00001 /******************************************************************************* 00002 The content of this file includes portions of the AUDIOKINETIC Wwise Technology 00003 released in source code form as part of the SDK installer package. 00004 00005 Commercial License Usage 00006 00007 Licensees holding valid commercial licenses to the AUDIOKINETIC Wwise Technology 00008 may use this file in accordance with the end user license agreement provided 00009 with the software or, alternatively, in accordance with the terms contained in a 00010 written agreement between you and Audiokinetic Inc. 00011 00012 Apache License Usage 00013 00014 Alternatively, this file may be used under the Apache License, Version 2.0 (the 00015 "Apache License"); you may not use this file except in compliance with the 00016 Apache License. You may obtain a copy of the Apache License at 00017 http://www.apache.org/licenses/LICENSE-2.0. 00018 00019 Unless required by applicable law or agreed to in writing, software distributed 00020 under the Apache License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES 00021 OR CONDITIONS OF ANY KIND, either express or implied. See the Apache License for 00022 the specific language governing permissions and limitations under the License. 00023 00024 Version: <VERSION> Build: <BUILDNUMBER> 00025 Copyright (c) <COPYRIGHTYEAR> Audiokinetic Inc. 00026 *******************************************************************************/ 00027 00030 00031 #ifndef _AK_FP_UTILS_H_ 00032 #define _AK_FP_UTILS_H_ 00033 00034 #include <AK/SoundEngine/Common/AkTypes.h> 00035 00036 // Note: In many case you can use AK_FPSetValXX instead of FSEL. This saves a subtraction on platforms that do not have FSEL instructions. 00037 #if defined(__PPU__) 00038 #include <ppu_intrinsics.h> 00039 #define AK_FSEL( __a__, __b__, __c__ ) ( __fsels((__a__),(__b__),(__c__) ) ) 00040 #elif defined(AK_XBOX360) 00041 #include "ppcintrinsics.h" 00042 #define AK_FSEL( __a__, __b__, __c__ ) ( (AkReal32)__fsel((__a__),(__b__),(__c__) ) ) 00043 #else 00044 #define AK_FSEL( __a__, __b__, __c__) (((__a__) >= 0) ? (__b__) : (__c__)) 00045 #endif 00046 00047 #if defined(AK_XBOX360) || defined (__PPU__) || defined(AK_WIIU_SOFTWARE) 00048 00050 static AkForceInline AkReal32 AK_FPMin( AkReal32 fA, AkReal32 fB ) 00051 { 00052 return AK_FSEL(fA-fB,fB,fA); 00053 } 00054 00056 static AkForceInline AkReal32 AK_FPMax( AkReal32 fA, AkReal32 fB ) 00057 { 00058 return AK_FSEL(fA-fB,fA,fB); 00059 } 00060 00062 static AkForceInline void AK_FPSetValGT( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00063 { 00064 io_fVariableToSet = AK_FSEL( (in_fComparandB-in_fComparandA), io_fVariableToSet, in_fValueIfTrue ); 00065 } 00066 00068 static AkForceInline void AK_FPSetValGTE( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00069 { 00070 io_fVariableToSet = AK_FSEL( (in_fComparandA-in_fComparandB), in_fValueIfTrue, io_fVariableToSet ); 00071 } 00072 00074 static AkForceInline void AK_FPSetValLT( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00075 { 00076 io_fVariableToSet = AK_FSEL( (in_fComparandA-in_fComparandB), io_fVariableToSet, in_fValueIfTrue ); 00077 } 00078 00080 static AkForceInline void AK_FPSetValLTE( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00081 { 00082 io_fVariableToSet = AK_FSEL( (in_fComparandB-in_fComparandA), in_fValueIfTrue, io_fVariableToSet ); 00083 } 00084 00085 #elif defined(__SPU__) 00086 00087 // Note: spu_insert() and spu_promote should not compile to actual instructions on the SPU where everything is vector types 00088 00090 static AkForceInline AkReal32 AK_FPMin( AkReal32 fA, AkReal32 fB ) 00091 { 00092 vec_float4 vA = spu_promote( fA, 0 ); 