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author | Chris Johnson <jinx6568@sover.net> | 2018-09-02 22:35:13 -0400 |
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committer | Chris Johnson <jinx6568@sover.net> | 2018-09-02 22:35:13 -0400 |
commit | b4f55328448d087a68e6f658638fb3d38d86be12 (patch) | |
tree | 217a6d4c9ecc1c34e15e3f9e3774cc9858e39bfa /plugins/LinuxVST/src/NodeDither | |
parent | dea49efc0e05cdd55c00ce701aecef2bd742fc8c (diff) | |
download | airwindows-lv2-port-b4f55328448d087a68e6f658638fb3d38d86be12.tar.gz airwindows-lv2-port-b4f55328448d087a68e6f658638fb3d38d86be12.tar.bz2 airwindows-lv2-port-b4f55328448d087a68e6f658638fb3d38d86be12.zip |
Ditherbox… and individual dithers
Diffstat (limited to 'plugins/LinuxVST/src/NodeDither')
-rwxr-xr-x | plugins/LinuxVST/src/NodeDither/.vs/Console4Channel64/v14/.suo | bin | 0 -> 32768 bytes | |||
-rwxr-xr-x | plugins/LinuxVST/src/NodeDither/.vs/VSTProject/v14/.suo | bin | 0 -> 23040 bytes | |||
-rwxr-xr-x | plugins/LinuxVST/src/NodeDither/NodeDither.cpp | 131 | ||||
-rwxr-xr-x | plugins/LinuxVST/src/NodeDither/NodeDither.h | 65 | ||||
-rwxr-xr-x | plugins/LinuxVST/src/NodeDither/NodeDitherProc.cpp | 228 |
5 files changed, 424 insertions, 0 deletions
diff --git a/plugins/LinuxVST/src/NodeDither/.vs/Console4Channel64/v14/.suo b/plugins/LinuxVST/src/NodeDither/.vs/Console4Channel64/v14/.suo Binary files differnew file mode 100755 index 0000000..777b846 --- /dev/null +++ b/plugins/LinuxVST/src/NodeDither/.vs/Console4Channel64/v14/.suo diff --git a/plugins/LinuxVST/src/NodeDither/.vs/VSTProject/v14/.suo b/plugins/LinuxVST/src/NodeDither/.vs/VSTProject/v14/.suo Binary files differnew file mode 100755 index 0000000..97158ed --- /dev/null +++ b/plugins/LinuxVST/src/NodeDither/.vs/VSTProject/v14/.suo diff --git a/plugins/LinuxVST/src/NodeDither/NodeDither.cpp b/plugins/LinuxVST/src/NodeDither/NodeDither.cpp new file mode 100755 index 0000000..663b608 --- /dev/null +++ b/plugins/LinuxVST/src/NodeDither/NodeDither.cpp @@ -0,0 +1,131 @@ +/* ======================================== + * NodeDither - NodeDither.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __NodeDither_H +#include "NodeDither.h" +#endif + +AudioEffect* createEffectInstance(audioMasterCallback audioMaster) {return new NodeDither(audioMaster);} + +NodeDither::NodeDither(audioMasterCallback audioMaster) : + AudioEffectX(audioMaster, kNumPrograms, kNumParameters) +{ + A = 0.04; + B = 0.0; + for(int count = 0; count < 4999; count++) {dL[count] = 0; dR[count] = 0;} + gcount = 0; + //this is reset: values being initialized only once. Startup values, whatever they are. + + _canDo.insert("plugAsChannelInsert"); // plug-in can be used as a channel insert effect. + _canDo.insert("plugAsSend"); // plug-in can be used as a send effect. + _canDo.insert("x2in2out"); + setNumInputs(kNumInputs); + setNumOutputs(kNumOutputs); + setUniqueID(kUniqueId); + canProcessReplacing(); // supports output replacing + canDoubleReplacing(); // supports double precision processing + programsAreChunks(true); + vst_strncpy (_programName, "Default", kVstMaxProgNameLen); // default program name +} + +NodeDither::~NodeDither() {} +VstInt32 NodeDither::getVendorVersion () {return 1000;} +void NodeDither::setProgramName(char *name) {vst_strncpy (_programName, name, kVstMaxProgNameLen);} +void NodeDither::getProgramName(char *name) {vst_strncpy (name, _programName, kVstMaxProgNameLen);} +//airwindows likes to ignore this stuff. Make your own programs, and make a different plugin rather than +//trying to do versioning and preventing people from using older versions. Maybe they like the old one! + +static float pinParameter(float data) +{ + if (data < 0.0f) return 0.0f; + if (data > 1.0f) return 1.0f; + return