summaryrefslogtreecommitdiffstats
path: root/dom/media/webaudio/AudioNodeEngineGenericImpl.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--dom/media/webaudio/AudioNodeEngineGenericImpl.h341
1 files changed, 341 insertions, 0 deletions
diff --git a/dom/media/webaudio/AudioNodeEngineGenericImpl.h b/dom/media/webaudio/AudioNodeEngineGenericImpl.h
new file mode 100644
index 0000000000..b7fabc7a0b
--- /dev/null
+++ b/dom/media/webaudio/AudioNodeEngineGenericImpl.h
@@ -0,0 +1,341 @@
+/* -*- 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/. */
+
+#ifndef MOZILLA_AUDIONODEENGINEGENERICIMPL_H_
+#define MOZILLA_AUDIONODEENGINEGENERICIMPL_H_
+
+#include "AudioNodeEngineGeneric.h"
+#include "AlignmentUtils.h"
+
+#if defined(__GNUC__) && __GNUC__ > 7
+# define MOZ_PRAGMA(tokens) _Pragma(#tokens)
+# define MOZ_UNROLL(factor) MOZ_PRAGMA(GCC unroll factor)
+#elif defined(__INTEL_COMPILER) || (defined(__clang__) && __clang_major__ > 3)
+# define MOZ_PRAGMA(tokens) _Pragma(#tokens)
+# define MOZ_UNROLL(factor) MOZ_PRAGMA(unroll factor)
+#else
+# define MOZ_UNROLL(_)
+#endif
+
+namespace mozilla {
+
+template <class Arch>
+static bool is_aligned(const void* ptr) {
+ return (reinterpret_cast<uintptr_t>(ptr) &
+ ~(static_cast<uintptr_t>(Arch::alignment()) - 1)) ==
+ reinterpret_cast<uintptr_t>(ptr);
+};
+
+template <class Arch>
+void Engine<Arch>::AudioBufferAddWithScale(const float* aInput, float aScale,
+ float* aOutput, uint32_t aSize) {
+ if constexpr (Arch::requires_alignment()) {
+ if (aScale == 1.0f) {
+ while (!is_aligned<Arch>(aInput) || !is_aligned<Arch>(aOutput)) {
+ if (!aSize) return;
+ *aOutput += *aInput;
+ ++aOutput;
+ ++aInput;
+ --aSize;
+ }
+ } else {
+ while (!is_aligned<Arch>(aInput) || !is_aligned<Arch>(aOutput)) {
+ if (!aSize) return;
+ *aOutput += *aInput * aScale;
+ ++aOutput;
+ ++aInput;
+ --aSize;
+ }
+ }
+ }
+ MOZ_ASSERT(is_aligned<Arch>(aInput), "aInput is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aOutput), "aOutput is aligned");
+
+ xsimd::batch<float, Arch> vgain(aScale);
+
+ uint32_t aVSize = aSize & ~(xsimd::batch<float, Arch>::size - 1);
+ MOZ_UNROLL(4)
+ for (unsigned i = 0; i < aVSize; i += xsimd::batch<float, Arch>::size) {
+ auto vin1 = xsimd::batch<float, Arch>::load_aligned(&aInput[i]);
+ auto vin2 = xsimd::batch<float, Arch>::load_aligned(&aOutput[i]);
+ auto vout = xsimd::fma(vin1, vgain, vin2);
+ vout.store_aligned(&aOutput[i]);
+ }
+
+ for (unsigned i = aVSize; i < aSize; ++i) {
+ aOutput[i] += aInput[i] * aScale;
+ }
+}
+
+template <class Arch>
+void Engine<Arch>::AudioBlockCopyChannelWithScale(const float* aInput,
+ float aScale,
+ float* aOutput) {
+ MOZ_ASSERT(is_aligned<Arch>(aInput), "aInput is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aOutput), "aOutput is aligned");
+
+ MOZ_ASSERT((WEBAUDIO_BLOCK_SIZE % xsimd::batch<float, Arch>::size == 0),
+ "requires tail processing");
+
+ xsimd::batch<float, Arch> vgain = (aScale);
