectMask | SubstructureNotifyMask;
1556 status = XSendEvent(fgDisplay.Display,
1557 fgDisplay.RootWindow,
1561 FREEGLUT_INTERNAL_ERROR_EXIT(status != 0,
1562 "XSendEvent failed",
1563 "glutFullScreenToggle");
1569 * If the window manager is not Net WM compliant, fall back to legacy
1578 * A.Donev: Set and retrieve the window's user data
1580 void* FGAPIENTRY glutGetWindowData( void )
1582 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGetWindowData" );
1583 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutGetWindowData" );
1584 return fgStructure.CurrentWindow->UserData;
1587 void FGAPIENTRY glutSetWindowData(void* data)
1589 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindowData" );
1590 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetWindowData" );
1591 fgStructure.CurrentWindow->UserData = data;
1594 /*** END OF FILE ***/