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From: Benoit Parrot <bparrot@ti.com>
To: Hans Verkuil <hverkuil@xs4all.nl>,
	Prabhakar Lad <prabhakar.csengg@gmail.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Kukjin Kim <kgene@kernel.org>,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>,
	Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: <linux-media@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Benoit Parrot <bparrot@ti.com>
Subject: [Patch 1/2] media: v4l2-rect.h: add enclosed rectangle helper
Date: Thu, 28 May 2020 08:26:04 -0500
Message-ID: <20200528132605.18339-2-bparrot@ti.com> (raw)
In-Reply-To: <20200528132605.18339-1-bparrot@ti.com>

Add a helper function to check if one rectangle is enclosed inside
another.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
---
 include/media/v4l2-rect.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/media/v4l2-rect.h b/include/media/v4l2-rect.h
index 8800a640c224..bd587d0c0dc3 100644
--- a/include/media/v4l2-rect.h
+++ b/include/media/v4l2-rect.h
@@ -184,4 +184,24 @@ static inline bool v4l2_rect_overlap(const struct v4l2_rect *r1,
 	return true;
 }
 
+/**
+ * v4l2_rect_enclosed() - is r1 enclosed in r2?
+ * @r1: rectangle.
+ * @r2: rectangle.
+ *
+ * Returns true if @r1 is enclosed in @r2.
+ */
+static inline bool v4l2_rect_enclosed(struct v4l2_rect *r1,
+				      struct v4l2_rect *r2)
+{
+	if (r1->left < r2->left || r1->top < r2->top)
+		return false;
+	if (r1->left + r1->width > r2->left + r2->width)
+		return false;
+	if (r1->top + r1->height > r2->top + r2->height)
+		return false;
+
+	return true;
+}
+
 #endif
-- 
2.17.1


  reply	other threads:[~2020-05-28 13:26 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-28 13:26 [Patch 0/2] " Benoit Parrot
2020-05-28 13:26 ` Benoit Parrot [this message]
2020-05-29 11:57   ` [Patch 1/2] " Andrzej Pietrasiewicz
2020-05-30 11:51   ` Lad, Prabhakar
2020-05-28 13:26 ` [Patch 2/2] media: use v4l2_rect_enclosed helper Benoit Parrot
2020-05-29 11:59   ` Andrzej Pietrasiewicz
2020-05-30 11:53   ` Lad, Prabhakar

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