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mfx_va_glue.c
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mfx_va_glue.c
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/*
* Copyright 2013 Luca Barbato. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <mfx/mfxvideo.h>
#ifdef HAVE_LIBVA_DRM
#include <va/va_drm.h>
#include <va/va_drmcommon.h>
#include <va/va_backend.h>
void *mfx_allocate_va(mfxSession session)
{
char *card = getenv("MFX_DRM_CARD");
int ret, fd;
int minor, major;
VADisplay display;
if (!card)
card = (char*)"/dev/dri/card0";
if ((fd = open(card, O_RDWR)) < 0)
return NULL;
if (!(display = vaGetDisplayDRM(fd)))
goto fail;
if (vaInitialize(display, &major, &minor) != VA_STATUS_SUCCESS)
goto fail;
ret = MFXVideoCORE_SetHandle(session, MFX_HANDLE_VA_DISPLAY, display);
if (ret != MFX_ERR_NONE)
goto fail;
return display;
fail:
close(fd);
return NULL;
}
void mfx_deallocate_va(void *handle)
{
VADisplayContextP display;
VADriverContextP driver;
VADisplay disp;
struct drm_state *state;
disp = handle;
if (!disp)
return;
display = (VADisplayContextP)disp;
driver = display->pDriverContext;
state = (struct drm_state *)driver->drm_state;
close(state->fd);
vaTerminate(disp);
}
#endif