+
+ MOZ_UNROLL(4)
+ for (unsigned i = 0; i < WEBAUDIO_BLOCK_SIZE;
+ i += xsimd::batch<float, Arch>::size) {
+ auto vin = xsimd::batch<float, Arch>::load_aligned(&aInput[i]);
+ auto vout = vin * vgain;
+ vout.store_aligned(&aOutput[i]);
+ }
+};
+
+template <class Arch>
+void Engine<Arch>::AudioBlockCopyChannelWithScale(
+ const float aInput[WEBAUDIO_BLOCK_SIZE],
+ const float aScale[WEBAUDIO_BLOCK_SIZE],
+ float aOutput[WEBAUDIO_BLOCK_SIZE]) {
+ MOZ_ASSERT(is_aligned<Arch>(aInput), "aInput is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aOutput), "aOutput is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aScale), "aScale is aligned");
+
+ MOZ_ASSERT((WEBAUDIO_BLOCK_SIZE % xsimd::batch<float, Arch>::size == 0),
+ "requires tail processing");
+
+ MOZ_UNROLL(4)
+ for (unsigned i = 0; i < WEBAUDIO_BLOCK_SIZE;
+ i += xsimd::batch<float, Arch>::size) {
+ auto vscaled = xsimd::batch<float, Arch>::load_aligned(&aScale[i]);
+ auto vin = xsimd::batch<float, Arch>::load_aligned(&aInput[i]);
+ auto vout = vin * vscaled;
+ vout.store_aligned(&aOutput[i]);
+ }
+};
+
+template <class Arch>
+void Engine<Arch>::AudioBufferInPlaceScale(float* aBlock, float aScale,
+ uint32_t aSize) {
+ MOZ_ASSERT(is_aligned<Arch>(aBlock), "aBlock is aligned");
+
+ xsimd::batch<float, Arch> vgain(aScale);
+
+ uint32_t aVSize = aSize & ~(xsimd::batch<float, Arch>::size - 1);
+ MOZ_UNROLL(4)
+ for (unsigned i = 0; i < aVSize; i += xsimd::batch<float, Arch>::size) {
+ auto vin = xsimd::batch<float, Arch>::load_aligned(&aBlock[i]);
+ auto vout = vin * vgain;
+ vout.store_aligned(&aBlock[i]);
+ }
+ for (unsigned i = aVSize; i < aSize; ++i) aBlock[i] *= aScale;
+};
+
+template <class Arch>
+void Engine<Arch>::AudioBufferInPlaceScale(float* aBlock, float* aScale,
+ uint32_t aSize) {
+ MOZ_ASSERT(is_aligned<Arch>(aBlock), "aBlock is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aScale), "aScale is aligned");
+
+ uint32_t aVSize = aSize & ~(xsimd::batch<float, Arch>::size - 1);
+ MOZ_UNROLL(4)
+ for (unsigned i = 0; i < aVSize; i += xsimd::batch<float, Arch>::size) {
+ auto vin = xsimd::batch<float, Arch>::load_aligned(&aBlock[i]);
+ auto vgain = xsimd::batch<float, Arch>::load_aligned(&aScale[i]);
+ auto vout = vin * vgain;
+ vout.store_aligned(&aBlock[i]);
+ }
+ for (uint32_t i = aVSize; i < aSize; ++i) {
+ *aBlock++ *= *aScale++;
+ }
+};
+
+template <class Arch>
+void Engine<Arch>::AudioBlockPanStereoToStereo(
+ 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]) {
+ MOZ_ASSERT(is_aligned<Arch>(aInputL), "aInputL is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aInputR), "aInputR is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aOutputL), "aOutputL is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aOutputR), "aOutputR is aligned");
+
+ MOZ_ASSERT((WEBAUDIO_BLOCK_SIZE % xsimd::batch<float, Arch>::size == 0),
+ "requires tail processing");
+
