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Added the pitch envelope on data generators

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This commit is contained in:
Paul Ferrand 2019-12-13 11:10:50 +01:00
parent cc04f21a05
commit 862dfca73e
1 changed files with 24 additions and 5 deletions
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29
src/sfizz/Voice.cpp
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@ -96,7 +96,7 @@ void sfz::Voice::startVoice(Region* region, int delay, int channel, int number,
widthEnvelope.reset(width);
pitchBendEnvelope.setFunction([region](float pitchValue){
const auto normalizedBend = normalizeBend(pitchValue);
const auto normalizedBend = -1 * normalizeBend(pitchValue);
const auto bendInCents = normalizedBend > 0 ? normalizedBend * region->bendUp : normalizedBend * region->bendDown;
return centsFactor(bendInCents);
});
@ -199,7 +199,6 @@ void sfz::Voice::registerPitchWheel(int delay, int channel, int pitch) noexcept
return;
pitchBendEnvelope.registerEvent(delay, pitch);
// TODO
}
void sfz::Voice::registerAftertouch(int delay [[maybe_unused]], int channel [[maybe_unused]], uint8_t aftertouch [[maybe_unused]]) noexcept
@ -367,10 +366,17 @@ void sfz::Voice::fillWithData(AudioSpan<float> buffer) noexcept
auto indices = indexSpan.first(buffer.getNumFrames());
auto jumps = tempSpan1.first(buffer.getNumFrames());
auto bends = tempSpan2.first(buffer.getNumFrames());
auto leftCoeffs = tempSpan1.first(buffer.getNumFrames());
auto rightCoeffs = tempSpan2.first(buffer.getNumFrames());
fill<float>(jumps, pitchRatio * speedRatio);
if (region->bendStep > 1)
pitchBendEnvelope.getQuantizedBlock(bends, region->bendStep);
else
pitchBendEnvelope.getBlock(bends);
applyGain<float>(bends, jumps);
jumps[0] += floatPositionOffset;
cumsum<float>(jumps, jumps);
sfzInterpolationCast<float>(jumps, indices, leftCoeffs, rightCoeffs);
@ -446,10 +452,23 @@ void sfz::Voice::fillWithGenerator(AudioSpan<float> buffer) noexcept
if (buffer.getNumFrames() == 0)
return;
float step = baseFrequency * twoPi<float> / sampleRate;
phase = linearRamp<float>(tempSpan1, phase, step);
auto jumps = tempSpan1.first(buffer.getNumFrames());
auto bends = tempSpan2.first(buffer.getNumFrames());
auto phases = tempSpan2.first(buffer.getNumFrames());
sin<float>(tempSpan1.first(buffer.getNumFrames()), buffer.getSpan(0));
const float step = baseFrequency * twoPi<float> / sampleRate;
fill<float>(jumps, step);
if (region->bendStep > 1)
pitchBendEnvelope.getQuantizedBlock(bends, region->bendStep);
else
pitchBendEnvelope.getBlock(bends);
applyGain<float>(bends, jumps);
jumps[0] += phase;
cumsum<float>(jumps, phases);
phase = phases.back();
sin<float>(phases, buffer.getSpan(0));
copy<float>(buffer.getSpan(0), buffer.getSpan(1));
// Wrap the phase so we don't loose too much precision on longer notes