4 * The freeglut library private include file.
6 * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
7 * Written by Pawel W. Olszta, <olszta@sourceforge.net>
8 * Creation date: Thu Dec 2 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 #ifndef FREEGLUT_INTERNAL_H
29 #define FREEGLUT_INTERNAL_H
31 /* XXX Update these for each release! */
32 #define VERSION_MAJOR 2
33 #define VERSION_MINOR 2
34 #define VERSION_PATCH 0
36 /* Freeglut is meant to be available under all Unix/X11 and Win32 platforms. */
37 #if defined(_WIN32_WCE)
38 # define TARGET_HOST_UNIX_X11 0
39 # define TARGET_HOST_WIN32 0
40 # define TARGET_HOST_WINCE 1
41 #elif defined(_MSC_VER) || defined(__CYGWIN__) || defined(__MINGW32__)
42 # define TARGET_HOST_UNIX_X11 0
43 # define TARGET_HOST_WIN32 1
44 # define TARGET_HOST_WINCE 0
46 # define TARGET_HOST_UNIX_X11 1
47 # define TARGET_HOST_WIN32 0
48 # define TARGET_HOST_WINCE 0
51 #define FREEGLUT_MAX_MENUS 3
53 /* Somehow all Win32 include headers depend on this one: */
62 #define strdup _strdup
65 /* Those files should be available on every platform. */
74 #if TARGET_HOST_UNIX_X11
79 /* The system-dependant include files should go here: */
80 #if TARGET_HOST_UNIX_X11
83 #include <X11/Xatom.h>
84 #include <X11/keysym.h>
86 #ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
87 #include <X11/extensions/xf86vmode.h>
91 /* Microsoft VisualC++ 5.0's <math.h> does not define the PI */
93 # define M_PI 3.14159265358979323846
104 /* -- GLOBAL TYPE DEFINITIONS ---------------------------------------------- */
106 /* Freeglut callbacks type definitions */
107 typedef void (* FGCBDisplay )( void );
108 typedef void (* FGCBReshape )( int, int );
109 typedef void (* FGCBVisibility )( int );
110 typedef void (* FGCBKeyboard )( unsigned char, int, int );
111 typedef void (* FGCBSpecial )( int, int, int );
112 typedef void (* FGCBMouse )( int, int, int, int );
113 typedef void (* FGCBMouseWheel )( int, int, int, int );
114 typedef void (* FGCBMotion )( int, int );
115 typedef void (* FGCBPassive )( int, int );
116 typedef void (* FGCBEntry )( int );
117 typedef void (* FGCBWindowStatus )( int );
118 typedef void (* FGCBSelect )( int, int, int );
119 typedef void (* FGCBJoystick )( unsigned int, int, int, int );
120 typedef void (* FGCBKeyboardUp )( unsigned char, int, int );
121 typedef void (* FGCBSpecialUp )( int, int, int );
122 typedef void (* FGCBOverlayDisplay)( void );
123 typedef void (* FGCBSpaceMotion )( int, int, int );
124 typedef void (* FGCBSpaceRotation )( int, int, int );
125 typedef void (* FGCBSpaceButton )( int, int );
126 typedef void (* FGCBDials )( int, int );
127 typedef void (* FGCBButtonBox )( int, int );
128 typedef void (* FGCBTabletMotion )( int, int );
129 typedef void (* FGCBTabletButton )( int, int, int, int );
130 typedef void (* FGCBDestroy )( void );
132 /* The global callbacks type definitions */
133 typedef void (* FGCBIdle )( void );
134 typedef void (* FGCBTimer )( int );
135 typedef void (* FGCBMenuState )( int );
136 typedef void (* FGCBMenuStatus )( int, int, int );
138 /* The callback used when creating/using menus */
139 typedef void (* FGCBMenu )( int );
142 /* A list structure */
143 typedef struct tagSFG_List SFG_List;
150 /* A list node structure */
151 typedef struct tagSFG_Node SFG_Node;
158 /* A helper structure holding two ints and a boolean */
159 typedef struct tagSFG_XYUse SFG_XYUse;
162 GLint X, Y; /* The two integers... */
163 GLboolean Use; /* ...and a single boolean. */
166 /* A helper structure holding a timeval and a boolean */
167 typedef struct tagSFG_Time SFG_Time;
173 struct timeval Value;
179 * An enumeration containing the state of the GLUT execution:
