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comparison: media/libopus/celt/arm/kiss_fft_armv5e.h
media/libopus/celt/arm/kiss_fft_armv5e.h
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| 1 /*Copyright (c) 2013, Xiph.Org Foundation and contributors. | |
| 2 | |
| 3 All rights reserved. | |
| 4 | |
| 5 Redistribution and use in source and binary forms, with or without | |
| 6 modification, are permitted provided that the following conditions are met: | |
| 7 | |
| 8 * Redistributions of source code must retain the above copyright notice, | |
| 9 this list of conditions and the following disclaimer. | |
| 10 * Redistributions in binary form must reproduce the above copyright notice, | |
| 11 this list of conditions and the following disclaimer in the | |
| 12 documentation and/or other materials provided with the distribution. | |
| 13 | |
| 14 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 15 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 16 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 17 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
| 18 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 19 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 20 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 21 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 22 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 23 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 24 POSSIBILITY OF SUCH DAMAGE.*/ | |
| 25 | |
| 26 #ifndef KISS_FFT_ARMv5E_H | |
| 27 #define KISS_FFT_ARMv5E_H | |
| 28 | |
| 29 #if !defined(KISS_FFT_GUTS_H) | |
| 30 #error "This file should only be included from _kiss_fft_guts.h" | |
| 31 #endif | |
| 32 | |
| 33 #ifdef FIXED_POINT | |
| 34 | |
| 35 #if defined(__thumb__)||defined(__thumb2__) | |
| 36 #define LDRD_CONS "Q" | |
| 37 #else | |
| 38 #define LDRD_CONS "Uq" | |
| 39 #endif | |
| 40 | |
| 41 #undef C_MUL | |
| 42 #define C_MUL(m,a,b) \ | |
| 43 do{ \ | |
| 44 int mr1__; \ | |
| 45 int mr2__; \ | |
| 46 int mi__; \ | |
| 47 long long aval__; \ | |
| 48 int bval__; \ | |
| 49 __asm__( \ | |
| 50 "#C_MUL\n\t" \ | |
| 51 "ldrd %[aval], %H[aval], %[ap]\n\t" \ | |
| 52 "ldr %[bval], %[bp]\n\t" \ | |
| 53 "smulwb %[mi], %H[aval], %[bval]\n\t" \ | |
| 54 "smulwb %[mr1], %[aval], %[bval]\n\t" \ | |
| 55 "smulwt %[mr2], %H[aval], %[bval]\n\t" \ | |
| 56 "smlawt %[mi], %[aval], %[bval], %[mi]\n\t" \ | |
| 57 : [mr1]"=r"(mr1__), [mr2]"=r"(mr2__), [mi]"=r"(mi__), \ | |
| 58 [aval]"=&r"(aval__), [bval]"=r"(bval__) \ | |
| 59 : [ap]LDRD_CONS(a), [bp]"m"(b) \ | |
| 60 ); \ | |
| 61 (m).r = SHL32(SUB32(mr1__, mr2__), 1); \ | |
| 62 (m).i = SHL32(mi__, 1); \ | |
| 63 } \ | |
| 64 while(0) | |
| 65 | |
| 66 #undef C_MUL4 | |
| 67 #define C_MUL4(m,a,b) \ | |
| 68 do{ \ | |
| 69 int mr1__; \ | |
| 70 int mr2__; \ | |
| 71 int mi__; \ | |
| 72 long long aval__; \ | |
| 73 int bval__; \ | |
| 74 __asm__( \ | |
| 75 "#C_MUL4\n\t" \ | |
| 76 "ldrd %[aval], %H[aval], %[ap]\n\t" \ | |
| 77 "ldr %[bval], %[bp]\n\t" \ | |
| 78 "smulwb %[mi], %H[aval], %[bval]\n\t" \ | |
| 79 "smulwb %[mr1], %[aval], %[bval]\n\t" \ | |
| 80 "smulwt %[mr2], %H[aval], %[bval]\n\t" \ | |
| 81 "smlawt %[mi], %[aval], %[bval], %[mi]\n\t" \ | |
| 82 : [mr1]"=r"(mr1__), [mr2]"=r"(mr2__), [mi]"=r"(mi__), \ | |
| 83 [aval]"=&r"(aval__), [bval]"=r"(bval__) \ | |
| 84 : [ap]LDRD_CONS(a), [bp]"m"(b) \ | |
| 85 ); \ | |
| 86 (m).r = SHR32(SUB32(mr1__, mr2__), 1); \ | |
| 87 (m).i = SHR32(mi__, 1); \ | |
| 88 } \ | |
| 89 while(0) | |
| 90 | |
| 91 #undef C_MULC | |
| 92 #define C_MULC(m,a,b) \ | |
| 93 do{ \ | |
| 94 int mr__; \ | |
| 95 int mi1__; \ | |
| 96 int mi2__; \ | |
| 97 long long aval__; \ | |
| 98 int bval__; \ | |
| 99 __asm__( \ | |
| 100 "#C_MULC\n\t" \ | |
| 101 "ldrd %[aval], %H[aval], %[ap]\n\t" \ | |
| 102 "ldr %[bval], %[bp]\n\t" \ | |
| 103 "smulwb %[mr], %[aval], %[bval]\n\t" \ | |
| 104 "smulwb %[mi1], %H[aval], %[bval]\n\t" \ | |
| 105 "smulwt %[mi2], %[aval], %[bval]\n\t" \ | |
| 106 "smlawt %[mr], %H[aval], %[bval], %[mr]\n\t" \ | |
| 107 : [mr]"=r"(mr__), [mi1]"=r"(mi1__), [mi2]"=r"(mi2__), \ | |
| 108 [aval]"=&r"(aval__), [bval]"=r"(bval__) \ | |
| 109 : [ap]LDRD_CONS(a), [bp]"m"(b) \ | |
| 110 ); \ | |
| 111 (m).r = SHL32(mr__, 1); \ | |
| 112 (m).i = SHL32(SUB32(mi1__, mi2__), 1); \ | |
| 113 } \ | |
| 114 while(0) | |
| 115 | |
| 116 #endif /* FIXED_POINT */ | |
| 117 | |
| 118 #endif /* KISS_FFT_GUTS_H */ |
