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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/thunk/thunk.h"
#include "ppapi/thunk/enter.h"
#include "ppapi/thunk/ppb_audio_config_api.h"
#include "ppapi/thunk/resource_creation_api.h"
namespace ppapi {
namespace thunk {
namespace {
PP_Resource CreateStereo16bit(PP_Instance instance,
PP_AudioSampleRate sample_rate,
uint32_t sample_frame_count) {
EnterFunction<ResourceCreationAPI> enter(instance, true);
if (enter.failed())
return 0;
return enter.functions()->CreateAudioConfig(instance, sample_rate,
sample_frame_count);
}
uint32_t RecommendSampleFrameCount(PP_AudioSampleRate sample_rate,
uint32_t requested_sample_frame_count) {
// TODO(brettw) Currently we don't actually query to get a value from the
// hardware, so we always return the input for in-range values.
if (requested_sample_frame_count < PP_AUDIOMINSAMPLEFRAMECOUNT)
return PP_AUDIOMINSAMPLEFRAMECOUNT;
if (requested_sample_frame_count > PP_AUDIOMAXSAMPLEFRAMECOUNT)
return PP_AUDIOMAXSAMPLEFRAMECOUNT;
return requested_sample_frame_count;
}
PP_Bool IsAudioConfig(PP_Resource resource) {
EnterResource<PPB_AudioConfig_API> enter(resource, false);
return enter.succeeded() ? PP_TRUE : PP_FALSE;
}
PP_AudioSampleRate GetSampleRate(PP_Resource config_id) {
EnterResource<PPB_AudioConfig_API> enter(config_id, true);
if (enter.failed())
return PP_AUDIOSAMPLERATE_NONE;
return enter.object()->GetSampleRate();
}
uint32_t GetSampleFrameCount(PP_Resource config_id) {
EnterResource<PPB_AudioConfig_API> enter(config_id, true);
if (enter.failed())
return 0;
return enter.object()->GetSampleFrameCount();
}
const PPB_AudioConfig g_ppb_audio_config_thunk = {
&CreateStereo16bit,
&RecommendSampleFrameCount,
&IsAudioConfig,
&GetSampleRate,
&GetSampleFrameCount
};
} // namespace
const PPB_AudioConfig* GetPPB_AudioConfig_Thunk() {
return &g_ppb_audio_config_thunk;
}
} // namespace thunk
} // namespace ppapi
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