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annotate test/testplatform.c @ 1555:780fd5b61df1

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Fixed bug #89 Date: Sun, 23 Oct 2005 16:39:03 +0200 From: "A. Schmid" <sahib@phreaker.net> Subject: [SDL] no software surfaces with svgalib driver? Hi, I noticed that the SDL (1.2.9) svgalib driver only makes use of linear addressable (framebuffer) video modes. On older systems (like one of mine), linear addressable modes are often not available. Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is unusable, since VESA only supports framebuffering for VBE 2.0 and later. The changes necessary to add support for software surfaces seem to be relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see attached patch). The code worked fine for me, but it is no more than a proof of concept and should be reviewed (probably has a memory leak when switching modes). It also uses the vgagl library (included in the svgalib package) and needs to be linked against it. -Alex
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 Mar 2006 12:05:16 +0000
parents 7a610f25c12f
children d5298e8f22b3
rev   line source
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1
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2 #include <stdio.h>
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3
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4 #include "SDL.h"
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5 #include "SDL_endian.h"
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6 #include "SDL_cpuinfo.h"
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7
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8 /*
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9 * Watcom C flags these as Warning 201: "Unreachable code" if you just
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10 * compare them directly, so we push it through a function to keep the
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11 * compiler quiet. --ryan.
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12 */
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13 static int badsize(size_t sizeoftype, size_t hardcodetype)
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14 {
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15 return sizeoftype != hardcodetype;
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16 }
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17
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18 int TestTypes(SDL_bool verbose)
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19 {
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20 int error = 0;
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21
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22 if ( badsize(sizeof(Uint8), 1) ) {
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23 if ( verbose )
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24 printf("sizeof(Uint8) != 1, instead = %d\n",
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25 sizeof(Uint8));
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26 ++error;
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27 }
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28 if ( badsize(sizeof(Uint16), 2) ) {
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29 if ( verbose )
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30 printf("sizeof(Uint16) != 2, instead = %d\n",
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31 sizeof(Uint16));
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32 ++error;
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33 }
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34 if ( badsize(sizeof(Uint32), 4) ) {
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35 if ( verbose )
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36 printf("sizeof(Uint32) != 4, instead = %d\n",
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37 sizeof(Uint32));
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38 ++error;
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39 }
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40 #ifdef SDL_HAS_64BIT_TYPE
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41 if ( badsize(sizeof(Uint64), 8) ) {
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42 if ( verbose )
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43 printf("sizeof(Uint64) != 8, instead = %d\n",
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44 sizeof(Uint64));
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45 ++error;
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46 }
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47 #else
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48 if ( verbose ) {
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49 printf("WARNING: No 64-bit datatype on this platform\n");
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50 }
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51 #endif
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52 if ( verbose && !error )
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53 printf("All data types are the expected size.\n");
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54
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55 return( error ? 1 : 0 );
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56 }
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57
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58 int TestEndian(SDL_bool verbose)
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59 {
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60 int error = 0;
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61 Uint16 value = 0x1234;
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62 int real_byteorder;
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63 Uint16 value16 = 0xCDAB;
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64 Uint16 swapped16 = 0xABCD;
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65 Uint32 value32 = 0xEFBEADDE;
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66 Uint32 swapped32 = 0xDEADBEEF;
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67 #ifdef SDL_HAS_64BIT_TYPE
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68 Uint64 value64, swapped64;
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69 value64 = 0xEFBEADDE;
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70 value64 <<= 32;
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71 value64 |= 0xCDAB3412;
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72 swapped64 = 0x1234ABCD;
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73 swapped64 <<= 32;
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74 swapped64 |= 0xDEADBEEF;
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75 #endif
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76
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77 if ( verbose ) {
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78 printf("Detected a %s endian machine.\n",
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79 (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
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80 }
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81 if ( (*((char *)&value) >> 4) == 0x1 ) {
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82 real_byteorder = SDL_BIG_ENDIAN;
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83 } else {
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84 real_byteorder = SDL_LIL_ENDIAN;
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85 }
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86 if ( real_byteorder != SDL_BYTEORDER ) {
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87 if ( verbose ) {
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88 printf("Actually a %s endian machine!\n",
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89 (real_byteorder == SDL_LIL_ENDIAN) ? "little" : "big");
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90 }
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91 ++error;
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92 }
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93 if ( verbose ) {
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94 printf("Value 16 = 0x%X, swapped = 0x%X\n", value16, SDL_Swap16(value16));
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95 }
