[692] | 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 | // Don't use wglew as if this is the first window, we won't have initialised yet
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| 260 | PFNWGLSWAPINTERVALEXTPROC _wglSwapIntervalEXT =
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| 261 | (PFNWGLSWAPINTERVALEXTPROC)wglGetProcAddress("wglSwapIntervalEXT");
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| 262 | _wglSwapIntervalEXT(vsync? 1 : 0);
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| 263 |
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| 264 | if (old_context)
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| 265 | {
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| 266 | // Restore old context
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| 267 | if (!wglMakeCurrent(old_hdc, old_context))
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| 268 | OGRE_EXCEPT(0, "wglMakeCurrent() failed", "Win32Window::create");
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| 269 |
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| 270 | // Share lists with old context
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| 271 | if (!wglShareLists(old_context, mGlrc))
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| 272 | OGRE_EXCEPT(0, "wglShareLists() failed", " Win32Window::create");
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| 273 | }
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| 274 |
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| 275 | // Create RenderSystem context
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| 276 | mContext = new Win32Context(mHDC, mGlrc);
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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 | delete mContext;
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| 288 |
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| 289 | if (mGlrc)
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| 290 | {
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| 291 | wglDeleteContext(mGlrc);
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| 292 | mGlrc = 0;
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| 293 | }
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| 294 | if (!mIsExternal)
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| 295 | {
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| 296 | if (mIsFullScreen)
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| 297 | ChangeDisplaySettings(NULL, 0);
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| 298 | DestroyWindow(mHWnd);
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| 299 | }
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| 300 | mActive = false;
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| 301 | mHDC = 0; // no release thanks to CS_OWNDC wndclass style
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| 302 | mHWnd = 0;
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| 303 | }
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| 304 |
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| 305 | bool Win32Window::isVisible() const
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| 306 | {
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| 307 | return (mHWnd && !IsIconic(mHWnd));
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| 308 | }
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| 309 |
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| 310 | bool Win32Window::isClosed() const
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| 311 | {
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| 312 | return mClosed;
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| 313 | }
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| 314 |
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| 315 | void Win32Window::reposition(int left, int top)
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| 316 | {
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| 317 | if (mHWnd && !mIsFullScreen)
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| 318 | {
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| 319 | SetWindowPos(mHWnd, 0, left, top, 0, 0,
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| 320 | SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
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| 321 | }
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| 322 | }
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| 323 |
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| 324 | void Win32Window::resize(unsigned int width, unsigned int height)
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| 325 | {
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| 326 | if (mHWnd && !mIsFullScreen)
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| 327 | {
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| 328 | RECT rc = { 0, 0, width, height };
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| 329 | AdjustWindowRect(&rc, GetWindowLong(mHWnd, GWL_STYLE), false);
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| 330 | width = rc.right - rc.left;
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| 331 | height = rc.bottom - rc.top;
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| 332 | SetWindowPos(mHWnd, 0, 0, 0, width, height,
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| 333 | SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE);
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| 334 | }
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| 335 | }
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| 336 |
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| 337 | void Win32Window::windowMovedOrResized()
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| 338 | {
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| 339 | if (!isVisible())
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| 340 | return;
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| 341 |
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| 342 | RECT rc;
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| 343 | // top and left represent outer window position
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| 344 | GetWindowRect(mHWnd, &rc);
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| 345 | mTop = rc.top;
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| 346 | mLeft = rc.left;
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| 347 | // width and height represent drawable area only
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| 348 | GetClientRect(mHWnd, &rc);
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| 349 |
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| 350 | if (mWidth == rc.right && mHeight == rc.bottom)
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| 351 | return;
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| 352 |
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| 353 | mWidth = rc.right;
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| 354 | mHeight = rc.bottom;
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| 355 |
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| 356 | // Notify viewports of resize
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| 357 | ViewportList::iterator it, itend;
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| 358 | itend = mViewportList.end();
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| 359 | for( it = mViewportList.begin(); it != itend; ++it )
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| 360 | (*it).second->_updateDimensions();
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| 361 | }
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| 362 |
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| 363 | void Win32Window::swapBuffers(bool waitForVSync)
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| 364 | {
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| 365 | SwapBuffers(mHDC);
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| 366 | }
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| 367 |
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| 368 | void Win32Window::writeContentsToFile(const String& filename)
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| 369 | {
