From patchwork Thu Nov 9 21:03:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 13451736 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 704E7C4167D for ; Thu, 9 Nov 2023 21:04:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=zmfazedjgKqi0C0/PXe3uA4ryX1rUayN2u0zmfuQ+d0=; b=RBdjK08/yHlEfz ORRZbFCoU7koLavk1hpDMqucbpOKcC5Pib4DSnAqBeRDHBG9dfL5lWxBa/uLSgSdw1oeXPolxQwSs 4vFfB0VZJHncT95ITcObwnmPMC/N1ONRlppo4FMaLhJwoA+wWrVflrQJlXsuifupRcTXT0NrwSVg1 gOhB9j8w4I+cQ+/QKZftDDk3Wcr9bl+k8RU72VXoyzZ5saqU3smoAp0i6Yj7RNkzldqS7qRfZAHtX 8h7FrNhADGbTQkvDmhYw9s/LGxDIjmEWWIOB4/oMjAMSO+anb8ljpCvZJFBom6EqXXP2dfIDwB4bL s9ufBg0RpsG3sqCO2k3g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r1CC9-007E0X-1l; Thu, 09 Nov 2023 21:04:09 +0000 Received: from perceval.ideasonboard.com ([213.167.242.64]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1r1CBr-007Di2-1u; Thu, 09 Nov 2023 21:03:53 +0000 Received: from umang.jain (unknown [103.251.226.64]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id C66576EF; Thu, 9 Nov 2023 22:03:25 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1699563808; bh=sTZwjAPZQBasibelnMmyXY/yI6VlmvAZneMtzwqTaxY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EL37U8T9Nfm5C9Y/keayN8Tu1S23YpGln4X/CzuubejzVZs7RziSupsCOLSAjcWlW EC7PXjdmHHwiDURADP76eacFnbHMeTPSe39CcLwWcaAQeUiC5CAx4ZSwUE8hXXB9T/ +HCsRAcNN+66soZueNo+R5SiVxfOSszdJcEweGx4= From: Umang Jain To: linux-media@vger.kernel.org, kernel-list@raspberrypi.com, linux-kernel@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-staging@lists.linux.dev Cc: Dave Stevenson , Kieran Bingham , Laurent Pinchart , "Ricardo B . Marliere" , Dan Carpenter , Stefan Wahren , David Plowman , Umang Jain Subject: [PATCH v2 12/15] vc04_services: bcm2835-isp: Permit all sRGB colour spaces on ISP outputs Date: Thu, 9 Nov 2023 16:03:04 -0500 Message-ID: <20231109210309.638594-13-umang.jain@ideasonboard.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231109210309.638594-1-umang.jain@ideasonboard.com> References: <20231109210309.638594-1-umang.jain@ideasonboard.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231109_130351_802835_159A8D9F X-CRM114-Status: GOOD ( 14.27 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: David Plowman bcm2835-isp outputs actually support all colour spaces that are fundamentally sRGB underneath, regardless of whether an RGB or YUV output format is actually requested. Signed-off-by: David Plowman Signed-off-by: Umang Jain --- .../bcm2835-isp/bcm2835-isp-fmts.h | 45 ++++++++++--------- 1 file changed, 25 insertions(+), 20 deletions(-) diff --git a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h index 5c874cdd2fe7..30c14a44f399 100644 --- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h +++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h @@ -35,14 +35,19 @@ struct bcm2835_isp_fmt { #define V4L2_COLORSPACE_MASK_RAW V4L2_COLORSPACE_MASK(V4L2_COLORSPACE_RAW) /* - * The colour spaces we support for YUV outputs. SRGB features here because, - * once you assign the default transfer func and so on, it and JPEG effectively - * mean the same. + * All three colour spaces JPEG, SMPTE170M and REC709 are fundamentally sRGB + * underneath (as near as makes no difference to us), just with different YCbCr + * encodings. Therefore the ISP can generate sRGB on its main output and any of + * the others on its low resolution output. Applications should, when using both + * outputs, program the colour spaces on them to be the same, matching whatever + * is requested for the low resolution output, even if the main output is + * producing an RGB format. In turn this requires us to allow all these colour + * spaces for every YUV/RGB output format. */ -#define V4L2_COLORSPACE_MASK_YUV (V4L2_COLORSPACE_MASK_JPEG | \ - V4L2_COLORSPACE_MASK_SRGB | \ - V4L2_COLORSPACE_MASK_SMPTE170M | \ - V4L2_COLORSPACE_MASK_REC709) +#define V4L2_COLORSPACE_MASK_ALL_SRGB (V4L2_COLORSPACE_MASK_JPEG | \ + V4L2_COLORSPACE_MASK_SRGB | \ + V4L2_COLORSPACE_MASK_SMPTE170M | \ + V4L2_COLORSPACE_MASK_REC709) static const struct bcm2835_isp_fmt supported_formats[] = { { @@ -52,7 +57,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 64, .mmal_fmt = MMAL_ENCODING_I420, .size_multiplier_x2 = 3, - .colorspace_mask = V4L2_COLORSPACE_MASK_YUV, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_JPEG, .step_size = 2, }, { @@ -61,7 +66,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 64, .mmal_fmt = MMAL_ENCODING_YV12, .size_multiplier_x2 = 3, - .colorspace_mask = V4L2_COLORSPACE_MASK_YUV, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SMPTE170M, .step_size = 2, }, { @@ -70,7 +75,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 32, .mmal_fmt = MMAL_ENCODING_NV12, .size_multiplier_x2 = 3, - .colorspace_mask = V4L2_COLORSPACE_MASK_YUV, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SMPTE170M, .step_size = 2, }, { @@ -79,7 +84,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 32, .mmal_fmt = MMAL_ENCODING_NV21, .size_multiplier_x2 = 3, - .colorspace_mask = V4L2_COLORSPACE_MASK_YUV, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SMPTE170M, .step_size = 2, }, { @@ -88,7 +93,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 64, .mmal_fmt = MMAL_ENCODING_YUYV, .size_multiplier_x2 = 2, - .colorspace_mask = V4L2_COLORSPACE_MASK_YUV, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SMPTE170M, .step_size = 2, }, { @@ -97,7 +102,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 64, .mmal_fmt = MMAL_ENCODING_UYVY, .size_multiplier_x2 = 2, - .colorspace_mask = V4L2_COLORSPACE_MASK_YUV, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SMPTE170M, .step_size = 2, }, { @@ -106,7 +111,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 64, .mmal_fmt = MMAL_ENCODING_YVYU, .size_multiplier_x2 = 2, - .colorspace_mask = V4L2_COLORSPACE_MASK_YUV, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SMPTE170M, .step_size = 2, }, { @@ -115,7 +120,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 64, .mmal_fmt = MMAL_ENCODING_VYUY, .size_multiplier_x2 = 2, - .colorspace_mask = V4L2_COLORSPACE_MASK_YUV, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SMPTE170M, .step_size = 2, }, { @@ -125,7 +130,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 32, .mmal_fmt = MMAL_ENCODING_RGB24, .size_multiplier_x2 = 2, - .colorspace_mask = V4L2_COLORSPACE_MASK_SRGB, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SRGB, .step_size = 1, }, { @@ -134,7 +139,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 32, .mmal_fmt = MMAL_ENCODING_RGB16, .size_multiplier_x2 = 2, - .colorspace_mask = V4L2_COLORSPACE_MASK_SRGB, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SRGB, .step_size = 1, }, { @@ -143,7 +148,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 32, .mmal_fmt = MMAL_ENCODING_BGR24, .size_multiplier_x2 = 2, - .colorspace_mask = V4L2_COLORSPACE_MASK_SRGB, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SRGB, .step_size = 1, }, { @@ -152,7 +157,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 64, .mmal_fmt = MMAL_ENCODING_BGRA, .size_multiplier_x2 = 2, - .colorspace_mask = V4L2_COLORSPACE_MASK_SRGB, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SRGB, .step_size = 1, }, { @@ -161,7 +166,7 @@ static const struct bcm2835_isp_fmt supported_formats[] = { .bytesperline_align = 64, .mmal_fmt = MMAL_ENCODING_RGBA, .size_multiplier_x2 = 2, - .colorspace_mask = V4L2_COLORSPACE_MASK_SRGB, + .colorspace_mask = V4L2_COLORSPACE_MASK_ALL_SRGB, .colorspace_default = V4L2_COLORSPACE_SRGB, .step_size = 1, }, {