180 * initializing, running, or stopping
184 GLUT_EXEC_STATE_INIT,
185 GLUT_EXEC_STATE_RUNNING,
189 /* This structure holds different freeglut settings */
190 typedef struct tagSFG_State SFG_State;
193 SFG_XYUse Position; /* The default windows' position */
194 SFG_XYUse Size; /* The default windows' size */
195 unsigned int DisplayMode; /* Display mode for new windows */
197 GLboolean Initialised; /* freeglut has been initialised */
199 int DirectContext; /* Direct rendering state */
201 GLboolean ForceIconic; /* New top windows are iconified */
202 GLboolean UseCurrentContext; /* New windows share with current */
204 GLboolean GLDebugSwitch; /* OpenGL state debugging switch */
205 GLboolean XSyncSwitch; /* X11 sync protocol switch */
207 int KeyRepeat; /* Global key repeat mode. */
208 int Modifiers; /* Current ALT/SHIFT/CTRL state */
210 GLuint FPSInterval; /* Interval between FPS printfs */
211 GLuint SwapCount; /* Count of glutSwapBuffer calls */
212 GLuint SwapTime; /* Time of last SwapBuffers */
214 SFG_Time Time; /* Time that glutInit was called */
215 SFG_List Timers; /* The freeglut timer hooks */
216 SFG_List FreeTimers; /* The unused timer hooks */
218 FGCBIdle IdleCallback; /* The global idle callback */
220 int ActiveMenus; /* Num. of currently active menus */
221 FGCBMenuState MenuStateCallback; /* Menu callbacks are global */
222 FGCBMenuStatus MenuStatusCallback;
224 SFG_XYUse GameModeSize; /* Game mode screen's dimensions */
225 int GameModeDepth; /* The pixel depth for game mode */
226 int GameModeRefresh; /* The refresh rate for game mode */
228 int ActionOnWindowClose; /* Action when user closes window */
230 fgExecutionState ExecState; /* Used for GLUT termination */
231 char *ProgramName; /* Name of the invoking program */
234 /* The structure used by display initialization in freeglut_init.c */
235 typedef struct tagSFG_Display SFG_Display;
236 struct tagSFG_Display
238 #if TARGET_HOST_UNIX_X11
239 Display* Display; /* The display we are being run in. */
240 int Screen; /* The screen we are about to use. */
241 Window RootWindow; /* The screen's root window. */
242 int Connection; /* The display's connection number */
243 Atom DeleteWindow; /* The window deletion atom */
245 #ifdef X_XF86VidModeGetModeLine
247 * XF86VidMode may be compilable even if it fails at runtime. Therefore,
248 * the validity of the VidMode has to be tracked
250 int DisplayModeValid; /* Flag that indicates runtime status*/
251 XF86VidModeModeLine DisplayMode; /* Current screen's display settings */
252 int DisplayModeClock; /* The display mode's refresh rate */
253 int DisplayViewPortX; /* saved X location of the viewport */
254 int DisplayViewPortY; /* saved Y location of the viewport */
255 int DisplayPointerX; /* saved X location of the pointer */
256 int DisplayPointerY; /* saved Y location of the pointer */
260 #elif TARGET_HOST_WIN32 || TARGET_HOST_WINCE
261 HINSTANCE Instance; /* The application's instance */
262 DEVMODE DisplayMode; /* Desktop's display settings */
266 int ScreenWidth; /* The screen's width in pixels */
267 int ScreenHeight; /* The screen's height in pixels */
268 int ScreenWidthMM; /* The screen's width in milimeters */
269 int ScreenHeightMM; /* The screen's height in milimeters */
273 /* The user can create any number of timer hooks */
274 typedef struct tagSFG_Timer SFG_Timer;
278 int ID; /* The timer ID integer */
279 FGCBTimer Callback; /* The timer callback */
280 long TriggerTime; /* The timer trigger time */
284 * Make "freeglut" window handle and context types so that we don't need so
285 * much conditionally-compiled code later in the library.
