[sdl_omap.git] / src / video / SDL_cursor_c.h

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

/* Useful variables and functions from SDL_cursor.c */
#include "SDL_mouse.h"

extern int  SDL_CursorInit(Uint32 flags);
extern void SDL_CursorPaletteChanged(void);
extern void SDL_DrawCursor(SDL_Surface *screen);
extern void SDL_DrawCursorNoLock(SDL_Surface *screen);
extern void SDL_EraseCursor(SDL_Surface *screen);
extern void SDL_EraseCursorNoLock(SDL_Surface *screen);
extern void SDL_UpdateCursor(SDL_Surface *screen);
extern void SDL_ResetCursor(void);
extern void SDL_MoveCursor(int x, int y);
extern void SDL_CursorQuit(void);

#define INLINE_MOUSELOCK
#ifdef INLINE_MOUSELOCK
/* Inline (macro) versions of the mouse lock functions */
#include "SDL_mutex.h"

extern SDL_mutex *SDL_cursorlock;

#define SDL_LockCursor()						\
	do {								\
		if ( SDL_cursorlock ) {					\
			SDL_mutexP(SDL_cursorlock);			\
		}							\
	} while ( 0 )
#define SDL_UnlockCursor()						\
	do {								\
		if ( SDL_cursorlock ) {					\
			SDL_mutexV(SDL_cursorlock);			\
		}							\
	} while ( 0 )
#else
extern void SDL_LockCursor(void);
extern void SDL_UnlockCursor(void);
#endif /* INLINE_MOUSELOCK */

/* Only for low-level mouse cursor drawing */
extern SDL_Cursor *SDL_cursor;
extern void SDL_MouseRect(SDL_Rect *area);

/* State definitions for the SDL cursor */
#define CURSOR_VISIBLE	0x01
#define CURSOR_USINGSW	0x10
#define SHOULD_DRAWCURSOR(X) 						\
			(((X)&(CURSOR_VISIBLE|CURSOR_USINGSW)) ==  	\
					(CURSOR_VISIBLE|CURSOR_USINGSW))

extern volatile int SDL_cursorstate;
Commit	Line	Data
e14743d1	1	/*
	2	SDL - Simple DirectMedia Layer
	3	Copyright (C) 1997-2009 Sam Lantinga
	4
	5	This library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	This library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with this library; if not, write to the Free Software
	17	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18
	19	Sam Lantinga
	20	slouken@libsdl.org
	21	*/
	22	#include "SDL_config.h"
	23
	24	/* Useful variables and functions from SDL_cursor.c */
	25	#include "SDL_mouse.h"
	26
	27	extern int SDL_CursorInit(Uint32 flags);
	28	extern void SDL_CursorPaletteChanged(void);
	29	extern void SDL_DrawCursor(SDL_Surface *screen);
	30	extern void SDL_DrawCursorNoLock(SDL_Surface *screen);
	31	extern void SDL_EraseCursor(SDL_Surface *screen);
	32	extern void SDL_EraseCursorNoLock(SDL_Surface *screen);
	33	extern void SDL_UpdateCursor(SDL_Surface *screen);
	34	extern void SDL_ResetCursor(void);
	35	extern void SDL_MoveCursor(int x, int y);
	36	extern void SDL_CursorQuit(void);
	37
	38	#define INLINE_MOUSELOCK
	39	#ifdef INLINE_MOUSELOCK
	40	/* Inline (macro) versions of the mouse lock functions */
	41	#include "SDL_mutex.h"
	42
	43	extern SDL_mutex *SDL_cursorlock;
	44
	45	#define SDL_LockCursor() \
	46	do { \
	47	if ( SDL_cursorlock ) { \
	48	SDL_mutexP(SDL_cursorlock); \
	49	} \
	50	} while ( 0 )
	51	#define SDL_UnlockCursor() \
	52	do { \
	53	if ( SDL_cursorlock ) { \
	54	SDL_mutexV(SDL_cursorlock); \
	55	} \
	56	} while ( 0 )
	57	#else
	58	extern void SDL_LockCursor(void);
	59	extern void SDL_UnlockCursor(void);
	60	#endif /* INLINE_MOUSELOCK */
	61
	62	/* Only for low-level mouse cursor drawing */
	63	extern SDL_Cursor *SDL_cursor;
	64	extern void SDL_MouseRect(SDL_Rect *area);
65
66	/* State definitions for the SDL cursor */
67	#define CURSOR_VISIBLE 0x01
68	#define CURSOR_USINGSW 0x10
69	#define SHOULD_DRAWCURSOR(X) \
70	(((X)&(CURSOR_VISIBLE\|CURSOR_USINGSW)) == \
71	(CURSOR_VISIBLE\|CURSOR_USINGSW))
72
73	extern volatile int SDL_cursorstate;