00093 vec_float4 vB = spu_promote( fB, 0 ); 00094 vec_float4 vSel = spu_sel(vA, vB, spu_cmpgt(vA, vB)); 00095 return spu_extract( vSel, 0 ); 00096 } 00097 00099 static AkForceInline AkReal32 AK_FPMax( AkReal32 fA, AkReal32 fB ) 00100 { 00101 vec_float4 vA = spu_promote( fA, 0 ); 00102 vec_float4 vB = spu_promote( fB, 0 ); 00103 vec_float4 vSel = spu_sel(vB, vA, spu_cmpgt(vA, vB)); 00104 return spu_extract( vSel, 0 ); 00105 } 00106 00108 static AkForceInline void AK_FPSetValGT( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00109 { 00110 vec_float4 vA = spu_promote( in_fComparandA, 0 ); 00111 vec_float4 vB = spu_promote( in_fComparandB, 0 ); 00112 vec_float4 vVTS = spu_promote( io_fVariableToSet, 0 ); 00113 vec_float4 vVIT = spu_promote( in_fValueIfTrue, 0 ); 00114 vVTS = spu_sel(vVTS, vVIT, spu_cmpgt(vA, vB)); 00115 io_fVariableToSet = spu_extract( vVTS, 0 ); 00116 } 00117 00120 static AkForceInline void AK_FPSetValGTE( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00121 { 00122 vec_float4 vA = spu_promote( in_fComparandA, 0 ); 00123 vec_float4 vB = spu_promote( in_fComparandB, 0 ); 00124 vec_float4 vVTS = spu_promote( io_fVariableToSet, 0 ); 00125 vec_float4 vVIT = spu_promote( in_fValueIfTrue, 0 ); 00126 vec_uint4 vCmp = spu_cmpgt(vA, vB); 00127 vCmp = spu_or( vCmp, spu_cmpeq( vA, vB ) ); 00128 vVTS = spu_sel(vVTS, vVIT, vCmp); 00129 io_fVariableToSet = spu_extract( vVTS, 0 ); 00130 } 00131 00134 static AkForceInline void AK_FPSetValLT( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00135 { 00136 vec_float4 vA = spu_promote( in_fComparandA, 0 ); 00137 vec_float4 vB = spu_promote( in_fComparandB, 0 ); 00138 vec_float4 vVTS = spu_promote( io_fVariableToSet, 0 ); 00139 vec_float4 vVIT = spu_promote( in_fValueIfTrue, 0 ); 00140 vec_uint4 vCmp = spu_cmpgt(vA, vB); 00141 vCmp = spu_nor( vCmp, spu_cmpeq( vA, vB ) ); 00142 vVTS = spu_sel(vVTS, vVIT, vCmp); 00143 io_fVariableToSet = spu_extract( vVTS, 0 ); 00144 } 00145 00147 static AkForceInline void AK_FPSetValLTE( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00148 { 00149 vec_float4 vA = spu_promote( in_fComparandA, 0 ); 00150 vec_float4 vB = spu_promote( in_fComparandB, 0 ); 00151 vec_float4 vVTS = spu_promote( io_fVariableToSet, 0 ); 00152 vec_float4 vVIT = spu_promote( in_fValueIfTrue, 0 ); 00153 vec_uint4 vCtl = spu_cmpgt(vA, vB); 00154 vCtl = spu_nand(vCtl,vCtl); 00155 vVTS = spu_sel(vVTS, vVIT, vCtl); 00156 io_fVariableToSet = spu_extract( vVTS, 0 ); 00157 } 00158 00159 #else 00160 00162 static AkForceInline AkReal32 AK_FPMin( AkReal32 fA, AkReal32 fB ) 00163 { 00164 return (fA < fB ? fA : fB); 00165 } 00166 00168 static AkForceInline AkReal32 AK_FPMax( AkReal32 fA, AkReal32 fB ) 00169 { 00170 return (fA > fB ? fA : fB); 00171 } 00172 00174 static AkForceInline void AK_FPSetValGT( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00175 { 00176 if ( in_fComparandA > in_fComparandB ) 00177 io_fVariableToSet = in_fValueIfTrue; 00178 } 00179 00181 static AkForceInline void AK_FPSetValGTE( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00182 { 00183 if ( in_fComparandA >= in_fComparandB ) 00184 io_fVariableToSet = in_fValueIfTrue; 00185 } 00186 00188 static AkForceInline void AK_FPSetValLT( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00189 { 00190 if ( in_fComparandA < in_fComparandB ) 00191 io_fVariableToSet = in_fValueIfTrue; 00192 } 00193 00195 static AkForceInline void AK_FPSetValLTE( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue ) 00196 { 00197 if ( in_fComparandA <= in_fComparandB ) 00198 io_fVariableToSet = in_fValueIfTrue; 00199 } 00200 00201 #endif 00202 00203 #endif //_AK_FP_UTILS_H_ 00204
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