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audio: Don't check errors until making current context is done (#204)

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This commit is contained in:
Hajime Hoshi 2016-04-10 01:11:42 +09:00
parent 509aa22bae
commit 702884acf5
1 changed files with 9 additions and 4 deletions
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13
exp/audio/internal/driver/driver_openal.go
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@ -57,14 +57,19 @@ func alFormat(channelNum, bytesPerSample int) openal.Format {
func NewPlayer(src io.Reader, sampleRate, channelNum, bytesPerSample int) (*Player, error) {
d := openal.OpenDevice("")
if err := openal.Err(); err != nil {
return nil, fmt.Errorf("driver: OpenDevice: %v", err)
if d == nil {
return nil, fmt.Errorf("driver: OpenDevice must not return nil")
}
c := d.CreateContext()
if err := openal.Err(); err != nil {
return nil, fmt.Errorf("driver: CreateContext: %v", err)
if c == nil {
return nil, fmt.Errorf("driver: CreateContext must not return nil")
}
// Don't check openal.Err until making the current context is done.
// Linux might fail this check even though it succeeds (#204).
c.Activate()
if err := openal.Err(); err != nil {
return nil, fmt.Errorf("driver: Activate: %v", err)
}
s := openal.NewSource()
if err := openal.Err(); err != nil {
return nil, fmt.Errorf("driver: NewSource: %v", err)