1 files changed, 137 insertions, 0 deletions
diff --git a/src/common_audio/signal_processing/include/spl_inl_armv7.h b/src/common_audio/signal_processing/include/spl_inl_armv7.h
new file mode 100644
index 0000000000..689c2baeea
--- /dev/null
+++ b/src/common_audio/signal_processing/include/spl_inl_armv7.h
@@ -0,0 +1,137 @@
+/*
+ *  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.
+ */
+
+
+// This header file includes the inline functions for ARM processors in
+// the fix point signal processing library.
+
+#ifndef WEBRTC_SPL_SPL_INL_ARMV7_H_
+#define WEBRTC_SPL_SPL_INL_ARMV7_H_
+
+static __inline WebRtc_Word32 WEBRTC_SPL_MUL_16_32_RSFT16(WebRtc_Word16 a,
+                                                          WebRtc_Word32 b) {
+  WebRtc_Word32 tmp;
+  __asm__("smulwb %0, %1, %2":"=r"(tmp):"r"(b), "r"(a));
+  return tmp;
+}
+
+static __inline WebRtc_Word32 WEBRTC_SPL_MUL_32_32_RSFT32(WebRtc_Word16 a,
+                                                          WebRtc_Word16 b,
+                                                          WebRtc_Word32 c) {
+  WebRtc_Word32 tmp;
+  __asm__("pkhbt %0, %1, %2, lsl #16" : "=r"(tmp) : "r"(b), "r"(a));
+  __asm__("smmul %0, %1, %2":"=r"(tmp):"r"(tmp), "r"(c));
+  return tmp;
+}
+
+static __inline WebRtc_Word32 WEBRTC_SPL_MUL_32_32_RSFT32BI(WebRtc_Word32 a,
+                                                            WebRtc_Word32 b) {
+  WebRtc_Word32 tmp;
+  __asm__("smmul %0, %1, %2":"=r"(tmp):"r"(a), "r"(b));
+  return tmp;
+}
+
+static __inline WebRtc_Word32 WEBRTC_SPL_MUL_16_16(WebRtc_Word16 a,
+                                                   WebRtc_Word16 b) {
+  WebRtc_Word32 tmp;
+  __asm__("smulbb %0, %1, %2":"=r"(tmp):"r"(a), "r"(b));
+  return tmp;
+}
+
+static __inline int32_t WebRtc_MulAccumW16(int16_t a,
+                                          int16_t b,
+                                          int32_t c) {
+  int32_t tmp = 0;
+  __asm__("smlabb %0, %1, %2, %3":"=r"(tmp):"r"(a), "r"(b), "r"(c));
+  return tmp;
+}
+
+static __inline WebRtc_Word16 WebRtcSpl_AddSatW16(WebRtc_Word16 a,
+                                                  WebRtc_Word16 b) {
+  WebRtc_Word32 s_sum;
+
+  __asm__("qadd16 %0, %1, %2":"=r"(s_sum):"r"(a), "r"(b));
+
+  return (WebRtc_Word16) s_sum;
+}
+
+static __inline WebRtc_Word32 WebRtcSpl_AddSatW32(WebRtc_Word32 l_var1,
+                                                  WebRtc_Word32 l_var2) {
+  WebRtc_Word32 l_sum;
+
+  __asm__("qadd %0, %1, %2":"=r"(l_sum):"r"(l_var1), "r"(l_var2));
+
+  return l_sum;
+}
+
+static __inline WebRtc_Word16 WebRtcSpl_SubSatW16(WebRtc_Word16 var1,
+                                                  WebRtc_Word16 var2) {
+  WebRtc_Word32 s_sub;
+
+  __asm__("qsub16 %0, %1, %2":"=r"(s_sub):"r"(var1), "r"(var2));
+
+  return (WebRtc_Word16)s_sub;
+}
+
+static __inline WebRtc_Word32 WebRtcSpl_SubSatW32(WebRtc_Word32 l_var1,
+                                                  WebRtc_Word32 l_var2) {
+  WebRtc_Word32 l_sub;
+
+  __asm__("qsub %0, %1, %2":"=r"(l_sub):"r"(l_var1), "r"(l_var2));
+
+  return l_sub;
+}
+
+static __inline WebRtc_Word16 WebRtcSpl_GetSizeInBits(WebRtc_UWord32 n) {
+  WebRtc_Word32 tmp;
+
+  __asm__("clz %0, %1":"=r"(tmp):"r"(n));
+
+  return (WebRtc_Word16)(32 - tmp);
+}
+
+static __inline int WebRtcSpl_NormW32(WebRtc_Word32 a) {
+  WebRtc_Word32 tmp;
+
+  if (a <= 0) a ^= 0xFFFFFFFF;
+
+  __asm__("clz %0, %1":"=r"(tmp):"r"(a));
+
+  return tmp - 1;
+}
+
+static __inline int WebRtcSpl_NormU32(WebRtc_UWord32 a) {
+  int tmp;
+
+  if (a == 0) return 0;
+
+  __asm__("clz %0, %1":"=r"(tmp):"r"(a));
+
+  return tmp;
+}
+
+static __inline int WebRtcSpl_NormW16(WebRtc_Word16 a) {
+  WebRtc_Word32 tmp;
+
+  if (a <= 0) a ^= 0xFFFFFFFF;
+
+  __asm__("clz %0, %1":"=r"(tmp):"r"(a));
+
+  return tmp - 17;
+}
+
+static __inline WebRtc_Word16 WebRtcSpl_SatW32ToW16(WebRtc_Word32 value32) {
+  WebRtc_Word16 out16;
+
+  __asm__("ssat %r0, #16, %r1" : "=r"(out16) : "r"(value32));
+
+  return out16;
+}
+#endif  // WEBRTC_SPL_SPL_INL_ARMV7_H_