From 51f309683510ced24b1b3886f0935a0ab32d1e0b Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 7 Mar 2015 14:57:50 -0300 Subject: [PATCH] [media] vivid-tpg: add support for V4L2_PIX_FMT_GREY Add monochrome support to the TPG. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/vivid/vivid-tpg.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/vivid/vivid-tpg.c b/drivers/media/platform/vivid/vivid-tpg.c index 79dc3101eb86..ccb4a6be26c1 100644 --- a/drivers/media/platform/vivid/vivid-tpg.c +++ b/drivers/media/platform/vivid/vivid-tpg.c @@ -199,6 +199,7 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc) case V4L2_PIX_FMT_XBGR32: case V4L2_PIX_FMT_ARGB32: case V4L2_PIX_FMT_ABGR32: + case V4L2_PIX_FMT_GREY: tpg->is_yuv = false; break; case V4L2_PIX_FMT_YUV420M: @@ -279,6 +280,9 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc) case V4L2_PIX_FMT_ABGR32: tpg->twopixelsize[0] = 2 * 4; break; + case V4L2_PIX_FMT_GREY: + tpg->twopixelsize[0] = 2; + break; case V4L2_PIX_FMT_NV12: case V4L2_PIX_FMT_NV21: case V4L2_PIX_FMT_NV12M: @@ -598,7 +602,7 @@ static void precalculate_color(struct tpg_data *tpg, int k) g <<= 4; b <<= 4; } - if (tpg->qual == TPG_QUAL_GRAY) { + if (tpg->qual == TPG_QUAL_GRAY || tpg->fourcc == V4L2_PIX_FMT_GREY) { /* Rec. 709 Luma function */ /* (0.2126, 0.7152, 0.0722) * (255 * 256) */ r = g = b = (13879 * r + 46688 * g + 4713 * b) >> 16; @@ -739,6 +743,9 @@ static void gen_twopix(struct tpg_data *tpg, b_v = tpg->colors[color][2]; /* B or precalculated V */ switch (tpg->fourcc) { + case V4L2_PIX_FMT_GREY: + buf[0][offset] = r_y; + break; case V4L2_PIX_FMT_YUV422P: case V4L2_PIX_FMT_YUV420: case V4L2_PIX_FMT_YUV420M: -- 2.39.5