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 | mActive = false;
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45 | mReady = false;
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46 | mClosed = false;
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47 | }
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48 |
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49 | Win32Window::~Win32Window()
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50 | {
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51 | destroy();
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52 | }
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53 |
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54 | void Win32Window::create(const String& name, unsigned int width, unsigned int height,
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55 | bool fullScreen, const NameValuePairList *miscParams)
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56 | {
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57 | HWND parentHWnd = 0;
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58 | HWND externalHandle = 0;
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59 | HINSTANCE hInst = GetModuleHandle("RenderSystem_GL.dll");
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60 | bool vsync = false;
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61 | unsigned int displayFrequency = 0;
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62 | String title = name;
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63 | unsigned int colourDepth = 32;
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64 | unsigned int left = 0; // Defaults to screen center
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65 | unsigned int top = 0; // Defaults to screen center
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66 | bool depthBuffer = true;
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67 | int multisample = 0;
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68 |
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69 | if(miscParams)
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70 | {
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71 | // Get variable-length params
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72 | NameValuePairList::const_iterator opt;
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73 | // left (x)
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74 | opt = miscParams->find("left");
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75 | if(opt != miscParams->end())
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76 | left = StringConverter::parseUnsignedInt(opt->second);
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77 | // top (y)
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78 | opt = miscParams->find("top");
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79 | if(opt != miscParams->end())
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80 | top = StringConverter::parseUnsignedInt(opt->second);
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81 | // Window title
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82 | opt = miscParams->find("title");
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83 | if(opt != miscParams->end())
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84 | title = opt->second;
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85 | // externalWindowHandle -> externalHandle
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86 | opt = miscParams->find("externalWindowHandle");
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87 | if(opt != miscParams->end())
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88 | externalHandle = (HWND)StringConverter::parseUnsignedInt(opt->second);
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89 | // parentWindowHandle -> parentHWnd
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90 | opt = miscParams->find("parentWindowHandle");
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91 | if(opt != miscParams->end())
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92 | parentHWnd = (HWND)StringConverter::parseUnsignedInt(opt->second);
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93 | // vsync [parseBool]
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94 | opt = miscParams->find("vsync");
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95 | if(opt != miscParams->end())
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96 | vsync = StringConverter::parseBool(opt->second);
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97 | // displayFrequency
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98 | opt = miscParams->find("displayFrequency");
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99 | if(opt != miscParams->end())
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100 | displayFrequency = StringConverter::parseUnsignedInt(opt->second);
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101 | // colourDepth
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102 | opt = miscParams->find("colourDepth");
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103 | if(opt != miscParams->end())
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104 | colourDepth = StringConverter::parseUnsignedInt(opt->second);
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105 | // depthBuffer [parseBool]
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106 | opt = miscParams->find("depthBuffer");
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107 | if(opt != miscParams->end())
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108 | depthBuffer = StringConverter::parseBool(opt->second);
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109 | // FSAA
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110 | opt = miscParams->find("FSAA");
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111 | if(opt != miscParams->end())
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112 | multisample = StringConverter::parseUnsignedInt(opt->second);
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113 | }
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114 |
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115 | // Destroy current window if any
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116 | if( mHWnd )
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117 | destroy();
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118 |
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119 | if (fullScreen)
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120 | {
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121 | mColourDepth = colourDepth;
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122 | }
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123 | else
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124 | {
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125 | // Get colour depth from display
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126 | mColourDepth = GetDeviceCaps(GetDC(0), BITSPIXEL);
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127 | }
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128 |
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129 | if (!externalHandle) {
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130 | DWORD dwStyle = (fullScreen ? WS_POPUP : WS_OVERLAPPEDWINDOW) | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
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131 | RECT rc;
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132 |
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133 | mWidth = width;
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134 | mHeight = height;
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135 |
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136 | if (!fullScreen)
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137 | {
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138 | // Calculate window dimensions required to get the requested client area
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139 | SetRect(&rc, 0, 0, mWidth, mHeight);
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140 | AdjustWindowRect(&rc, dwStyle, false);
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141 | mWidth = rc.right - rc.left;
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142 | mHeight = rc.bottom - rc.top;
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143 |
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144 | // Clamp width and height to the desktop dimensions
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145 | if (mWidth > (unsigned)GetSystemMetrics(SM_CXSCREEN))
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146 | mWidth = (unsigned)GetSystemMetrics(SM_CXSCREEN);
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147 | if (mHeight > (unsigned)GetSystemMetrics(SM_CYSCREEN))
