diff options
Diffstat (limited to 'plugins/MacVST/Gringer/source/GringerProc.cpp')
| -rwxr-xr-x | plugins/MacVST/Gringer/source/GringerProc.cpp | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/plugins/MacVST/Gringer/source/GringerProc.cpp b/plugins/MacVST/Gringer/source/GringerProc.cpp new file mode 100755 index 0000000..2a40f38 --- /dev/null +++ b/plugins/MacVST/Gringer/source/GringerProc.cpp @@ -0,0 +1,238 @@ +/* ======================================== + * Gringer - Gringer.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __Gringer_H +#include "Gringer.h" +#endif + +void Gringer::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(); + + inbandL[0] = 0.025/overallscale; + outbandL[0] = 0.025/overallscale; + inbandL[1] = 0.001; + outbandL[1] = 0.001; + inbandR[0] = 0.025/overallscale; + outbandR[0] = 0.025/overallscale; + inbandR[1] = 0.001; + outbandR[1] = 0.001; + //hardwired for wide bandpass around the rectification + + double K = tan(M_PI * inbandL[0]); + double norm = 1.0 / (1.0 + K / inbandL[1] + K * K); + inbandL[2] = K / inbandL[1] * norm; + inbandL[4] = -inbandL[2]; + inbandL[5] = 2.0 * (K * K - 1.0) * norm; + inbandL[6] = (1.0 - K / inbandL[1] + K * K) * norm; + + K = tan(M_PI * outbandL[0]); + norm = 1.0 / (1.0 + K / outbandL[1] + K * K); + outbandL[2] = K / outbandL[1] * norm; + outbandL[4] = -outbandL[2]; + outbandL[5] = 2.0 * (K * K - 1.0) * norm; + outbandL[6] = (1.0 - K / outbandL[1] + K * K) * norm; + + K = tan(M_PI * inbandR[0]); + norm = 1.0 / (1.0 + K / inbandR[1] + K * K); + inbandR[2] = K / inbandR[1] * norm; + inbandR[4] = -inbandR[2]; + inbandR[5] = 2.0 * (K * K - 1.0) * norm; + inbandR[6] = (1.0 - K / inbandR[1] + K * K) * norm; + + K = tan(M_PI * outbandR[0]); + norm = 1.0 / (1.0 + K / outbandR[1] + K * K); + outbandR[2] = K / outbandR[1] * norm; + outbandR[4] = -outbandR[2]; + outbandR[5] = 2.0 * (K * K - 1.0) * norm; + outbandR[6] = (1.0 - K / outbandR[1] + K * K) * norm; + + while (--sampleFrames >= 0) + { + long double inputSampleL = *in1; + long double inputSampleR = *in2; + if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpd * 1.18e-37; + if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpd * 1.18e-37; + + inputSampleL = sin(inputSampleL); + inputSampleR = sin(inputSampleR); + //encode Console5: good cleanness + + long double tempSample = (inputSampleL * inbandL[2]) + inbandL[7]; + inbandL[7] = -(tempSample * inbandL[5]) + inbandL[8]; + inbandL[8] = (inputSampleL * inbandL[4]) - (tempSample * inbandL[6]); + inputSampleL = fabs(tempSample); + //this is all you gotta do to make the Green Ringer fullwave rectification effect + //the rest is about making it work within a DAW context w. filtering and such + + tempSample = (inputSampleR * inbandR[2]) + inbandR[7]; + inbandR[7] = -(tempSample * inbandR[5]) + inbandR[8]; + inbandR[8] = (inputSampleR * inbandR[4]) - (tempSample * inbandR[6]); + inputSampleR = fabs(tempSample); + //this is all you gotta do to make the Green Ringer fullwave rectification effect + //the rest is about making it work within a DAW context w. filtering and such + + tempSample = (inputSampleL * outbandL[2]) + outbandL[7]; + outbandL[7] = -(tempSample * outbandL[5]) + outbandL[8]; + outbandL[8] = (inputSampleL * outbandL[4]) - (tempSample * outbandL[6]); + inputSampleL = tempSample; + + tempSample = (inputSampleR * outbandR[2]) + outbandR[7]; + outbandR[7] = -(tempSample * outbandR[5]) + outbandR[8]; + outbandR[8] = (inputSampleR * outbandR[4]) - (tempSample * outbandR[6]); + inputSampleR = tempSample; + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + //amplitude aspect + + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleR = asin(inputSampleR); + //amplitude aspect + + //begin 32 bit stereo floating point dither + int