+ xsimd::batch<float, Arch> vgainl(aGainL);
+ xsimd::batch<float, Arch> vgainr(aGainR);
+
+ if (aIsOnTheLeft) {
+ MOZ_UNROLL(2)
+ for (unsigned i = 0; i < WEBAUDIO_BLOCK_SIZE;
+ i += xsimd::batch<float, Arch>::size) {
+ auto vinl = xsimd::batch<float, Arch>::load_aligned(&aInputL[i]);
+ auto vinr = xsimd::batch<float, Arch>::load_aligned(&aInputR[i]);
+
+ /* left channel : aOutputL = aInputL + aInputR * gainL */
+ auto vout = xsimd::fma(vinr, vgainl, vinl);
+ vout.store_aligned(&aOutputL[i]);
+
+ /* right channel : aOutputR = aInputR * gainR */
+ auto vscaled = vinr * vgainr;
+ vscaled.store_aligned(&aOutputR[i]);
+ }
+ } else {
+ MOZ_UNROLL(2)
+ for (unsigned i = 0; i < WEBAUDIO_BLOCK_SIZE;
+ i += xsimd::batch<float, Arch>::size) {
+ auto vinl = xsimd::batch<float, Arch>::load_aligned(&aInputL[i]);
+ auto vinr = xsimd::batch<float, Arch>::load_aligned(&aInputR[i]);
+
+ /* left channel : aInputL * gainL */
+ auto vscaled = vinl * vgainl;
+ vscaled.store_aligned(&aOutputL[i]);
+
+ /* right channel: aOutputR = aInputR + aInputL * gainR */
+ auto vout = xsimd::fma(vinl, vgainr, vinr);
+ vout.store_aligned(&aOutputR[i]);
+ }
+ }
+};
+
+template <class Arch>
+void Engine<Arch>::BufferComplexMultiply(const float* aInput,
+ const float* aScale, float* aOutput,
+ uint32_t aSize) {
+ MOZ_ASSERT(is_aligned<Arch>(aInput), "aInput is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aOutput), "aOutput is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aScale), "aScale is aligned");
+ MOZ_ASSERT((aSize % xsimd::batch<float, Arch>::size == 0),
+ "requires tail processing");
+
+ MOZ_UNROLL(2)
+ for (unsigned i = 0; i < aSize * 2;
+ i += 2 * xsimd::batch<std::complex<float>, Arch>::size) {
+ auto in1 = xsimd::batch<std::complex<float>, Arch>::load_aligned(
+ reinterpret_cast<const std::complex<float>*>(&aInput[i]));
+ auto in2 = xsimd::batch<std::complex<float>, Arch>::load_aligned(
+ reinterpret_cast<const std::complex<float>*>(&aScale[i]));
+ auto out = in1 * in2;
+ out.store_aligned(reinterpret_cast<std::complex<float>*>(&aOutput[i]));
+ }
+};
+
+template <class Arch>
+float Engine<Arch>::AudioBufferSumOfSquares(const float* aInput,
+ uint32_t aLength) {
+ float sum = 0.f;
+
+ if constexpr (Arch::requires_alignment()) {
+ while (!is_aligned<Arch>(aInput)) {
+ if (!aLength) {
+ return sum;
+ }
+ sum += *aInput * *aInput;
+ ++aInput;
+ --aLength;
+ }
+ }
+
+ MOZ_ASSERT(is_aligned<Arch>(aInput), "aInput is aligned");
+
+ constexpr uint32_t unroll_factor = 4;
+ xsimd::batch<float, Arch> accs[unroll_factor] = {0.f, 0.f, 0.f, 0.f};
+
+ uint32_t vLength =
+ aLength & ~(unroll_factor * xsimd::batch<float, Arch>::size - 1);
+
+ for (uint32_t i = 0; i < vLength;
+ i += unroll_factor * xsimd::batch<float, Arch>::size) {
+ MOZ_UNROLL(4)
+ for (uint32_t j = 0; j < unroll_factor; ++j) {
+ auto in = xsimd::batch<float, Arch>::load_aligned(
+ &aInput[i + xsimd::batch<float, Arch>::size * j]);
