135 lines
5.0 KiB
C++
135 lines
5.0 KiB
C++
// Copyright (c) 2012-2020 Intel Corporation
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#if !defined(__MFX_LIBRARY_ITERATOR_H)
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#define __MFX_LIBRARY_ITERATOR_H
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#include <mfxvideo.h>
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#if !defined(MEDIASDK_UWP_DISPATCHER)
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#include "mfx_win_reg_key.h"
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#endif
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#include "mfx_driver_store_loader.h"
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#include "mfx_dispatcher.h"
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namespace MFX
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{
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// declare desired storage ID
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enum
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{
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#if defined (MFX_TRACER_WA_FOR_DS)
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MFX_UNKNOWN_KEY = -1,
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MFX_TRACER = 0,
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MFX_DRIVER_STORE = 1,
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MFX_CURRENT_USER_KEY = 2,
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MFX_LOCAL_MACHINE_KEY = 3,
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MFX_APP_FOLDER = 4,
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MFX_PATH_MSDK_FOLDER = 5,
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MFX_STORAGE_ID_FIRST = MFX_TRACER,
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MFX_STORAGE_ID_LAST = MFX_PATH_MSDK_FOLDER
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#else
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MFX_UNKNOWN_KEY = -1,
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MFX_DRIVER_STORE = 0,
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MFX_CURRENT_USER_KEY = 1,
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MFX_LOCAL_MACHINE_KEY = 2,
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MFX_APP_FOLDER = 3,
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MFX_PATH_MSDK_FOLDER = 4,
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MFX_STORAGE_ID_FIRST = MFX_DRIVER_STORE,
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MFX_STORAGE_ID_LAST = MFX_PATH_MSDK_FOLDER
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#endif
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};
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// Try to initialize using given implementation type. Select appropriate type automatically in case of MFX_IMPL_VIA_ANY.
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// Params: adapterNum - in, pImplInterface - in/out, pVendorID - out, pDeviceID - out
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mfxStatus SelectImplementationType(const mfxU32 adapterNum, mfxIMPL *pImplInterface, mfxU32 *pVendorID, mfxU32 *pDeviceID);
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const mfxU32 msdk_disp_path_len = 1024;
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class MFXLibraryIterator
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{
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public:
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// Default constructor
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MFXLibraryIterator(void);
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// Destructor
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~MFXLibraryIterator(void);
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// Initialize the iterator
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mfxStatus Init(eMfxImplType implType, mfxIMPL implInterface, const mfxU32 adapterNum, int storageID);
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// Get the next library path
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mfxStatus SelectDLLVersion(wchar_t *pPath, size_t pathSize,
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eMfxImplType *pImplType, mfxVersion minVersion);
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// Return interface type on which Intel adapter was found (if any): D3D9 or D3D11
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mfxIMPL GetImplementationType();
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// Retrun registry subkey name on which dll was selected after sucesfull call to selectDllVesion
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bool GetSubKeyName(wchar_t *subKeyName, size_t length) const;
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int GetStorageID() const { return m_StorageID; }
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protected:
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// Release the iterator
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void Release(void);
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// Initialize the registry iterator
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mfxStatus InitRegistry(int storageID);
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#if defined(MFX_TRACER_WA_FOR_DS)
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// Initialize the registry iterator for searching for tracer
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mfxStatus InitRegistryTracer();
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#endif
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// Initialize the app/module folder iterator
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mfxStatus InitFolder(eMfxImplType implType, const wchar_t * path, const int storageID);
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eMfxImplType m_implType; // Required library implementation
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mfxIMPL m_implInterface; // Required interface (D3D9, D3D11)
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mfxU32 m_vendorID; // (mfxU32) property of used graphic card
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mfxU32 m_deviceID; // (mfxU32) property of used graphic card
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bool m_bIsSubKeyValid;
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wchar_t m_SubKeyName[MFX_MAX_REGISTRY_KEY_NAME]; // registry subkey for selected module loaded
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int m_StorageID;
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#if !defined(MEDIASDK_UWP_DISPATCHER)
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WinRegKey m_baseRegKey; // (WinRegKey) main registry key
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#endif
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mfxU32 m_lastLibIndex; // (mfxU32) index of previously returned library
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mfxU32 m_lastLibMerit; // (mfxU32) merit of previously returned library
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wchar_t m_path[msdk_disp_path_len];
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DriverStoreLoader m_driverStoreLoader; // for loading MediaSDK from DriverStore
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private:
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// unimplemented by intent to make this class non-copyable
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MFXLibraryIterator(const MFXLibraryIterator &);
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void operator=(const MFXLibraryIterator &);
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};
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} // namespace MFX
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#endif // __MFX_LIBRARY_ITERATOR_H
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