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1 #include <stdlib.h>
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2 #include <stdio.h>
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3 #include <string.h>
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4 #include <math.h>
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5
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6 #include "SDL.h"
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7
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8 #ifdef HAVE_OPENGL
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9 #ifdef WIN32
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10 #include <windows.h>
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11 #endif
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12 #if defined(__APPLE__) && defined(__MACH__)
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13 #include <OpenGL/gl.h>
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14 #else
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15 #include <GL/gl.h>
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16 #endif
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17
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18 #define SHADED_CUBE
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19
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20
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21 void HotKey_ToggleFullScreen(void)
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22 {
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23 SDL_Surface *screen;
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24
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25 screen = SDL_GetVideoSurface();
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26 if ( SDL_WM_ToggleFullScreen(screen) ) {
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27 printf("Toggled fullscreen mode - now %s\n",
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28 (screen->flags&SDL_FULLSCREEN) ? "fullscreen" : "windowed");
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29 } else {
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30 printf("Unable to toggle fullscreen mode\n");
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31 }
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32 }
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33
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34 void HotKey_ToggleGrab(void)
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35 {
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36 SDL_GrabMode mode;
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37
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38 printf("Ctrl-G: toggling input grab!\n");
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39 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY);
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40 if ( mode == SDL_GRAB_ON ) {
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41 printf("Grab was on\n");
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42 } else {
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43 printf("Grab was off\n");
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44 }
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45 mode = SDL_WM_GrabInput(!mode);
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46 if ( mode == SDL_GRAB_ON ) {
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47 printf("Grab is now on\n");
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48 } else {
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49 printf("Grab is now off\n");
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50 }
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51 }
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52
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53 void HotKey_Iconify(void)
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54 {
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55 printf("Ctrl-Z: iconifying window!\n");
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56 SDL_WM_IconifyWindow();
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57 }
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58
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59 int HandleEvent(SDL_Event *event)
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60 {
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61 int done;
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62
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63 done = 0;
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64 switch( event->type ) {
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65 case SDL_ACTIVEEVENT:
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66 /* See what happened */
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67 printf( "app %s ", event->active.gain ? "gained" : "lost" );
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68 if ( event->active.state & SDL_APPACTIVE ) {
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69 printf( "active " );
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70 } else if ( event->active.state & SDL_APPMOUSEFOCUS ) {
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71 printf( "mouse " );
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72 } else if ( event->active.state & SDL_APPINPUTFOCUS ) {
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73 printf( "input " );
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74 }
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75 printf( "focus\n" );
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76 break;
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77
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78
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79 case SDL_KEYDOWN:
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80 if ( event->key.keysym.sym == SDLK_ESCAPE ) {
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81 done = 1;
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82 }
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83 if ( (event->key.keysym.sym == SDLK_g) &&
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84 (event->key.keysym.mod & KMOD_CTRL) ) {
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85 HotKey_ToggleGrab();
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86 }
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87 if ( (event->key.keysym.sym == SDLK_z) &&
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88 (event->key.keysym.mod & KMOD_CTRL) ) {
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89 HotKey_Iconify();
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90 }
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91 if ( (event->key.keysym.sym == SDLK_RETURN) &&
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92 (event->key.keysym.mod & KMOD_ALT) ) {
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93 HotKey_ToggleFullScreen();
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94 }
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95 printf("key '%s' pressed\n",
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96 SDL_GetKeyName(event->key.keysym.sym));
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97 break;
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98 case SDL_QUIT:
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99 done = 1;
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100 break;
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101 }
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102 return(done);
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103 }
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104
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105 void DrawSDLLogo(void)
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106 {
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107 static SDL_Surface *image = NULL;
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108 static int x = 0;
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109 static int y = 0;
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110 static int delta_x = 1;
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111 static int delta_y = 1;
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112 static Uint32 last_moved = 0;
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113
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114 SDL_Rect dst;
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115 SDL_Surface *screen;
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116
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117 if ( image == NULL ) {
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118 SDL_Surface *temp;
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119
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120 temp = SDL_LoadBMP("icon.bmp");
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121 if ( temp == NULL ) {
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122 return;
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123 }
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124 image = SDL_CreateRGBSurface(
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125 SDL_SWSURFACE,
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126 temp->w, temp->h,
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127 32,
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128 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
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129 0x000000FF,
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130 0x0000FF00,
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131 0x00FF0000,
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132 0xFF000000
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133 #else
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134 0xFF000000,
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135 0x00FF0000,
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136 0x0000FF00,
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137 0x000000FF
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138 #endif
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139 );
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140 if ( image != NULL ) {
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141 SDL_BlitSurface(temp, NULL, image, NULL);
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142 }
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143 SDL_FreeSurface(temp);
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144 if ( image == NULL ) {
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145 return;
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146 }
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147 }
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148
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149 screen = SDL_GetVideoSurface();
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150
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151 /* Show the image on the screen */
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152 dst.x = x;
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153 dst.y = y;
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154 dst.w = image->w;
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155 dst.h = image->h;
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156
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157 /* Move it around
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158 Note that we do not clear the old position. This is because we
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159 perform a glClear() which clears the framebuffer and then only
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160 update the new area.
