ex

Fork of mbed-os-example-mbed5-blinky by mbed-os-examples

Embed: (wiki syntax)

« Back to documentation index

Show/hide line numbers arch.h Source File

arch.h

Go to the documentation of this file.
00001 /* Copyright (C) 2003 Jean-Marc Valin */
00002 /**
00003    @file arch.h
00004    @brief Various architecture definitions Speex
00005 */
00006 /*
00007    Redistribution and use in source and binary forms, with or without
00008    modification, are permitted provided that the following conditions
00009    are met:
00010    
00011    - Redistributions of source code must retain the above copyright
00012    notice, this list of conditions and the following disclaimer.
00013    
00014    - Redistributions in binary form must reproduce the above copyright
00015    notice, this list of conditions and the following disclaimer in the
00016    documentation and/or other materials provided with the distribution.
00017    
00018    - Neither the name of the Xiph.org Foundation nor the names of its
00019    contributors may be used to endorse or promote products derived from
00020    this software without specific prior written permission.
00021    
00022    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00023    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00024    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
00025    A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
00026    CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00027    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00028    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00029    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00030    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00031    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00032    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00033 */
00034 
00035 #ifndef ARCH_H
00036 #define ARCH_H
00037 
00038 #ifndef OUTSIDE_SPEEX
00039 #include "speex/speex_types.h"
00040 #endif
00041 
00042 #define ABS(x) ((x) < 0 ? (-(x)) : (x))      /**< Absolute integer value. */
00043 #define ABS16(x) ((x) < 0 ? (-(x)) : (x))    /**< Absolute 16-bit value.  */
00044 #define MIN16(a,b) ((a) < (b) ? (a) : (b))   /**< Maximum 16-bit value.   */
00045 #define MAX16(a,b) ((a) > (b) ? (a) : (b))   /**< Maximum 16-bit value.   */
00046 #define ABS32(x) ((x) < 0 ? (-(x)) : (x))    /**< Absolute 32-bit value.  */
00047 #define MIN32(a,b) ((a) < (b) ? (a) : (b))   /**< Maximum 32-bit value.   */
00048 #define MAX32(a,b) ((a) > (b) ? (a) : (b))   /**< Maximum 32-bit value.   */
00049 
00050 #ifdef FIXED_POINT
00051 
00052 typedef spx_int16_t spx_word16_t;
00053 typedef spx_int32_t   spx_word32_t;
00054 typedef spx_word32_t spx_mem_t;
00055 typedef spx_word16_t spx_coef_t;
00056 typedef spx_word16_t spx_lsp_t;
00057 typedef spx_word32_t spx_sig_t;
00058 
00059 #define Q15ONE 32767
00060 
00061 #define LPC_SCALING  8192
00062 #define SIG_SCALING  16384
00063 #define LSP_SCALING  8192.
00064 #define GAMMA_SCALING 32768.
00065 #define GAIN_SCALING 64
00066 #define GAIN_SCALING_1 0.015625
00067 
00068 #define LPC_SHIFT    13
00069 #define LSP_SHIFT    13
00070 #define SIG_SHIFT    14
00071 
00072 #define VERY_SMALL 0
00073 #define VERY_LARGE32 ((spx_word32_t)2147483647)
00074 #define VERY_LARGE16 ((spx_word16_t)32767)
00075 #define Q15_ONE ((spx_word16_t)32767)
00076 
00077 
00078 #ifdef FIXED_DEBUG
00079 #include "fixed_debug.h"
00080 #else
00081 
00082 #include "fixed_generic.h"
00083 
