From: Kaaira Gupta <kgupta@es.iitr.ac.in>
To: Helen Koike <helen.koike@collabora.com>,
Shuah Khan <skhan@linuxfoundation.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
Kieran Bingham <kieran.bingham@ideasonboard.com>
Cc: Kaaira Gupta <kgupta@es.iitr.ac.in>
Subject: [PATCH v10 2/3] media: tpg: Add function to return colors' order of test image
Date: Sun, 5 Jul 2020 19:23:05 +0530 [thread overview]
Message-ID: <20200705135307.27564-3-kgupta@es.iitr.ac.in> (raw)
In-Reply-To: <20200705135307.27564-1-kgupta@es.iitr.ac.in>
Currently there is no method to know the correct order of the colors for
a test image generated by tpg. Write a function that returns a string of
colors' order given a tpg. It returns a NULL pointer in case of test
patterns which do not have a well defined colors' order. Hence add a
NULL check for text in tpg_gen_text().
Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Helen Koike <helen.koike@collabora.com>
---
drivers/media/common/v4l2-tpg/v4l2-tpg-core.c | 30 +++++++++++++++++--
include/media/tpg/v4l2-tpg.h | 1 +
2 files changed, 29 insertions(+), 2 deletions(-)
diff --git a/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c b/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
index dde22a4cbd6c..c46ddd902675 100644
--- a/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
+++ b/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
@@ -1959,12 +1959,14 @@ void tpg_gen_text(const struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2],
unsigned step = V4L2_FIELD_HAS_T_OR_B(tpg->field) ? 2 : 1;
unsigned div = step;
unsigned first = 0;
- unsigned len = strlen(text);
+ unsigned len;
unsigned p;
- if (font8x16 == NULL || basep == NULL)
+ if (font8x16 == NULL || basep == NULL || text == NULL)
return;
+ len = strlen(text);
+
/* Checks if it is possible to show string */
if (y + 16 >= tpg->compose.height || x + 8 >= tpg->compose.width)
return;
@@ -2006,6 +2008,30 @@ void tpg_gen_text(const struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2],
}
EXPORT_SYMBOL_GPL(tpg_gen_text);
+const char *tpg_g_color_order(const struct tpg_data *tpg)
+{
+ switch (tpg->pattern) {
+ case TPG_PAT_75_COLORBAR:
+ case TPG_PAT_100_COLORBAR:
+ case TPG_PAT_CSC_COLORBAR:
+ case TPG_PAT_100_HCOLORBAR:
+ return "white, yellow, cyan, green, magenta, red, blue, black";
+ case TPG_PAT_BLACK:
+ return "Black";
+ case TPG_PAT_WHITE:
+ return "White";
+ case TPG_PAT_RED:
+ return "Red";
+ case TPG_PAT_GREEN:
+ return "Green";
+ case TPG_PAT_BLUE:
+ return "Blue";
+ default:
+ return NULL;
+ }
+}
+EXPORT_SYMBOL_GPL(tpg_g_color_order);
+
void tpg_update_mv_step(struct tpg_data *tpg)
{
int factor = tpg->mv_hor_mode > TPG_MOVE_NONE ? -1 : 1;
diff --git a/include/media/tpg/v4l2-tpg.h b/include/media/tpg/v4l2-tpg.h
index 9749ed409856..0b0ddb87380e 100644
--- a/include/media/tpg/v4l2-tpg.h
+++ b/include/media/tpg/v4l2-tpg.h
@@ -252,6 +252,7 @@ void tpg_fillbuffer(struct tpg_data *tpg, v4l2_std_id std,
bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc);
void tpg_s_crop_compose(struct tpg_data *tpg, const struct v4l2_rect *crop,
const struct v4l2_rect *compose);
+const char *tpg_g_color_order(const struct tpg_data *tpg);
static inline void tpg_s_pattern(struct tpg_data *tpg, enum tpg_pattern pattern)
{
--
2.17.1
next prev parent reply other threads:[~2020-07-05 13:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-05 13:53 [PATCH v10 0/3] media: Add colors' order and other info over test image Kaaira Gupta
2020-07-05 13:53 ` [PATCH v10 1/3] media: tpg: change char argument to const char Kaaira Gupta
2020-07-05 13:53 ` Kaaira Gupta [this message]
2020-07-05 13:53 ` [PATCH v10 3/3] media: vimc: Add a control to display info on test image Kaaira Gupta
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