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DSP: Add SSE quad-conversion code

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Co-Authored-By: Kelpsy <138107494+kelpsyberry@users.noreply.github.com>
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wheremyfoodat 2024-11-20 17:52:42 +02:00
parent 33f45cf1f5
commit 878ff419fd
4 changed files with 73 additions and 13 deletions
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7
include/audio/hle_core.hpp
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@ -50,7 +50,9 @@ namespace Audio {
using InterpolationMode = HLE::SourceConfiguration::Configuration::InterpolationMode;
using InterpolationState = Audio::Interpolation::State;
DSPMixer::StereoFrame<s16> currentFrame;
// The samples this voice output for this audio frame.
// Aligned to 4 for SIMD purposes.
alignas(4) DSPMixer::StereoFrame<s16> currentFrame;
BufferQueue buffers;
SampleFormat sampleFormat = SampleFormat::ADPCM;
@ -60,7 +62,8 @@ namespace Audio {
// There's one gain configuration for each of the 3 intermediate mixing stages
// And each gain configuration is composed of 4 gain values, one for each sample in a quad-channel sample
std::array<std::array<float, 4>, 3> gains;
// Aligned to 16 for SIMD purposes
alignas(16) std::array<std::array<float, 4>, 3> gains;
// Of the 3 intermediate mix stages, typically only the first one is actually enabled and the other ones do nothing
// Ie their gain is vec4(0.0). We track which stages are disabled (have a gain of all 0s) using this bitfield and skip them
// In order to save up on CPU time.