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authorMagnus Damm <damm@igel.co.jp>2008-10-14 12:47:43 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-17 17:25:08 -0300
commitdef52393205cbd22b0b4a59096db2a0dcc72cd0a (patch)
tree7a6194c4771c010591ff051c189bc95c51df2022
parentaeadb5d4e590ed0d678ab0bb5fe068160a49e79d (diff)
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>
-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 2fddba6d5b3..7d7e51def46 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -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) {