From patchwork Fri Jul 3 17:10:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dafna Hirschfeld X-Patchwork-Id: 11642375 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DED7F912 for ; Fri, 3 Jul 2020 17:10:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CC112214D8 for ; Fri, 3 Jul 2020 17:10:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726966AbgGCRKc (ORCPT ); Fri, 3 Jul 2020 13:10:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39566 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726718AbgGCRKb (ORCPT ); Fri, 3 Jul 2020 13:10:31 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4BB89C061794 for ; Fri, 3 Jul 2020 10:10:31 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: dafna) with ESMTPSA id A77682A65C0 From: Dafna Hirschfeld To: linux-media@vger.kernel.org, laurent.pinchart@ideasonboard.com Cc: dafna.hirschfeld@collabora.com, helen.koike@collabora.com, ezequiel@collabora.com, hverkuil@xs4all.nl, kernel@collabora.com, dafna3@gmail.com, sakari.ailus@linux.intel.com, linux-rockchip@lists.infradead.org, mchehab@kernel.org, tfiga@chromium.org Subject: [PATCH v5 3/7] media: vivid: Add support to the CSC API Date: Fri, 3 Jul 2020 19:10:15 +0200 Message-Id: <20200703171019.19270-4-dafna.hirschfeld@collabora.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200703171019.19270-1-dafna.hirschfeld@collabora.com> References: <20200703171019.19270-1-dafna.hirschfeld@collabora.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The CSC API (Colorspace conversion) allows userspace to try to configure the ycbcr/hsv_enc function and the quantization for capture devices. This patch adds support to the CSC API in vivid. Using the CSC API, userspace is allowed to do the following: - Set the ycbcr_enc function for YUV formats. - Set the hsv_enc function for HSV formats - Set the quantization for YUV and RGB formats. - Set the xfer_func. - Set the colorspace. Signed-off-by: Dafna Hirschfeld --- .../media/test-drivers/vivid/vivid-vid-cap.c | 74 +++++++++++++++++-- .../test-drivers/vivid/vivid-vid-common.c | 24 ++++++ 2 files changed, 92 insertions(+), 6 deletions(-) diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.c b/drivers/media/test-drivers/vivid/vivid-vid-cap.c index e94beef008c8..8916def70ffe 100644 --- a/drivers/media/test-drivers/vivid/vivid-vid-cap.c +++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c @@ -549,6 +549,45 @@ int vivid_g_fmt_vid_cap(struct file *file, void *priv, return 0; } +static bool vivid_is_colorspace_valid(__u32 colorspace) +{ + if (colorspace > V4L2_COLORSPACE_DEFAULT && + colorspace <= V4L2_COLORSPACE_DCI_P3) + return true; + return false; +} + +static bool vivid_is_hsv_enc_valid(__u8 hsv_enc) +{ + if (hsv_enc == V4L2_HSV_ENC_180 || hsv_enc == V4L2_HSV_ENC_256) + return true; + return false; +} + +static bool vivid_is_ycbcr_enc_valid(__u8 ycbcr_enc) +{ + /* V4L2_YCBCR_ENC_SMPTE240M is the last ycbcr_enc enum */ + if (ycbcr_enc && ycbcr_enc <= V4L2_YCBCR_ENC_SMPTE240M) + return true; + return false; +} + +static bool vivid_is_quant_valid(__u8 quantization) +{ + if (quantization == V4L2_QUANTIZATION_FULL_RANGE || + quantization == V4L2_QUANTIZATION_LIM_RANGE) + return true; + return false; +} + +static bool vivid_is_xfer_func_valid(__u32 xfer_func) +{ + if (xfer_func > V4L2_XFER_FUNC_DEFAULT && + xfer_func <= V4L2_XFER_FUNC_SMPTE2084) + return true; + return false; +} + int vivid_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { @@ -560,6 +599,7 @@ int vivid_try_fmt_vid_cap(struct file *file, void *priv, unsigned factor = 1; unsigned w, h; unsigned p; + bool user_set_csc = !!