| // Copyright 2017 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "cobalt/dom/buffer_source.h" |
| |
| #include "base/logging.h" |
| |
| namespace cobalt { |
| namespace dom { |
| |
| void GetBufferAndSize(const BufferSource& buffer_source, const uint8** buffer, |
| int* buffer_size) { |
| DCHECK(buffer); |
| DCHECK(buffer_size); |
| |
| if (buffer_source.IsType<script::Handle<script::ArrayBufferView> >()) { |
| script::Handle<script::ArrayBufferView> array_buffer_view = |
| buffer_source.AsType<script::Handle<script::ArrayBufferView> >(); |
| *buffer = static_cast<const uint8*>(array_buffer_view->RawData()); |
| DCHECK_LT(array_buffer_view->ByteLength(), |
| static_cast<const size_t>(INT_MAX)); |
| *buffer_size = static_cast<int>(array_buffer_view->ByteLength()); |
| } else if (buffer_source.IsType<script::Handle<script::ArrayBuffer> >()) { |
| script::Handle<script::ArrayBuffer> array_buffer = |
| buffer_source.AsType<script::Handle<script::ArrayBuffer> >(); |
| *buffer = static_cast<const uint8*>(array_buffer->Data()); |
| DCHECK_LT(array_buffer->ByteLength(), static_cast<const size_t>(INT_MAX)); |
| *buffer_size = static_cast<int>(array_buffer->ByteLength()); |
| } else { |
| NOTREACHED(); |
| *buffer = NULL; |
| *buffer_size = 0; |
| } |
| } |
| |
| } // namespace dom |
| } // namespace cobalt |