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148 | mHeight = (unsigned)GetSystemMetrics(SM_CYSCREEN);
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149 |
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150 | if (!left)
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151 | {
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152 | mLeft = (GetSystemMetrics(SM_CXSCREEN) / 2) - (mWidth / 2);
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153 | }
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154 | else
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155 | {
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156 | mLeft = left;
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157 | }
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158 | if (!top)
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159 | {
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160 | mTop = (GetSystemMetrics(SM_CYSCREEN) / 2) - (mHeight / 2);
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161 | }
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162 | else
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163 | {
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164 | mTop = top;
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165 | }
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166 | }
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167 | else
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168 | {
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169 | mTop = mLeft = 0;
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170 | }
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171 |
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172 | // Register the window class
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173 |
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174 | WNDCLASS wndClass = { CS_HREDRAW | CS_VREDRAW | CS_OWNDC,
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175 | WndProc, 0, 4, hInst,
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176 | LoadIcon( NULL, IDI_APPLICATION ),
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177 | LoadCursor( NULL, IDC_ARROW ),
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178 | (HBRUSH)GetStockObject( BLACK_BRUSH ), NULL,
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179 | TEXT(title.c_str()) };
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180 | RegisterClass( &wndClass );
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181 |
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182 | // Create our main window
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183 | // Pass pointer to self
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184 | HWND hWnd = CreateWindowEx(fullScreen?WS_EX_TOPMOST:0, TEXT(title.c_str()), TEXT(title.c_str()),
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185 | dwStyle, mLeft, mTop, mWidth, mHeight, 0L, 0L, hInst, this);
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186 | mHWnd = hWnd;
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187 |
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188 | GetClientRect(mHWnd,&rc);
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189 | mWidth = rc.right;
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190 | mHeight = rc.bottom;
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191 |
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192 | if (fullScreen) {
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193 | DEVMODE DevMode;
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194 | DevMode.dmSize = sizeof(DevMode);
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195 | DevMode.dmBitsPerPel = mColourDepth;
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196 | DevMode.dmPelsWidth = mWidth;
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197 | DevMode.dmPelsHeight = mHeight;
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198 | DevMode.dmDisplayFrequency = displayFrequency;
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199 | DevMode.dmFields = DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT|DM_DISPLAYFREQUENCY;
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200 | if (ChangeDisplaySettings(&DevMode, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
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201 | LogManager::getSingleton().logMessage(LML_CRITICAL, "ChangeDisplaySettingsEx");
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202 |
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203 | }
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204 |
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205 | }
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206 | else {
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207 | mHWnd = externalHandle;
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208 | RECT rc;
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209 | GetClientRect(mHWnd, &rc);
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210 | mWidth = rc.right;
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211 | mHeight = rc.bottom;
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212 | mLeft = rc.left;
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213 | mTop = rc.top;
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214 | }
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215 | ShowWindow(mHWnd, SW_SHOWNORMAL);
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216 | UpdateWindow(mHWnd);
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217 | mName = name;
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218 | mIsDepthBuffered = depthBuffer;
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219 | mIsFullScreen = fullScreen;
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220 |
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221 |
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222 | HDC hdc = GetDC(mHWnd);
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223 |
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224 | StringUtil::StrStreamType str;
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225 | str << "Created Win32Window '"
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226 | << mName << "' : " << mWidth << "x" << mHeight
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227 | << ", " << mColourDepth << "bpp";
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228 | LogManager::getSingleton().logMessage(LML_NORMAL, str.str());
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229 |
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230 | if (!mGLSupport.selectPixelFormat(hdc, mColourDepth, multisample))
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231 | {
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232 | if (multisample == 0)
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233 | OGRE_EXCEPT(0, "selectPixelFormat failed", "Win32Window::create");
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234 |
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235 | LogManager::getSingleton().logMessage(LML_NORMAL, "FSAA level not supported, falling back");
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236 | if (!mGLSupport.selectPixelFormat(hdc, mColourDepth, 0))
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237 | OGRE_EXCEPT(0, "selectPixelFormat failed", "Win32Window::create");
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238 | }
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239 |
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240 | HGLRC glrc = wglCreateContext(hdc);
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241 | if (!glrc)
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242 | OGRE_EXCEPT(0, "wglCreateContext", "Win32Window::create");
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243 | if (!wglMakeCurrent(hdc, glrc))
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244 | OGRE_EXCEPT(0, "wglMakeCurrent", "Win32Window::create");
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245 |
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246 | mGlrc = glrc;
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247 | mHDC = hdc;
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248 |
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249 | mOldSwapIntervall = wglGetSwapIntervalEXT();
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250 | if (vsync)
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251 | wglSwapIntervalEXT(1);
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252 | else
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253 | wglSwapIntervalEXT(0);
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254 |
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255 | mReady = true;
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256 |
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257 | // Create RenderSystem context
