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annotate mde/SDL.d @ 27:0aa621b3e070

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Some GUI work, plus a small fix in the paths module. Implemented GUI code to load windows from file with a basic widget and draw. Fixed a bug in mde.resource.paths.mdeDirectory.makeMTReader when called with readOrder == PRIORITY.HIGH_ONLY. committer: Diggory Hardy <diggory.hardy@gmail.com>
author Diggory Hardy <diggory.hardy@gmail.com>
date Fri, 04 Apr 2008 17:07:38 +0100
parents 611f7b9063c6
children f985c28c0ec9
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1 /* LICENSE BLOCK
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2 Part of mde: a Modular D game-oriented Engine
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3 Copyright © 2007-2008 Diggory Hardy
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4
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5 This program is free software: you can redistribute it and/or modify it under the terms
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6 of the GNU General Public License as published by the Free Software Foundation, either
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7 version 2 of the License, or (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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10 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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11 See the GNU General Public License for more details.
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12
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13 You should have received a copy of the GNU General Public License
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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15
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16 /** Just a temporary place to put SDL Init and Video stuff.
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17 */
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18 module mde.SDL;
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19
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20 import mde.scheduler.InitFunctions;
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21 import mde.input.joystick;
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22 import mde.options;
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23 import mde.gl;
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24 import global = mde.global;
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25
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26 import tango.util.log.Log : Log, Logger;
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27 import tango.stdc.stringz;
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28
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29 import derelict.sdl.sdl;
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30 import derelict.opengl.gl;
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31 import derelict.util.exception;
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32
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33 private Logger logger;
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34 static this() {
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35 logger = Log.getLogger ("mde.SDL");
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36
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37 init.addFunc (&initSdlAndGl);
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38 }
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39
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40 private uint flags = 0;
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41
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42 void initSdlAndGl() { // init func
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43 // Load SDL and GL dynamic libs
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44 try {
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45 DerelictSDL.load();
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46 DerelictGL.load();
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47 } catch (DerelictException de) {
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48 logger.fatal ("Loading dynamic library failed:");
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49 logger.fatal (de.msg);
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50
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51 setInitFailure ();
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52 return;
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53 }
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54 debug logger.trace ("Derelict: loaded SDL and OpenGL");
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55
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56 // Initialise SDL
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57 if (SDL_Init (SDL_INIT_VIDEO | SDL_INIT_JOYSTICK /+| SDL_INIT_EVENTTHREAD+/)) {
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58 logger.fatal ("SDL initialisation failed:");
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59 char* msg = SDL_GetError ();
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60 logger.fatal (msg ? fromStringz(msg) : "no reason available");
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61
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62 setInitFailure ();
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63 return;
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64 }
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65
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66 debug logger.trace ("SDL initialised");
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67
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68 // Must be called after SDL has been initialised, so cannot be a separate Init function.
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69 openJoysticks (); // after SDL init
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70 cleanup.addFunc (&cleanupSDL);
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71
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72 setupWindow();
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73 }
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74
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75 void setupWindow() { // indirect init func (depends on initSdlAndGl)
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76 // Window creation flags and size
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77 flags = SDL_OPENGL;
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78 if (vidOpts.hardware) flags |= SDL_HWSURFACE | SDL_DOUBLEBUF;
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79 else flags |= SDL_SWSURFACE;
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80 int w, h;
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81 if (vidOpts.fullscreen) {
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82 flags |= SDL_FULLSCREEN;
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83 w = vidOpts.screenW;
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84 h = vidOpts.screenH;
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85 }
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86 else {
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87 if (vidOpts.resizable) flags |= SDL_RESIZABLE;
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88 if (vidOpts.noFrame) flags |= SDL_NOFRAME;
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89 w = vidOpts.windowW;
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90 h = vidOpts.windowH;
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91 }
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92
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93 // OpenGL attributes
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94 SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
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95 SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
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96 SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
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97 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
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98 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1);
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99
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100 // Open a window
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101 if (SDL_SetVideoMode (w, h, 32, flags) is null) {
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102 logger.fatal ("Unable to set video mode:");
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103 char* msg = SDL_GetError ();
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104 logger.fatal (msg ? fromStringz(msg) : "no reason available");
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105
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106 setInitFailure ();
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107 return;
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108 }
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109
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110 // Now (must be done after GL context is created) try to load later version:
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111 /+ No later GL features are currently used.