00084 #ifdef ARM5E_ASM
00085 #include "fixed_arm5e.h"
00086 #elif defined (ARM4_ASM)
00087 #include "fixed_arm4.h"
00088 #elif defined (ARM5E_ASM)
00089 #include "fixed_arm5e.h"
00090 #elif defined (BFIN_ASM)
00091 #include "fixed_bfin.h"
00092 #endif
00093 
00094 #endif
00095 
00096 
00097 #else
00098 
00099 typedef float spx_mem_t;
00100 typedef float spx_coef_t;
00101 typedef float spx_lsp_t;
00102 typedef float spx_sig_t;
00103 typedef float spx_word16_t;
00104 typedef float spx_word32_t;
00105 
00106 #define Q15ONE 1.0f
00107 #define LPC_SCALING  1.f
00108 #define SIG_SCALING  1.f
00109 #define LSP_SCALING  1.f
00110 #define GAMMA_SCALING 1.f
00111 #define GAIN_SCALING 1.f
00112 #define GAIN_SCALING_1 1.f
00113 
00114 #define LPC_SHIFT    0
00115 #define LSP_SHIFT    0
00116 #define SIG_SHIFT    0
00117 
00118 #define VERY_SMALL 1e-15f
00119 #define VERY_LARGE32 1e15f
00120 #define VERY_LARGE16 1e15f
00121 #define Q15_ONE ((spx_word16_t)1.f)
00122 
00123 #define QCONST16(x,bits) (x)
00124 #define QCONST32(x,bits) (x)
00125 
00126 #define NEG16(x) (-(x))
00127 #define NEG32(x) (-(x))
00128 #define EXTRACT16(x) (x)
00129 #define EXTEND32(x) (x)
00130 #define SHR16(a,shift) (a)
00131 #define SHL16(a,shift) (a)
00132 #define SHR32(a,shift) (a)
00133 #define SHL32(a,shift) (a)
00134 #define PSHR16(a,shift) (a)
00135 #define PSHR32(a,shift) (a)
00136 #define VSHR32(a,shift) (a)
00137 #define SATURATE16(x,a) (x)
00138 #define SATURATE32(x,a) (x)
00139 
00140 #define PSHR(a,shift)       (a)
00141 #define SHR(a,shift)       (a)
00142 #define SHL(a,shift)       (a)
00143 #define SATURATE(x,a) (x)
00144 
00145 #define ADD16(a,b) ((a)+(b))
00146 #define SUB16(a,b) ((a)-(b))
00147 #define ADD32(a,b) ((a)+(b))
00148 #define SUB32(a,b) ((a)-(b))
00149 #define MULT16_16_16(a,b)     ((a)*(b))
00150 #define MULT16_16(a,b)     ((spx_word32_t)(a)*(spx_word32_t)(b))
00151 #define MAC16_16(c,a,b)     ((c)+(spx_word32_t)(a)*(spx_word32_t)(b))
00152 
00153 #define MULT16_32_Q11(a,b)     ((a)*(b))
00154 #define MULT16_32_Q13(a,b)     ((a)*(b))
00155 #define MULT16_32_Q14(a,b)     ((a)*(b))
00156 #define MULT16_32_Q15(a,b)     ((a)*(b))
00157 #define MULT16_32_P15(a,b)     ((a)*(b))
00158 
00159 #define MAC16_32_Q11(c,a,b)     ((c)+(a)*(b))
00160 #define MAC16_32_Q15(c,a,b)     ((c)+(a)*(b))
00161 
00162 #define MAC16_16_Q11(c,a,b)     ((c)+(a)*(b))
00163 #define MAC16_16_Q13(c,a,b)     ((c)+(a)*(b))
00164 #define MAC16_16_P13(c,a,b)     ((c)+(a)*(b))
00165 #define MULT16_16_Q11_32(a,b)     ((a)*(b))
00166 #define MULT16_16_Q13(a,b)     ((a)*(b))
00167 #define MULT16_16_Q14(a,b)     ((a)*(b))
00168 #define MULT16_16_Q15(a,b)     ((a)*(b))
00169 #define MULT16_16_P15(a,b)     ((a)*(b))
00170 #define MULT16_16_P13(a,b)     ((a)*(b))
00171 #define MULT16_16_P14(a,b)     ((a)*(b))
00172 
00173 #define DIV32_16(a,b)     (((spx_word32_t)(a))/(spx_word16_t)(b))
00174 #define PDIV32_16(a,b)     (((spx_word32_t)(a))/(spx_word16_t)(b))
00175 #define DIV32(a,b)     (((spx_word32_t)(a))/(spx_word32_t)(b))
00176 #define PDIV32(a,b)     (((spx_word32_t)(a))/(spx_word32_t)(b))
00177 
00178 
00179 #endif
00180 
00181 
00182 #if defined (CONFIG_TI_C54X) || defined (CONFIG_TI_C55X)
00183 
00184 /* 2 on TI C5x DSP */
00185 #define BYTES_PER_CHAR 2 
00186 #define BITS_PER_CHAR 16
00187 #define LOG2_BITS_PER_CHAR 4
00188 
00189 #else 
00190 
00191 #define BYTES_PER_CHAR 1
00192 #define BITS_PER_CHAR 8
00193 #define LOG2_BITS_PER_CHAR 3
00194 
00195 #endif
00196 
00197 #endif