From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D25E6C00140 for ; Mon, 15 Aug 2022 18:49:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243859AbiHOSt2 (ORCPT ); Mon, 15 Aug 2022 14:49:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38460 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243350AbiHOSnt (ORCPT ); Mon, 15 Aug 2022 14:43:49 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 944602BB07; Mon, 15 Aug 2022 11:27:12 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 31AC060EEB; Mon, 15 Aug 2022 18:27:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2965FC433D6; Mon, 15 Aug 2022 18:27:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660588031; bh=PKc2T3fY74EMGaI7u7Ln8IptTYkyGTfoHS2qJcdxyHY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Dz4046sqwLvf8mABX5eY63Yp+4/M7kPH9k+u2TXw68CnKmwHS/ErM0463bqx4Yyhk wU6aB6EJkPt2VNOhnJac7/59ck5Zc8zgdlJ31AoIaZu+iWo05R5QvLipW7MgShLfSe Ze5jjNE9SCbqvcTjyNO9cHBnhbF96ZgpqT3OEa00= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ming Qian , Mirela Rabulea , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 5.15 274/779] media: imx-jpeg: Identify and handle precision correctly Date: Mon, 15 Aug 2022 19:58:38 +0200 Message-Id: <20220815180349.020193615@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180337.130757997@linuxfoundation.org> References: <20220815180337.130757997@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ming Qian [ Upstream commit bec0a3a67389ede106d0661a007edf832878d8b2 ] The decoder will save the precision that was detected from jpeg header and use it later, when choosing the pixel format and also calculate bytesperline according to precision. The 12bit jpeg is not supported yet, but driver shouldn't led to serious problem if user enqueue a 12 bit jpeg. And the 12bit jpeg is supported by hardware, driver may support it later. [hverkuil: document the new precision field] Signed-off-by: Ming Qian Reviewed-by: Mirela Rabulea Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/imx-jpeg/mxc-jpeg.c | 37 +++++++++++++++------- drivers/media/platform/imx-jpeg/mxc-jpeg.h | 2 ++ 2 files changed, 27 insertions(+), 12 deletions(-) diff --git a/drivers/media/platform/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/imx-jpeg/mxc-jpeg.c index 5064a994a42e..718de999987e 100644 --- a/drivers/media/platform/imx-jpeg/mxc-jpeg.c +++ b/drivers/media/platform/imx-jpeg/mxc-jpeg.c @@ -82,6 +82,7 @@ static const struct mxc_jpeg_fmt mxc_formats[] = { .h_align = 3, .v_align = 3, .flags = MXC_JPEG_FMT_TYPE_RAW, + .precision = 8, }, { .name = "ARGB", /* ARGBARGB packed format */ @@ -93,6 +94,7 @@ static const struct mxc_jpeg_fmt mxc_formats[] = { .h_align = 3, .v_align = 3, .flags = MXC_JPEG_FMT_TYPE_RAW, + .precision = 8, }, { .name = "YUV420", /* 1st plane = Y, 2nd plane = UV */ @@ -104,6 +106,7 @@ static const struct mxc_jpeg_fmt mxc_formats[] = { .h_align = 4, .v_align = 4, .flags = MXC_JPEG_FMT_TYPE_RAW, + .precision = 8, }, { .name = "YUV422", /* YUYV */ @@ -115,6 +118,7 @@ static const struct mxc_jpeg_fmt mxc_formats[] = { .h_align = 4, .v_align = 3, .flags = MXC_JPEG_FMT_TYPE_RAW, + .precision = 8, }, { .name = "YUV444", /* YUVYUV */ @@ -126,6 +130,7 @@ static const struct mxc_jpeg_fmt mxc_formats[] = { .h_align = 3, .v_align = 3, .flags = MXC_JPEG_FMT_TYPE_RAW, + .precision = 8, }, { .name = "Gray", /* Gray (Y8/Y12) or Single Comp */ @@ -137,6 +142,7 @@ static const struct mxc_jpeg_fmt mxc_formats[] = { .h_align = 3, .v_align = 3, .flags = MXC_JPEG_FMT_TYPE_RAW, + .precision = 8, }, }; @@ -1166,14 +1172,17 @@ static u32 mxc_jpeg_get_image_format(struct device *dev, for (i = 0; i < MXC_JPEG_NUM_FORMATS; i++) if (mxc_formats[i].subsampling == header->frame.subsampling && - mxc_formats[i].nc == header->frame.num_components) { + mxc_formats[i].nc == header->frame.num_components && + mxc_formats[i].precision == header->frame.precision) { fourcc = mxc_formats[i].fourcc; break; } if (fourcc == 0) { - dev_err(dev, "Could not identify image format nc=%d, subsampling=%d\n", + dev_err(dev, + "Could not identify image format nc=%d, subsampling=%d, precision=%d\n", header->frame.num_components, - header->frame.subsampling); + header->frame.subsampling, + header->frame.precision); return fourcc; } /* @@ -1199,18 +1208,22 @@ static void mxc_jpeg_bytesperline(struct mxc_jpeg_q_data *q, /* bytesperline unused for compressed formats */ q->bytesperline[0] = 0; q->bytesperline[1] = 0; - } else if (q->fmt->fourcc == V4L2_PIX_FMT_NV12M) { + } else if (q->fmt->subsampling == V4L2_JPEG_CHROMA_SUBSAMPLING_420) { /* When the image format is planar the bytesperline value * applies to the first plane and is divided by the same factor * as the width field for the other planes */ - q->bytesperline[0] = q->w * (precision / 8) * - (q->fmt->depth / 8); + q->bytesperline[0] = q->w * DIV_ROUND_UP(precision, 8); q->bytesperline[1] = q->bytesperline[0]; + } else if (q->fmt->subsampling == V4L2_JPEG_CHROMA_SUBSAMPLING_422) { + q->bytesperline[0] = q->w * DIV_ROUND_UP(precision, 8) * 2; + q->bytesperline[1] = 0; + } else if (q->fmt->subsampling == V4L2_JPEG_CHROMA_SUBSAMPLING_444) { + q->bytesperline[0] = q->w * DIV_ROUND_UP(precision, 8) * q->fmt->nc; + q->bytesperline[1] = 0; } else { - /* single plane formats */ - q->bytesperline[0] = q->w * (precision / 8) * - (q->fmt->depth / 8); + /* grayscale */ + q->bytesperline[0] = q->w * DIV_ROUND_UP(precision, 8); q->bytesperline[1] = 0; } } @@ -1344,7 +1357,7 @@ static int mxc_jpeg_parse(struct mxc_jpeg_ctx *ctx, struct vb2_buffer *vb) (fourcc >> 24) & 0xff); /* setup bytesperline/sizeimage for capture queue */ - mxc_jpeg_bytesperline(q_data_cap, header.frame.precision); + mxc_jpeg_bytesperline(q_data_cap, q_data_cap->fmt->precision); mxc_jpeg_sizeimage(q_data_cap); /* @@ -1500,7 +1513,7 @@ static void mxc_jpeg_set_default_params(struct mxc_jpeg_ctx *ctx) q[i]->h = MXC_JPEG_DEFAULT_HEIGHT; q[i]->w_adjusted = MXC_JPEG_DEFAULT_WIDTH; q[i]->h_adjusted = MXC_JPEG_DEFAULT_HEIGHT; - mxc_jpeg_bytesperline(q[i], 8); + mxc_jpeg_bytesperline(q[i], q[i]->fmt->precision); mxc_jpeg_sizeimage(q[i]); } } @@ -1642,7 +1655,7 @@ static int mxc_jpeg_try_fmt(struct v4l2_format *f, const struct mxc_jpeg_fmt *fm } /* calculate bytesperline & sizeimage into the tmp_q */ - mxc_jpeg_bytesperline(&tmp_q, 8); + mxc_jpeg_bytesperline(&tmp_q, fmt->precision); mxc_jpeg_sizeimage(&tmp_q); /* adjust user format according to our calculations */ diff --git a/drivers/media/platform/imx-jpeg/mxc-jpeg.h b/drivers/media/platform/imx-jpeg/mxc-jpeg.h index f53f004ba851..2b4b30d01e51 100644 --- a/drivers/media/platform/imx-jpeg/mxc-jpeg.h +++ b/drivers/media/platform/imx-jpeg/mxc-jpeg.h @@ -49,6 +49,7 @@ enum mxc_jpeg_mode { * @h_align: horizontal alignment order (align to 2^h_align) * @v_align: vertical alignment order (align to 2^v_align) * @flags: flags describing format applicability + * @precision: jpeg sample precision */ struct mxc_jpeg_fmt { const char *name; @@ -60,6 +61,7 @@ struct mxc_jpeg_fmt { int h_align; int v_align; u32 flags; + u8 precision; }; struct mxc_jpeg_desc { -- 2.35.1