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/*
* Copyright (c) 2016 Florent Revest, <florent.revest@free-electrons.com>
* 2007 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "sunxi_cedrus.h"
#include "buffer.h"
#include "context.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <linux/videodev2.h>
/*
* A Buffer is a memory zone used to handle all kind of data, for example an IQ
* matrix or image buffer (which are allocated using realloc) or slice data
* (which are mmapped from v4l's kernel space)
*/
VAStatus SunxiCedrusCreateBuffer(VADriverContextP context,
VAContextID context_id, VABufferType type, unsigned int size,
unsigned int count, void *data, VABufferID *buffer_id)
{
struct sunxi_cedrus_driver_data *driver_data =
(struct sunxi_cedrus_driver_data *) context->pDriverData;
int bufferID;
struct v4l2_plane plane[1];
struct object_buffer *obj_buffer;
memset(plane, 0, sizeof(struct v4l2_plane));
/* Validate type */
switch (type) {
case VAPictureParameterBufferType:
case VAIQMatrixBufferType: /* Ignored */
case VASliceParameterBufferType:
case VASliceDataBufferType:
case VAImageBufferType:
/* Ok */
break;
default:
return VA_STATUS_ERROR_UNSUPPORTED_BUFFERTYPE;
}
bufferID = object_heap_allocate(&driver_data->buffer_heap);
obj_buffer = BUFFER(bufferID);
if (obj_buffer == NULL)
return VA_STATUS_ERROR_ALLOCATION_FAILED;
obj_buffer->type = type;
obj_buffer->initial_count = count;
obj_buffer->count = count;
obj_buffer->data = NULL;
obj_buffer->map = NULL;
obj_buffer->size = size;
obj_buffer->map_size = 0;
if(obj_buffer->type == VASliceDataBufferType) {
struct object_context *obj_context;
obj_context = CONTEXT(context_id);
assert(obj_context);
struct v4l2_buffer buf;
memset(&(buf), 0, sizeof(buf));
buf.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
buf.memory = V4L2_MEMORY_MMAP;
buf.index = obj_context->num_rendered_surfaces%INPUT_BUFFERS_NB;
buf.length = 1;
buf.m.planes = plane;
assert(ioctl(driver_data->mem2mem_fd, VIDIOC_QUERYBUF, &buf)==0);
obj_buffer->map_size = driver_data->slice_offset[buf.index] + size * count;
obj_buffer->map = mmap(NULL, obj_buffer->map_size,
PROT_READ | PROT_WRITE, MAP_SHARED,
driver_data->mem2mem_fd, buf.m.planes[0].m.mem_offset);
obj_buffer->data = obj_buffer->map + driver_data->slice_offset[buf.index];
driver_data->slice_offset[buf.index] += size * count;
} else {
obj_buffer->map = NULL;
obj_buffer->data = malloc(size * count);
}
if (obj_buffer->data == NULL || obj_buffer->map == MAP_FAILED)
return VA_STATUS_ERROR_ALLOCATION_FAILED;
if (data)
memcpy(obj_buffer->data, data, size * count);
*buffer_id = bufferID;
return VA_STATUS_SUCCESS;
}
VAStatus SunxiCedrusBufferSetNumElements(VADriverContextP context,
VABufferID buffer_id, unsigned int count)
{
struct sunxi_cedrus_driver_data *driver_data =
(struct sunxi_cedrus_driver_data *) context->pDriverData;
VAStatus vaStatus = VA_STATUS_SUCCESS;
struct object_buffer *obj_buffer = BUFFER(buffer_id);
assert(obj_buffer);
if ((count < 0) || (count > obj_buffer->initial_count))
vaStatus = VA_STATUS_ERROR_UNKNOWN;
if (VA_STATUS_SUCCESS == vaStatus)
obj_buffer->count = count;
return vaStatus;
}
VAStatus SunxiCedrusMapBuffer(VADriverContextP context, VABufferID buffer_id,
void **data_map)
{
struct sunxi_cedrus_driver_data *driver_data =
(struct sunxi_cedrus_driver_data *) context->pDriverData;
VAStatus vaStatus = VA_STATUS_ERROR_UNKNOWN;
struct object_buffer *obj_buffer = BUFFER(buffer_id);
assert(obj_buffer);
if (NULL == obj_buffer)
{
vaStatus = VA_STATUS_ERROR_INVALID_BUFFER;
return vaStatus;
}
if (NULL != obj_buffer->data)
{
*data_map = obj_buffer->data;
vaStatus = VA_STATUS_SUCCESS;
}
return vaStatus;
}
VAStatus SunxiCedrusUnmapBuffer(VADriverContextP context, VABufferID buffer_id)
{
struct sunxi_cedrus_driver_data *driver_data =
(struct sunxi_cedrus_driver_data *) context->pDriverData;
struct object_buffer *obj_buffer = BUFFER(buffer_id);
if (obj_buffer == NULL)
return VA_STATUS_ERROR_INVALID_BUFFER;
/* Do nothing */
return VA_STATUS_SUCCESS;
}
void sunxi_cedrus_destroy_buffer(struct sunxi_cedrus_driver_data *driver_data,
struct object_buffer *obj_buffer)
{
if (obj_buffer->data != NULL) {
if (obj_buffer->type != VASliceDataBufferType)
free(obj_buffer->data);
else if (obj_buffer->map != NULL && obj_buffer->map_size > 0)
munmap(obj_buffer->map, obj_buffer->map_size);
obj_buffer->map = NULL;
obj_buffer->data = NULL;
}
object_heap_free(&driver_data->buffer_heap, obj_buffer);
}
VAStatus SunxiCedrusDestroyBuffer(VADriverContextP context,
VABufferID buffer_id)
{
struct sunxi_cedrus_driver_data *driver_data =
(struct sunxi_cedrus_driver_data *) context->pDriverData;
struct object_buffer *obj_buffer = BUFFER(buffer_id);
assert(obj_buffer);
sunxi_cedrus_destroy_buffer(driver_data, obj_buffer);
return VA_STATUS_SUCCESS;
}
/* sunxi-cedrus doesn't support buffer info */
VAStatus SunxiCedrusBufferInfo(VADriverContextP context, VABufferID buffer_id,
VABufferType *type, unsigned int *size, unsigned int *count)
{ return VA_STATUS_ERROR_UNIMPLEMENTED; }
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