From d405d1fd5e791b3ebc45dc980be2fce9ac0f3529 Mon Sep 17 00:00:00 2001 From: Jacopo Mondi Date: Mon, 13 Jul 2020 15:05:23 +0200 Subject: libcamera: utils: Add alignUp and alignDown functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add to libcamera utils library two functions to round up or down a value to an alignment and add a test in test/utils.cpp for the two new functions. Reviewed-by: Kieran Bingham Reviewed-by: Niklas Söderlund Reviewed-by: Laurent Pinchart Signed-off-by: Jacopo Mondi --- include/libcamera/internal/utils.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/libcamera/internal/utils.h b/include/libcamera/internal/utils.h index 8d026cc6..45cd6f12 100644 --- a/include/libcamera/internal/utils.h +++ b/include/libcamera/internal/utils.h @@ -200,6 +200,16 @@ details::StringSplitter split(const std::string &str, const std::string &delim); std::string libcameraBuildPath(); std::string libcameraSourcePath(); +constexpr unsigned int alignDown(unsigned int value, unsigned int alignment) +{ + return value / alignment * alignment; +} + +constexpr unsigned int alignUp(unsigned int value, unsigned int alignment) +{ + return (value + alignment - 1) / alignment * alignment; +} + } /* namespace utils */ } /* namespace libcamera */ -- cgit v1.2.1