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 00028 #ifndef _AK_VECTORVALUERAMP_H_ 00029 #define _AK_VECTORVALUERAMP_H_ 00030 00031 #include <AK/SoundEngine/Common/AkSimd.h> 00032 00033 /// Tool for computing a ramp using SIMD types. 00034 /// Implementation using AKSIMD_V4F32 00035 class CAkVectorValueRampV4 00036 { 00037 public: 00038 00039 AkForceInline AKSIMD_V4F32 Setup( AkReal32 in_fStartValue, AkReal32 in_fStopValue, AkUInt32 in_uNumFrames ) 00040 { 00041 const AkReal32 fIncrement = (in_fStopValue-in_fStartValue)/in_uNumFrames; 00042 const AkReal32 f4xInc = 4.f*fIncrement; 00043 vIncrement = AKSIMD_LOAD1_V4F32( f4xInc); 00044 AK_ALIGN_SIMD( AkReal32 fVal[4] ); 00045 fVal[0] = in_fStartValue; 00046 fVal[1] = fVal[0] + fIncrement; 00047 fVal[2] = fVal[1] + fIncrement; 00048 fVal[3] = fVal[2] + fIncrement; 00049 vValueRamp = AKSIMD_LOAD_V4F32( fVal ); 00050 return vValueRamp; 00051 } 00052 00053 AkForceInline AKSIMD_V4F32 Tick( ) 00054 { 00055 vValueRamp = AKSIMD_ADD_V4F32( vValueRamp, vIncrement ); 00056 return vValueRamp; 00057 } 00058 00059 private: 00060 AKSIMD_V4F32 vIncrement; 00061 AKSIMD_V4F32 vValueRamp; 00062 }; 00063 00064 00065 #ifdef AKSIMD_V2F32_SUPPORTED 00066 /// Tool for computing a ramp using SIMD types. 00067 /// Implementation using AKSIMD_V2F32 00068 class CAkVectorValueRampV2 00069 { 00070 public: 00071 00072 AkForceInline AKSIMD_V2F32 Setup( AkReal32 in_fStartValue, AkReal32 in_fStopValue, AkUInt32 in_uNumFrames ) 00073 { 00074 const AkReal32 fIncrement = (in_fStopValue-in_fStartValue)/in_uNumFrames; 00075 const AkReal32 f2xInc = 2.f*fIncrement; 00076 vIncrement = AKSIMD_SET_V2F32( f2xInc ); 00077 AKSIMD_BUILD_V2F32( const AKSIMD_V2F32 vStartOffset, 0.f, fIncrement ); 00078 AKSIMD_V2F32 l_vValueRamp = AKSIMD_SET_V2F32( in_fStartValue ); 00079 l_vValueRamp = AKSIMD_ADD_V2F32( l_vValueRamp, vStartOffset ); 00080 vValueRamp = l_vValueRamp; 00081 return l_vValueRamp; 00082 } 00083 00084 AkForceInline AKSIMD_V2F32 Tick( ) 00085 { 00086 vValueRamp = AKSIMD_ADD_V2F32( vValueRamp, vIncrement ); 00087 return vValueRamp; 00088 } 00089 00090 private: 00091 AKSIMD_V2F32 vIncrement; 00092 AKSIMD_V2F32 vValueRamp; 00093 }; 00094 #endif 00095 00096 // By default, CAkVectorValueRamp uses the V4 implementation. 00097 typedef CAkVectorValueRampV4 CAkVectorValueRamp; 00098 00099 #endif //_AK_VECTORVALUERAMP_H_