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/* $Id$ */
/** @file hal.h Hardware Abstraction Layer declarations */
#ifndef HAL_H
#define HAL_H
typedef struct {
const char *(*start)(const char * const *parm);
void (*stop)(void);
} HalCommonDriver;
typedef struct {
const char *(*start)(const char * const *parm);
void (*stop)(void);
void (*make_dirty)(int left, int top, int width, int height);
void (*main_loop)(void);
bool (*change_resolution)(int w, int h);
void (*toggle_fullscreen)(bool fullscreen);
} HalVideoDriver;
typedef struct {
const char *(*start)(const char * const *parm);
void (*stop)(void);
} HalSoundDriver;
typedef struct {
const char *(*start)(const char * const *parm);
void (*stop)(void);
void (*play_song)(const char *filename);
void (*stop_song)(void);
bool (*is_song_playing)(void);
void (*set_volume)(byte vol);
} HalMusicDriver;
extern HalMusicDriver *_music_driver;
extern HalSoundDriver *_sound_driver;
extern HalVideoDriver *_video_driver;
enum DriverType {
VIDEO_DRIVER = 0,
SOUND_DRIVER = 1,
MUSIC_DRIVER = 2,
};
#endif /* HAL_H */
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