Mercurial > sdl-ios-xcode
annotate test/testwm.c @ 3558:5f038ec1a1af
Added a test to check the read/write pixels API
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 14 Dec 2009 06:35:59 +0000 |
parents | 6d91cff0ec79 |
children | 1e31a24c41a6 |
rev | line source |
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0 | 1 |
2 /* Test out the window manager interaction functions */ | |
3 | |
4 #include <stdio.h> | |
5 #include <stdlib.h> | |
6 #include <string.h> | |
7 | |
8 #include "SDL.h" | |
9 | |
10 /* Is the cursor visible? */ | |
11 static int visible = 1; | |
12 | |
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13 static Uint8 video_bpp; |
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14 static Uint32 video_flags; |
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15 |
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16 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
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17 static void |
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18 quit(int rc) |
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19 { |
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20 SDL_Quit(); |
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21 exit(rc); |
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22 } |
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23 |
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24 int |
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25 SetVideoMode(int w, int h) |
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26 { |
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27 SDL_Surface *screen; |
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28 int i; |
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29 Uint8 *buffer; |
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30 SDL_Color palette[256]; |
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31 |
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32 screen = SDL_SetVideoMode(w, h, video_bpp, video_flags); |
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33 if (screen == NULL) { |
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34 fprintf(stderr, "Couldn't set %dx%dx%d video mode: %s\n", |
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35 w, h, video_bpp, SDL_GetError()); |
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36 return (-1); |
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37 } |
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38 printf("Running in %s mode\n", screen->flags & SDL_FULLSCREEN ? |
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39 "fullscreen" : "windowed"); |
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40 |
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41 /* Set the surface pixels and refresh! */ |
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42 for (i = 0; i < 256; ++i) { |
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43 palette[i].r = 255 - i; |
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44 palette[i].g = 255 - i; |
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45 palette[i].b = 255 - i; |
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46 } |
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47 SDL_SetColors(screen, palette, 0, 256); |
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48 if (SDL_LockSurface(screen) < 0) { |
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49 fprintf(stderr, "Couldn't lock display surface: %s\n", |
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50 SDL_GetError()); |
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51 return (-1); |
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52 } |
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53 buffer = (Uint8 *) screen->pixels; |
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54 for (i = 0; i < screen->h; ++i) { |
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55 memset(buffer, (i * 255) / screen->h, |
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56 screen->w * screen->format->BytesPerPixel); |
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57 buffer += screen->pitch; |
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58 } |
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59 SDL_UnlockSurface(screen); |
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60 SDL_UpdateRect(screen, 0, 0, 0, 0); |
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61 |
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62 return (0); |
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63 } |
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64 |
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65 SDL_Surface * |
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66 LoadIconSurface(char *file, Uint8 ** maskp) |
0 | 67 { |
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68 SDL_Surface *icon; |
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69 Uint8 *pixels; |
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70 Uint8 *mask; |
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71 int mlen, i, j; |
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72 |
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73 *maskp = NULL; |
0 | 74 |
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75 /* Load the icon surface */ |
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76 icon = SDL_LoadBMP(file); |
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77 if (icon == NULL) { |
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78 fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError()); |
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79 return (NULL); |
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80 } |
0 | 81 |
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82 /* Check width and height |
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83 if ( (icon->w%8) != 0 ) { |
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84 fprintf(stderr, "Icon width must be a multiple of 8!\n"); |
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85 SDL_FreeSurface(icon); |
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86 return(NULL); |
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87 } |
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88 */ |
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89 |
0 | 90 |
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91 if (icon->format->palette == NULL) { |
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92 fprintf(stderr, "Icon must have a palette!\n"); |
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93 SDL_FreeSurface(icon); |
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94 return (NULL); |
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95 } |
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96 |
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97 /* Set the colorkey */ |
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98 SDL_SetColorKey(icon, SDL_SRCCOLORKEY, *((Uint8 *) icon->pixels)); |
0 | 99 |
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100 /* Create the mask */ |
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101 pixels = (Uint8 *) icon->pixels; |
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102 printf("Transparent pixel: (%d,%d,%d)\n", |
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103 icon->format->palette->colors[*pixels].r, |
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104 icon->format->palette->colors[*pixels].g, |
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105 icon->format->palette->colors[*pixels].b); |
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106 mlen = (icon->w * icon->h + 7) / 8; |
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107 mask = (Uint8 *) malloc(mlen); |
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108 if (mask == NULL) { |
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109 fprintf(stderr, "Out of memory!\n"); |
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110 SDL_FreeSurface(icon); |
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111 return (NULL); |
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112 } |
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113 memset(mask, 0, mlen); |
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114 for (i = 0; i < icon->h; i++) |
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115 for (j = 0; j < icon->w; j++) { |
591 | 116 int pindex = i * icon->pitch + j; |
117 int mindex = i * icon->w + j; | |
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118 if (pixels[pindex] != *pixels) |
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119 mask[mindex >> 3] |= 1 << (7 - (mindex & 7)); |
591 | 120 } |
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121 *maskp = mask; |
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122 return (icon); |
0 | 123 } |
124 | |
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125 void |
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126 HotKey_ToggleFullScreen(void) |
0 | 127 { |
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128 SDL_Surface *screen; |
0 | 129 |
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130 screen = SDL_GetVideoSurface(); |
