ppapi/thunk/ppb_audio_config_thunk.cc

   1 // Copyright (c) 2012 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 #include "ppapi/thunk/thunk.h"
   7 #include "ppapi/thunk/enter.h"
   8 #include "ppapi/thunk/ppb_audio_config_api.h"
   9 #include "ppapi/thunk/resource_creation_api.h"
  10
  11 namespace ppapi {
  12 namespace thunk {
  13
  14 namespace {
  15
  16 PP_Resource CreateStereo16bit(PP_Instance instance,
  17                               PP_AudioSampleRate sample_rate,
  18                               uint32_t sample_frame_count) {
  19   EnterResourceCreation enter(instance);
  20   if (enter.failed())
  21     return 0;
  22   return enter.functions()->CreateAudioConfig(instance, sample_rate,
  23                                               sample_frame_count);
  24 }
  25
  26 uint32_t RecommendSampleFrameCount_1_0(PP_AudioSampleRate sample_rate,
  27                                        uint32_t requested_sample_frame_count) {
  28   return PPB_AudioConfig_Shared::RecommendSampleFrameCount_1_0(sample_rate,
  29       requested_sample_frame_count);
  30 }
  31
  32 uint32_t RecommendSampleFrameCount_1_1(PP_Instance instance,
  33                                        PP_AudioSampleRate sample_rate,
  34                                        uint32_t requested_sample_frame_count) {
  35   EnterInstance enter(instance);
  36   if (enter.failed())
  37     return 0;
  38   return PPB_AudioConfig_Shared::RecommendSampleFrameCount_1_1(instance,
  39       sample_rate, requested_sample_frame_count);
  40 }
  41
  42
  43 PP_Bool IsAudioConfig(PP_Resource resource) {
  44   EnterResource<PPB_AudioConfig_API> enter(resource, false);
  45   return PP_FromBool(enter.succeeded());
  46 }
  47
  48 PP_AudioSampleRate GetSampleRate(PP_Resource config_id) {
  49   EnterResource<PPB_AudioConfig_API> enter(config_id, true);
  50   if (enter.failed())
  51     return PP_AUDIOSAMPLERATE_NONE;
  52   return enter.object()->GetSampleRate();
  53 }
  54
  55 uint32_t GetSampleFrameCount(PP_Resource config_id) {
  56   EnterResource<PPB_AudioConfig_API> enter(config_id, true);
  57   if (enter.failed())
  58     return 0;
  59   return enter.object()->GetSampleFrameCount();
  60 }
  61
  62 PP_AudioSampleRate RecommendSampleRate(PP_Instance instance) {
  63   EnterInstance enter(instance);
  64   if (enter.failed())
  65     return PP_AUDIOSAMPLERATE_NONE;
  66   return PPB_AudioConfig_Shared::RecommendSampleRate(instance);
  67 }
  68
  69 const PPB_AudioConfig_1_0 g_ppb_audio_config_thunk_1_0 = {
  70   &CreateStereo16bit,
  71   &RecommendSampleFrameCount_1_0,
  72   &IsAudioConfig,
  73   &GetSampleRate,
  74   &GetSampleFrameCount
  75 };
  76
  77 const PPB_AudioConfig_1_1 g_ppb_audio_config_thunk_1_1 = {
  78   &CreateStereo16bit,
  79   &RecommendSampleFrameCount_1_1,
  80   &IsAudioConfig,
  81   &GetSampleRate,
  82   &GetSampleFrameCount,
  83   &RecommendSampleRate
  84 };
  85
  86
  87 }  // namespace
  88
  89 const PPB_AudioConfig_1_0* GetPPB_AudioConfig_1_0_Thunk() {
  90   return &g_ppb_audio_config_thunk_1_0;
  91 }
  92
  93 const PPB_AudioConfig_1_1* GetPPB_AudioConfig_1_1_Thunk() {
  94   return &g_ppb_audio_config_thunk_1_1;
  95 }
  96
  97 }  // namespace thunk
  98 }  // namespace ppapi