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John McCutchan080c33e2015-07-16 12:35:35 -07001// 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 McCutchanc27a98c2015-07-21 11:25:24 -07005#ifndef TONIC_FLOAT32_LIST_H_
6#define TONIC_FLOAT32_LIST_H_
John McCutchan080c33e2015-07-16 12:35:35 -07007
8#include "dart/runtime/include/dart_api.h"
9#include "tonic/dart_converter.h"
10
John McCutchandeace8f2015-07-21 08:01:40 -070011namespace tonic {
John McCutchan080c33e2015-07-16 12:35:35 -070012
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.
18class 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
35template <>
36struct DartConverter<Float32List> {
37 static Float32List FromArgumentsWithNullCheck(Dart_NativeArguments args,
38 int index,
39 Dart_Handle& exception);
40};
41
John McCutchandeace8f2015-07-21 08:01:40 -070042} // namespace tonic
John McCutchan080c33e2015-07-16 12:35:35 -070043
John McCutchanc27a98c2015-07-21 11:25:24 -070044#endif // TONIC_FLOAT32_LIST_H_