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112 try {
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113 DerelictGL.loadVersions(GLVersion.Version21);
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114 } catch (DerelictException de) {
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115 logger.fatal ("Loading OpenGL version > 1.1 failed:");
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116 logger.fatal (de.msg);
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117
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118 setInitFailure ();
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119 return;
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120 }
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121 +/
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122
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123 // OpenGL stuff:
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124 glSetup();
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125
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126 // Projection (mde.gl)
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127 setProjection (w, h);
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128
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129 // Window-manager settings
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130 SDL_WM_SetCaption (toStringz ("mde"), null);
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131 // SDL_WM_GrabInput (use later)
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132 }
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133
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134 void resizeWindow (int w, int h) {
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135 if (vidOpts.fullscreen) {
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136 Options.setInt ("video", "screenW", w);
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137 Options.setInt ("video", "screenH", h);
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138 } else {
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139 Options.setInt ("video", "windowW", w);
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140 Options.setInt ("video", "windowH", h);
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141 }
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142
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143 if (SDL_SetVideoMode (w, h, 32, flags) is null) {
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144 logger.fatal ("Unable to reset video mode:");
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145 char* msg = SDL_GetError ();
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146 logger.fatal (msg ? fromStringz(msg) : "no reason available");
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147
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148 global.run = false;
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149 }
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150
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151 // Reset the projection and viewport
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152 setProjection (w, h);
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153 }
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154
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155 void cleanupSDL () { // cleanup func
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156 closeJoysticks();
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157 SDL_Quit();
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158 }
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159
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160 /+ Load of info-printing stuff (currently doesn't have a use)
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161 // Print a load of info:
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162 logger.info ("Available video modes:");
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163 char[128] tmp;
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164 SDL_Rect** modes = SDL_ListModes (null, SDL_FULLSCREEN);
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165 if (modes is null) logger.info ("None!");
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166 else if (modes is cast(SDL_Rect**) -1) logger.info ("All modes are available");
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167 else {
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168 for (uint i = 0; modes[i] !is null; ++i) {
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169 logger.info (logger.format (tmp, "\t{}x{}", modes[i].w, modes[i].h));
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170 }
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171 }
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172
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173 SDL_VideoInfo* vi = SDL_GetVideoInfo ();
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174 if (vi !is null) {
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175 logger.info ("Video info:");
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176 logger.info ("Hardware surface support: "~ (vi.flags & SDL_HWSURFACE ? "yes" : "no"));
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177 logger.info (logger.format (tmp, "Video memory: {}", vi.video_mem));
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178
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179 if (vi.vfmt !is null) {
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180 logger.info ("Best video mode:");
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181 logger.info (logger.format (tmp, "Bits per pixel: {}", vi.vfmt.BitsPerPixel));
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182 }
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183 }
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184 +/
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185
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186
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187 /** All video options. */
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188 OptionsVideo vidOpts;
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189 class OptionsVideo : Options {
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190 alias store!("fullscreen","hardware","resizable","noFrame") BOOL;
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191 alias store!("screenW","screenH","windowW","windowH") INT;
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192 //alias store!() CHARA;
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193
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194 mixin (decBool!(BOOL.a));
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195 mixin (decInt!(INT.a));
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196 //mixin (decCharA!(CHARA.a));
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197
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198 this () {
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199 mixin (aaBool!(BOOL.a));
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200 mixin (aaInt!(INT.a));
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201 //mixin (aaCharA!(CHARA.a));
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202 }
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203
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204 static this() {
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205 vidOpts = new OptionsVideo;
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206 Options.addOptionsClass (vidOpts, "video");
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207 }
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208 }