Remove runtime NEON detection

webrtc/common_audio/signal_processing/include/signal_processing_library.h

 /*
  *  Copyright (c) 2012 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.
  */
 
@@ skipping 88 matching lines @@
 #endif
 
 #define WEBRTC_SPL_MEMCPY_W16(v1, v2, length) \
   memcpy(v1, v2, (length) * sizeof(int16_t))
 
 // inline functions:
 #include "webrtc/common_audio/signal_processing/include/spl_inl.h"
 
 // Initialize SPL. Currently it contains only function pointer initialization.
 // If the underlying platform is known to be ARM-Neon (WEBRTC_HAS_NEON defined),
-// the pointers will be assigned to code optimized for Neon; otherwise
-// if run-time Neon detection (WEBRTC_DETECT_NEON) is enabled, the pointers
-// will be assigned to either Neon code or generic C code; otherwise, generic C
-// code will be assigned.
+// the pointers will be assigned to code optimized for Neon; otherwise, generic
+// C code will be assigned.
 // Note that this function MUST be called in any application that uses SPL
 // functions.
 void WebRtcSpl_Init();
 
 int16_t WebRtcSpl_GetScalingSquare(int16_t* in_vector,
                                    size_t in_vector_length,
                                    size_t times);
 
 // Copy and set operations. Implementation in copy_set_operations.c.
 // Descriptions at bottom of file.
@@ skipping 23 matching lines @@
 // Returns the largest absolute value in a signed 16-bit vector.
 //
 // Input:
 //      - vector : 16-bit input vector.
 //      - length : Number of samples in vector.
 //
 // Return value  : Maximum absolute value in vector.
 typedef int16_t (*MaxAbsValueW16)(const int16_t* vector, size_t length);
 extern MaxAbsValueW16 WebRtcSpl_MaxAbsValueW16;
 int16_t WebRtcSpl_MaxAbsValueW16C(const int16_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int16_t WebRtcSpl_MaxAbsValueW16Neon(const int16_t* vector, size_t length);
 #endif
 #if defined(MIPS32_LE)
 int16_t WebRtcSpl_MaxAbsValueW16_mips(const int16_t* vector, size_t length);
 #endif
 
 // Returns the largest absolute value in a signed 32-bit vector.
 //
 // Input:
 //      - vector : 32-bit input vector.
 //      - length : Number of samples in vector.
 //
 // Return value  : Maximum absolute value in vector.
 typedef int32_t (*MaxAbsValueW32)(const int32_t* vector, size_t length);
 extern MaxAbsValueW32 WebRtcSpl_MaxAbsValueW32;
 int32_t WebRtcSpl_MaxAbsValueW32C(const int32_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int32_t WebRtcSpl_MaxAbsValueW32Neon(const int32_t* vector, size_t length);
 #endif
 #if defined(MIPS_DSP_R1_LE)
 int32_t WebRtcSpl_MaxAbsValueW32_mips(const int32_t* vector, size_t length);
 #endif
 
 // Returns the maximum value of a 16-bit vector.
 //
 // Input:
 //      - vector : 16-bit input vector.
 //      - length : Number of samples in vector.
 //
 // Return value  : Maximum sample value in |vector|.
 typedef int16_t (*MaxValueW16)(const int16_t* vector, size_t length);
 extern MaxValueW16 WebRtcSpl_MaxValueW16;
 int16_t WebRtcSpl_MaxValueW16C(const int16_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int16_t WebRtcSpl_MaxValueW16Neon(const int16_t* vector, size_t length);
 #endif
 #if defined(MIPS32_LE)
 int16_t WebRtcSpl_MaxValueW16_mips(const int16_t* vector, size_t length);
 #endif
 
