115 lines
3 KiB
C++
115 lines
3 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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SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "sharingplatformcontext.h"
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#include "offscreensurface.h"
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#include "window.h"
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#include "../../internal_client.h"
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#include "../../main.h"
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#include "../../platform.h"
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#include <logging.h>
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#include <QOpenGLFramebufferObject>
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#include <private/qopenglcontext_p.h>
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namespace KWin
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{
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namespace QPA
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{
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SharingPlatformContext::SharingPlatformContext(QOpenGLContext *context)
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: SharingPlatformContext(context, EGL_NO_SURFACE)
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{
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}
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SharingPlatformContext::SharingPlatformContext(QOpenGLContext *context, const EGLSurface &surface, EGLConfig config)
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: AbstractPlatformContext(context, kwinApp()->platform()->sceneEglDisplay(), config)
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, m_surface(surface)
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{
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create();
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}
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bool SharingPlatformContext::makeCurrent(QPlatformSurface *surface)
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{
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EGLSurface eglSurface;
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if (surface->surface()->surfaceClass() == QSurface::Window) {
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eglSurface = m_surface;
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} else {
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eglSurface = static_cast<OffscreenSurface *>(surface)->nativeHandle();
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}
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const bool ok = eglMakeCurrent(eglDisplay(), eglSurface, eglSurface, eglContext());
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if (!ok) {
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qCWarning(KWIN_QPA, "eglMakeCurrent failed: %x", eglGetError());
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return false;
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}
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if (surface->surface()->surfaceClass() == QSurface::Window) {
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// QOpenGLContextPrivate::setCurrentContext will be called after this
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// method returns, but that's too late, as we need a current context in
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// order to bind the content framebuffer object.
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QOpenGLContextPrivate::setCurrentContext(context());
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Window *window = static_cast<Window *>(surface);
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window->bindContentFBO();
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}
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return true;
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}
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bool SharingPlatformContext::isSharing() const
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{
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return false;
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}
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void SharingPlatformContext::swapBuffers(QPlatformSurface *surface)
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{
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if (surface->surface()->surfaceClass() == QSurface::Window) {
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Window *window = static_cast<Window *>(surface);
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InternalClient *client = window->client();
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if (!client) {
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return;
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}
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context()->makeCurrent(surface->surface());
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glFlush();
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client->present(window->swapFBO());
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window->bindContentFBO();
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}
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}
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GLuint SharingPlatformContext::defaultFramebufferObject(QPlatformSurface *surface) const
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{
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if (Window *window = dynamic_cast<Window*>(surface)) {
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const auto &fbo = window->contentFBO();
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if (!fbo.isNull()) {
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return fbo->handle();
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}
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qCDebug(KWIN_QPA) << "No default framebuffer object for internal window";
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}
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return 0;
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}
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void SharingPlatformContext::create()
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{
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if (!config()) {
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qCWarning(KWIN_QPA) << "Did not get an EGL config";
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return;
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}
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if (!bindApi()) {
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qCWarning(KWIN_QPA) << "Could not bind API.";
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return;
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}
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createContext(kwinApp()->platform()->sceneEglContext());
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}
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}
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}
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