dolphin/Source/Core/AudioCommon/CubebUtils.cpp

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// Copyright 2017 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <cstdarg>
#include <cstddef>
#include <cstring>
#include "AudioCommon/CubebUtils.h"
#include "Common/CommonPaths.h"
#include "Common/Logging/Log.h"
#include "Common/Logging/LogManager.h"
#include "Common/StringUtil.h"
#include <cubeb/cubeb.h>
static ptrdiff_t s_path_cutoff_point = 0;
static void LogCallback(const char* format, ...)
{
auto* instance = Common::Log::LogManager::GetInstance();
if (instance == nullptr)
return;
va_list args;
va_start(args, format);
const char* filename = va_arg(args, const char*) + s_path_cutoff_point;
const int lineno = va_arg(args, int);
const std::string adapted_format(StripSpaces(format + strlen("%s:%d:")));
const std::string message = StringFromFormatV(adapted_format.c_str(), args);
va_end(args);
instance->Log(Common::Log::LNOTICE, Common::Log::AUDIO, filename, lineno, message.c_str());
}
static void DestroyContext(cubeb* ctx)
{
cubeb_destroy(ctx);
if (cubeb_set_log_callback(CUBEB_LOG_DISABLED, nullptr) != CUBEB_OK)
{
ERROR_LOG_FMT(AUDIO, "Error removing cubeb log callback");
}
}
std::shared_ptr<cubeb> CubebUtils::GetContext()
{
static std::weak_ptr<cubeb> weak;
std::shared_ptr<cubeb> shared = weak.lock();
// Already initialized
if (shared)
return shared;
const char* filename = __FILE__;
const char* match_point = strstr(filename, DIR_SEP "Source" DIR_SEP "Core" DIR_SEP);
if (match_point)
{
s_path_cutoff_point = match_point - filename + strlen(DIR_SEP "Externals" DIR_SEP);
}
if (cubeb_set_log_callback(CUBEB_LOG_NORMAL, LogCallback) != CUBEB_OK)
{
ERROR_LOG_FMT(AUDIO, "Error setting cubeb log callback");
}
cubeb* ctx;
if (cubeb_init(&ctx, "Dolphin", nullptr) != CUBEB_OK)
{
ERROR_LOG_FMT(AUDIO, "Error initializing cubeb library");
return nullptr;
}
INFO_LOG_FMT(AUDIO, "Cubeb initialized using {} backend", cubeb_get_backend_id(ctx));
weak = shared = {ctx, DestroyContext};
return shared;
}