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annotate test/automated/surface/surface.c @ 3715:3c9d9c052c8f gsoc2009_unit_tests

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Initial revision of SDL_Surface testsuite.
author Edgar Simo <bobbens@gmail.com>
date Wed, 01 Jul 2009 10:22:28 +0000
parents
children ac6bc19a2dfb
rev   line source
3715
3c9d9c052c8f Initial revision of SDL_Surface testsuite.
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1 /**
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2 * Automated SDL_Surface test.
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3 *
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4 * Written by Edgar Simo "bobbens"
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5 *
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6 * Released under Public Domain.
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7 */
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8
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9
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10 #include "SDL.h"
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11 #include "SDL_at.h"
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12
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13
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14 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN)
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15 # define RMASK 0xff000000 /**< Red bit mask. */
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16 # define GMASK 0x00ff0000 /**< Green bit mask. */
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17 # define BMASK 0x0000ff00 /**< Blue bit mask. */
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18 # define AMASK 0x000000ff /**< Alpha bit mask. */
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19 #else
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20 # define RMASK 0x000000ff /**< Red bit mask. */
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21 # define GMASK 0x0000ff00 /**< Green bit mask. */
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22 # define BMASK 0x00ff0000 /**< Blue bit mask. */
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23 # define AMASK 0xff000000 /**< Alpha bit mask. */
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24 #endif
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25
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26
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27 typedef struct SurfaceImage_s {
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28 unsigned int width;
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29 unsigned int height;
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30 unsigned int bytes_per_pixel; /* 3:RGB, 4:RGBA */
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31 const unsigned char pixel_data[];
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32 } SurfaceImage_t;
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33
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34
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35 /*
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36 * Pull in images for testcases.
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37 */
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38 #include "primitives.c"
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39
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40
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41 /**
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42 * @brief Compares a surface and a surface image for equality.
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43 *
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44 * @param sur Surface to compare.
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45 * @param img Image to compare against.
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46 * @return 0 if they are the same, -1 on error and positive if different.
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47 */
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48 static int surface_compare( SDL_Surface *sur, const SurfaceImage_t *img )
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49 {
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50 int ret;
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51 int i,j;
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52 Uint32 pix;
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53 int bpp;
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54 Uint8 *p, *pd;
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55
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56 /* Make sure size is the same. */
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57 if ((sur->w != img->width) || (sur->h != img->height))
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58 return -1;
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59
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60 SDL_LockSurface( sur );
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61
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62 ret = 0;
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63 bpp = sur->format->BytesPerPixel;
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64
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65 /* Compare image - should be same format. */
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66 for (j=0; j<sur->h; j++) {
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67 for (i=0; i<sur->w; i++) {
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68 p = (Uint8 *)sur->pixels + j * sur->pitch + i * bpp;
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69 pd = (Uint8 *)img->pixel_data + (j*img->width + i) * img->bytes_per_pixel;
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70 switch (bpp) {
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71 case 1:
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72 /* Paletted not supported atm. */
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73 ret += 1;
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74 break;
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75
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76 case 2:
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77 /* 16 BPP not supported atm. */
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78 ret += 1;
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79 break;
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80
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81 case 3:
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82 /* 24 BPP not supported atm. */
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83 ret += 1;
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84 break;
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85
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86 case 4:
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87 ret += !( (p[0] == pd[0]) &&
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88 (p[1] == pd[1]) &&
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89 (p[2] == pd[2]) );
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90 break;
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91 }
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92 }
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93 }
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94
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95 SDL_UnlockSurface( sur );
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96
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97 return ret;
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98 }
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99
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100
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101 /**
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102 * @brief Tests the SDL primitives for rendering.
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103 */
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104 static void surface_testPrimitives (void)
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105 {
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106 int ret;
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107 int x, y;
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108 SDL_Rect rect;
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109 SDL_Surface *testsur;
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110
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111 SDL_ATbegin( "Primitives Test" );
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112
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113 /* Create the surface. */
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114 testsur = SDL_CreateRGBSurface( 0, 80, 60, 32,
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115 RMASK, GMASK, BMASK, AMASK );
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116 if (SDL_ATassert( "SDL_CreateRGBSurface", testsur != NULL))
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117 return;
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118
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119 /* Draw a rectangle. */
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120 rect.x = 40;
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121 rect.y = 0;
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122 rect.w = 40;
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123 rect.h = 80;
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124 ret = SDL_FillRect( testsur, &rect,
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125 SDL_MapRGB( testsur->format, 13, 73, 200 ) );
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126 if (SDL_ATassert( "SDL_FillRect", ret == 0))
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127 return;
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128
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129 /* Draw a rectangle. */
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130 rect.x = 10;
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131 rect.y = 10;
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132 rect.w = 60;
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133 rect.h = 40;
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134 ret = SDL_FillRect( testsur, &rect,
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135 SDL_MapRGB( testsur->format, 200, 0, 100 ) );
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136 if (SDL_ATassert( "SDL_FillRect", ret == 0))
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137 return;
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138
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139 /* Draw some points like so:
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140 * X.X.X.X..
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141 * .X.X.X.X.
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142 * X.X.X.X.. */
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143 for (y=0; y<3; y++) {
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144 x = y % 2;
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145 for (; x<80; x+=2)
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146 ret = SDL_DrawPoint( testsur, x, y,
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147 SDL_MapRGB( testsur->format, x*y, x*y/2, x*y/3 ) );
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148 if (SDL_ATassert( "SDL_DrawPoint", ret == 0))
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149 return;
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150 }
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151
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152 /* Draw some lines. */
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153 ret = SDL_DrawLine( testsur, 0, 30, 80, 30,
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154 SDL_MapRGB( testsur->format, 0, 255, 0 ) );
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155 if (SDL_ATassert( "SDL_DrawLine", ret == 0))
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156 return;
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157 ret = SDL_DrawLine( testsur, 40, 30, 40, 60,
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158 SDL_MapRGB( testsur->format, 55, 55, 5 ) );
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159 if (SDL_ATassert( "SDL_DrawLine", ret == 0))
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160 return;
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161 ret = SDL_DrawLine( testsur, 0, 60, 80, 0,
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162 SDL_MapRGB( testsur->format, 5, 105, 105 ) );
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163 if (SDL_ATassert( "SDL_DrawLine", ret == 0))
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164 return;
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165
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166 /* See if it's the same. */
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167 if (SDL_ATassert( "Primitives output not the same.",
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168 surface_compare( testsur, &img_primitives )==0 ))
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169 return;
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170
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171 /* Clean up. */
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172 SDL_FreeSurface( testsur );
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173
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174 SDL_ATend();
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175 }
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176
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177
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178 /**
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179 * @brief Entry point.
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180 */
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181 int main( int argc, const char *argv[] )
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182 {
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183 SDL_ATinit( "SDL_Surface" );
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184
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185 /* Initializes the SDL subsystems. */
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186 SDL_Init(0);
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187
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188 surface_testPrimitives();
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189 /*surface_testPrimitivesAlpha();*/
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190
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191 /* Exit SDL. */
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192 SDL_Quit();
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193
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194 return SDL_ATfinish(1);
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195 }