287 #if TARGET_HOST_UNIX_X11
289 typedef Window SFG_WindowHandleType ;
290 typedef GLXContext SFG_WindowContextType ;
292 #elif TARGET_HOST_WIN32 || TARGET_HOST_WINCE
294 typedef HWND SFG_WindowHandleType ;
295 typedef HGLRC SFG_WindowContextType ;
300 * A window and its OpenGL context. The contents of this structure
301 * are highly dependant on the target operating system we aim at...
303 typedef struct tagSFG_Context SFG_Context;
304 struct tagSFG_Context
306 SFG_WindowHandleType Handle; /* The window's handle */
307 SFG_WindowContextType Context; /* The window's OpenGL/WGL context */
309 #if TARGET_HOST_UNIX_X11
310 XVisualInfo* VisualInfo; /* The window's visual information */
311 Pixmap Pixmap; /* Used for offscreen rendering */
312 /* GLXPixmap GLXPixMap; */ /* Used for offscreen rendering */
313 #elif TARGET_HOST_WIN32 || TARGET_HOST_WINCE
314 HDC Device; /* The window's device context */
317 int DoubleBuffered; /* Treat the window as double-buffered */
320 /* Window's state description. This structure should be kept portable. */
321 typedef struct tagSFG_WindowState SFG_WindowState;
322 struct tagSFG_WindowState
324 int Width; /* Window's width in pixels */
325 int Height; /* The same about the height */
326 int OldWidth; /* Window width from before a resize */
327 int OldHeight; /* " height " " " " */
329 GLboolean Redisplay; /* Do we have to redisplay? */
330 GLboolean Visible; /* Is the window visible now */
332 int Cursor; /* The currently selected cursor */
334 long JoystickPollRate; /* The joystick polling rate */
335 long JoystickLastPoll; /* When the last poll happened */
337 int MouseX, MouseY; /* The most recent mouse position */
339 GLboolean IgnoreKeyRepeat; /* Whether to ignore key repeat. */
340 GLboolean KeyRepeating; /* Currently in repeat mode */
342 GLboolean IsGameMode; /* Is this the game mode window? */
343 GLboolean NeedToResize; /* Do we need to resize the window? */
348 * SET_WCB() is used as:
350 * SET_WCB( window, Visibility, func );
352 * ...where {window} is the freeglut window to set the callback,
353 * {Visibility} is the window-specific callback to set,
354 * {func} is a function-pointer.
356 * Originally, {FETCH_WCB( ... ) = func} was rather sloppily used,
357 * but this can cause warnings because the FETCH_WCB() macro type-
358 * casts its result, and a type-cast value shouldn't be an lvalue.
360 * The {if( FETCH_WCB( ... ) != func )} test is to do type-checking
361 * and for no other reason. Since it's hidden in the macro, the
362 * ugliness is felt to be rather benign.
364 #define SET_WCB(window,cbname,func) \
367 if( FETCH_WCB( window, cbname ) != func ) \
368 (((window).CallBacks[CB_ ## cbname]) = (void *) func); \
372 * FETCH_WCB() is used as:
374 * FETCH_WCB( window, Visibility );
376 * ...where {window} is the freeglut window to fetch the callback from,
377 * {Visibility} is the window-specific callback to fetch.
379 * The result is correctly type-cast to the callback function pointer
382 #define FETCH_WCB(window,cbname) \
383 ((FGCB ## cbname)((window).CallBacks[CB_ ## cbname]))
386 * INVOKE_WCB() is used as:
388 * INVOKE_WCB( window, Visibility, ( status ) );
390 * ...where {window} is the freeglut window,
391 * {Visibility} is the window-specific callback,
392 * {(status)} is the parameter list.
