[PATCH v3 1/3] libcamera: Add rectangle two-point constructor

[Harvey Yang]

From: Yudhistira Erlandinata <yerlandinata at chromium.org>

Add a Rectangle constructor that accepts two points:
topLeft and bottomRight.

Signed-off-by: Yudhistira Erlandinata <yerlandinata at chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang at chromium.org>
---
 include/libcamera/geometry.h |  2 ++
 src/libcamera/geometry.cpp   | 14 ++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/include/libcamera/geometry.h b/include/libcamera/geometry.h
index 3e6f0f5d7..dc56f180f 100644
--- a/include/libcamera/geometry.h
+++ b/include/libcamera/geometry.h
@@ -262,6 +262,8 @@ public:
 	{
 	}
 
+	constexpr Rectangle(const Point &topLeft, const Point &bottomRight);
+
 	int x;
 	int y;
 	unsigned int width;
diff --git a/src/libcamera/geometry.cpp b/src/libcamera/geometry.cpp
index 000151364..029b8dad2 100644
--- a/src/libcamera/geometry.cpp
+++ b/src/libcamera/geometry.cpp
@@ -629,6 +629,20 @@ std::ostream &operator<<(std::ostream &out, const SizeRange &sr)
  * \param[in] size The desired Rectangle size
  */
 
+/**
+ * \fn Rectangle::Rectangle(const Point &topLeft, const Point &bottomRight)
+ * \brief Construct a Rectangle with the two given points
+ * \param[in] topLeft The top-left corner
+ * \param[in] bottomRight The bottom-right corner
+ */
+constexpr Rectangle::Rectangle(const Point &topLeft, const Point &bottomRight)
+	: x(topLeft.x), y(topLeft.y),
+	  width(bottomRight.x - x),
+	  height(bottomRight.y - y)
+{
+	ASSERT(bottomRight.x >= x && bottomRight.y >= y);
+}
+
 /**
  * \var Rectangle::x
  * \brief The horizontal coordinate of the rectangle's top-left corner
-- 
2.46.0.469.g59c65b2a67-goog