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author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> | 2015-05-14 16:16:15 +0200 |
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committer | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> | 2015-05-14 16:16:15 +0200 |
commit | a31fd7f86bea249135b66010569c22982e0015af (patch) | |
tree | b06cde4fa721c4c096e07c6154437e3da30b6a20 | |
parent | dyncom: Removed irrelevant log. (diff) | |
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-rw-r--r-- | src/common/CMakeLists.txt | 1 | ||||
-rw-r--r-- | src/common/common_types.h | 26 | ||||
-rw-r--r-- | src/common/math_util.cpp | 211 | ||||
-rw-r--r-- | src/common/math_util.h | 174 |
4 files changed, 3 insertions, 409 deletions
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt index 11659c3c5..f8fc6450f 100644 --- a/src/common/CMakeLists.txt +++ b/src/common/CMakeLists.txt @@ -9,7 +9,6 @@ set(SRCS logging/filter.cpp logging/text_formatter.cpp logging/backend.cpp - math_util.cpp memory_util.cpp misc.cpp profiler.cpp diff --git a/src/common/common_types.h b/src/common/common_types.h index 644709ba6..f6de0adfc 100644 --- a/src/common/common_types.h +++ b/src/common/common_types.h @@ -87,29 +87,3 @@ protected: NonCopyable(NonCopyable&) = delete; NonCopyable& operator=(NonCopyable&) = delete; }; - -namespace Common { -/// Rectangle data structure -class Rect { -public: - Rect(int x0=0, int y0=0, int x1=0, int y1=0) { - x0_ = x0; - y0_ = y0; - x1_ = x1; - y1_ = y1; - } - ~Rect() { } - - int x0_; ///< Rect top left X-coordinate - int y0_; ///< Rect top left Y-coordinate - int x1_; ///< Rect bottom left X-coordinate - int y1_; ///< Rect bottom right Y-coordinate - - inline u32 width() const { return std::abs(x1_ - x0_); } - inline u32 height() const { return std::abs(y1_ - y0_); } - - inline bool operator == (const Rect& val) const { - return (x0_ == val.x0_ && y0_ == val.y0_ && x1_ == val.x1_ && y1_ == val.y1_); - } -}; -} diff --git a/src/common/math_util.cpp b/src/common/math_util.cpp deleted file mode 100644 index bcb70cae5..000000000 --- a/src/common/math_util.cpp +++ /dev/null @@ -1,211 +0,0 @@ -// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <cstring> -#include <numeric> // Necessary on OS X, but not Linux - -#include "common/common_types.h" -#include "common/math_util.h" - -namespace MathUtil -{ - -u32 ClassifyDouble(double dvalue) -{ - // TODO: Optimize the below to be as fast as possible. - IntDouble value; - value.d = dvalue; - u64 sign = value.i & DOUBLE_SIGN; - u64 exp = value.i & DOUBLE_EXP; - if (exp > DOUBLE_ZERO && exp < DOUBLE_EXP) - { - // Nice normalized number. - return sign ? PPC_FPCLASS_NN : PPC_FPCLASS_PN; - } - else - { - u64 mantissa = value.i & DOUBLE_FRAC; - if (mantissa) - { - if (exp) - { - return PPC_FPCLASS_QNAN; - } - else - { - // Denormalized number. - return sign ? PPC_FPCLASS_ND : PPC_FPCLASS_PD; - } - } - else if (exp) - { - //Infinite - return sign ? PPC_FPCLASS_NINF : PPC_FPCLASS_PINF; - } - else - { - //Zero - return sign ? PPC_FPCLASS_NZ : PPC_FPCLASS_PZ; - } - } -} - -u32 ClassifyFloat(float fvalue) -{ - // TODO: Optimize the below to be as fast as possible. - IntFloat value; - value.f = fvalue; - u32 sign = value.i & FLOAT_SIGN; - u32 exp = value.i & FLOAT_EXP; - if (exp > FLOAT_ZERO && exp < FLOAT_EXP) - { - // Nice normalized number. - return sign ? PPC_FPCLASS_NN : PPC_FPCLASS_PN; - } - else - { - u32 mantissa = value.i & FLOAT_FRAC; - if (mantissa) - { - if (exp) - { - return PPC_FPCLASS_QNAN; // Quiet NAN - } - else - { - // Denormalized number. - return sign ? PPC_FPCLASS_ND : PPC_FPCLASS_PD; - } - } - else if (exp) - { - // Infinite - return sign ? PPC_FPCLASS_NINF : PPC_FPCLASS_PINF; - } - else - { - //Zero - return sign ? PPC_FPCLASS_NZ : PPC_FPCLASS_PZ; - } - } -} - - -} // namespace - -inline void MatrixMul(int n, const float *a, const float *b, float *result) -{ - for (int i = 0; i < n; ++i) - { - for (int j = 0; j < n; ++j) - { - float temp = 0; - for (int k = 0; k < n; ++k) - { - temp += a[i * n + k] * b[k * n + j]; - } - result[i * n + j] = temp; - } - } -} - -// Calculate sum of a float list -float MathFloatVectorSum(const std::vector<float>& Vec) -{ - return std::accumulate(Vec.begin(), Vec.end(), 0.0f); -} - -void Matrix33::LoadIdentity(Matrix33 &mtx) -{ - memset(mtx.data, 0, sizeof(mtx.data)); - mtx.data[0] = 1.0f; - mtx.data[4] = 1.0f; - mtx.data[8] = 1.0f; -} - -void Matrix33::RotateX(Matrix33 &mtx, float rad) -{ - float s = sin(rad); - float c = cos(rad); - memset(mtx.data, 0, sizeof(mtx.data)); - mtx.data[0] = 1; - mtx.data[4] = c; - mtx.data[5] = -s; - mtx.data[7] = s; - mtx.data[8] = c; -} -void Matrix33::RotateY(Matrix33 &mtx, float rad) -{ - float s = sin(rad); - float c = cos(rad); - memset(mtx.data, 0, sizeof(mtx.data)); - mtx.data[0] = c; - mtx.data[2] = s; - mtx.data[4] = 1; - mtx.data[6] = -s; - mtx.data[8] = c; -} - -void Matrix33::Multiply(const Matrix33 &a, const Matrix33 &b, Matrix33 &result) -{ - MatrixMul(3, a.data, b.data, result.data); -} - -void Matrix33::Multiply(const Matrix33 &a, const float vec[3], float result[3]) -{ - for (int i = 0; i < 3; ++i) { - result[i] = 0; - for (int k = 0; k < 3; ++k) { - result[i] += a.data[i * 3 + k] * vec[k]; - } - } -} - -void Matrix44::LoadIdentity(Matrix44 &mtx) -{ - memset(mtx.data, 0, sizeof(mtx.data)); - mtx.data[0] = 1.0f; - mtx.data[5] = 1.0f; - mtx.data[10] = 1.0f; - mtx.data[15] = 1.0f; -} - -void Matrix44::LoadMatrix33(Matrix44 &mtx, const Matrix33 &m33) -{ - for (int i = 0; i < 3; ++i) - { - for (int j = 0; j < 3; ++j) - { - mtx.data[i * 4 + j] = m33.data[i * 3 + j]; - } - } - - for (int i = 0; i < 3; ++i) - { - mtx.data[i * 4 + 3] = 0; - mtx.data[i + 12] = 0; - } - mtx.data[15] = 1.0f; -} - -void Matrix44::Set(Matrix44 &mtx, const float mtxArray[16]) -{ - for(int i = 0; i < 16; ++i) { - mtx.data[i] = mtxArray[i]; - } -} - -void Matrix44::Translate(Matrix44 &mtx, const float vec[3]) -{ - LoadIdentity(mtx); - mtx.data[3] = vec[0]; - mtx.data[7] = vec[1]; - mtx.data[11] = vec[2]; -} - -void Matrix44::Multiply(const Matrix44 &a, const Matrix44 &b, Matrix44 &result) -{ - MatrixMul(4, a.data, b.data, result.data); -} - diff --git a/src/common/math_util.h b/src/common/math_util.h index 52f579cf7..0b1400b41 100644 --- a/src/common/math_util.h +++ b/src/common/math_util.h @@ -4,11 +4,9 @@ #pragma once -#include "common/common_types.h" - #include <algorithm> +#include <cstdlib> #include <type_traits> -#include <vector> namespace MathUtil { @@ -19,83 +17,6 @@ inline T Clamp(const T val, const T& min, const T& max) return std::max(min, std::min(max, val)); } -static const u64 DOUBLE_SIGN = 0x8000000000000000ULL, - DOUBLE_EXP = 0x7FF0000000000000ULL, - DOUBLE_FRAC = 0x000FFFFFFFFFFFFFULL, - DOUBLE_ZERO = 0x0000000000000000ULL; - -static const u32 FLOAT_SIGN = 0x80000000, - FLOAT_EXP = 0x7F800000, - FLOAT_FRAC = 0x007FFFFF, - FLOAT_ZERO = 0x00000000; - -union IntDouble { - double d; - u64 i; -}; -union IntFloat { - float f; - u32 i; -}; - -inline bool IsNAN(double d) -{ - IntDouble x; x.d = d; - return ( ((x.i & DOUBLE_EXP) == DOUBLE_EXP) && - ((x.i & DOUBLE_FRAC) != DOUBLE_ZERO) ); -} - -inline bool IsQNAN(double d) -{ - IntDouble x; x.d = d; - return ( ((x.i & DOUBLE_EXP) == DOUBLE_EXP) && - ((x.i & 0x0007fffffffffffULL) == 0x000000000000000ULL) && - ((x.i & 0x000800000000000ULL) == 0x000800000000000ULL) ); -} - -inline bool IsSNAN(double d) -{ - IntDouble x; x.d = d; - return( ((x.i & DOUBLE_EXP) == DOUBLE_EXP) && - ((x.i & DOUBLE_FRAC) != DOUBLE_ZERO) && - ((x.i & 0x0008000000000000ULL) == DOUBLE_ZERO) ); -} - -inline float FlushToZero(float f) -{ - IntFloat x; x.f = f; - if ((x.i & FLOAT_EXP) == 0) - x.i &= FLOAT_SIGN; // turn into signed zero - return x.f; -} - -inline double FlushToZeroAsFloat(double d) -{ - IntDouble x; x.d = d; - if ((x.i & DOUBLE_EXP) < 0x3800000000000000ULL) - x.i &= DOUBLE_SIGN; // turn into signed zero - return x.d; -} - -enum PPCFpClass -{ - PPC_FPCLASS_QNAN = 0x11, - PPC_FPCLASS_NINF = 0x9, - PPC_FPCLASS_NN = 0x8, - PPC_FPCLASS_ND = 0x18, - PPC_FPCLASS_NZ = 0x12, - PPC_FPCLASS_PZ = 0x2, - PPC_FPCLASS_PD = 0x14, - PPC_FPCLASS_PN = 0x4, - PPC_FPCLASS_PINF = 0x5, -}; - -// Uses PowerPC conventions for the return value, so it can be easily -// used directly in CPU emulation. -u32 ClassifyDouble(double dvalue); -// More efficient float version. -u32 ClassifyFloat(float fvalue); - template<class T> struct Rectangle { @@ -104,101 +25,12 @@ struct Rectangle T right; T bottom; - Rectangle() - { } + Rectangle() {} - Rectangle(T theLeft, T theTop, T theRight, T theBottom) - : left(theLeft), top(theTop), right(theRight), bottom(theBottom) - { } - - bool operator==(const Rectangle& r) { return left==r.left && top==r.top && right==r.right && bottom==r.bottom; } + Rectangle(T left, T top, T right, T bottom) : left(left), top(top), right(right), bottom(bottom) {} T GetWidth() const { return std::abs(static_cast<typename std::make_signed<T>::type>(right - left)); } T GetHeight() const { return std::abs(static_cast<typename std::make_signed<T>::type>(bottom - top)); } - - // If the rectangle is in a coordinate system with a lower-left origin, use - // this Clamp. - void ClampLL(T x1, T y1, T x2, T y2) - { - if (left < x1) left = x1; - if (right > x2) right = x2; - if (top > y1) top = y1; - if (bottom < y2) bottom = y2; - } - - // If the rectangle is in a coordinate system with an upper-left origin, - // use this Clamp. - void ClampUL(T x1, T y1, T x2, T y2) - { - if (left < x1) left = x1; - if (right > x2) right = x2; - if (top < y1) top = y1; - if (bottom > y2) bottom = y2; - } }; } // namespace MathUtil - -inline float pow2f(float x) {return x * x;} -inline double pow2(double x) {return x * x;} - -float MathFloatVectorSum(const std::vector<float>&); - -#define ROUND_UP(x, a) (((x) + (a) - 1) & ~((a) - 1)) -#define ROUND_DOWN(x, a) ((x) & ~((a) - 1)) - -// Rounds down. 0 -> undefined -inline u64 Log2(u64 val) -{ -#if defined(__GNUC__) - return 63 - __builtin_clzll(val); - -#elif defined(_MSC_VER) && defined(_M_X64) - unsigned long result = -1; - _BitScanReverse64(&result, val); - return result; - -#else - u64 result = -1; - while (val != 0) - { - val >>= 1; - ++result; - } - return result; -#endif -} - -// Tiny matrix/vector library. -// Used for things like Free-Look in the gfx backend. - -class Matrix33 -{ -public: - static void LoadIdentity(Matrix33 &mtx); - - // set mtx to be a rotation matrix around the x axis - static void RotateX(Matrix33 &mtx, float rad); - // set mtx to be a rotation matrix around the y axis - static void RotateY(Matrix33 &mtx, float rad); - - // set result = a x b - static void Multiply(const Matrix33 &a, const Matrix33 &b, Matrix33 &result); - static void Multiply(const Matrix33 &a, const float vec[3], float result[3]); - - float data[9]; -}; - -class Matrix44 -{ -public: - static void LoadIdentity(Matrix44 &mtx); - static void LoadMatrix33(Matrix44 &mtx, const Matrix33 &m33); - static void Set(Matrix44 &mtx, const float mtxArray[16]); - - static void Translate(Matrix44 &mtx, const float vec[3]); - - static void Multiply(const Matrix44 &a, const Matrix44 &b, Matrix44 &result); - - float data[16]; -}; |