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118 lines
3.6 KiB
118 lines
3.6 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#ifndef hsFixedTypesDefined |
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#define hsFixedTypesDefined |
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#include "hsTypes.h" |
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#if HS_BUILD_FOR_MAC |
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#include <ToolUtils.h> |
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#include <FixMath.h> |
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#endif |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#define hsIntToFixed(x) ((hsFixed)(x) << 16) |
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#define hsFixedToInt(x) ((x) >> 16) |
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#define hsFixedRound(x) (((x) + 0x8000) >> 16) |
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#define hsFixed1 hsIntToFixed(1) |
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#define hsFixedPI (0x3243F) |
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#define hsFixedPiOver2 (0x1921F) |
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#define hsFixedToFract(x) ((hsFract)(x) << 14) |
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#define hsFractToFixed(x) ((hsFixed)(x) >> 14) |
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#define hsFract1 hsFixedToFract(hsFixed1) |
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#define hsFractPiOver2 (0x6487ED34) /* needs some work */ |
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#define hsFixFloor(x) \ |
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(hsFixed)((x) < 0 ? -(hsFixed)((-(x) + 0xFFFF) & 0xFFFF0000) : (x) & 0xFFFF0000) |
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#define hsFixedToFloorInt(x) \ |
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(int)((x) < 0 ? -(int)((-(x) + 0xFFFF) >> 16) : ((x) >> 16)) |
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#define hsFixCeiling(x) \ |
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(hsFixed)((x) < 0 ? -(hsFixed)(-(x) & 0xFFFF0000) : ((x) + 0xFFFF) & 0xFFFF0000) |
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#define hsFixedToCeilingInt(x) \ |
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(int)((x) < 0 ? -(int)(-(x) >> 16) : (((x) + 0xFFFF) >> 16)) |
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#if HS_CAN_USE_FLOAT |
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#define hsFixedToFloat(x) ((x) / float(hsFixed1)) |
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#define hsFloatToFixed(x) hsFixed((x) * hsFixed1) |
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#define hsFractToFloat(x) ((x) / float(hsFract1)) |
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#define hsFloatToFract(x) hsFract((x) * hsFract1) |
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#endif |
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#if HS_BUILD_FOR_MAC68K && !(HS_PIN_MATH_OVERFLOW) |
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#define hsFixMul(a, b) FixMul(a, b) |
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#else |
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hsFixed hsFixMul(hsFixed a, hsFixed b); |
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#endif |
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#if HS_BUILD_FOR_MAC && !(HS_PIN_MATH_OVERFLOW) && !(HS_MP_SAFE) |
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#define hsFixDiv(a, b) FixDiv(a, b) |
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#define hsFracMul(a, b) FracMul(a, b) |
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#define hsFracDiv(a, b) FracDiv(a, b) |
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#else |
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hsFract hsFixDiv(hsFixed a, hsFixed b); |
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hsFract hsFracMul(hsFract a, hsFract b); |
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hsFract hsFracDiv(hsFract a, hsFract b); |
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#endif |
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hsFract hsFracSqrt(hsFract value); |
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#define hsFixSqrt(value) (hsFracSqrt(value) >> 7) |
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hsFract hsFracCubeRoot(hsFract value); |
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hsFixed hsFixedSin(hsFixed s); |
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hsFixed hsFixedCos(hsFixed s); |
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hsFixed hsFixedASin(hsFixed s); |
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hsFixed hsFixedACos(hsFixed s); |
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UInt16 hsSqrt32(UInt32 value); |
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UInt16 hsCubeRoot32(UInt32 value); |
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Int32 hsMulDiv32(Int32 numer1, Int32 numer2, Int32 denom); |
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Int32 hsMagnitude32(Int32 x, Int32 y); |
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#ifdef __cplusplus |
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} |
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#endif |
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#ifdef __cplusplus |
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struct hsFixedPlane { |
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hsFixed fA, fB, fC; |
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void Set(hsFixed a, hsFixed b, hsFixed c) { fA = a; fB = b; fC = c; } |
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hsFixed FixEval(hsFixed x, hsFixed y) const { return hsFixMul(fA, x) + hsFixMul(fB, y) + fC; } |
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Int32 IntEval(Int32 x, Int32 y) const { return fA * x + fB * y + fC; } |
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void ShiftDown(UInt32 i) { fA >>= i; fB >>= i; fC >>= i;} |
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}; |
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#endif |
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#endif
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