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/*
* Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
*
* 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 <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <drm_fourcc.h>
#include <linux/videodev2.h>
#include "utils.h"
#include "video.h"
static inline unsigned int video_v4l2_format(bool tiled_format)
{
return tiled_format ? V4L2_PIX_FMT_MB32_NV12 : V4L2_PIX_FMT_NV12;
}
static struct video_format formats[] = {
{
.description = "NV12 YUV",
.v4l2_format = V4L2_PIX_FMT_NV12,
.v4l2_buffers_count = 1,
.drm_format = DRM_FORMAT_NV12,
.drm_modifier = DRM_FORMAT_MOD_NONE,
.drm_planes_count = 2,
.bpp = 16,
},
{
.description = "MB32-tiled NV12 YUV",
.v4l2_format = V4L2_PIX_FMT_MB32_NV12,
.v4l2_buffers_count = 1,
.drm_format = DRM_FORMAT_NV12,
.drm_modifier = DRM_FORMAT_MOD_ALLWINNER_MB32_TILED,
.drm_planes_count = 2,
.bpp = 16
},
};
static unsigned int formats_count = sizeof(formats) / sizeof(formats[0]);
struct video_format *video_format_find(bool tiled_format)
{
unsigned int pixelformat;
unsigned int i;
pixelformat = video_v4l2_format(tiled_format);
for (i = 0; i < formats_count; i++)
if (formats[i].v4l2_format == pixelformat)
return &formats[i];
return NULL;
}
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