1 | /*
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2 | -----------------------------------------------------------------------------
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3 | This source file is part of OGRE
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4 | (Object-oriented Graphics Rendering Engine)
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5 | For the latest info, see http://www.ogre3d.org/
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6 |
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7 | Copyright (c) 2000-2005 The OGRE Team
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8 | Also see acknowledgements in Readme.html
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9 |
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10 | This program is free software; you can redistribute it and/or modify it under
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11 | the terms of the GNU Lesser General Public License as published by the Free Software
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12 | Foundation; either version 2 of the License, or (at your option) any later
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13 | version.
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14 |
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15 | This program is distributed in the hope that it will be useful, but WITHOUT
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16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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18 |
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19 | You should have received a copy of the GNU Lesser General Public License along with
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20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to
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22 | http://www.gnu.org/copyleft/lesser.txt.
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23 | -----------------------------------------------------------------------------
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24 | */
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25 |
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26 | #include "OgreWin32Window.h"
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27 | #include "OgreRoot.h"
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28 | #include "OgreLogManager.h"
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29 | #include "OgreRenderSystem.h"
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30 | #include "OgreImageCodec.h"
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31 | #include "OgreStringConverter.h"
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32 | #include "OgreException.h"
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33 | #include "OgreWin32GLSupport.h"
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34 | #include "OgreWin32Context.h"
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35 |
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36 | namespace Ogre {
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37 |
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38 | Win32Window::Win32Window(Win32GLSupport &glsupport):
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39 | mGLSupport(glsupport),
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40 | mContext(0)
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41 | {
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42 | mIsFullScreen = false;
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43 | mHWnd = 0;
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44 | mIsExternal = false;
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45 | mSizing = false;
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46 | mClosed = false;
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47 | mDisplayFrequency = 0;
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48 | mActive = false;
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49 | }
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50 |
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51 | Win32Window::~Win32Window()
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52 | {
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53 | destroy();
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54 | }
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55 |
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56 | void Win32Window::create(const String& name, unsigned int width, unsigned int height,
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57 | bool fullScreen, const NameValuePairList *miscParams)
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58 | {
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59 | // destroy current window, if any
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60 | if (mHWnd)
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61 | destroy();
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62 |
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63 | HINSTANCE hInst = GetModuleHandle("RenderSystem_GL.dll");
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64 |
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65 | mHWnd = 0;
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66 | mName = name;
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67 | mIsFullScreen = fullScreen;
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68 | mClosed = false;
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69 |
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70 | // load window defaults
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71 | mLeft = mTop = -1; // centered
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72 | mWidth = width;
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73 | mHeight = height;
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74 | mDisplayFrequency = 0;
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75 | mIsDepthBuffered = true;
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76 | mColourDepth = mIsFullScreen? 32 : GetDeviceCaps(GetDC(0), BITSPIXEL);
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77 |
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78 | HWND parent = 0;
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79 | String title = name;
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80 | bool vsync = false;
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81 | int fsaa = 0;
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82 | String border = "";
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83 | bool outerSize = false;
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84 |
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85 | if(miscParams)
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86 | {
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87 | // Get variable-length params
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88 | NameValuePairList::const_iterator opt;
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89 | NameValuePairList::const_iterator end = miscParams->end();
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90 |
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91 | if ((opt = miscParams->find("title")) != end)
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92 | title = opt->second;
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93 |
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94 | if ((opt = miscParams->find("left")) != end)
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95 | mLeft = StringConverter::parseInt(opt->second);
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96 |
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97 | if ((opt = miscParams->find("top")) != end)
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98 | mTop = StringConverter::parseInt(opt->second);
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99 |
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100 | if ((opt = miscParams->find("depthBuffer")) != end)
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101 | mIsDepthBuffered = StringConverter::parseBool(opt->second);
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102 |
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103 | if ((opt = miscParams->find("vsync")) != end)
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104 | vsync = StringConverter::parseBool(opt->second);
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105 |
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106 | if ((opt = miscParams->find("FSAA")) != end)
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107 | fsaa = StringConverter::parseUnsignedInt(opt->second);
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108 |
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109 | if ((opt = miscParams->find("externalWindowHandle")) != end)
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110 | {
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111 | mHWnd = (HWND)StringConverter::parseUnsignedInt(opt->second);
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112 | if (mHWnd)
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113 | {
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114 | mIsExternal = true;
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115 | mIsFullScreen = false;
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116 | }
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117 | }
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118 | // window border style
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119 | opt = miscParams->find("border");
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120 | if(opt != miscParams->end())
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121 | border = opt->second;
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122 | // set outer dimensions?
