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Diffstat (limited to '')
-rw-r--r-- | src/audio_core/stream.cpp | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/src/audio_core/stream.cpp b/src/audio_core/stream.cpp deleted file mode 100644 index f8034b04b..000000000 --- a/src/audio_core/stream.cpp +++ /dev/null @@ -1,174 +0,0 @@ -// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project -// SPDX-License-Identifier: GPL-2.0-or-later - -#include <algorithm> -#include <cmath> - -#include "audio_core/sink.h" -#include "audio_core/sink_details.h" -#include "audio_core/sink_stream.h" -#include "audio_core/stream.h" -#include "common/assert.h" -#include "common/logging/log.h" -#include "common/settings.h" -#include "core/core_timing.h" - -namespace AudioCore { - -constexpr std::size_t MaxAudioBufferCount{32}; - -u32 Stream::GetNumChannels() const { - switch (format) { - case Format::Mono16: - return 1; - case Format::Stereo16: - return 2; - case Format::Multi51Channel16: - return 6; - } - UNIMPLEMENTED_MSG("Unimplemented format={}", static_cast<u32>(format)); - return {}; -} - -Stream::Stream(Core::Timing::CoreTiming& core_timing_, u32 sample_rate_, Format format_, - ReleaseCallback&& release_callback_, SinkStream& sink_stream_, std::string&& name_) - : sample_rate{sample_rate_}, format{format_}, release_callback{std::move(release_callback_)}, - sink_stream{sink_stream_}, core_timing{core_timing_}, name{std::move(name_)} { - release_event = - Core::Timing::CreateEvent(name, [this](std::uintptr_t, std::chrono::nanoseconds ns_late) { - ReleaseActiveBuffer(ns_late); - }); -} - -void Stream::Play() { - state = State::Playing; - PlayNextBuffer(); -} - -void Stream::Stop() { - state = State::Stopped; - UNIMPLEMENTED(); -} - -bool Stream::Flush() { - const bool had_buffers = !queued_buffers.empty(); - while (!queued_buffers.empty()) { - queued_buffers.pop(); - } - return had_buffers; -} - -void Stream::SetVolume(float volume) { - game_volume = volume; -} - -Stream::State Stream::GetState() const { - return state; -} - -std::chrono::nanoseconds Stream::GetBufferReleaseNS(const Buffer& buffer) const { - const std::size_t num_samples{buffer.GetSamples().size() / GetNumChannels()}; - return std::chrono::nanoseconds((static_cast<u64>(num_samples) * 1000000000ULL) / sample_rate); -} - -static void VolumeAdjustSamples(std::vector<s16>& samples, float game_volume) { - const float volume{std::clamp(Settings::Volume() - (1.0f - game_volume), 0.0f, 1.0f)}; - - if (volume == 1.0f) { - return; - } - - // Perceived volume is not the same as the volume level - const float volume_scale_factor = (0.85f * ((volume * volume) - volume)) + volume; - for (auto& sample : samples) { - sample = static_cast<s16>(sample * volume_scale_factor); - } -} - -void Stream::PlayNextBuffer(std::chrono::nanoseconds ns_late) { - if (!IsPlaying()) { - // Ensure we are in playing state before playing the next buffer - sink_stream.Flush(); - return; - } - - if (active_buffer) { - // Do not queue a new buffer if we are already playing a buffer - return; - } - - if (queued_buffers.empty()) { - // No queued buffers - we are effectively paused - sink_stream.Flush(); - return; - } - - active_buffer = queued_buffers.front(); - queued_buffers.pop(); - - auto& samples = active_buffer->GetSamples(); - - VolumeAdjustSamples(samples, game_volume); - - sink_stream.EnqueueSamples(GetNumChannels(), samples); - played_samples += samples.size(); - - const auto buffer_release_ns = GetBufferReleaseNS(*active_buffer); - - // If ns_late is higher than the update rate ignore the delay - if (ns_late > buffer_release_ns) { - ns_late = {}; - } - - core_timing.ScheduleEvent(buffer_release_ns - ns_late, release_event, {}); -} - -void Stream::ReleaseActiveBuffer(std::chrono::nanoseconds ns_late) { - ASSERT(active_buffer); - released_buffers.push(std::move(active_buffer)); - release_callback(); - PlayNextBuffer(ns_late); -} - -bool Stream::QueueBuffer(BufferPtr&& buffer) { - if (queued_buffers.size() < MaxAudioBufferCount) { - queued_buffers.push(std::move(buffer)); - PlayNextBuffer(); - return true; - } - return false; -} - -bool Stream::ContainsBuffer([[maybe_unused]] Buffer::Tag tag) const { - UNIMPLEMENTED(); - return {}; -} - -std::vector<Buffer::Tag> Stream::GetTagsAndReleaseBuffers(std::size_t max_count) { - std::vector<Buffer::Tag> tags; - for (std::size_t count = 0; count < max_count && !released_buffers.empty(); ++count) { - if (released_buffers.front()) { - tags.push_back(released_buffers.front()->GetTag()); - } else { - ASSERT_MSG(false, "Invalid tag in released_buffers!"); - } - released_buffers.pop(); - } - return tags; -} - -std::vector<Buffer::Tag> Stream::GetTagsAndReleaseBuffers() { - std::vector<Buffer::Tag> tags; - tags.reserve(released_buffers.size()); - while (!released_buffers.empty()) { - if (released_buffers.front()) { - tags.push_back(released_buffers.front()->GetTag()); - } else { - ASSERT_MSG(false, "Invalid tag in released_buffers!"); - } - released_buffers.pop(); - } - return tags; -} - -} // namespace AudioCore |