mirror of https://github.com/stenzek/duckstation
FrontendCommon: Drop SDL2 audio output
Connor McLaughlin
4 years ago
parent
679f1a51db
commit
ea65c0970c
@ -1,98 +0,0 @@
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#include "sdl_audio_stream.h"
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#include "common/assert.h"
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#include "common/log.h"
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#include "common_host.h"
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#include "sdl_initializer.h"
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#include <SDL.h>
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Log_SetChannel(SDLAudioStream);
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SDLAudioStream::SDLAudioStream(u32 sample_rate, u32 channels, u32 buffer_ms, AudioStretchMode stretch)
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: AudioStream(sample_rate, channels, buffer_ms, stretch)
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{
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}
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SDLAudioStream::~SDLAudioStream()
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{
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if (IsOpen())
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SDLAudioStream::CloseDevice();
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}
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std::unique_ptr<AudioStream> CommonHost::CreateSDLAudioStream(u32 sample_rate, u32 channels, u32 buffer_ms,
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u32 latency_ms, AudioStretchMode stretch)
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{
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std::unique_ptr<SDLAudioStream> stream(std::make_unique<SDLAudioStream>(sample_rate, channels, buffer_ms, stretch));
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if (!stream->OpenDevice(latency_ms))
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stream.reset();
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return stream;
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}
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bool SDLAudioStream::OpenDevice(u32 latency_ms)
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{
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DebugAssert(!IsOpen());
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FrontendCommon::EnsureSDLInitialized();
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if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0)
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{
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Log_ErrorPrintf("SDL_InitSubSystem(SDL_INIT_AUDIO) failed");
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return false;
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}
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SDL_AudioSpec spec = {};
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spec.freq = m_sample_rate;
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spec.channels = static_cast<Uint8>(m_channels);
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spec.format = AUDIO_S16;
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spec.samples = static_cast<Uint16>(GetBufferSizeForMS(m_sample_rate, (latency_ms == 0) ? m_buffer_ms : latency_ms));
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spec.callback = AudioCallback;
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spec.userdata = static_cast<void*>(this);
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SDL_AudioSpec obtained_spec = {};
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m_device_id = SDL_OpenAudioDevice(nullptr, 0, &spec, &obtained_spec, SDL_AUDIO_ALLOW_SAMPLES_CHANGE);
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if (m_device_id == 0)
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{
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Log_ErrorPrintf("SDL_OpenAudioDevice() failed: %s", SDL_GetError());
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SDL_QuitSubSystem(SDL_INIT_AUDIO);
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return false;
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}
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Log_DevPrintf("Requested %u frame buffer, got %u frame buffer", spec.samples, obtained_spec.samples);
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BaseInitialize();
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m_volume = 100;
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m_paused = false;
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SDL_PauseAudioDevice(m_device_id, 0);
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return true;
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}
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void SDLAudioStream::SetPaused(bool paused)
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{
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if (m_paused == paused)
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return;
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SDL_PauseAudioDevice(m_device_id, paused ? 1 : 0);
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m_paused = paused;
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}
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void SDLAudioStream::CloseDevice()
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{
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SDL_CloseAudioDevice(m_device_id);
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SDL_QuitSubSystem(SDL_INIT_AUDIO);
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m_device_id = 0;
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}
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void SDLAudioStream::AudioCallback(void* userdata, uint8_t* stream, int len)
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{
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SDLAudioStream* const this_ptr = static_cast<SDLAudioStream*>(userdata);
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const u32 num_frames = len / sizeof(SampleType) / this_ptr->m_channels;
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this_ptr->ReadFrames(reinterpret_cast<SampleType*>(stream), num_frames);
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}
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void SDLAudioStream::SetOutputVolume(u32 volume)
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{
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if (m_volume == volume)
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return;
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Panic("Fixme");
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}
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@ -1,23 +0,0 @@
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#pragma once
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#include "util/audio_stream.h"
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#include <cstdint>
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class SDLAudioStream final : public AudioStream
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{
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public:
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SDLAudioStream(u32 sample_rate, u32 channels, u32 buffer_ms, AudioStretchMode stretch);
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~SDLAudioStream();
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void SetPaused(bool paused) override;
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void SetOutputVolume(u32 volume) override;
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bool OpenDevice(u32 latency_ms);
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void CloseDevice();
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protected:
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ALWAYS_INLINE bool IsOpen() const { return (m_device_id != 0); }
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static void AudioCallback(void* userdata, uint8_t* stream, int len);
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u32 m_device_id = 0;
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};
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