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[qpa] Drop PlatformContextWayland which uses wayland egl for OpenGL

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Summary:
Using the Wayland protocol for OpenGL is no longer used or useful. KWin
internal windows only use OpenGL through QtQuick. We either have the
sharing context (KWin uses OpenGL for compositing) or we have the
QPainter compositor which also turns QtQuick to use software renderer.

Thus a situation where the Wayland platform context is useful doesn't
exist any more. Removing it helps getting the QPA plugin Wayland free.

Test Plan:
Run nested KWin triggering Outline once with OpenGL and once
with QPainter compositor.

Reviewers: #kwin

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D19012
This commit is contained in:
Martin Flöser 2019-02-14 17:45:03 +01:00
parent 47be4be020
commit e48d9df14f
7 changed files with 1 additions and 217 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
plugins/qpa/CMakeLists.txt
View file

@ -7,7 +7,6 @@ set(QPA_SOURCES
integration.cpp
main.cpp
nativeinterface.cpp
platformcontextwayland.cpp
platformcursor.cpp
screen.cpp
sharingplatformcontext.cpp
@ -34,10 +33,6 @@ target_link_libraries(KWinQpaPlugin
${FREETYPE_LIBRARIES}
)
if(HAVE_WAYLAND_EGL)
target_link_libraries(KWinQpaPlugin Wayland::Egl)
endif()
install(
TARGETS
KWinQpaPlugin

39
plugins/qpa/integration.cpp
View file

@ -22,7 +22,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "platform.h"
#include "backingstore.h"
#include "nativeinterface.h"
#include "platformcontextwayland.h"
#include "screen.h"
#include "sharingplatformcontext.h"
#include "window.h"
@ -192,14 +191,8 @@ QPlatformOpenGLContext *Integration::createPlatformOpenGLContext(QOpenGLContext
return new SharingPlatformContext(context, s, kwinApp()->platform()->sceneEglConfig());
}
}
if (m_eglDisplay == EGL_NO_DISPLAY) {
const_cast<Integration*>(this)->initEgl();
}
if (m_eglDisplay == EGL_NO_DISPLAY) {
return nullptr;
}
return new PlatformContextWayland(context, const_cast<Integration*>(this));
}
void Integration::initScreens()
{
@ -252,38 +245,6 @@ EGLDisplay Integration::eglDisplay() const
return m_eglDisplay;
}
void Integration::initEgl()
{
Q_ASSERT(m_eglDisplay == EGL_NO_DISPLAY);
// This variant uses Wayland as the EGL platform
qputenv("EGL_PLATFORM", "wayland");
m_eglDisplay = eglGetDisplay(waylandServer()->internalClientConection()->display());
if (m_eglDisplay == EGL_NO_DISPLAY) {
return;
}
// call eglInitialize in a thread to not block
QFuture<bool> future = QtConcurrent::run([this] () -> bool {
EGLint major, minor;
if (eglInitialize(m_eglDisplay, &major, &minor) == EGL_FALSE) {
return false;
}
EGLint error = eglGetError();
if (error != EGL_SUCCESS) {
return false;
}
return true;
});
// TODO: make this better
while (!future.isFinished()) {
waylandServer()->internalClientConection()->flush();
QCoreApplication::processEvents(QEventLoop::WaitForMoreEvents);
}
if (!future.result()) {
eglTerminate(m_eglDisplay);
m_eglDisplay = EGL_NO_DISPLAY;
}
}
QPlatformInputContext *Integration::inputContext() const
{
return m_inputContext.data();

1
plugins/qpa/integration.h
View file

@ -69,7 +69,6 @@ public:
private:
void initScreens();
void initEgl();
KWayland::Client::Shell *shell() const;
QPlatformFontDatabase *m_fontDb;

77
plugins/qpa/platformcontextwayland.cpp
View file

@ -1,77 +0,0 @@
/********************************************************************
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 "platformcontextwayland.h"
#include "integration.h"
#include "window.h"
namespace KWin
{
namespace QPA
{
PlatformContextWayland::PlatformContextWayland(QOpenGLContext *context, Integration *integration)
: AbstractPlatformContext(context, integration, integration->eglDisplay())
{
create();
}
bool PlatformContextWayland::makeCurrent(QPlatformSurface *surface)
{
Window *window = static_cast<Window*>(surface);
EGLSurface s = window->eglSurface();
if (s == EGL_NO_SURFACE) {
window->createEglSurface(eglDisplay(), config());
s = window->eglSurface();
if (s == EGL_NO_SURFACE) {
return false;
}
}
return eglMakeCurrent(eglDisplay(), s, s, eglContext());
}
bool PlatformContextWayland::isSharing() const
{
return false;
}
void PlatformContextWayland::swapBuffers(QPlatformSurface *surface)
{
Window *window = static_cast<Window*>(surface);
EGLSurface s = window->eglSurface();
if (s == EGL_NO_SURFACE) {
return;
}
eglSwapBuffers(eglDisplay(), s);
}
void PlatformContextWayland::create()
{
if (config() == 0) {
return;
}
if (!bindApi()) {
return;
}
createContext();
}
}
}

