[PATCH v2 4/6] [media] vivid: code refactor for color representation

Ricardo Ribalda Delgado
2016-07-15T16:14:34Z

Replace is_yuv with color_representation. Which can be used by HSV
formats.

This change should ease the review of the following patches.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
---
drivers/media/common/v4l2-tpg/v4l2-tpg-core.c | 44 ++++++++++++++-------
drivers/media/platform/vivid/vivid-core.h | 2 +-
drivers/media/platform/vivid/vivid-vid-common.c | 52 ++++++++++++-------------
include/media/v4l2-tpg.h | 7 +++-
4 files changed, 63 insertions(+), 42 deletions(-)

diff --git a/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c b/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
index cf1dadd0be9e..acf0e6854832 100644
--- a/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
+++ b/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
@@ -237,13 +237,13 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
case V4L2_PIX_FMT_GREY:
case V4L2_PIX_FMT_Y16:
case V4L2_PIX_FMT_Y16_BE:
- tpg->is_yuv = false;
+ tpg->color_representation = TGP_COLOR_REPRESENTATION_RGB;
break;
case V4L2_PIX_FMT_YUV444:
case V4L2_PIX_FMT_YUV555:
case V4L2_PIX_FMT_YUV565:
case V4L2_PIX_FMT_YUV32:
- tpg->is_yuv = true;
+ tpg->color_representation = TGP_COLOR_REPRESENTATION_YUV;
break;
case V4L2_PIX_FMT_YUV420M:
case V4L2_PIX_FMT_YVU420M:
@@ -256,7 +256,7 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
tpg->hdownsampling[1] = 2;
tpg->hdownsampling[2] = 2;
tpg->planes = 3;
- tpg->is_yuv = true;
+ tpg->color_representation = TGP_COLOR_REPRESENTATION_YUV;
break;
case V4L2_PIX_FMT_YUV422M:
case V4L2_PIX_FMT_YVU422M:
@@ -268,7 +268,7 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
tpg->hdownsampling[1] = 2;
tpg->hdownsampling[2] = 2;
tpg->planes = 3;
- tpg->is_yuv = true;
+ tpg->color_representation = TGP_COLOR_REPRESENTATION_YUV;
break;
case V4L2_PIX_FMT_NV16M:
case V4L2_PIX_FMT_NV61M:
@@ -280,7 +280,7 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
tpg->hdownsampling[1] = 1;
tpg->hmask[1] = ~1;
tpg->planes = 2;
- tpg->is_yuv = true;
+ tpg->color_representation = TGP_COLOR_REPRESENTATION_YUV;
break;
case V4L2_PIX_FMT_NV12M:
case V4L2_PIX_FMT_NV21M:
@@ -292,7 +292,7 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
tpg->hdownsampling[1] = 1;
tpg->hmask[1] = ~1;
tpg->planes = 2;
- tpg->is_yuv = true;
+ tpg->color_representation = TGP_COLOR_REPRESENTATION_YUV;
break;
case V4L2_PIX_FMT_YUV444M:
case V4L2_PIX_FMT_YVU444M:
@@ -302,21 +302,21 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc)
tpg->vdownsampling[2] = 1;
tpg->hdownsampling[1] = 1;
tpg->hdownsampling[2] = 1;
- tpg->is_yuv = true;
+ tpg->color_representation = TGP_COLOR_REPRESENTATION_YUV;
break;
case V4L2_PIX_FMT_NV24:
case V4L2_PIX_FMT_NV42:
tpg->vdownsampling[1] = 1;
tpg->hdownsampling[1] = 1;
tpg->planes = 2;
- tpg->is_yuv = true;
+ tpg->color_representation = TGP_COLOR_REPRESENTATION_YUV;
break;
case V4L2_PIX_FMT_YUYV:
case V4L2_PIX_FMT_UYVY:
case V4L2_PIX_FMT_YVYU:
case V4L2_PIX_FMT_VYUY:
tpg->hmask[0] = ~1;
- tpg->is_yuv = true;
+ tpg->color_representation = TGP_COLOR_REPRESENTATION_YUV;
break;
default:
return false;
@@ -820,7 +820,7 @@ static void precalculate_color(struct tpg_data *tpg, int k)

cb = (128 << 4) + (tmp_cb * tpg->contrast * tpg->saturation) / (128 * 128);
cr = (128 << 4) + (tmp_cr * tpg->contrast * tpg->saturation) / (128 * 128);
- if (tpg->is_yuv) {
+ if (tpg->color_representation == TGP_COLOR_REPRESENTATION_YUV) {
tpg->colors[k][0] = clamp(y >> 4, 1, 254);
tpg->colors[k][1] = clamp(cb >> 4, 1, 254);
tpg->colors[k][2] = clamp(cr >> 4, 1, 254);
@@ -829,7 +829,7 @@ static void precalculate_color(struct tpg_data *tpg, int k)
ycbcr_to_color(tpg, y, cb, cr, &r, &g, &b);
}

