-! (c)2009 Joe Groff bsd license
-USING: accessors alien audio classes.struct fry calendar alarms
-combinators combinators.short-circuit destructors generalizations
-kernel literals locals math openal sequences specialized-arrays strings ;
+! Copyright (C) 2009 Joe Groff.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors alien alien.data audio calendar
+combinators combinators.short-circuit destructors kernel
+literals math openal sequences sequences.generalizations
+specialized-arrays timers ;
QUALIFIED-WITH: alien.c-types c
SPECIALIZED-ARRAYS: c:float c:uchar c:uint ;
IN: audio.engine
{ distance float initial: 1.0 }
{ rolloff float initial: 1.0 } ;
-TUPLE: audio-orientation
+TUPLE: audio-orientation-state
{ forward initial: { 0.0 0.0 -1.0 } }
{ up initial: { 0.0 1.0 0.0 } } ;
-C: <audio-orientation> audio-orientation
+C: <audio-orientation-state> audio-orientation-state
: orientation>float-array ( orientation -- float-array )
[ forward>> first3 ]
{ position initial: { 0.0 0.0 0.0 } }
{ gain float initial: 1.0 }
{ velocity initial: { 0.0 0.0 0.0 } }
- { orientation initial: T{ audio-orientation } } ;
+ { orientation initial: T{ audio-orientation-state } } ;
GENERIC: audio-position ( source/listener -- position )
GENERIC: audio-gain ( source/listener -- gain )
M: object audio-relative? drop f ; inline
M: object audio-distance drop 1.0 ; inline
M: object audio-rolloff drop 1.0 ; inline
-M: object audio-orientation drop T{ audio-orientation } ; inline
+M: object audio-orientation drop T{ audio-orientation-state } ; inline
M: audio-source audio-position position>> ; inline
M: audio-source audio-gain gain>> ; inline
M: audio-source audio-velocity velocity>> ; inline
M: audio-source audio-relative? relative?>> ; inline
+M: audio-source audio-distance distance>> ; inline
+M: audio-source audio-rolloff rolloff>> ; inline
M: audio-listener audio-position position>> ; inline
M: audio-listener audio-gain gain>> ; inline
M: audio-listener audio-velocity velocity>> ; inline
M: audio-listener audio-orientation orientation>> ; inline
-GENERIC# generate-audio 1 ( generator buffer-size -- c-ptr )
+GENERIC: generate-audio ( generator -- c-ptr size )
GENERIC: generator-audio-format ( generator -- channels sample-bits sample-rate )
TUPLE: audio-engine < disposable
listener
{ next-source integer }
clips
- update-alarm ;
+ update-timer ;
TUPLE: audio-clip < disposable
{ audio-engine audio-engine }
TUPLE: streaming-audio-clip < audio-clip
generator
- { buffer-size integer }
{ channels integer }
{ sample-bits integer }
{ sample-rate integer }
- { al-buffers uint-array } ;
+ { al-buffers uint-array }
+ { done? boolean } ;
ERROR: audio-device-not-found device-name ;
ERROR: audio-context-not-available device-name ;
al-context>> alcMakeContextCurrent drop ; inline
: allocate-sources ( audio-engine -- sources )
- voice-count>> dup (uint-array) [ alGenSources ] keep ; inline
+ voice-count>> dup c:uint (c-array) [ alGenSources ] keep ; inline
:: flush-source ( al-source -- )
al-source alSourceStop
- 0 c:<uint> :> dummy-buffer
+ 0 c:uint <ref> :> dummy-buffer
al-source AL_BUFFERS_PROCESSED get-source-param [
al-source 1 dummy-buffer alSourceUnqueueBuffers
] times
al-source ;
:: queue-clip-buffer ( audio-clip al-buffer -- )
- audio-clip al-source>> :> al-source
- audio-clip generator>> :> generator
- audio-clip buffer-size>> :> buffer-size
- generator buffer-size generate-audio :> data
-
- al-buffer audio-clip openal-format data buffer-size audio-clip sample-rate>> alBufferData
- al-source 1 al-buffer c:<uint> alSourceQueueBuffers ;
+ audio-clip done?>> [
+ audio-clip al-source>> :> al-source
+ audio-clip generator>> :> generator
+ generator generate-audio :> ( data size )
+
+ size { [ not ] [ zero? ] } 1|| [
+ audio-clip t >>done? drop
+ ] [
+ al-buffer audio-clip openal-format data size audio-clip sample-rate>> alBufferData
