Can anyone help me, please?
I don't have any problem with my vst-plugin on Windows 7 32bit platform. It's actually very simple, the sdk as it is, just with one dummy parameter controlled by a CAnimKnob (potentiometer), no audio-processing, no event-processing.
VST sdk 2.4 rev2 and vstgui 3.0, Cubase 6.5.5 for testing. For testing I just made a automation-curve for the dummy parameter, the potentiometer moves as expected ...
When I switch to my 64bit Windows everything seems to work fine as well with the 32bit dll at first, but when I reload the song the potentiometer vanishes after a while. After closing the editor window I get a message like "Connection to VST-Bridge lost, reload the previous version of the project to establish the connection. Deactivate non-compatible plugins".
When I compile as 64bit dll it behaves similarly. The plugin works as expected, but when I reload the song Cubase crashes (without the above message of course).
In a fairly old mail from the mailing list Admiral Quality wrote:
http://lists.steinberg.net:8100/Lists/v ... 21686.htmlNot sure if this is related, but I put a critical section around the
body of editor::close() and and editor::setParameter(). This was to
stop a crash in eXT, which was sending editor::setParameter() calls
DURING the call to editor::close() But maybe C5 is doing the same
thing now? Just a guess.
- AQ
I tried this as well, but it didn't help. Nevertheless editor::setparameter() seems to be the problem: When I remove that code it wouldn't crash ...
Maybe the two problems (crash of 32bit dll and the crash of the 64bit dll) aren't related?
Audio
Code: Select all
#include "effect.h"
#include "editor.h"
#include "midi.h"
//-----------------------------------------------------------------------------
AudioEffect* createEffectInstance(audioMasterCallback audioMaster)
{
return new CEffect(audioMaster);
}
//-----------------------------------------------------------------------------
CEffect::CEffect(audioMasterCallback audioMaster)
:AudioEffectX(audioMaster, kNumPrograms, kNumParams)
{
setUniqueID(1234);
isSynth(true);
setNumInputs((VstInt32)2);
setNumOutputs((VstInt32)2);
m_volume = 0.0f;
editor = new CEditor(this);
}
//-----------------------------------------------------------------------------
CEffect::~CEffect()
{
}
//-----------------------------------------------------------------------------
void CEffect::processReplacing(float** inputs, float** outputs, VstInt32 sampleFrames)
{
float* outputLeft = outputs[(VstInt32)0];
float* outputRight = outputs[(VstInt32)1];
// Audio processing
while(--sampleFrames >= (VstInt32)0)
{
*outputLeft++ = 0.0f * m_volume; // (*inputLeft++);
*outputRight++ = 0.0f * m_volume; // (*inputRight++);
}
}
//-------------------------------------------------------------------------------------------------
void CEffect::setParameter(VstInt32 index, float value)
{
switch(index)
{
case kVolume:
m_volume = value;
break;
}
if(editor)
((AEffGUIEditor*)editor)->setParameter(index, value);
}
//-------------------------------------------------------------------------------------------------
float CEffect::getParameter(VstInt32 index)
{
float value = 0;
switch(index)
{
case kVolume:
value = m_volume;
break;
}
return value;
}
//-----------------------------------------------------------------------------
VstInt32 CEffect::canDo(char* text)
{
if(!strcmp(text, "receiveVstEvents"))
return (VstInt32)1;
if(!strcmp(text, "receiveVstMidiEvent"))
return (VstInt32)1;
if(!strcmp(text, "receiveVstTimeInfo"))
return (VstInt32)1;
return (VstInt32)-1; // explicitly can't do; 0 => don't know
}
//-----------------------------------------------------------------------------
bool CEffect::getEffectName(char* name)
{
if(strcpy(name, "VSTTemplateEffectName"))
return true;
return false;
}
//-----------------------------------------------------------------------------
bool CEffect::getProductString(char* text)
{
if(strcpy(text, "VSTTemplateProductString"))
return true;
return false;
}
//-----------------------------------------------------------------------------
bool CEffect::getVendorString(char* text)
{
if(strcpy(text, "Ingisoft"))
return true;
return false;
}
//-----------------------------------------------------------------------------
void CEffect::getParameterName(VstInt32 index, char* text)
{
switch(index)
{
case kVolume:
strcpy(text, "Volume");
break;
}
}
//-----------------------------------------------------------------------------Code: Select all
#include "editor.h"
#include "effect.h"
#include <string>
// resource id's
enum {
// bitmaps (png)
kBackgroundId = 104,
kVolumeId
};
//-------------------------------------------------------------------------------------------------
CEditor::CEditor(AudioEffect* effect)
:AEffGUIEditor(effect)
{
hBackground = new CBitmap(kBackgroundId);
rect.left = (VstInt16)0;
rect.top = (VstInt16)0;
rect.right = (VstInt16)hBackground->getWidth();
rect.bottom = (VstInt16)hBackground->getHeight();
}
//-------------------------------------------------------------------------------------------------
CEditor::~CEditor()
{
if(hBackground)
hBackground->forget();
hBackground = 0;
}
//-------------------------------------------------------------------------------------------------
bool CEditor::open(void* ptr)
{
AEffGUIEditor::open(ptr);
CBitmap* hVolume = new CBitmap(kVolumeId);
// Point
CPoint point(0, 0);
CPoint offset(1, 0);
// Background
CRect size(0, 0, hBackground->getWidth(), hBackground->getHeight());
CFrame* lFrame = new CFrame(size, ptr, this);
lFrame->setBackground(hBackground);
VstInt32 numberOfSubBitmaps = hVolume->getHeight() / hVolume->getWidth();
size(100, 100, 100 + hVolume->getWidth(), 100 + hVolume->getHeight() / numberOfSubBitmaps);
m_volume = new CAnimKnob(size, this, kVolume, hVolume, point);
m_volume->setValue(effect->getParameter(kVolume));
lFrame->addView(m_volume);
hVolume->forget();
frame = lFrame;
return true;
}
//-------------------------------------------------------------------------------------------------
void CEditor::close()
{
}
//-------------------------------------------------------------------------------------------------
void CEditor::idle()
{
if(m_volume->isDirty())
m_volume->redraw();
}
//-------------------------------------------------------------------------------------------------
void CEditor::setParameter(VstInt32 index, float value)
{
switch(index)
{
case kVolume:
m_volume->setValue(effect->getParameter(index));
m_volume->setDirty();
break;
}
}
//-------------------------------------------------------------------------------------------------
void CEditor::valueChanged(CDrawContext* context, CControl* control)
{
VstInt32 tag = control->getTag();
switch(tag)
{
case kVolume:
effect->setParameterAutomated(tag, control->getValue());
control->setDirty();
break;
}
}
//-------------------------------------------------------------------------------------------------How can I build a working 32bit or (even better) 64bit dll?
Any help & criticism is much appreciated!
Thanks!
Thomas