- if (tpg->is_yuv) {
+ if (tpg->color_representation == TGP_COLOR_REPRESENTATION_YUV) {
/* Convert to YCbCr */
int y, cb, cr;

@@ -1842,7 +1842,9 @@ static void tpg_recalc(struct tpg_data *tpg)

if (tpg->quantization == V4L2_QUANTIZATION_DEFAULT)
tpg->real_quantization =
- V4L2_MAP_QUANTIZATION_DEFAULT(!tpg->is_yuv,
+ V4L2_MAP_QUANTIZATION_DEFAULT(
+ tpg->color_representation ==
+ TGP_COLOR_REPRESENTATION_RGB,
tpg->colorspace, tpg->real_ycbcr_enc);

tpg_precalculate_colors(tpg);
@@ -1889,11 +1891,25 @@ static int tpg_pattern_avg(const struct tpg_data *tpg,
return -1;
}

+static const char *tpg_color_representation_str(enum tgp_color_representation
+ color_representation)
+{
+ switch (color_representation) {
+
+ case TGP_COLOR_REPRESENTATION_YUV:
+ return "YCbCr";
+ case TGP_COLOR_REPRESENTATION_RGB:
+ default:
+ return "RGB";
+
+ }
+}
+
void tpg_log_status(struct tpg_data *tpg)
{
pr_info("tpg source WxH: %ux%u (%s)\n",
- tpg->src_width, tpg->src_height,
- tpg->is_yuv ? "YCbCr" : "RGB");
+ tpg->src_width, tpg->src_height,
+ tpg_color_representation_str(tpg->color_representation));
pr_info("tpg field: %u\n", tpg->field);
pr_info("tpg crop: %ux%u@%dx%d\n", tpg->crop.width, tpg->crop.height,
tpg->crop.left, tpg->crop.top);
diff --git a/drivers/media/platform/vivid/vivid-core.h b/drivers/media/platform/vivid/vivid-core.h
index a7daa40d0a49..191ba679ad65 100644
--- a/drivers/media/platform/vivid/vivid-core.h
+++ b/drivers/media/platform/vivid/vivid-core.h
@@ -80,7 +80,7 @@ extern unsigned vivid_debug;

