chromium/third_party/dawn/src/dawn/common/Math.cpp

// Copyright 2017 The Dawn & Tint Authors
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#include "dawn/common/Math.h"

#include <algorithm>
#include <cmath>
#include <limits>

#include "dawn/common/Assert.h"
#include "dawn/common/Platform.h"

#if DAWN_COMPILER_IS(MSVC)
#include <intrin.h>
#endif

namespace dawn {

uint32_t ScanForward(uint32_t bits) { … }

uint32_t Log2(uint32_t value) { … }

uint32_t Log2(uint64_t value) { … }

uint64_t NextPowerOfTwo(uint64_t n) { … }

bool IsPowerOfTwo(uint64_t n) { … }

bool IsPtrAligned(const void* ptr, size_t alignment) { … }

bool IsAligned(uint32_t value, size_t alignment) { … }

uint16_t Float32ToFloat16(float fp32) { … }

float Float16ToFloat32(uint16_t fp16) { … }

bool IsFloat16NaN(uint16_t fp16) { … }

// Based on the Khronos Data Format Specification 1.2 Section 13.3 sRGB transfer functions
float SRGBToLinear(float srgb) { … }

uint64_t RoundUp(uint64_t n, uint64_t m) { … }

}  // namespace dawn