1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #ifndef GLCONTEXTEGL_H_
8 #define GLCONTEXTEGL_H_
9
10 #include "GLContext.h"
11 #include "GLLibraryEGL.h"
12 #include "nsRegion.h"
13 #include <memory>
14
15 namespace mozilla {
16 namespace layers {
17 class SurfaceTextureImage;
18 } // namespace layers
19 namespace widget {
20 class CompositorWidget;
21 } // namespace widget
22 namespace gl {
23
24 RefPtr<GLLibraryEGL> DefaultEglLibrary(nsACString* const out_failureId);
25
DefaultEglDisplay(nsACString * const out_failureId)26 inline std::shared_ptr<EglDisplay> DefaultEglDisplay(
27 nsACString* const out_failureId) {
28 const auto lib = DefaultEglLibrary(out_failureId);
29 if (!lib) {
30 return nullptr;
31 }
32 return lib->DefaultDisplay(out_failureId);
33 }
34
35 // -
36
37 class GLContextEGL final : public GLContext {
38 public:
39 MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextEGL, override)
40
41 static RefPtr<GLContextEGL> CreateGLContext(
42 std::shared_ptr<EglDisplay>, const GLContextDesc&, EGLConfig config,
43 EGLSurface surface, const bool useGles, nsACString* const out_failureId);
44
45 private:
46 GLContextEGL(std::shared_ptr<EglDisplay>, const GLContextDesc&,
47 EGLConfig config, EGLSurface surface, EGLContext context);
48 ~GLContextEGL();
49
50 public:
GetContextType()51 virtual GLContextType GetContextType() const override {
52 return GLContextType::EGL;
53 }
54
Cast(GLContext * gl)55 static GLContextEGL* Cast(GLContext* gl) {
56 MOZ_ASSERT(gl->GetContextType() == GLContextType::EGL);
57 return static_cast<GLContextEGL*>(gl);
58 }
59
60 bool Init() override;
61
IsDoubleBuffered()62 virtual bool IsDoubleBuffered() const override { return mIsDoubleBuffered; }
63
SetIsDoubleBuffered(bool aIsDB)64 void SetIsDoubleBuffered(bool aIsDB) { mIsDoubleBuffered = aIsDB; }
65
IsANGLE()66 virtual bool IsANGLE() const override { return mEgl->mLib->IsANGLE(); }
IsWARP()67 virtual bool IsWARP() const override { return mEgl->mIsWARP; }
68
69 virtual bool BindTexImage() override;
70
71 virtual bool ReleaseTexImage() override;
72
73 void SetEGLSurfaceOverride(EGLSurface surf);
GetEGLSurfaceOverride()74 EGLSurface GetEGLSurfaceOverride() { return mSurfaceOverride; }
75
76 virtual bool MakeCurrentImpl() const override;
77
78 virtual bool IsCurrentImpl() const override;
79
80 virtual bool RenewSurface(widget::CompositorWidget* aWidget) override;
81
82 virtual void ReleaseSurface() override;
83
84 Maybe<SymbolLoader> GetSymbolLoader() const override;
85
86 virtual bool SwapBuffers() override;
87
88 virtual void SetDamage(const nsIntRegion& aDamageRegion) override;
89
90 GLint GetBufferAge() const override;
91
92 virtual void GetWSIInfo(nsCString* const out) const override;
93
GetEGLSurface()94 EGLSurface GetEGLSurface() const { return mSurface; }
95
96 bool HasExtBufferAge() const;
97 bool HasKhrPartialUpdate() const;
98
99 bool BindTex2DOffscreen(GLContext* aOffscreen);
100 void UnbindTex2DOffscreen(GLContext* aOffscreen);
101 void BindOffscreenFramebuffer();
102
103 void Destroy();
104
105 static RefPtr<GLContextEGL> CreateEGLPBufferOffscreenContext(
106 std::shared_ptr<EglDisplay>, const GLContextCreateDesc&,
107 const gfx::IntSize& size, nsACString* const out_FailureId);
108 static RefPtr<GLContextEGL> CreateEGLPBufferOffscreenContextImpl(
109 std::shared_ptr<EglDisplay>, const GLContextCreateDesc&,
110 const gfx::IntSize& size, bool aUseGles, nsACString* const out_FailureId);
111
112 static EGLSurface CreateEGLSurfaceForCompositorWidget(
113 widget::CompositorWidget* aCompositorWidget, const EGLConfig aConfig);
114
115 #ifdef MOZ_X11
116 static bool FindVisual(int* const out_visualId);
117 #endif
118
119 protected:
120 friend class GLContextProviderEGL;
121 friend class GLContextEGLFactory;
122
123 virtual void OnMarkDestroyed() override;
124
125 public:
126 const std::shared_ptr<EglDisplay> mEgl;
127 const EGLConfig mConfig;
128 const EGLContext mContext;
129
130 protected:
131 EGLSurface mSurface;
132 const EGLSurface mFallbackSurface;
133
134 EGLSurface mSurfaceOverride = EGL_NO_SURFACE;
135 bool mBound = false;
136
137 bool mIsPBuffer = false;
138 bool mIsDoubleBuffered = false;
139 bool mCanBindToTexture = false;
140 bool mShareWithEGLImage = false;
141 bool mOwnsContext = true;
142
143 nsIntRegion mDamageRegion;
144
145 static EGLSurface CreatePBufferSurfaceTryingPowerOfTwo(
146 EglDisplay&, EGLConfig, EGLenum bindToTextureFormat,
147 gfx::IntSize& pbsize);
148
149 static EGLSurface CreateWaylandBufferSurface(EglDisplay&, EGLConfig,
150 gfx::IntSize& pbsize);
151
152 public:
153 EGLSurface CreateCompatibleSurface(void* aWindow) const;
154 };
155
156 bool CreateConfig(EglDisplay&, EGLConfig* aConfig, int32_t aDepth,
157 bool aEnableDepthBuffer, bool aUseGles,
158 bool aAllowFallback = true);
159
160 } // namespace gl
161 } // namespace mozilla
162
163 #endif // GLCONTEXTEGL_H_
164