1 2 /* 3 * Copyright 2006 The Android Open Source Project 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10 #ifndef SkFP_DEFINED 11 #define SkFP_DEFINED 12 13 #include "SkMath.h" 14 15 #ifdef SK_SCALAR_IS_FLOAT 16 17 typedef float SkFP; 18 19 #define SkScalarToFP(n) (n) 20 #define SkFPToScalar(n) (n) 21 #define SkIntToFP(n) SkIntToScalar(n) 22 #define SkFPRound(x) SkScalarRound(n) 23 #define SkFPCeil(x) SkScalarCeil(n) 24 #define SkFPFloor(x) SkScalarFloor(n) 25 26 #define SkFPNeg(x) (-(x)) 27 #define SkFPAbs(x) SkScalarAbs(x) 28 #define SkFPAdd(a, b) ((a) + (b)) 29 #define SkFPSub(a, b) ((a) - (b)) 30 #define SkFPMul(a, b) ((a) * (b)) 31 #define SkFPMulInt(a, n) ((a) * (n)) 32 #define SkFPDiv(a, b) ((a) / (b)) 33 #define SkFPDivInt(a, n) ((a) / (n)) 34 #define SkFPInvert(x) SkScalarInvert(x) 35 #define SkFPSqrt(x) SkScalarSqrt(x) 36 #define SkFPCubeRoot(x) sk_float_pow(x, 0.3333333f) 37 38 #define SkFPLT(a, b) ((a) < (b)) 39 #define SkFPLE(a, b) ((a) <= (b)) 40 #define SkFPGT(a, b) ((a) > (b)) 41 #define SkFPGE(a, b) ((a) >= (b)) 42 43 #else // scalar is fixed 44 45 #include "SkFloat.h" 46 47 typedef int32_t SkFP; 48 49 #define SkScalarToFP(n) SkFloat::SetShift(n, -16) 50 #define SkFPToScalar(n) SkFloat::GetShift(n, -16) 51 #define SkIntToFP(n) SkFloat::SetShift(n, 0) 52 #define SkFPRound(x) SkFloat::Round(x); 53 #define SkFPCeil(x) SkFloat::Ceil(); 54 #define SkFPFloor(x) SkFloat::Floor(); 55 56 #define SkFPNeg(x) SkFloat::Neg(x) 57 #define SkFPAbs(x) SkFloat::Abs(x) 58 #define SkFPAdd(a, b) SkFloat::Add(a, b) 59 #define SkFPSub(a, b) SkFloat::Add(a, SkFloat::Neg(b)) 60 #define SkFPMul(a, b) SkFloat::Mul(a, b) 61 #define SkFPMulInt(a, n) SkFloat::MulInt(a, n) 62 #define SkFPDiv(a, b) SkFloat::Div(a, b) 63 #define SkFPDivInt(a, n) SkFloat::DivInt(a, n) 64 #define SkFPInvert(x) SkFloat::Invert(x) 65 #define SkFPSqrt(x) SkFloat::Sqrt(x) 66 #define SkFPCubeRoot(x) SkFloat::CubeRoot(x) 67 68 #define SkFPLT(a, b) (SkFloat::Cmp(a, b) < 0) 69 #define SkFPLE(a, b) (SkFloat::Cmp(a, b) <= 0) 70 #define SkFPGT(a, b) (SkFloat::Cmp(a, b) > 0) 71 #define SkFPGE(a, b) (SkFloat::Cmp(a, b) >= 0) 72 73 #endif 74 75 #ifdef SK_DEBUG 76 void SkFP_UnitTest(); 77 #endif 78 79 #endif 80
