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audio_renderer: Better voice mixing and 6 channel downmixing 

Supersedes #3738 and #3321
pull/15/merge
David Marcec 6 years ago
committed by bunnei
parent
6ec6cb50dd
commit
9de860a419
3 changed files with 96 additions and 11 deletions
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  1. 96
      src/audio_core/audio_renderer.cpp
  2. 10
      src/audio_core/audio_renderer.h
  3. 1
      src/audio_core/common.h

96
src/audio_core/audio_renderer.cpp
View File

@ -37,9 +37,11 @@ public:
}
void SetWaveIndex(std::size_t index);
std::vector<s16> DequeueSamples(std::size_t sample_count, Core::Memory::Memory& memory);
std::vector<s16> DequeueSamples(std::size_t sample_count, Core::Memory::Memory& memory,
std::array<VoiceResourceInformation*, 6> voice_resources);
void UpdateState();
void RefreshBuffer(Core::Memory::Memory& memory);
void RefreshBuffer(Core::Memory::Memory& memory,
std::array<VoiceResourceInformation*, 6> voice_resources);
private:
bool is_in_use{};
@ -79,7 +81,7 @@ AudioRenderer::AudioRenderer(Core::Timing::CoreTiming& core_timing, Core::Memory
std::shared_ptr<Kernel::WritableEvent> buffer_event,
std::size_t instance_number)
: worker_params{params}, buffer_event{buffer_event}, voices(params.voice_count),
effects(params.effect_count), memory{memory_} {
voice_resources(params.voice_count), effects(params.effect_count), memory{memory_} {
behavior_info.SetUserRevision(params.revision);
audio_out = std::make_unique<AudioCore::AudioOut>();
stream = audio_out->OpenStream(core_timing, STREAM_SAMPLE_RATE, STREAM_NUM_CHANNELS,
@ -127,6 +129,12 @@ ResultVal<std::vector<u8>> AudioRenderer::UpdateAudioRenderer(const std::vector<
input_params.data() + sizeof(UpdateDataHeader) + config.behavior_size,
memory_pool_count * sizeof(MemoryPoolInfo));
// Copy voice resources
const std::size_t voice_resource_offset{sizeof(UpdateDataHeader) + config.behavior_size +
config.memory_pools_size};
std::memcpy(voice_resources.data(), input_params.data() + voice_resource_offset,
sizeof(VoiceResourceInformation) * voice_resources.size());
// Copy VoiceInfo structs
std::size_t voice_offset{sizeof(UpdateDataHeader) + config.behavior_size +
config.memory_pools_size + config.voice_resource_size};
@ -220,14 +228,15 @@ void AudioRenderer::VoiceState::SetWaveIndex(std::size_t index) {
is_refresh_pending = true;
}
std::vector<s16> AudioRenderer::VoiceState::DequeueSamples(std::size_t sample_count,
Core::Memory::Memory& memory) {
std::vector<s16> AudioRenderer::VoiceState::DequeueSamples(
std::size_t sample_count, Core::Memory::Memory& memory,
std::array<VoiceResourceInformation*, 6> voice_resources) {
if (!IsPlaying()) {
return {};
}
if (is_refresh_pending) {
RefreshBuffer(memory);
RefreshBuffer(memory, voice_resources);
}
const std::size_t max_size{samples.size() - offset};
@ -271,7 +280,8 @@ void AudioRenderer::VoiceState::UpdateState() {
is_in_use = info.is_in_use;
}
void AudioRenderer::VoiceState::RefreshBuffer(Core::Memory::Memory& memory) {
void AudioRenderer::VoiceState::RefreshBuffer(
Core::Memory::Memory& memory, std::array<VoiceResourceInformation*, 6> voice_resources) {
const auto wave_buffer_address = info.wave_buffer[wave_index].buffer_addr;
const auto wave_buffer_size = info.wave_buffer[wave_index].buffer_sz;
std::vector<s16> new_samples(wave_buffer_size / sizeof(s16));
@ -296,17 +306,75 @@ void AudioRenderer::VoiceState::RefreshBuffer(Core::Memory::Memory& memory) {
}
switch (info.channel_count) {
case 1:
case 1: {
// 1 channel is upsampled to 2 channel
samples.resize(new_samples.size() * 2);
for (std::size_t index = 0; index < new_samples.size(); ++index) {
samples[index * 2] = new_samples[index];
samples[index * 2 + 1] = new_samples[index];
auto sample = static_cast<float>(new_samples[index]);
if (voice_resources[0]->in_use) {
sample *= voice_resources[0]->mix_volumes[0];
}
samples[index * 2] = static_cast<s16>(sample);
samples[index * 2 + 1] = static_cast<s16>(sample);
}
break;
}
case 2: {
// 2 channel is played as is
samples = std::move(new_samples);
const std::size_t sample_count = (samples.size() / 2);
for (std::size_t index = 0; index < sample_count; ++index) {
const std::size_t index_l = index * 2;
const std::size_t index_r = index * 2 + 1;
auto sample_l = static_cast<float>(samples[index_l]);
auto sample_r = static_cast<float>(samples[index_r]);
if (voice_resources[0]->in_use) {
sample_l *= voice_resources[0]->mix_volumes[0];
}
if (voice_resources[1]->in_use) {
sample_l *= voice_resources[1]->mix_volumes[1];
}
samples[index_l] = static_cast<s16>(sample_l);
samples[index_r] = static_cast<s16>(sample_r);
}
break;
}
case 6: {
samples.resize((new_samples.size() / 6) * 2);
const std::size_t sample_count = samples.size() / 2;
for (std::size_t index = 0; index < sample_count; ++index) {
auto FL = static_cast<float>(new_samples[index * 6]);
auto FR = static_cast<float>(new_samples[index * 6 + 1]);
auto FC = static_cast<float>(new_samples[index * 6 + 2]);
auto BL = static_cast<float>(new_samples[index * 6 + 4]);
auto BR = static_cast<float>(new_samples[index * 6 + 5]);
if (voice_resources[0]->in_use) {
FL *= voice_resources[0]->mix_volumes[0];
}
if (voice_resources[1]->in_use) {
FR *= voice_resources[1]->mix_volumes[1];
}
if (voice_resources[2]->in_use) {
FC *= voice_resources[2]->mix_volumes[2];
}
if (voice_resources[4]->in_use) {
BL *= voice_resources[4]->mix_volumes[4];
}
if (voice_resources[5]->in_use) {
BR *= voice_resources[5]->mix_volumes[5];
}
samples[index * 2] = static_cast<s16>(0.3694f * FL + 0.2612f * FC + 0.3694f * BL);
samples[index * 2 + 1] = static_cast<s16>(0.3694f * FR + 0.2612f * FC + 0.3694f * BR);
}
break;
}
default:
@ -352,11 +420,17 @@ void AudioRenderer::QueueMixedBuffer(Buffer::Tag tag) {
if (!voice.IsPlaying()) {
continue;
}
std::array<VoiceResourceInformation*, 6> resources{};
for (u32 channel = 0; channel < voice.GetInfo().channel_count; channel++) {
const auto channel_resource_id = voice.GetInfo().voice_channel_resource_ids[channel];
resources[channel] = &voice_resources[channel_resource_id];
}
std::size_t offset{};
s64 samples_remaining{BUFFER_SIZE};
while (samples_remaining > 0) {
const std::vector<s16> samples{voice.DequeueSamples(samples_remaining, memory)};
const std::vector<s16> samples{
voice.DequeueSamples(samples_remaining, memory, resources)};
if (samples.empty()) {
break;

