aboutsummaryrefslogtreecommitdiff
path: root/drivers/media
diff options
context:
space:
mode:
authorMagnus Damm <damm@igel.co.jp>2008-10-14 12:47:35 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-17 17:25:05 -0300
commitaeadb5d4e590ed0d678ab0bb5fe068160a49e79d (patch)
treec65312052e1bda694d97d4512451d27eb3610e13 /drivers/media
parentfca36bab973303fec01b367a5be644495e8b958d (diff)
V4L/DVB (9238): Add support for rgb565 pixel formats to vivi
This patch adds RGB565 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>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/video/vivi.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 2a6ebc126c0..2fddba6d5b3 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -139,6 +139,16 @@ static struct vivi_fmt formats[] = {
.fourcc = V4L2_PIX_FMT_UYVY,
.depth = 16,
},
+ {
+ .name = "RGB565 (LE)",
+ .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
+ .depth = 16,
+ },
+ {
+ .name = "RGB565 (BE)",
+ .fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
+ .depth = 16,
+ },
};
static struct vivi_fmt *get_format(struct v4l2_format *f)
@@ -301,6 +311,30 @@ static void gen_twopix(struct vivi_fh *fh, unsigned char *buf, int colorpos)
break;
}
break;
+ case V4L2_PIX_FMT_RGB565:
+ switch (color) {
+ case 0:
+ case 2:
+ *p = (g_u << 5) | b_v;
+ break;
+ case 1:
+ case 3:
+ *p = (r_y << 3) | (g_u >> 3);
+ break;
+ }
+ break;
+ case V4L2_PIX_FMT_RGB565X:
+ switch (color) {
+ case 0:
+ case 2:
+ *p = (r_y << 3) | (g_u >> 3);
+ break;
+ case 1:
+ case 3:
+ *p = (g_u << 5) | b_v;
+ break;
+ }
+ break;
}
}
}
@@ -778,6 +812,12 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
case V4L2_PIX_FMT_UYVY:
is_yuv = 1;
break;
+ case V4L2_PIX_FMT_RGB565:
+ case V4L2_PIX_FMT_RGB565X:
+ r >>= 3;
+ g >>= 2;
+ b >>= 3;
+ break;
}
if (is_yuv) {