From 38ca814e9723562da7b3a63f89662f801ca45614 Mon Sep 17 00:00:00 2001
From: Kieran Bingham <kieran.bingham@ideasonboard.com>
Date: Thu, 23 Jul 2020 11:19:38 +0100
Subject: libcamera: formats: add numPlanes helper
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Determine the number of planes used by a format by counting the number
of PixelFormatPlaneInfo entries with a valid entry.

Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
---
 include/libcamera/internal/formats.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include')

diff --git a/include/libcamera/internal/formats.h b/include/libcamera/internal/formats.h
index b8e47491..51a8a6b8 100644
--- a/include/libcamera/internal/formats.h
+++ b/include/libcamera/internal/formats.h
@@ -46,6 +46,8 @@ public:
 	unsigned int frameSize(const Size &size,
 			       const std::array<unsigned int, 3> &strides) const;
 
+	unsigned int numPlanes() const;
+
 	/* \todo Add support for non-contiguous memory planes */
 	const char *name;
 	PixelFormat format;
-- 
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