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Fri, 7 Jun 2024 08:32:54 -0500 Received: from DLEE103.ent.ti.com (157.170.170.33) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Fri, 7 Jun 2024 08:32:54 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DLEE103.ent.ti.com (157.170.170.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Fri, 7 Jun 2024 08:32:54 -0500 Received: from localhost (ti.dhcp.ti.com [172.24.227.95] (may be forged)) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 457DWrnp119514; Fri, 7 Jun 2024 08:32:54 -0500 From: Devarsh Thakkar To: , , , , , , CC: , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v13 12/13] media: imagination: Round to closest multiple for cropping region Date: Fri, 7 Jun 2024 19:02:53 +0530 Message-ID: <20240607133253.3559339-1-devarsht@ti.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20240607131900.3535250-1-devarsht@ti.com> References: <20240607131900.3535250-1-devarsht@ti.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-LSpam-Score: -3.6 (---) X-LSpam-Report: No, score=-3.6 required=5.0 tests=ARC_SIGNED=0.001,ARC_VALID=-0.1,BAYES_00=-1.9,DKIMWL_WL_HIGH=-1,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,DMARC_PASS=-0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,SPF_HELO_NONE=0.001,SPF_PASS=-0.001,T_PDS_OTHER_BAD_TLD=0.01 autolearn=unavailable autolearn_force=no If neither of the flags to round down (V4L2_SEL_FLAG_LE) or round up (V4L2_SEL_FLAG_GE) are specified by the user, then round to nearest multiple of requested value while updating the crop rectangle coordinates. Use the rounding macro which gives preference to rounding down in case two nearest values (high and low) are possible to raise the probability of cropping rectangle falling inside the bound region. This complies with the VIDIOC_G_SELECTION, VIDIOC_S_SELECTION ioctl description as documented in v4l uapi [1] which specifies that driver should choose crop rectangle as close as possible if no flags are passed by user-space, as quoted below : "``0`` - The driver can adjust the rectangle size freely and shall choose a crop/compose rectangle as close as possible to the requested one." Link: https://www.kernel.org/doc/Documentation/userspace-api/media/v4l/vidioc-g-selection.rst [1] Signed-off-by: Devarsh Thakkar --- V9->V13: No change V8: Update commit message with specification reference V1->V7 (No change, patch introduced in V7) --- drivers/media/platform/imagination/e5010-jpeg-enc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/imagination/e5010-jpeg-enc.c b/drivers/media/platform/imagination/e5010-jpeg-enc.c index 4b6fbe99d5ff..ea96b1bc5315 100644 --- a/drivers/media/platform/imagination/e5010-jpeg-enc.c +++ b/drivers/media/platform/imagination/e5010-jpeg-enc.c @@ -517,10 +517,10 @@ static int e5010_s_selection(struct file *file, void *fh, struct v4l2_selection switch (s->flags) { case 0: - s->r.width = round_down(s->r.width, queue->fmt->frmsize.step_width); - s->r.height = round_down(s->r.height, queue->fmt->frmsize.step_height); - s->r.left = round_down(s->r.left, queue->fmt->frmsize.step_width); - s->r.top = round_down(s->r.top, 2); + s->r.width = round_closest_down(s->r.width, queue->fmt->frmsize.step_width); + s->r.height = round_closest_down(s->r.height, queue->fmt->frmsize.step_height); + s->r.left = round_closest_down(s->r.left, queue->fmt->frmsize.step_width); + s->r.top = round_closest_down(s->r.top, 2); if (s->r.left + s->r.width > queue->width) s->r.width = round_down(s->r.width + s->r.left - queue->width,