#endif
#include "fg_version.h"
+#include "fg_callback_macros.h"
/* Freeglut is intended to function under all Unix/X11 and Win32 platforms. */
/* XXX: Don't all MS-Windows compilers (except Cygwin) have _WIN32 defined?
* XXX: If so, remove the first set of defined()'s below.
*/
-#if !defined(TARGET_HOST_POSIX_X11) && !defined(TARGET_HOST_MS_WINDOWS) && !defined(TARGET_HOST_MAC_OSX) && !defined(TARGET_HOST_SOLARIS)
+#if !defined(TARGET_HOST_POSIX_X11) && !defined(TARGET_HOST_MS_WINDOWS) && !defined(TARGET_HOST_MAC_OSX) && !defined(TARGET_HOST_SOLARIS) && \
+ !defined(TARGET_HOST_ANDROID) && !defined(TARGET_HOST_BLACKBERRY) && !defined(TARGET_HOST_POSIX_WAYLAND)
#if defined(_MSC_VER) || defined(__WATCOMC__) || defined(__MINGW32__) \
|| defined(_WIN32) || defined(_WIN32_WCE) \
|| ( defined(__CYGWIN__) && defined(X_DISPLAY_MISSING) )
/* -- GLOBAL TYPE DEFINITIONS ---------------------------------------------- */
-/* Freeglut callbacks type definitions */
+/*
+ * Freeglut callbacks type definitions
+ *
+ * If anything here is modified or added, update fg_callback_macros.h functions.
+ *
+ * This is not ideal, but freeglut needs to either define minimal compiler specs,
+ * or update header every time this is changed or updated.
+ */
typedef void* FGCBUserData;
typedef void (* FGCBDisplay )( void );
typedef void (* FGCBDisplayUC )( FGCBUserData );
-#define EXPAND_WCB_SUB_Display(args, userData) EXPAND_WCB_ZERO(args, userData)
typedef void (* FGCBReshape )( int, int );
typedef void (* FGCBReshapeUC )( int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_Reshape(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBPosition )( int, int );
typedef void (* FGCBPositionUC )( int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_Position(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBVisibility )( int );
typedef void (* FGCBVisibilityUC )( int, FGCBUserData );
-#define EXPAND_WCB_SUB_Visibility(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBKeyboard )( unsigned char, int, int );
typedef void (* FGCBKeyboardUC )( unsigned char, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_Keyboard(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBKeyboardUp )( unsigned char, int, int );
typedef void (* FGCBKeyboardUpUC )( unsigned char, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_KeyboardUp(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBSpecial )( int, int, int );
typedef void (* FGCBSpecialUC )( int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_Special(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBSpecialUp )( int, int, int );
typedef void (* FGCBSpecialUpUC )( int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_SpecialUp(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBMouse )( int, int, int, int );
typedef void (* FGCBMouseUC )( int, int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_Mouse(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBMouseWheel )( int, int, int, int );
typedef void (* FGCBMouseWheelUC )( int, int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_MouseWheel(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBMotion )( int, int );
typedef void (* FGCBMotionUC )( int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_Motion(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBPassive )( int, int );
typedef void (* FGCBPassiveUC )( int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_Passive(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBEntry )( int );
typedef void (* FGCBEntryUC )( int, FGCBUserData );
-#define EXPAND_WCB_SUB_Entry(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBWindowStatus )( int );
typedef void (* FGCBWindowStatusUC )( int, FGCBUserData );
-#define EXPAND_WCB_SUB_WindowStatus(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBJoystick )( unsigned int, int, int, int );
typedef void (* FGCBJoystickUC )( unsigned int, int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_Joystick(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBOverlayDisplay )( void );
typedef void (* FGCBOverlayDisplayUC)( FGCBUserData );
-#define EXPAND_WCB_SUB_OverlayDisplay(args, userData) EXPAND_WCB_ZERO(args, userData)
typedef void (* FGCBSpaceMotion )( int, int, int );
