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Add the non-SIMD linear smoother (for reference)

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Jean Pierre Cimalando 2021-03-18 13:54:23 +01:00
parent 69f27e7441
commit 3f5f4ef2c4
1 changed files with 30 additions and 0 deletions
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30
src/sfizz/Smoothers.cpp
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@ -9,7 +9,10 @@
#include "MathHelpers.h"
#include "SfzHelpers.h"
#include "SIMDHelpers.h"
#include <simde/simde-features.h>
#if SIMDE_NATURAL_VECTOR_SIZE_GE(128)
#include <simde/x86/sse.h>
#endif
namespace sfz {
@ -96,6 +99,7 @@ void LinearSmoother::process(absl::Span<const float> input, absl::Span<float> ou
// int32_t framesToTarget = framesToTarget_;
const int32_t smoothFrames = smoothFrames_;
#if SIMDE_NATURAL_VECTOR_SIZE_GE(128)
for (; i + 15 < count; i += 16) {
const float nextTarget = input[i + 15];
if (target != nextTarget) {
@ -143,6 +147,32 @@ void LinearSmoother::process(absl::Span<const float> input, absl::Span<float> ou
}
//framesToTarget -= 16;
}
#else
for (; i + 15 < count; i += 16) {
const float nextTarget = input[i + 15];
if (target != nextTarget) {
target = nextTarget;
//framesToTarget = (framesToTarget > 0) ? framesToTarget : smoothFrames;
//step = (target - current) / (16 * max(1, framesToTarget));
step = (target - current) / (16 * max(1, smoothFrames));
}
if (target > current) {
for (size_t j = 0; j < 16; ++j)
output[i + j] = current = min(target, current + step);
}
else if (target < current) {
for (size_t j = 0; j < 16; ++j)
output[i + j] = current = max(target, current + step);
}
else {
for (size_t j = 0; j < 16; ++j)
output[i + j] = target;
}
//framesToTarget -= 16;
}
#endif
if (i < count) {
const float nextTarget = input[count - 1];