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258 | mContext = new Win32Context(mHDC, mGlrc);
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259 | // Register the context with the rendersystem and associate it with this window
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260 | GLRenderSystem *rs = static_cast<GLRenderSystem*>(Root::getSingleton().getRenderSystem());
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261 | rs->_registerContext(this, mContext);
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262 | }
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263 |
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264 | void Win32Window::destroy(void)
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265 | {
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266 | // Unregister and destroy OGRE GLContext
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267 | if (mContext)
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268 | {
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269 | GLRenderSystem *rs = static_cast<GLRenderSystem*>(Root::getSingleton().getRenderSystem());
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270 | rs->_unregisterContext(this);
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271 | delete mContext;
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272 | mContext = NULL;
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273 |
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274 | wglSwapIntervalEXT(mOldSwapIntervall);
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275 | }
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276 | if (mGlrc) {
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277 | wglMakeCurrent(NULL, NULL);
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278 | wglDeleteContext(mGlrc);
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279 | mGlrc = NULL;
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280 | }
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281 | if (mHDC) {
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282 | ReleaseDC(mHWnd, mHDC);
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283 | mHDC = NULL;
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284 | }
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285 | if (mIsFullScreen)
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286 | {
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287 | ChangeDisplaySettings(NULL, 0);
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288 | }
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289 | if (mHWnd)
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290 | {
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291 | DestroyWindow(mHWnd);
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292 | mHWnd = 0;
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293 | }
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294 | mActive = false;
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295 | }
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296 |
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297 | bool Win32Window::isActive() const
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298 | {
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299 | return mActive;
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300 | }
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301 |
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302 | bool Win32Window::isClosed() const
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303 | {
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304 | return mClosed;
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305 | }
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306 |
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307 | void Win32Window::reposition(int left, int top)
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308 | {
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309 | // XXX FIXME
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310 | }
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311 |
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312 | void Win32Window::resize(unsigned int width, unsigned int height)
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313 | {
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314 |
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315 | mWidth = width;
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316 | mHeight = height;
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317 |
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318 | // Notify viewports of resize
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319 | ViewportList::iterator it, itend;
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320 | itend = mViewportList.end();
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321 | for( it = mViewportList.begin(); it != itend; ++it )
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322 | (*it).second->_updateDimensions();
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323 | // TODO - resize window
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324 | }
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325 |
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326 | void Win32Window::windowMovedOrResized()
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327 | {
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328 | RECT temprect;
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329 | ::GetClientRect(getWindowHandle(),&temprect);
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330 | resize(temprect.right-temprect.left,temprect.bottom-temprect.top);
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331 | // TODO
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332 | }
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333 |
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334 | void Win32Window::swapBuffers(bool waitForVSync)
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335 | {
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336 | SwapBuffers(mHDC);
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337 | }
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338 |
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339 | void Win32Window::writeContentsToFile(const String& filename)
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340 | {
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341 | ImageCodec::ImageData *imgData = new ImageCodec::ImageData();
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342 | imgData->width = mWidth;
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343 | imgData->height = mHeight;
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344 | imgData->depth = 1;
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345 | imgData->format = PF_BYTE_RGB;
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346 |
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347 | // Allocate buffer
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348 | uchar* pBuffer = new uchar[mWidth * mHeight * 3];
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349 |
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350 | // Read pixels
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351 | // I love GL: it does all the locking & colour conversion for us
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352 | glReadPixels(0,0, mWidth-1, mHeight-1, GL_RGB, GL_UNSIGNED_BYTE, pBuffer);
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353 |
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354 | // Wrap buffer in a memory stream
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355 | DataStreamPtr stream(new MemoryDataStream(pBuffer, mWidth * mHeight * 3, false));
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356 |
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357 | // Need to flip the read data over in Y though
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358 | Image img;
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359 | img.loadRawData(stream, mWidth, mHeight, imgData->format );
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360 | img.flipAroundX();
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361 |
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362 | MemoryDataStreamPtr streamFlipped(new MemoryDataStream(img.getData(), stream->size(), false));
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363 |
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364 | // Get codec
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365 | size_t pos = filename.find_last_of(".");
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366 | String extension;
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367 | if( pos == String::npos )
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368 | OGRE_EXCEPT(
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369 | Exception::ERR_INVALIDPARAMS,
