Robin E.R. Davies
109 lines
3.6 KiB
C++
109 lines
3.6 KiB
C++
/*
|
|
* MIT License
|
|
*
|
|
* Copyright (c) Robin E.R. Davies
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
* this software and associated documentation files (the "Software"), to deal in
|
|
* the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is furnished to do
|
|
* so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "public.sdk/source/common/memorystream.h"
|
|
#include <mutex>
|
|
#include "Vst3RtStream.hpp"
|
|
|
|
namespace pipedal
|
|
{
|
|
using namespace Steinberg;
|
|
|
|
class IRtStream : public IBStream
|
|
{
|
|
public:
|
|
virtual void QueueForRelease() = 0;
|
|
};
|
|
|
|
class RtStreamPool;
|
|
|
|
class RtStream : public IRtStream
|
|
{
|
|
friend class RtStreamPool;
|
|
|
|
virtual void PLUGIN_API QueueForRelease();
|
|
RtStream(RtStreamPool *pool);
|
|
|
|
public:
|
|
virtual ~RtStream();
|
|
//---IBStream---------------------------------------
|
|
tresult PLUGIN_API read(void *buffer, int32 numBytes, int32 *numBytesRead) SMTG_OVERRIDE;
|
|
tresult PLUGIN_API write(void *buffer, int32 numBytes, int32 *numBytesWritten) SMTG_OVERRIDE;
|
|
tresult PLUGIN_API seek(int64 pos, int32 mode, int64 *result) SMTG_OVERRIDE;
|
|
tresult PLUGIN_API tell(int64 *pos) SMTG_OVERRIDE;
|
|
|
|
TSize getSize() const; ///< returns the current memory size
|
|
void setSize(TSize size); ///< set the memory size, a realloc will occur if memory already used
|
|
char *getData() const; ///< returns the memory pointer
|
|
char *detachData(); ///< returns the memory pointer and give up ownership
|
|
bool truncate(); ///< realloc to the current use memory size if needed
|
|
bool truncateToCursor(); ///< truncate memory at current cursor position
|
|
|
|
//------------------------------------------------------------------------
|
|
DECLARE_FUNKNOWN_METHODS
|
|
protected:
|
|
RtStreamPool *pool = nullptr;
|
|
RtStream *next = nullptr;
|
|
char *memory; // memory block
|
|
TSize memorySize; // size of the memory block
|
|
TSize size; // size of the stream
|
|
int64 cursor; // stream pointer
|
|
bool ownMemory; // stream has allocated memory itself
|
|
bool allocationError; // stream invalid
|
|
};
|
|
|
|
class RtStreamPool
|
|
{
|
|
public:
|
|
~RtStreamPool()
|
|
{
|
|
ReleaseStreams();
|
|
}
|
|
IRtStream *AllocateBStream()
|
|
{
|
|
ReleaseStreams();
|
|
return new RtStream(this);
|
|
}
|
|
void ReleaseStreams();
|
|
|
|
private:
|
|
friend class RtStream;
|
|
|
|
RtStream *freeStreamList = nullptr;
|
|
|
|
void QueueForRelease(RtStream *pStream)
|
|
{
|
|
pStream->next = freeStreamList;
|
|
freeStreamList = pStream;
|
|
}
|
|
};
|
|
|
|
|
|
inline void RtStream::QueueForRelease()
|
|
{
|
|
pool->QueueForRelease(this);
|
|
}
|
|
}; |