[media] vivid: add new checkboard patterns

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@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/platform/vivid/vivid-tpg.c b/drivers/media/platform/vivid/vivid-tpg.c
index f4e9108..8f45568 100644 (file)
--- 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 (file)
--- 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,