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/*############################################################################
# Copyright (C) 2005 Intel Corporation
#
# SPDX-License-Identifier: MIT
############################################################################*/
#ifndef __BASE_ALLOCATOR_H__
#define __BASE_ALLOCATOR_H__
#include <string.h>
#include <functional>
#include <list>
#include <memory>
#include <mutex>
#include <string>
#include "vpl/mfxvideo.h"
struct mfxAllocatorParams {
virtual ~mfxAllocatorParams(){};
};
// this class implements methods declared in mfxFrameAllocator structure
// simply redirecting them to virtual methods which should be overridden in derived classes
class MFXFrameAllocator : public mfxFrameAllocator {
public:
MFXFrameAllocator();
virtual ~MFXFrameAllocator();
// optional method, override if need to pass some parameters to allocator from application
virtual mfxStatus Init(mfxAllocatorParams* pParams) = 0;
virtual mfxStatus Close() = 0;
virtual mfxStatus AllocFrames(mfxFrameAllocRequest* request,
mfxFrameAllocResponse* response) = 0;
virtual mfxStatus ReallocFrame(mfxMemId midIn,
const mfxFrameInfo* info,
mfxU16 memType,
mfxMemId* midOut) = 0;
virtual mfxStatus LockFrame(mfxMemId mid, mfxFrameData* ptr) = 0;
virtual mfxStatus UnlockFrame(mfxMemId mid, mfxFrameData* ptr) = 0;
virtual mfxStatus GetFrameHDL(mfxMemId mid, mfxHDL* handle) = 0;
virtual mfxStatus FreeFrames(mfxFrameAllocResponse* response) = 0;
virtual mfxStatus Create3DLutMemory(mfxMemId memId, const char* lut3d_file_name) = 0;
virtual mfxStatus Create3DLutMemory(mfxMemId memId, const std::string& lut3d_file_name) = 0;
virtual mfxStatus Release3DLutMemory(mfxMemId memId) = 0;
private:
static mfxStatus MFX_CDECL Alloc_(mfxHDL pthis,
mfxFrameAllocRequest* request,
mfxFrameAllocResponse* response);
static mfxStatus MFX_CDECL Lock_(mfxHDL pthis, mfxMemId mid, mfxFrameData* ptr);
static mfxStatus MFX_CDECL Unlock_(mfxHDL pthis, mfxMemId mid, mfxFrameData* ptr);
static mfxStatus MFX_CDECL GetHDL_(mfxHDL pthis, mfxMemId mid, mfxHDL* handle);
static mfxStatus MFX_CDECL Free_(mfxHDL pthis, mfxFrameAllocResponse* response);
};
// This class implements basic logic of memory allocator
// Manages responses for different components according to allocation request type
// External frames of a particular component-related type are allocated in one call
// Further calls return previously allocated response.
// Ex. Preallocated frame chain with type=FROM_ENCODE | FROM_VPPIN will be returned when
// request type contains either FROM_ENCODE or FROM_VPPIN
// This class does not allocate any actual memory
class BaseFrameAllocator : public MFXFrameAllocator {
public:
BaseFrameAllocator();
virtual ~BaseFrameAllocator();
virtual mfxStatus Init(mfxAllocatorParams* pParams) = 0;
virtual mfxStatus Close();
virtual mfxStatus AllocFrames(mfxFrameAllocRequest* request, mfxFrameAllocResponse* response);
virtual mfxStatus ReallocFrame(mfxMemId midIn,
const mfxFrameInfo* info,
mfxU16 memType,
mfxMemId* midOut);
virtual mfxStatus FreeFrames(mfxFrameAllocResponse* response);
virtual mfxStatus Create3DLutMemory(mfxMemId memId, const char* lut3d_file_name) {
return MFX_ERR_NONE;
}
virtual mfxStatus Create3DLutMemory(mfxMemId memId, const std::string& lut3d_file_name) {
return Create3DLutMemory(memId, lut3d_file_name.c_str());
}
virtual mfxStatus Release3DLutMemory(mfxMemId memId) {
return MFX_ERR_NONE;
}
protected:
std::mutex mtx;
/* Disabling copy and move semantics to enforce thread syncronization */
BaseFrameAllocator(const BaseFrameAllocator&) = delete;
