997 lines
32 KiB
C++
997 lines
32 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 "drm_output.h"
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#include "drm_backend.h"
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#include "drm_object_crtc.h"
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#include "drm_object_connector.h"
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#include "composite.h"
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#include "cursor.h"
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#include "logging.h"
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#include "main.h"
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#include "renderloop.h"
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#include "screens.h"
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#include "session.h"
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#include "wayland_server.h"
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// KWayland
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#include <KWaylandServer/output_interface.h>
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// KF5
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#include <KConfigGroup>
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#include <KLocalizedString>
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#include <KSharedConfig>
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// Qt
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#include <QMatrix4x4>
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#include <QCryptographicHash>
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#include <QPainter>
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// c++
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#include <cerrno>
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// drm
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#include <xf86drm.h>
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#include <libdrm/drm_mode.h>
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#include "drm_gpu.h"
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namespace KWin
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{
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DrmOutput::DrmOutput(DrmBackend *backend, DrmGpu *gpu)
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: AbstractWaylandOutput(backend)
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, m_backend(backend)
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, m_gpu(gpu)
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, m_renderLoop(new RenderLoop(this))
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{
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}
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DrmOutput::~DrmOutput()
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{
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Q_ASSERT(!m_pageFlipPending);
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teardown();
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}
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RenderLoop *DrmOutput::renderLoop() const
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{
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return m_renderLoop;
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}
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void DrmOutput::teardown()
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{
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if (m_deleted) {
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return;
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}
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m_deleted = true;
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hideCursor();
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m_crtc->blank(this);
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if (m_primaryPlane) {
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// TODO: when having multiple planes, also clean up these
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m_primaryPlane->setCurrent(nullptr);
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}
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m_cursor[0].reset(nullptr);
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m_cursor[1].reset(nullptr);
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if (!m_pageFlipPending) {
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deleteLater();
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} //else will be deleted in the page flip handler
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//this is needed so that the pageflipcallback handle isn't deleted
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}
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void DrmOutput::releaseGbm()
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{
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if (const auto &b = m_crtc->current()) {
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b->releaseGbm();
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}
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if (m_primaryPlane && m_primaryPlane->current()) {
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m_primaryPlane->current()->releaseGbm();
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}
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}
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bool DrmOutput::hideCursor()
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{
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return drmModeSetCursor(m_gpu->fd(), m_crtc->id(), 0, 0, 0) == 0;
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}
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bool DrmOutput::showCursor(DrmDumbBuffer *c)
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{
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const QSize &s = c->size();
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return drmModeSetCursor(m_gpu->fd(), m_crtc->id(), c->handle(), s.width(), s.height()) == 0;
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}
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bool DrmOutput::showCursor()
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{
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if (m_deleted) {
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return false;
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}
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const bool ret = showCursor(m_cursor[m_cursorIndex].data());
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if (!ret) {
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qCDebug(KWIN_DRM) << "DrmOutput::showCursor(DrmDumbBuffer) failed";
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return ret;
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}
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if (m_hasNewCursor) {
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m_cursorIndex = (m_cursorIndex + 1) % 2;
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m_hasNewCursor = false;
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}
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return ret;
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}
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static bool isCursorSpriteCompatible(const QImage *buffer, const QImage *sprite)
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{
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// Note that we need compare the rects in the device independent pixels because the
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// buffer and the cursor sprite image may have different scale factors.
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const QRect bufferRect(QPoint(0, 0), buffer->size() / buffer->devicePixelRatio());
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const QRect spriteRect(QPoint(0, 0), sprite->size() / sprite->devicePixelRatio());
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return bufferRect.contains(spriteRect);
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}
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bool DrmOutput::updateCursor()
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{
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if (m_deleted) {
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return false;
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}
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const Cursor *cursor = Cursors::self()->currentCursor();
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const QImage cursorImage = cursor->image();
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if (cursorImage.isNull()) {
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return false;
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}
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QImage *c = m_cursor[m_cursorIndex]->image();
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c->setDevicePixelRatio(scale());
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if (!isCursorSpriteCompatible(c, &cursorImage)) {
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// If the cursor image is too big, fall back to rendering the software cursor.
