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Added free filter envelope random transform

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This commit is contained in:
xenakios
2018-03-03 17:22:23 +02:00
parent 536b1ccaf1
commit c391a2c0af
6 changed files with 51 additions and 5 deletions
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30
Source/jcdp_envelope.h
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@ -20,6 +20,7 @@ along with CDP front-end. If not, see <http://www.gnu.org/licenses/>.
#include <vector>
#include <algorithm>
#include <random>
#include "../JuceLibraryCode/JuceHeader.h"
#include "PS_Source/globals.h"
@ -193,7 +194,10 @@ inline double interpolate_foo(double atime,double t0, double v0, double t1, doub
class breakpoint_envelope
{
public:
breakpoint_envelope() : m_name("Untitled") {}
breakpoint_envelope() : m_name("Untitled")
{
m_randbuf.resize(1024);
}
breakpoint_envelope(String name, double minv=0.0, double maxv=1.0)
: m_minvalue(minv), m_maxvalue(maxv), m_name(name)
{
@ -202,6 +206,7 @@ public:
m_defvalue=0.5;
m_updateopinprogress=false;
m_value_grid={0.0,0.25,0.5,0.75,1.0};
m_randbuf.resize(1024);
}
@ -567,6 +572,9 @@ 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_transform_y_random_amount = 0.2;
double m_transform_y_random_rate = 2.0;
int m_transform_y_random_bands = 32;
bool m_transform_wrap_x = false;
double m_min_pt_value = 0.0;
double m_max_pt_value = 0.0;
@ -589,12 +597,19 @@ public:
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);
double tilted = shifted+tiltline;
return jlimit(0.0,1.0,tilted);
if (m_transform_y_random_amount > 0.0)
{
int tableindex = jlimit<int>(0,m_randbuf.size()-1, floor(x * (m_transform_y_random_bands)));
double randamt = jmap(m_randbuf[tableindex], 0.0, 1.0, -m_transform_y_random_amount, m_transform_y_random_amount);
tilted += randamt;
}
return jlimit(0.0,1.0,tilted);
}
bool isTransformed() const
{
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;
|| m_transform_y_scale!=1.0 || m_transform_y_sinus!=0.0 || m_transform_y_tilt!=0.0 || m_transform_y_random_amount!=0.0;
}
void updateMinMaxValues()
{
@ -608,6 +623,13 @@ public:
m_minvalue = minv;
m_maxvalue = maxv;
}
void updateRandomState()
{
//Logger::writeToLog("updating envelope random state");
std::uniform_real_distribution<double> dist(0.0,1.0);
for (int i = 0; i < m_transform_y_random_bands+1; ++i)
m_randbuf[i] = dist(m_randgen);
}
private:
nodes_t m_nodes;
double m_playoffset=0.0;
@ -625,6 +647,8 @@ private:
nodes_t m_old_nodes;
nodes_t m_repeater_nodes;
grid_t m_value_grid;
std::mt19937 m_randgen;
std::vector<double> m_randbuf;
JUCE_LEAK_DETECTOR(breakpoint_envelope)
};