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123 | opt = miscParams->find("outerDimensions");
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124 | if(opt != miscParams->end())
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125 | outerSize = StringConverter::parseBool(opt->second);
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126 |
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127 | if (mIsFullScreen)
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128 | {
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129 | // only available with fullscreen
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130 | if ((opt = miscParams->find("displayFrequency")) != end)
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131 | mDisplayFrequency = StringConverter::parseUnsignedInt(opt->second);
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132 | if ((opt = miscParams->find("colourDepth")) != end)
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133 | mColourDepth = StringConverter::parseUnsignedInt(opt->second);
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134 | }
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135 | else
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136 | {
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137 | // incompatible with fullscreen
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138 | if ((opt = miscParams->find("parentWindowHandle")) != end)
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139 | parent = (HWND)StringConverter::parseUnsignedInt(opt->second);
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140 | }
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141 | }
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142 |
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143 | if (!mIsExternal)
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144 | {
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145 | DWORD dwStyle = WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
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146 | DWORD dwStyleEx = 0;
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147 | int outerw, outerh;
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148 |
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149 | if (mIsFullScreen)
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150 | {
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151 | dwStyle |= WS_POPUP;
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152 | dwStyleEx |= WS_EX_TOPMOST;
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153 | outerw = mWidth;
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154 | outerh = mHeight;
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155 | mLeft = mTop = 0;
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156 | }
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157 | else
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158 | {
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159 | if (border == "none")
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160 | dwStyle |= WS_POPUP;
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161 | else if (border == "fixed")
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162 | dwStyle |= WS_OVERLAPPED | WS_BORDER | WS_CAPTION |
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163 | WS_SYSMENU | WS_MINIMIZEBOX;
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164 | else
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165 | dwStyle |= WS_OVERLAPPEDWINDOW;
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166 |
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167 | int screenw = GetSystemMetrics(SM_CXSCREEN);
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168 | int screenh = GetSystemMetrics(SM_CYSCREEN);
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169 |
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170 | if (!outerSize)
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171 | {
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172 | // calculate overall dimensions for requested client area
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173 | RECT rc = { 0, 0, mWidth, mHeight };
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174 | AdjustWindowRect(&rc, dwStyle, false);
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175 |
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176 | // clamp window dimensions to screen size
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177 | outerw = (rc.right-rc.left < screenw)? rc.right-rc.left : screenw;
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178 | outerh = (rc.bottom-rc.top < screenh)? rc.bottom-rc.top : screenh;
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179 | }
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180 |
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181 | // center window if given negative coordinates
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182 | if (mLeft < 0)
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183 | mLeft = (screenw - outerw) / 2;
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184 | if (mTop < 0)
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185 | mTop = (screenh - outerh) / 2;
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186 |
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187 | // keep window contained in visible screen area
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188 | if (mLeft > screenw - outerw)
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189 | mLeft = screenw - outerw;
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190 | if (mTop > screenh - outerh)
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191 | mTop = screenh - outerh;
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192 | }
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193 |
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194 | // register class and create window
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195 | WNDCLASS wc = { CS_OWNDC, WndProc, 0, 0, hInst,
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196 | LoadIcon(NULL, IDI_APPLICATION), LoadCursor(NULL, IDC_ARROW),
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197 | (HBRUSH)GetStockObject(BLACK_BRUSH), NULL, "OgreGLWindow" };
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198 | RegisterClass(&wc);
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199 |
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200 | // Pass pointer to self as WM_CREATE parameter
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201 | mHWnd = CreateWindowEx(dwStyleEx, "OgreGLWindow", title.c_str(),
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202 | dwStyle, mLeft, mTop, outerw, outerh, parent, 0, hInst, this);
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203 |
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204 | StringUtil::StrStreamType str;
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205 | str << "Created Win32Window '"
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206 | << mName << "' : " << mWidth << "x" << mHeight
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207 | << ", " << mColourDepth << "bpp";
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208 | LogManager::getSingleton().logMessage(LML_NORMAL, str.str());
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209 |
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210 | if (mIsFullScreen)
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211 | {
