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Diffstat (limited to 'src/audio_core/hle/mixers.cpp')
| -rw-r--r-- | src/audio_core/hle/mixers.cpp | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/src/audio_core/hle/mixers.cpp b/src/audio_core/hle/mixers.cpp deleted file mode 100644 index 6cc81dfca..000000000 --- a/src/audio_core/hle/mixers.cpp +++ /dev/null @@ -1,210 +0,0 @@ -// Copyright 2016 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <cstddef> - -#include "audio_core/hle/common.h" -#include "audio_core/hle/dsp.h" -#include "audio_core/hle/mixers.h" -#include "common/assert.h" -#include "common/logging/log.h" -#include "common/math_util.h" - -namespace DSP { -namespace HLE { - -void Mixers::Reset() { - current_frame.fill({}); - state = {}; -} - -DspStatus Mixers::Tick(DspConfiguration& config, const IntermediateMixSamples& read_samples, - IntermediateMixSamples& write_samples, - const std::array<QuadFrame32, 3>& input) { - ParseConfig(config); - - AuxReturn(read_samples); - AuxSend(write_samples, input); - - MixCurrentFrame(); - - return GetCurrentStatus(); -} - -void Mixers::ParseConfig(DspConfiguration& config) { - if (!config.dirty_raw) { - return; - } - - if (config.mixer1_enabled_dirty) { - config.mixer1_enabled_dirty.Assign(0); - state.mixer1_enabled = config.mixer1_enabled != 0; - LOG_TRACE(Audio_DSP, "mixers mixer1_enabled = %hu", config.mixer1_enabled); - } - - if (config.mixer2_enabled_dirty) { - config.mixer2_enabled_dirty.Assign(0); - state.mixer2_enabled = config.mixer2_enabled != 0; - LOG_TRACE(Audio_DSP, "mixers mixer2_enabled = %hu", config.mixer2_enabled); - } - - if (config.volume_0_dirty) { - config.volume_0_dirty.Assign(0); - state.intermediate_mixer_volume[0] = config.volume[0]; - LOG_TRACE(Audio_DSP, "mixers volume[0] = %f", config.volume[0]); - } - - if (config.volume_1_dirty) { - config.volume_1_dirty.Assign(0); - state.intermediate_mixer_volume[1] = config.volume[1]; - LOG_TRACE(Audio_DSP, "mixers volume[1] = %f", config.volume[1]); - } - - if (config.volume_2_dirty) { - config.volume_2_dirty.Assign(0); - state.intermediate_mixer_volume[2] = config.volume[2]; - LOG_TRACE(Audio_DSP, "mixers volume[2] = %f", config.volume[2]); - } - - if (config.output_format_dirty) { - config.output_format_dirty.Assign(0); - state.output_format = config.output_format; - LOG_TRACE(Audio_DSP, "mixers output_format = %zu", - static_cast<size_t>(config.output_format)); - } - - if (config.headphones_connected_dirty) { - config.headphones_connected_dirty.Assign(0); - // Do nothing. (Note: Whether headphones are connected does affect coefficients used for - // surround sound.) - LOG_TRACE(Audio_DSP, "mixers headphones_connected=%hu", config.headphones_connected); - } - - if (config.dirty_raw) { - LOG_DEBUG(Audio_DSP, "mixers remaining_dirty=%x", config.dirty_raw); - } - - config.dirty_raw = 0; -} - -static s16 ClampToS16(s32 value) { - return static_cast<s16>(MathUtil::Clamp(value, -32768, 32767)); -} - -static std::array<s16, 2> AddAndClampToS16(const std::array<s16, 2>& a, - const std::array<s16, 2>& b) { - return {ClampToS16(static_cast<s32>(a[0]) + static_cast<s32>(b[0])), - ClampToS16(static_cast<s32>(a[1]) + static_cast<s32>(b[1]))}; -} - -void Mixers::DownmixAndMixIntoCurrentFrame(float gain, const QuadFrame32& samples) { - // TODO(merry): Limiter. (Currently