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LibAudio+LibDSP: Switch samples to 32-bit float instead of 64-bit float

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This has been overkill from the start, and it has been bugging me for a
long time. With this change, we're probably a bit slower on most
platforms but save huge amounts of space with all in-memory sample
datastructures.
This commit is contained in:
kleines Filmröllchen 2022-05-06 22:14:16 +02:00 • committed by Linus Groh
parent 39c0f31009
commit 19a4b820c4
16 changed files with 329 additions and 329 deletions
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6
Userland/Libraries/LibDSP/MDCT.h
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@ -19,12 +19,12 @@ public:
{
for (size_t n = 0; n < N; n++) {
for (size_t k = 0; k < N / 2; k++) {
m_phi[n][k] = AK::cos(AK::Pi<double> / (2 * N) * (2 * n + 1 + N / 2.0) * (2 * k + 1));
m_phi[n][k] = AK::cos<float>(AK::Pi<float> / (2 * N) * (2 * static_cast<float>(n) + 1 + N / 2.0f) * static_cast<float>(2 * k + 1));
}
}
}
void transform(Span<double const> data, Span<double> output)
void transform(Span<float const> data, Span<float> output)
{
assert(N == 2 * data.size());
assert(N == output.size());
@ -37,7 +37,7 @@ public:
}
private:
Array<Array<double, N / 2>, N> m_phi;
Array<Array<float, N / 2>, N> m_phi;
};
}