10
src/audio_core/audio_renderer.h
View File

@ -9,6 +9,7 @@
#include <vector>
#include "audio_core/behavior_info.h"
#include "audio_core/common.h"
#include "audio_core/stream.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
@ -116,6 +117,14 @@ struct WaveBuffer {
};
static_assert(sizeof(WaveBuffer) == 0x38, "WaveBuffer has wrong size");
struct VoiceResourceInformation {
s32_le id{};
std::array<float_le, MAX_MIX_BUFFERS> mix_volumes{};
bool in_use{};
INSERT_PADDING_BYTES(11);
};
static_assert(sizeof(VoiceResourceInformation) == 0x70, "VoiceResourceInformation has wrong size");
struct VoiceInfo {
u32_le id;
u32_le node_id;
@ -244,6 +253,7 @@ private:
AudioRendererParameter worker_params;
std::shared_ptr<Kernel::WritableEvent> buffer_event;
std::vector<VoiceState> voices;
std::vector<VoiceResourceInformation> voice_resources;
std::vector<EffectState> effects;
std::unique_ptr<AudioOut> audio_out;
StreamPtr stream;

1
src/audio_core/common.h
View File

@ -14,6 +14,7 @@ constexpr ResultCode ERR_INVALID_PARAMETERS{ErrorModule::Audio, 41};
}
constexpr u32_le CURRENT_PROCESS_REVISION = Common::MakeMagic('R', 'E', 'V', '8');
constexpr std::size_t MAX_MIX_BUFFERS = 24;
static constexpr u32 VersionFromRevision(u32_le rev) {
// "REV7" -> 7

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