data; +} + +VstInt32 NodeDither::getChunk (void** data, bool isPreset) +{ + float *chunkData = (float *)calloc(kNumParameters, sizeof(float)); + chunkData[0] = A; + chunkData[1] = B; + /* Note: The way this is set up, it will break if you manage to save settings on an Intel + machine and load them on a PPC Mac. However, it's fine if you stick to the machine you + started with. */ + + *data = chunkData; + return kNumParameters * sizeof(float); +} + +VstInt32 NodeDither::setChunk (void* data, VstInt32 byteSize, bool isPreset) +{ + float *chunkData = (float *)data; + A = pinParameter(chunkData[0]); + B = pinParameter(chunkData[1]); + /* We're ignoring byteSize as we found it to be a filthy liar */ + + /* calculate any other fields you need here - you could copy in + code from setParameter() here. */ + return 0; +} + +void NodeDither::setParameter(VstInt32 index, float value) { + switch (index) { + case kParamA: A = value; break; + case kParamB: B = value; break; + default: throw; // unknown parameter, shouldn't happen! + } +} + +float NodeDither::getParameter(VstInt32 index) { + switch (index) { + case kParamA: return A; break; + case kParamB: return B; break; + default: break; // unknown parameter, shouldn't happen! + } return 0.0; //we only need to update the relevant name, this is simple to manage +} + +void NodeDither::getParameterName(VstInt32 index, char *text) { + switch (index) { + case kParamA: vst_strncpy (text, "Node", kVstMaxParamStrLen); break; + case kParamB: vst_strncpy (text, "Phase", kVstMaxParamStrLen); break; + default: break; // unknown parameter, shouldn't happen! + } //this is our labels for displaying in the VST host +} + +void NodeDither::getParameterDisplay(VstInt32 index, char *text) { + switch (index) { + case kParamA: int2string ((VstInt32) floor(A * 100), text, kVstMaxParamStrLen); break; + case kParamB: switch((VstInt32)( B * 1.999 )) //0 to almost edge of # of params + {case 0: vst_strncpy (text, "Out", kVstMaxParamStrLen); break; + case 1: vst_strncpy (text, "In", kVstMaxParamStrLen); break; + default: break; // unknown parameter, shouldn't happen! + } break; //completed D 'popup' parameter, exit + default: break; // unknown parameter, shouldn't happen! + } //this displays the values and handles 'popups' where it's discrete choices +} + +void NodeDither::getParameterLabel(VstInt32 index, char *text) { + switch (index) { + case kParamA: vst_strncpy (text, "samples", kVstMaxParamStrLen); break; + case kParamB: vst_strncpy (text, " ", kVstMaxParamStrLen); break; //the percent + default: break; // unknown parameter, shouldn't happen! + } +} + +VstInt32 NodeDither::canDo(char *text) +{ return (_canDo.find(text) == _canDo.end()) ? -1: 1; } // 1 = yes, -1 = no, 0 = don't know + +bool NodeDither::getEffectName(char* name) { + vst_strncpy(name, "NodeDither", kVstMaxProductStrLen); return true; +} + +VstPlugCategory NodeDither::getPlugCategory() {return kPlugCategEffect;} + +bool NodeDither::getProductString(char* text) { + vst_strncpy (text, "airwindows NodeDither", kVstMaxProductStrLen); return true; +} + +bool NodeDither::getVendorString(char* text) { + vst_strncpy (text, "airwindows", kVstMaxVendorStrLen); return true; +} diff --git a/plugins/LinuxVST/src/NodeDither/NodeDither.h b/plugins/LinuxVST/src/NodeDither/NodeDither.h new file mode 100755 index 0000000..240a8d9 --- /dev/null +++ b/plugins/LinuxVST/src/NodeDither/NodeDither.h @@ -0,0 +1,65 @@ +/* ======================================== + * NodeDither - NodeDither.h + * Created 8/12/11 by SPIAdmin + * Copyright (c) 2011 __MyCompanyName__, All rights reserved + * ======================================== */ + +#ifndef __NodeDither_H +#define __NodeDither_H + +#ifndef __audioeffect__ +#include "audioeffectx.h" +#endif + +#include <set> +#include <string> +#include <math.h> + +enum { + kParamA = 0, + kParamB = 1, + kNumParameters = 2 +}; // + +const int kNumPrograms = 0; +const int kNumInputs = 2; +const int kNumOutputs = 2; +const unsigned long kUniqueId = 'node'; //Change this to what the AU identity is! + +class NodeDither : + public AudioEffectX +{ +public: + NodeDither(audioMasterCallback audioMaster); + ~NodeDither(); + virtual bool getEffectName(char* name); // The plug-in name + virtual VstPlugCategory getPlugCategory(); // The general category for the plug-in + virtual bool getProductString(char* text); // This is a unique plug-in string provided by Steinberg + virtual bool getVendorString(char* text); // Vendor info + virtual VstInt32 getVendorVersion(); // Version number + virtual void processReplacing (float** inputs, float** outputs, VstInt32 sampleFrames); + virtual void processDoubleReplacing (double** inputs, double** outputs, VstInt32 sampleFrames); + virtual void getProgramName(char *name); // read the name from the host + virtual void setProgramName(char *name); // changes the name of the preset displayed in the host + virtual VstInt32 getChunk (void** data, bool isPreset); + virtual VstInt32 setChunk (void* data, VstInt32 byteSize, bool isPreset); + virtual float getParameter(VstInt32 index); // get the parameter value at the specified index + virtual void setParameter(VstInt32 index, float value); // set the parameter at index to value + virtual void getParameterLabel(VstInt32 index, char *text); // label for the parameter (eg dB) + virtual void getParameterName(VstInt32 index, char *text); // name of the parameter + virtual void getParameterDisplay(VstInt32 index, char *text); // text description of the current value + virtual VstInt32 canDo(char *text); +private: + char _programName[kVstMaxProgNameLen + 1]; + std::set< std::string > _canDo; + + double dL[5000]; + double dR[5000]; + int gcount; + //default stuff + + float A; + float B; +}; + +#endif diff --git a/plugins/LinuxVST/src/NodeDither/NodeDitherProc.cpp b/plugins/LinuxVST/src/NodeDither/NodeDitherProc.cpp new file mode 100755 index 0000000..3d60464 --- /dev/null +++ b/plugins/LinuxVST/src/NodeDither/NodeDitherProc.cpp @@ -0,0 +1,228 @@ +/* ======================================== + * NodeDither - NodeDither.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __NodeDither_H +#include "NodeDither.h" +#endif + +void NodeDither::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) +{ + float* in1 = inputs[0]; + float* in2 = inputs[1]; + float* out1 = outputs[0]; + float* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + + int offsetA = (int)((A*100) * overallscale); + if (offsetA < 1) offsetA = 1; + if (offsetA > 2440) offsetA = 2440; + + int phase = floor(B*1.999); + //0 default is out of phase, 1 is in phase + + long double inputSampleL; + long double inputSampleR; + double currentDitherL; + double currentDitherR; + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + static int noisesource = 0; + //this declares a variable before anything else is compiled. It won't keep assigning + //it to 0 for every sample, it's as if the declaration doesn't exist in this context, + //but it lets me add this denormalization fix in a single place rather than updating + //it in three different locations. The variable isn't thread-safe but this is only + //a random seed and we can share it with whatever. + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL = applyresidue; + } + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + static int noisesource = 0; + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR = applyresidue; + //this denormalization routine produces a white noise at -300 dB which the noise + //shaping will interact with to produce a bipolar output, but