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131 if (SDL_WM_ToggleFullScreen(screen)) { |
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132 printf("Toggled fullscreen mode - now %s\n", |
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133 (screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed"); |
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134 } else { |
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135 printf("Unable to toggle fullscreen mode\n"); |
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136 video_flags ^= SDL_FULLSCREEN; |
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137 SetVideoMode(screen->w, screen->h); |
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138 } |
0 | 139 } |
140 | |
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141 void |
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142 HotKey_ToggleGrab(void) |
0 | 143 { |
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144 SDL_GrabMode mode; |
0 | 145 |
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146 printf("Ctrl-G: toggling input grab!\n"); |
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147 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); |
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148 if (mode == SDL_GRAB_ON) { |
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149 printf("Grab was on\n"); |
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150 } else { |
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151 printf("Grab was off\n"); |
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152 } |
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153 mode = SDL_WM_GrabInput(mode ? SDL_GRAB_OFF : SDL_GRAB_ON); |
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154 if (mode == SDL_GRAB_ON) { |
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155 printf("Grab is now on\n"); |
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156 } else { |
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157 printf("Grab is now off\n"); |
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158 } |
0 | 159 } |
160 | |
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161 void |
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162 HotKey_Iconify(void) |
0 | 163 { |
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164 printf("Ctrl-Z: iconifying window!\n"); |
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165 SDL_WM_IconifyWindow(); |
0 | 166 } |
167 | |
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168 void |
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169 HotKey_Quit(void) |
0 | 170 { |
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171 SDL_Event event; |
0 | 172 |
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173 printf("Posting internal quit request\n"); |
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174 event.type = SDL_USEREVENT; |
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175 SDL_PushEvent(&event); |
0 | 176 } |
177 | |
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178 static int (SDLCALL * old_filterfunc) (void *, SDL_Event *); |
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179 static void *old_filterdata; |
0 | 180 |
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181 int SDLCALL |
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182 FilterEvents(void *userdata, SDL_Event * event) |
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183 { |
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184 static int reallyquit = 0; |
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185 |
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186 if (old_filterfunc) { |
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187 old_filterfunc(old_filterdata, event); |
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188 } |
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189 |
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190 switch (event->type) { |
0 | 191 |
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192 case SDL_ACTIVEEVENT: |
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193 /* See what happened */ |
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194 printf("App %s ", event->active.gain ? "gained" : "lost"); |
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195 if (event->active.state & SDL_APPACTIVE) |
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196 printf("active "); |
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197 if (event->active.state & SDL_APPINPUTFOCUS) |
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198 printf("input "); |
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199 if (event->active.state & SDL_APPMOUSEFOCUS) |
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200 printf("mouse "); |
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201 printf("focus\n"); |
0 | 202 |
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203 /* See if we are iconified or restored */ |
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204 if (event->active.state & SDL_APPACTIVE) { |
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205 printf("App has been %s\n", |
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206 event->active.gain ? "restored" : "iconified"); |
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207 } |
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208 return (0); |
0 | 209 |
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210 /* We want to toggle visibility on buttonpress */ |
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211 case SDL_MOUSEBUTTONDOWN: |
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212 case SDL_MOUSEBUTTONUP: |
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213 if (event->button.state == SDL_PRESSED) { |
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214 visible = !visible; |
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215 SDL_ShowCursor(visible); |
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216 } |
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217 printf("Mouse button %d has been %s at %d,%d\n", |
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218 event->button.button, |
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219 (event->button.state == SDL_PRESSED) ? "pressed" : "released", |
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220 event->button.x, event->button.y); |
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221 return (0); |
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222 |
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223 /* Show relative mouse motion */ |
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224 case SDL_MOUSEMOTION: |
0 | 225 #if 0 |
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226 printf("Mouse motion: {%d,%d} (%d,%d)\n", |
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227 event->motion.x, event->motion.y, |
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228 event->motion.xrel, event->motion.yrel); |
0 | 229 #endif |
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230 return (0); |
0 | 231 |
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232 case SDL_KEYDOWN: |
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233 if (event->key.keysym.sym == SDLK_ESCAPE) { |
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234 HotKey_Quit(); |
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235 } |
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236 if ((event->key.keysym.sym == SDLK_g) && |
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237 (event->key.keysym.mod & KMOD_CTRL)) { |
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238 HotKey_ToggleGrab(); |
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239 } |
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240 if ((event->key.keysym.sym == SDLK_z) && |
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241 (event->key.keysym.mod & KMOD_CTRL)) { |
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242 HotKey_Iconify(); |
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243 } |
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244 if ((event->key.keysym.sym == SDLK_RETURN) && |
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245 (event->key.keysym.mod & KMOD_ALT)) { |
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246 HotKey_ToggleFullScreen(); |
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247 } |
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248 return (0); |
0 | 249 |
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250 /* Pass the video resize event through .. */ |
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251 case SDL_VIDEORESIZE: |
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252 return (1); |
0 | 253 |
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254 /* This is important! Queue it if we want to quit. */ |
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255 case SDL_QUIT: |
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256 if (!reallyquit) { |
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257 reallyquit = 1; |
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258 printf("Quit requested\n"); |
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259 return (0); |