struct vivid_fmt {
u32 fourcc; /* v4l2 format id */
- bool is_yuv;
+ enum tgp_color_representation color_representation;
bool can_do_overlay;
u8 vdownsampling[TPG_MAX_PLANES];
u32 alpha_mask;
diff --git a/drivers/media/platform/vivid/vivid-vid-common.c b/drivers/media/platform/vivid/vivid-vid-common.c
index fcda3ae4e6b0..314799111cf7 100644
--- a/drivers/media/platform/vivid/vivid-vid-common.c
+++ b/drivers/media/platform/vivid/vivid-vid-common.c
@@ -48,7 +48,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YUYV,
.vdownsampling = { 1 },
.bit_depth = { 16 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 1,
.buffers = 1,
.data_offset = { PLANE0_DATA_OFFSET },
@@ -57,7 +57,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_UYVY,
.vdownsampling = { 1 },
.bit_depth = { 16 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 1,
.buffers = 1,
},
@@ -65,7 +65,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YVYU,
.vdownsampling = { 1 },
.bit_depth = { 16 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 1,
.buffers = 1,
},
@@ -73,7 +73,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_VYUY,
.vdownsampling = { 1 },
.bit_depth = { 16 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 1,
.buffers = 1,
},
@@ -81,7 +81,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YUV422P,
.vdownsampling = { 1, 1, 1 },
.bit_depth = { 8, 4, 4 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 3,
.buffers = 1,
},
@@ -89,7 +89,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YUV420,
.vdownsampling = { 1, 2, 2 },
.bit_depth = { 8, 4, 4 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 3,
.buffers = 1,
},
@@ -97,7 +97,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YVU420,
.vdownsampling = { 1, 2, 2 },
.bit_depth = { 8, 4, 4 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 3,
.buffers = 1,
},
@@ -105,7 +105,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_NV12,
.vdownsampling = { 1, 2 },
.bit_depth = { 8, 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 2,
.buffers = 1,
},
@@ -113,7 +113,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_NV21,
.vdownsampling = { 1, 2 },
.bit_depth = { 8, 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 2,
.buffers = 1,
},
@@ -121,7 +121,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_NV16,
.vdownsampling = { 1, 1 },
.bit_depth = { 8, 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 2,
.buffers = 1,
},
@@ -129,7 +129,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_NV61,
.vdownsampling = { 1, 1 },
.bit_depth = { 8, 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 2,
.buffers = 1,
},
@@ -137,7 +137,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_NV24,
.vdownsampling = { 1, 1 },
.bit_depth = { 8, 16 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 2,
.buffers = 1,
},
@@ -145,7 +145,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_NV42,
.vdownsampling = { 1, 1 },
.bit_depth = { 8, 16 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 2,
.buffers = 1,
},
@@ -184,7 +184,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_GREY,
.vdownsampling = { 1 },
.bit_depth = { 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 1,
.buffers = 1,
},
@@ -192,7 +192,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_Y16,
.vdownsampling = { 1 },
.bit_depth = { 16 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 1,
.buffers = 1,
},
@@ -200,7 +200,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_Y16_BE,
.vdownsampling = { 1 },
.bit_depth = { 16 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 1,
.buffers = 1,
},
@@ -452,7 +452,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_NV16M,
.vdownsampling = { 1, 1 },
.bit_depth = { 8, 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 2,
.buffers = 2,
.data_offset = { PLANE0_DATA_OFFSET, 0 },
@@ -461,7 +461,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_NV61M,
.vdownsampling = { 1, 1 },
.bit_depth = { 8, 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 2,
.buffers = 2,
.data_offset = { 0, PLANE0_DATA_OFFSET },
@@ -470,7 +470,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YUV420M,
.vdownsampling = { 1, 2, 2 },
.bit_depth = { 8, 4, 4 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 3,
.buffers = 3,
},
@@ -478,7 +478,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YVU420M,
.vdownsampling = { 1, 2, 2 },
.bit_depth = { 8, 4, 4 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 3,
.buffers = 3,
},
@@ -486,7 +486,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_NV12M,
.vdownsampling = { 1, 2 },
.bit_depth = { 8, 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 2,
.buffers = 2,
},
@@ -494,7 +494,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_NV21M,
.vdownsampling = { 1, 2 },
.bit_depth = { 8, 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 2,
.buffers = 2,
},
@@ -502,7 +502,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YUV422M,
.vdownsampling = { 1, 1, 1 },
.bit_depth = { 8, 4, 4 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 3,
.buffers = 3,
},
@@ -510,7 +510,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YVU422M,
.vdownsampling = { 1, 1, 1 },
.bit_depth = { 8, 4, 4 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 3,
.buffers = 3,
},
@@ -518,7 +518,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YUV444M,
.vdownsampling = { 1, 1, 1 },
.bit_depth = { 8, 8, 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 3,
.buffers = 3,
},
@@ -526,7 +526,7 @@ struct vivid_fmt vivid_formats[] = {
.fourcc = V4L2_PIX_FMT_YVU444M,
.vdownsampling = { 1, 1, 1 },
.bit_depth = { 8, 8, 8 },
- .is_yuv = true,
+ .color_representation = TGP_COLOR_REPRESENTATION_YUV,
.planes = 3,
.buffers = 3,
},
diff --git a/include/media/v4l2-tpg.h b/include/media/v4l2-tpg.h
index 329bebfa930c..13ea42bb9530 100644
--- a/include/media/v4l2-tpg.h
+++ b/include/media/v4l2-tpg.h
@@ -87,6 +87,11 @@ enum tpg_move_mode {
TPG_MOVE_POS_FAST,
};

+enum tgp_color_representation {
+ TGP_COLOR_REPRESENTATION_RGB,
+ TGP_COLOR_REPRESENTATION_YUV,
+};
+
extern const char * const tpg_aspect_strings[];

#define TPG_MAX_PLANES 3
@@ -119,7 +124,7 @@ struct tpg_data {
u8 saturation;
s16 hue;
u32 fourcc;
- bool is_yuv;
+ enum tgp_color_representation color_representation;
u32 colorspace;
u32 xfer_func;
u32 ycbcr_enc;
--
2.8.1