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161 Note that you can also achieve interesting effects by modifying
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162 the screen surface alpha channel. It's set to 255 by default..
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163 */
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164 if ( (SDL_GetTicks() - last_moved) > 100 ) {
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165 x += delta_x;
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166 if ( x < 0 ) {
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167 x = 0;
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168 delta_x = -delta_x;
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169 } else
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170 if ( (x+image->w) > screen->w ) {
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171 x = screen->w-image->w;
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172 delta_x = -delta_x;
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173 }
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174 y += delta_y;
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175 if ( y < 0 ) {
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176 y = 0;
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177 delta_y = -delta_y;
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178 } else
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179 if ( (y+image->h) > screen->h ) {
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180 y = screen->h-image->h;
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181 delta_y = -delta_y;
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182 }
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183 SDL_BlitSurface(image, NULL, screen, &dst);
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184 }
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185 SDL_UpdateRects(screen, 1, &dst);
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186 }
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187
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188 int RunGLTest( int argc, char* argv[],
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189 int logo, int slowly, int bpp, float gamma )
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190 {
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191 int i;
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192 int rgb_size[3];
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193 int w = 640;
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194 int h = 480;
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195 int done = 0;
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196 int frames;
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197 Uint32 start_time, this_time;
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198 float color[8][3]= {{ 1.0, 1.0, 0.0},
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199 { 1.0, 0.0, 0.0},
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200 { 0.0, 0.0, 0.0},
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201 { 0.0, 1.0, 0.0},
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202 { 0.0, 1.0, 1.0},
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203 { 1.0, 1.0, 1.0},
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204 { 1.0, 0.0, 1.0},
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205 { 0.0, 0.0, 1.0}};
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206 float cube[8][3]= {{ 0.5, 0.5, -0.5},
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207 { 0.5, -0.5, -0.5},
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208 {-0.5, -0.5, -0.5},
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209 {-0.5, 0.5, -0.5},
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210 {-0.5, 0.5, 0.5},
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211 { 0.5, 0.5, 0.5},
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212 { 0.5, -0.5, 0.5},
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213 {-0.5, -0.5, 0.5}};
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214 Uint32 video_flags;
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215 int value;
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216
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217 if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
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218 fprintf(stderr,"Couldn't initialize SDL: %s\n",SDL_GetError());
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219 exit( 1 );
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220 }
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221
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222 /* See if we should detect the display depth */
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223 if ( bpp == 0 ) {
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224 if ( SDL_GetVideoInfo()->vfmt->BitsPerPixel <= 8 ) {
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225 bpp = 8;
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226 } else {
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227 bpp = 16; /* More doesn't seem to work */
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228 }
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229 }
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230
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231 /* Set the flags we want to use for setting the video mode */
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232 if ( logo ) {
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233 video_flags = SDL_OPENGLBLIT;
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234 } else {
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235 video_flags = SDL_OPENGL;
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236 }
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237 for ( i=1; argv[i]; ++i ) {
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238 if ( strcmp(argv[1], "-fullscreen") == 0 ) {
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239 video_flags |= SDL_FULLSCREEN;
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240 }
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241 }
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242
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243 /* Initialize the display */
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244 switch (bpp) {
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245 case 8:
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246 rgb_size[0] = 2;
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247 rgb_size[1] = 3;
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248 rgb_size[2] = 3;
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249 break;
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250 case 15:
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251 case 16:
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252 rgb_size[0] = 5;
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253 rgb_size[1] = 5;
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254 rgb_size[2] = 5;
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255 break;
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256 default:
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257 rgb_size[0] = 8;
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258 rgb_size[1] = 8;
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259 rgb_size[2] = 8;
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260 break;
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261 }
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262 SDL_GL_SetAttribute( SDL_GL_RED_SIZE, rgb_size[0] );
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263 SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, rgb_size[1] );
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264 SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, rgb_size[2] );
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265 SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
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266 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
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267 if ( SDL_SetVideoMode( w, h, bpp, video_flags ) == NULL ) {
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268 fprintf(stderr, "Couldn't set GL mode: %s\n", SDL_GetError());
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269 SDL_Quit();
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270 exit(1);
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271 }
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272
