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annotate test/automated/platform/platform.c @ 3429:48caa67fac25

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author Sam Lantinga <slouken@libsdl.org>
date Wed, 11 Nov 2009 06:23:19 +0000
parents 63d4517fc4ac
children c32c53fca10d
rev   line source
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1 /**
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2 * Automated SDL platform test.
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3 *
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4 * Based off of testplatform.c.
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5 *
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6 * Written by Edgar Simo "bobbens"
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7 *
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8 * Released under Public Domain.
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9 */
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10
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11
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12
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13
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14 #include "SDL.h"
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15 #include "SDL_at.h"
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16 #include "SDL_endian.h"
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17 #include "SDL_cpuinfo.h"
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18
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19
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20 /*
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21 * Prototypes.
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22 */
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23 static int plat_testSize( size_t sizeoftype, size_t hardcodetype );
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24 static void plat_testTypes (void);
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25
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26
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27 /**
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28 * @brief Test size.
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29 *
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30 * @note Watcom C flags these as Warning 201: "Unreachable code" if you just
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31 * compare them directly, so we push it through a function to keep the
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32 * compiler quiet. --ryan.
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33 */
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34 static int plat_testSize( size_t sizeoftype, size_t hardcodetype )
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35 {
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36 return sizeoftype != hardcodetype;
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37 }
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38
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39
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40 /**
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41 * @brief Tests type size.
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42 */
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43 static void plat_testTypes (void)
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44 {
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45 int ret;
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46
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47 SDL_ATbegin( "Type size" );
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48
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49 ret = plat_testSize( sizeof(Uint8), 1 );
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50 if (SDL_ATvassert( ret == 0, "sizeof(Uint8) = %lu instead of 1", sizeof(Uint8) ))
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51 return;
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52
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53 ret = plat_testSize( sizeof(Uint16), 2 );
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54 if (SDL_ATvassert( ret == 0, "sizeof(Uint16) = %lu instead of 2", sizeof(Uint16) ))
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55 return;
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56
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57 ret = plat_testSize( sizeof(Uint32), 4 );
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58 if (SDL_ATvassert( ret == 0, "sizeof(Uint32) = %lu instead of 4", sizeof(Uint32) ))
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59 return;
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60
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61 #ifdef SDL_HAS_64BIT_TYPE
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62 ret = plat_testSize( sizeof(Uint64), 8 );
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63 if (SDL_ATvassert( ret == 0, "sizeof(Uint64) = %lu instead of 8", sizeof(Uint64) ))
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64 return;
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65 #endif /* SDL_HAS_64BIT_TYPE */
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66
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67 SDL_ATend();
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68 }
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69
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70
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71 /**
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72 * @brief Tests platform endianness.
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73 */
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74 static void plat_testEndian (void)
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75 {
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76 Uint16 value = 0x1234;
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77 int real_byteorder;
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78 Uint16 value16 = 0xCDAB;
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79 Uint16 swapped16 = 0xABCD;
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80 Uint32 value32 = 0xEFBEADDE;
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81 Uint32 swapped32 = 0xDEADBEEF;
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82 #ifdef SDL_HAS_64BIT_TYPE
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83 Uint64 value64, swapped64;
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84 value64 = 0xEFBEADDE;
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85 value64 <<= 32;
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86 value64 |= 0xCDAB3412;
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87 swapped64 = 0x1234ABCD;
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88 swapped64 <<= 32;
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89 swapped64 |= 0xDEADBEEF;
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90 #endif
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91
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92 SDL_ATbegin( "Endianness" );
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93
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94 /* Test endianness. */
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95 if ((*((char *) &value) >> 4) == 0x1) {
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96 real_byteorder = SDL_BIG_ENDIAN;
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97 } else {
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98 real_byteorder = SDL_LIL_ENDIAN;
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99 }
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100 if (SDL_ATvassert( real_byteorder == SDL_BYTEORDER,
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101 "Machine detected as %s endian but appears to be %s endian.",
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102 (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big",
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103 (real_byteorder == SDL_LIL_ENDIAN) ? "little" : "big" ))
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104 return;
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105
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106 /* Test 16 swap. */
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107 if (SDL_ATvassert( SDL_Swap16(value16) == swapped16,
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108 "16 bit swapped incorrectly: 0x%X => 0x%X",
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109 value16, SDL_Swap16(value16) ))
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110 return;
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111
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112 /* Test 32 swap. */
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113 if (SDL_ATvassert( SDL_Swap32(value32) == swapped32,
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114 "32 bit swapped incorrectly: 0x%X => 0x%X",
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115 value32, SDL_Swap32(value32) ))
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116 return;
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117
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118 #ifdef SDL_HAS_64BIT_TYPE
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119 /* Test 64 swap. */
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120 if (SDL_ATvassert( SDL_Swap64(value64) == swapped64,
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121 #ifdef _MSC_VER
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122 "64 bit swapped incorrectly: 0x%I64X => 0x%I64X",
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123 #else
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124 "64 bit swapped incorrectly: 0x%llX => 0x%llX",
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125 #endif
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126 value64, SDL_Swap64(value64) ))
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127 return;
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128 #endif
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129
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130 SDL_ATend();
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131 }
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132
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133
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134 /**
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135 * @brief Platform test entrypoint.
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136 */
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137 #ifdef TEST_STANDALONE
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138 int main( int argc, const char *argv[] )
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139 {
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140 (void) argc;
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141 (void) argv;
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142 #else /* TEST_STANDALONE */
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143 int test_platform (void)
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144 {
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145 #endif /* TEST_STANDALONE */
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146
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147 SDL_ATinit( "Platform" );
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148
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149 /* Debug information. */
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150 SDL_ATprintVerbose( 1, "%s System detected\n", SDL_GetPlatform() );
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151 SDL_ATprintVerbose( 1, "System is %s endian\n",
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152 #ifdef SDL_LIL_ENDIAN
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153 "little"
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154 #else
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155 "big"
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156 #endif
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157 );
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158 SDL_ATprintVerbose( 1, "Available extensions:\n" );
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159 SDL_ATprintVerbose( 1, " RDTSC %s\n", SDL_HasRDTSC()? "detected" : "not detected" );
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160 SDL_ATprintVerbose( 1, " MMX %s\n", SDL_HasMMX()? "detected" : "not detected" );
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161 SDL_ATprintVerbose( 1, " MMX Ext %s\n", SDL_HasMMXExt()? "detected" : "not detected" );
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162 SDL_ATprintVerbose( 1, " 3DNow %s\n", SDL_Has3DNow()? "detected" : "not detected" );
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163 SDL_ATprintVerbose( 1, " 3DNow Ext %s\n",
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164 SDL_Has3DNowExt()? "detected" : "not detected" );
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165 SDL_ATprintVerbose( 1, " SSE %s\n", SDL_HasSSE()? "detected" : "not detected" );
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166 SDL_ATprintVerbose( 1, " SSE2 %s\n", SDL_HasSSE2()? "detected" : "not detected" );
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167 SDL_ATprintVerbose( 1, " AltiVec %s\n", SDL_HasAltiVec()? "detected" : "not detected" );
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168
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169 plat_testTypes();
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170 plat_testEndian();
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171
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172 return SDL_ATfinish();
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173 }