forked from marfrit/libva-v4l2-request-fourier
Florent Revest
e263c9542c
This VA backend uses v4l2's Frame API proposal to interface with the "sunxi-cedrus" video driver on Allwinner SoC. Only a few parts of the code are really dependent on sunxi-cedrus and this VA backend could be reused for other v4l drivers using the Frame API.
70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/*
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* Copyright (c) 2016 Florent Revest, <florent.revest@free-electrons.com>
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* 2007 Intel Corporation. All Rights Reserved.
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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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#ifndef _BUFFER_H_
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#define _BUFFER_H_
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#include <va/va_backend.h>
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#include "object_heap.h"
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#include "sunxi_cedrus_drv_video.h"
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#define BUFFER(id) ((object_buffer_p) object_heap_lookup(&driver_data->buffer_heap, id))
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#define BUFFER_ID_OFFSET 0x08000000
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struct object_buffer {
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struct object_base base;
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void *buffer_data;
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int max_num_elements;
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int num_elements;
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VABufferType type;
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unsigned int size;
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};
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typedef struct object_buffer *object_buffer_p;
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VAStatus sunxi_cedrus_CreateBuffer(VADriverContextP ctx, VAContextID context,
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VABufferType type, unsigned int size, unsigned int num_elements,
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void *data, VABufferID *buf_id);
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VAStatus sunxi_cedrus_BufferSetNumElements(VADriverContextP ctx,
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VABufferID buf_id, unsigned int num_elements);
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VAStatus sunxi_cedrus_MapBuffer(VADriverContextP ctx, VABufferID buf_id,
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void **pbuf);
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VAStatus sunxi_cedrus_UnmapBuffer(VADriverContextP ctx, VABufferID buf_id);
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void sunxi_cedrus_destroy_buffer(struct sunxi_cedrus_driver_data *driver_data,
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object_buffer_p obj_buffer);
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VAStatus sunxi_cedrus_DestroyBuffer(VADriverContextP ctx, VABufferID buffer_id);
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VAStatus sunxi_cedrus_BufferInfo(VADriverContextP ctx, VABufferID buf_id,
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VABufferType *type, unsigned int *size,
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unsigned int *num_elements);
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#endif /* _BUFFER_H_ */
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