/*
* Read in the data for a structured clone version 1 ArrayBuffer, performing
* endianness-conversion while reading.
*/
bool
JSStructuredCloneReader::readV1ArrayBuffer(uint32_t arrayType, uint32_t nelems, Value *vp)
{
JS_ASSERT(arrayType <= TypedArray::TYPE_UINT8_CLAMPED);
uint32_t nbytes = nelems * bytesPerTypedArrayElement(arrayType);
JSObject *obj = ArrayBufferObject::create(context(), nbytes);
if (!obj)
return false;
vp->setObject(*obj);
ArrayBufferObject &buffer = obj->asArrayBuffer();
JS_ASSERT(buffer.byteLength() == nbytes);
switch (arrayType) {
case TypedArray::TYPE_INT8:
case TypedArray::TYPE_UINT8:
case TypedArray::TYPE_UINT8_CLAMPED:
return in.readArray((uint8_t*) buffer.dataPointer(), nelems);
case TypedArray::TYPE_INT16:
case TypedArray::TYPE_UINT16:
return in.readArray((uint16_t*) buffer.dataPointer(), nelems);
case TypedArray::TYPE_INT32:
case TypedArray::TYPE_UINT32:
case TypedArray::TYPE_FLOAT32:
return in.readArray((uint32_t*) buffer.dataPointer(), nelems);
case TypedArray::TYPE_FLOAT64:
return in.readArray((uint64_t*) buffer.dataPointer(), nelems);
default:
JS_NOT_REACHED("unknown TypedArray type");
return false;
}
}
bool
JSStructuredCloneReader::readArrayBuffer(uint32_t nbytes, Value *vp)
{
JSObject *obj = ArrayBufferObject::create(context(), nbytes);
if (!obj)
return false;
vp->setObject(*obj);
ArrayBufferObject &buffer = obj->asArrayBuffer();
JS_ASSERT(buffer.byteLength() == nbytes);
return in.readArray(buffer.dataPointer(), nbytes);
}