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96 if ( SDL_Swap16(value16) != swapped16 ) {
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97 if ( verbose ) {
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98 printf("16 bit value swapped incorrectly!\n");
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99 }
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100 ++error;
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101 }
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102 if ( verbose ) {
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103 printf("Value 32 = 0x%X, swapped = 0x%X\n", value32, SDL_Swap32(value32));
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104 }
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105 if ( SDL_Swap32(value32) != swapped32 ) {
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106 if ( verbose ) {
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107 printf("32 bit value swapped incorrectly!\n");
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108 }
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109 ++error;
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110 }
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111 #ifdef SDL_HAS_64BIT_TYPE
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112 if ( verbose ) {
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113 printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64, SDL_Swap64(value64));
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114 }
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115 if ( SDL_Swap64(value64) != swapped64 ) {
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116 if ( verbose ) {
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117 printf("64 bit value swapped incorrectly!\n");
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118 }
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119 ++error;
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120 }
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121 #endif
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122 return( error ? 1 : 0 );
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123 }
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124
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125
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126 int TestCPUInfo(SDL_bool verbose)
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127 {
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128 if ( verbose ) {
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129 printf("RDTSC %s\n", SDL_HasRDTSC() ? "detected" : "not detected");
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130 printf("MMX %s\n", SDL_HasMMX() ? "detected" : "not detected");
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131 printf("MMX Ext %s\n", SDL_HasMMXExt() ? "detected" : "not detected");
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132 printf("3DNow %s\n", SDL_Has3DNow() ? "detected" : "not detected");
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133 printf("3DNow Ext %s\n", SDL_Has3DNowExt() ? "detected" : "not detected");
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134 printf("SSE %s\n", SDL_HasSSE() ? "detected" : "not detected");
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135 printf("SSE2 %s\n", SDL_HasSSE2() ? "detected" : "not detected");
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136 printf("AltiVec %s\n", SDL_HasAltiVec() ? "detected" : "not detected");
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137 }
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138 return(0);
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139 }
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140
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141 int main(int argc, char *argv[])
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142 {
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143 SDL_bool verbose = SDL_TRUE;
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144 int status = 0;
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145
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146 if ( argv[1] && (SDL_strcmp(argv[1], "-q") == 0) ) {
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147 verbose = SDL_FALSE;
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148 }
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149 if ( verbose ) {
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150 printf("This system is running %s\n",
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151 #if __AIX__
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152 "AIX"
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153 #elif __AMIGA__
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154 "AmigaOS"
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155 #elif __BEOS__
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156 "BeOS"
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157 #elif __BSDI__
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158 "BSDI"
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159 #elif __DREAMCAST__
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160 "Dreamcast"
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161 #elif __FREEBSD__
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162 "FreeBSD"
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163 #elif __HPUX__
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164 "HP-UX"
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165 #elif __IRIX__
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166 "Irix"
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167 #elif __LINUX__
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168 "Linux"
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169 #elif __MINT__
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170 "Atari MiNT"
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171 #elif __MACOS__
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172 "MacOS Classic"
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173 #elif __MACOSX__
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174 "MacOS X"
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175 #elif __NETBSD__
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176 "NetBSD"
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177 #elif __OPENBSD__
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178 "OpenBSD"
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179 #elif __OS2__
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180 "OS/2"
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181 #elif __OSF__
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182 "OSF/1"
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183 #elif __QNXNTO__
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184 "QNX Neutrino"
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185 #elif __RISCOS__
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186 "RISC OS"
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187 #elif __SOLARIS__
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188 "Solaris"
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189 #elif __WIN32__
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190 #ifdef _WIN32_WCE
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191 "Windows CE"
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192 #else
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193 "Windows"
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194 #endif
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195 #else
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196 "an unknown operating system! (see SDL_platform.h)"
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197 #endif
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198 );
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199 }
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200
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201 status += TestTypes(verbose);
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202 status += TestEndian(verbose);
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203 status += TestCPUInfo(verbose);
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204 return status;
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205 }