Mercurial > projects > mde
annotate mde/setup/Screen.d @ 137:9f035cd139c6
BIG commit. Major change: old Options class is gone, all content values are loaded and saved automatically. All options updated to reflect this, some changed.
Content restrutured a lot:
New IContent module, Content module includes more functionality.
New ContentLoader module to manage content loading/saving/translation.
Translation module moved to content dir and cut down to reflect current usage.
File format unchanged except renames: FontOptions -> Font, VideoOptions -> Screen.
Font render mode and LCD filter options are now enums.
GUI loading needs to create content (and set type for enums), but doesn't save/load value.
Some setup of mainSchedule moved to mde.mainLoop.
Content callbacks are called on content change now.
ContentLists are set up implicitly from content symbols. Not as fast but much easier!
Bug-fix in the new MTTagReader.
Renamed MT *Reader maker functions to avoid confusion in paths.d.
New mde.setup.logger module to allow logger setup before any other module's static this().
author | Diggory Hardy <diggory.hardy@gmail.com> |
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date | Sat, 07 Feb 2009 12:46:03 +0000 |
parents | 5ee69b3ed9c9 |
children |
rev | line source |
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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 /** Screen: SDL & OpenGL setup/cleanup, drawing. |
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17 * |
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18 * Has an interface by which other code can hook in for drawing and resize notifications. */ |
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19 module mde.setup.Screen; |
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20 |
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21 import mde.setup.exception; |
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22 import mde.content.AStringContent; |
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23 import imde = mde.imde; |
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24 debug (drawGlyphCache) import mde.font.font; |
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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 import tango.time.Time; // TimeSpan (type only; unused) |
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29 |
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30 import derelict.sdl.sdl; |
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31 import derelict.opengl.gl; |
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32 import derelict.util.exception; |
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33 |
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34 /** Currently just used as a namespace. Potential for multiple screen support later? */ |
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35 struct Screen { |
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36 // TYPES (these mustn't be static): |
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37 /** Interface for anything hooking into the screen for drawing, etc. */ |
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38 interface IDrawable { |
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39 /** Called on window creation and whenever the window manager resizes the window, before |
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40 * the new size is set. The new size is passed. |
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41 * |
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42 * The parameters were passed as ref to allow the called function to change them, but SDL |
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43 * didn't appear able to resize the window (on X11), so this was dropped. */ |
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44 void sizeEvent (int w, int h); |
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45 |
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46 /** Called you guess when :-) */ |
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47 void draw (); |
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48 } |
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49 |
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50 static: |
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51 /** Init function to initialize SDL. */ |
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52 StageState init () { // init func |
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53 // Initialise SDL |
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54 debug (SDLCalls) logger.trace ("Calling SDL_Init (SDL_INIT_VIDEO | SDL_INIT_JOYSTICK)"); |
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55 if (SDL_Init (SDL_INIT_VIDEO | SDL_INIT_JOYSTICK /+| SDL_INIT_EVENTTHREAD+/)) { |
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56 logger.fatal ("SDL initialisation failed:"); |
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57 char* msg = SDL_GetError (); |
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58 logger.fatal (msg ? fromStringz(msg) : "no reason available"); |
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59 |
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60 throw new InitException ("SDL Initialization failed"); |
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61 } |
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62 return StageState.ACTIVE; |
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63 } |
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64 /** SDL shutdown */ |
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65 StageState cleanup () { |
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66 debug (SDLCalls) logger.trace ("Calling SDL_Quit ()"); |
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67 SDL_Quit(); |
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68 return StageState.INACTIVE; |
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69 } |
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70 /** Init function to set up a window with OpenGL support. */ |
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71 StageState initWindow () { |
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72 //BEGIN Create window and initialize OpenGL |
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73 // Window creation flags and size |
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74 flags = SDL_OPENGL; |
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75 if (hardware()) flags |= SDL_HWSURFACE | SDL_DOUBLEBUF; |
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76 else flags |= SDL_SWSURFACE; |
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77 int w, h; |
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78 if (fullscreen()) { |
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79 flags |= SDL_FULLSCREEN; |
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80 w = screenW(); |
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81 h = screenH(); |
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82 } |
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83 else { |
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84 if (resizable()) flags |= SDL_RESIZABLE; |
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85 if (noFrame()) flags |= SDL_NOFRAME; |
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86 w = windowW(); |
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87 h = windowH(); |
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88 } |
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89 |
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90 // OpenGL attributes |
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91 SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5); |
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92 SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 6); |
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93 SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5); |
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94 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16); |