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273 printf("Screen BPP: %d\n", SDL_GetVideoSurface()->format->BitsPerPixel);
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274 printf("\n");
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275 printf( "Vendor : %s\n", glGetString( GL_VENDOR ) );
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276 printf( "Renderer : %s\n", glGetString( GL_RENDERER ) );
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277 printf( "Version : %s\n", glGetString( GL_VERSION ) );
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278 printf( "Extensions : %s\n", glGetString( GL_EXTENSIONS ) );
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279 printf("\n");
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280
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281 SDL_GL_GetAttribute( SDL_GL_RED_SIZE, &value );
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282 printf( "SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0],value);
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283 SDL_GL_GetAttribute( SDL_GL_GREEN_SIZE, &value );
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284 printf( "SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1],value);
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285 SDL_GL_GetAttribute( SDL_GL_BLUE_SIZE, &value );
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286 printf( "SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2],value);
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287 SDL_GL_GetAttribute( SDL_GL_DEPTH_SIZE, &value );
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288 printf( "SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value );
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289 SDL_GL_GetAttribute( SDL_GL_DOUBLEBUFFER, &value );
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290 printf( "SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value );
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291
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292 /* Set the window manager title bar */
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293 SDL_WM_SetCaption( "SDL GL test", "testgl" );
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294
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295 /* Set the gamma for the window */
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296 if ( gamma != 0.0 ) {
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297 SDL_SetGamma(gamma, gamma, gamma);
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298 }
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299
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300 glViewport( 0, 0, w, h );
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301 glMatrixMode( GL_PROJECTION );
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302 glLoadIdentity( );
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303
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304 glOrtho( -2.0, 2.0, -2.0, 2.0, -20.0, 20.0 );
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305
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306 glMatrixMode( GL_MODELVIEW );
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307 glLoadIdentity( );
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308
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309 glEnable(GL_DEPTH_TEST);
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310
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311 glDepthFunc(GL_LESS);
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312
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313 glShadeModel(GL_SMOOTH);
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314
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315 /* Loop until done. */
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316 start_time = SDL_GetTicks();
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317 frames = 0;
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318 while( !done ) {
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319 GLenum gl_error;
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320 char* sdl_error;
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321 SDL_Event event;
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322
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323 /* Do our drawing, too. */
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324 glClearColor( 0.0, 0.0, 0.0, 1.0 );
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325 glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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326
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327 glBegin( GL_QUADS );
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328
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329 #ifdef SHADED_CUBE
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330 glColor3fv(color[0]);
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331 glVertex3fv(cube[0]);
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332 glColor3fv(color[1]);
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333 glVertex3fv(cube[1]);
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334 glColor3fv(color[2]);
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335 glVertex3fv(cube[2]);
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336 glColor3fv(color[3]);
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337 glVertex3fv(cube[3]);
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338
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339 glColor3fv(color[3]);
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340 glVertex3fv(cube[3]);
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341 glColor3fv(color[4]);
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342 glVertex3fv(cube[4]);
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343 glColor3fv(color[7]);
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344 glVertex3fv(cube[7]);
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345 glColor3fv(color[2]);
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346 glVertex3fv(cube[2]);
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347
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348 glColor3fv(color[0]);
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349 glVertex3fv(cube[0]);
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350 glColor3fv(color[5]);
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351 glVertex3fv(cube[5]);
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352 glColor3fv(color[6]);
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353 glVertex3fv(cube[6]);
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354 glColor3fv(color[1]);
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355 glVertex3fv(cube[1]);
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356
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357 glColor3fv(color[5]);
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358 glVertex3fv(cube[5]);
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359 glColor3fv(color[4]);
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360 glVertex3fv(cube[4]);
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361 glColor3fv(color[7]);
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362 glVertex3fv(cube[7]);
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363 glColor3fv(color[6]);
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364 glVertex3fv(cube[6]);
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365
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366 glColor3fv(color[5]);
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367 glVertex3fv(cube[5]);
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368 glColor3fv(color[0]);
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369 glVertex3fv(cube[0]);
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370 glColor3fv(color[3]);
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371 glVertex3fv(cube[3]);
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372 glColor3fv(color[4]);
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373 glVertex3fv(cube[4]);
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374
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375 glColor3fv(color[6]);
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376 glVertex3fv(cube[6]);
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377 glColor3fv(color[1]);
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378 glVertex3fv(cube[1]);
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379 glColor3fv(color[2]);
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380 glVertex3fv(cube[2]);