394 * The callback is invoked as:
396 * callback( status );
398 * ...so the parentheses are REQUIRED in the {arg_list}.
400 * NOTE that it does a sanity-check and also sets the
404 #define INVOKE_WCB(window,cbname,arg_list) \
407 if( FETCH_WCB( window, cbname ) ) \
409 fgSetWindow( &window ); \
410 FETCH_WCB( window, cbname ) arg_list; \
415 * The window callbacks the user can supply us with. Should be kept portable.
417 * This enumeration provides the freeglut CallBack numbers.
418 * The symbolic constants are indices into a window's array of
419 * function callbacks. The names are formed by splicing a common
420 * prefix onto the callback's base name. (This was originally
421 * done so that an early stage of development could live side-by-
422 * side with the old callback code. The old callback code used
423 * the bare callback's name as a structure member, so I used a
424 * prefix for the array index name.)
426 * XXX For consistancy, perhaps the prefix should match the
427 * XXX FETCH* and INVOKE* macro suffices. I.e., WCB_, rather than
448 /* Presently ignored */
459 /* Always make this the LAST one */
464 /* This structure holds the OpenGL rendering context for all the menu windows */
465 typedef struct tagSFG_MenuContext SFG_MenuContext;
466 struct tagSFG_MenuContext
468 #if TARGET_HOST_UNIX_X11
469 XVisualInfo* VisualInfo; /* The window's visual information */
472 SFG_WindowContextType Context; /* The menu window's WGL context */
475 /* This structure describes a menu */
476 typedef struct tagSFG_Window SFG_Window;
477 typedef struct tagSFG_MenuEntry SFG_MenuEntry;
478 typedef struct tagSFG_Menu SFG_Menu;
482 void *UserData; /* User data passed back at callback */
483 int ID; /* The global menu ID */
484 SFG_List Entries; /* The menu entries list */
485 FGCBMenu Callback; /* The menu callback */
486 FGCBDestroy Destroy; /* Destruction callback */
487 GLboolean IsActive; /* Is the menu selected? */
488 int Width; /* Menu box width in pixels */
489 int Height; /* Menu box height in pixels */
490 int X, Y; /* Menu box raster position */
492 SFG_MenuEntry *ActiveEntry; /* Currently active entry in the menu */
493 SFG_Window *Window; /* Window for menu */
494 SFG_Window *ParentWindow; /* Window in which the menu is defined */
497 /* This is a menu entry */
498 struct tagSFG_MenuEntry
501 int ID; /* The menu entry ID (local) */
502 int Ordinal; /* The menu's ordinal number */
503 char* Text; /* The text to be displayed */
504 SFG_Menu* SubMenu; /* Optional sub-menu tree */
505 GLboolean IsActive; /* Is the entry highlighted? */
506 int Width; /* Label's width in pixels */
510 * A window, making part of freeglut windows hierarchy.
511 * Should be kept portable.
516 int ID; /* Window's ID number */
518 SFG_Context Window; /* Window and OpenGL context */
519 SFG_WindowState State; /* The window state */
520 void *CallBacks[ TOTAL_CALLBACKS ]; /* Array of window callbacks */
521 void *UserData ; /* For use by user */
523 SFG_Menu* Menu[ FREEGLUT_MAX_MENUS ]; /* Menus appended to window */
524 SFG_Menu* ActiveMenu; /* The window's active menu */
526 SFG_Window* Parent; /* The parent to this window */
527 SFG_List Children; /* The subwindows d.l. list */
529 GLboolean IsMenu; /* Set to 1 if we are a menu */
533 /* A linked list structure of windows */
534 typedef struct tagSFG_WindowList SFG_WindowList ;
535 struct tagSFG_WindowList
541 /* This holds information about all the windows, menus etc. */
542 typedef struct tagSFG_Structure SFG_Structure;
543 struct tagSFG_Structure
545 SFG_List Windows; /* The global windows list */
546 SFG_List Menus; /* The global menus list */
547 SFG_List WindowsToDestroy;
549 SFG_Window* Window; /* The currently active win. */
550 SFG_Menu* Menu; /* Same, but menu... */
552 SFG_MenuContext* MenuContext; /* OpenGL rendering context for menus */
554 SFG_Window* GameMode; /* The game mode window */
556 int WindowID; /* The new current window ID */
557 int MenuID; /* The new current menu ID */
561 * This structure is used for the enumeration purposes.