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95 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1); |
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96 |
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97 // Open a window |
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98 if (setWindow (w, h)) { |
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99 throw new InitException ("Failed to open a window"); |
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100 } |
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101 |
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102 /* Now (must be done after GL context is created) we can try to load later version. |
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103 * The initial loading provides opengl 1.1 features. |
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104 * |
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105 * 1.4 is now used for glBlendColor (coloured text). |
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106 * |
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107 * Currently the latest version used is 1.3; adjust this as necessary. However, before using |
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108 * features from any OpenGL version > 1.1 a check must be made on what was loaded by calling |
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109 * DerelictGL.availableVersion(). Note that availableVersion() could be used instead to load |
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110 * the highest supported version but this way we know what we're getting. */ |
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111 if (DerelictGL.availableVersion < GLVersion.Version13) { |
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112 throw new InitException ("Required at least OpenGL 1.3; didn't get this."); |
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113 } |
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114 /+try { |
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115 DerelictGL.loadVersions(GLVersion.Version14); |
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116 } catch (SharedLibProcLoadException e) { |
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117 logger.warn ("Loading OpenGL version 1.4 failed:"); |
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118 logger.warn (e.msg); |
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119 |
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120 setInitFailure (); |
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121 return; |
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122 }+/ |
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123 |
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124 // OpenGL stuff: |
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125 glDisable(GL_LIGHTING); |
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126 glDisable(GL_DEPTH_TEST); |
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127 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); |
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128 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); |
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129 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
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130 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
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131 glShadeModel(GL_SMOOTH); |
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132 |
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133 glClearColor (0.0f, 0.0f, 0.0f, 0.0f); |
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134 |
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135 glMatrixMode(GL_MODELVIEW); |
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136 glLoadIdentity(); |
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137 |
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138 // Used for font rendering: |
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139 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
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140 glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
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141 //NOTE: wrap mode may have an effect, but shouldn't be noticed... |
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142 |
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143 // Window-manager settings |
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144 SDL_WM_SetCaption (toStringz ("mde"), null); |
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145 // SDL_WM_GrabInput (use later) |
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146 //END Create window and initialize OpenGL |
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147 return StageState.ACTIVE; |
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148 } |
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149 |
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150 |
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151 /** Called when a resize event occurs (when the window manager resizes the window). */ |
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152 void resizeEvent (int w, int h) { |
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153 // Save new size to config |
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154 if (fullscreen()) { // probably resizeEvent only called when not fullscreen |
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155 screenW = w; |
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156 screenH = h; |
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157 } else { |
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158 windowW = w; |
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159 windowH = h; |
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160 } |
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161 |
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162 if (setWindow (w,h)) |
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163 imde.run = false; |
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164 } |
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165 |
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166 /** Add a drawable element to the screen (see IDrawable interface). |
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167 * |
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168 * Should be called before Init to get the initial size (sizeEvent is only called when the size |
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169 * is set). Currently no means to remove drawables, and not really designed for more than one. |
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170 */ |
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171 void addDrawable (IDrawable d) { |
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172 drawables ~= d; |
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173 } |
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174 |
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175 /** Drawing function */ |
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176 void draw (TimeSpan) { |
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177 glClear(GL_COLOR_BUFFER_BIT); |
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178 |
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179 foreach (d; drawables) { |
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180 try { |
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181 d.draw; |
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182 } catch (Exception e) { |
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183 logger.error ("Drawable failed to draw: "~e.msg); |
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184 } |
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185 } |
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186 |
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187 debug (drawGlyphCache) FontStyle.drawTexture; |
