Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 1 | /*********************************************************************** |
| 2 | Copyright (c) 2006-2011, Skype Limited. All rights reserved. |
| 3 | Redistribution and use in source and binary forms, with or without |
| 4 | modification, are permitted provided that the following conditions |
| 5 | are met: |
| 6 | - Redistributions of source code must retain the above copyright notice, |
| 7 | this list of conditions and the following disclaimer. |
| 8 | - Redistributions in binary form must reproduce the above copyright |
| 9 | notice, this list of conditions and the following disclaimer in the |
| 10 | documentation and/or other materials provided with the distribution. |
| 11 | - Neither the name of Internet Society, IETF or IETF Trust, nor the |
| 12 | names of specific contributors, may be used to endorse or promote |
| 13 | products derived from this software without specific prior written |
| 14 | permission. |
| 15 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” |
| 16 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| 19 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 20 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 21 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 22 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 23 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 24 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 25 | POSSIBILITY OF SUCH DAMAGE. |
| 26 | ***********************************************************************/ |
| 27 | |
| 28 | #ifndef SILK_MACROS_H |
| 29 | #define SILK_MACROS_H |
| 30 | |
| 31 | #ifdef HAVE_CONFIG_H |
| 32 | #include "config.h" |
| 33 | #endif |
| 34 | |
| 35 | /* This is an inline header file for general platform. */ |
| 36 | |
| 37 | /* (a32 * (opus_int32)((opus_int16)(b32))) >> 16 output have to be 32bit int */ |
| 38 | #define silk_SMULWB(a32, b32) ((((a32) >> 16) * (opus_int32)((opus_int16)(b32))) + ((((a32) & 0x0000FFFF) * (opus_int32)((opus_int16)(b32))) >> 16)) |
| 39 | |
| 40 | /* a32 + (b32 * (opus_int32)((opus_int16)(c32))) >> 16 output have to be 32bit int */ |
| 41 | #define silk_SMLAWB(a32, b32, c32) ((a32) + ((((b32) >> 16) * (opus_int32)((opus_int16)(c32))) + ((((b32) & 0x0000FFFF) * (opus_int32)((opus_int16)(c32))) >> 16))) |
| 42 | |
| 43 | /* (a32 * (b32 >> 16)) >> 16 */ |
| 44 | #define silk_SMULWT(a32, b32) (((a32) >> 16) * ((b32) >> 16) + ((((a32) & 0x0000FFFF) * ((b32) >> 16)) >> 16)) |
| 45 | |
| 46 | /* a32 + (b32 * (c32 >> 16)) >> 16 */ |
| 47 | #define silk_SMLAWT(a32, b32, c32) ((a32) + (((b32) >> 16) * ((c32) >> 16)) + ((((b32) & 0x0000FFFF) * ((c32) >> 16)) >> 16)) |
| 48 | |
| 49 | /* (opus_int32)((opus_int16)(a3))) * (opus_int32)((opus_int16)(b32)) output have to be 32bit int */ |
| 50 | #define silk_SMULBB(a32, b32) ((opus_int32)((opus_int16)(a32)) * (opus_int32)((opus_int16)(b32))) |
| 51 | |
| 52 | /* a32 + (opus_int32)((opus_int16)(b32)) * (opus_int32)((opus_int16)(c32)) output have to be 32bit int */ |
| 53 | #define silk_SMLABB(a32, b32, c32) ((a32) + ((opus_int32)((opus_int16)(b32))) * (opus_int32)((opus_int16)(c32))) |
