1 /*
2 -----------------------------------------------------------------------------
3 This source file is part of OGRE
4     (Object-oriented Graphics Rendering Engine)
5 For the latest info, see http://www.ogre3d.org/
6 
7 Copyright (c) 2008 Renato Araujo Oliveira Filho <renatox@gmail.com>
8 Copyright (c) 2000-2013 Torus Knot Software Ltd
9 
10 Permission is hereby granted, free of charge, to any person obtaining a copy
11 of this software and associated documentation files (the "Software"), to deal
12 in the Software without restriction, including without limitation the rights
13 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 copies of the Software, and to permit persons to whom the Software is
15 furnished to do so, subject to the following conditions:
16 
17 The above copyright notice and this permission notice shall be included in
18 all copies or substantial portions of the Software.
19 
20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 THE SOFTWARE.
27 -----------------------------------------------------------------------------
28 */
29 
30 #include "OgreException.h"
31 #include "OgreLogManager.h"
32 #include "OgreStringConverter.h"
33 #include "OgreRoot.h"
34 
35 #include "OgreGLES2Prerequisites.h"
36 #include "OgreGLES2RenderSystem.h"
37 
38 #include "OgreWin32EGLSupport.h"
39 #include "OgreWin32EGLWindow.h"
40 #include "OgreWin32EGLRenderTexture.h"
41 #include "OgreWin32EGLContext.h"
42 
43 
44 
45 namespace Ogre {
46 
47 
Win32EGLSupport()48 	Win32EGLSupport::Win32EGLSupport()
49 	{
50 		//RECT windowRect;
51 		//GetClientRect(mNativeDisplay, &windowRect);
52 		mNativeDisplay = getNativeDisplay();
53 		mGLDisplay = getGLDisplay();
54 
55 		// Video mode possibilities
56 		DEVMODE DevMode;
57 		DevMode.dmSize = sizeof(DEVMODE);
58 		for (DWORD i = 0; EnumDisplaySettings(NULL, i, &DevMode); ++i)
59 		{
60 			if (DevMode.dmBitsPerPel < 16)
61 				continue;
62 
63 			mCurrentMode.first.first = DevMode.dmPelsWidth;
64 			mCurrentMode.first.second = DevMode.dmPelsHeight;
65 			mCurrentMode.second = 0;
66 			mOriginalMode = mCurrentMode;
67 			mVideoModes.push_back(mCurrentMode);
68 		}
69 
70 		EGLConfig *glConfigs;
71 		int config, nConfigs = 0;
72 
73 		EGLint const attrib_list[] =  {
74 			EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
75 			EGL_BUFFER_SIZE, 32,
76 			EGL_DEPTH_SIZE, 24,
77 			EGL_STENCIL_SIZE, 8,
78 			EGL_NONE
79 		};
80 
81 		glConfigs = chooseGLConfig(attrib_list, &nConfigs);
82 
83 		for (config = 0; config < nConfigs; config++)
84 		{
85 			int caveat, samples;
86 
87 			getGLConfigAttrib(glConfigs[config], EGL_CONFIG_CAVEAT, &caveat);
88 
89 			if (caveat != EGL_SLOW_CONFIG)
90 			{
91 				getGLConfigAttrib(glConfigs[config], EGL_SAMPLES, &samples);
92 				mSampleLevels.push_back(StringConverter::toString(samples));
93 			}
94 		}
95 
96 		free(glConfigs);
97 
98 		removeDuplicates(mSampleLevels);
99 
100 
101 	}
102 
~Win32EGLSupport()103 	Win32EGLSupport::~Win32EGLSupport()
104 	{
105 
106 	}
107 
108 	//Removed createEGLWindow because it was easier to call new Win32EGLWindow
109 	//directly to get the native version.
110 //	EGLWindow* Win32EGLSupport::createEGLWindow(  EGLSupport * support )
111 //	{
112 //		return new Win32EGLWindow(support);
113 //	}
114 
115 	/*GLESPBuffer* Win32EGLSupport::createPBuffer( PixelComponentType format, size_t width, size_t height )
116 	{
117 		return new Win32EGLPBuffer(this, format, width, height);
118 	}*/
119 
switchMode(uint & width,uint & height,short & frequency)120 	void Win32EGLSupport::switchMode( uint& width, uint& height, short& frequency )
121 	{
122 		if (!mRandr)
123 			return;
124 
125 		int size = 0;
126 		int newSize = -1;
127 
128 		VideoModes::iterator mode;
129 		VideoModes::iterator end = mVideoModes.end();
130 		VideoMode *newMode = 0;
131 
132 		for(mode = mVideoModes.begin(); mode != end; size++)
133 		{
134 			if (mode->first.first >= static_cast<int>(width) &&
135 				mode->first.second >= static_cast<int>(height))
136 			{
137 				if (!newMode ||
138 					mode->first.first < newMode->first.first ||
139 					mode->first.second < newMode->first.second)
140 				{
141 					newSize = size;
142 					newMode = &(*mode);
143 				}
144 			}
145 
146 			VideoMode* lastMode = &(*mode);
147 
148 			while (++mode != end && mode->first == lastMode->first)
149 			{
150 				if (lastMode == newMode && mode->second == frequency)
151 				{
152 					newMode = &(*mode);
153 				}
154 			}
155 		}
156 
157 		//todo
158 	}
159 
160 	//Moved to native from EGLSupport
newWindow(const String & name,unsigned int width,unsigned int height,bool fullScreen,const NameValuePairList * miscParams)161    RenderWindow* Win32EGLSupport::newWindow(const String &name,
162                                         unsigned int width, unsigned int height,
163                                         bool fullScreen,
164                                         const NameValuePairList *miscParams)
165     {
166 //        EGLWindow* window = createEGLWindow(this);
167 
168 	Win32EGLWindow* window = new Win32EGLWindow(this);
169         window->create(name, width, height, fullScreen, miscParams);
170 
171         return window;
172     }
173 
174 	//Moved to native from EGLSupport
getNativeDisplay()175 	NativeDisplayType Win32EGLSupport::getNativeDisplay()
176 	{
177 		return EGL_DEFAULT_DISPLAY; // TODO
178 	}
179 
180 	//Win32EGLSupport::getGLDisplay sets up the native variable
181 	//then calls EGLSupport::getGLDisplay
getGLDisplay()182 	EGLDisplay Win32EGLSupport::getGLDisplay()
183 	{
184 		if (!mGLDisplay)
185 		{
186 			mNativeDisplay = getNativeDisplay();
187 			return EGLSupport::getGLDisplay();
188 		}
189 		return mGLDisplay;
190 	}
191 
192 
193 }
194