127 lines
3.8 KiB
C
127 lines
3.8 KiB
C
/*
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* Copyright (c) 2012 Intel Corporation. All Rights Reserved.
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* Copyright (c) 2023 Emil Velikov
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "sysdeps.h"
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#include <xf86drm.h>
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#include "va_drm.h"
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#include "va_backend.h"
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#include "va_internal.h"
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#include "va_drmcommon.h"
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#include "va_drm_auth.h"
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#include "va_drm_utils.h"
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static void
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va_DisplayContextDestroy(VADisplayContextP pDisplayContext)
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{
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if (!pDisplayContext)
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return;
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free(pDisplayContext->pDriverContext->drm_state);
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free(pDisplayContext->pDriverContext);
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free(pDisplayContext);
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}
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static VAStatus va_DisplayContextConnect(
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VADisplayContextP pDisplayContext
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)
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{
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VADriverContextP const ctx = pDisplayContext->pDriverContext;
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struct drm_state * const drm_state = ctx->drm_state;
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drm_magic_t magic;
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int ret;
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/* Authentication is only needed for a legacy DRM device */
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if (ctx->display_type != VA_DISPLAY_DRM_RENDERNODES) {
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ret = drmGetMagic(drm_state->fd, &magic);
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if (ret < 0)
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return VA_STATUS_ERROR_OPERATION_FAILED;
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if (!va_drm_authenticate(drm_state->fd, magic))
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return VA_STATUS_ERROR_OPERATION_FAILED;
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}
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drm_state->auth_type = VA_DRM_AUTH_CUSTOM;
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return VA_STATUS_SUCCESS;
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}
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static VAStatus
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va_DisplayContextGetDriverNames(
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VADisplayContextP pDisplayContext,
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char **drivers,
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unsigned *num_drivers
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)
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{
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VADriverContextP const ctx = pDisplayContext->pDriverContext;
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VAStatus status = va_DisplayContextConnect(pDisplayContext);
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if (status != VA_STATUS_SUCCESS)
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return status;
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return VA_DRM_GetDriverNames(ctx, drivers, num_drivers);
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}
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VADisplay
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vaGetDisplayDRM(int fd)
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{
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VADisplayContextP pDisplayContext = NULL;
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VADriverContextP pDriverContext = NULL;
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struct drm_state *drm_state = NULL;
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int node_type;
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if (fd < 0 || (node_type = drmGetNodeTypeFromFd(fd)) < 0)
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return NULL;
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/* Create new entry */
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/* XXX: handle cache? */
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drm_state = calloc(1, sizeof(*drm_state));
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if (!drm_state)
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goto error;
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drm_state->fd = fd;
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pDisplayContext = va_newDisplayContext();
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if (!pDisplayContext)
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goto error;
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pDisplayContext->vaDestroy = va_DisplayContextDestroy;
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pDisplayContext->vaGetDriverNames = va_DisplayContextGetDriverNames;
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pDriverContext = va_newDriverContext(pDisplayContext);
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if (!pDriverContext)
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goto error;
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pDriverContext->native_dpy = NULL;
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pDriverContext->display_type = node_type == DRM_NODE_RENDER ?
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VA_DISPLAY_DRM_RENDERNODES : VA_DISPLAY_DRM;
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pDriverContext->drm_state = drm_state;
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return pDisplayContext;
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error:
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free(pDisplayContext);
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free(pDriverContext);
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free(drm_state);
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return NULL;
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}
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