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Revert and amend the benchmark correction

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This commit is contained in:
Paul Ferrand 2020-05-29 13:39:05 +02:00 • committed by Jean Pierre Cimalando
parent fe730333c6
commit abd951a92b
1 changed files with 3 additions and 4 deletions
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7
benchmarks/BM_interpolators.cpp
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@ -20,13 +20,13 @@ public:
std::uniform_real_distribution<float> dist { -1.0f, 1.0f }; std::uniform_real_distribution<float> dist { -1.0f, 1.0f };
const size_t numFramesIn = state.range(0); const size_t numFramesIn = state.range(0);
inputBuffer = std::vector<float>(numFramesIn + excessFrames); inputBuffer = std::vector<float>(numFramesIn + 2 * sfz::config::excessFileFrames);
// any ratio will do, compute time will be proportional // any ratio will do, compute time will be proportional
static constexpr float ratio = 1.234; static constexpr float ratio = 1.234;
const size_t numFramesOut = static_cast<size_t>(std::ceil(numFramesIn * ratio)); const size_t numFramesOut = static_cast<size_t>(std::ceil(numFramesIn * ratio));
input = absl::MakeSpan(inputBuffer.data(), numFramesIn); input = absl::MakeSpan(inputBuffer).subspan(sfz::config::excessFileFrames, numFramesIn);
output = std::vector<float>(numFramesOut); output = std::vector<float>(numFramesOut);
std::generate(input.begin(), input.end(), [&]() { return dist(gen); }); std::generate(input.begin(), input.end(), [&]() { return dist(gen); });
} }
@ -47,8 +47,7 @@ static void doInterpolation(absl::Span<const float> input, absl::Span<float> out
{ {
const float kOutToIn = static_cast<float>(input.size()) / output.size(); const float kOutToIn = static_cast<float>(input.size()) / output.size();
for (size_t iOut = sfz::config::excessFileFrames; for (size_t iOut = 0; iOut < output.size(); ++iOut) {
iOut < output.size() - sfz::config::excessFileFrames; ++iOut) {
float posIn = iOut * kOutToIn; float posIn = iOut * kOutToIn;
unsigned dec = static_cast<int>(posIn); unsigned dec = static_cast<int>(posIn);
float frac = posIn - dec; float frac = posIn - dec;