allanger/paulxstretch
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Do envelope y scaling based on envelope point min and max values

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This commit is contained in:
xenakios
2018-02-28 16:34:16 +02:00
parent b2944afbab
commit 310f549643
2 changed files with 18 additions and 2 deletions
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1
Source/PluginEditor.cpp
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@@ -321,6 +321,7 @@ void PaulstretchpluginAudioProcessorEditor::timerCallback(int id)
}
if (id == 3)
{
processor.m_free_filter_envelope->updateMinMaxValues();
m_free_filter_component.repaint();
}
}

19
Source/jcdp_envelope.h
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@@ -565,6 +565,8 @@ public:
double m_transform_y_sinus = 0.0;
double m_transform_y_sinus_freq = 8.0;
double m_transform_y_tilt = 0.0;
double m_min_pt_value = 0.0;
double m_max_pt_value = 0.0;
inline double getTransformedValue(double x)
{
if (isTransformed() == false)
@@ -573,8 +575,9 @@ public:
if (temp < 0.0)
temp += 1.0;
double v = GetInterpolatedNodeValue(temp);
double diff = 0.5 - v;
double scaled = 0.5 - m_transform_y_scale * diff;
double center_v = m_minvalue + (m_maxvalue - m_minvalue) / 2.0;
double diff = center_v - v;
double scaled = center_v - m_transform_y_scale * diff;
double shifted = scaled + m_transform_y_shift + m_transform_y_sinus*
sin(2*3.141592653*(x-m_transform_x_shift)*m_transform_y_sinus_freq);
double tiltline = m_transform_y_tilt-(2.0*m_transform_y_tilt*x);
@@ -586,6 +589,18 @@ public:
return m_transform_x_shift != 0.0 || m_transform_y_shift != 0.0
|| m_transform_y_scale!=1.0 || m_transform_y_sinus!=0.0 || m_transform_y_tilt!=0.0;
}
void updateMinMaxValues()
{
double minv = 1.0;
double maxv = 0.0;
for (auto& e : m_nodes)
{
minv = std::min(minv, e.Value);
maxv = std::max(maxv, e.Value);
}
m_minvalue = minv;
m_maxvalue = maxv;
}
private:
nodes_t m_nodes;
double m_playoffset=0.0;