From 458da8a94877677f086f06cdeecf959ec4283a33 Mon Sep 17 00:00:00 2001 From: Kelebek1 Date: Sat, 16 Jul 2022 23:48:45 +0100 Subject: Project Andio --- .../command/resample/downmix_6ch_to_2ch.cpp | 74 ++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 src/audio_core/renderer/command/resample/downmix_6ch_to_2ch.cpp (limited to 'src/audio_core/renderer/command/resample/downmix_6ch_to_2ch.cpp') diff --git a/src/audio_core/renderer/command/resample/downmix_6ch_to_2ch.cpp b/src/audio_core/renderer/command/resample/downmix_6ch_to_2ch.cpp new file mode 100644 index 000000000..1fd90308a --- /dev/null +++ b/src/audio_core/renderer/command/resample/downmix_6ch_to_2ch.cpp @@ -0,0 +1,74 @@ +// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "audio_core/renderer/adsp/command_list_processor.h" +#include "audio_core/renderer/command/resample/downmix_6ch_to_2ch.h" + +namespace AudioCore::AudioRenderer { + +void DownMix6chTo2chCommand::Dump([[maybe_unused]] const ADSP::CommandListProcessor& processor, + std::string& string) { + string += fmt::format("DownMix6chTo2chCommand\n\tinputs: "); + for (u32 i = 0; i < MaxChannels; i++) { + string += fmt::format("{:02X}, ", inputs[i]); + } + string += "\n\toutputs: "; + for (u32 i = 0; i < MaxChannels; i++) { + string += fmt::format("{:02X}, ", outputs[i]); + } + string += "\n"; +} + +void DownMix6chTo2chCommand::Process(const ADSP::CommandListProcessor& processor) { + auto in_front_left{ + processor.mix_buffers.subspan(inputs[0] * processor.sample_count, processor.sample_count)}; + auto in_front_right{ + processor.mix_buffers.subspan(inputs[1] * processor.sample_count, processor.sample_count)}; + auto in_center{ + processor.mix_buffers.subspan(inputs[2] * processor.sample_count, processor.sample_count)}; + auto in_lfe{ + processor.mix_buffers.subspan(inputs[3] * processor.sample_count, processor.sample_count)}; + auto in_back_left{ + processor.mix_buffers.subspan(inputs[4] * processor.sample_count, processor.sample_count)}; + auto in_back_right{ + processor.mix_buffers.subspan(inputs[5] * processor.sample_count, processor.sample_count)}; + + auto out_front_left{ + processor.mix_buffers.subspan(outputs[0] * processor.sample_count, processor.sample_count)}; + auto out_front_right{ + processor.mix_buffers.subspan(outputs[1] * processor.sample_count, processor.sample_count)}; + auto out_center{ + processor.mix_buffers.subspan(outputs[2] * processor.sample_count, processor.sample_count)}; + auto out_lfe{ + processor.mix_buffers.subspan(outputs[3] * processor.sample_count, processor.sample_count)}; + auto out_back_left{ + processor.mix_buffers.subspan(outputs[4] * processor.sample_count, processor.sample_count)}; + auto out_back_right{ + processor.mix_buffers.subspan(outputs[5] * processor.sample_count, processor.sample_count)}; + + for (u32 i = 0; i < processor.sample_count; i++) { + const auto left_sample{(in_front_left[i] * down_mix_coeff[0] + + in_center[i] * down_mix_coeff[1] + in_lfe[i] * down_mix_coeff[2] + + in_back_left[i] * down_mix_coeff[3]) + .to_int()}; + + const auto right_sample{(in_front_right[i] * down_mix_coeff[0] + + in_center[i] * down_mix_coeff[1] + in_lfe[i] * down_mix_coeff[2] + + in_back_right[i] * down_mix_coeff[3]) + .to_int()}; + + out_front_left[i] = left_sample; + out_front_right[i] = right_sample; + } + + std::memset(out_center.data(), 0, out_center.size_bytes()); + std::memset(out_lfe.data(), 0, out_lfe.size_bytes()); + std::memset(out_back_left.data(), 0, out_back_left.size_bytes()); + std::memset(out_back_right.data(), 0, out_back_right.size_bytes()); +} + +bool DownMix6chTo2chCommand::Verify(const ADSP::CommandListProcessor& processor) { + return true; +} + +} // namespace AudioCore::AudioRenderer -- cgit v1.2.3