44843f462f
Summary: So far SharingPlatformContext was only used if the OpenGL context supports EGL_KHR_surfaceless_context. If not supported, KWin tried to create a context through the Wayland API. Unfortunately on hwcomposer platform this results in a crash as libhybris only supports the init of EGLDisplay for one native platform. This change tries to also use the SharingPlatformContext if there is an OpenGL context in general. It reuses the native EGLSurface created for the compositing scene and makes its own OpenGL context current on that surface, too. As KWin creates an FBO, it never renders to it, so it shouldn't matter at all. In order to prevent EGL_BAD_MATCH errors when making Qt's OpenGL context current also the EGLConfig from the scene is used to create the context. Test Plan: Tested on Nexus5 with qtvirtualkeyboard in KWin Reviewers: #kwin, #plasma_on_wayland Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D2231
112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#ifndef KWIN_ABSTRACT_EGL_BACKEND_H
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#define KWIN_ABSTRACT_EGL_BACKEND_H
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#include "scene_opengl.h"
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class QOpenGLFramebufferObject;
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namespace KWin
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{
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class KWIN_EXPORT AbstractEglBackend : public OpenGLBackend
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{
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public:
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virtual ~AbstractEglBackend();
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bool makeCurrent() override;
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void doneCurrent() override;
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EGLDisplay eglDisplay() const {
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return m_display;
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}
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EGLContext context() const {
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return m_context;
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}
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EGLSurface surface() const {
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return m_surface;
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}
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EGLConfig config() const {
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return m_config;
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}
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static void unbindWaylandDisplay();
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protected:
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AbstractEglBackend();
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void setEglDisplay(const EGLDisplay &display);
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void setSurface(const EGLSurface &surface) {
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m_surface = surface;
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}
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void setConfig(const EGLConfig &config) {
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m_config = config;
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}
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void cleanup();
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virtual void cleanupSurfaces();
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bool initEglAPI();
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void initKWinGL();
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void initBufferAge();
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void initClientExtensions();
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void initWayland();
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bool hasClientExtension(const QByteArray &ext) const;
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bool isOpenGLES() const;
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bool createContext();
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private:
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EGLDisplay m_display = EGL_NO_DISPLAY;
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EGLSurface m_surface = EGL_NO_SURFACE;
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EGLContext m_context = EGL_NO_CONTEXT;
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EGLConfig m_config = nullptr;
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QList<QByteArray> m_clientExtensions;
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};
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class KWIN_EXPORT AbstractEglTexture : public SceneOpenGL::TexturePrivate
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{
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public:
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virtual ~AbstractEglTexture();
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bool loadTexture(WindowPixmap *pixmap) override;
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void updateTexture(WindowPixmap *pixmap) override;
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OpenGLBackend *backend() override;
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protected:
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AbstractEglTexture(SceneOpenGL::Texture *texture, AbstractEglBackend *backend);
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EGLImageKHR image() const {
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return m_image;
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}
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void setImage(const EGLImageKHR &img) {
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m_image = img;
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}
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SceneOpenGL::Texture *texture() const {
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return q;
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}
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private:
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bool loadShmTexture(const QPointer<KWayland::Server::BufferInterface> &buffer);
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bool loadEglTexture(const QPointer<KWayland::Server::BufferInterface> &buffer);
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EGLImageKHR attach(const QPointer<KWayland::Server::BufferInterface> &buffer);
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bool updateFromFBO(const QSharedPointer<QOpenGLFramebufferObject> &fbo);
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SceneOpenGL::Texture *q;
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AbstractEglBackend *m_backend;
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EGLImageKHR m_image;
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};
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}
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#endif
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