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
109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
/********************************************************************
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*********************************************************************/
|
|
#include "sharingplatformcontext.h"
|
|
#include "integration.h"
|
|
#include "window.h"
|
|
#include "../../platform.h"
|
|
#include "../../wayland_server.h"
|
|
#include "../../shell_client.h"
|
|
#include <logging.h>
|
|
|
|
#include <QOpenGLFramebufferObject>
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
namespace QPA
|
|
{
|
|
|
|
SharingPlatformContext::SharingPlatformContext(QOpenGLContext *context, Integration *integration)
|
|
: SharingPlatformContext(context, integration, EGL_NO_SURFACE)
|
|
{
|
|
}
|
|
|
|
SharingPlatformContext::SharingPlatformContext(QOpenGLContext *context, Integration *integration, const EGLSurface &surface, EGLConfig config)
|
|
: AbstractPlatformContext(context, integration, kwinApp()->platform()->sceneEglDisplay(), config)
|
|
, m_surface(surface)
|
|
{
|
|
create();
|
|
}
|
|
|
|
bool SharingPlatformContext::makeCurrent(QPlatformSurface *surface)
|
|
{
|
|
Window *window = static_cast<Window*>(surface);
|
|
if (eglMakeCurrent(eglDisplay(), m_surface, m_surface, context())) {
|
|
window->bindContentFBO();
|
|
return true;
|
|
}
|
|
qCWarning(KWIN_QPA) << "Failed to make context current";
|
|
EGLint error = eglGetError();
|
|
if (error != EGL_SUCCESS) {
|
|
qCWarning(KWIN_QPA) << "EGL error code: " << error;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool SharingPlatformContext::isSharing() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
void SharingPlatformContext::swapBuffers(QPlatformSurface *surface)
|
|
{
|
|
Window *window = static_cast<Window*>(surface);
|
|
auto c = window->shellClient();
|
|
if (!c) {
|
|
qCDebug(KWIN_QPA) << "SwapBuffers called but there is no ShellClient";
|
|
return;
|
|
}
|
|
makeCurrent(surface);
|
|
glFlush();
|
|
c->setInternalFramebufferObject(window->swapFBO());
|
|
window->bindContentFBO();
|
|
}
|
|
|
|
GLuint SharingPlatformContext::defaultFramebufferObject(QPlatformSurface *surface) const
|
|
{
|
|
if (Window *window = dynamic_cast<Window*>(surface)) {
|
|
const auto &fbo = window->contentFBO();
|
|
if (!fbo.isNull()) {
|
|
return fbo->handle();
|
|
}
|
|
}
|
|
qCDebug(KWIN_QPA) << "No default framebuffer object for internal window";
|
|
return 0;
|
|
}
|
|
|
|
void SharingPlatformContext::create()
|
|
{
|
|
if (config() == 0) {
|
|
qCWarning(KWIN_QPA) << "Did not get an EGL config";
|
|
return;
|
|
}
|
|
if (!bindApi()) {
|
|
qCWarning(KWIN_QPA) << "Could not bind API.";
|
|
return;
|
|
}
|
|
createContext(kwinApp()->platform()->sceneEglContext());
|
|
}
|
|
|
|
}
|
|
}
|