/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- * 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 IN_GL_CONTEXT_PROVIDER_H # error GLContextProviderImpl.h must only be included from GLContextProvider.h #endif
#ifndef GL_CONTEXT_PROVIDER_NAME # error GL_CONTEXT_PROVIDER_NAME notdefined #endif #ifdefined(MOZ_WIDGET_ANDROID) # include "GLTypes.h"// for EGLSurface and EGLConfig #endif// defined(MOZ_WIDGET_ANDROID)
class GL_CONTEXT_PROVIDER_NAME { public: /** * Create a context that renders to the surface of the widget represented by * the compositor widget that is passed in. The context is always created * with an RGB pixel format, with no alpha, depth or stencil. * If any of those features are needed, either use a framebuffer, or * use CreateOffscreen. * * This context will attempt to share resources with all other window * contexts. As such, it's critical that resources allocated that are not * needed by other contexts be deleted before the context is destroyed. * * The GetSharedContext() method will return non-null if sharing * was successful. * * Note: a context created for a widget /must not/ hold a strong * reference to the widget; otherwise a cycle can be created through * a GL layer manager. * * @param aCompositorWidget Widget whose surface to create a context for * @param aForceAccelerated true if only accelerated contexts are allowed * * @return Context to use for the window
*/ static already_AddRefed<GLContext> CreateForCompositorWidget(
mozilla::widget::CompositorWidget* aCompositorWidget, bool aHardwareWebRender, bool aForceAccelerated);
/// Just create a context. We'll add offscreen stuff ourselves. static already_AddRefed<GLContext> CreateHeadless( const GLContextCreateDesc&, nsACString* const out_failureId);
/** * Get a pointer to the global context, creating it if it doesn't exist.
*/ static GLContext* GetGlobalContext();
/** * Free any resources held by this Context Provider.
*/ staticvoid Shutdown();
};
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