1 /* $Id$ */

     2 

     3 /** @file hal.h Hardware Abstraction Layer declarations */

     4 

     5 #ifndef HAL_H

     6 #define HAL_H

     7 

     8 struct HalCommonDriver {

     9 	const char *(*start)(const char * const *parm);

    10 	void (*stop)();

    11 };

    12 

    13 struct HalVideoDriver {

    14 	const char *(*start)(const char * const *parm);

    15 	void (*stop)();

    16 	void (*make_dirty)(int left, int top, int width, int height);

    17 	void (*main_loop)();

    18 	bool (*change_resolution)(int w, int h);

    19 	void (*toggle_fullscreen)(bool fullscreen);

    20 };

    21 

    22 struct HalSoundDriver {

    23 	const char *(*start)(const char * const *parm);

    24 	void (*stop)();

    25 };

    26 

    27 struct HalMusicDriver {

    28 	const char *(*start)(const char * const *parm);

    29 	void (*stop)();

    30 

    31 	void (*play_song)(const char *filename);

    32 	void (*stop_song)();

    33 	bool (*is_song_playing)();

    34 	void (*set_volume)(byte vol);

    35 };

    36 

    37 extern HalMusicDriver *_music_driver;

    38 extern HalSoundDriver *_sound_driver;

    39 extern HalVideoDriver *_video_driver;

    40 

    41 enum DriverType {

    42 	VIDEO_DRIVER = 0,

    43 	SOUND_DRIVER = 1,

    44 	MUSIC_DRIVER = 2,

    45 };

    46 

    47 #endif /* HAL_H */