+ accs[j] = xsimd::fma(in, in, accs[j]);
+ }
+ }
+
+ sum += reduce_add((accs[0] + accs[1]) + (accs[2] + accs[3]));
+ for (uint32_t i = vLength; i < aLength; ++i) sum += aInput[i] * aInput[i];
+ return sum;
+};
+
+template <class Arch>
+void Engine<Arch>::NaNToZeroInPlace(float* aSamples, size_t aCount) {
+ if constexpr (Arch::requires_alignment()) {
+ while (!is_aligned<Arch>(aSamples)) {
+ if (!aCount) {
+ return;
+ }
+ if (*aSamples != *aSamples) {
+ *aSamples = 0.0;
+ }
+ ++aSamples;
+ --aCount;
+ }
+ }
+
+ MOZ_ASSERT(is_aligned<Arch>(aSamples), "aSamples is aligned");
+
+ uint32_t vCount = aCount & ~(xsimd::batch<float, Arch>::size - 1);
+
+ MOZ_UNROLL(4)
+ for (uint32_t i = 0; i < vCount; i += xsimd::batch<float, Arch>::size) {
+ auto vin = xsimd::batch<float, Arch>::load_aligned(&aSamples[i]);
+ auto vout =
+ xsimd::select(xsimd::isnan(vin), xsimd::batch<float, Arch>(0.f), vin);
+ vout.store_aligned(&aSamples[i]);
+ }
+
+ for (uint32_t i = vCount; i < aCount; i++) {
+ if (aSamples[i] != aSamples[i]) {
+ aSamples[i] = 0.0;
+ }
+ }
+};
+
+template <class Arch>
+void Engine<Arch>::AudioBlockPanStereoToStereo(
+ const float aInputL[WEBAUDIO_BLOCK_SIZE],
+ const float aInputR[WEBAUDIO_BLOCK_SIZE],
+ const float aGainL[WEBAUDIO_BLOCK_SIZE],
+ const float aGainR[WEBAUDIO_BLOCK_SIZE],
+ const bool aIsOnTheLeft[WEBAUDIO_BLOCK_SIZE],
+ float aOutputL[WEBAUDIO_BLOCK_SIZE], float aOutputR[WEBAUDIO_BLOCK_SIZE]) {
+ MOZ_ASSERT(is_aligned<Arch>(aInputL), "aInputL is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aInputR), "aInputR is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aGainL), "aGainL is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aGainR), "aGainR is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aIsOnTheLeft), "aIsOnTheLeft is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aOutputL), "aOutputL is aligned");
+ MOZ_ASSERT(is_aligned<Arch>(aOutputR), "aOutputR is aligned");
+
+ MOZ_ASSERT((WEBAUDIO_BLOCK_SIZE % xsimd::batch<float, Arch>::size == 0),
+ "requires tail processing");
+
+ MOZ_UNROLL(2)
+ for (uint32_t i = 0; i < WEBAUDIO_BLOCK_SIZE;
+ i += xsimd::batch<float, Arch>::size) {
+ auto mask = xsimd::batch_bool<float, Arch>::load_aligned(&aIsOnTheLeft[i]);
+
+ auto inputL = xsimd::batch<float, Arch>::load_aligned(&aInputL[i]);
+ auto inputR = xsimd::batch<float, Arch>::load_aligned(&aInputR[i]);
+ auto gainL = xsimd::batch<float, Arch>::load_aligned(&aGainL[i]);
+ auto gainR = xsimd::batch<float, Arch>::load_aligned(&aGainR[i]);
+
+ auto outL_true = xsimd::fma(inputR, gainL, inputL);
+ auto outR_true = inputR * gainR;
+
+ auto outL_false = inputL * gainL;
+ auto outR_false = xsimd::fma(inputL, gainR, inputR);
+
+ auto outL = xsimd::select(mask, outL_true, outL_false);
+ auto outR = xsimd::select(mask, outR_true, outR_false);
+
+ outL.store_aligned(&aOutputL[i]);
+ outR.store_aligned(&aOutputR[i]);
+ }
+}
+
+} // namespace mozilla
+
+#endif