we're performing final mixing assuming a disabled limiter.) - - switch (state.output_format) { - case OutputFormat::Mono: - std::transform( - current_frame.begin(), current_frame.end(), samples.begin(), current_frame.begin(), - [gain](const std::array<s16, 2>& accumulator, - const std::array<s32, 4>& sample) -> std::array<s16, 2> { - // Downmix to mono - s16 mono = ClampToS16(static_cast<s32>( - (gain * sample[0] + gain * sample[1] + gain * sample[2] + gain * sample[3]) / - 2)); - // Mix into current frame - return AddAndClampToS16(accumulator, {mono, mono}); - }); - return; - - case OutputFormat::Surround: - // TODO(merry): Implement surround sound. - // fallthrough - - case OutputFormat::Stereo: - std::transform( - current_frame.begin(), current_frame.end(), samples.begin(), current_frame.begin(), - [gain](const std::array<s16, 2>& accumulator, - const std::array<s32, 4>& sample) -> std::array<s16, 2> { - // Downmix to stereo - s16 left = ClampToS16(static_cast<s32>(gain * sample[0] + gain * sample[2])); - s16 right = ClampToS16(static_cast<s32>(gain * sample[1] + gain * sample[3])); - // Mix into current frame - return AddAndClampToS16(accumulator, {left, right}); - }); - return; - } - - UNREACHABLE_MSG("Invalid output_format %zu", static_cast<size_t>(state.output_format)); -} - -void Mixers::AuxReturn(const IntermediateMixSamples& read_samples) { - // NOTE: read_samples.mix{1,2}.pcm32 annoyingly have their dimensions in reverse order to - // QuadFrame32. - - if (state.mixer1_enabled) { - for (size_t sample = 0; sample < samples_per_frame; sample++) { - for (size_t channel = 0; channel < 4; channel++) { - state.intermediate_mix_buffer[1][sample][channel] = - read_samples.mix1.pcm32[channel][sample]; - } - } - } - - if (state.mixer2_enabled) { - for (size_t sample = 0; sample < samples_per_frame; sample++) { - for (size_t channel = 0; channel < 4; channel++) { - state.intermediate_mix_buffer[2][sample][channel] = - read_samples.mix2.pcm32[channel][sample]; - } - } - } -} - -void Mixers::AuxSend(IntermediateMixSamples& write_samples, - const std::array<QuadFrame32, 3>& input) { - // NOTE: read_samples.mix{1,2}.pcm32 annoyingly have their dimensions in reverse order to - // QuadFrame32. - - state.intermediate_mix_buffer[0] = input[0]; - - if (state.mixer1_enabled) { - for (size_t sample = 0; sample < samples_per_frame; sample++) { - for (size_t channel = 0; channel < 4; channel++) { - write_samples.mix1.pcm32[channel][sample] = input[1][sample][channel]; - } - } - } else { - state.intermediate_mix_buffer[1] = input[1]; - } - - if (state.mixer2_enabled) { - for (size_t sample = 0; sample < samples_per_frame; sample++) { - for (size_t channel = 0; channel < 4; channel++) { - write_samples.mix2.pcm32[channel][sample] = input[2][sample][channel]; - } - } - } else { - state.intermediate_mix_buffer[2] = input[2]; - } -} - -void Mixers::MixCurrentFrame() { - current_frame.fill({}); - - for (size_t mix = 0; mix < 3; mix++) { - DownmixAndMixIntoCurrentFrame(state.intermediate_mixer_volume[mix], - state.intermediate_mix_buffer[mix]); - } - - // TODO(merry): Compressor. (We currently assume a disabled compressor.) -} - -DspStatus Mixers::GetCurrentStatus() const { - DspStatus status; - status.unknown = 0; - status.dropped_frames = 0; - return status; -} - -} // namespace HLE -} // namespace DSP |