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e3d81b0f91
In the past EGL only supported GLES, not OGL. This has not been true for a very long time, so lets support OGL context creation in the EGL backend. This allows e.g. the Wayland backend to use OGL contexts, which brings it on par with the X11/GLX backend. Differential Revision: https://phabricator.services.mozilla.com/D48096
149 lines
4.5 KiB
C++
149 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GLCONTEXTEGL_H_
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#define GLCONTEXTEGL_H_
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#include "GLContext.h"
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#include "GLLibraryEGL.h"
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#include "nsRegion.h"
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class gfxASurface;
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namespace mozilla {
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namespace widget {
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class CompositorWidget;
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} // namespace widget
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namespace gl {
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class GLContextEGL : public GLContext {
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friend class TextureImageEGL;
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static already_AddRefed<GLContextEGL> CreateGLContext(
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GLLibraryEGL*, CreateContextFlags flags, const SurfaceCaps& caps,
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bool isOffscreen, EGLConfig config, EGLSurface surface,
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const bool useGles, nsACString* const out_failureId);
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public:
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MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextEGL, override)
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GLContextEGL(GLLibraryEGL*, CreateContextFlags flags, const SurfaceCaps& caps,
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bool isOffscreen, EGLConfig config, EGLSurface surface,
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EGLContext context);
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~GLContextEGL();
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virtual GLContextType GetContextType() const override {
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return GLContextType::EGL;
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}
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static GLContextEGL* Cast(GLContext* gl) {
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MOZ_ASSERT(gl->GetContextType() == GLContextType::EGL);
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return static_cast<GLContextEGL*>(gl);
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}
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bool Init() override;
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virtual bool IsDoubleBuffered() const override { return mIsDoubleBuffered; }
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void SetIsDoubleBuffered(bool aIsDB) { mIsDoubleBuffered = aIsDB; }
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virtual bool IsANGLE() const override { return mEgl->IsANGLE(); }
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virtual bool IsWARP() const override { return mEgl->IsWARP(); }
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virtual bool BindTexImage() override;
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virtual bool ReleaseTexImage() override;
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void SetEGLSurfaceOverride(EGLSurface surf);
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EGLSurface GetEGLSurfaceOverride() { return mSurfaceOverride; }
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virtual bool MakeCurrentImpl() const override;
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virtual bool IsCurrentImpl() const override;
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virtual bool RenewSurface(widget::CompositorWidget* aWidget) override;
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virtual void ReleaseSurface() override;
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Maybe<SymbolLoader> GetSymbolLoader() const override;
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virtual bool SwapBuffers() override;
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virtual void SetDamage(const nsIntRegion& aDamageRegion) override;
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virtual void GetWSIInfo(nsCString* const out) const override;
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// hold a reference to the given surface
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// for the lifetime of this context.
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void HoldSurface(gfxASurface* aSurf);
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EGLSurface GetEGLSurface() const { return mSurface; }
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bool BindTex2DOffscreen(GLContext* aOffscreen);
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void UnbindTex2DOffscreen(GLContext* aOffscreen);
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void BindOffscreenFramebuffer();
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void Destroy();
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static already_AddRefed<GLContextEGL> CreateEGLPBufferOffscreenContext(
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CreateContextFlags flags, const gfx::IntSize& size,
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const SurfaceCaps& minCaps, nsACString* const out_FailureId);
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static already_AddRefed<GLContextEGL> CreateEGLPBufferOffscreenContextImpl(
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CreateContextFlags flags, const gfx::IntSize& size,
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const SurfaceCaps& minCaps, bool aUseGles,
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nsACString* const out_FailureId);
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#if defined(MOZ_WAYLAND) || defined(MOZ_WIDGET_ANDROID)
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static EGLSurface CreateEGLSurfaceForCompositorWidget(
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widget::CompositorWidget* aCompositorWidget, const EGLConfig aConfig);
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#endif
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protected:
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friend class GLContextProviderEGL;
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friend class GLContextEGLFactory;
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virtual void OnMarkDestroyed() override;
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public:
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const RefPtr<GLLibraryEGL> mEgl;
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const EGLConfig mConfig;
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const EGLContext mContext;
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protected:
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EGLSurface mSurface;
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const EGLSurface mFallbackSurface;
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EGLSurface mSurfaceOverride = EGL_NO_SURFACE;
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RefPtr<gfxASurface> mThebesSurface;
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bool mBound = false;
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bool mIsPBuffer = false;
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bool mIsDoubleBuffered = false;
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bool mCanBindToTexture = false;
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bool mShareWithEGLImage = false;
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bool mOwnsContext = true;
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nsIntRegion mDamageRegion;
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static EGLSurface CreatePBufferSurfaceTryingPowerOfTwo(
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GLLibraryEGL*, EGLConfig config, EGLenum bindToTextureFormat,
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gfx::IntSize& pbsize);
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#if defined(MOZ_WAYLAND)
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static EGLSurface CreateWaylandBufferSurface(GLLibraryEGL*, EGLConfig config,
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gfx::IntSize& pbsize);
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#endif
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#if defined(MOZ_WIDGET_ANDROID)
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public:
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EGLSurface CreateCompatibleSurface(void* aWindow);
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#endif // defined(MOZ_WIDGET_ANDROID)
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};
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bool CreateConfig(GLLibraryEGL* const egl, EGLConfig* aConfig, int32_t depth,
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bool aEnableDepthBuffer, bool aUseGles);
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} // namespace gl
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} // namespace mozilla
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#endif // GLCONTEXTEGL_H_
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