 // Returns the maximum value of a 32-bit vector.
 //
 // Input:
 //      - vector : 32-bit input vector.
 //      - length : Number of samples in vector.
 //
 // Return value  : Maximum sample value in |vector|.
 typedef int32_t (*MaxValueW32)(const int32_t* vector, size_t length);
 extern MaxValueW32 WebRtcSpl_MaxValueW32;
 int32_t WebRtcSpl_MaxValueW32C(const int32_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int32_t WebRtcSpl_MaxValueW32Neon(const int32_t* vector, size_t length);
 #endif
 #if defined(MIPS32_LE)
 int32_t WebRtcSpl_MaxValueW32_mips(const int32_t* vector, size_t length);
 #endif
 
 // Returns the minimum value of a 16-bit vector.
 //
 // Input:
 //      - vector : 16-bit input vector.
 //      - length : Number of samples in vector.
 //
 // Return value  : Minimum sample value in |vector|.
 typedef int16_t (*MinValueW16)(const int16_t* vector, size_t length);
 extern MinValueW16 WebRtcSpl_MinValueW16;
 int16_t WebRtcSpl_MinValueW16C(const int16_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int16_t WebRtcSpl_MinValueW16Neon(const int16_t* vector, size_t length);
 #endif
 #if defined(MIPS32_LE)
 int16_t WebRtcSpl_MinValueW16_mips(const int16_t* vector, size_t length);
 #endif
 
 // Returns the minimum value of a 32-bit vector.
 //
 // Input:
 //      - vector : 32-bit input vector.
 //      - length : Number of samples in vector.
 //
 // Return value  : Minimum sample value in |vector|.
 typedef int32_t (*MinValueW32)(const int32_t* vector, size_t length);
 extern MinValueW32 WebRtcSpl_MinValueW32;
 int32_t WebRtcSpl_MinValueW32C(const int32_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int32_t WebRtcSpl_MinValueW32Neon(const int32_t* vector, size_t length);
 #endif
 #if defined(MIPS32_LE)
 int32_t WebRtcSpl_MinValueW32_mips(const int32_t* vector, size_t length);
 #endif
 
 // Returns the vector index to the largest absolute value of a 16-bit vector.
 //
 // Input:
 //      - vector : 16-bit input vector.
@@ skipping 272 matching lines @@
                                  int right_shifts,
                                  int step_seq2);
 extern CrossCorrelation WebRtcSpl_CrossCorrelation;
 void WebRtcSpl_CrossCorrelationC(int32_t* cross_correlation,
                                  const int16_t* seq1,
                                  const int16_t* seq2,
                                  size_t dim_seq,
                                  size_t dim_cross_correlation,
                                  int right_shifts,
                                  int step_seq2);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 void WebRtcSpl_CrossCorrelationNeon(int32_t* cross_correlation,
                                     const int16_t* seq1,
                                     const int16_t* seq2,
                                     size_t dim_seq,
                                     size_t dim_cross_correlation,
                                     int right_shifts,
                                     int step_seq2);
 #endif
 #if defined(MIPS32_LE)
 void WebRtcSpl_CrossCorrelation_mips(int32_t* cross_correlation,
@@ skipping 146 matching lines @@
                               size_t delay);
 extern DownsampleFast WebRtcSpl_DownsampleFast;
 int WebRtcSpl_DownsampleFastC(const int16_t* data_in,
                               size_t data_in_length,
                               int16_t* data_out,
                               size_t data_out_length,
                               const int16_t* __restrict coefficients,
                               size_t coefficients_length,
                               int factor,
                               size_t delay);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int WebRtcSpl_DownsampleFastNeon(const int16_t* data_in,
                                  size_t data_in_length,
                                  int16_t* data_out,
                                  size_t data_out_length,
                                  const int16_t* __restrict coefficients,
                                  size_t coefficients_length,
                                  int factor,
                                  size_t delay);
 #endif
 #if defined(MIPS32_LE)
@@ skipping 924 matching lines @@
 // This function multiply a 16-bit word by a 16-bit word, and accumulate this
 // value to a 32-bit integer.
 //
 // Input:
 //      - a    : The value of the first 16-bit word.
 //      - b    : The value of the second 16-bit word.
 //      - c    : The value of an 32-bit integer.
 //
 // Return Value: The value of a * b + c.
 //