diff options
author | bunnei <bunneidev@gmail.com> | 2020-11-29 10:41:06 +0100 |
---|---|---|
committer | GitHub <noreply@github.com> | 2020-11-29 10:41:06 +0100 |
commit | 63b3b25715cd1c1a8b196f3cbdf73fc7873f444c (patch) | |
tree | 9e8f9e6d7884c8291d6236025c4e2234bb9b8d95 /src/common | |
parent | Merge pull request #4998 from Morph1984/bioshock-patch (diff) | |
parent | common: Add Common::DivCeil and Common::DivCeilLog2 (diff) | |
download | yuzu-63b3b25715cd1c1a8b196f3cbdf73fc7873f444c.tar yuzu-63b3b25715cd1c1a8b196f3cbdf73fc7873f444c.tar.gz yuzu-63b3b25715cd1c1a8b196f3cbdf73fc7873f444c.tar.bz2 yuzu-63b3b25715cd1c1a8b196f3cbdf73fc7873f444c.tar.lz yuzu-63b3b25715cd1c1a8b196f3cbdf73fc7873f444c.tar.xz yuzu-63b3b25715cd1c1a8b196f3cbdf73fc7873f444c.tar.zst yuzu-63b3b25715cd1c1a8b196f3cbdf73fc7873f444c.zip |
Diffstat (limited to 'src/common')
-rw-r--r-- | src/common/CMakeLists.txt | 1 | ||||
-rw-r--r-- | src/common/div_ceil.h | 26 |
2 files changed, 27 insertions, 0 deletions
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt index d20e6c3b5..56c7e21f5 100644 --- a/src/common/CMakeLists.txt +++ b/src/common/CMakeLists.txt @@ -112,6 +112,7 @@ add_library(common STATIC common_paths.h common_types.h concepts.h + div_ceil.h dynamic_library.cpp dynamic_library.h fiber.cpp diff --git a/src/common/div_ceil.h b/src/common/div_ceil.h new file mode 100644 index 000000000..6b2c48f91 --- /dev/null +++ b/src/common/div_ceil.h @@ -0,0 +1,26 @@ +// Copyright 2020 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <cstddef> +#include <type_traits> + +namespace Common { + +/// Ceiled integer division. +template <typename N, typename D> +requires std::is_integral_v<N>&& std::is_unsigned_v<D>[[nodiscard]] constexpr auto DivCeil( + N number, D divisor) { + return (static_cast<D>(number) + divisor - 1) / divisor; +} + +/// Ceiled integer division with logarithmic divisor in base 2 +template <typename N, typename D> +requires std::is_integral_v<N>&& std::is_unsigned_v<D>[[nodiscard]] constexpr auto DivCeilLog2( + N value, D alignment_log2) { + return (static_cast<D>(value) + (D(1) << alignment_log2) - 1) >> alignment_log2; +} + +} // namespace Common |