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212 | DEVMODE dm;
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213 | dm.dmSize = sizeof(DEVMODE);
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214 | dm.dmBitsPerPel = mColourDepth;
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215 | dm.dmPelsWidth = mWidth;
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216 | dm.dmPelsHeight = mHeight;
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217 | dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
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218 | if (mDisplayFrequency)
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219 | {
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220 | dm.dmDisplayFrequency = mDisplayFrequency;
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221 | dm.dmFields |= DM_DISPLAYFREQUENCY;
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222 | }
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223 | if (ChangeDisplaySettings(&dm, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
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224 | LogManager::getSingleton().logMessage(LML_CRITICAL, "ChangeDisplaySettings failed");
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225 | }
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226 | }
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227 |
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228 | HDC old_hdc = wglGetCurrentDC();
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229 | HGLRC old_context = wglGetCurrentContext();
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230 |
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231 | RECT rc;
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232 | // top and left represent outer window position
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233 | GetWindowRect(mHWnd, &rc);
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234 | mTop = rc.top;
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235 | mLeft = rc.left;
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236 | // width and height represent drawable area only
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237 | GetClientRect(mHWnd, &rc);
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238 | mWidth = rc.right;
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239 | mHeight = rc.bottom;
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240 |
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241 | mHDC = GetDC(mHWnd);
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242 |
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243 | if (!mGLSupport.selectPixelFormat(mHDC, mColourDepth, fsaa))
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244 | {
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245 | if (fsaa == 0)
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246 | OGRE_EXCEPT(0, "selectPixelFormat failed", "Win32Window::create");
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247 |
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248 | LogManager::getSingleton().logMessage(LML_NORMAL, "FSAA level not supported, falling back");
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249 | if (!mGLSupport.selectPixelFormat(mHDC, mColourDepth, 0))
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250 | OGRE_EXCEPT(0, "selectPixelFormat failed", "Win32Window::create");
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251 | }
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252 |
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253 | mGlrc = wglCreateContext(mHDC);
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254 | if (!mGlrc)
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255 | OGRE_EXCEPT(0, "wglCreateContext", "Win32Window::create");
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256 | if (!wglMakeCurrent(mHDC, mGlrc))
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257 | OGRE_EXCEPT(0, "wglMakeCurrent", "Win32Window::create");
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258 |
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259 | wglSwapIntervalEXT(vsync? 1 : 0);
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260 |
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261 | if (old_context)
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262 | {
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263 | // Restore old context
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264 | if (!wglMakeCurrent(old_hdc, old_context))
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265 | OGRE_EXCEPT(0, "wglMakeCurrent() failed", "Win32Window::create");
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266 |
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267 | // Share lists with old context
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268 | if (!wglShareLists(old_context, mGlrc))
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269 | OGRE_EXCEPT(0, "wglShareLists() failed", " Win32Window::create");
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270 | }
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271 |
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272 | // Create RenderSystem context
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273 | mContext = new Win32Context(mHDC, mGlrc);
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274 | // Register the context with the rendersystem and associate it with this window
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275 | GLRenderSystem *rs = static_cast<GLRenderSystem*>(Root::getSingleton().getRenderSystem());
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276 | rs->_registerContext(this, mContext);
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277 |
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278 | mActive = true;
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279 | }
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280 |
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281 | void Win32Window::destroy(void)
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282 | {
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283 | if (!mHWnd)
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284 | return;
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285 |
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286 | // Unregister and destroy OGRE GLContext
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287 | if (mContext)
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288 | {
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289 | GLRenderSystem *rs = static_cast<GLRenderSystem*>(Root::getSingleton().getRenderSystem());
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290 | rs->_unregisterContext(this);
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291 | delete mContext;
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292 | mContext = 0;
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293 | }
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294 | if (mGlrc)
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295 | {
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296 | wglDeleteContext(mGlrc);
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297 | mGlrc = 0;
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298 | }
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299 | if (!mIsExternal)
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300 | {
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301 | if (mIsFullScreen)
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302 | ChangeDisplaySettings(NULL, 0);
