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gecko/content/media/AudioNodeEngineNEON.cpp

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/* -*- mode: c++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* this source code form is subject to the terms of the mozilla public
* license, v. 2.0. if a copy of the mpl was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "AudioNodeEngineNEON.h"
#include <arm_neon.h>
#ifdef DEBUG
#define ASSERT_ALIGNED(ptr) \
MOZ_ASSERT((((uintptr_t)ptr + 15) & ~0x0F) == (uintptr_t)ptr, \
#ptr " has to be aligned 16-bytes aligned.");
#else
#define ASSERT_ALIGNED(ptr)
#endif
#define ADDRESS_OF(array, index) ((float32_t*)&array[index])
namespace mozilla {
void AudioBufferAddWithScale_NEON(const float* aInput,
float aScale,
float* aOutput,
uint32_t aSize)
{
ASSERT_ALIGNED(aInput);
ASSERT_ALIGNED(aOutput);
float32x4_t vin0, vin1, vin2, vin3;
float32x4_t vout0, vout1, vout2, vout3;
float32x4_t vscale = vmovq_n_f32(aScale);
uint32_t dif = aSize % 16;
aSize -= dif;
unsigned i = 0;
for (; i < aSize; i+=16) {
vin0 = vld1q_f32(ADDRESS_OF(aInput, i));
vin1 = vld1q_f32(ADDRESS_OF(aInput, i+4));
vin2 = vld1q_f32(ADDRESS_OF(aInput, i+8));
vin3 = vld1q_f32(ADDRESS_OF(aInput, i+12));
vout0 = vld1q_f32(ADDRESS_OF(aOutput, i));
vout1 = vld1q_f32(ADDRESS_OF(aOutput, i+4));
vout2 = vld1q_f32(ADDRESS_OF(aOutput, i+8));
vout3 = vld1q_f32(ADDRESS_OF(aOutput, i+12));
vout0 = vmlaq_f32(vout0, vin0, vscale);
vout1 = vmlaq_f32(vout1, vin1, vscale);
vout2 = vmlaq_f32(vout2, vin2, vscale);
vout3 = vmlaq_f32(vout3, vin3, vscale);
vst1q_f32(ADDRESS_OF(aOutput, i), vout0);
vst1q_f32(ADDRESS_OF(aOutput, i+4), vout1);
vst1q_f32(ADDRESS_OF(aOutput, i+8), vout2);
vst1q_f32(ADDRESS_OF(aOutput, i+12), vout3);
}
for (unsigned j = 0; j < dif; ++i, ++j) {
aOutput[i] += aInput[i]*aScale;
}
}
void
AudioBlockCopyChannelWithScale_NEON(const float* aInput,
float aScale,
float* aOutput)
{
ASSERT_ALIGNED(aInput);
ASSERT_ALIGNED(aOutput);
float32x4_t vin0, vin1, vin2, vin3;
float32x4_t vout0, vout1, vout2, vout3;
float32x4_t vscale = vmovq_n_f32(aScale);
for (uint32_t i = 0; i < WEBAUDIO_BLOCK_SIZE; i+=16) {
vin0 = vld1q_f32(ADDRESS_OF(aInput, i));
vin1 = vld1q_f32(ADDRESS_OF(aInput, i+4));
vin2 = vld1q_f32(ADDRESS_OF(aInput, i+8));
vin3 = vld1q_f32(ADDRESS_OF(aInput, i+12));
vout0 = vmulq_f32(vin0, vscale);
vout1 = vmulq_f32(vin1, vscale);
vout2 = vmulq_f32(vin2, vscale);
vout3 = vmulq_f32(vin3, vscale);
vst1q_f32(ADDRESS_OF(aOutput, i), vout0);