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381 glColor3fv(color[7]);
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382 glVertex3fv(cube[7]);
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383 #else // flat cube
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384 glColor3f(1.0, 0.0, 0.0);
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385 glVertex3fv(cube[0]);
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386 glVertex3fv(cube[1]);
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387 glVertex3fv(cube[2]);
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388 glVertex3fv(cube[3]);
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389
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390 glColor3f(0.0, 1.0, 0.0);
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391 glVertex3fv(cube[3]);
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392 glVertex3fv(cube[4]);
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393 glVertex3fv(cube[7]);
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394 glVertex3fv(cube[2]);
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395
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396 glColor3f(0.0, 0.0, 1.0);
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397 glVertex3fv(cube[0]);
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398 glVertex3fv(cube[5]);
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399 glVertex3fv(cube[6]);
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400 glVertex3fv(cube[1]);
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401
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402 glColor3f(0.0, 1.0, 1.0);
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403 glVertex3fv(cube[5]);
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404 glVertex3fv(cube[4]);
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405 glVertex3fv(cube[7]);
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406 glVertex3fv(cube[6]);
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407
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408 glColor3f(1.0, 1.0, 0.0);
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409 glVertex3fv(cube[5]);
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410 glVertex3fv(cube[0]);
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411 glVertex3fv(cube[3]);
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412 glVertex3fv(cube[4]);
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413
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414 glColor3f(1.0, 0.0, 1.0);
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415 glVertex3fv(cube[6]);
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416 glVertex3fv(cube[1]);
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417 glVertex3fv(cube[2]);
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418 glVertex3fv(cube[7]);
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419 #endif /* SHADED_CUBE */
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420
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421 glEnd( );
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422
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423 glMatrixMode(GL_MODELVIEW);
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424 glRotatef(5.0, 1.0, 1.0, 1.0);
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425
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426 /* Draw 2D logo onto the 3D display */
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427 if ( logo ) {
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428 DrawSDLLogo();
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429 }
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430
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431 SDL_GL_SwapBuffers( );
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432
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433 /* Check for error conditions. */
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434 gl_error = glGetError( );
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435
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436 if( gl_error != GL_NO_ERROR ) {
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437 fprintf( stderr, "testgl: OpenGL error: %d\n", gl_error );
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438 }
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439
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440 sdl_error = SDL_GetError( );
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441
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442 if( sdl_error[0] != '\0' ) {
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443 fprintf(stderr, "testgl: SDL error '%s'\n", sdl_error);
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444 SDL_ClearError();
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445 }
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446
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447 /* Allow the user to see what's happening */
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448 if ( slowly ) {
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449 SDL_Delay( 20 );
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450 }
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451
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452 /* Check if there's a pending event. */
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453 while( SDL_PollEvent( &event ) ) {
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454 done = HandleEvent(&event);
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455 }
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456 ++frames;
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457 }
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458
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459 /* Print out the frames per second */
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460 this_time = SDL_GetTicks();
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461 if ( this_time != start_time ) {
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462 printf("%2.2f FPS\n",
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463 ((float)frames/(this_time-start_time))*1000.0);
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464 }
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465
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466 /* Destroy our GL context, etc. */
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467 SDL_Quit( );
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468 return(0);
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469 }
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470
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471 int main(int argc, char *argv[])
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472 {
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473 int i, logo;
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474 int numtests;
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475 int bpp = 0;
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476 int slowly;
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477 float gamma = 0.0;
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478
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479 logo = 0;
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480 slowly = 0;
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481 numtests = 1;
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482 for ( i=1; argv[i]; ++i ) {
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483 if ( strcmp(argv[i], "-twice") == 0 ) {
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484 ++numtests;
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485 }
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486 if ( strcmp(argv[i], "-logo") == 0 ) {
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487 logo = 1;
|
|
488 }
|
|
489 if ( strcmp(argv[i], "-slow") == 0 ) {
|
|
490 slowly = 1;
|
|
491 }
|
|
492 if ( strcmp(argv[i], "-bpp") == 0 ) {
|
|
493 bpp = atoi(argv[++i]);
|
|
494 }
|
|
495 if ( strcmp(argv[i], "-gamma") == 0 ) {
|
|
496 gamma = (float)atof(argv[++i]);
|
|
497 }
|
|
498 if ( strncmp(argv[i], "-h", 2) == 0 ) {
|
|
499 printf(
|
|
500 "Usage: %s [-twice] [-logo] [-slow] [-bpp n] [-gamma n]\n",
|
|
501 argv[0]);
|
|
502 exit(0);
|
|
503 }
|
|
504 }
|
|
505 for ( i=0; i<numtests; ++i ) {
|
|
506 RunGLTest(argc, argv, logo, slowly, bpp, gamma);
|
|
507 }
|
|
508 return 0;
|
|
509 }
|
|
510
|
|
511 #else /* HAVE_OPENGL */
|
|
512
|
|
513 int main(int argc, char *argv[])
|
|
514 {
|
|
515 printf("No OpenGL support on this system\n");
|
|
516 return 1;
|
|
517 }
|
|
518
|
|
519 #endif /* HAVE_OPENGL */
|