summaryrefslogtreecommitdiffstats
path: root/media/base/audio_renderer_mixer.cc
diff options
context:
space:
mode:
Diffstat (limited to 'media/base/audio_renderer_mixer.cc')
-rw-r--r--media/base/audio_renderer_mixer.cc54
1 files changed, 4 insertions, 50 deletions
diff --git a/media/base/audio_renderer_mixer.cc b/media/base/audio_renderer_mixer.cc
index b9ec259..e48b171 100644
--- a/media/base/audio_renderer_mixer.cc
+++ b/media/base/audio_renderer_mixer.cc
@@ -4,17 +4,12 @@
#include "media/base/audio_renderer_mixer.h"
-#if defined(ARCH_CPU_X86_FAMILY) && defined(__SSE__)
-#include <xmmintrin.h>
-#endif
-
#include "base/bind.h"
#include "base/bind_helpers.h"
-#include "base/cpu.h"
#include "base/logging.h"
-#include "base/memory/aligned_memory.h"
#include "media/audio/audio_util.h"
#include "media/base/limits.h"
+#include "media/base/vector_math.h"
namespace media {
@@ -117,8 +112,9 @@ void AudioRendererMixer::ProvideInput(AudioBus* audio_bus) {
// Volume adjust and mix each mixer input into |audio_bus| after rendering.
for (int i = 0; i < audio_bus->channels(); ++i) {
- VectorFMAC(mixer_input_audio_bus_->channel(i), volume, frames_filled,
- audio_bus->channel(i));
+ vector_math::FMAC(
+ mixer_input_audio_bus_->channel(i), volume, frames_filled,
+ audio_bus->channel(i));
}
}
}
@@ -133,46 +129,4 @@ void AudioRendererMixer::OnRenderError() {
}
}
-void AudioRendererMixer::VectorFMAC(const float src[], float scale, int len,
- float dest[]) {
- // Rely on function level static initialization to keep VectorFMACProc
- // selection thread safe.
- typedef void (*VectorFMACProc)(const float src[], float scale, int len,
- float dest[]);
-#if defined(ARCH_CPU_X86_FAMILY) && defined(__SSE__)
- static const VectorFMACProc kVectorFMACProc =
- base::CPU().has_sse() ? VectorFMAC_SSE : VectorFMAC_C;
-#else
- static const VectorFMACProc kVectorFMACProc = VectorFMAC_C;
-#endif
-
- return kVectorFMACProc(src, scale, len, dest);
-}
-
-void AudioRendererMixer::VectorFMAC_C(const float src[], float scale, int len,
- float dest[]) {
- for (int i = 0; i < len; ++i)
- dest[i] += src[i] * scale;
-}
-
-#if defined(ARCH_CPU_X86_FAMILY) && defined(__SSE__)
-void AudioRendererMixer::VectorFMAC_SSE(const float src[], float scale, int len,
- float dest[]) {
- // Ensure |src| and |dest| are 16-byte aligned.
- DCHECK_EQ(0u, reinterpret_cast<uintptr_t>(src) & 0x0F);
- DCHECK_EQ(0u, reinterpret_cast<uintptr_t>(dest) & 0x0F);
-
- __m128 m_scale = _mm_set_ps1(scale);
- int rem = len % 4;
- for (int i = 0; i < len - rem; i += 4) {
- _mm_store_ps(dest + i, _mm_add_ps(_mm_load_ps(dest + i),
- _mm_mul_ps(_mm_load_ps(src + i), m_scale)));
- }
-
- // Handle any remaining values that wouldn't fit in an SSE pass.
- if (rem)
- VectorFMAC_C(src + len - rem, scale, rem, dest + len - rem);
-}
-#endif
-
} // namespace media