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/*
* (C) 2003-2006 Gabest
* (C) 2006-2014 see Authors.txt
*
* This file is part of MPC-HC.
*
* MPC-HC is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* MPC-HC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#pragma once
#include <memory>
#include <mutex>
#include <condition_variable>
#include "ISubPic.h"
#include "SubPicQueueSettings.h"
class CSubPicQueueImpl : public CUnknown, public ISubPicQueue
{
static const double DEFAULT_FPS;
protected:
struct SubPicProviderWithSharedLock {
private:
unsigned int m_nRef = 0;
std::mutex m_mutex;
public:
const CComPtr<ISubPicProvider> pSubPicProvider;
SubPicProviderWithSharedLock(const CComPtr<ISubPicProvider>& pSubPicProvider)
: pSubPicProvider(pSubPicProvider) {
}
HRESULT Lock() {
HRESULT hr;
if (pSubPicProvider) {
std::lock_guard<std::mutex> lock(m_mutex);
hr = S_OK;
if ((m_nRef == 0 && SUCCEEDED(hr = pSubPicProvider->Lock()))
|| m_nRef > 0) {
m_nRef++;
}
} else {
hr = E_POINTER;
}
return hr;
}
HRESULT Unlock() {
HRESULT hr;
if (pSubPicProvider) {
std::lock_guard<std::mutex> lock(m_mutex);
hr = S_OK;
if ((m_nRef == 1 && SUCCEEDED(hr = pSubPicProvider->Unlock()))
|| m_nRef > 1) {
m_nRef--;
}
} else {
hr = E_POINTER;
}
return hr;
}
};
private:
CCritSec m_csSubPicProvider;
std::shared_ptr<SubPicProviderWithSharedLock> m_pSubPicProviderWithSharedLock;
protected:
double m_fps;
REFERENCE_TIME m_rtTimePerFrame;
REFERENCE_TIME m_rtTimePerSubFrame;
REFERENCE_TIME m_rtNow;
SubPicQueueSettings m_settings;
CComPtr<ISubPicAllocator> m_pAllocator;
std::shared_ptr<SubPicProviderWithSharedLock> GetSubPicProviderWithSharedLock() {
CAutoLock cAutoLock(&m_csSubPicProvider);
return m_pSubPicProviderWithSharedLock;
}
HRESULT RenderTo(ISubPic* pSubPic, REFERENCE_TIME rtStart, REFERENCE_TIME rtStop, double fps, BOOL bIsAnimated);
public:
CSubPicQueueImpl(SubPicQueueSettings settings, ISubPicAllocator* pAllocator, HRESULT* phr);
virtual ~CSubPicQueueImpl();
DECLARE_IUNKNOWN;
STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);
// ISubPicQueue
STDMETHODIMP SetSubPicProvider(ISubPicProvider* pSubPicProvider);
STDMETHODIMP GetSubPicProvider(ISubPicProvider** pSubPicProvider);
STDMETHODIMP SetFPS(double fps);
STDMETHODIMP SetTime(REFERENCE_TIME rtNow);
/*
STDMETHODIMP Invalidate(REFERENCE_TIME rtInvalidate = -1) PURE;
STDMETHODIMP_(bool) LookupSubPic(REFERENCE_TIME rtNow, ISubPic** ppSubPic) PURE;
STDMETHODIMP_(bool) LookupSubPic(REFERENCE_TIME rtNow, bool bAdviseBlocking, CComPtr<ISubPic>& pSubPic);
STDMETHODIMP GetStats(int& nSubPics, REFERENCE_TIME& rtNow, REFERENCE_TIME& rtStart, REFERENCE_TIME& rtStop) PURE;
STDMETHODIMP GetStats(int nSubPics, REFERENCE_TIME& rtStart, REFERENCE_TIME& rtStop) PURE;
*/
};
class CSubPicQueue : public CSubPicQueueImpl, protected CAMThread
{
protected:
bool m_bExitThread;
CComPtr<ISubPic> m_pSubPic;
CInterfaceList<ISubPic> m_queue;
std::mutex m_mutexSubpic; // to protect m_pSubPic
std::mutex m_mutexQueue; // to protect m_queue
std::condition_variable m_condQueueFull;
std::condition_variable m_condQueueReady;
CAMEvent m_runQueueEvent;
REFERENCE_TIME m_rtNowLast;
bool m_bInvalidate;
REFERENCE_TIME m_rtInvalidate;
bool EnqueueSubPic(CComPtr<ISubPic>& pSubPic, bool bBlocking);
REFERENCE_TIME GetCurrentRenderingTime();
// CAMThread
virtual DWORD ThreadProc();
public:
CSubPicQueue(SubPicQueueSettings settings, ISubPicAllocator* pAllocator, HRESULT* phr);
virtual ~CSubPicQueue();
// ISubPicQueue
STDMETHODIMP SetFPS(double fps);
STDMETHODIMP SetTime(REFERENCE_TIME rtNow);
STDMETHODIMP Invalidate(REFERENCE_TIME rtInvalidate = -1);
STDMETHODIMP_(bool) LookupSubPic(REFERENCE_TIME rtNow, CComPtr<ISubPic>& pSubPic);
STDMETHODIMP_(bool) LookupSubPic(REFERENCE_TIME rtNow, bool bAdviseBlocking, CComPtr<ISubPic>& pSubPic);
STDMETHODIMP GetStats(int& nSubPics, REFERENCE_TIME& rtNow, REFERENCE_TIME& rtStart, REFERENCE_TIME& rtStop);
STDMETHODIMP GetStats(int nSubPic, REFERENCE_TIME& rtStart, REFERENCE_TIME& rtStop);
};
class CSubPicQueueNoThread : public CSubPicQueueImpl
{
protected:
CCritSec m_csLock;
CComPtr<ISubPic> m_pSubPic;
public:
CSubPicQueueNoThread(SubPicQueueSettings settings, ISubPicAllocator* pAllocator, HRESULT* phr);
virtual ~CSubPicQueueNoThread();
// ISubPicQueue
STDMETHODIMP SetFPS(double fps);
STDMETHODIMP Invalidate(REFERENCE_TIME rtInvalidate = -1);
STDMETHODIMP_(bool) LookupSubPic(REFERENCE_TIME rtNow, CComPtr<ISubPic>& pSubPic);
STDMETHODIMP_(bool) LookupSubPic(REFERENCE_TIME rtNow, bool bAdviseBlocking, CComPtr<ISubPic>& pSubPic);
STDMETHODIMP GetStats(int& nSubPics, REFERENCE_TIME& rtNow, REFERENCE_TIME& rtStart, REFERENCE_TIME& rtStop);
STDMETHODIMP GetStats(int nSubPic, REFERENCE_TIME& rtStart, REFERENCE_TIME& rtStop);
};
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