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audio: Bug fix: a buffer size passed to OpenAL must be a multiple of 4 (#187)

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This commit is contained in:
Hajime Hoshi 2016-03-16 02:57:54 +09:00
parent 8f15978c83
commit 3bf9334a80
1 changed files with 9 additions and 8 deletions
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17
exp/audio/audio.go
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@ -51,15 +51,15 @@ func (s *mixedPlayersStream) Read(b []byte) (int, error) {
return 0, nil
}
l := len(b) / 4 * 4
if len(s.context.players) == 0 {
l := min(len(b), x-s.writtenBytes)
l &= ^3
copy(b, make([]byte, l))
s.writtenBytes += l
return l, nil
}
closed := []*Player{}
ll := l
l := len(b)
for p := range s.context.players {
_, err := p.readToBuffer(l)
if err == io.EOF {
@ -67,13 +67,14 @@ func (s *mixedPlayersStream) Read(b []byte) (int, error) {
} else if err != nil {
return 0, err
}
ll = min(p.bufferLength()/4*4, ll)
l = min(p.bufferLength()/4*4, l)
}
l &= ^3
b16s := [][]int16{}
for p := range s.context.players {
b16s = append(b16s, p.bufferToInt16(ll))
b16s = append(b16s, p.bufferToInt16(l))
}
for i := 0; i < ll/2; i++ {
for i := 0; i < l/2; i++ {
x := 0
for _, b16 := range b16s {
x += int(b16[i])
@ -88,13 +89,13 @@ func (s *mixedPlayersStream) Read(b []byte) (int, error) {
b[2*i+1] = byte(x >> 8)
}
for p := range s.context.players {
p.proceed(ll)
p.proceed(l)
}
for _, p := range closed {
delete(s.context.players, p)
}
s.writtenBytes += ll
return ll, nil
s.writtenBytes += l
return l, nil
}
// TODO: Enable to specify the format like Mono8?