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ADD finishcallback, range and offset #67

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ADD finishcallback, range and offset #67

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16 changes: 11 additions & 5 deletions src/playdate/bindings/sound.nim
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,10 @@ import utils
type FilePlayerPtr = pointer
type AudioSamplePtr = pointer
type SamplePlayerPtr = pointer
type SoundSourcePtr = pointer

type PDSndCallbackProcRaw {.importc: "sndCallbackProc", header: "pd_api.h".} = proc(soundSource: SoundSourcePtr, userData: pointer): void {.cdecl.}


type PlaydateSoundFileplayer {.importc: "const struct playdate_sound_fileplayer",
header: "pd_api.h", bycopy.} = object
Expand Down Expand Up @@ -81,13 +85,15 @@ type PlaydateSoundSampleplayer {.importc: "const struct playdate_sound_samplepla
getRate {.importc: "getRate".}: proc (player: SamplePlayerPtr): cfloat {.cdecl, raises: [].}
# setOffset* {.importc: "setOffset".}: proc (player: SamplePlayerPtr; offset: cfloat) {.
# cdecl.}
# setPlayRange* {.importc: "setPlayRange".}: proc (player: ptr SamplePlayer;
# start: cint; `end`: cint) {.cdecl.}
# setFinishCallback* {.importc: "setFinishCallback".}: proc (
# player: ptr SamplePlayer; callback: SndCallbackProc) {.cdecl.}
setPlayRange* {.importc: "setPlayRange".}: proc (player: SamplePlayerPtr;
start: cint; `end`: cint) {.cdecl, raises: [].}
setFinishCallback* {.importc: "setFinishCallback".}: proc (
player: SamplePlayerPtr; callback: PDSndCallbackProcRaw, userData: pointer = nil) {.cdecl, raises: [].}
# setLoopCallback* {.importc: "setLoopCallback".}: proc (player: ptr SamplePlayer;
# callback: SndCallbackProc) {.cdecl.}
# getOffset* {.importc: "getOffset".}: proc (player: ptr SamplePlayer): cfloat {.cdecl.}
getOffset* {.importc: "getOffset".}: proc (player: SamplePlayerPtr): cfloat {.cdecl , raises: [].}
setOffset {.importc: "setOffset".}: proc (player: SamplePlayerPtr; offset: cfloat) {.
cdecl, raises: [].}
setPaused {.importc: "setPaused".}: proc (player: SamplePlayerPtr; flag: cint) {.
cdecl, raises: [].}
# type PlaydateSoundSampleplayer* = ptr PlaydateSoundSampleplayerRaw
Expand Down
43 changes: 43 additions & 0 deletions src/playdate/sound.nim
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
{.push raises: [].}

import std/importutils
import tables
import bindings/sound
import bindings/api
import system
Expand All @@ -16,9 +17,17 @@ type
resource: AudioSamplePtr
AudioSample* = ref AudioSampleObj

PDSoundCallbackFunction* = proc(userData: pointer) {.raises: [].}

var
## Finish callbacks for sound sources (FilePlayer, SamplePlayer)
soundCallbackMap: Table[SoundSourcePtr, PDSoundCallbackFunction] = initTable[SoundSourcePtr, PDSoundCallbackFunction]()


proc `=destroy`(this: var AudioSampleObj) =
privateAccess(PlaydateSound)
privateAccess(PlaydateSoundSample)
soundCallbackMap.del(this.resource)
playdate.sound.sample.freeSample(this.resource)

proc newAudioSample*(this: ptr PlaydateSound, bytes: int32): AudioSample =
Expand Down Expand Up @@ -178,6 +187,16 @@ proc setVolume*(this: SamplePlayer, left: float32, right: float32) =
privateAccess(PlaydateSoundSampleplayer)
playdate.sound.sampleplayer.setVolume(this.resource, left.cfloat, right.cfloat)

proc `offset=`*(this: SamplePlayer, offset: float32) =
privateAccess(PlaydateSound)
privateAccess(PlaydateSoundSampleplayer)
playdate.sound.sampleplayer.setOffset(this.resource, offset.cfloat)

proc offset*(this: SamplePlayer): float32 =
privateAccess(PlaydateSound)
privateAccess(PlaydateSoundSamplePlayer)
return playdate.sound.sampleplayer.getOffset(this.resource).float32

proc play*(this: SamplePlayer, repeat: int, rate: float32) =
privateAccess(PlaydateSound)
privateAccess(PlaydateSoundSampleplayer)
Expand Down Expand Up @@ -208,6 +227,30 @@ proc rate*(this: SamplePlayer): float32 =
privateAccess(PlaydateSoundSampleplayer)
return playdate.sound.sampleplayer.getRate(this.resource).float32

proc privateFinishCallback(soundSource: SoundSourcePtr, userData: pointer) {.cdecl, raises: [].} =
try:
soundCallbackMap[soundSource](userData)
except:
echo "No finish callback for sound source pointer " & repr(soundSource)

proc setFinishCallback*(this: SamplePlayer, callback: PDSoundCallbackFunction) =
privateAccess(PlaydateSound)
privateAccess(PlaydateSoundSampleplayer)
try:
if callback == nil:
soundCallbackMap.del(this.resource)
playdate.sound.sampleplayer.setFinishCallback(this.resource, nil, nil)
else:
soundCallbackMap[this.resource] = callback
playdate.sound.sampleplayer.setFinishCallback(this.resource, privateFinishCallback, nil)
except:
echo "Error setting finish callback"

proc setPlayRange*(this: SamplePlayer, start: int32, `end`: int32) =
privateAccess(PlaydateSound)
privateAccess(PlaydateSoundSampleplayer)
playdate.sound.sampleplayer.setPlayRange(this.resource, start.cint, `end`.cint)

# PlaydateSound
var headphoneChanged: proc(headphone: bool, microphone: bool) = nil

Expand Down