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| 1 /* |
| 2 * Copyright (C) 2010, Google Inc. All rights reserved. |
| 3 * |
| 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions |
| 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the |
| 11 * documentation and/or other materials provided with the distribution. |
| 12 * |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y |
| 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N |
| 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 23 */ |
| 24 |
| 25 #include "config.h" |
| 26 |
| 27 #if ENABLE(WEB_AUDIO) |
| 28 |
| 29 #include "platform/audio/VectorMath.h" |
| 30 |
| 31 #include "wtf/Assertions.h" |
| 32 #include "wtf/CPU.h" |
| 33 #include <stdint.h> |
| 34 |
| 35 #if OS(MACOSX) |
| 36 // On the Mac we use the highly optimized versions in Accelerate.framework |
| 37 // In 32-bit mode (__ppc__ or __i386__) <Accelerate/Accelerate.h> includes <vecL
ib/vDSP_translate.h> which defines macros of the same name as |
| 38 // our namespaced function names, so we must handle this case differently. Other
architectures (64bit, ARM, etc.) do not include this header file. |
| 39 #include <Accelerate/Accelerate.h> |
| 40 #endif |
| 41 |
| 42 #if CPU(X86) || CPU(X86_64) |
| 43 #include <emmintrin.h> |
| 44 #endif |
| 45 |
| 46 #include <algorithm> |
| 47 #include <math.h> |
| 48 |
| 49 namespace blink { |
| 50 |
| 51 namespace VectorMath { |
| 52 |
| 53 void vsmul(const float* sourceP, int sourceStride, const float* scale, float* de
stP, int destStride, size_t framesToProcess) |
| 54 { |
| 55 #if CPU(X86) |
| 56 ::vsmul(sourceP, sourceStride, scale, destP, destStride, framesToProcess); |
| 57 #else |
| 58 vDSP_vsmul(sourceP, sourceStride, scale, destP, destStride, framesToProcess)
; |
| 59 #endif |
| 60 } |
| 61 |
| 62 void vadd(const float* source1P, int sourceStride1, const float* source2P, int s
ourceStride2, float* destP, int destStride, size_t framesToProcess) |
| 63 { |
| 64 #if CPU(X86) |
| 65 ::vadd(source1P, sourceStride1, source2P, sourceStride2, destP, destStride,
framesToProcess); |
| 66 #else |
| 67 vDSP_vadd(source1P, sourceStride1, source2P, sourceStride2, destP, destStrid
e, framesToProcess); |
| 68 #endif |
| 69 } |
| 70 |
| 71 void vmul(const float* source1P, int sourceStride1, const float* source2P, int s
ourceStride2, float* destP, int destStride, size_t framesToProcess) |
| 72 { |
| 73 #if CPU(X86) |
| 74 ::vmul(source1P, sourceStride1, source2P, sourceStride2, destP, destStride,
framesToProcess); |
| 75 #else |
| 76 vDSP_vmul(source1P, sourceStride1, source2P, sourceStride2, destP, destStrid
e, framesToProcess); |
| 77 #endif |
| 78 } |
| 79 |
| 80 void zvmul(const float* real1P, const float* imag1P, const float* real2P, const
float* imag2P, float* realDestP, float* imagDestP, size_t framesToProcess) |
| 81 { |
| 82 DSPSplitComplex sc1; |
| 83 DSPSplitComplex sc2; |
| 84 DSPSplitComplex dest; |
| 85 sc1.realp = const_cast<float*>(real1P); |
| 86 sc1.imagp = const_cast<float*>(imag1P); |
| 87 sc2.realp = const_cast<float*>(real2P); |
| 88 sc2.imagp = const_cast<float*>(imag2P); |
| 89 dest.realp = realDestP; |
| 90 dest.imagp = imagDestP; |
| 91 #if CPU(X86) |
| 92 ::zvmul(&sc1, 1, &sc2, 1, &dest, 1, framesToProcess, 1); |
| 93 #else |
| 94 vDSP_zvmul(&sc1, 1, &sc2, 1, &dest, 1, framesToProcess, 1); |
| 95 #endif |
| 96 } |
| 97 |
| 98 void vsma(const float* sourceP, int sourceStride, const float* scale, float* des
tP, int destStride, size_t framesToProcess) |
| 99 { |
| 100 vDSP_vsma(sourceP, sourceStride, scale, destP, destStride, destP, destStride
, framesToProcess); |
| 101 } |
| 102 |
| 103 void vmaxmgv(const float* sourceP, int sourceStride, float* maxP, size_t framesT
oProcess) |
| 104 { |
| 105 vDSP_maxmgv(sourceP, sourceStride, maxP, framesToProcess); |
| 106 } |
| 107 |
| 108 void vsvesq(const float* sourceP, int sourceStride, float* sumP, size_t framesTo
Process) |
| 109 { |
| 110 vDSP_svesq(const_cast<float*>(sourceP), sourceStride, sumP, framesToProcess)
; |
| 111 } |
| 112 |
| 113 void vclip(const float* sourceP, int sourceStride, const float* lowThresholdP, c
onst float* highThresholdP, float* destP, int destStride, size_t framesToProcess
) |
| 114 { |
| 115 vDSP_vclip(const_cast<float*>(sourceP), sourceStride, const_cast<float*>(low
ThresholdP), const_cast<float*>(highThresholdP), destP, destStride, framesToProc
ess); |
| 116 } |
| 117 |
| 118 } // namespace VectorMath |
| 119 |
| 120 } // namespace blink |
| 121 |
| 122 #endif // ENABLE(WEB_AUDIO) |
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