49
plugins/qpa/platformcontextwayland.h
View file

@ -1,49 +0,0 @@
/********************************************************************
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/>.
*********************************************************************/
#ifndef KWIN_QPA_PLATFORMCONTEXTWAYLAND_H
#define KWIN_QPA_PLATFORMCONTEXTWAYLAND_H
#include "abstractplatformcontext.h"
namespace KWin
{
namespace QPA
{
class Integration;
class PlatformContextWayland : public AbstractPlatformContext
{
public:
explicit PlatformContextWayland(QOpenGLContext *context, Integration *integration);
void swapBuffers(QPlatformSurface *surface) override;
bool makeCurrent(QPlatformSurface *surface) override;
bool isSharing() const override;
private:
void create();
};
}
}
#endif

29
plugins/qpa/window.cpp
View file

@ -17,7 +17,6 @@ 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/>.
*********************************************************************/
#define WL_EGL_PLATFORM 1
#include "integration.h"
#include "window.h"
#include "screens.h"
@ -57,14 +56,6 @@ Window::Window(QWindow *window, KWayland::Client::Surface *surface, KWayland::Cl
Window::~Window()
{
unmap();
if (m_eglSurface != EGL_NO_SURFACE) {
eglDestroySurface(m_integration->eglDisplay(), m_eglSurface);
}
#if HAVE_WAYLAND_EGL
if (m_eglWaylandWindow) {
wl_egl_window_destroy(m_eglWaylandWindow);
}
#endif
delete m_shellSurface;
delete m_surface;
}
@ -106,11 +97,6 @@ void Window::setGeometry(const QRect &rect)
m_resized = true;
}
}
#if HAVE_WAYLAND_EGL
if (m_eglWaylandWindow) {
wl_egl_window_resize(m_eglWaylandWindow, nativeSize.width(), nativeSize.height(), 0, 0);
}
#endif
QWindowSystemInterface::handleGeometryChange(window(), geometry());
}
@ -128,21 +114,6 @@ void Window::unmap()
}
}
void Window::createEglSurface(EGLDisplay dpy, EGLConfig config)
{
#if HAVE_WAYLAND_EGL
const QSize size = window()->size() * m_scale;
m_eglWaylandWindow = wl_egl_window_create(*m_surface, size.width(), size.height());
if (!m_eglWaylandWindow) {
return;
}
m_eglSurface = eglCreateWindowSurface(dpy, config, m_eglWaylandWindow, nullptr);
#else
Q_UNUSED(dpy)
Q_UNUSED(config)
#endif
}
void Window::bindContentFBO()
{
if (m_resized || !m_contentFBO) {

16
plugins/qpa/window.h
View file

@ -25,17 +25,9 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <fixx11h.h>
#include <qpa/qplatformwindow.h>
// wayland
#include <config-kwin.h>
#if HAVE_WAYLAND_EGL
#include <wayland-egl.h>
#endif
class QOpenGLFramebufferObject;
#if HAVE_WAYLAND_EGL
struct wl_egl_window;
#endif
namespace KWayland
{
@ -69,10 +61,6 @@ public:
KWayland::Client::Surface *surface() const {
return m_surface;
}
EGLSurface eglSurface() const {
return m_eglSurface;
}
void createEglSurface(EGLDisplay dpy, EGLConfig config);
int scale() const;
qreal devicePixelRatio() const override;
@ -90,13 +78,9 @@ private:
KWayland::Client::Surface *m_surface;
KWayland::Client::ShellSurface *m_shellSurface;
EGLSurface m_eglSurface = EGL_NO_SURFACE;
QSharedPointer<QOpenGLFramebufferObject> m_contentFBO;
bool m_resized = false;
ShellClient *m_shellClient = nullptr;
#if HAVE_WAYLAND_EGL
wl_egl_window *m_eglWaylandWindow = nullptr;
#endif
quint32 m_windowId;
const Integration *m_integration;
int m_scale = 1;