1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libopus/celt/arm/kiss_fft_armv4.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,121 @@
1.4 +/*Copyright (c) 2013, Xiph.Org Foundation and contributors.
1.5 +
1.6 + All rights reserved.
1.7 +
1.8 + Redistribution and use in source and binary forms, with or without
1.9 + modification, are permitted provided that the following conditions are met:
1.10 +
1.11 + * Redistributions of source code must retain the above copyright notice,
1.12 + this list of conditions and the following disclaimer.
1.13 + * Redistributions in binary form must reproduce the above copyright notice,
1.14 + this list of conditions and the following disclaimer in the
1.15 + documentation and/or other materials provided with the distribution.
1.16 +
1.17 + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.18 + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.19 + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.20 + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
1.21 + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.22 + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.23 + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.24 + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.25 + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.26 + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.27 + POSSIBILITY OF SUCH DAMAGE.*/
1.28 +
1.29 +#ifndef KISS_FFT_ARMv4_H
1.30 +#define KISS_FFT_ARMv4_H
1.31 +
1.32 +#if !defined(KISS_FFT_GUTS_H)
1.33 +#error "This file should only be included from _kiss_fft_guts.h"
1.34 +#endif
1.35 +
1.36 +#ifdef FIXED_POINT
1.37 +
1.38 +#undef C_MUL
1.39 +#define C_MUL(m,a,b) \
1.40 + do{ \
1.41 + int br__; \
1.42 + int bi__; \
1.43 + int tt__; \
1.44 + __asm__ __volatile__( \
1.45 + "#C_MUL\n\t" \
1.46 + "ldrsh %[br], [%[bp], #0]\n\t" \
1.47 + "ldm %[ap], {r0,r1}\n\t" \
1.48 + "ldrsh %[bi], [%[bp], #2]\n\t" \
1.49 + "smull %[tt], %[mi], r1, %[br]\n\t" \
1.50 + "smlal %[tt], %[mi], r0, %[bi]\n\t" \
1.51 + "rsb %[bi], %[bi], #0\n\t" \
1.52 + "smull %[br], %[mr], r0, %[br]\n\t" \
1.53 + "mov %[tt], %[tt], lsr #15\n\t" \
1.54 + "smlal %[br], %[mr], r1, %[bi]\n\t" \
1.55 + "orr %[mi], %[tt], %[mi], lsl #17\n\t" \
1.56 + "mov %[br], %[br], lsr #15\n\t" \
1.57 + "orr %[mr], %[br], %[mr], lsl #17\n\t" \
1.58 + : [mr]"=r"((m).r), [mi]"=r"((m).i), \
1.59 + [br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \
1.60 + : [ap]"r"(&(a)), [bp]"r"(&(b)) \
1.61 + : "r0", "r1" \
1.62 + ); \
1.63 + } \
1.64 + while(0)
1.65 +
1.66 +#undef C_MUL4
1.67 +#define C_MUL4(m,a,b) \
1.68 + do{ \
1.69 + int br__; \
1.70 + int bi__; \
1.71 + int tt__; \
1.72 + __asm__ __volatile__( \
1.73 + "#C_MUL4\n\t" \
1.74 + "ldrsh %[br], [%[bp], #0]\n\t" \
1.75 + "ldm %[ap], {r0,r1}\n\t" \
1.76 + "ldrsh %[bi], [%[bp], #2]\n\t" \
1.77 + "smull %[tt], %[mi], r1, %[br]\n\t" \
1.78 + "smlal %[tt], %[mi], r0, %[bi]\n\t" \
1.79 + "rsb %[bi], %[bi], #0\n\t" \
1.80 + "smull %[br], %[mr], r0, %[br]\n\t" \
1.81 + "mov %[tt], %[tt], lsr #17\n\t" \
1.82 + "smlal %[br], %[mr], r1, %[bi]\n\t" \
1.83 + "orr %[mi], %[tt], %[mi], lsl #15\n\t" \
1.84 + "mov %[br], %[br], lsr #17\n\t" \
1.85 + "orr %[mr], %[br], %[mr], lsl #15\n\t" \
1.86 + : [mr]"=r"((m).r), [mi]"=r"((m).i), \
1.87 + [br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \
1.88 + : [ap]"r"(&(a)), [bp]"r"(&(b)) \
1.89 + : "r0", "r1" \
1.90 + ); \
1.91 + } \
1.92 + while(0)
1.93 +
1.94 +#undef C_MULC
1.95 +#define C_MULC(m,a,b) \
1.96 + do{ \
1.97 + int br__; \
1.98 + int bi__; \
1.99 + int tt__; \
1.100 + __asm__ __volatile__( \
1.101 + "#C_MULC\n\t" \
1.102 + "ldrsh %[br], [%[bp], #0]\n\t" \
1.103 + "ldm %[ap], {r0,r1}\n\t" \
1.104 + "ldrsh %[bi], [%[bp], #2]\n\t" \
1.105 + "smull %[tt], %[mr], r0, %[br]\n\t" \
1.106 + "smlal %[tt], %[mr], r1, %[bi]\n\t" \
1.107 + "rsb %[bi], %[bi], #0\n\t" \
1.108 + "smull %[br], %[mi], r1, %[br]\n\t" \
1.109 + "mov %[tt], %[tt], lsr #15\n\t" \
1.110 + "smlal %[br], %[mi], r0, %[bi]\n\t" \
1.111 + "orr %[mr], %[tt], %[mr], lsl #17\n\t" \
1.112 + "mov %[br], %[br], lsr #15\n\t" \
1.113 + "orr %[mi], %[br], %[mi], lsl #17\n\t" \
1.114 + : [mr]"=r"((m).r), [mi]"=r"((m).i), \
1.115 + [br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \
1.116 + : [ap]"r"(&(a)), [bp]"r"(&(b)) \
1.117 + : "r0", "r1" \
1.118 + ); \
1.119 + } \
1.120 + while(0)
1.121 +
1.122 +#endif /* FIXED_POINT */
1.123 +
1.124 +#endif /* KISS_FFT_ARMv4_H */
