345e73f2fe
Instead of storing all block width, height and depths in their shifted form: block_width = 1U << block_shift; Store them like they are provided by the emulated hardware (their block_shift form). This way we can avoid doing the costly Common::AlignUp operation to align texture sizes and drop CPU integer divisions with bitwise logic (defined in Common::AlignBits).
39 lines
1,021 B
C++
39 lines
1,021 B
C++
// This file is under the public domain.
|
|
|
|
#pragma once
|
|
|
|
#include <cstddef>
|
|
#include <type_traits>
|
|
|
|
namespace Common {
|
|
|
|
template <typename T>
|
|
constexpr T AlignUp(T value, std::size_t size) {
|
|
static_assert(std::is_unsigned_v<T>, "T must be an unsigned value.");
|
|
return static_cast<T>(value + (size - value % size) % size);
|
|
}
|
|
|
|
template <typename T>
|
|
constexpr T AlignDown(T value, std::size_t size) {
|
|
static_assert(std::is_unsigned_v<T>, "T must be an unsigned value.");
|
|
return static_cast<T>(value - value % size);
|
|
}
|
|
|
|
template <typename T>
|
|
constexpr T AlignBits(T value, T align) {
|
|
return (value + ((1 << align) - 1)) >> align << align;
|
|
}
|
|
|
|
template <typename T>
|
|
constexpr bool Is4KBAligned(T value) {
|
|
static_assert(std::is_unsigned_v<T>, "T must be an unsigned value.");
|
|
return (value & 0xFFF) == 0;
|
|
}
|
|
|
|
template <typename T>
|
|
constexpr bool IsWordAligned(T value) {
|
|
static_assert(std::is_unsigned_v<T>, "T must be an unsigned value.");
|
|
return (value & 0b11) == 0;
|
|
}
|
|
|
|
} // namespace Common
|