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<h1>FXGLContext.h</h1><div class="fragment"><pre>00001 <span class="comment">/********************************************************************************</span>
00002 <span class="comment">* *</span>
00003 <span class="comment">* G L C o n t e x t C l a s s *</span>
00004 <span class="comment">* *</span>
00005 <span class="comment">*********************************************************************************</span>
00006 <span class="comment">* Copyright (C) 2000,2004 by Jeroen van der Zijp. All Rights Reserved. *</span>
00007 <span class="comment">*********************************************************************************</span>
00008 <span class="comment">* This library is free software; you can redistribute it and/or *</span>
00009 <span class="comment">* modify it under the terms of the GNU Lesser General Public *</span>
00010 <span class="comment">* License as published by the Free Software Foundation; either *</span>
00011 <span class="comment">* version 2.1 of the License, or (at your option) any later version. *</span>
00012 <span class="comment">* *</span>
00013 <span class="comment">* This library is distributed in the hope that it will be useful, *</span>
00014 <span class="comment">* but WITHOUT ANY WARRANTY; without even the implied warranty of *</span>
00015 <span class="comment">* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *</span>
00016 <span class="comment">* Lesser General Public License for more details. *</span>
00017 <span class="comment">* *</span>
00018 <span class="comment">* You should have received a copy of the GNU Lesser General Public *</span>
00019 <span class="comment">* License along with this library; if not, write to the Free Software *</span>
00020 <span class="comment">* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *</span>
00021 <span class="comment">*********************************************************************************</span>
00022 <span class="comment">* $Id: FXGLContext.h,v 1.12 2004/02/08 17:17:33 fox Exp $ *</span>
00023 <span class="comment">********************************************************************************/</span>
00024 <span class="preprocessor">#ifndef FXGLCONTEXT_H</span>
00025 <span class="preprocessor"></span><span class="preprocessor">#define FXGLCONTEXT_H</span>
00026 <span class="preprocessor"></span><span class="comment"></span>
00027 <span class="comment">////////////////////////////// UNDER DEVELOPMENT //////////////////////////////</span>
00028 <span class="comment"></span>
00029 <span class="keyword">namespace </span>FX {
00030
00031 <span class="keyword">class </span>FXApp;
00032 <span class="keyword">class </span>FXDrawable;
00033 <span class="keyword">class </span>FXGLVisual;
00034
00035 <span class="comment"></span>
00036 <span class="comment">/**</span>
00037 <span class="comment">* A GL context is an object representing the OpenGL state information.</span>
00038 <span class="comment">* Multiple GL context may share display lists to conserve memory.</span>
00039 <span class="comment">* When drawing multiple windows, it may be advantageous to share not only</span>
00040 <span class="comment">* display lists, but also GL contexts. Since the GL context is created</span>
00041 <span class="comment">* for a certain frame-buffer configuration, sharing of GL contexts is</span>
00042 <span class="comment">* only possible if the windows sharing the GL context all have the same</span>
00043 <span class="comment">* GL visual.</span>
00044 <span class="comment">* However, display lists may be shared between different GL contexts.</span>
00045 <span class="comment">*/</span>
<a name="l00046"></a><a class="code" href="classFX_1_1FXGLContext.html">00046</a> <span class="keyword">class </span>FXAPI FXGLContext : <span class="keyword">public</span> <a class="code" href="classFX_1_1FXId.html">FXId</a> {
00047 FXDECLARE(FXGLContext)
00048 <span class="keyword">private</span>:
00049 <a class="code" href="classFX_1_1FXGLVisual.html">FXGLVisual</a> *visual; <span class="comment">// Visual for this context</span>
