John McCutchan | 080c33e | 2015-07-16 12:35:35 -0700 | [diff] [blame] | 1 | // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
John McCutchan | c27a98c | 2015-07-21 11:25:24 -0700 | [diff] [blame] | 5 | #ifndef TONIC_FLOAT32_LIST_H_ |
| 6 | #define TONIC_FLOAT32_LIST_H_ |
John McCutchan | 080c33e | 2015-07-16 12:35:35 -0700 | [diff] [blame] | 7 | |
| 8 | #include "dart/runtime/include/dart_api.h" |
| 9 | #include "tonic/dart_converter.h" |
| 10 | |
John McCutchan | deace8f | 2015-07-21 08:01:40 -0700 | [diff] [blame] | 11 | namespace tonic { |
John McCutchan | 080c33e | 2015-07-16 12:35:35 -0700 | [diff] [blame] | 12 | |
| 13 | // A simple wrapper around a Dart Float32List. It uses Dart_TypedDataAcquireData |
| 14 | // to obtain a raw pointer to the data, which is released when this object is |
| 15 | // destroyed. |
| 16 | // |
| 17 | // This is designed to be used with DartConverter only. |
| 18 | class Float32List { |
| 19 | public: |
| 20 | explicit Float32List(Dart_Handle list); |
| 21 | Float32List(Float32List&& other); |
| 22 | ~Float32List(); |
| 23 | |
| 24 | const float* data() const { return data_; } |
| 25 | intptr_t num_elements() const { return num_elements_; } |
| 26 | |
| 27 | private: |
| 28 | float* data_; |
| 29 | intptr_t num_elements_; |
| 30 | Dart_Handle dart_handle_; |
| 31 | |
| 32 | Float32List(const Float32List& other) = delete; |
| 33 | }; |
| 34 | |
| 35 | template <> |
| 36 | struct DartConverter<Float32List> { |
| 37 | static Float32List FromArgumentsWithNullCheck(Dart_NativeArguments args, |
| 38 | int index, |
| 39 | Dart_Handle& exception); |
| 40 | }; |
| 41 | |
John McCutchan | deace8f | 2015-07-21 08:01:40 -0700 | [diff] [blame] | 42 | } // namespace tonic |
John McCutchan | 080c33e | 2015-07-16 12:35:35 -0700 | [diff] [blame] | 43 | |
John McCutchan | c27a98c | 2015-07-21 11:25:24 -0700 | [diff] [blame] | 44 | #endif // TONIC_FLOAT32_LIST_H_ |