// GetDimensions returns the dimensions in Width, Height, Depth, Error format
func (p *Pix) GetDimensions() (int32, int32, int32, error) {
p.lock.Lock()
defer p.lock.Unlock()
var w, h, d int32
cW := C.l_int32(w)
cH := C.l_int32(h)
cD := C.l_int32(d)
if !p.closed {
code := C.pixGetDimensions(p.cPix, &cW, &cH, &cD)
if code != 0 {
return 0, 0, 0, errors.New("could not get dimensions")
}
}
return int32(cW), int32(cH), int32(cD), nil
}
// WriteFile saves to disk the current pix in the given format
func (p *Pix) WriteFile(filename string, format ImageType) error {
cFilename := C.CString(filename)
defer C.free(unsafe.Pointer(cFilename))
cFormat := C.l_int32(format)
// create new PIX
code := C.pixWrite(cFilename, p.cPix, cFormat)
if code != 0 {
return errors.New("could not write PIX to given filename: " + filename + " (format: " + strconv.Itoa(int(format)) + ")")
}
return nil
}
// EncodedBytes will return a byte array holding the data from PIX in the given format
func (p *Pix) EncodedBytes(format ImageType) ([]byte, error) {
var memory []byte
memPtr := C.uglycast(unsafe.Pointer(&(memory)))
var i int64
sizePtr := C.size_t(i)
cFormat := C.l_int32(format)
code := C.pixWriteMem(&memPtr, &sizePtr, p.cPix, cFormat)
if code != 0 {
return nil, errors.New("Cannot write type to given memory. WriteMem returned: " + strconv.Itoa(int(code)))
}
data := C.GoBytes(unsafe.Pointer(memPtr), C.int(sizePtr))
C.free(unsafe.Pointer(memPtr))
return data, nil
}
