--- /dev/null
+/*
+ * fg_callback_macros.h
+ *
+ * The freeglut library callback macro file.
+ *
+ * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
+ * Written by Pawel W. Olszta, <olszta@sourceforge.net>
+ * Creation date: Thu Dec 2 1999
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef FREEGLUT_CALLBACK_MACROS_H
+#define FREEGLUT_CALLBACK_MACROS_H
+
+#ifndef FREEGLUT_INTERNAL_H
+#error "fg_internal.h needs to be included before this header"
+#endif
+
+#if 0 /* old. Remove once other testing is complete */
+/*
+ * 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__)
+#endif
+
+/*
+ * Compiler defines:
+ * FG_COMPILER_SUPPORTS_GCC_VA_ARGS_HACK: if the compiler supports GCC's varadic macro implementation (AKA, ##__VA_ARGS__)
+ * FG_COMPILER_SUPPORTS_VA_ARGS: if the compiler supports varadic macros
+ */
+
+#ifdef FG_COMPILER_SUPPORTS_GCC_VA_ARGS_HACK
+
+ /*
+ * 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.
+ *
+ * Modification of:
+ * http://stackoverflow.com/questions/5355241/generating-function-declaration-using-a-macro-iteration/5355946#5355946
+ *
+ * --------------
+ *
+ * GCC-specific design that doesn't require per-callback defines
+ *
+ * The naming is terrible... and it's very convuluted and complex, but
+ * should not require any modification unless additional arguments are to
+ * be supported.
+ *
+ * Supports callbacks up to 5 args (follow the pattern of PP_HAS_ARGS_IMPL2
+ * and PP_HAS_ARGS_SOURCE to add more)
+ *
+ * Edit with care.
+ */
+
+#define EXPAND_WCB_UNPARAN(...) __VA_ARGS__
+
+#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(args, userData) ( userData )
+#define EXPAND_WCB_ONE_OR_MORE(args, userData) ( EXPAND_WCB_UNPARAN args, userData )
+
+#define EXPAND_WCB_DISAMBIGUATE(has_args, args, userData) EXPAND_WCB_ ## has_args ( args, userData )
+
+#define EXPAND_WCB_UNWRAP_ARGS2(args, userData) EXPAND_WCB_DISAMBIGUATE( PP_HAS_ARGS args, args, userData )
+#define EXPAND_WCB_UNWRAP_ARGS(args) EXPAND_WCB_UNWRAP_ARGS2 args
+
+#define EXPAND_WCB(cbname) EXPAND_WCB_UNWRAP_ARGS
+
+#else
+
+/*
+ * EXPAND_WCB() is used as:
+ *
+ * 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>.
+ * Helper functions exist for zero to five parameters: EXPAND_WCB_ZERO,
+ * EXPAND_WCB_ONE, EXPAND_WCB_TWO, EXPAND_WCB_THREE< EXPAND_WCB_FOUR,
+ * and EXPAND_WCB_FIVE. Each handle the callback argument counts.
+ *
+ * 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) EXPAND_WCB_ONE args
+ */
+
+#define FG_COMPILER_SUPPORTS_VA_ARGS //XXX (should be compiler defined)
+#ifdef FG_COMPILER_SUPPORTS_VA_ARGS
+
+#define EXPAND_WCB_UNPARAN(...) __VA_ARGS__
+#define EXPAND_WCB_ONE_OR_MORE(args, userData) ( EXPAND_WCB_UNPARAN args, userData )
+
+#define EXPAND_WCB_ONE(args, userData) EXPAND_WCB_ONE_OR_MORE( args, userData )
+#define EXPAND_WCB_TWO(args, userData) EXPAND_WCB_ONE_OR_MORE( args, userData )
+#define EXPAND_WCB_THREE(args, userData) EXPAND_WCB_ONE_OR_MORE( args, userData )
+#define EXPAND_WCB_FOUR(args, userData) EXPAND_WCB_ONE_OR_MORE( args, userData )
+#define EXPAND_WCB_FIVE(args, userData) EXPAND_WCB_ONE_OR_MORE( args, userData )
+
+#else
+
+//TODO
+#error "Compiler does not support varadic argument macros"
+
+#endif
+
+#define EXPAND_WCB_ZERO(args, userData) ( userData )
+
+#define EXPAND_WCB(cbname) EXPAND_WCB_SUB_ ## cbname
+
+/*
+ * Freeglut callbacks type definitions macros
+ *
+ * Every time a callback is updated in fg_internal.h is updated, this needs updated
+ * if argument counts change, new callbacks are added, or callbacks are removed.
