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//-------------------------------------------------------------------------------------------------------
// VST Plug-Ins SDK
// Version 2.4 $Date: 2006/11/13 09:08:27 $
//
// Category : VST 2.x SDK Samples
// Filename : surrounddelay.cpp
// Created by : Steinberg Media Technologies
// Description : Simple Surround Delay plugin with Editor using VSTGUI
//
// � 2006, Steinberg Media Technologies, All Rights Reserved
//-------------------------------------------------------------------------------------------------------
#ifndef __surrounddelay__
#include "surrounddelay.h"
#endif
#ifndef __sdeditor__
#include "editor/sdeditor.h"
#endif
#include <string.h>
#include <stdio.h>
//-------------------------------------------------------------------------------------------------------
AudioEffect* createEffectInstance (audioMasterCallback audioMaster)
{
return new SurroundDelay (audioMaster);
}
//-----------------------------------------------------------------------------
SurroundDelay::SurroundDelay (audioMasterCallback audioMaster)
: ADelay (audioMaster)
, plugInput (0)
, plugOutput (0)
{
// The first buffer is allocated in ADelay's constructor
for (int i = 1; i < MAX_CHANNELS; i++)
{
sBuffers[i] = new float[size];
}
setNumInputs (MAX_CHANNELS);
setNumOutputs (MAX_CHANNELS);
// We initialize the arrangements to default values.
// Nevertheless, the host should modify them via
// appropriate calls to setSpeakerArrangement.
allocateArrangement (&plugInput, MAX_CHANNELS);
plugInput->type = kSpeakerArr51;
allocateArrangement (&plugOutput, MAX_CHANNELS);
plugOutput->type = kSpeakerArr51;
setUniqueID ('SDlE'); // this should be unique, use the Steinberg web page for plugin Id registration
// create the editor
editor = new SDEditor (this);
resume ();
}
//-----------------------------------------------------------------------------
SurroundDelay::~SurroundDelay ()
{
sBuffers[0] = 0;
// We let ~ADelay delete "buffer"...
for (int i = 1; i < MAX_CHANNELS; i++)
{
if (sBuffers[i])
{
delete[] sBuffers[i];
}
sBuffers[i] = 0;
}
deallocateArrangement (&plugInput);
deallocateArrangement (&plugOutput);
}
//------------------------------------------------------------------------
void SurroundDelay::resume ()
{
memset (buffer, 0, size * sizeof (float));
sBuffers[0] = buffer;
for (int i = 1; i < MAX_CHANNELS; i++)
{
memset (sBuffers[i], 0, size * sizeof (float));
}
}
//------------------------------------------------------------------------
bool SurroundDelay::getSpeakerArrangement (VstSpeakerArrangement** pluginInput, VstSpeakerArrangement** pluginOutput)
{
*pluginInput = plugInput;
*pluginOutput = plugOutput;
return true;
}
//------------------------------------------------------------------------
bool SurroundDelay::setSpeakerArrangement (VstSpeakerArrangement* pluginInput,
VstSpeakerArrangement* pluginOutput)
{
if (!pluginOutput || !pluginInput)
return false;
bool result = true;
// This plug-in can act on any speaker arrangement,
// provided that there are the same number of inputs/outputs.
if (pluginInput->numChannels > MAX_CHANNELS)
{
// This plug-in can't have so many channels. So we answer
// false, and we set the input arrangement with the maximum
// number of channels possible
result = false;
allocateArrangement (&plugInput, MAX_CHANNELS);
plugInput->type = kSpeakerArr51;
}
else
{
matchArrangement (&plugInput, pluginInput);
}
if (pluginOutput->numChannels != plugInput->numChannels)
{
// This plug-in only deals with symetric IO configurations...
result = false;
matchArrangement (&plugOutput, plugInput);
}
else
{
matchArrangement (&plugOutput, pluginOutput);
}
return result;
}
//------------------------------------------------------------------------
void SurroundDelay::processReplacing (float** inputs, float** outputs, VstInt32 sampleframes)
{
float* inputs2[1];
float* outputs2[2];
outputs2[1] = NULL;
long cursorTemp = cursor;
for (int i = 0; i < plugInput->numChannels; i++)
{
cursor = cursorTemp;
buffer = sBuffers[i];
inputs2[0] = inputs[i];
outputs2[0] = outputs[i];
ADelay::processReplacing (inputs2, outputs2, sampleframes);
}
buffer = sBuffers[0];
}
//-----------------------------------------------------------------------------
void SurroundDelay::setParameter (VstInt32 index, float value)
{
ADelay::setParameter (index, value);
if (editor)
((AEffGUIEditor*)editor)->setParameter (index, value);
}
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