562 * You can easily extend its functionalities by declaring
563 * a structure containing enumerator's contents and custom
564 * data, then casting its pointer to (SFG_Enumerator *).
566 typedef struct tagSFG_Enumerator SFG_Enumerator;
567 struct tagSFG_Enumerator
569 GLboolean found; /* Used to terminate search */
570 void* data; /* Custom data pointer */
572 typedef void (* FGCBenumerator )( SFG_Window *, SFG_Enumerator * );
574 /* The bitmap font structure */
575 typedef struct tagSFG_Font SFG_Font;
578 char* Name; /* The source font name */
579 int Quantity; /* Number of chars in font */
580 int Height; /* Height of the characters */
581 const GLubyte** Characters; /* The characters mapping */
583 float xorig, yorig; /* Relative origin of the character */
586 /* The stroke font structures */
588 typedef struct tagSFG_StrokeVertex SFG_StrokeVertex;
589 struct tagSFG_StrokeVertex
594 typedef struct tagSFG_StrokeStrip SFG_StrokeStrip;
595 struct tagSFG_StrokeStrip
598 const SFG_StrokeVertex* Vertices;
601 typedef struct tagSFG_StrokeChar SFG_StrokeChar;
602 struct tagSFG_StrokeChar
606 const SFG_StrokeStrip* Strips;
609 typedef struct tagSFG_StrokeFont SFG_StrokeFont;
610 struct tagSFG_StrokeFont
612 char* Name; /* The source font name */
613 int Quantity; /* Number of chars in font */
614 GLfloat Height; /* Height of the characters */
615 const SFG_StrokeChar** Characters; /* The characters mapping */
618 /* -- GLOBAL VARIABLES EXPORTS --------------------------------------------- */
620 /* Freeglut display related stuff (initialized once per session) */
621 extern SFG_Display fgDisplay;
623 /* Freeglut internal structure */
624 extern SFG_Structure fgStructure;
626 /* The current freeglut settings */
627 extern SFG_State fgState;
630 /* -- PRIVATE FUNCTION DECLARATIONS ---------------------------------------- */
633 * A call to this function makes us sure that the Display and Structure
634 * subsystems have been properly initialized and are ready to be used
636 #define freeglut_assert_ready assert( fgState.Initialised );
639 * Following definitions are somewhat similiar to GLib's,
640 * but do not generate any log messages:
642 #define freeglut_return_if_fail( expr ) \
645 #define freeglut_return_val_if_fail( expr, val ) \
650 * A call to those macros assures us that there is a current
651 * window and menu set, respectively:
653 #define freeglut_assert_window assert( fgStructure.Window != NULL );
654 #define freeglut_assert_menu assert( fgStructure.Menu != NULL );
657 * The initialize and deinitialize functions get called on glutInit()
658 * and glutMainLoop() end respectively. They should create/clean up
659 * everything inside of the freeglut
661 void fgInitialize( const char* displayName );
662 void fgDeinitialize( void );
665 * Those two functions are used to create/destroy the freeglut internal
666 * structures. This actually happens when calling glutInit() and when
667 * quitting the glutMainLoop() (which actually happens, when all windows
670 void fgCreateStructure( void );
671 void fgDestroyStructure( void );
673 /* A helper function to check if a display mode is possible to use */
674 #if TARGET_HOST_UNIX_X11
675 XVisualInfo* fgChooseVisual( void );
678 /* The window procedure for Win32 events handling */
679 #if TARGET_HOST_WIN32 || TARGET_HOST_WINCE
680 LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg,
681 WPARAM wParam, LPARAM lParam );
682 GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly,
683 unsigned char layer_type );
687 * Window creation, opening, closing and destruction.
688 * Also CallBack clearing/initialization.