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370 | "Unable to determine image type for '" + filename + "' - invalid extension.",
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371 | "Win32Window::writeContentsToFile" );
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372 |
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373 | while( pos != filename.length() - 1 )
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374 | extension += filename[++pos];
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375 |
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376 | // Get the codec
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377 | Codec * pCodec = Codec::getCodec(extension);
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378 |
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379 | // Write out
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380 | Codec::CodecDataPtr ptr(imgData);
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381 | pCodec->codeToFile(streamFlipped, filename, ptr);
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382 |
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383 | delete [] pBuffer;
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384 | }
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385 |
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386 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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387 | uchar *Win32Window::getBufferContents(int &dimx, int &dimy)
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388 | {
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389 | dimx = mWidth;
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390 | dimy = mHeight;
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391 |
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392 | // Allocate buffer
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393 | uchar* pBuffer = new uchar[mWidth * mHeight * 3];
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394 |
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395 | // Read pixels
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396 | // I love GL: it does all the locking & colour conversion for us
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397 | glReadPixels(0, 0, mWidth-1, mHeight-1, GL_RGB, GL_UNSIGNED_BYTE, pBuffer);
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398 |
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399 | return pBuffer;
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400 | }
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401 | #endif // GTP_VISIBILITY_MODIFIED_OGRE
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402 |
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403 | // Window procedure callback
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404 | // This is a static member, so applies to all windows but we store the
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405 | // Win32Window instance in the window data GetWindowLog/SetWindowLog
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406 | LRESULT Win32Window::WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
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407 | {
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408 | Win32Window* win;
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409 |
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410 | // look up window instance
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411 | if( WM_CREATE != uMsg )
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412 | win = (Win32Window*)GetWindowLong( hWnd, 0 );
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413 |
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414 | switch( uMsg )
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415 | {
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416 | case WM_ACTIVATE:
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417 | if( WA_INACTIVE == LOWORD( wParam ) )
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418 | win->mActive = false;
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419 | else
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420 | win->mActive = true;
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421 | break;
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422 |
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423 | case WM_CREATE: {
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424 | // Log the new window
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425 | // Get CREATESTRUCT
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426 | LPCREATESTRUCT lpcs = (LPCREATESTRUCT)lParam;
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427 | win = (Win32Window*)(lpcs->lpCreateParams);
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428 | // Store pointer in window user data area
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429 | SetWindowLong( hWnd, 0, (long)win );
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430 | win->mActive = true;
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431 |
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432 | return 0; }
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433 | break;
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434 |
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435 | case WM_PAINT:
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436 | // If we get WM_PAINT messges, it usually means our window was
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437 | // comvered up, so we need to refresh it by re-showing the contents
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438 | // of the current frame.
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439 | if( win->mActive && win->mReady )
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440 | win->update();
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441 | break;
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442 |
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443 | case WM_MOVE:
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444 | // Move messages need to be tracked to update the screen rects
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445 | // used for blitting the backbuffer to the primary
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446 | // *** This doesn't need to be used to Direct3D9 ***
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447 | break;
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448 |
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449 | case WM_ENTERSIZEMOVE:
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450 | // Previent rendering while moving / sizing
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451 | win->mReady = false;
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452 | break;
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453 |
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454 | case WM_EXITSIZEMOVE:
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455 | win->windowMovedOrResized();
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456 | win->mReady = true;
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457 | break;
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458 |
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459 | case WM_SIZE:
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460 | // Check to see if we are losing or gaining our window. Set the
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461 | // active flag to match
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462 | if( SIZE_MAXHIDE == wParam || SIZE_MINIMIZED == wParam )
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463 | win->mActive = false;
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464 | else
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465 | {
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466 | win->mActive = true;
|
---|
467 | if( win->mReady )
|
---|
468 | win->windowMovedOrResized();
|
---|
469 | }
|
---|
470 | break;
|
---|
471 |
|
---|
472 | case WM_GETMINMAXINFO:
|
---|
473 | // Prevent the window from going smaller than some minimu size
|
---|
474 | ((MINMAXINFO*)lParam)->ptMinTrackSize.x = 100;
|
---|
475 | ((MINMAXINFO*)lParam)->ptMinTrackSize.y = 100;
|
---|
476 | break;
|
---|
477 |
|
---|
478 | case WM_CLOSE:
|
---|
479 | DestroyWindow( win->mHWnd );
|
---|
480 | win->mClosed = true;
|
---|
481 | return 0;
|
---|
482 | }
|
---|
483 |
|
---|
484 | return DefWindowProc( hWnd, uMsg, wParam, lParam );
|
---|
485 | }
|
---|
486 |
|
---|
487 | void Win32Window::getCustomAttribute( const String& name, void* pData )
|
---|
488 | {
|
---|
489 | if( name == "HWND" )
|
---|
490 | {
|
---|
491 | HWND *pHwnd = (HWND*)pData;
|
---|
492 | *pHwnd = getWindowHandle();
|
---|
493 | return;
|
---|
494 | }
|
---|
495 | }
|
---|
496 |
|
---|
497 | }
|
---|