expon; frexpf((float)inputSampleL, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); + frexpf((float)inputSampleR, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleR += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); + //end 32 bit stereo floating point dither + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +} + +void Gringer::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(); + + inbandL[0] = 0.025/overallscale; + outbandL[0] = 0.025/overallscale; + inbandL[1] = 0.001; + outbandL[1] = 0.001; + inbandR[0] = 0.025/overallscale; + outbandR[0] = 0.025/overallscale; + inbandR[1] = 0.001; + outbandR[1] = 0.001; + //hardwired for wide bandpass around the rectification + + double K = tan(M_PI * inbandL[0]); + double norm = 1.0 / (1.0 + K / inbandL[1] + K * K); + inbandL[2] = K / inbandL[1] * norm; + inbandL[4] = -inbandL[2]; + inbandL[5] = 2.0 * (K * K - 1.0) * norm; + inbandL[6] = (1.0 - K / inbandL[1] + K * K) * norm; + + K = tan(M_PI * outbandL[0]); + norm = 1.0 / (1.0 + K / outbandL[1] + K * K); + outbandL[2] = K / outbandL[1] * norm; + outbandL[4] = -outbandL[2]; + outbandL[5] = 2.0 * (K * K - 1.0) * norm; + outbandL[6] = (1.0 - K / outbandL[1] + K * K) * norm; + + K = tan(M_PI * inbandR[0]); + norm = 1.0 / (1.0 + K / inbandR[1] + K * K); + inbandR[2] = K / inbandR[1] * norm; + inbandR[4] = -inbandR[2]; + inbandR[5] = 2.0 * (K * K - 1.0) * norm; + inbandR[6] = (1.0 - K / inbandR[1] + K * K) * norm; + + K = tan(M_PI * outbandR[0]); + norm = 1.0 / (1.0 + K / outbandR[1] + K * K); + outbandR[2] = K / outbandR[1] * norm; + outbandR[4] = -outbandR[2]; + outbandR[5] = 2.0 * (K * K - 1.0) * norm; + outbandR[6] = (1.0 - K / outbandR[1] + K * K) * norm; + + while (--sampleFrames >= 0) + { + long double inputSampleL = *in1; + long double inputSampleR = *in2; + if (fabs(inputSampleL)<1.18e-43) inputSampleL = fpd * 1.18e-43; + if (fabs(inputSampleR)<1.18e-43) inputSampleR = fpd * 1.18e-43; + + inputSampleL = sin(inputSampleL); + inputSampleR = sin(inputSampleR); + //encode Console5: good cleanness + + long double tempSample = (inputSampleL * inbandL[2]) + inbandL[7]; + inbandL[7] = -(tempSample * inbandL[5]) + inbandL[8]; + inbandL[8] = (inputSampleL * inbandL[4]) - (tempSample * inbandL[6]); + inputSampleL = fabs(tempSample); + //this is all you gotta do to make the Green Ringer fullwave rectification effect + //the rest is about making it work within a DAW context w. filtering and such + + tempSample = (inputSampleR * inbandR[2]) + inbandR[7]; + inbandR[7] = -(tempSample * inbandR[5]) + inbandR[8]; + inbandR[8] = (inputSampleR * inbandR[4]) - (tempSample * inbandR[6]); + inputSampleR = fabs(tempSample); + //this is all you gotta do to make the Green Ringer fullwave rectification effect + //the rest is about making it work within a DAW context w. filtering and such + + tempSample = (inputSampleL * outbandL[2]) + outbandL[7]; + outbandL[7] = -(tempSample * outbandL[5]) + outbandL[8]; + outbandL[8] = (inputSampleL * outbandL[4]) - (tempSample * outbandL[6]); + inputSampleL = tempSample; + + tempSample = (inputSampleR * outbandR[2]) + outbandR[7]; + outbandR[7] = -(tempSample * outbandR[5]) + outbandR[8]; + outbandR[8] = (inputSampleR * outbandR[4]) - (tempSample * outbandR[6]); + inputSampleR = tempSample; + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + //amplitude aspect + + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleR = asin(inputSampleR); + //amplitude aspect + + //begin 64 bit stereo floating point dither + int expon; frexp((double)inputSampleL, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62)); + frexp((double)inputSampleR, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleR += ((double(fpd)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62)); + //end 64 bit stereo floating point dither + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +} |