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// Copyright (c) 2012-2020 Intel Corporation
//
// 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.
#if !defined(__MFX_LIBRARY_ITERATOR_H)
#define __MFX_LIBRARY_ITERATOR_H
#include <mfxvideo.h>
#if !defined(MEDIASDK_UWP_DISPATCHER)
#include "mfx_win_reg_key.h"
#endif
#include "mfx_driver_store_loader.h"
#include "mfx_dispatcher.h"
namespace MFX
{
// declare desired storage ID
enum
{
#if defined (MFX_TRACER_WA_FOR_DS)
MFX_UNKNOWN_KEY = -1,
MFX_TRACER = 0,
MFX_DRIVER_STORE = 1,
MFX_CURRENT_USER_KEY = 2,
MFX_LOCAL_MACHINE_KEY = 3,
MFX_APP_FOLDER = 4,
MFX_PATH_MSDK_FOLDER = 5,
MFX_STORAGE_ID_FIRST = MFX_TRACER,
MFX_STORAGE_ID_LAST = MFX_PATH_MSDK_FOLDER
#else
MFX_UNKNOWN_KEY = -1,
MFX_DRIVER_STORE = 0,
MFX_CURRENT_USER_KEY = 1,
MFX_LOCAL_MACHINE_KEY = 2,
MFX_APP_FOLDER = 3,
MFX_PATH_MSDK_FOLDER = 4,
MFX_STORAGE_ID_FIRST = MFX_DRIVER_STORE,
MFX_STORAGE_ID_LAST = MFX_PATH_MSDK_FOLDER
#endif
};
// Try to initialize using given implementation type. Select appropriate type automatically in case of MFX_IMPL_VIA_ANY.
// Params: adapterNum - in, pImplInterface - in/out, pVendorID - out, pDeviceID - out
mfxStatus SelectImplementationType(const mfxU32 adapterNum, mfxIMPL *pImplInterface, mfxU32 *pVendorID, mfxU32 *pDeviceID);
const mfxU32 msdk_disp_path_len = 1024;
class MFXLibraryIterator
{
public:
// Default constructor
MFXLibraryIterator(void);
// Destructor
~MFXLibraryIterator(void);
// Initialize the iterator
mfxStatus Init(eMfxImplType implType, mfxIMPL implInterface, const mfxU32 adapterNum, int storageID);
// Get the next library path
mfxStatus SelectDLLVersion(wchar_t *pPath, size_t pathSize,
eMfxImplType *pImplType, mfxVersion minVersion);
// Return interface type on which Intel adapter was found (if any): D3D9 or D3D11
mfxIMPL GetImplementationType();
// Retrun registry subkey name on which dll was selected after sucesfull call to selectDllVesion
bool GetSubKeyName(wchar_t *subKeyName, size_t length) const;
int GetStorageID() const { return m_StorageID; }
protected:
// Release the iterator
void Release(void);
// Initialize the registry iterator
mfxStatus InitRegistry(int storageID);
#if defined(MFX_TRACER_WA_FOR_DS)
// Initialize the registry iterator for searching for tracer
mfxStatus InitRegistryTracer();
#endif
// Initialize the app/module folder iterator
mfxStatus InitFolder(eMfxImplType implType, const wchar_t * path, const int storageID);
eMfxImplType m_implType; // Required library implementation
mfxIMPL m_implInterface; // Required interface (D3D9, D3D11)
mfxU32 m_vendorID; // (mfxU32) property of used graphic card
mfxU32 m_deviceID; // (mfxU32) property of used graphic card
bool m_bIsSubKeyValid;
wchar_t m_SubKeyName[MFX_MAX_REGISTRY_KEY_NAME]; // registry subkey for selected module loaded
int m_StorageID;
#if !defined(MEDIASDK_UWP_DISPATCHER)
WinRegKey m_baseRegKey; // (WinRegKey) main registry key
#endif
mfxU32 m_lastLibIndex; // (mfxU32) index of previously returned library
mfxU32 m_lastLibMerit; // (mfxU32) merit of previously returned library
wchar_t m_path[msdk_disp_path_len];
DriverStoreLoader m_driverStoreLoader; // for loading MediaSDK from DriverStore
private:
// unimplemented by intent to make this class non-copyable
MFXLibraryIterator(const MFXLibraryIterator &);
void operator=(const MFXLibraryIterator &);
};
} // namespace MFX
#endif // __MFX_LIBRARY_ITERATOR_H
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