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Update matrix.go

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This commit is contained in:
Lukas Malkmus
2017-09-10 00:31:35 +02:00
committed by GitHub
parent e2bcdb7724
commit e26daa0d9f
1 changed files with 12 additions and 2 deletions
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14
matrix.go
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@@ -122,13 +122,23 @@ type RGBLedMatrix struct {
const MatrixEmulatorENV = "MATRIX_EMULATOR" const MatrixEmulatorENV = "MATRIX_EMULATOR"
// NewRGBLedMatrix returns a new matrix using the given size and config // NewRGBLedMatrix returns a new matrix using the given size and config
func NewRGBLedMatrix(config *HardwareConfig) (Matrix, error) { func NewRGBLedMatrix(config *HardwareConfig) (m Matrix, err error) {
defer func() {
if r := recover(); r != nil {
var ok bool
err, ok = r.(error)
if !ok {
err = fmt.Errorf("error creating matrix: %v", r)
}
}
}()
if isMatrixEmulator() { if isMatrixEmulator() {
return buildMatrixEmulator(config), nil return buildMatrixEmulator(config), nil
} }
w, h := config.geometry() w, h := config.geometry()
m := C.led_matrix_create_from_options(config.toC(), nil, nil) m = C.led_matrix_create_from_options(config.toC(), nil, nil)
b := C.led_matrix_create_offscreen_canvas(m) b := C.led_matrix_create_offscreen_canvas(m)
c := &RGBLedMatrix{ c := &RGBLedMatrix{
Config: config, Config: config,