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[80.197.57.18]) by smtp.gmail.com with ESMTPSA id 205sm4571672ljj.47.2016.07.18.05.42.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Jul 2016 05:42:26 -0700 (PDT) From: Ricardo Ribalda Delgado To: Jonathan Corbet , Mauro Carvalho Chehab , Hans Verkuil , Markus Heiser , Laurent Pinchart , Helen Mae Koike Fornazier , Antti Palosaari , Philipp Zabel , Shuah Khan , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org Cc: Ricardo Ribalda Delgado Subject: [PATCH v4 05/12] [media] vivid: Add support for HSV formats Date: Mon, 18 Jul 2016 14:42:09 +0200 Message-Id: <1468845736-19651-6-git-send-email-ricardo.ribalda@gmail.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1468845736-19651-1-git-send-email-ricardo.ribalda@gmail.com> References: <1468845736-19651-1-git-send-email-ricardo.ribalda@gmail.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds support for V4L2_PIX_FMT_HSV24 and V4L2_PIX_FMT_HSV32. Signed-off-by: Ricardo Ribalda Delgado --- drivers/media/common/v4l2-tpg/v4l2-tpg-core.c | 93 +++++++++++++++++++++++-- drivers/media/platform/vivid/vivid-vid-common.c | 14 ++++ include/media/v4l2-tpg.h | 1 + 3 files changed, 104 insertions(+), 4 deletions(-) diff --git a/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c b/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c index 4d0c9ab408da..ec8f887a84e5 100644 --- a/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c +++ b/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c @@ -318,6 +318,10 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc) tpg->hmask[0] = ~1; tpg->color_enc = TGP_COLOR_ENC_YCBCR; break; + case V4L2_PIX_FMT_HSV24: + case V4L2_PIX_FMT_HSV32: + tpg->color_enc = TGP_COLOR_ENC_HSV; + break; default: return false; } @@ -351,6 +355,7 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc) break; case V4L2_PIX_FMT_RGB24: case V4L2_PIX_FMT_BGR24: + case V4L2_PIX_FMT_HSV24: tpg->twopixelsize[0] = 2 * 3; break; case V4L2_PIX_FMT_BGR666: @@ -361,6 +366,7 @@ bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc) case V4L2_PIX_FMT_ARGB32: case V4L2_PIX_FMT_ABGR32: case V4L2_PIX_FMT_YUV32: + case V4L2_PIX_FMT_HSV32: tpg->twopixelsize[0] = 2 * 4; break; case V4L2_PIX_FMT_NV12: @@ -490,6 +496,64 @@ static inline int linear_to_rec709(int v) return tpg_linear_to_rec709[v]; } +static void color_to_hsv(struct tpg_data *tpg, int r, int g, int b, + int *h, int *s, int *v) +{ + int max_rgb, min_rgb, diff_rgb; + int aux; + int third; + + r >>= 4; + g >>= 4; + b >>= 4; + + /* Value */ + max_rgb = max3(r, g, b); + *v = max_rgb; + if (!max_rgb) { + *h = 0; + *s = 0; + return; + } + + /* Saturation */ + min_rgb = min3(r, g, b); + diff_rgb = max_rgb - min_rgb; + aux = 255 * diff_rgb; + aux += max_rgb / 2; + aux /= max_rgb; + *s = aux; + if (!aux) { + *h = 0; + return; + } + + /* Hue */ + if (max_rgb == r) { + aux = g - b; + third = 0; + } else if (max_rgb == g) { + aux = b - r; + third = 60; + } else { + aux = r - g; + third = 120; + } + + aux *= 30; + aux += diff_rgb / 2; + aux /= diff_rgb; + aux += third; + + /* Clamp Hue */ + if (aux < 0) + aux += 180; + else if (aux > 180) + aux -= 180; + *h = aux; + +} + static void rgb2ycbcr(const int m[3][3], int r, int g, int b, int y_offset, int *y, int *cb, int *cr) { @@ -832,7 +896,19 @@ static void precalculate_color(struct tpg_data *tpg, int k) ycbcr_to_color(tpg, y, cb, cr, &r, &g, &b); } - if (tpg->color_enc == TGP_COLOR_ENC_YCBCR) { + switch (tpg->color_enc) { + case TGP_COLOR_ENC_HSV: + { + int h, s, v; + + color_to_hsv(tpg, r, g, b, &h, &s, &v); + tpg->colors[k][0] = h; + tpg->colors[k][1] = s; + tpg->colors[k][2] = v; + break; + } + case TGP_COLOR_ENC_YCBCR: + { /* Convert to YCbCr */ int y, cb, cr; @@ -866,7 +942,10 @@ static void precalculate_color(struct tpg_data *tpg, int k) tpg->colors[k][0] = y; tpg->colors[k][1] = cb; tpg->colors[k][2] = cr; - } else { + break; + } + case TGP_COLOR_ENC_RGB: + { if (tpg->real_quantization == V4L2_QUANTIZATION_LIM_RANGE) { r = (r * 219) / 255 + (16 << 4); g = (g * 219) / 255 + (16 << 4); @@ -916,6 +995,8 @@ static void precalculate_color(struct tpg_data *tpg, int k) tpg->colors[k][0] = r; tpg->colors[k][1] = g; tpg->colors[k][2] = b; + break; + } } } @@ -941,8 +1022,8 @@ static void gen_twopix(struct tpg_data *tpg, alpha = 0; if (color == TPG_COLOR_RANDOM) precalculate_color(tpg, color); - r_y = tpg->colors[color][0]; /* R or precalculated Y */ - g_u = tpg->colors[color][1]; /* G or precalculated U */ + r_y = tpg->colors[color][0]; /* R or precalculated Y, H */ + g_u = tpg->colors[color][1]; /* G or precalculated U, V */ b_v = tpg->colors[color][2]; /* B or precalculated V */ switch (tpg->fourcc) { @@ -1124,6 +1205,7 @@ static void gen_twopix(struct tpg_data *tpg, buf[0][offset + 1] = (g_u << 5) | b_v; break; case V4L2_PIX_FMT_RGB24: + case V4L2_PIX_FMT_HSV24: buf[0][offset] = r_y; buf[0][offset + 1] = g_u; buf[0][offset + 2] = b_v; @@ -1141,6 +1223,7 @@ static void gen_twopix(struct tpg_data *tpg, break; case V4L2_PIX_FMT_RGB32: case V4L2_PIX_FMT_XRGB32: + case V4L2_PIX_FMT_HSV32: alpha = 0; /* fall through */ case V4L2_PIX_FMT_YUV32: @@ -1897,6 +1980,8 @@ static const char *tpg_color_enc_str(enum tgp_color_enc color_enc) { switch (color_enc) { + case TGP_COLOR_ENC_HSV: + return "HSV"; case TGP_COLOR_ENC_YCBCR: return "Y'CbCr"; case TGP_COLOR_ENC_RGB: diff --git a/drivers/media/platform/vivid/vivid-vid-common.c b/drivers/media/platform/vivid/vivid-vid-common.c index f4c35ba5f070..20822b5111b3 100644 --- a/drivers/media/platform/vivid/vivid-vid-common.c +++ b/drivers/media/platform/vivid/vivid-vid-common.c @@ -445,6 +445,20 @@ struct vivid_fmt vivid_formats[] = { .planes = 1, .buffers = 1, }, + { + .fourcc = V4L2_PIX_FMT_HSV24, /* HSV 24bits */ + .vdownsampling = { 1 }, + .bit_depth = { 24 }, + .planes = 1, + .buffers = 1, + }, + { + .fourcc = V4L2_PIX_FMT_HSV32, /* HSV 32bits */ + .vdownsampling = { 1 }, + .bit_depth = { 32 }, + .planes = 1, + .buffers = 1, + }, /* Multiplanar formats */ diff --git a/include/media/v4l2-tpg.h b/include/media/v4l2-tpg.h index b4cb8f34cd87..4a40f9b79053 100644 --- a/include/media/v4l2-tpg.h +++ b/include/media/v4l2-tpg.h @@ -90,6 +90,7 @@ enum tpg_move_mode { enum tgp_color_enc { TGP_COLOR_ENC_RGB, TGP_COLOR_ENC_YCBCR, + TGP_COLOR_ENC_HSV, }; extern const char * const tpg_aspect_strings[];