Cloning a bunch of stuff from the native_client repository at r6528

ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio_config.cc

Index: ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio_config.cc
===================================================================
--- ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio_config.cc	(revision 0)
+++ ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio_config.cc	(revision 0)
@@ -0,0 +1,121 @@
+// Copyright (c) 2010 The Native Client 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 "native_client/src/shared/ppapi_proxy/plugin_ppb_audio_config.h"
+
+#include <stdio.h>
+#include <string.h>
+#include "srpcgen/ppb_rpc.h"
+#include "native_client/src/include/portability.h"
+#include "native_client/src/shared/ppapi_proxy/plugin_globals.h"
+#include "native_client/src/shared/ppapi_proxy/utility.h"
+#include "native_client/src/shared/srpc/nacl_srpc.h"
+#include "ppapi/c/ppb_audio_config.h"
+
+namespace ppapi_proxy {
+
+namespace {
+
+PP_AudioSampleRate GetSampleRate(PP_Resource config) {
+  DebugPrintf("PPB_AudioConfig::GetSampleRate: config=%"NACL_PRIu32"\n",
+              config);
+  int32_t sample_rate;
+  NaClSrpcError srpc_result =
+      PpbAudioConfigRpcClient::PPB_AudioConfig_GetSampleRate(
+          GetMainSrpcChannel(),
+          config,
+          &sample_rate);
+  DebugPrintf("PPB_AudioConfig::GetSampleRate: %s\n",
+              NaClSrpcErrorString(srpc_result));
+  if (NACL_SRPC_RESULT_OK == srpc_result) {
+    return static_cast<PP_AudioSampleRate>(sample_rate);
+  }
+  return PP_AUDIOSAMPLERATE_NONE;
+}
+
+uint32_t GetSampleFrameCount(PP_Resource config) {
+  DebugPrintf("PPB_AudioConfig::GetSampleFrameCount: config=%"NACL_PRIu32"\n",
+              config);
+  int32_t sample_frame_count;
+  NaClSrpcError srpc_result =
+      PpbAudioConfigRpcClient::PPB_AudioConfig_GetSampleFrameCount(
+          GetMainSrpcChannel(),
+          config,
+          &sample_frame_count);
+  DebugPrintf("PPB_AudioConfig::GetSampleFrameCount: %s\n",
+              NaClSrpcErrorString(srpc_result));
+  if (NACL_SRPC_RESULT_OK == srpc_result) {
+    return static_cast<uint32_t>(sample_frame_count);
+  }
+  return 0;
+}
+
+uint32_t RecommendSampleFrameCount(PP_AudioSampleRate sample_rate,
+                                   uint32_t request_sample_frame_count) {
+  DebugPrintf("PPB_AudioConfig::RecommendSampleFrameCount");
+  int32_t out_sample_frame_count;
+  NaClSrpcError srpc_result =
+      PpbAudioConfigRpcClient::PPB_AudioConfig_RecommendSampleFrameCount(
+          GetMainSrpcChannel(),
+          static_cast<int32_t>(sample_rate),
+          static_cast<int32_t>(request_sample_frame_count),
+          &out_sample_frame_count);
+  DebugPrintf("PPB_AudioConfig::RecommendSampleFrameCount: %s\n",
+              NaClSrpcErrorString(srpc_result));
+  if (NACL_SRPC_RESULT_OK == srpc_result) {
+    return static_cast<uint32_t>(out_sample_frame_count);
+  }
+  return 0;
+}
+
+PP_Bool IsAudioConfig(PP_Resource resource) {
+  DebugPrintf("PPB_AudioConfig::IsAudioConfig: resource=%"NACL_PRIu32"\n",
+              resource);
+  int32_t success;
+  NaClSrpcError srpc_result =
+      PpbAudioConfigRpcClient::PPB_AudioConfig_IsAudioConfig(
+          GetMainSrpcChannel(),
+          resource,
+          &success);
+  DebugPrintf("PPB_AudioConfig::IsAudioConfig: %s\n",
+              NaClSrpcErrorString(srpc_result));
+  if (NACL_SRPC_RESULT_OK == srpc_result && success) {
+    return PP_TRUE;
+  }
+  return PP_FALSE;
+}
+
+PP_Resource CreateStereo16Bit(PP_Instance instance,
+                              PP_AudioSampleRate sample_rate,
+                              uint32_t sample_frame_count) {
+  DebugPrintf("PPB_AudioConfig::CreateStereo16Bit: instance=%"NACL_PRIu32"\n",
+              instance);
+  PP_Resource resource;
+  NaClSrpcError srpc_result =
+      PpbAudioConfigRpcClient::PPB_AudioConfig_CreateStereo16Bit(
+          GetMainSrpcChannel(),
+          instance,
+          static_cast<int32_t>(sample_rate),
+          static_cast<int32_t>(sample_frame_count),
+          &resource);
+  DebugPrintf("PPB_AudioConfig::CreateStereo16Bit: %s\n",
+              NaClSrpcErrorString(srpc_result));
+  if (NACL_SRPC_RESULT_OK == srpc_result) {
+    return resource;
+  }
+  return kInvalidResourceId;
+}
+}  // namespace
+
+const PPB_AudioConfig* PluginAudioConfig::GetInterface() {
+  static const PPB_AudioConfig audio_config_interface = {
+    CreateStereo16Bit,
+    RecommendSampleFrameCount,
+    IsAudioConfig,
+    GetSampleRate,
+    GetSampleFrameCount,
+  };
+  return &audio_config_interface;
+}
+}  // namespace ppapi_proxy