(mp->flags & V4L2_PIX_FMT_FLAG_SET_CSC); fmt = vivid_get_format(dev, mp->pixelformat); if (!fmt) { @@ -633,13 +673,26 @@ int vivid_try_fmt_vid_cap(struct file *file, void *priv, (fmt->bit_depth[p] / fmt->vdownsampling[p])) / (fmt->bit_depth[0] / fmt->vdownsampling[0]); - mp->colorspace = vivid_colorspace_cap(dev); - if (fmt->color_enc == TGP_COLOR_ENC_HSV) - mp->hsv_enc = vivid_hsv_enc_cap(dev); - else + if (!user_set_csc || !vivid_is_colorspace_valid(mp->colorspace)) + mp->colorspace = vivid_colorspace_cap(dev); + if (fmt->color_enc == TGP_COLOR_ENC_HSV) { + if (!user_set_csc || !vivid_is_hsv_enc_valid(mp->hsv_enc)) + mp->hsv_enc = vivid_hsv_enc_cap(dev); + } else if (fmt->color_enc == TGP_COLOR_ENC_YCBCR) { + if (!user_set_csc || !vivid_is_ycbcr_enc_valid(mp->ycbcr_enc)) + mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev); + } else { mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev); - mp->xfer_func = vivid_xfer_func_cap(dev); - mp->quantization = vivid_quantization_cap(dev); + } + if (!user_set_csc || !vivid_is_xfer_func_valid(mp->xfer_func)) + mp->xfer_func = vivid_xfer_func_cap(dev); + if (fmt->color_enc == TGP_COLOR_ENC_YCBCR || + fmt->color_enc == TGP_COLOR_ENC_RGB) { + if (!user_set_csc || !vivid_is_quant_valid(mp->quantization)) + mp->quantization = vivid_quantization_cap(dev); + } else { + mp->quantization = vivid_quantization_cap(dev); + } memset(mp->reserved, 0, sizeof(mp->reserved)); return 0; } @@ -769,6 +822,15 @@ int vivid_s_fmt_vid_cap(struct file *file, void *priv, if (vivid_is_sdtv_cap(dev)) dev->tv_field_cap = mp->field; tpg_update_mv_step(&dev->tpg); + dev->tpg.colorspace = mp->colorspace; + dev->tpg.quantization = mp->quantization; + if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_YCBCR) + dev->tpg.ycbcr_enc = mp->ycbcr_enc; + else + dev->tpg.hsv_enc = mp->hsv_enc; + dev->tpg.quantization = mp->quantization; + dev->tpg.xfer_func = mp->xfer_func; + return 0; } diff --git a/drivers/media/test-drivers/vivid/vivid-vid-common.c b/drivers/media/test-drivers/vivid/vivid-vid-common.c index 76b0be670ebb..5cab9b2a74bd 100644 --- a/drivers/media/test-drivers/vivid/vivid-vid-common.c +++ b/drivers/media/test-drivers/vivid/vivid-vid-common.c @@ -920,6 +920,30 @@ int vivid_enum_fmt_vid(struct file *file, void *priv, fmt = &vivid_formats[f->index]; f->pixelformat = fmt->fourcc; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && + f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + return 0; + /* + * For capture devices, we support the CSC API. + * We allow userspace to: + * 1. set the ycbcr_enc on yuv format + * 2. set the hsv_enc on hsv format + * 3. set the quantization on yuv and rgb formats + * 4. set the colorspace + * 5. set the xfer_func + */ + if (fmt->color_enc == TGP_COLOR_ENC_YCBCR) { + f->flags |= V4L2_FMT_FLAG_CSC_YCBCR_ENC; + f->flags |= V4L2_FMT_FLAG_CSC_QUANTIZATION; + } else if (fmt->color_enc == TGP_COLOR_ENC_HSV) { + f->flags |= V4L2_FMT_FLAG_CSC_HSV_ENC; + } else if (fmt->color_enc == TGP_COLOR_ENC_RGB) { + f->flags |= V4L2_FMT_FLAG_CSC_QUANTIZATION; + } + f->flags |= V4L2_FMT_FLAG_CSC_COLORSPACE; + f->flags |= V4L2_FMT_FLAG_CSC_XFER_FUNC; + return 0; }