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89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
#ifndef HAVE_PULSE
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#error "PulseAudio support disabled but still being built."
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#endif
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#include "Emu/System.h"
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#include "PulseBackend.h"
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#include <pulse/simple.h>
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#include <pulse/error.h>
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PulseBackend::PulseBackend()
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: AudioBackend()
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{
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}
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PulseBackend::~PulseBackend()
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{
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this->Close();
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}
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void PulseBackend::Close()
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{
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if (this->connection)
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{
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pa_simple_free(this->connection);
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this->connection = nullptr;
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}
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}
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void PulseBackend::Open(u32 /* num_buffers */)
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{
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pa_sample_spec ss;
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ss.format = (m_sample_size == 2) ? PA_SAMPLE_S16LE : PA_SAMPLE_FLOAT32LE;
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ss.rate = m_sampling_rate;
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pa_channel_map channel_map;
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if (m_channels == 2)
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{
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channel_map.channels = 2;
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channel_map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
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channel_map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
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}
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else if (m_channels == 6)
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{
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channel_map.channels = 6;
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channel_map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
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channel_map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
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channel_map.map[2] = PA_CHANNEL_POSITION_FRONT_CENTER;
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channel_map.map[3] = PA_CHANNEL_POSITION_LFE;
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channel_map.map[4] = PA_CHANNEL_POSITION_REAR_LEFT;
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channel_map.map[5] = PA_CHANNEL_POSITION_REAR_RIGHT;
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}
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else
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{
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channel_map.channels = 8;
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channel_map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
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channel_map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
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channel_map.map[2] = PA_CHANNEL_POSITION_FRONT_CENTER;
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channel_map.map[3] = PA_CHANNEL_POSITION_LFE;
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channel_map.map[4] = PA_CHANNEL_POSITION_REAR_LEFT;
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channel_map.map[5] = PA_CHANNEL_POSITION_REAR_RIGHT;
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channel_map.map[6] = PA_CHANNEL_POSITION_SIDE_LEFT;
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channel_map.map[7] = PA_CHANNEL_POSITION_SIDE_RIGHT;
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}
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ss.channels = channel_map.channels;
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int err;
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this->connection = pa_simple_new(NULL, "RPCS3", PA_STREAM_PLAYBACK, NULL, "Game", &ss, &channel_map, NULL, &err);
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if (!this->connection)
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{
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fprintf(stderr, "PulseAudio: Failed to initialize audio: %s\n", pa_strerror(err));
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}
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}
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bool PulseBackend::AddData(const void* src, u32 num_samples)
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{
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AUDIT(this->connection);
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int err;
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if (pa_simple_write(this->connection, src, num_samples * m_sample_size, &err) < 0)
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{
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fprintf(stderr, "PulseAudio: Failed to write audio stream: %s\n", pa_strerror(err));
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return false;
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}
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return true;
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}
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