+ */
+
+#define EXPAND_WCB_SUB_Display(args) EXPAND_WCB_ZERO args
+#define EXPAND_WCB_SUB_Reshape(args) EXPAND_WCB_TWO args
+#define EXPAND_WCB_SUB_Position(args) EXPAND_WCB_TWO args
+#define EXPAND_WCB_SUB_Visibility(args) EXPAND_WCB_ONE args
+#define EXPAND_WCB_SUB_Keyboard(args) EXPAND_WCB_THREE args
+#define EXPAND_WCB_SUB_KeyboardUp(args) EXPAND_WCB_THREE args
+#define EXPAND_WCB_SUB_Special(args) EXPAND_WCB_THREE args
+#define EXPAND_WCB_SUB_SpecialUp(args) EXPAND_WCB_THREE args
+#define EXPAND_WCB_SUB_Mouse(args) EXPAND_WCB_FOUR args
+#define EXPAND_WCB_SUB_MouseWheel(args) EXPAND_WCB_FOUR args
+#define EXPAND_WCB_SUB_Motion(args) EXPAND_WCB_TWO args
+#define EXPAND_WCB_SUB_Passive(args) EXPAND_WCB_TWO args
+#define EXPAND_WCB_SUB_Entry(args) EXPAND_WCB_ONE args
+#define EXPAND_WCB_SUB_WindowStatus(args) EXPAND_WCB_ONE args
+#define EXPAND_WCB_SUB_Joystick(args) EXPAND_WCB_FOUR args
+#define EXPAND_WCB_SUB_OverlayDisplay(args) EXPAND_WCB_ZERO args
+#define EXPAND_WCB_SUB_SpaceMotion(args) EXPAND_WCB_THREE args
+#define EXPAND_WCB_SUB_SpaceRotation(args) EXPAND_WCB_THREE args
+#define EXPAND_WCB_SUB_SpaceButton(args) EXPAND_WCB_TWO args
+#define EXPAND_WCB_SUB_Dials(args) EXPAND_WCB_TWO args
+#define EXPAND_WCB_SUB_ButtonBox(args) EXPAND_WCB_TWO args
+#define EXPAND_WCB_SUB_TabletMotion(args) EXPAND_WCB_TWO args
+#define EXPAND_WCB_SUB_TabletButton(args) EXPAND_WCB_FOUR args
+#define EXPAND_WCB_SUB_Destroy(args) EXPAND_WCB_ZERO args
+#define EXPAND_WCB_SUB_MultiEntry(args) EXPAND_WCB_TWO args
+#define EXPAND_WCB_SUB_MultiButton(args) EXPAND_WCB_FIVE args
+#define EXPAND_WCB_SUB_MultiMotion(args) EXPAND_WCB_THREE args
+#define EXPAND_WCB_SUB_MultiPassive(args) EXPAND_WCB_THREE args
+#define EXPAND_WCB_SUB_InitContext(args) EXPAND_WCB_ZERO args
+#define EXPAND_WCB_SUB_AppStatus(args) EXPAND_WCB_ONE args
+
+#endif
+
+#endif /* FREEGLUT_CALLBACK_MACROS_H */
+
+/*** END OF FILE ***/
#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 ); \
#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 FG_COMPILER_SUPPORTS_VA_ARGS
-#ifdef FG_COMPILER_SUPPORTS_VA_ARGS
-#define EXPAND_WCB_UNPARAN(...) __VA_ARGS__
-#else
-#error "Compiler does not support varadic argument macros"
-#endif
-
-#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:
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
projects / freeglut / commitdiff