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188 |
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189 // Error check: |
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190 GLenum err = glGetError(); |
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191 while (err != GL_NO_ERROR) { |
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192 logger.error ("GL error: {}", err); |
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193 err = glGetError(); |
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194 } |
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195 |
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196 glFinish(); // Use Finish rather than Flush to make sure gl is ready to swap buffers |
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197 SDL_GL_SwapBuffers(); |
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198 } |
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199 |
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200 /** Set a new window size. Returns true on failure due to the different ways this must be |
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201 * handled. */ |
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202 private bool setWindow (int w, int h) { |
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203 foreach (d; drawables) { // Tell all drawables the new window size. |
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204 try { |
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205 d.sizeEvent (w,h); |
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206 } catch (Exception e) { |
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207 logger.error ("Drawable failed while setting size: "~e.msg); |
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208 } |
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209 } |
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210 |
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211 //debug logger.trace ("Setting video mode {}x{}, 32-bit, flags: {}", w,h,flags); |
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212 debug (SDLCalls) logger.trace ("Calling SDL_SetVideoMode ({}, {}, 32, 0x{:x})", w,h, flags); |
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213 if (SDL_SetVideoMode (w, h, 32, flags) is null) { |
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214 logger.fatal ("Unable to set video mode:"); |
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215 char* msg = SDL_GetError (); |
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216 logger.fatal (msg ? fromStringz(msg) : "no reason available"); |
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217 |
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218 // Print a load of info: |
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219 logger.info ("Available video modes:"); |
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220 SDL_Rect** modes = SDL_ListModes (null, SDL_FULLSCREEN); |
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221 if (modes is null) logger.info ("None!"); |
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222 else if (modes is cast(SDL_Rect**) -1) logger.info ("All modes are available"); |
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223 else { |
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224 for (uint i = 0; modes[i] !is null; ++i) { |
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225 logger.info ("\t{}x{}", modes[i].w, modes[i].h); |
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226 } |
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227 } |
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228 |
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229 SDL_VideoInfo* vi = SDL_GetVideoInfo (); |
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230 if (vi !is null) { |
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231 logger.info ("Video info:"); |
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232 logger.info ("Hardware surface support: "~ (vi.flags & SDL_HWSURFACE ? "yes" : "no")); |
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233 logger.info ("Video memory: {}", vi.video_mem); |
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234 |
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235 if (vi.vfmt !is null) { |
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236 logger.info ("Best video mode:"); |
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237 logger.info ("Bits per pixel: {}", vi.vfmt.BitsPerPixel); |
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238 } |
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239 } |
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240 |
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241 return true; |
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242 } |
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243 |
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244 // Reset the projection and viewport |
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245 glMatrixMode (GL_PROJECTION); |
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246 glLoadIdentity (); |
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247 |
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248 glViewport (0,0,w,h); |
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249 |
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250 // Make the top-left the origin (see gui/GUI notes.txt): |
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251 // Note that this only affects vertex operations − direct rasterisation operations are |
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252 // unaffected! |
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253 glOrtho (0.0,w, h,0.0, -1.0, 1.0); |
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254 |
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255 glMatrixMode(GL_MODELVIEW); |
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256 return false; |
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257 } |
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258 |
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259 static this() { |
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260 logger = Log.getLogger ("mde.setup.Screen"); |
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261 |
137
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262 fullscreen = new BoolContent ("Screen.fullscreen"); |
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263 hardware = new BoolContent ("Screen.hardware"); |
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264 resizable = new BoolContent ("Screen.resizable"); |
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265 noFrame = new BoolContent ("Screen.noFrame"); |
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266 screenW = new IntContent ("Screen.screenW"); |
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267 screenH = new IntContent ("Screen.screenH"); |
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268 windowW = new IntContent ("Screen.windowW"); |
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269 windowH = new IntContent ("Screen.windowH"); |
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270 } |
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271 |
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272 // DATA: |
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273 private: |
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274 uint flags = 0; |
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275 IDrawable[] drawables; |
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276 Logger logger; |
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277 |
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278 // Option values: |
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279 BoolContent fullscreen, hardware, resizable, noFrame; |
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280 IntContent screenW,screenH, windowW,windowH; |
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281 } |