summaryrefslogtreecommitdiff
path: root/gfx/gl/GLContextGLX.h
blob: d4311167566b41b56ff8f43e77fc73bc0b325bf1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef GLCONTEXTGLX_H_
#define GLCONTEXTGLX_H_

#include "GLContext.h"
#include "GLXLibrary.h"
#include "mozilla/X11Util.h"

namespace mozilla {
namespace gl {

class GLContextGLX : public GLContext
{
public:
    MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextGLX, override)
    static already_AddRefed<GLContextGLX>
    CreateGLContext(CreateContextFlags flags,
                    const SurfaceCaps& caps,
                    GLContextGLX* shareContext,
                    bool isOffscreen,
                    Display* display,
                    GLXDrawable drawable,
                    GLXFBConfig cfg,
                    Drawable ownedPixmap = X11None,
                    ContextProfile profile = ContextProfile::OpenGLCompatibility);

    // Finds a GLXFBConfig compatible with the provided window.
    static bool
    FindFBConfigForWindow(Display* display, int screen, Window window,
                          ScopedXFree<GLXFBConfig>* const out_scopedConfigArr,
                          GLXFBConfig* const out_config, int* const out_visid);

    ~GLContextGLX();

    virtual GLContextType GetContextType() const override { return GLContextType::GLX; }

    static GLContextGLX* Cast(GLContext* gl) {
        MOZ_ASSERT(gl->GetContextType() == GLContextType::GLX);
        return static_cast<GLContextGLX*>(gl);
    }

    bool Init() override;

    virtual bool MakeCurrentImpl(bool aForce) override;

    virtual bool IsCurrent() override;

    virtual bool SetupLookupFunction() override;

    virtual bool IsDoubleBuffered() const override;

    virtual bool SupportsRobustness() const override;

    virtual bool SwapBuffers() override;

    virtual void GetWSIInfo(nsCString* const out) const override;

    // Overrides the current GLXDrawable backing the context and makes the
    // context current.
    bool OverrideDrawable(GLXDrawable drawable);

    // Undoes the effect of a drawable override.
    bool RestoreDrawable();

private:
    friend class GLContextProviderGLX;

    GLContextGLX(CreateContextFlags flags,
                 const SurfaceCaps& caps,
                 GLContext* shareContext,
                 bool isOffscreen,
                 Display* aDisplay,
                 GLXDrawable aDrawable,
                 GLXContext aContext,
                 bool aDoubleBuffered,
                 ContextProfile profile,
                 Drawable aOwnedPixmap = X11None);

    GLXContext mContext;
    Display* mDisplay;
    GLXDrawable mDrawable;
    Maybe<GLXDrawable> mOverrideDrawable;
    // The X pixmap associated with the GLX pixmap. If this is provided, then 
    // this class assumes responsibility for freeing both. Otherwise, the 
    // user of this class is responsibile for freeing the drawables.
    const Drawable mOwnedPixmap;
    bool mDoubleBuffered;

    GLXLibrary* mGLX;

    bool mOwnsContext;
};

} // namespace gl
} // namespace mozilla

#endif // GLCONTEXTGLX_H_