source: OGRE/trunk/ogrenew/RenderSystems/GL/include/GLX/OgreGLXUtils.h @ 692

Revision 692, 3.5 KB checked in by mattausch, 19 years ago (diff)

adding ogre 1.2 and dependencies

Line 
1/*
2-----------------------------------------------------------------------------
3This source file is part of OGRE
4(Object-oriented Graphics Rendering Engine)
5For the latest info, see http://www.ogre3d.org/
6
7Copyright (c) 2000-2005 The OGRE Team
8Also see acknowledgements in Readme.html
9
10This program is free software; you can redistribute it and/or modify it under
11the terms of the GNU Lesser General Public License as published by the Free Software
12Foundation; either version 2 of the License, or (at your option) any later
13version.
14
15This program is distributed in the hope that it will be useful, but WITHOUT
16ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
18
19You should have received a copy of the GNU Lesser General Public License along with
20this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21Place - Suite 330, Boston, MA 02111-1307, USA, or go to
22http://www.gnu.org/copyleft/lesser.txt.
23-----------------------------------------------------------------------------
24*/
25#ifndef __GLXUtils_H__
26#define __GLXUtils_H__
27
28#include "OgrePrerequisites.h"
29#include <X11/Xlib.h>
30#include <GL/glx.h>
31
32namespace Ogre {
33   /**
34     * Class that acquires and stores properties of a frame buffer configuration
35     */
36    class FBConfigData
37    {
38    public:
39        FBConfigData();
40        FBConfigData(Display *dpy, GLXFBConfig config);
41        String toString() const;
42       
43        int configID;
44        int visualID;
45        int bufferSize;
46        int level;
47        int doubleBuffer;
48        int stereo;
49        int auxBuffers;
50        int renderType;
51        int redSize;
52        int greenSize;
53        int blueSize;
54        int alphaSize;
55        int depthSize;
56        int stencilSize;
57        int accumRedSize;
58        int accumGreenSize;       
59        int accumBlueSize;
60        int accumAlphaSize;       
61        int drawableType;
62        int caveat;
63        int maxPBufferWidth;
64        int maxPBufferHeight;
65        int maxPBufferPixels;       
66    };
67    class GLXUtils {
68    public:
69        /**
70         * Loads an icon from an Ogre resource into the X Server. This currently only
71         * works for 24 and 32 bit displays. The image must be findable by the Ogre
72         * resource system, and of format PF_A8R8G8B8.
73         *
74         * @param mDisplay,rootWindow   X resources to use
75         * @param name           Name of image to load
76         * @param pix         Receiver for the output pixmap
77         * @param mask           Receiver for the output mask (alpha bitmap)
78         * @returns true on success
79         */       
80        static bool LoadIcon(Display *mDisplay, Window rootWindow, const std::string &name, Pixmap *pix, Pixmap *mask);
81        /*
82         * Examine all visuals to find the so-called best one.
83         * We prefer deepest RGBA buffer with depth, stencil and accum
84         * that has no caveats. This will only choose formats with a multisample
85                 * that equals multisample
86                 * @returns -1 in case of failure, otherwise a valid visual ID
87         * @author Brian Paul (from the glxinfo source)
88         */
89        static int findBestVisual(Display *dpy, int scrnum, int multisample = -1);
90        /**
91         * Find best FBConfig given a list required and a list of desired properties
92         */
93        static GLXFBConfig findBestMatch(Display *dpy, int scrnum, const int *attribs, const int *ideal);
94       
95    };
96   
97};
98
99#endif
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