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[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@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
zero-colors
Ricardo Ribalda Delgado 2016-07-18 09:16:15 -03:00 committed by Mauro Carvalho Chehab
parent 5f3d32ec73
commit 429175e41f
7 changed files with 76 additions and 10 deletions
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25
drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
View File

@ -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,
@ -1928,6 +1935,7 @@ 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)
@ -2018,6 +2026,7 @@ 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);
}

1
drivers/media/platform/vivid/vivid-core.h
View File

@ -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;

25
drivers/media/platform/vivid/vivid-ctrls.c
View File

@ -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);
@ -778,6 +787,21 @@ 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",
@ -1454,6 +1478,7 @@ 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);
}

17
drivers/media/platform/vivid/vivid-vid-cap.c
View File

@ -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));

2
drivers/media/platform/vivid/vivid-vid-common.c
View File

@ -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;

1
drivers/media/platform/vivid/vivid-vid-out.c
View File

@ -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;

15
include/media/v4l2-tpg.h
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@ -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)