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Date: Mon, 18 Jul 2016 14:42:16 +0200
From: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
To: Jonathan Corbet <corbet@....net>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Hans Verkuil <hverkuil@...all.nl>,
Markus Heiser <markus.heiser@...marIT.de>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Helen Mae Koike Fornazier <helen.koike@...labora.co.uk>,
Antti Palosaari <crope@....fi>,
Philipp Zabel <p.zabel@...gutronix.de>,
Shuah Khan <shuahkh@....samsung.com>,
linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-media@...r.kernel.org
Cc: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Subject: [PATCH v4 12/12] [media] vivid: Add support for HSV encoding
Support HSV encoding. Most of the logic is replicated from ycbcr_enc.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
---
drivers/media/common/v4l2-tpg/v4l2-tpg-core.c | 25 +++++++++++++++++--------
drivers/media/platform/vivid/vivid-core.h | 1 +
drivers/media/platform/vivid/vivid-ctrls.c | 25 +++++++++++++++++++++++++
drivers/media/platform/vivid/vivid-vid-cap.c | 17 +++++++++++++++--
drivers/media/platform/vivid/vivid-vid-common.c | 2 ++
drivers/media/platform/vivid/vivid-vid-out.c | 1 +
include/media/v4l2-tpg.h | 15 +++++++++++++++
7 files changed, 76 insertions(+), 10 deletions(-)
diff --git a/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c b/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
index 7f284c591f25..2341d8ee2601 100644
--- a/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
+++ b/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
@@ -504,6 +504,7 @@ static void color_to_hsv(struct tpg_data *tpg, int r, int g, int b,
int max_rgb, min_rgb, diff_rgb;
int aux;
int third;
+ int third_size;
r >>= 4;
g >>= 4;
@@ -530,30 +531,36 @@ static void color_to_hsv(struct tpg_data *tpg, int r, int g, int b,
return;
}
+ third_size = (tpg->real_hsv_enc == V4L2_HSV_ENC_180) ? 60 : 85;
+
/* Hue */
if (max_rgb == r) {
aux = g - b;
third = 0;
} else if (max_rgb == g) {
aux = b - r;
- third = 60;
+ third = third_size;
} else {
aux = r - g;
- third = 120;
+ third = third_size * 2;
}
- aux *= 30;
+ aux *= third_size / 2;
aux += diff_rgb / 2;
aux /= diff_rgb;
aux += third;
/* Clamp Hue */
- if (aux < 0)
- aux += 180;
- else if (aux > 180)
- aux -= 180;
- *h = aux;
+ if (tpg->real_hsv_enc == V4L2_HSV_ENC_180) {
+ if (aux < 0)
+ aux += 180;
+ else if (aux > 180)
+ aux -= 180;
+ } else {
+ aux = aux & 0xff;
+ }
+ *h = aux;
}
static void rgb2ycbcr(const int m[3][3], int r, int g, int b,
@@ -1927,6 +1934,7 @@ static void tpg_recalc(struct tpg_data *tpg)
tpg->recalc_lines = true;
tpg->real_xfer_func = tpg->xfer_func;
tpg->real_ycbcr_enc = tpg->ycbcr_enc;
+ tpg->real_hsv_enc = tpg->hsv_enc;
tpg->real_quantization = tpg->quantization;
if (tpg->xfer_func == V4L2_XFER_FUNC_DEFAULT)
@@ -2017,6 +2025,7 @@ void tpg_log_status(struct tpg_data *tpg)
pr_info("tpg colorspace: %d\n", tpg->colorspace);
pr_info("tpg transfer function: %d/%d\n", tpg->xfer_func, tpg->real_xfer_func);
pr_info("tpg Y'CbCr encoding: %d/%d\n", tpg->ycbcr_enc, tpg->real_ycbcr_enc);
+ pr_info("tpg HSV encoding: %d/%d\n", tpg->hsv_enc, tpg->real_hsv_enc);
pr_info("tpg quantization: %d/%d\n", tpg->quantization, tpg->real_quantization);
pr_info("tpg RGB range: %d/%d\n", tpg->rgb_range, tpg->real_rgb_range);
}
diff --git a/drivers/media/platform/vivid/vivid-core.h b/drivers/media/platform/vivid/vivid-core.h
