Index: webrtc/modules/audio_processing/utility/ooura_fft_tables_neon_sse2.h |
diff --git a/webrtc/modules/audio_processing/utility/ooura_fft_tables_neon_sse2.h b/webrtc/modules/audio_processing/utility/ooura_fft_tables_neon_sse2.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..1ed646d6f64977c3b46e800f7a14a90c9659942f |
--- /dev/null |
+++ b/webrtc/modules/audio_processing/utility/ooura_fft_tables_neon_sse2.h |
@@ -0,0 +1,94 @@ |
+/* |
+ * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. An additional intellectual property rights grant can be found |
+ * in the file PATENTS. All contributing project authors may |
+ * be found in the AUTHORS file in the root of the source tree. |
+ */ |
+ |
+#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_OOURA_FFT_TABLES_NEON_SSE2_H_ |
+#define WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_OOURA_FFT_TABLES_NEON_SSE2_H_ |
+ |
+#include "webrtc/modules/audio_processing/utility/ooura_fft.h" |
+ |
+#ifdef _MSC_VER /* visual c++ */ |
+#define ALIGN16_BEG __declspec(align(16)) |
+#define ALIGN16_END |
+#else /* gcc or icc */ |
+#define ALIGN16_BEG |
+#define ALIGN16_END __attribute__((aligned(16))) |
+#endif |
+ |
+namespace webrtc { |
+ |
+// These tables used to be computed at run-time. For example, refer to: |
+// https://code.google.com/p/webrtc/source/browse/trunk/webrtc/modules/audio_processing/utility/apm_rdft.c?r=6564 |
+// to see the initialization code. |
+#if defined(WEBRTC_ARCH_X86_FAMILY) || defined(WEBRTC_HAS_NEON) |
+// Constants used by SSE2 and NEON but initialized in the C path. |
+const ALIGN16_BEG float ALIGN16_END k_swap_sign[4] = {-1.f, 1.f, -1.f, 1.f}; |
+ |
+ALIGN16_BEG const float ALIGN16_END rdft_wk1r[32] = { |
+ 1.000000000f, 1.000000000f, 0.707106769f, 0.707106769f, 0.923879564f, |
+ 0.923879564f, 0.382683456f, 0.382683456f, 0.980785251f, 0.980785251f, |
+ 0.555570245f, 0.555570245f, 0.831469595f, 0.831469595f, 0.195090324f, |
+ 0.195090324f, 0.995184720f, 0.995184720f, 0.634393334f, 0.634393334f, |
+ 0.881921291f, 0.881921291f, 0.290284663f, 0.290284663f, 0.956940353f, |
+ 0.956940353f, 0.471396744f, 0.471396744f, 0.773010433f, 0.773010433f, |
+ 0.098017141f, 0.098017141f, |
+}; |
+ALIGN16_BEG const float ALIGN16_END rdft_wk2r[32] = { |
+ 1.000000000f, 1.000000000f, -0.000000000f, -0.000000000f, 0.707106769f, |
+ 0.707106769f, -0.707106769f, -0.707106769f, 0.923879564f, 0.923879564f, |
+ -0.382683456f, -0.382683456f, 0.382683456f, 0.382683456f, -0.923879564f, |
+ -0.923879564f, 0.980785251f, 0.980785251f, -0.195090324f, -0.195090324f, |
+ 0.555570245f, 0.555570245f, -0.831469595f, -0.831469595f, 0.831469595f, |
+ 0.831469595f, -0.555570245f, -0.555570245f, 0.195090324f, 0.195090324f, |
+ -0.980785251f, -0.980785251f, |
+}; |
+ALIGN16_BEG const float ALIGN16_END rdft_wk3r[32] = { |
+ 1.000000000f, 1.000000000f, -0.707106769f, -0.707106769f, 0.382683456f, |
+ 0.382683456f, -0.923879564f, -0.923879564f, 0.831469536f, 0.831469536f, |
+ -0.980785251f, -0.980785251f, -0.195090353f, -0.195090353f, -0.555570245f, |
+ -0.555570245f, 0.956940353f, 0.956940353f, -0.881921172f, -0.881921172f, |
+ 0.098017156f, 0.098017156f, -0.773010492f, -0.773010492f, 0.634393334f, |
+ 0.634393334f, -0.995184720f, -0.995184720f, -0.471396863f, -0.471396863f, |
+ -0.290284693f, -0.290284693f, |
+}; |
+ALIGN16_BEG const float ALIGN16_END rdft_wk1i[32] = { |
+ -0.000000000f, 0.000000000f, -0.707106769f, 0.707106769f, -0.382683456f, |
+ 0.382683456f, -0.923879564f, 0.923879564f, -0.195090324f, 0.195090324f, |
+ -0.831469595f, 0.831469595f, -0.555570245f, 0.555570245f, -0.980785251f, |
+ 0.980785251f, -0.098017141f, 0.098017141f, -0.773010433f, 0.773010433f, |
+ -0.471396744f, 0.471396744f, -0.956940353f, 0.956940353f, -0.290284663f, |
+ 0.290284663f, -0.881921291f, 0.881921291f, -0.634393334f, 0.634393334f, |
+ -0.995184720f, 0.995184720f, |
+}; |
+ALIGN16_BEG const float ALIGN16_END rdft_wk2i[32] = { |
+ -0.000000000f, 0.000000000f, -1.000000000f, 1.000000000f, -0.707106769f, |
+ 0.707106769f, -0.707106769f, 0.707106769f, -0.382683456f, 0.382683456f, |
+ -0.923879564f, 0.923879564f, -0.923879564f, 0.923879564f, -0.382683456f, |
+ 0.382683456f, -0.195090324f, 0.195090324f, -0.980785251f, 0.980785251f, |
+ -0.831469595f, 0.831469595f, -0.555570245f, 0.555570245f, -0.555570245f, |
+ 0.555570245f, -0.831469595f, 0.831469595f, -0.980785251f, 0.980785251f, |
+ -0.195090324f, 0.195090324f, |
+}; |
+ALIGN16_BEG const float ALIGN16_END rdft_wk3i[32] = { |
+ -0.000000000f, 0.000000000f, -0.707106769f, 0.707106769f, -0.923879564f, |
+ 0.923879564f, 0.382683456f, -0.382683456f, -0.555570245f, 0.555570245f, |
+ -0.195090353f, 0.195090353f, -0.980785251f, 0.980785251f, 0.831469536f, |
+ -0.831469536f, -0.290284693f, 0.290284693f, -0.471396863f, 0.471396863f, |
+ -0.995184720f, 0.995184720f, 0.634393334f, -0.634393334f, -0.773010492f, |
+ 0.773010492f, 0.098017156f, -0.098017156f, -0.881921172f, 0.881921172f, |
+ 0.956940353f, -0.956940353f, |
+}; |
+ALIGN16_BEG const float ALIGN16_END cftmdl_wk1r[4] = { |
+ 0.707106769f, 0.707106769f, 0.707106769f, -0.707106769f, |
+}; |
+#endif |
+ |
+} // namespace webrtc |
+ |
+#endif // WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_OOURA_FFT_TABLES_NEON_SSE2_H_ |