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libcamera: formats: Add planeSize() helpers to PixelFormatInfo

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Add two helpers functions to the PixelFormatInfo class to compute the
byte size of a given plane, taking the frame size, the stride, the
alignment constraints and the vertical subsampling into account.

Use the new functions through the code base to replace manual
implementations.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
This commit is contained in:
Laurent Pinchart 2021-09-01 23:22:40 +03:00
parent e85978ef5f
commit 94cbaa381a
5 changed files with 74 additions and 34 deletions
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4
include/libcamera/internal/formats.h
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@ -41,6 +41,10 @@ public:
unsigned int stride(unsigned int width, unsigned int plane,
unsigned int align = 1) const;
unsigned int planeSize(const Size &size, unsigned int plane,
unsigned int align = 1) const;
unsigned int planeSize(unsigned int height, unsigned int plane,
unsigned int stride) const;
unsigned int frameSize(const Size &size, unsigned int align = 1) const;
unsigned int frameSize(const Size &size,
const std::array<unsigned int, 3> &strides) const;