vst1q_f32(ADDRESS_OF(aOutput, i+4), vout1);
vst1q_f32(ADDRESS_OF(aOutput, i+8), vout2);
vst1q_f32(ADDRESS_OF(aOutput, i+12), vout3);
}
}
void
AudioBlockCopyChannelWithScale_NEON(const float aInput[WEBAUDIO_BLOCK_SIZE],
const float aScale[WEBAUDIO_BLOCK_SIZE],
float aOutput[WEBAUDIO_BLOCK_SIZE])
{
ASSERT_ALIGNED(aInput);
ASSERT_ALIGNED(aScale);
ASSERT_ALIGNED(aOutput);
float32x4_t vin0, vin1, vin2, vin3;
float32x4_t vout0, vout1, vout2, vout3;
float32x4_t vscale0, vscale1, vscale2, vscale3;
for (uint32_t i = 0; i < WEBAUDIO_BLOCK_SIZE; i+=16) {
vin0 = vld1q_f32(ADDRESS_OF(aInput, i));
vin1 = vld1q_f32(ADDRESS_OF(aInput, i+4));
vin2 = vld1q_f32(ADDRESS_OF(aInput, i+8));
vin3 = vld1q_f32(ADDRESS_OF(aInput, i+12));
vscale0 = vld1q_f32(ADDRESS_OF(aScale, i));
vscale1 = vld1q_f32(ADDRESS_OF(aScale, i+4));
vscale2 = vld1q_f32(ADDRESS_OF(aScale, i+8));
vscale3 = vld1q_f32(ADDRESS_OF(aScale, i+12));
vout0 = vmulq_f32(vin0, vscale0);
vout1 = vmulq_f32(vin1, vscale1);
vout2 = vmulq_f32(vin2, vscale2);
vout3 = vmulq_f32(vin3, vscale3);
vst1q_f32(ADDRESS_OF(aOutput, i), vout0);
vst1q_f32(ADDRESS_OF(aOutput, i+4), vout1);
vst1q_f32(ADDRESS_OF(aOutput, i+8), vout2);
vst1q_f32(ADDRESS_OF(aOutput, i+12), vout3);
}
}
void
AudioBufferInPlaceScale_NEON(float* aBlock,
uint32_t aChannelCount,
float aScale,
uint32_t aSize)
{
ASSERT_ALIGNED(aBlock);
float32x4_t vin0, vin1, vin2, vin3;
float32x4_t vout0, vout1, vout2, vout3;
float32x4_t vscale = vmovq_n_f32(aScale);
uint32_t totalSize = aSize * aChannelCount;
uint32_t dif = totalSize % 16;
totalSize -= dif;
uint32_t i = 0;
for (; i < totalSize; i+=16) {
vin0 = vld1q_f32(ADDRESS_OF(aBlock, i));
vin1 = vld1q_f32(ADDRESS_OF(aBlock, i+4));
vin2 = vld1q_f32(ADDRESS_OF(aBlock, i+8));
vin3 = vld1q_f32(ADDRESS_OF(aBlock, i+12));
vout0 = vmulq_f32(vin0, vscale);
vout1 = vmulq_f32(vin1, vscale);
vout2 = vmulq_f32(vin2, vscale);
vout3 = vmulq_f32(vin3, vscale);
vst1q_f32(ADDRESS_OF(aBlock, i), vout0);
vst1q_f32(ADDRESS_OF(aBlock, i+4), vout1);
vst1q_f32(ADDRESS_OF(aBlock, i+8), vout2);
vst1q_f32(ADDRESS_OF(aBlock, i+12), vout3);
}
for (unsigned j = 0; j < dif; ++i, ++j) {
aBlock[i] *= aScale;
}
}
void
AudioBlockPanStereoToStereo_NEON(const float aInputL[WEBAUDIO_BLOCK_SIZE],
const float aInputR[WEBAUDIO_BLOCK_SIZE],
float aGainL, float aGainR, bool aIsOnTheLeft,
float aOutputL[WEBAUDIO_BLOCK_SIZE],
float aOutputR[WEBAUDIO_BLOCK_SIZE])
{
ASSERT_ALIGNED(aInputL);
ASSERT_ALIGNED(aInputR);
ASSERT_ALIGNED(aOutputL);
ASSERT_ALIGNED(aOutputR);
float32x4_t vinL0, vinL1, vinL2, vinL3;
