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// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <memory>
#include <string>
#include "audio_core/audio_core.h"
#include "audio_core/hle/dsp.h"
#include "audio_core/hle/pipe.h"
#include "audio_core/null_sink.h"
#include "audio_core/sink.h"
#include "audio_core/sink_details.h"
#include "core/core_timing.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/hle/service/dsp_dsp.h"
namespace AudioCore {
// Audio Ticks occur about every 5 miliseconds.
static int tick_event; ///< CoreTiming event
static constexpr u64 audio_frame_ticks = 1310252ull; ///< Units: ARM11 cycles
static void AudioTickCallback(u64 /*userdata*/, int cycles_late) {
if (DSP::HLE::Tick()) {
// TODO(merry): Signal all the other interrupts as appropriate.
DSP_DSP::SignalPipeInterrupt(DSP::HLE::DspPipe::Audio);
// HACK(merry): Added to prevent regressions. Will remove soon.
DSP_DSP::SignalPipeInterrupt(DSP::HLE::DspPipe::Binary);
}
// Reschedule recurrent event
CoreTiming::ScheduleEvent(audio_frame_ticks - cycles_late, tick_event);
}
void Init() {
DSP::HLE::Init();
tick_event = CoreTiming::RegisterEvent("AudioCore::tick_event", AudioTickCallback);
CoreTiming::ScheduleEvent(audio_frame_ticks, tick_event);
}
void AddAddressSpace(Kernel::VMManager& address_space) {
auto r0_vma = address_space
.MapBackingMemory(DSP::HLE::region0_base,
reinterpret_cast<u8*>(&DSP::HLE::g_regions[0]),
sizeof(DSP::HLE::SharedMemory), Kernel::MemoryState::IO)
.MoveFrom();
address_space.Reprotect(r0_vma, Kernel::VMAPermission::ReadWrite);
auto r1_vma = address_space
.MapBackingMemory(DSP::HLE::region1_base,
reinterpret_cast<u8*>(&DSP::HLE::g_regions[1]),
sizeof(DSP::HLE::SharedMemory), Kernel::MemoryState::IO)
.MoveFrom();
address_space.Reprotect(r1_vma, Kernel::VMAPermission::ReadWrite);
}
void SelectSink(std::string sink_id) {
if (sink_id == "auto") {
// Auto-select.
// g_sink_details is ordered in terms of desirability, with the best choice at the front.
const auto& sink_detail = g_sink_details.front();
DSP::HLE::SetSink(sink_detail.factory());
return;
}
auto iter =
std::find_if(g_sink_details.begin(), g_sink_details.end(),
[sink_id](const auto& sink_detail) { return sink_detail.id == sink_id; });
if (iter == g_sink_details.end()) {
LOG_ERROR(Audio, "AudioCore::SelectSink given invalid sink_id");
DSP::HLE::SetSink(std::make_unique<NullSink>());
return;
}
DSP::HLE::SetSink(iter->factory());
}
void EnableStretching(bool enable) {
DSP::HLE::EnableStretching(enable);
}
void Shutdown() {
CoreTiming::UnscheduleEvent(tick_event, 0);
DSP::HLE::Shutdown();
}
} // namespace AudioCore
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