1 files changed, 118 insertions, 0 deletions

diff --git a/lib/rbcodec/codecs/libopus/celt/arm/kiss_fft_armv5e.h b/lib/rbcodec/codecs/libopus/celt/arm/kiss_fft_armv5e.h
new file mode 100644
index 0000000000..9eca183d77
--- /dev/null
+++ b/lib/rbcodec/codecs/libopus/celt/arm/kiss_fft_armv5e.h
@@ -0,0 +1,118 @@
+/*Copyright (c) 2013, Xiph.Org Foundation and contributors.
+
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+  POSSIBILITY OF SUCH DAMAGE.*/
+
+#ifndef KISS_FFT_ARMv5E_H
+#define KISS_FFT_ARMv5E_H
+
+#if !defined(KISS_FFT_GUTS_H)
+#error "This file should only be included from _kiss_fft_guts.h"
+#endif
+
+#ifdef FIXED_POINT
+
+#if defined(__thumb__)||defined(__thumb2__)
+#define LDRD_CONS "Q"
+#else
+#define LDRD_CONS "Uq"
+#endif
+
+#undef C_MUL
+#define C_MUL(m,a,b) \
+    do{ \
+        int mr1__; \
+        int mr2__; \
+        int mi__; \
+        long long aval__; \
+        int bval__; \
+        __asm__( \
+            "#C_MUL\n\t" \
+            "ldrd %[aval], %H[aval], %[ap]\n\t" \
+            "ldr %[bval], %[bp]\n\t" \
+            "smulwb %[mi], %H[aval], %[bval]\n\t" \
+            "smulwb %[mr1], %[aval], %[bval]\n\t" \
+            "smulwt %[mr2], %H[aval], %[bval]\n\t" \
+            "smlawt %[mi], %[aval], %[bval], %[mi]\n\t" \
+            : [mr1]"=r"(mr1__), [mr2]"=r"(mr2__), [mi]"=r"(mi__), \
+              [aval]"=&r"(aval__), [bval]"=r"(bval__) \
+            : [ap]LDRD_CONS(a), [bp]"m"(b) \
+        ); \
+        (m).r = SHL32(SUB32(mr1__, mr2__), 1); \
+        (m).i = SHL32(mi__, 1); \
+    } \
+    while(0)
+
+#undef C_MUL4
+#define C_MUL4(m,a,b) \
+    do{ \
+        int mr1__; \
+        int mr2__; \
+        int mi__; \
+        long long aval__; \
+        int bval__; \
+        __asm__( \
+            "#C_MUL4\n\t" \
+            "ldrd %[aval], %H[aval], %[ap]\n\t" \
+            "ldr %[bval], %[bp]\n\t" \
+            "smulwb %[mi], %H[aval], %[bval]\n\t" \
+            "smulwb %[mr1], %[aval], %[bval]\n\t" \
+            "smulwt %[mr2], %H[aval], %[bval]\n\t" \
+            "smlawt %[mi], %[aval], %[bval], %[mi]\n\t" \
+            : [mr1]"=r"(mr1__), [mr2]"=r"(mr2__), [mi]"=r"(mi__), \
+              [aval]"=&r"(aval__), [bval]"=r"(bval__) \
+            : [ap]LDRD_CONS(a), [bp]"m"(b) \
+        ); \
+        (m).r = SHR32(SUB32(mr1__, mr2__), 1); \
+        (m).i = SHR32(mi__, 1); \
+    } \
+    while(0)
+
+#undef C_MULC
+#define C_MULC(m,a,b) \
+    do{ \
+        int mr__; \
+        int mi1__; \
+        int mi2__; \
+        long long aval__; \
+        int bval__; \
+        __asm__( \
+            "#C_MULC\n\t" \
+            "ldrd %[aval], %H[aval], %[ap]\n\t" \
+            "ldr %[bval], %[bp]\n\t" \
+            "smulwb %[mr], %[aval], %[bval]\n\t" \
+            "smulwb %[mi1], %H[aval], %[bval]\n\t" \
+            "smulwt %[mi2], %[aval], %[bval]\n\t" \
+            "smlawt %[mr], %H[aval], %[bval], %[mr]\n\t" \
+            : [mr]"=r"(mr__), [mi1]"=r"(mi1__), [mi2]"=r"(mi2__), \
+              [aval]"=&r"(aval__), [bval]"=r"(bval__) \
+            : [ap]LDRD_CONS(a), [bp]"m"(b) \
+        ); \
+        (m).r = SHL32(mr__, 1); \
+        (m).i = SHL32(SUB32(mi1__, mi2__), 1); \
+    } \
+    while(0)
+
+#endif /* FIXED_POINT */
+
+#endif /* KISS_FFT_GUTS_H */