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303 | DestroyWindow(mHWnd);
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304 | }
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305 | mActive = false;
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306 | mHDC = 0; // no release thanks to CS_OWNDC wndclass style
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307 | mHWnd = 0;
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308 | }
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309 |
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310 | bool Win32Window::isVisible() const
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311 | {
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312 | return (mHWnd && !IsIconic(mHWnd));
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313 | }
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314 |
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315 | bool Win32Window::isClosed() const
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316 | {
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317 | return mClosed;
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318 | }
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319 |
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320 | void Win32Window::reposition(int left, int top)
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321 | {
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322 | if (mHWnd && !mIsFullScreen)
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323 | {
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324 | SetWindowPos(mHWnd, 0, left, top, 0, 0,
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325 | SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
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326 | }
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327 | }
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328 |
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329 | void Win32Window::resize(unsigned int width, unsigned int height)
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330 | {
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331 | if (mHWnd && !mIsFullScreen)
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332 | {
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333 | RECT rc = { 0, 0, width, height };
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334 | AdjustWindowRect(&rc, GetWindowLong(mHWnd, GWL_STYLE), false);
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335 | width = rc.right - rc.left;
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336 | height = rc.bottom - rc.top;
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337 | SetWindowPos(mHWnd, 0, 0, 0, width, height,
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338 | SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE);
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339 | }
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340 | }
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341 |
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342 | void Win32Window::windowMovedOrResized()
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343 | {
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344 | if (!isVisible())
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345 | return;
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346 |
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347 | RECT rc;
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348 | // top and left represent outer window position
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349 | GetWindowRect(mHWnd, &rc);
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350 | mTop = rc.top;
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351 | mLeft = rc.left;
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352 | // width and height represent drawable area only
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353 | GetClientRect(mHWnd, &rc);
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354 |
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355 | if (mWidth == rc.right && mHeight == rc.bottom)
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356 | return;
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357 |
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358 | mWidth = rc.right;
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359 | mHeight = rc.bottom;
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360 |
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361 | // Notify viewports of resize
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362 | ViewportList::iterator it, itend;
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363 | itend = mViewportList.end();
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364 | for( it = mViewportList.begin(); it != itend; ++it )
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365 | (*it).second->_updateDimensions();
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366 | }
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367 |
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368 | void Win32Window::swapBuffers(bool waitForVSync)
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369 | {
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370 | SwapBuffers(mHDC);
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371 | }
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372 |
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373 | void Win32Window::writeContentsToFile(const String& filename)
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374 | {
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375 | ImageCodec::ImageData *imgData = new ImageCodec::ImageData();
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376 | imgData->width = mWidth;
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377 | imgData->height = mHeight;
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378 | imgData->depth = 1;
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379 | imgData->format = PF_BYTE_RGB;
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380 |
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381 | // Allocate buffer
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382 | uchar* pBuffer = new uchar[mWidth * mHeight * 3];
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383 |
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384 | // Read pixels
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385 | // I love GL: it does all the locking & colour conversion for us
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386 | glReadPixels(0,0, mWidth-1, mHeight-1, GL_RGB, GL_UNSIGNED_BYTE, pBuffer);
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387 |
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388 | // Wrap buffer in a memory stream
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389 | DataStreamPtr stream(new MemoryDataStream(pBuffer, mWidth * mHeight * 3, false));
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390 |
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391 | // Need to flip the read data over in Y though
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392 | Image img;
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393 | img.loadRawData(stream, mWidth, mHeight, imgData->format );
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394 | img.flipAroundX();
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395 |
