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Diffstat (limited to 'src/common/math_util.cpp')
| -rw-r--r-- | src/common/math_util.cpp | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/src/common/math_util.cpp b/src/common/math_util.cpp deleted file mode 100644 index bcb70cae..00000000 --- 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); -} - |