index b59b49456d45..5cdf95bdc4d1 100644
--- a/drivers/media/platform/vivid/vivid-core.h
+++ b/drivers/media/platform/vivid/vivid-core.h
@@ -346,6 +346,7 @@ struct vivid_dev {
struct v4l2_dv_timings dv_timings_out;
u32 colorspace_out;
u32 ycbcr_enc_out;
+ u32 hsv_enc_out;
u32 quantization_out;
u32 xfer_func_out;
u32 service_set_out;
diff --git a/drivers/media/platform/vivid/vivid-ctrls.c b/drivers/media/platform/vivid/vivid-ctrls.c
index b98089c95ef5..2e1c0b6d6842 100644
--- a/drivers/media/platform/vivid/vivid-ctrls.c
+++ b/drivers/media/platform/vivid/vivid-ctrls.c
@@ -79,6 +79,7 @@
#define VIVID_CID_MAX_EDID_BLOCKS (VIVID_CID_VIVID_BASE + 40)
#define VIVID_CID_PERCENTAGE_FILL (VIVID_CID_VIVID_BASE + 41)
#define VIVID_CID_REDUCED_FPS (VIVID_CID_VIVID_BASE + 42)
+#define VIVID_CID_HSV_ENC (VIVID_CID_VIVID_BASE + 43)
#define VIVID_CID_STD_SIGNAL_MODE (VIVID_CID_VIVID_BASE + 60)
#define VIVID_CID_STANDARD (VIVID_CID_VIVID_BASE + 61)
@@ -378,6 +379,14 @@ static int vivid_vid_cap_s_ctrl(struct v4l2_ctrl *ctrl)
vivid_send_source_change(dev, HDMI);
vivid_send_source_change(dev, WEBCAM);
break;
+ case VIVID_CID_HSV_ENC:
+ tpg_s_hsv_enc(&dev->tpg, ctrl->val ? V4L2_HSV_ENC_256 :
+ V4L2_HSV_ENC_180);
+ vivid_send_source_change(dev, TV);
+ vivid_send_source_change(dev, SVID);
+ vivid_send_source_change(dev, HDMI);
+ vivid_send_source_change(dev, WEBCAM);
+ break;
case VIVID_CID_QUANTIZATION:
tpg_s_quantization(&dev->tpg, ctrl->val);
vivid_send_source_change(dev, TV);
@@ -777,6 +786,21 @@ static const struct v4l2_ctrl_config vivid_ctrl_ycbcr_enc = {
.qmenu = vivid_ctrl_ycbcr_enc_strings,
};
+static const char * const vivid_ctrl_hsv_enc_strings[] = {
+ "Hue 0-179",
+ "Hue 0-256",
+ NULL,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_hsv_enc = {
+ .ops = &vivid_vid_cap_ctrl_ops,
+ .id = VIVID_CID_HSV_ENC,
+ .name = "HSV Encoding",
+ .type = V4L2_CTRL_TYPE_MENU,
+ .max = ARRAY_SIZE(vivid_ctrl_hsv_enc_strings) - 2,
+ .qmenu = vivid_ctrl_hsv_enc_strings,
+};
+
static const char * const vivid_ctrl_quantization_strings[] = {
"Default",
"Full Range",
@@ -1453,6 +1477,7 @@ int vivid_create_controls(struct vivid_dev *dev, bool show_ccs_cap,
&vivid_ctrl_colorspace, NULL);
v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_xfer_func, NULL);
v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_ycbcr_enc, NULL);
+ v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_hsv_enc, NULL);
v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_quantization, NULL);
v4l2_ctrl_new_custom(hdl_vid_cap, &vivid_ctrl_alpha_mode, NULL);
}
diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c b/drivers/media/platform/vivid/vivid-vid-cap.c
index d404a7ce33a4..fbe1cc8b8a95 100644
--- a/drivers/media/platform/vivid/vivid-vid-cap.c
+++ b/drivers/media/platform/vivid/vivid-vid-cap.c
@@ -510,6 +510,13 @@ static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
return dev->ycbcr_enc_out;
}
+static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev)
+{
+ if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
+ return tpg_g_hsv_enc(&dev->tpg);
+ return dev->hsv_enc_out;
+}
+
static unsigned vivid_quantization_cap(struct vivid_dev *dev)
{
if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
@@ -530,7 +537,10 @@ int vivid_g_fmt_vid_cap(struct file *file, void *priv,
mp->pixelformat = dev->fmt_cap->fourcc;
mp->colorspace = vivid_colorspace_cap(dev);
