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VST3: Implement ISizeableStream and IStreamAttributes

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This commit is contained in:
Robin Gareus 2020-10-08 04:18:38 +02:00
parent 6dc909696f
commit 53d406e47d
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
2 changed files with 56 additions and 2 deletions
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14
libs/ardour/ardour/vst3_host.h
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@ -343,7 +343,7 @@ protected:
std::vector<Vst::Event> _events;
};
class LIBARDOUR_LOCAL RAMStream : public IBStream
class LIBARDOUR_LOCAL RAMStream : public IBStream, public ISizeableStream, public Vst::IStreamAttributes
{
public:
RAMStream ();
@ -352,7 +352,7 @@ public:
virtual ~RAMStream ();
QUERY_INTERFACE_IMPL (IBStream)
tresult PLUGIN_API queryInterface (const TUID _iid, void** obj) SMTG_OVERRIDE;
uint32 PLUGIN_API addRef () SMTG_OVERRIDE { return 1; }
uint32 PLUGIN_API release () SMTG_OVERRIDE { return 1; }
@ -362,6 +362,14 @@ public:
tresult PLUGIN_API seek (int64 pos, int32 mode, int64* result) SMTG_OVERRIDE;
tresult PLUGIN_API tell (int64* pos) SMTG_OVERRIDE;
/* ISizeableStream API */
tresult PLUGIN_API getStreamSize (int64&) SMTG_OVERRIDE;
tresult PLUGIN_API setStreamSize (int64) SMTG_OVERRIDE;
/* IStreamAttributes API */
tresult PLUGIN_API getFileName (Vst::String128 name) SMTG_OVERRIDE;
Vst::IAttributeList* PLUGIN_API getAttributes () SMTG_OVERRIDE;
/* convenience API for state I/O */
void rewind () { _pos = 0; }
bool readonly () const { return _readonly; }
@ -404,6 +412,8 @@ private:
int64 _alloc;
int64 _pos;
bool _readonly;
HostAttributeList attribute_list;
};
#if defined(__clang__)

44
libs/ardour/vst3_host.cc
View File

@ -35,6 +35,7 @@ DEF_CLASS_IID (IPluginFactory)
DEF_CLASS_IID (IPluginFactory2)
DEF_CLASS_IID (IPlugFrame)
DEF_CLASS_IID (IPlugView)
DEF_CLASS_IID (ISizeableStream)
DEF_CLASS_IID (Vst::IAttributeList)
DEF_CLASS_IID (Vst::IAudioProcessor)
DEF_CLASS_IID (Vst::IAutomationState)
@ -54,6 +55,7 @@ DEF_CLASS_IID (Vst::IParameterChanges)
DEF_CLASS_IID (Vst::IParamValueQueue)
DEF_CLASS_IID (Vst::IPlugInterfaceSupport)
DEF_CLASS_IID (Vst::IProgramListData)
DEF_CLASS_IID (Vst::IStreamAttributes)
DEF_CLASS_IID (Vst::IUnitData)
DEF_CLASS_IID (Vst::IUnitInfo)
@ -510,6 +512,20 @@ RAMStream::~RAMStream ()
free (_data);
}
tresult
RAMStream::queryInterface (const TUID _iid, void** obj)
{
QUERY_INTERFACE (_iid, obj, FUnknown::iid, IBStream)
QUERY_INTERFACE (_iid, obj, IBStream::iid, IBStream)
QUERY_INTERFACE (_iid, obj, FUnknown::iid, ISizeableStream)
QUERY_INTERFACE (_iid, obj, ISizeableStream::iid, ISizeableStream)
QUERY_INTERFACE (_iid, obj, FUnknown::iid, Vst::IStreamAttributes)
QUERY_INTERFACE (_iid, obj, Vst::IStreamAttributes::iid, Vst::IStreamAttributes)
*obj = nullptr;
return kNoInterface;
}
bool
RAMStream::reallocate_buffer (int64 size, bool exact)
{
@ -748,6 +764,34 @@ RAMStream::read_TUID (TUID& tuid)
return true;
}
tresult
RAMStream::getStreamSize (int64& size)
{
size = _alloc;
return kResultTrue;
}
tresult
RAMStream::setStreamSize (int64 size)
{
if (_readonly) {
return kResultFalse;
}
return reallocate_buffer (size, true) ? kResultOk : kOutOfMemory;
}
tresult
RAMStream::getFileName (Vst::String128 name)
{
return kNotImplemented;
}
Vst::IAttributeList*
RAMStream::getAttributes ()
{
return &attribute_list;
}
#ifndef NDEBUG
#include <iostream>