mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-30 19:53:46 +00:00
134 lines
5.4 KiB
C
134 lines
5.4 KiB
C
/*
|
|
* Copyright 2010-2015 Intel Corporation.
|
|
*
|
|
* This library is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published
|
|
* by the Free Software Foundation, version 2.1.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
* 02110-1301 USA.
|
|
*
|
|
* Disclaimer: The codes contained in these modules may be specific
|
|
* to the Intel Software Development Platform codenamed Knights Ferry,
|
|
* and the Intel product codenamed Knights Corner, and are not backward
|
|
* compatible with other Intel products. Additionally, Intel will NOT
|
|
* support the codes or instruction set in future products.
|
|
*
|
|
* Intel offers no warranty of any kind regarding the code. This code is
|
|
* licensed on an "AS IS" basis and Intel is not obligated to provide
|
|
* any support, assistance, installation, training, or other services
|
|
* of any kind. Intel is also not obligated to provide any updates,
|
|
* enhancements or extensions. Intel specifically disclaims any warranty
|
|
* of merchantability, non-infringement, fitness for any particular
|
|
* purpose, and any other warranty.
|
|
*
|
|
* Further, Intel disclaims all liability of any kind, including but
|
|
* not limited to liability for infringement of any proprietary rights,
|
|
* relating to the use of the code, even if Intel is notified of the
|
|
* possibility of such liability. Except as expressly stated in an Intel
|
|
* license agreement provided with this code and agreed upon with Intel,
|
|
* no license, express or implied, by estoppel or otherwise, to any
|
|
* intellectual property rights is granted herein.
|
|
*/
|
|
|
|
#ifndef _COIBUFFER_SINK_H
|
|
#define _COIBUFFER_SINK_H
|
|
|
|
/** @ingroup COIBuffer
|
|
* @addtogroup COIBufferSink
|
|
@{
|
|
|
|
* @file sink\COIBuffer_sink.h
|
|
*/
|
|
#ifndef DOXYGEN_SHOULD_SKIP_THIS
|
|
#include "../common/COITypes_common.h"
|
|
#include "../common/COIResult_common.h"
|
|
#endif // DOXYGEN_SHOULD_SKIP_THIS
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
///
|
|
/// Adds a reference to the memory of a buffer. The memory of the buffer
|
|
/// will remain on the device until both a corresponding COIBufferReleaseRef()
|
|
/// call is made and the run function that delivered the buffer returns.
|
|
///
|
|
/// Running this API in a thread spawned within the run function is not
|
|
/// supported and will cause unpredictable results and may cause data corruption.
|
|
///
|
|
/// @warning 1.It is possible for enqueued run functions to be unable to
|
|
/// execute due to all card memory being occupied by AddRef'd
|
|
/// buffers. As such, it is important that whenever a buffer is
|
|
/// AddRef'd that there be no dependencies on future run functions
|
|
/// for progress to be made towards releasing the buffer.
|
|
/// 2.It is important that AddRef is called within the scope of
|
|
/// run function that carries the buffer to be AddRef'd.
|
|
///
|
|
/// @param in_pBuffer
|
|
/// [in] Pointer to the start of a buffer being AddRef'd, that was
|
|
/// passed in at the start of the run function.
|
|
///
|
|
/// @return COI_SUCCESS if the buffer ref count was successfully incremented.
|
|
///
|
|
/// @return COI_INVALID_POINTER if the buffer pointer is NULL.
|
|
///
|
|
/// @return COI_INVALID_HANDLE if the buffer pointer is invalid.
|
|
///
|
|
COIRESULT
|
|
COIBufferAddRef(
|
|
void* in_pBuffer);
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
///
|
|
/// Removes a reference to the memory of a buffer. The memory of the buffer
|
|
/// will be eligible for being freed on the device when the following
|
|
/// conditions are met: the run function that delivered the buffer
|
|
/// returns, and the number of calls to COIBufferReleaseRef() matches the
|
|
/// number of calls to COIBufferAddRef().
|
|
//
|
|
/// Running this API in a thread spawned within the run function is not
|
|
/// supported and will cause unpredictable results and may cause data corruption.
|
|
///
|
|
/// @warning When a buffer is AddRef'd it is assumed that it is in use and all
|
|
/// other operations on that buffer waits for ReleaseRef() to happen.
|
|
/// So you cannot pass the AddRef'd buffer's handle to RunFunction
|
|
/// that calls ReleaseRef(). This is a circular dependency and will
|
|
/// cause a deadlock. Buffer's pointer (buffer's sink side
|
|
/// address/pointer which is different than source side BUFFER handle)
|
|
/// needs to be stored somewhere to retrieve it later to use in
|
|
/// ReleaseRef.
|
|
///
|
|
/// @param in_pBuffer
|
|
/// [in] Pointer to the start of a buffer previously AddRef'd, that
|
|
/// was passed in at the start of the run function.
|
|
///
|
|
/// @return COI_SUCCESS if the buffer refcount was successfully decremented.
|
|
///
|
|
/// @return COI_INVALID_POINTER if the buffer pointer was invalid.
|
|
///
|
|
/// @return COI_INVALID_HANDLE if the buffer did not have COIBufferAddRef()
|
|
/// previously called on it.
|
|
///
|
|
COIRESULT
|
|
COIBufferReleaseRef(
|
|
void* in_pBuffer);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /* _COIBUFFER_SINK_H */
|
|
|
|
/*! @} */
|