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comparison: media/libopus/celt/arm/kiss_fft_armv4.h
media/libopus/celt/arm/kiss_fft_armv4.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_ARMv4_H | |
| 27 #define KISS_FFT_ARMv4_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 #undef C_MUL | |
| 36 #define C_MUL(m,a,b) \ | |
| 37 do{ \ | |
| 38 int br__; \ | |
| 39 int bi__; \ | |
| 40 int tt__; \ | |
| 41 __asm__ __volatile__( \ | |
| 42 "#C_MUL\n\t" \ | |
| 43 "ldrsh %[br], [%[bp], #0]\n\t" \ | |
| 44 "ldm %[ap], {r0,r1}\n\t" \ | |
| 45 "ldrsh %[bi], [%[bp], #2]\n\t" \ | |
| 46 "smull %[tt], %[mi], r1, %[br]\n\t" \ | |
| 47 "smlal %[tt], %[mi], r0, %[bi]\n\t" \ | |
| 48 "rsb %[bi], %[bi], #0\n\t" \ | |
| 49 "smull %[br], %[mr], r0, %[br]\n\t" \ | |
| 50 "mov %[tt], %[tt], lsr #15\n\t" \ | |
| 51 "smlal %[br], %[mr], r1, %[bi]\n\t" \ | |
| 52 "orr %[mi], %[tt], %[mi], lsl #17\n\t" \ | |
| 53 "mov %[br], %[br], lsr #15\n\t" \ | |
| 54 "orr %[mr], %[br], %[mr], lsl #17\n\t" \ | |
| 55 : [mr]"=r"((m).r), [mi]"=r"((m).i), \ | |
| 56 [br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \ | |
| 57 : [ap]"r"(&(a)), [bp]"r"(&(b)) \ | |
| 58 : "r0", "r1" \ | |
| 59 ); \ | |
| 60 } \ | |
| 61 while(0) | |
| 62 | |
| 63 #undef C_MUL4 | |
| 64 #define C_MUL4(m,a,b) \ | |
| 65 do{ \ | |
| 66 int br__; \ | |
| 67 int bi__; \ | |
| 68 int tt__; \ | |
| 69 __asm__ __volatile__( \ | |
| 70 "#C_MUL4\n\t" \ | |
| 71 "ldrsh %[br], [%[bp], #0]\n\t" \ | |
| 72 "ldm %[ap], {r0,r1}\n\t" \ | |
| 73 "ldrsh %[bi], [%[bp], #2]\n\t" \ | |
| 74 "smull %[tt], %[mi], r1, %[br]\n\t" \ | |
| 75 "smlal %[tt], %[mi], r0, %[bi]\n\t" \ | |
| 76 "rsb %[bi], %[bi], #0\n\t" \ | |
| 77 "smull %[br], %[mr], r0, %[br]\n\t" \ | |
| 78 "mov %[tt], %[tt], lsr #17\n\t" \ | |
| 79 "smlal %[br], %[mr], r1, %[bi]\n\t" \ | |
| 80 "orr %[mi], %[tt], %[mi], lsl #15\n\t" \ | |
| 81 "mov %[br], %[br], lsr #17\n\t" \ | |
| 82 "orr %[mr], %[br], %[mr], lsl #15\n\t" \ | |
| 83 : [mr]"=r"((m).r), [mi]"=r"((m).i), \ | |
| 84 [br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \ | |
| 85 : [ap]"r"(&(a)), [bp]"r"(&(b)) \ | |
| 86 : "r0", "r1" \ | |
| 87 ); \ | |
| 88 } \ | |
| 89 while(0) | |
| 90 | |
| 91 #undef C_MULC | |
| 92 #define C_MULC(m,a,b) \ | |
| 93 do{ \ | |
| 94 int br__; \ | |
| 95 int bi__; \ | |
| 96 int tt__; \ | |
| 97 __asm__ __volatile__( \ | |
| 98 "#C_MULC\n\t" \ | |
| 99 "ldrsh %[br], [%[bp], #0]\n\t" \ | |
| 100 "ldm %[ap], {r0,r1}\n\t" \ | |
| 101 "ldrsh %[bi], [%[bp], #2]\n\t" \ | |
| 102 "smull %[tt], %[mr], r0, %[br]\n\t" \ | |
| 103 "smlal %[tt], %[mr], r1, %[bi]\n\t" \ | |
| 104 "rsb %[bi], %[bi], #0\n\t" \ | |
| 105 "smull %[br], %[mi], r1, %[br]\n\t" \ | |
| 106 "mov %[tt], %[tt], lsr #15\n\t" \ | |
| 107 "smlal %[br], %[mi], r0, %[bi]\n\t" \ | |
| 108 "orr %[mr], %[tt], %[mr], lsl #17\n\t" \ | |
| 109 "mov %[br], %[br], lsr #15\n\t" \ | |
| 110 "orr %[mi], %[br], %[mi], lsl #17\n\t" \ | |
| 111 : [mr]"=r"((m).r), [mi]"=r"((m).i), \ | |
| 112 [br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \ | |
| 113 : [ap]"r"(&(a)), [bp]"r"(&(b)) \ | |
| 114 : "r0", "r1" \ | |
| 115 ); \ | |
| 116 } \ | |
| 117 while(0) | |
| 118 | |
| 119 #endif /* FIXED_POINT */ | |
| 120 | |
| 121 #endif /* KISS_FFT_ARMv4_H */ |
