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fix purego version of DetachAudioStreamProcessor and DetachAudioMixedProcessor #475

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merged 1 commit into from
Dec 17, 2024
Merged

fix purego version of DetachAudioStreamProcessor and DetachAudioMixedProcessor #475

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22 changes: 14 additions & 8 deletions raylib/raylib_purego.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ import (
"image"
"image/color"
"os"
"reflect"
"unsafe"

"github.com/ebitengine/purego"
Expand All @@ -17,6 +18,10 @@ import (
var (
// raylibDll is the pointer to the shared library
raylibDll uintptr

// audioCallbacks is needed to have a reference between Go functions (keys) created by the user
// and C function pointers (values) created by purego.NewCallback
audioCallbacks map[uintptr]uintptr
)

var initWindow func(width int32, height int32, title string)
Expand Down Expand Up @@ -532,6 +537,7 @@ var detachAudioMixedProcessor func(processor uintptr)

func init() {
raylibDll = loadLibrary()
audioCallbacks = make(map[uintptr]uintptr)

initRlglPurego()

Expand Down Expand Up @@ -3894,15 +3900,15 @@ func AttachAudioStreamProcessor(stream AudioStream, processor AudioCallback) {
processor(unsafe.Slice((*float32)(bufferData), frames), int(frames))
return 0
})
ptr := uintptr(reflect.ValueOf(processor).UnsafePointer())
audioCallbacks[ptr] = fn
attachAudioStreamProcessor(uintptr(unsafe.Pointer(&stream)), fn)
}

// DetachAudioStreamProcessor - Detach audio stream processor from stream
func DetachAudioStreamProcessor(stream AudioStream, processor AudioCallback) {
fn := purego.NewCallback(func(bufferData unsafe.Pointer, frames int32) uintptr {
processor(unsafe.Slice((*float32)(bufferData), frames), int(frames))
return 0
})
ptr := uintptr(reflect.ValueOf(processor).UnsafePointer())
fn := audioCallbacks[ptr]
detachAudioStreamProcessor(uintptr(unsafe.Pointer(&stream)), fn)
}

Expand All @@ -3912,15 +3918,15 @@ func AttachAudioMixedProcessor(processor AudioCallback) {
processor(unsafe.Slice((*float32)(bufferData), frames), int(frames))
return 0
})
ptr := uintptr(reflect.ValueOf(processor).UnsafePointer())
audioCallbacks[ptr] = fn
attachAudioMixedProcessor(fn)
}

// DetachAudioMixedProcessor - Detach audio stream processor from the entire audio pipeline
func DetachAudioMixedProcessor(processor AudioCallback) {
fn := purego.NewCallback(func(bufferData unsafe.Pointer, frames int32) uintptr {
processor(unsafe.Slice((*float32)(bufferData), frames), int(frames))
return 0
})
ptr := uintptr(reflect.ValueOf(processor).UnsafePointer())
fn := audioCallbacks[ptr]
detachAudioMixedProcessor(fn)
}

Expand Down
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