diff options
Diffstat (limited to 'src/common')
-rw-r--r-- | src/common/CMakeLists.txt | 2 | ||||
-rw-r--r-- | src/common/alignment.h | 6 | ||||
-rw-r--r-- | src/common/binary_find.h | 21 | ||||
-rw-r--r-- | src/common/bit_util.h | 44 | ||||
-rw-r--r-- | src/common/common_funcs.h | 1 |
5 files changed, 74 insertions, 0 deletions
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt index 198b3fe07..2554add28 100644 --- a/src/common/CMakeLists.txt +++ b/src/common/CMakeLists.txt @@ -44,6 +44,7 @@ add_custom_command(OUTPUT scm_rev.cpp "${VIDEO_CORE}/shader/decode/half_set.cpp" "${VIDEO_CORE}/shader/decode/half_set_predicate.cpp" "${VIDEO_CORE}/shader/decode/hfma2.cpp" + "${VIDEO_CORE}/shader/decode/image.cpp" "${VIDEO_CORE}/shader/decode/integer_set.cpp" "${VIDEO_CORE}/shader/decode/integer_set_predicate.cpp" "${VIDEO_CORE}/shader/decode/memory.cpp" @@ -74,6 +75,7 @@ add_library(common STATIC assert.h detached_tasks.cpp detached_tasks.h + binary_find.h bit_field.h bit_util.h cityhash.cpp diff --git a/src/common/alignment.h b/src/common/alignment.h index d94a2291f..617b14d9b 100644 --- a/src/common/alignment.h +++ b/src/common/alignment.h @@ -20,6 +20,12 @@ constexpr T AlignDown(T value, std::size_t size) { } template <typename T> +constexpr T AlignBits(T value, std::size_t align) { + static_assert(std::is_unsigned_v<T>, "T must be an unsigned value."); + return static_cast<T>((value + ((1ULL << 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; diff --git a/src/common/binary_find.h b/src/common/binary_find.h new file mode 100644 index 000000000..5cc523bf9 --- /dev/null +++ b/src/common/binary_find.h @@ -0,0 +1,21 @@ +// Copyright 2019 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <algorithm> + +namespace Common { + +template <class ForwardIt, class T, class Compare = std::less<>> +ForwardIt BinaryFind(ForwardIt first, ForwardIt last, const T& value, Compare comp = {}) { + // Note: BOTH type T and the type after ForwardIt is dereferenced + // must be implicitly convertible to BOTH Type1 and Type2, used in Compare. + // This is stricter than lower_bound requirement (see above) + + first = std::lower_bound(first, last, value, comp); + return first != last && !comp(value, *first) ? first : last; +} + +} // namespace Common diff --git a/src/common/bit_util.h b/src/common/bit_util.h index d032df413..6f7d5a947 100644 --- a/src/common/bit_util.h +++ b/src/common/bit_util.h @@ -97,4 +97,48 @@ inline u32 CountTrailingZeroes64(u64 value) { } #endif +#ifdef _MSC_VER + +inline u32 MostSignificantBit32(const u32 value) { + unsigned long result; + _BitScanReverse(&result, value); + return static_cast<u32>(result); +} + +inline u32 MostSignificantBit64(const u64 value) { + unsigned long result; + _BitScanReverse64(&result, value); + return static_cast<u32>(result); +} + +#else + +inline u32 MostSignificantBit32(const u32 value) { + return 31U - static_cast<u32>(__builtin_clz(value)); +} + +inline u32 MostSignificantBit64(const u64 value) { + return 63U - static_cast<u32>(__builtin_clzll(value)); +} + +#endif + +inline u32 Log2Floor32(const u32 value) { + return MostSignificantBit32(value); +} + +inline u32 Log2Ceil32(const u32 value) { + const u32 log2_f = Log2Floor32(value); + return log2_f + ((value ^ (1U << log2_f)) != 0U); +} + +inline u32 Log2Floor64(const u64 value) { + return MostSignificantBit64(value); +} + +inline u32 Log2Ceil64(const u64 value) { + const u64 log2_f = static_cast<u64>(Log2Floor64(value)); + return static_cast<u32>(log2_f + ((value ^ (1ULL << log2_f)) != 0ULL)); +} + } // namespace Common diff --git a/src/common/common_funcs.h b/src/common/common_funcs.h index 8b0d34da6..04ecac959 100644 --- a/src/common/common_funcs.h +++ b/src/common/common_funcs.h @@ -4,6 +4,7 @@ #pragma once +#include <algorithm> #include <string> #if !defined(ARCHITECTURE_x86_64) |