f26eeb9706
Currently, the OpenGLBackend and the QPainterBackend have hooks to indicate the start and the end of compositing cycle, but in both cases, the hooks have different names. This change fixes that inconsistency.
98 lines
2.5 KiB
C++
98 lines
2.5 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 "egl_x11_backend.h"
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// kwin
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#include "screens.h"
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#include "x11windowed_backend.h"
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// kwin libs
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#include <kwinglplatform.h>
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namespace KWin
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{
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EglX11Backend::EglX11Backend(X11WindowedBackend *backend)
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: EglOnXBackend(backend->connection(), backend->display(), backend->rootWindow(), backend->screenNumer(), XCB_WINDOW_NONE)
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, m_backend(backend)
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{
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setX11TextureFromPixmapSupported(false);
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}
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EglX11Backend::~EglX11Backend() = default;
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void EglX11Backend::cleanupSurfaces()
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{
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for (auto it = m_surfaces.begin(); it != m_surfaces.end(); ++it) {
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eglDestroySurface(eglDisplay(), *it);
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}
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}
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bool EglX11Backend::createSurfaces()
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{
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for (int i = 0; i < screens()->count(); ++i) {
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EGLSurface s = createSurface(m_backend->windowForScreen(i));
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if (s == EGL_NO_SURFACE) {
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return false;
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}
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m_surfaces << s;
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}
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if (m_surfaces.isEmpty()) {
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return false;
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}
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setSurface(m_surfaces.first());
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return true;
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}
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void EglX11Backend::present()
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{
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for (int i = 0; i < screens()->count(); ++i) {
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EGLSurface s = m_surfaces.at(i);
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makeContextCurrent(s);
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setupViewport(i);
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presentSurface(s, screens()->geometry(i), screens()->geometry(i));
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}
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eglWaitGL();
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xcb_flush(m_backend->connection());
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}
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bool EglX11Backend::usesOverlayWindow() const
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{
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return false;
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}
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bool EglX11Backend::perScreenRendering() const
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{
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return true;
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}
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QRegion EglX11Backend::beginFrame(int screenId)
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{
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makeContextCurrent(m_surfaces.at(screenId));
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setupViewport(screenId);
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return screens()->geometry(screenId);
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}
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void EglX11Backend::setupViewport(int screenId)
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{
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// TODO: ensure the viewport is set correctly each time
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const QSize &overall = screens()->size();
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const QRect &v = screens()->geometry(screenId);
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// TODO: are the values correct?
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qreal scale = screens()->scale(screenId);
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glViewport(-v.x(), v.height() - overall.height() + v.y(), overall.width() * scale, overall.height() * scale);
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}
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void EglX11Backend::endFrame(int screenId, const QRegion &renderedRegion, const QRegion &damagedRegion)
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{
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Q_UNUSED(damagedRegion)
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const QRect &outputGeometry = screens()->geometry(screenId);
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presentSurface(m_surfaces.at(screenId), renderedRegion, outputGeometry);
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}
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} // namespace
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