mirror of
https://github.com/torvalds/linux.git
synced 2024-12-06 19:11:31 +00:00
V4L/DVB (9239): Add support for rgb555 pixel formats to vivi
This patch adds RGB555 pixel format support to the vivi driver. Both little endian and big endian versions are added. The driver follows the RGB pixel format described in Table 2-2 of the V4L2 API spec, _not_ the older BGR interpretation described in Table 2-1. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
parent
aeadb5d4e5
commit
def5239320
@ -149,6 +149,16 @@ static struct vivi_fmt formats[] = {
|
||||
.fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
|
||||
.depth = 16,
|
||||
},
|
||||
{
|
||||
.name = "RGB555 (LE)",
|
||||
.fourcc = V4L2_PIX_FMT_RGB555, /* gggbbbbb arrrrrgg */
|
||||
.depth = 16,
|
||||
},
|
||||
{
|
||||
.name = "RGB555 (BE)",
|
||||
.fourcc = V4L2_PIX_FMT_RGB555X, /* arrrrrgg gggbbbbb */
|
||||
.depth = 16,
|
||||
},
|
||||
};
|
||||
|
||||
static struct vivi_fmt *get_format(struct v4l2_format *f)
|
||||
@ -335,6 +345,30 @@ static void gen_twopix(struct vivi_fh *fh, unsigned char *buf, int colorpos)
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case V4L2_PIX_FMT_RGB555:
|
||||
switch (color) {
|
||||
case 0:
|
||||
case 2:
|
||||
*p = (g_u << 5) | b_v;
|
||||
break;
|
||||
case 1:
|
||||
case 3:
|
||||
*p = (r_y << 2) | (g_u >> 3);
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case V4L2_PIX_FMT_RGB555X:
|
||||
switch (color) {
|
||||
case 0:
|
||||
case 2:
|
||||
*p = (r_y << 2) | (g_u >> 3);
|
||||
break;
|
||||
case 1:
|
||||
case 3:
|
||||
*p = (g_u << 5) | b_v;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -818,6 +852,12 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
|
||||
g >>= 2;
|
||||
b >>= 3;
|
||||
break;
|
||||
case V4L2_PIX_FMT_RGB555:
|
||||
case V4L2_PIX_FMT_RGB555X:
|
||||
r >>= 3;
|
||||
g >>= 3;
|
||||
b >>= 3;
|
||||
break;
|
||||
}
|
||||
|
||||
if (is_yuv) {
|
||||
|
Loading…
Reference in New Issue
Block a user