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Viewing changes to noatun/noatun/modules/artseffects/extrastereo_impl.cc

  • Committer: Bazaar Package Importer
  • Author(s): Martin Schulze
  • Date: 2003-01-22 15:00:51 UTC
  • Revision ID: james.westby@ubuntu.com-20030122150051-uihwkdoxf15mi1tn
Tags: upstream-2.2.2
Import upstream version 2.2.2

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noatun/noatun/modules/artseffects/extrastereo_impl.cc
 
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#include "artseffects.h"
 
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#include "stdsynthmodule.h"
 
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#include <dynamicrequest.h>
 
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#include <sys/types.h>
 
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#include <sys/stat.h>
 
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#include <fcntl.h>
 
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#include <convert.h>
 
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#include "debug.h"
 
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#include <connect.h>
 
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using namespace Arts;
 
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class ExtraStereo_impl : virtual public ExtraStereo_skel,
 
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                                                 virtual public StdSynthModule
 
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{
 
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        float _intensity;
 
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//      StereoEffectGUI mStereoEffectGUI;
 
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public:
 
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        float intensity() { return _intensity; }
 
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        void intensity(float newValue) {
 
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                _intensity = newValue;
 
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//              cout << " **** INTENSITY = " << newValue << endl;
 
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        }
 
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        ExtraStereo_impl() : _intensity(2.0)
 
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        {
 
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//              mStereoEffectGUI = DynamicCast(server.createObject("Arts::ExtraStereo"));
 
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//              DynamicRequest(mStereoEffectGUI).method("_set_effect").param(*this).invoke();
 
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        }
 
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        void calculateBlock(unsigned long samples)
 
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        {
 
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                unsigned long i;
 
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                for(i = 0; i < samples; i++)
 
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                {
 
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                        float average = (inleft[i] + inright[i]) / 2.0;
 
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                        float outleftnew = average + (inleft[i] - average) * _intensity;
 
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                        if(outleftnew > 1.0) outleft[i] = 1.0;
 
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                        else if(outleftnew < -1.0) outleft[i] = -1.0;
 
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                        else outleft[i] = outleftnew;
 
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                        float outrightnew = average + (inright[i] - average) * _intensity;
 
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                        if(outrightnew > 1.0) outright[i] = 1.0;
 
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                        else if(outrightnew < -1.0) outright[i] = -1.0;
 
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                        else outright[i] = outrightnew;
 
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                }
 
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        }
 
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};
 
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class VoiceRemoval_impl : virtual public VoiceRemoval_skel,
 
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                                                 virtual public StdSynthModule
 
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{
 
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public:
 
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        VoiceRemoval_impl()
 
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        {
 
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        }
 
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        // This is based on the work of Anders Carlsson <anders.carlsson@tordata.se>
 
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        void calculateBlock(unsigned long samples)
 
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        {
 
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                for (unsigned i = 0; i < samples; i++)
 
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                {
 
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                        float outleftnew=inleft[i]-inright[i];
 
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                        float outrightnew=inright[i]-inleft[i];
 
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                        if (inleft[i] < -1.0) outleftnew = -1.0;
 
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                        else if (inleft[i] > 1.0) outleftnew = 1.0;
 
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                        if (inright[i] < -1.0) outrightnew = -1.0;
 
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                        else if (inright[i] > 1.0) outrightnew = 1.0;
 
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                        outleft[i] = outleftnew;
 
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                        outright[i] = outrightnew;
 
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                }
 
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        }
 
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};
 
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class RawWriter_impl : virtual public RawWriter_skel,
 
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                          virtual public StdSynthModule
 
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{
 
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        int mFd;
 
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public:
 
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        RawWriter_impl()
 
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        {
 
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                std::string file=getenv("HOME");
 
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                file.append("/arts-write.raw");
 
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                mFd=::open(file.c_str(), O_RDWR | O_CREAT | O_TRUNC);
 
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        }
 
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        ~RawWriter_impl()
 
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        {
 
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                ::close(mFd);
 
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        }
 
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        // This is based on the work of Anders Carlsson <anders.carlsson@tordata.se>
 
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        void calculateBlock(unsigned long samples)
 
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        {
 
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                for (unsigned i = 0; i < samples; i++)
 
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                {
 
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                        outleft[i]=inleft[i];
 
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                        outright[i]=inright[i];
 
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                }
 
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                unsigned char *buffer=new unsigned char[samples*4];
 
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                convert_stereo_2float_i16le(samples,
 
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                                                                        inleft, inright, buffer);
 
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                ::write(mFd, (const void*)buffer, samples*4);
 
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                delete [] buffer;
 
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        }
 
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};
 
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class ExtraStereoGuiFactory_impl : public ExtraStereoGuiFactory_skel
 
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{
 
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public:
 
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        Widget createGui(Object object)
 
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        {
 
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                arts_return_val_if_fail(!object.isNull(), Arts::Widget::null());
 
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                ExtraStereo e = DynamicCast(object);
 
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                arts_return_val_if_fail(!e.isNull(), Arts::Widget::null());
 
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                Widget panel;
 
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                panel.width(80);
 
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                panel.height(80);
 
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                panel.show();
 
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                Poti intense;
 
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                intense.x(10);
 
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                intense.y(10);
 
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                intense.text("Intensity");
 
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                intense.color("red");
 
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                intense.min(0);
 
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                intense.max(5);
 
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                intense.value(e.intensity());
 
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                intense.parent(panel);
 
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                intense.show();
 
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                connect(intense,"value_changed", e, "intensity");
 
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                panel._addChild(intense,"intensityWidget");
 
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                return panel;
 
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        }
 
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};
 
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REGISTER_IMPLEMENTATION(ExtraStereo_impl);
 
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REGISTER_IMPLEMENTATION(VoiceRemoval_impl);
 
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REGISTER_IMPLEMENTATION(RawWriter_impl);
 
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REGISTER_IMPLEMENTATION(ExtraStereoGuiFactory_impl);
 
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