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562
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1 /*
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2 optimize: get a grip on the different optimizations
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3
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4 copyright 2006 by the mpg123 project - free software under the terms of the LGPL 2.1
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5 see COPYING and AUTHORS files in distribution or http://mpg123.org
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6 initially written by Thomas Orgis, inspired by 3DNow stuff in mpg123.[hc]
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7
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8 Currently, this file contains the struct and function to choose an optimization variant and works only when OPT_MULTI is in effect.
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9 */
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10
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11 #include "mpg123lib_intern.h" /* includes optimize.h */
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12 #ifdef OPT_MULTI
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13
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14 #include "getcpuflags.h"
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15 struct cpuflags cpu_flags;
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16
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17 /* same number of entries as full list, but empty at beginning */
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18 static char *mpg123_supported_decoder_list[] =
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19 {
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20 #ifdef OPT_3DNOWEXT
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21 NULL,
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22 #endif
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23 #ifdef OPT_SSE
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24 NULL,
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25 #endif
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26 #ifdef OPT_3DNOW
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27 NULL,
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28 #endif
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29 #ifdef OPT_MMX
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30 NULL,
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31 #endif
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32 #ifdef OPT_I586
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33 NULL,
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34 #endif
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35 #ifdef OPT_I586_DITHER
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36 NULL,
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37 #endif
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38 #ifdef OPT_I486
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39 NULL,
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40 #endif
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41 #ifdef OPT_I386
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42 NULL,
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43 #endif
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44 #ifdef OPT_ALTIVEC
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45 NULL,
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46 #endif
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47 NULL, /* generic */
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48 NULL
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49 };
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50 #endif
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51
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52 static char *mpg123_decoder_list[] =
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53 {
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54 #ifdef OPT_3DNOWEXT
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55 "3DNowExt",
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56 #endif
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57 #ifdef OPT_SSE
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58 "SSE",
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59 #endif
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60 #ifdef OPT_3DNOW
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61 "3DNow",
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62 #endif
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63 #ifdef OPT_MMX
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64 "MMX",
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65 #endif
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66 #ifdef OPT_I586
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67 "i586",
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68 #endif
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69 #ifdef OPT_I586_DITHER
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70 "i586_dither",
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71 #endif
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72 #ifdef OPT_I486
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73 "i486",
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74 #endif
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75 #ifdef OPT_I386
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76 "i386",
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77 #endif
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78 #ifdef OPT_ALTIVEC
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79 "AltiVec",
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80 #endif
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81 #ifdef OPT_GENERIC
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82 "generic",
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83 #endif
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84 NULL
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85 };
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86
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87 void check_decoders(void )
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88 {
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89 #ifndef OPT_MULTI
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90 return;
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91 #else
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92 char **d = mpg123_supported_decoder_list;
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93 #ifdef OPT_X86
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94 getcpuflags(&cpu_flags);
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95 if(cpu_i586(cpu_flags))
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96 {
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97 /* not yet: if(cpu_sse2(cpu_flags)) printf(" SSE2");
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98 if(cpu_sse3(cpu_flags)) printf(" SSE3"); */
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99 #ifdef OPT_3DNOWEXT
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100 if(cpu_3dnowext(cpu_flags)) *(d++) = "3DNowExt";
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101 #endif
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102 #ifdef OPT_SSE
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103 if(cpu_sse(cpu_flags)) *(d++) = "SSE";
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104 #endif
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105 #ifdef OPT_3DNOW
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106 if(cpu_3dnow(cpu_flags)) *(d++) = "3DNow";
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107 #endif
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108 #ifdef OPT_MMX
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109 if(cpu_mmx(cpu_flags)) *(d++) = "MMX";
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110 #endif
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111 #ifdef OPT_I586
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112 *(d++) = "i586";
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113 #endif
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114 #ifdef OPT_I586_DITHER
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115 *(d++) = "i586_dither";
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116 #endif
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117 }
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118 #endif
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119 /* just assume that the i486 built is run on a i486 cpu... */
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120 #ifdef OPT_I486
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121 *(d++) = "i486";
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122 #endif
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123 #ifdef OPT_ALTIVEC
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124 *(d++) = "AltiVec";
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125 #endif
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126 /* every supported x86 can do i386, any cpu can do generic */
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127 #ifdef OPT_I386
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128 *(d++) = "i386";
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129 #endif
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130 #ifdef OPT_GENERIC
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131 *(d++) = "generic";
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132 #endif
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133 #endif /* ndef OPT_MULTI */
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134 }
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135
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136 char attribute_align_arg **mpg123_decoders(){ return mpg123_decoder_list; }
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137 char attribute_align_arg **mpg123_supported_decoders()
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138 {
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139 #ifdef OPT_MULTI
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140 return mpg123_supported_decoder_list;
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141 #else
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142 return mpg123_decoder_list;
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143 #endif
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144 }
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