float32x4_t vinR0, vinR1, vinR2, vinR3;
float32x4_t voutL0, voutL1, voutL2, voutL3;
float32x4_t voutR0, voutR1, voutR2, voutR3;
float32x4_t vscaleL = vmovq_n_f32(aGainL);
float32x4_t vscaleR = vmovq_n_f32(aGainR);
if (aIsOnTheLeft) {
for (uint32_t i = 0; i < WEBAUDIO_BLOCK_SIZE; i+=16) {
vinL0 = vld1q_f32(ADDRESS_OF(aInputL, i));
vinL1 = vld1q_f32(ADDRESS_OF(aInputL, i+4));
vinL2 = vld1q_f32(ADDRESS_OF(aInputL, i+8));
vinL3 = vld1q_f32(ADDRESS_OF(aInputL, i+12));
vinR0 = vld1q_f32(ADDRESS_OF(aInputR, i));
vinR1 = vld1q_f32(ADDRESS_OF(aInputR, i+4));
vinR2 = vld1q_f32(ADDRESS_OF(aInputR, i+8));
vinR3 = vld1q_f32(ADDRESS_OF(aInputR, i+12));
voutL0 = vmlaq_f32(vinL0, vinR0, vscaleL);
voutL1 = vmlaq_f32(vinL1, vinR1, vscaleL);
voutL2 = vmlaq_f32(vinL2, vinR2, vscaleL);
voutL3 = vmlaq_f32(vinL3, vinR3, vscaleL);
vst1q_f32(ADDRESS_OF(aOutputL, i), voutL0);
vst1q_f32(ADDRESS_OF(aOutputL, i+4), voutL1);
vst1q_f32(ADDRESS_OF(aOutputL, i+8), voutL2);
vst1q_f32(ADDRESS_OF(aOutputL, i+12), voutL3);
voutR0 = vmulq_f32(vinR0, vscaleR);
voutR1 = vmulq_f32(vinR1, vscaleR);
voutR2 = vmulq_f32(vinR2, vscaleR);
voutR3 = vmulq_f32(vinR3, vscaleR);
vst1q_f32(ADDRESS_OF(aOutputR, i), voutR0);
vst1q_f32(ADDRESS_OF(aOutputR, i+4), voutR1);
vst1q_f32(ADDRESS_OF(aOutputR, i+8), voutR2);
vst1q_f32(ADDRESS_OF(aOutputR, i+12), voutR3);
}
} else {
for (uint32_t i = 0; i < WEBAUDIO_BLOCK_SIZE; i+=16) {
vinL0 = vld1q_f32(ADDRESS_OF(aInputL, i));
vinL1 = vld1q_f32(ADDRESS_OF(aInputL, i+4));
vinL2 = vld1q_f32(ADDRESS_OF(aInputL, i+8));
vinL3 = vld1q_f32(ADDRESS_OF(aInputL, i+12));
vinR0 = vld1q_f32(ADDRESS_OF(aInputR, i));
vinR1 = vld1q_f32(ADDRESS_OF(aInputR, i+4));
vinR2 = vld1q_f32(ADDRESS_OF(aInputR, i+8));
vinR3 = vld1q_f32(ADDRESS_OF(aInputR, i+12));
voutL0 = vmulq_f32(vinL0, vscaleL);
voutL1 = vmulq_f32(vinL1, vscaleL);
voutL2 = vmulq_f32(vinL2, vscaleL);
voutL3 = vmulq_f32(vinL3, vscaleL);
vst1q_f32(ADDRESS_OF(aOutputL, i), voutL0);
vst1q_f32(ADDRESS_OF(aOutputL, i+4), voutL1);
vst1q_f32(ADDRESS_OF(aOutputL, i+8), voutL2);
vst1q_f32(ADDRESS_OF(aOutputL, i+12), voutL3);
voutR0 = vmlaq_f32(vinR0, vinL0, vscaleR);
voutR1 = vmlaq_f32(vinR1, vinL1, vscaleR);
voutR2 = vmlaq_f32(vinR2, vinL2, vscaleR);
voutR3 = vmlaq_f32(vinR3, vinL3, vscaleR);
vst1q_f32(ADDRESS_OF(aOutputR, i), voutR0);
vst1q_f32(ADDRESS_OF(aOutputR, i+4), voutR1);
vst1q_f32(ADDRESS_OF(aOutputR, i+8), voutR2);
vst1q_f32(ADDRESS_OF(aOutputR, i+12), voutR3);
}
}
}
}
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