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DSP: Add SSE quad-conversion code

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Co-Authored-By: Kelpsy <138107494+kelpsyberry@users.noreply.github.com>
This commit is contained in:
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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15
src/core/audio/hle_core.cpp
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@ -7,6 +7,7 @@
#include <utility>
#include "audio/aac_decoder.hpp"
#include "audio/dsp_simd.hpp"
#include "services/dsp.hpp"
namespace Audio {
@ -228,7 +229,9 @@ namespace Audio {
// The DSP checks the DSP configuration dirty bits on every frame, applies them, and clears them
read.dspConfiguration.dirtyRaw = 0;
read.dspConfiguration.dirtyRaw2 = 0;
std::array<IntermediateMix, 3> mixes{};
// The intermediate mix buffer is aligned to 16 for SIMD purposes
alignas(16) std::array<IntermediateMix, 3> mixes{};
for (int i = 0; i < sourceCount; i++) {
// Update source configuration from the read region of shared memory
@ -263,15 +266,7 @@ namespace Audio {
IntermediateMix& intermediateMix = mixes[mix];
const std::array<float, 4>& gains = source.gains[mix];
// TODO: SIMD implementations
for (usize sampleIndex = 0; sampleIndex < Audio::samplesInFrame; sampleIndex++) {
// Mono samples are in the format: (l, r)
// When converting to quad, gain0 and gain2 are applied to the left sample, gain1 and gain3 to the right one
intermediateMix[sampleIndex][0] += s32(source.currentFrame[sampleIndex][0] * gains[0]);
intermediateMix[sampleIndex][1] += s32(source.currentFrame[sampleIndex][1] * gains[1]);
intermediateMix[sampleIndex][2] += s32(source.currentFrame[sampleIndex][0] * gains[2]);
intermediateMix[sampleIndex][3] += s32(source.currentFrame[sampleIndex][1] * gains[3]);
}
DSP::MixIntoQuad::mix(intermediateMix, source.currentFrame, gains.data());
}
}
}