mp->xfer_func = vivid_xfer_func_cap(dev);
- mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
+ if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV)
+ mp->hsv_enc = vivid_hsv_enc_cap(dev);
+ else
+ mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
mp->quantization = vivid_quantization_cap(dev);
mp->num_planes = dev->fmt_cap->buffers;
for (p = 0; p < mp->num_planes; p++) {
@@ -618,7 +628,10 @@ int vivid_try_fmt_vid_cap(struct file *file, void *priv,
memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
}
mp->colorspace = vivid_colorspace_cap(dev);
- mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
+ if (fmt->color_enc == TGP_COLOR_ENC_HSV)
+ mp->hsv_enc = vivid_hsv_enc_cap(dev);
+ else
+ mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
mp->xfer_func = vivid_xfer_func_cap(dev);
mp->quantization = vivid_quantization_cap(dev);
memset(mp->reserved, 0, sizeof(mp->reserved));
diff --git a/drivers/media/platform/vivid/vivid-vid-common.c b/drivers/media/platform/vivid/vivid-vid-common.c
index e0df44151461..3d003fb913ed 100644
--- a/drivers/media/platform/vivid/vivid-vid-common.c
+++ b/drivers/media/platform/vivid/vivid-vid-common.c
@@ -630,6 +630,7 @@ void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt)
mp->field = pix->field;
mp->colorspace = pix->colorspace;
mp->xfer_func = pix->xfer_func;
+ /* Also copies hsv_enc */
mp->ycbcr_enc = pix->ycbcr_enc;
mp->quantization = pix->quantization;
mp->num_planes = 1;
@@ -659,6 +660,7 @@ int fmt_sp2mp_func(struct file *file, void *priv,
pix->field = mp->field;
pix->colorspace = mp->colorspace;
pix->xfer_func = mp->xfer_func;
+ /* Also copies hsv_enc */
pix->ycbcr_enc = mp->ycbcr_enc;
pix->quantization = mp->quantization;
pix->sizeimage = ppix->sizeimage;
diff --git a/drivers/media/platform/vivid/vivid-vid-out.c b/drivers/media/platform/vivid/vivid-vid-out.c
index dd609eea4753..7ba52ee98371 100644
--- a/drivers/media/platform/vivid/vivid-vid-out.c
+++ b/drivers/media/platform/vivid/vivid-vid-out.c
@@ -256,6 +256,7 @@ void vivid_update_format_out(struct vivid_dev *dev)
}
dev->xfer_func_out = V4L2_XFER_FUNC_DEFAULT;
dev->ycbcr_enc_out = V4L2_YCBCR_ENC_DEFAULT;
+ dev->hsv_enc_out = V4L2_HSV_ENC_180;
dev->quantization_out = V4L2_QUANTIZATION_DEFAULT;
dev->compose_out = dev->sink_rect;
dev->compose_bounds_out = dev->sink_rect;
diff --git a/include/media/v4l2-tpg.h b/include/media/v4l2-tpg.h
index 8abed92317e8..13e49d85cae3 100644
--- a/include/media/v4l2-tpg.h
+++ b/include/media/v4l2-tpg.h
@@ -130,6 +130,7 @@ struct tpg_data {
u32 colorspace;
u32 xfer_func;
u32 ycbcr_enc;
+ u32 hsv_enc;
/*
* Stores the actual transfer function, i.e. will never be
* V4L2_XFER_FUNC_DEFAULT.
@@ -139,6 +140,7 @@ struct tpg_data {
* Stores the actual Y'CbCr encoding, i.e. will never be
* V4L2_YCBCR_ENC_DEFAULT.
*/
+ u32 real_hsv_enc;
u32 real_ycbcr_enc;
u32 quantization;
/*
@@ -341,6 +343,19 @@ static inline u32 tpg_g_ycbcr_enc(const struct tpg_data *tpg)
return tpg->ycbcr_enc;
}
+static inline void tpg_s_hsv_enc(struct tpg_data *tpg, u32 hsv_enc)
+{
+ if (tpg->hsv_enc == hsv_enc)
+ return;
+ tpg->hsv_enc = hsv_enc;
+ tpg->recalc_colors = true;
+}
+
+static inline u32 tpg_g_hsv_enc(const struct tpg_data *tpg)
+{
+ return tpg->hsv_enc;
+}
+
static inline void tpg_s_xfer_func(struct tpg_data *tpg, u32 xfer_func)
{
if (tpg->xfer_func == xfer_func)
--
2.8.1
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