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396 | MemoryDataStreamPtr streamFlipped(new MemoryDataStream(img.getData(), stream->size(), false));
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397 |
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398 | // Get codec
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399 | size_t pos = filename.find_last_of(".");
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400 | String extension;
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401 | if( pos == String::npos )
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402 | OGRE_EXCEPT(
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403 | Exception::ERR_INVALIDPARAMS,
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404 | "Unable to determine image type for '" + filename + "' - invalid extension.",
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405 | "Win32Window::writeContentsToFile" );
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406 |
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407 | while( pos != filename.length() - 1 )
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408 | extension += filename[++pos];
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409 |
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410 | // Get the codec
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411 | Codec * pCodec = Codec::getCodec(extension);
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412 |
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413 | // Write out
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414 | Codec::CodecDataPtr ptr(imgData);
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415 | pCodec->codeToFile(streamFlipped, filename, ptr);
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416 |
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417 | delete [] pBuffer;
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418 | }
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419 |
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420 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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421 | uchar *Win32Window::getBufferContents(int &dimx, int &dimy)
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422 | {
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423 | dimx = mWidth;
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424 | dimy = mHeight;
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425 |
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426 | // Allocate buffer
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427 | uchar* pBuffer = new uchar[mWidth * mHeight * 3];
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428 |
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429 | // Read pixels
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430 | // I love GL: it does all the locking & colour conversion for us
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431 | glReadPixels(0, 0, mWidth-1, mHeight-1, GL_RGB, GL_UNSIGNED_BYTE, pBuffer);
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432 |
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433 | return pBuffer;
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434 | }
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435 | #endif // GTP_VISIBILITY_MODIFIED_OGRE
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436 |
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437 | // Window procedure callback
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438 | // This is a static member, so applies to all windows but we store the
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439 | // Win32Window instance in the window data GetWindowLog/SetWindowLog
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440 | LRESULT Win32Window::WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
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441 | {
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442 |
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443 | if (uMsg == WM_CREATE)
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444 | {
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445 | // Store pointer to Win32Window in user data area
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446 | SetWindowLong(hWnd, GWL_USERDATA,
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447 | (LONG)(((LPCREATESTRUCT)lParam)->lpCreateParams));
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448 | return 0;
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449 | }
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450 |
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451 | // look up window instance
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452 | // note: it is possible to get a WM_SIZE before WM_CREATE
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453 | Win32Window* win = (Win32Window*)GetWindowLong(hWnd, GWL_USERDATA);
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454 | if (!win)
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455 | return DefWindowProc(hWnd, uMsg, wParam, lParam);
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456 |
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457 | switch( uMsg )
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458 | {
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459 | case WM_ACTIVATE:
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---|
460 | if (win->mIsFullScreen)
|
---|
461 | {
|
---|
462 | if (LOWORD(wParam) == WA_INACTIVE)
|
---|
463 | {
|
---|
464 | win->mActive = false;
|
---|
465 | ChangeDisplaySettings(NULL, 0);
|
---|
466 | ShowWindow(hWnd, SW_SHOWMINNOACTIVE);
|
---|
467 | }
|
---|
468 | else
|
---|
469 | {
|
---|
470 | win->mActive = true;
|
---|
471 | ShowWindow(hWnd, SW_SHOWNORMAL);
|
---|
472 |
|
---|
473 | DEVMODE dm;
|
---|
474 | dm.dmSize = sizeof(DEVMODE);
|
---|
475 | dm.dmBitsPerPel = win->mColourDepth;
|
---|
476 | dm.dmPelsWidth = win->mWidth;
|
---|
477 | dm.dmPelsHeight = win->mHeight;
|
---|
478 | dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
|
---|
479 | if (win->mDisplayFrequency)
|
---|
480 | {
|
---|
481 | dm.dmDisplayFrequency = win->mDisplayFrequency;
|
---|
482 | dm.dmFields |= DM_DISPLAYFREQUENCY;
|
---|
483 | }
|
---|
484 | ChangeDisplaySettings(&dm, CDS_FULLSCREEN);
|
---|
485 | }
|
---|
486 | }
|
---|
487 | break;
|
---|
488 |
|
---|
489 | case WM_ENTERSIZEMOVE:
|
---|
490 | win->mSizing = true;
|
---|
491 | break;
|
---|
492 |
|
---|
493 | case WM_EXITSIZEMOVE:
|
---|
494 | win->windowMovedOrResized();
|
---|
495 | win->mSizing = false;
|
---|
496 | break;
|
---|
497 |
|
---|
498 | case WM_MOVE:
|
---|
499 | case WM_SIZE:
|
---|
500 | if (!win->mSizing)
|
---|
501 | win->windowMovedOrResized();
|
---|
502 | break;
|
---|
503 |
|
---|
504 | case WM_GETMINMAXINFO:
|
---|
505 | // Prevent the window from going smaller than some minimu size
|
---|
506 | ((MINMAXINFO*)lParam)->ptMinTrackSize.x = 100;
|
---|
507 | ((MINMAXINFO*)lParam)->ptMinTrackSize.y = 100;
|
---|
508 | break;
|
---|
509 |
|
---|
510 | case WM_CLOSE:
|
---|
511 | win->destroy(); // will call DestroyWindow
|
---|
512 | win->mClosed = true;
|
---|
513 | return 0;
|
---|
514 | }
|
---|
515 |
|
---|
516 | return DefWindowProc( hWnd, uMsg, wParam, lParam );
|
---|
517 | }
|
---|
518 |
|
---|
519 | void Win32Window::getCustomAttribute( const String& name, void* pData )
|
---|
520 | {
|
---|
521 | if( name == "HWND" )
|
---|
522 | {
|
---|
523 | HWND *pHwnd = (HWND*)pData;
|
---|
524 | *pHwnd = getWindowHandle();
|
---|
525 | return;
|
---|
526 | }
|
---|
527 | }
|
---|
528 |
|
---|
529 | }
|
---|