+ al-source 1 al-buffer c:uint <ref> alSourceQueueBuffers
+ ] if
+ ] unless ;
: update-listener ( audio-engine -- )
listener>> {
M:: streaming-audio-clip (update-audio-clip) ( audio-clip -- )
audio-clip al-source>> :> al-source
- 0 c:<uint> :> buffer
+ 0 c:uint <ref> :> buffer
al-source AL_BUFFERS_PROCESSED get-source-param [
al-source 1 buffer alSourceUnqueueBuffers
- audio-clip buffer c:*uint queue-clip-buffer
+ audio-clip buffer c:uint deref queue-clip-buffer
] times ;
: update-audio-clip ( audio-clip -- )
[ update-source ] [
- dup al-source>> AL_SOURCE_STATE get-source-param AL_STOPPED =
+ dup al-source>> AL_SOURCE_STATE get-source-param AL_STOPPED =
[ dispose ] [ (update-audio-clip) ] if
] bi ;
: start-audio ( audio-engine -- )
dup start-audio*
- dup '[ _ update-audio ] 20 milliseconds every >>update-alarm
+ dup '[ _ update-audio ] 20 milliseconds every >>update-timer
drop ;
: stop-audio ( audio-engine -- )
dup al-sources>> [
{
[ make-engine-current ]
- [ update-alarm>> [ cancel-alarm ] when* ]
+ [ update-timer>> [ stop-timer ] when* ]
[ clips>> clone [ dispose ] each ]
[ al-sources>> free-sources ]
[
f >>al-sources
f >>clips
- f >>update-alarm
+ f >>update-timer
drop
]
[ al-context>> alcSuspendContext ]
[ [ alcCloseDevice* ] when* f ] change-al-device
drop ;
-:: <static-audio-clip> ( audio-engine audio source loop? -- audio-clip/f )
+:: <static-audio-clip> ( audio-engine source audio loop? -- audio-clip/f )
audio-engine get-available-source :> al-source
al-source [
- 1 0 c:<uint> [ alGenBuffers ] keep c:*uint :> al-buffer
+ 1 0 c:uint <ref> [ alGenBuffers ] keep c:uint deref :> al-buffer
al-buffer audio { [ openal-format ] [ data>> ] [ size>> ] [ sample-rate>> ] } cleave
alBufferData
clip
] [ f ] if ;
-:: <streaming-audio-clip> ( audio-engine source generator buffer-size buffer-count -- audio-clip/f )
+:: <streaming-audio-clip> ( audio-engine source generator buffer-count -- audio-clip/f )
audio-engine get-available-source :> al-source
al-source [
- buffer-count dup (uint-array) [ alGenBuffers ] keep :> al-buffers
+ buffer-count dup c:uint (c-array) [ alGenBuffers ] keep :> al-buffers
generator generator-audio-format :> ( channels sample-bits sample-rate )
- audio-clip new-disposable
+ streaming-audio-clip new-disposable
audio-engine >>audio-engine
source >>source
al-source >>al-source
generator >>generator
- buffer-size >>buffer-size
channels >>channels
sample-bits >>sample-bits
sample-rate >>sample-rate
al-buffers [ clip swap queue-clip-buffer ] each
clip audio-engine clips>> push
clip
- ] [ f ] if ;
+ ] [ generator dispose f ] if ;
M: audio-clip dispose*
[ dup audio-engine>> clips>> remove! drop ]
M: static-audio-clip dispose*
[ call-next-method ]
- [ [ 1 ] dip al-buffer>> c:<uint> alDeleteBuffers ] bi ;
+ [ [ 1 ] dip al-buffer>> c:uint <ref> alDeleteBuffers ] bi ;
M: streaming-audio-clip dispose*
[ call-next-method ]
- [ al-buffers>> [ length ] keep alDeleteBuffers ] bi ;
+ [ generator>> dispose ]
+ [ al-buffers>> [ length ] keep alDeleteBuffers ] tri ;
: play-clip ( audio-clip -- )
[ update-source ]
: play-static-audio-clip ( audio-engine source audio loop? -- audio-clip/f )
<static-audio-clip> dup [ play-clip ] when* ;
-: play-streaming-audio-clip ( audio-engine source generator buffer-size buffer-count -- audio-clip/f )
+: play-streaming-audio-clip ( audio-engine source generator buffer-count -- audio-clip/f )
<streaming-audio-clip> dup [ play-clip ] when* ;
: pause-clip ( audio-clip -- )
al-source>> alSourcePause ;
-: pause-clips ( audio-clip -- )
+: pause-clips ( audio-clips -- )
clip-al-sources alSourcePausev ;
: stop-clip ( audio-clip -- )
dispose ;
-: stop-clips ( audio-clip -- )
+: stop-clips ( audio-clips -- )
[ clip-al-sources alSourceStopv ]
[ [ dispose ] each ] bi ;
[ update-listener ]
[ clips>> clone [ update-audio-clip ] each ]
} cleave ;
-