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Fix wxGTK compilation in wxUSE_MENUS==0 case.
[wxWidgets.git] / include / wx / unix / glx11.h
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1///////////////////////////////////////////////////////////////////////////////
2// Name: wx/unix/glx11.h
3// Purpose: class common for all X11-based wxGLCanvas implementations
4// Author: Vadim Zeitlin
5// Created: 2007-04-15
6// RCS-ID: $Id$
7// Copyright: (c) 2007 Vadim Zeitlin <vadim@wxwindows.org>
8// Licence: wxWindows licence
9///////////////////////////////////////////////////////////////////////////////
10
11#ifndef _WX_UNIX_GLX11_H_
12#define _WX_UNIX_GLX11_H_
13
14#include <GL/glx.h>
15
16// ----------------------------------------------------------------------------
17// wxGLContext
18// ----------------------------------------------------------------------------
19
5a83f42b 20class WXDLLIMPEXP_GL wxGLContext : public wxGLContextBase
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21{
22public:
23 wxGLContext(wxGLCanvas *win, const wxGLContext *other = NULL);
24 virtual ~wxGLContext();
25
5ec69e96 26 virtual bool SetCurrent(const wxGLCanvas& win) const;
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27
28private:
29 // attach context to the drawable or unset it (if NULL)
5ec69e96 30 static bool MakeCurrent(GLXDrawable drawable, GLXContext context);
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31
32 GLXContext m_glContext;
33
34 DECLARE_CLASS(wxGLContext)
35};
36
37// ----------------------------------------------------------------------------
38// wxGLCanvasX11
39// ----------------------------------------------------------------------------
40
5a83f42b 41class WXDLLIMPEXP_GL wxGLCanvasX11 : public wxGLCanvasBase
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42{
43public:
44 // initialization and dtor
45 // -----------------------
46
47 // default ctor doesn't do anything, InitVisual() must be called
48 wxGLCanvasX11();
49
50 // initializes the XVisualInfo corresponding to the given attributes
51 bool InitVisual(const int *attribList);
52
53 // frees XVisualInfo info
54 virtual ~wxGLCanvasX11();
55
56
57 // implement wxGLCanvasBase methods
58 // --------------------------------
59
5ec69e96 60 virtual bool SwapBuffers();
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61
62
63 // X11-specific methods
64 // --------------------
65
66 // return GLX version: 13 means 1.3 &c
67 static int GetGLXVersion();
68
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69 // return true if multisample extension is available
70 static bool IsGLXMultiSampleAvailable();
71
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72 // get the X11 handle of this window
73 virtual Window GetXWindow() const = 0;
74
75
76 // override some wxWindow methods
77 // ------------------------------
78
79 // return true only if the window is realized: OpenGL context can't be
80 // created until we are
81 virtual bool IsShownOnScreen() const;
82
83
84 // implementation only from now on
85 // -------------------------------
86
87 // get the GLXFBConfig/XVisualInfo we use
88 GLXFBConfig *GetGLXFBConfig() const { return m_fbc; }
89 XVisualInfo *GetXVisualInfo() const { return m_vi; }
90
91 // initialize the global default GL visual, return false if matching visual
92 // not found
93 static bool InitDefaultVisualInfo(const int *attribList);
94
95 // get the default GL X11 visual (may be NULL, shouldn't be freed by caller)
96 static XVisualInfo *GetDefaultXVisualInfo() { return ms_glVisualInfo; }
97
98 // free the global GL visual, called by wxGLApp
99 static void FreeDefaultVisualInfo();
100
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101 // initializes XVisualInfo (in any case) and, if supported, GLXFBConfig
102 //
103 // returns false if XVisualInfo couldn't be initialized, otherwise caller
104 // is responsible for freeing the pointers
105 static bool InitXVisualInfo(const int *attribList,
106 GLXFBConfig **pFBC, XVisualInfo **pXVisual);
107
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108private:
109 // fills in glattrs with attributes defined by wxattrs which must be
110 // 0-terminated if it is non-NULL
111 //
112 // n is the max size of glattrs, false is returned if we overflow it, it
113 // should be at least 16 to accommodate the default attributes
114 static bool ConvertWXAttrsToGL(const int *wxattrs, int *glattrs, size_t n);
115
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116
117 // this is only used if it's supported i.e. if GL >= 1.3
118 GLXFBConfig *m_fbc;
119
120 // used for all GL versions, obtained from GLXFBConfig for GL >= 1.3
121 XVisualInfo *m_vi;
122
123 // the global/default versions of the above
124 static GLXFBConfig *ms_glFBCInfo;
125 static XVisualInfo *ms_glVisualInfo;
126};
127
128// ----------------------------------------------------------------------------
129// wxGLApp
130// ----------------------------------------------------------------------------
131
132// this is used in wx/glcanvas.h, prevent it from defining a generic wxGLApp
133#define wxGL_APP_DEFINED
134
5a83f42b 135class WXDLLIMPEXP_GL wxGLApp : public wxGLAppBase
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136{
137public:
1c269771 138 wxGLApp() : wxGLAppBase() { }
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139
140 // implement wxGLAppBase method
141 virtual bool InitGLVisual(const int *attribList)
142 {
143 return wxGLCanvasX11::InitDefaultVisualInfo(attribList);
144 }
145
146 // and implement this wxGTK::wxApp method too
147 virtual void *GetXVisualInfo()
148 {
149 return wxGLCanvasX11::GetDefaultXVisualInfo();
150 }
151
152 // and override this wxApp method to clean up
153 virtual int OnExit()
154 {
155 wxGLCanvasX11::FreeDefaultVisualInfo();
156
157 return wxGLAppBase::OnExit();
158 }
159
160private:
047b6c71 161 DECLARE_DYNAMIC_CLASS(wxGLApp)
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162};
163
164#endif // _WX_UNIX_GLX11_H_
165