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| 370 | ImageCodec::ImageData *imgData = new ImageCodec::ImageData();
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| 371 | imgData->width = mWidth;
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| 372 | imgData->height = mHeight;
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| 373 | imgData->depth = 1;
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| 374 | imgData->format = PF_BYTE_RGB;
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| 375 |
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| 376 | // Allocate buffer
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| 377 | uchar* pBuffer = new uchar[mWidth * mHeight * 3];
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| 378 |
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| 379 | // Read pixels
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| 380 | // I love GL: it does all the locking & colour conversion for us
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| 381 | glReadPixels(0,0, mWidth-1, mHeight-1, GL_RGB, GL_UNSIGNED_BYTE, pBuffer);
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| 382 |
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| 383 | // Wrap buffer in a memory stream
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| 384 | DataStreamPtr stream(new MemoryDataStream(pBuffer, mWidth * mHeight * 3, false));
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| 385 |
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| 386 | // Need to flip the read data over in Y though
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| 387 | Image img;
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| 388 | img.loadRawData(stream, mWidth, mHeight, imgData->format );
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| 389 | img.flipAroundX();
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| 390 |
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| 391 | MemoryDataStreamPtr streamFlipped(new MemoryDataStream(img.getData(), stream->size(), false));
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| 392 |
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| 393 | // Get codec
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| 394 | size_t pos = filename.find_last_of(".");
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| 395 | String extension;
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| 396 | if( pos == String::npos )
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| 397 | OGRE_EXCEPT(
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| 398 | Exception::ERR_INVALIDPARAMS,
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| 399 | "Unable to determine image type for '" + filename + "' - invalid extension.",
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| 400 | "Win32Window::writeContentsToFile" );
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| 401 |
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| 402 | while( pos != filename.length() - 1 )
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| 403 | extension += filename[++pos];
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| 404 |
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| 405 | // Get the codec
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| 406 | Codec * pCodec = Codec::getCodec(extension);
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| 407 |
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| 408 | // Write out
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| 409 | Codec::CodecDataPtr ptr(imgData);
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| 410 | pCodec->codeToFile(streamFlipped, filename, ptr);
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| 411 |
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| 412 | delete [] pBuffer;
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| 413 | }
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| 414 |
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| 415 | // Window procedure callback
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| 416 | // This is a static member, so applies to all windows but we store the
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| 417 | // Win32Window instance in the window data GetWindowLog/SetWindowLog
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| 418 | LRESULT Win32Window::WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
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| 419 | {
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| 420 |
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| 421 | if (uMsg == WM_CREATE)
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| 422 | {
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| 423 | // Store pointer to Win32Window in user data area
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| 424 | SetWindowLongPtr(hWnd, GWLP_USERDATA,
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| 425 | (LONG)(((LPCREATESTRUCT)lParam)->lpCreateParams));
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| 426 | return 0;
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| 427 | }
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| 428 |
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| 429 | // look up window instance
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| 430 | // note: it is possible to get a WM_SIZE before WM_CREATE
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| 431 | Win32Window* win = (Win32Window*)GetWindowLongPtr(hWnd, GWLP_USERDATA);
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| 432 | if (!win)
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| 433 | return DefWindowProc(hWnd, uMsg, wParam, lParam);
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| 434 |
|
---|
| 435 | switch( uMsg )
|
---|
| 436 | {
|
---|
| 437 | case WM_ACTIVATE:
|
---|
| 438 | if (win->mIsFullScreen)
|
---|
| 439 | {
|
---|
| 440 | if (LOWORD(wParam) == WA_INACTIVE)
|
---|
| 441 | {
|
---|
| 442 | win->mActive = false;
|
---|
| 443 | ChangeDisplaySettings(NULL, 0);
|
---|
| 444 | ShowWindow(hWnd, SW_SHOWMINNOACTIVE);
|
---|
| 445 | }
|
---|
| 446 | else
|
---|
| 447 | {
|
---|
| 448 | win->mActive = true;
|
---|
| 449 | ShowWindow(hWnd, SW_SHOWNORMAL);
|
---|
| 450 |
|
---|
| 451 | DEVMODE dm;
|
---|
| 452 | dm.dmSize = sizeof(DEVMODE);
|
---|
| 453 | dm.dmBitsPerPel = win->mColourDepth;
|
---|
| 454 | dm.dmPelsWidth = win->mWidth;
|
---|
| 455 | dm.dmPelsHeight = win->mHeight;
|
---|
| 456 | dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
|
---|
| 457 | if (win->mDisplayFrequency)
|
---|
| 458 | {
|
---|
| 459 | dm.dmDisplayFrequency = win->mDisplayFrequency;
|
---|
| 460 | dm.dmFields |= DM_DISPLAYFREQUENCY;
|
---|
| 461 | }
|
---|
| 462 | ChangeDisplaySettings(&dm, CDS_FULLSCREEN);
|
---|
| 463 | }
|
---|
| 464 | }
|
---|
| 465 | break;
|
---|
| 466 |
|
---|
| 467 | case WM_ENTERSIZEMOVE:
|
---|
| 468 | win->mSizing = true;
|
---|
| 469 | break;
|
---|
| 470 |
|
---|
| 471 | case WM_EXITSIZEMOVE:
|
---|
| 472 | win->windowMovedOrResized();
|
---|
| 473 | win->mSizing = false;
|
---|
| 474 | break;
|
---|
| 475 |
|
---|
| 476 | case WM_MOVE:
|
---|
| 477 | case WM_SIZE:
|
---|
| 478 | if (!win->mSizing)
|
---|
| 479 | win->windowMovedOrResized();
|
---|
| 480 | break;
|
---|
| 481 |
|
---|
| 482 | case WM_GETMINMAXINFO:
|
---|
| 483 | // Prevent the window from going smaller than some minimu size
|
---|
| 484 | ((MINMAXINFO*)lParam)->ptMinTrackSize.x = 100;
|
---|
| 485 | ((MINMAXINFO*)lParam)->ptMinTrackSize.y = 100;
|
---|
| 486 | break;
|
---|
| 487 |
|
---|
| 488 | case WM_CLOSE:
|
---|
| 489 | win->destroy(); // will call DestroyWindow
|
---|
| 490 | win->mClosed = true;
|
---|
| 491 | return 0;
|
---|
| 492 | }
|
---|
| 493 |
|
---|
| 494 | return DefWindowProc( hWnd, uMsg, wParam, lParam );
|
---|
| 495 | }
|
---|
| 496 |
|
---|
| 497 | void Win32Window::getCustomAttribute( const String& name, void* pData )
|
---|
| 498 | {
|
---|
| 499 | if( name == "GLCONTEXT" ) {
|
---|
| 500 | *static_cast<GLContext**>(pData) = mContext;
|
---|
| 501 | return;
|
---|
| 502 | } else if( name == "HWND" )
|
---|
| 503 | {
|
---|
| 504 | HWND *pHwnd = (HWND*)pData;
|
---|
| 505 | *pHwnd = getWindowHandle();
|
---|
| 506 | return;
|
---|
| 507 | }
|
---|
| 508 | }
|
---|
| 509 |
|
---|
| 510 | }
|
---|