| 54 | |
| 55 | /* (opus_int32)((opus_int16)(a32)) * (b32 >> 16) */ |
| 56 | #define silk_SMULBT(a32, b32) ((opus_int32)((opus_int16)(a32)) * ((b32) >> 16)) |
| 57 | |
| 58 | /* a32 + (opus_int32)((opus_int16)(b32)) * (c32 >> 16) */ |
| 59 | #define silk_SMLABT(a32, b32, c32) ((a32) + ((opus_int32)((opus_int16)(b32))) * ((c32) >> 16)) |
| 60 | |
| 61 | /* a64 + (b32 * c32) */ |
| 62 | #define silk_SMLAL(a64, b32, c32) (silk_ADD64((a64), ((opus_int64)(b32) * (opus_int64)(c32)))) |
| 63 | |
| 64 | /* (a32 * b32) >> 16 */ |
| 65 | #define silk_SMULWW(a32, b32) silk_MLA(silk_SMULWB((a32), (b32)), (a32), silk_RSHIFT_ROUND((b32), 16)) |
| 66 | |
| 67 | /* a32 + ((b32 * c32) >> 16) */ |
| 68 | #define silk_SMLAWW(a32, b32, c32) silk_MLA(silk_SMLAWB((a32), (b32), (c32)), (b32), silk_RSHIFT_ROUND((c32), 16)) |
| 69 | |
| 70 | /* add/subtract with output saturated */ |
| 71 | #define silk_ADD_SAT32(a, b) ((((opus_uint32)(a) + (opus_uint32)(b)) & 0x80000000) == 0 ? \ |
| 72 | ((((a) & (b)) & 0x80000000) != 0 ? silk_int32_MIN : (a)+(b)) : \ |
| 73 | ((((a) | (b)) & 0x80000000) == 0 ? silk_int32_MAX : (a)+(b)) ) |
| 74 | |
| 75 | #define silk_SUB_SAT32(a, b) ((((opus_uint32)(a)-(opus_uint32)(b)) & 0x80000000) == 0 ? \ |
| 76 | (( (a) & ((b)^0x80000000) & 0x80000000) ? silk_int32_MIN : (a)-(b)) : \ |
| 77 | ((((a)^0x80000000) & (b) & 0x80000000) ? silk_int32_MAX : (a)-(b)) ) |
| 78 | |
| 79 | static inline opus_int32 silk_CLZ16(opus_int16 in16) |
| 80 | { |
| 81 | opus_int32 out32 = 0; |
| 82 | if( in16 == 0 ) { |
| 83 | return 16; |
| 84 | } |
| 85 | /* test nibbles */ |
| 86 | if( in16 & 0xFF00 ) { |
| 87 | if( in16 & 0xF000 ) { |
| 88 | in16 >>= 12; |
| 89 | } else { |
| 90 | out32 += 4; |
| 91 | in16 >>= 8; |
| 92 | } |
| 93 | } else { |
| 94 | if( in16 & 0xFFF0 ) { |
| 95 | out32 += 8; |
| 96 | in16 >>= 4; |
| 97 | } else { |
| 98 | out32 += 12; |
| 99 | } |
| 100 | } |
| 101 | /* test bits and return */ |
| 102 | if( in16 & 0xC ) { |
| 103 | if( in16 & 0x8 ) |
| 104 | return out32 + 0; |
| 105 | else |
| 106 | return out32 + 1; |
| 107 | } else { |
| 108 | if( in16 & 0xE ) |
| 109 | return out32 + 2; |
| 110 | else |
| 111 | return out32 + 3; |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | static inline opus_int32 silk_CLZ32(opus_int32 in32) |
| 116 | { |
| 117 | /* test highest 16 bits and convert to opus_int16 */ |
| 118 | if( in32 & 0xFFFF0000 ) { |
| 119 | return silk_CLZ16((opus_int16)(in32 >> 16)); |
| 120 | } else { |
| 121 | return silk_CLZ16((opus_int16)in32) + 16; |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | /* Row based */ |
| 126 | #define matrix_ptr(Matrix_base_adr, row, column, N) *(Matrix_base_adr + ((row)*(N)+(column))) |
| 127 | #define matrix_adr(Matrix_base_adr, row, column, N) (Matrix_base_adr + ((row)*(N)+(column))) |
| 128 | |
| 129 | /* Column based */ |
| 130 | #ifndef matrix_c_ptr |
| 131 | # define matrix_c_ptr(Matrix_base_adr, row, column, M) *(Matrix_base_adr + ((row)+(M)*(column))) |
| 132 | #endif |
| 133 | |
| 134 | #endif /* SILK_MACROS_H */ |
| 135 | |