typedef void (* FGCBSpaceMotionUC )( int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_SpaceMotion(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBSpaceRotation )( int, int, int );
typedef void (* FGCBSpaceRotationUC )( int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_SpaceRotation(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBSpaceButton )( int, int );
typedef void (* FGCBSpaceButtonUC )( int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_SpaceButton(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBDials )( int, int );
typedef void (* FGCBDialsUC )( int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_Dials(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBButtonBox )( int, int );
typedef void (* FGCBButtonBoxUC )( int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_ButtonBox(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBTabletMotion )( int, int );
typedef void (* FGCBTabletMotionUC )( int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_TabletMotion(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBTabletButton )( int, int, int, int );
typedef void (* FGCBTabletButtonUC )( int, int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_TabletButton(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBDestroy )( void ); /* Used for both window and menu destroy callbacks */
typedef void (* FGCBDestroyUC )( FGCBUserData );
-#define EXPAND_WCB_SUB_Destroy(args, userData) EXPAND_WCB_ZERO(args, userData)
typedef void (* FGCBMultiEntry )( int, int );
typedef void (* FGCBMultiEntryUC )( int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_MultiEntry(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBMultiButton )( int, int, int, int, int );
typedef void (* FGCBMultiButtonUC )( int, int, int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_MultiButton(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBMultiMotion )( int, int, int );
typedef void (* FGCBMultiMotionUC )( int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_MultiMotion(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBMultiPassive )( int, int, int );
typedef void (* FGCBMultiPassiveUC )( int, int, int, FGCBUserData );
-#define EXPAND_WCB_SUB_MultiPassive(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
typedef void (* FGCBInitContext )( void );
typedef void (* FGCBInitContextUC )( FGCBUserData );
-#define EXPAND_WCB_SUB_InitContext(args, userData) EXPAND_WCB_ZERO(args, userData)
typedef void (* FGCBAppStatus )( int );
typedef void (* FGCBAppStatusUC )( int, FGCBUserData );
-#define EXPAND_WCB_SUB_AppStatus(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
/* The global callbacks type definitions */
typedef void (* FGCBIdle )( void ); \
* The {if( FETCH_WCB( ... ) != func )} test is to do type-checking
* and for no other reason. Since it's hidden in the macro, the
* ugliness is felt to be rather benign.
+ *
+ * If the function-pointer is the same, the data will be the only
+ * value updated. If the function-pointer changes, the data will
+ * be changed as well, preventing stail data from being passed in.
+ * Just updating the data does nothing unless a function-pointer
+ * exists, as the data is otherwise already allocated.
*/
#define SET_WCB(window,cbname,func,udata) \
do \
(((window).CallBacks[WCB_ ## cbname]) = (SFG_Proc)(func)); \
(((window).CallbackDatas[WCB_ ## cbname]) = (udata)); \
} \
+ else if( FETCH_USER_DATA_WCB( window, cbname ) != udata ) \
+ { \
+ (((window).CallbackDatas[WCB_ ## cbname]) = (udata)); \
+ } \
} while( 0 )
/*
* {cbname} is the window-specific callback to be invoked,
*
* This expects a variable named "window" of type tagSFG_Window to exist.
- */
-/*
- * FETCH_USER_DATA_WCB() is used as:
- *
- * FETCH_USER_DATA_WCB( window, cbname );
- *
- * ...where {window} is the freeglut window to fetch the callback data from,
- * {cbname} is the window-specific callback data to fetch.
*
* The result is the callback data pointer.
*/
#define FETCH_USER_DATA_WCB(window,cbname) \
((window).CallbackDatas[WCB_ ## cbname])
-#if 0
/*
* EXPAND_WCB() is used as:
*
- * EXPAND_WCB arg_list
- *
- * ... where {(arg_list)} is the parameter list.
- *
- * This will take the arg_list and extend it by one argument, adding
- * the argument "userData" to the end of the list.
- *
- * All additional args are to get around trailing ',', argument counts,
- * and not needing a GCC extension to make this work.