689 * Defined in freeglut_structure.c, freeglut_window.c.
691 SFG_Window* fgCreateWindow( SFG_Window* parent, const char* title,
692 int x, int y, int w, int h,
693 GLboolean gameMode, GLboolean isMenu );
694 void fgSetWindow ( SFG_Window *window );
695 void fgOpenWindow( SFG_Window* window, const char* title,
696 int x, int y, int w, int h, GLboolean gameMode,
697 GLboolean isSubWindow );
698 void fgCloseWindow( SFG_Window* window );
699 void fgAddToWindowDestroyList ( SFG_Window* window );
700 void fgCloseWindows ();
701 void fgDestroyWindow( SFG_Window* window );
702 void fgClearCallBacks( SFG_Window *window );
704 /* Menu creation and destruction. Defined in freeglut_structure.c */
705 SFG_Menu* fgCreateMenu( FGCBMenu menuCallback );
706 void fgDestroyMenu( SFG_Menu* menu );
708 /* Joystick device management functions, defined in freeglut_joystick.c */
709 void fgJoystickInit( int ident );
710 void fgJoystickClose( void );
711 void fgJoystickPollWindow( SFG_Window* window );
714 * Helper function to enumerate through all registered windows
715 * and one to enumerate all of a window's subwindows...
717 * The GFunc callback for those functions will be defined as:
719 * void enumCallback( gpointer window, gpointer enumerator );
721 * where window is the enumerated (sub)window pointer (SFG_Window *),
722 * and userData is the a custom user-supplied pointer. Functions
723 * are defined and exported from freeglut_structure.c file.
725 void fgEnumWindows( FGCBenumerator enumCallback, SFG_Enumerator* enumerator );
726 void fgEnumSubWindows( SFG_Window* window, FGCBenumerator enumCallback,
727 SFG_Enumerator* enumerator );
730 * fgWindowByHandle returns a (SFG_Window *) value pointing to the
731 * first window in the queue matching the specified window handle.
732 * The function is defined in freeglut_structure.c file.
734 SFG_Window* fgWindowByHandle( SFG_WindowHandleType hWindow );
737 * This function is similiar to the previous one, except it is
738 * looking for a specified (sub)window identifier. The function
739 * is defined in freeglut_structure.c file.
741 SFG_Window* fgWindowByID( int windowID );
744 * Looks up a menu given its ID. This is easier than fgWindowByXXX
745 * as all menus are placed in a single doubly linked list...
747 SFG_Menu* fgMenuByID( int menuID );
750 * The menu activation and deactivation the code. This is the meat
751 * of the menu user interface handling code...
753 void fgActivateMenu( SFG_Window* window, int button );
754 void fgExecuteMenuCallback( SFG_Menu* menu );
755 GLboolean fgCheckActiveMenu ( SFG_Window *window, SFG_Menu *menu );
756 void fgDeactivateMenu( SFG_Window *window );
757 void fgDeactivateSubMenu( SFG_MenuEntry *menuEntry );
760 * This function gets called just before the buffers swap, so that
761 * freeglut can display the pull-down menus via OpenGL. The function
762 * is defined in freeglut_menu.c file.
764 void fgDisplayMenu( void );
767 * Display the mouse cursor using OpenGL calls. The function
768 * is defined in freeglut_cursor.c file.
770 void fgDisplayCursor( void );
772 /* Elapsed time as per glutGet(GLUT_ELAPSED_TIME). */
773 long fgElapsedTime( void );
776 void fgListInit(SFG_List *list);
777 void fgListAppend(SFG_List *list, SFG_Node *node);
778 void fgListRemove(SFG_List *list, SFG_Node *node);
779 int fgListLength(SFG_List *list);
780 void fgListInsert(SFG_List *list, SFG_Node *next, SFG_Node *node);
782 /* Error Message functions */
783 void fgError( const char *fmt, ... );
784 void fgWarning( const char *fmt, ... );
786 #endif /* FREEGLUT_INTERNAL_H */
788 /*** END OF FILE ***/