the noise is actually + //all positive. That should stop any variables from going denormal, and the routine + //only kicks in if digital black is input. As a final touch, if you save to 24-bit + //the silence will return to being digital black again. + } + + inputSampleL *= 8388608.0; + inputSampleR *= 8388608.0; + //0-1 is now one bit, now we dither + + if (gcount < 0 || gcount > 2450) {gcount = 2450;} + + currentDitherL = (rand()/(double)RAND_MAX); + inputSampleL += currentDitherL; + + currentDitherR = (rand()/(double)RAND_MAX); + inputSampleR += currentDitherR; + + if (phase == 1) { + inputSampleL -= 1.0; + inputSampleL += dL[gcount+offsetA]; + inputSampleR -= 1.0; + inputSampleR += dR[gcount+offsetA]; + } else { + inputSampleL -= dL[gcount+offsetA]; + inputSampleR -= dR[gcount+offsetA]; + } + //in phase means adding, otherwise we subtract + + + inputSampleL = floor(inputSampleL); + inputSampleR = floor(inputSampleR); + dL[gcount+2450] = dL[gcount] = currentDitherL; + dR[gcount+2450] = dR[gcount] = currentDitherR; + + gcount--; + + inputSampleL /= 8388608.0; + inputSampleR /= 8388608.0; + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +} + +void NodeDither::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) +{ + double* in1 = inputs[0]; + double* in2 = inputs[1]; + double* out1 = outputs[0]; + double* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + + int offsetA = (int)((A*100) * overallscale); + if (offsetA < 1) offsetA = 1; + if (offsetA > 2440) offsetA = 2440; + + int phase = floor(B*1.999); + //0 default is out of phase, 1 is in phase + + long double inputSampleL; + long double inputSampleR; + double currentDitherL; + double currentDitherR; + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + static int noisesource = 0; + //this declares a variable before anything else is compiled. It won't keep assigning + //it to 0 for every sample, it's as if the declaration doesn't exist in this context, + //but it lets me add this denormalization fix in a single place rather than updating + //it in three different locations. The variable isn't thread-safe but this is only + //a random seed and we can share it with whatever. + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL = applyresidue; + } + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + static int noisesource = 0; + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR = applyresidue; + //this denormalization routine produces a white noise at -300 dB which the noise + //shaping will interact with to produce a bipolar output, but the noise is actually + //all positive. That should stop any variables from going denormal, and the routine + //only kicks in if digital black is input. As a final touch, if you save to 24-bit + //the silence will return to being digital black again. + } + + inputSampleL *= 8388608.0; + inputSampleR *= 8388608.0; + //0-1 is now one bit, now we dither + + if (gcount < 0 || gcount > 2450) {gcount = 2450;} + + currentDitherL = (rand()/(double)RAND_MAX); + inputSampleL += currentDitherL; + + currentDitherR = (rand()/(double)RAND_MAX); + inputSampleR += currentDitherR; + + if (phase == 1) { + inputSampleL -= 1.0; + inputSampleL += dL[gcount+offsetA]; + inputSampleR -= 1.0; + inputSampleR += dR[gcount+offsetA]; + } else { + inputSampleL -= dL[gcount+offsetA]; + inputSampleR -= dR[gcount+offsetA]; + } + //in phase means adding, otherwise we subtract + + + inputSampleL = floor(inputSampleL); + inputSampleR = floor(inputSampleR); + dL[gcount+2450] = dL[gcount] = currentDitherL; + dR[gcount+2450] = dR[gcount] = currentDitherR; + + gcount--; + + inputSampleL /= 8388608.0; + inputSampleR /= 8388608.0; + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +}
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