diff options
Diffstat (limited to 'engines/sci/sfx/sfx_pcm.h')
| -rw-r--r-- | engines/sci/sfx/sfx_pcm.h | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/engines/sci/sfx/sfx_pcm.h b/engines/sci/sfx/sfx_pcm.h index ca4d281926..6a588ba387 100644 --- a/engines/sci/sfx/sfx_pcm.h +++ b/engines/sci/sfx/sfx_pcm.h @@ -50,53 +50,6 @@ struct sfx_pcm_config_t { unsigned int format; /* Sample format (SFX_PCM_FORMAT_*) */ }; -#define PCM_FEED_TIMESTAMP 0 /* New timestamp available */ -#define PCM_FEED_IDLE 1 /* No sound ATM, but new timestamp may be available later */ -#define PCM_FEED_EMPTY 2 /* Feed is finished, can be destroyed */ - -struct sfx_pcm_feed_t { - /* PCM feeds are sources of input for the PCM mixer. Their member functions - ** are invoked as callbacks on demand, to provide the mixer with input it - ** (in turn) passes on to PCM output devices. - ** PCM feeds must explicitly register themselves with the mixer in order - ** to be considered. - */ - - int (*poll)(sfx_pcm_feed_t *self, byte *dest, int size); - /* Asks the PCM feed to write out the next stuff it would like to have written - ** Parameters: (sfx_pcm_feed_t *) self: Self reference - ** (byte *) dest: The destination buffer to write to - ** (int) size: The maximum number of _frames_ (not neccessarily bytes) - ** to write - ** Returns : (int) The number of frames written - ** If the number of frames written is smaller than 'size', the PCM feed will - ** be queried for a new timestamp afterwards, or destroyed if no new timestamp - ** is available. - */ - - void (*destroy)(sfx_pcm_feed_t *self); - /* Asks the PCM feed to free all resources it occupies - ** Parameters: (sfx_pcm_feed_t *) self: Self reference - ** free(self) should be part of this function, if applicable. - */ - - int (*get_timestamp)(sfx_pcm_feed_t *self, Audio::Timestamp ×tamp); - /* Determines the timestamp of the next frame-to-read - ** Returns : (Timestamp &) timestamp: The timestamp of the next frame - ** (int) PCM_FEED_* - ** This function is OPTIONAL and may be NULL - */ - - void *internal; /* The private bits of a PCM feed. */ - - sfx_pcm_config_t conf; /* The channel's setup */ - - const char *debug_name; /* The channel name, for debugging */ - int debug_nr; /* A channel number relative to the channel name, for debugging - ** (print in hex) */ - int frame_size; /* Frame size, computed by the mixer for the feed */ - -}; int sfx_pcm_available(); /* Determines whether a PCM device is available and has been initialised |