func CreateTransform(src_prof *Profile, src_type CMSType, dst_prof *Profile, dst_type CMSType) *Transform {
transform := C.cmsCreateTransform(
src_prof.prof, C.cmsUInt32Number(src_type),
dst_prof.prof, C.cmsUInt32Number(dst_type),
C.INTENT_PERCEPTUAL, 0)
return &Transform{trans: transform}
}
func (trans *Transform) DoTransform(inputBuffer []uint8, outputBuffer []uint8, length int) error {
inputLen := len(inputBuffer)
outputLen := len(outputBuffer)
if inputLen < length {
return fmt.Errorf("DoTransform: inputLen(%d) < length(%d)", inputLen, length)
}
if outputLen < length {
return fmt.Errorf("DoTransform: outputLen(%d) < length(%d)", outputLen, length)
}
inputPtr := unsafe.Pointer(&inputBuffer[0])
outputPtr := unsafe.Pointer(&outputBuffer[0])
length /= 4 // XXX?
C.cmsDoTransform(trans.trans, inputPtr, outputPtr, C.cmsUInt32Number(length))
return nil
}
func OpenProfileFromMem(profdata []byte) *Profile {
data := unsafe.Pointer(&profdata[0])
dataLen := C.cmsUInt32Number(len(profdata))
return &Profile{prof: C.cmsOpenProfileFromMem(data, dataLen)}
}