00050 <a class="code" href="classFX_1_1FXDrawable.html">FXDrawable</a> *surface; <span class="comment">// Drawable context is locked on</span>
00051 FXGLContext *sgnext; <span class="comment">// Share group next in share list</span>
00052 FXGLContext *sgprev; <span class="comment">// Share group previous in share list</span>
00053 <span class="keyword">protected</span>:
00054 <span class="keywordtype">void</span> *ctx; <span class="comment">// GL Context</span>
00055 <span class="keyword">protected</span>:
00056 FXGLContext():visual(NULL),surface(NULL),sgnext(NULL),sgprev(NULL),ctx(NULL){}
00057 <span class="keyword">private</span>:
00058 FXGLContext(<span class="keyword">const</span> FXGLContext&);
00059 FXGLContext &operator=(<span class="keyword">const</span> FXGLContext&);
00060 <span class="keyword">public</span>:
00061 <span class="comment"></span>
00062 <span class="comment"> /**</span>
00063 <span class="comment"> * Construct an OpenGL context with its own private display list.</span>
<a name="l00064"></a><a class="code" href="classFX_1_1FXGLContext.html#a3">00064</a> <span class="comment"> */</span>
00065 FXGLContext(<a class="code" href="classFX_1_1FXApp.html">FXApp</a>* a,<a class="code" href="classFX_1_1FXGLVisual.html">FXGLVisual</a> *vis);
00066 <span class="comment"></span>
00067 <span class="comment"> /**</span>
00068 <span class="comment"> * Construct an OpenGL context sharing display lists with an existing GL context.</span>
00069 <span class="comment"> */</span>
00070 FXGLContext(<a class="code" href="classFX_1_1FXApp.html">FXApp</a>* a,<a class="code" href="classFX_1_1FXGLVisual.html">FXGLVisual</a> *vis,FXGLContext *shared);
00071 <span class="comment"></span>
00072 <span class="comment"> /// Return TRUE if it is sharing display lists</span>
00073 <span class="comment"></span> FXbool isShared() <span class="keyword">const</span>;
00074 <span class="comment"></span>
00075 <span class="comment"> /// Get the visual</span>
00076 <span class="comment"></span> <a class="code" href="classFX_1_1FXGLVisual.html">FXGLVisual</a>* getVisual()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> visual; }
00077 <span class="comment"></span>
00078 <span class="comment"> /// Create context</span>
00079 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> create();
00080 <span class="comment"></span>
00081 <span class="comment"> /// Detach the server-side resources for this window</span>
00082 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> detach();
00083 <span class="comment"></span>
00084 <span class="comment"> /// Destroy the server-side resources for this window</span>
00085 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> destroy();
00086 <span class="comment"></span>
00087 <span class="comment"> /// Make OpenGL context current prior to performing OpenGL commands</span>
00088 <span class="comment"></span> FXbool begin(FXDrawable *drawable);
00089 <span class="comment"></span>
00090 <span class="comment"> /// Make OpenGL context non current</span>
00091 <span class="comment"></span> FXbool end();
00092 <span class="comment"></span>
00093 <span class="comment"> /// Swap front and back buffer</span>
00094 <span class="comment"></span> <span class="keywordtype">void</span> swapBuffers();
00095 <span class="comment"></span>
00096 <span class="comment"> /// Copy part of backbuffer to front buffer [Mesa]</span>
00097 <span class="comment"></span> <span class="keywordtype">void</span> swapSubBuffers(FXint x,FXint y,FXint w,FXint h);
00098 <span class="comment"></span>
00099 <span class="comment"> /// Save object to stream</span>
00100 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> save(FXStream& store) <span class="keyword">const</span>;
00101 <span class="comment"></span>
00102 <span class="comment"> /// Load object from stream</span>
00103 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> load(FXStream& store);
00104 <span class="comment"></span>
00105 <span class="comment"> /// Destructor</span>
00106 <span class="comment"></span> <span class="keyword">virtual</span> ~FXGLContext();
00107 };
00108
00109 }
00110
00111 <span class="preprocessor">#endif</span>
00112 <span class="preprocessor"></span>
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