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260 } |
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261 printf("Quit demanded\n"); |
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262 return (1); |
0 | 263 |
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264 /* This will never happen because events queued directly |
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265 to the event queue are not filtered. |
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266 */ |
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267 case SDL_USEREVENT: |
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268 return (1); |
0 | 269 |
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270 /* Drop all other events */ |
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271 default: |
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272 return (0); |
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273 } |
0 | 274 } |
275 | |
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276 int |
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277 main(int argc, char *argv[]) |
0 | 278 { |
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279 SDL_Event event; |
2060 | 280 const char *title; |
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281 SDL_Surface *icon; |
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282 Uint8 *icon_mask; |
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283 int parsed; |
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284 int w, h; |
0 | 285 |
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286 if (SDL_Init(SDL_INIT_VIDEO) < 0) { |
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287 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); |
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288 return (1); |
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289 } |
0 | 290 |
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291 /* Check command line arguments */ |
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292 w = 640; |
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293 h = 480; |
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294 video_bpp = 8; |
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295 video_flags = SDL_SWSURFACE; |
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296 parsed = 1; |
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297 while (parsed) { |
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298 if ((argc >= 2) && (strcmp(argv[1], "-fullscreen") == 0)) { |
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299 video_flags |= SDL_FULLSCREEN; |
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300 argc -= 1; |
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301 argv += 1; |
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302 } else if ((argc >= 2) && (strcmp(argv[1], "-resize") == 0)) { |
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303 video_flags |= SDL_RESIZABLE; |
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304 argc -= 1; |
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305 argv += 1; |
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306 } else if ((argc >= 2) && (strcmp(argv[1], "-noframe") == 0)) { |
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307 video_flags |= SDL_NOFRAME; |
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308 argc -= 1; |
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309 argv += 1; |
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310 } else if ((argc >= 3) && (strcmp(argv[1], "-width") == 0)) { |
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311 w = atoi(argv[2]); |
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312 argc -= 2; |
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313 argv += 2; |
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314 } else if ((argc >= 3) && (strcmp(argv[1], "-height") == 0)) { |
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315 h = atoi(argv[2]); |
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316 argc -= 2; |
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317 argv += 2; |
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318 } else if ((argc >= 3) && (strcmp(argv[1], "-bpp") == 0)) { |
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319 video_bpp = atoi(argv[2]); |
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320 argc -= 2; |
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321 argv += 2; |
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322 } else { |
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323 parsed = 0; |
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324 } |
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325 } |
0 | 326 |
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327 /* Set the icon -- this must be done before the first mode set */ |
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328 icon = LoadIconSurface("icon.bmp", &icon_mask); |
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329 if (icon != NULL) { |
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330 SDL_WM_SetIcon(icon, icon_mask); |
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331 } |
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332 if (icon_mask != NULL) |
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333 free(icon_mask); |
0 | 334 |
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335 /* Set the title bar */ |
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336 if (argv[1] == NULL) |
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337 title = "Testing 1.. 2.. 3..."; |
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338 else |
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339 title = argv[1]; |
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340 SDL_WM_SetCaption(title, "testwm"); |
0 | 341 |
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342 /* See if it's really set */ |
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343 SDL_WM_GetCaption(&title, NULL); |
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344 if (title) |
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345 printf("Title was set to: %s\n", title); |
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346 else |
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347 printf("No window title was set!\n"); |
0 | 348 |
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349 /* Initialize the display */ |
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350 if (SetVideoMode(w, h) < 0) { |
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351 quit(1); |
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352 } |
0 | 353 |
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354 /* Set an event filter that discards everything but QUIT */ |
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355 SDL_GetEventFilter(&old_filterfunc, &old_filterdata); |
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356 SDL_SetEventFilter(FilterEvents, NULL); |
0 | 357 |
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358 /* Ignore key up events, they don't even get filtered */ |
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359 SDL_EventState(SDL_KEYUP, SDL_IGNORE); |
0 | 360 |
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361 /* Loop, waiting for QUIT */ |
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362 while (SDL_WaitEvent(&event)) { |
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363 switch (event.type) { |
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364 case SDL_VIDEORESIZE: |
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365 printf("Got a resize event: %dx%d\n", |
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366 event.resize.w, event.resize.h); |
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367 SetVideoMode(event.resize.w, event.resize.h); |
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368 break; |
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369 case SDL_USEREVENT: |
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370 printf("Handling internal quit request\n"); |
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371 /* Fall through to the quit handler */ |
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372 case SDL_QUIT: |
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373 printf("Bye bye..\n"); |
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374 quit(0); |
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375 default: |
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376 /* This should never happen */ |
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377 printf("Warning: Event %d wasn't filtered\n", event.type); |
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378 break; |
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379 } |
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380 } |
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381 printf("SDL_WaitEvent() error: %s\n", SDL_GetError()); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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382 SDL_Quit(); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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383 return (255); |
0 | 384 } |