OLD | NEW |
| (Empty) |
1 // Copyright (c) 2011 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 | |
5 #include "ppapi/shared_impl/ppb_audio_config_shared.h" | |
6 | |
7 namespace ppapi { | |
8 | |
9 PPB_AudioConfig_Shared::PPB_AudioConfig_Shared(PP_Instance instance) | |
10 : Resource(instance), | |
11 sample_rate_(PP_AUDIOSAMPLERATE_NONE), | |
12 sample_frame_count_(0) { | |
13 } | |
14 | |
15 PPB_AudioConfig_Shared::PPB_AudioConfig_Shared( | |
16 const HostResource& host_resource) | |
17 : Resource(host_resource), | |
18 sample_rate_(PP_AUDIOSAMPLERATE_NONE), | |
19 sample_frame_count_(0) { | |
20 } | |
21 | |
22 PPB_AudioConfig_Shared::~PPB_AudioConfig_Shared() { | |
23 } | |
24 | |
25 // static | |
26 PP_Resource PPB_AudioConfig_Shared::CreateAsImpl( | |
27 PP_Instance instance, | |
28 PP_AudioSampleRate sample_rate, | |
29 uint32_t sample_frame_count) { | |
30 scoped_refptr<PPB_AudioConfig_Shared> object( | |
31 new PPB_AudioConfig_Shared(instance)); | |
32 if (!object->Init(sample_rate, sample_frame_count)) | |
33 return 0; | |
34 return object->GetReference(); | |
35 } | |
36 | |
37 // static | |
38 PP_Resource PPB_AudioConfig_Shared::CreateAsProxy( | |
39 PP_Instance instance, | |
40 PP_AudioSampleRate sample_rate, | |
41 uint32_t sample_frame_count) { | |
42 scoped_refptr<PPB_AudioConfig_Shared> object(new PPB_AudioConfig_Shared( | |
43 HostResource::MakeInstanceOnly(instance))); | |
44 if (!object->Init(sample_rate, sample_frame_count)) | |
45 return 0; | |
46 return object->GetReference(); | |
47 } | |
48 | |
49 thunk::PPB_AudioConfig_API* PPB_AudioConfig_Shared::AsPPB_AudioConfig_API() { | |
50 return this; | |
51 } | |
52 | |
53 PP_AudioSampleRate PPB_AudioConfig_Shared::GetSampleRate() { | |
54 return sample_rate_; | |
55 } | |
56 | |
57 uint32_t PPB_AudioConfig_Shared::GetSampleFrameCount() { | |
58 return sample_frame_count_; | |
59 } | |
60 | |
61 bool PPB_AudioConfig_Shared::Init(PP_AudioSampleRate sample_rate, | |
62 uint32_t sample_frame_count) { | |
63 // TODO(brettw): Currently we don't actually check what the hardware | |
64 // supports, so just allow sample rates of the "guaranteed working" ones. | |
65 if (sample_rate != PP_AUDIOSAMPLERATE_44100 && | |
66 sample_rate != PP_AUDIOSAMPLERATE_48000) | |
67 return false; | |
68 | |
69 // TODO(brettw): Currently we don't actually query to get a value from the | |
70 // hardware, so just validate the range. | |
71 if (sample_frame_count > PP_AUDIOMAXSAMPLEFRAMECOUNT || | |
72 sample_frame_count < PP_AUDIOMINSAMPLEFRAMECOUNT) | |
73 return false; | |
74 | |
75 sample_rate_ = sample_rate; | |
76 sample_frame_count_ = sample_frame_count; | |
77 return true; | |
78 } | |
79 | |
80 } // namespace ppapi | |
OLD | NEW |