- *
- * Minor modification of:
- * http://stackoverflow.com/questions/5355241/generating-function-declaration-using-a-macro-iteration/5355946#5355946
- *
- * Supports up to five arguments
- */
-
-/* GCC-specific design that doesn't require per-callback defines */
-
-#define PP_HAS_ARGS_IMPL2(_0, _1, _2, _3, _4, _5, N, ...) N
-#define PP_HAS_ARGS_SOURCE() \
- ONE_OR_MORE, ONE_OR_MORE, ONE_OR_MORE, ONE_OR_MORE, ONE_OR_MORE, ZERO
-
-#define PP_HAS_ARGS_IMPL(...) \
- PP_HAS_ARGS_IMPL2(__VA_ARGS__)
-#define PP_HAS_ARGS(...) \
- PP_HAS_ARGS_IMPL(NOT_EXIST, ##__VA_ARGS__, PP_HAS_ARGS_SOURCE())
-
-#define EXPAND_WCB_ZERO(x) \
- (userData)
-#define EXPAND_WCB_ONE_OR_MORE(...) \
- (__VA_ARGS__, userData)
-
-#define EXPAND_WCB_DISAMBIGUATE2(has_args, ...) \
- EXPAND_WCB_ ## has_args (__VA_ARGS__)
-#define EXPAND_WCB_DISAMBIGUATE(has_args, ...) \
- EXPAND_WCB_DISAMBIGUATE2(has_args, __VA_ARGS__)
-#define EXPAND_WCB(...) \
- EXPAND_WCB_DISAMBIGUATE(PP_HAS_ARGS(__VA_ARGS__), __VA_ARGS__)
-
-#else
-/*
- * EXPAND_WCB() is used as:
- *
- * EXPAND_WCB( cbname )( arg_list, userData )
+ * EXPAND_WCB( cbname )(( arg_list, userData ))
*
* ... where {(arg_list)} is the parameter list and userData is user
* provided data.
* This will take the arg_list and extend it by one argument, adding
* the argument "userData" to the end of the list.
*
- * In order for this to work, each callback must have a define that
- * properly handles the arguments as needed by the callback.
- * This callback is in the format of EXPAND_WCB_SUB_<cbname>.
- * Two helper defines exist: EXPAND_WCB_ZERO and EXPAND_WCB_ONE_OR_MORE,
- * each to handle callbacks that take zero-params (but take userData) and
- * to take one or more params (along with userData).
- *
- * An example for the "Entry" callback, where "Entry" is the cbname:
- * typedef void (* FGCBEntry )( int );
- * typedef void (* FGCBEntryUC)( int, FGCBUserData );
- * #define EXPAND_WCB_SUB_Entry(args, userData) EXPAND_WCB_ONE_OR_MORE(args, userData)
+ * All of this is defined in fg_callback_macros.h
+ *
+ * See that header for more info.
+ *
+ * ------------------------------------------------------------------
*/
-#define EXPAND_WCB_UNPARAN(...) __VA_ARGS__
-#define EXPAND_WCB_ZERO(args, userData) ( userData )
-#define EXPAND_WCB_ONE_OR_MORE(args, userData) ( EXPAND_WCB_UNPARAN args, userData )
-
-#define EXPAND_WCB(cbname) EXPAND_WCB_SUB_ ## cbname
-#endif
/*
* INVOKE_WCB() is used as:
*
* The callback is invoked as:
*
- * callback( arg_list );
+ * callback( arg_list, userData );
*
- * ...so the parentheses are REQUIRED in the {arg_list}.
+ * ...where userData is added to the arg_list, but the parentheses
+ * are REQUIRED in the {arg_list}.
*
* NOTE that it does a sanity-check and also sets the
* current window.
FGCB ## cbname ## UC func = (FGCB ## cbname ## UC)(FETCH_WCB( window, cbname )); \
FGCBUserData userData = FETCH_USER_DATA_WCB( window, cbname ); \
fgSetWindow( &window ); \
- func EXPAND_WCB( cbname )( arg_list, userData ); \
+ func EXPAND_WCB( cbname )(( arg_list, userData )); \
} \
} while( 0 )
#else
{ \
fgSetWindow( &window ); \
FGCBUserData userData = FETCH_USER_DATA_WCB( window, cbname ); \
- ((FGCB ## cbname ## UC)FETCH_WCB( window, cbname )) EXPAND_WCB( cbname )( arg_list, userData ); \
+ ((FGCB ## cbname ## UC)FETCH_WCB( window, cbname )) EXPAND_WCB( cbname )(( arg_list, userData )); \
} \
} while( 0 )
#endif