BaseFrameAllocator(BaseFrameAllocator&&) = delete;
BaseFrameAllocator& operator=(const BaseFrameAllocator&) = delete;
BaseFrameAllocator& operator=(BaseFrameAllocator&&) = delete;
typedef std::list<mfxFrameAllocResponse>::iterator Iter;
static const mfxU32 MEMTYPE_FROM_MASK = MFX_MEMTYPE_FROM_ENCODE | MFX_MEMTYPE_FROM_DECODE |
MFX_MEMTYPE_FROM_VPPIN | MFX_MEMTYPE_FROM_VPPOUT |
MFX_MEMTYPE_FROM_ENC | MFX_MEMTYPE_FROM_PAK;
static const mfxU32 MEMTYPE_FROM_MASK_INT_EXT =
MEMTYPE_FROM_MASK | MFX_MEMTYPE_INTERNAL_FRAME | MFX_MEMTYPE_EXTERNAL_FRAME;
struct UniqueResponse : mfxFrameAllocResponse {
mfxU16 m_width;
mfxU16 m_height;
mfxU32 m_refCount;
mfxU16 m_type;
UniqueResponse()
: mfxFrameAllocResponse(),
m_width(0),
m_height(0),
m_refCount(0),
m_type(0) {}
// compare responses by actual frame size, alignment (w and h) is up to application
UniqueResponse(const mfxFrameAllocResponse& response,
mfxU16 width,
mfxU16 height,
mfxU16 type)
: mfxFrameAllocResponse(response),
m_width(width),
m_height(height),
m_refCount(1),
m_type(type) {}
//compare by resolution (and memory type for FEI ENC / PAK)
bool operator()(const UniqueResponse& response) const {
if (m_width <= response.m_width && m_height <= response.m_height) {
// For FEI ENC and PAK we need to distinguish between INTERNAL and EXTERNAL frames
if (m_type & response.m_type & (MFX_MEMTYPE_FROM_ENC | MFX_MEMTYPE_FROM_PAK)) {
return !!((m_type & response.m_type) & 0x000f);
}
else {
return !!(m_type & response.m_type & MFX_MEMTYPE_FROM_DECODE);
}
}
else {
return false;
}
}
static mfxU16 CropMemoryTypeToStore(mfxU16 type) {
// Remain INTERNAL / EXTERNAL flag for FEI ENC / PAK
switch (type & 0xf000) {
case MFX_MEMTYPE_FROM_ENC:
case MFX_MEMTYPE_FROM_PAK:
case (MFX_MEMTYPE_FROM_ENC | MFX_MEMTYPE_FROM_PAK):
return type & MEMTYPE_FROM_MASK_INT_EXT;
break;
default:
return type & MEMTYPE_FROM_MASK;
break;
}
}
};
std::list<mfxFrameAllocResponse> m_responses;
std::list<UniqueResponse> m_ExtResponses;
struct IsSame {
bool operator()(const mfxFrameAllocResponse& l, const mfxFrameAllocResponse& r) const {
return r.mids != 0 && l.mids != 0 && r.mids[0] == l.mids[0] &&
r.NumFrameActual == l.NumFrameActual;
}
};
// checks if request is supported
virtual mfxStatus CheckRequestType(mfxFrameAllocRequest* request);
// frees memory attached to response
virtual mfxStatus ReleaseResponse(mfxFrameAllocResponse* response) = 0;
// allocates memory
virtual mfxStatus AllocImpl(mfxFrameAllocRequest* request, mfxFrameAllocResponse* response) = 0;
virtual mfxStatus ReallocImpl(mfxMemId midIn,
const mfxFrameInfo* info,
mfxU16 memType,
mfxMemId* midOut) = 0;
};
class MFXBufferAllocator {
public:
MFXBufferAllocator();
virtual ~MFXBufferAllocator();
virtual mfxStatus AllocBuffer(mfxU32 nbytes, mfxU16 type, mfxMemId* mid) = 0;
virtual mfxStatus LockBuffer(mfxMemId mid, mfxU8** ptr) = 0;
virtual mfxStatus UnlockBuffer(mfxMemId mid) = 0;
virtual mfxStatus FreeBuffer(mfxMemId mid) = 0;
mfxHDL pthis;
mfxStatus(MFX_CDECL* Alloc)(mfxHDL pthis, mfxU32 nbytes, mfxU16 type, mfxMemId* mid);
mfxStatus(MFX_CDECL* Lock)(mfxHDL pthis, mfxMemId mid, mfxU8** ptr);
mfxStatus(MFX_CDECL* Unlock)(mfxHDL pthis, mfxMemId mid);
mfxStatus(MFX_CDECL* Free)(mfxHDL pthis, mfxMemId mid);
private:
static mfxStatus MFX_CDECL Alloc_(mfxHDL pthis, mfxU32 nbytes, mfxU16 type, mfxMemId* mid);
static mfxStatus MFX_CDECL Lock_(mfxHDL pthis, mfxMemId mid, mfxU8** ptr);
static mfxStatus MFX_CDECL Unlock_(mfxHDL pthis, mfxMemId mid);
static mfxStatus MFX_CDECL Free_(mfxHDL pthis, mfxMemId mid);
};
#endif // __BASE_ALLOCATOR_H__
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