From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Add a 2x2 checker patterns and 1x1 and 2x2 red/blue checker patterns.
Useful for testing 4:2:2 and 4:2:0 formats.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
drivers/media/platform/vivid/vivid-tpg.c | 26 +++++++++++++++++++++++---
drivers/media/platform/vivid/vivid-tpg.h | 3 +++
2 files changed, 26 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/vivid/vivid-tpg.c b/drivers/media/platform/vivid/vivid-tpg.c
index 8fa2150..e2af384 100644
--- a/drivers/media/platform/vivid/vivid-tpg.c
+++ b/drivers/media/platform/vivid/vivid-tpg.c
@@ -35,7 +35,10 @@ const char * const tpg_pattern_strings[] = {
"100% Green",
"100% Blue",
"16x16 Checkers",
+ "2x2 Checkers",
"1x1 Checkers",
+ "2x2 Red/Green Checkers",
+ "1x1 Red/Green Checkers",
"Alternating Hor Lines",
"Alternating Vert Lines",
"One Pixel Wide Cross",
@@ -744,11 +747,14 @@ static void gen_twopix(struct tpg_data *tpg,
}
/* Return how many pattern lines are used by the current pattern. */
-static unsigned tpg_get_pat_lines(struct tpg_data *tpg)
+static unsigned tpg_get_pat_lines(const struct tpg_data *tpg)
{
switch (tpg->pattern) {
case TPG_PAT_CHECKERS_16X16:
+ case TPG_PAT_CHECKERS_2X2:
case TPG_PAT_CHECKERS_1X1:
+ case TPG_PAT_COLOR_CHECKERS_2X2:
+ case TPG_PAT_COLOR_CHECKERS_1X1:
case TPG_PAT_ALTERNATING_HLINES:
case TPG_PAT_CROSS_1_PIXEL:
case TPG_PAT_CROSS_2_PIXELS:
@@ -763,14 +769,18 @@ static unsigned tpg_get_pat_lines(struct tpg_data *tpg)
}
/* Which pattern line should be used for the given frame line. */
-static unsigned tpg_get_pat_line(struct tpg_data *tpg, unsigned line)
+static unsigned tpg_get_pat_line(const struct tpg_data *tpg, unsigned line)
{
switch (tpg->pattern) {
case TPG_PAT_CHECKERS_16X16:
return (line >> 4) & 1;
case TPG_PAT_CHECKERS_1X1:
+ case TPG_PAT_COLOR_CHECKERS_1X1:
case TPG_PAT_ALTERNATING_HLINES:
return line & 1;
+ case TPG_PAT_CHECKERS_2X2:
+ case TPG_PAT_COLOR_CHECKERS_2X2:
+ return (line & 2) >> 1;
case TPG_PAT_100_COLORSQUARES:
case TPG_PAT_100_HCOLORBAR:
return (line * 8) / tpg->src_height;
@@ -789,7 +799,8 @@ static unsigned tpg_get_pat_line(struct tpg_data *tpg, unsigned line)
* Which color should be used for the given pattern line and X coordinate.
* Note: x is in the range 0 to 2 * tpg->src_width.
*/
-static enum tpg_color tpg_get_color(struct tpg_data *tpg, unsigned pat_line, unsigned x)
+static enum tpg_color tpg_get_color(const struct tpg_data *tpg,
+ unsigned pat_line, unsigned x)
{
/* Maximum number of bars are TPG_COLOR_MAX - otherwise, the input print code
should be modified */
@@ -836,6 +847,15 @@ static enum tpg_color tpg_get_color(struct tpg_data *tpg, unsigned pat_line, uns
case TPG_PAT_CHECKERS_1X1:
return ((x & 1) ^ (pat_line & 1)) ?
TPG_COLOR_100_WHITE : TPG_COLOR_100_BLACK;
+ case TPG_PAT_COLOR_CHECKERS_1X1:
+ return ((x & 1) ^ (pat_line & 1)) ?
+ TPG_COLOR_100_RED : TPG_COLOR_100_BLUE;
+ case TPG_PAT_CHECKERS_2X2:
+ return (((x >> 1) & 1) ^ (pat_line & 1)) ?
+ TPG_COLOR_100_WHITE : TPG_COLOR_100_BLACK;
+ case TPG_PAT_COLOR_CHECKERS_2X2:
+ return (((x >> 1) & 1) ^ (pat_line & 1)) ?
+ TPG_COLOR_100_RED : TPG_COLOR_100_BLUE;
case TPG_PAT_ALTERNATING_HLINES:
return pat_line ? TPG_COLOR_100_WHITE : TPG_COLOR_100_BLACK;
case TPG_PAT_ALTERNATING_VLINES:
diff --git a/drivers/media/platform/vivid/vivid-tpg.h b/drivers/media/platform/vivid/vivid-tpg.h
index 8100425..e796a54 100644
--- a/drivers/media/platform/vivid/vivid-tpg.h
+++ b/drivers/media/platform/vivid/vivid-tpg.h
@@ -41,7 +41,10 @@ enum tpg_pattern {
TPG_PAT_GREEN,
TPG_PAT_BLUE,
TPG_PAT_CHECKERS_16X16,
+ TPG_PAT_CHECKERS_2X2,
TPG_PAT_CHECKERS_1X1,
+ TPG_PAT_COLOR_CHECKERS_2X2,
+ TPG_PAT_COLOR_CHECKERS_1X1,
TPG_PAT_ALTERNATING_HLINES,
TPG_PAT_ALTERNATING_VLINES,
TPG_PAT_CROSS_1_PIXEL,
--
2.1.4
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