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return false;
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}
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m_hasNewCursor = true;
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c->fill(Qt::transparent);
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QPainter p;
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p.begin(c);
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p.setWorldTransform(logicalToNativeMatrix(cursor->rect(), 1, transform()).toTransform());
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p.drawImage(QPoint(0, 0), cursorImage);
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p.end();
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return true;
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}
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void DrmOutput::moveCursor()
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{
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Cursor *cursor = Cursors::self()->currentCursor();
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const QMatrix4x4 hotspotMatrix = logicalToNativeMatrix(cursor->rect(), scale(), transform());
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const QMatrix4x4 monitorMatrix = logicalToNativeMatrix(geometry(), scale(), transform());
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QPoint pos = monitorMatrix.map(cursor->pos());
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pos -= hotspotMatrix.map(cursor->hotspot());
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drmModeMoveCursor(m_gpu->fd(), m_crtc->id(), pos.x(), pos.y());
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}
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static QHash<int, QByteArray> s_connectorNames = {
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{DRM_MODE_CONNECTOR_Unknown, QByteArrayLiteral("Unknown")},
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{DRM_MODE_CONNECTOR_VGA, QByteArrayLiteral("VGA")},
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{DRM_MODE_CONNECTOR_DVII, QByteArrayLiteral("DVI-I")},
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{DRM_MODE_CONNECTOR_DVID, QByteArrayLiteral("DVI-D")},
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{DRM_MODE_CONNECTOR_DVIA, QByteArrayLiteral("DVI-A")},
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{DRM_MODE_CONNECTOR_Composite, QByteArrayLiteral("Composite")},
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{DRM_MODE_CONNECTOR_SVIDEO, QByteArrayLiteral("SVIDEO")},
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{DRM_MODE_CONNECTOR_LVDS, QByteArrayLiteral("LVDS")},
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{DRM_MODE_CONNECTOR_Component, QByteArrayLiteral("Component")},
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{DRM_MODE_CONNECTOR_9PinDIN, QByteArrayLiteral("DIN")},
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{DRM_MODE_CONNECTOR_DisplayPort, QByteArrayLiteral("DP")},
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{DRM_MODE_CONNECTOR_HDMIA, QByteArrayLiteral("HDMI-A")},
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{DRM_MODE_CONNECTOR_HDMIB, QByteArrayLiteral("HDMI-B")},
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{DRM_MODE_CONNECTOR_TV, QByteArrayLiteral("TV")},
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{DRM_MODE_CONNECTOR_eDP, QByteArrayLiteral("eDP")},
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{DRM_MODE_CONNECTOR_VIRTUAL, QByteArrayLiteral("Virtual")},
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{DRM_MODE_CONNECTOR_DSI, QByteArrayLiteral("DSI")},
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#ifdef DRM_MODE_CONNECTOR_DPI
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{DRM_MODE_CONNECTOR_DPI, QByteArrayLiteral("DPI")},
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#endif
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};
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namespace {
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quint64 refreshRateForMode(_drmModeModeInfo *m)
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{
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// Calculate higher precision (mHz) refresh rate
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// logic based on Weston, see compositor-drm.c
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quint64 refreshRate = (m->clock * 1000000LL / m->htotal + m->vtotal / 2) / m->vtotal;
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if (m->flags & DRM_MODE_FLAG_INTERLACE) {
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refreshRate *= 2;
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}
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if (m->flags & DRM_MODE_FLAG_DBLSCAN) {
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refreshRate /= 2;
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}
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if (m->vscan > 1) {
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refreshRate /= m->vscan;
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}
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return refreshRate;
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}
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}
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bool DrmOutput::init(drmModeConnector *connector)
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{
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initEdid(connector);
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initDpms(connector);
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initUuid();
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if (m_gpu->atomicModeSetting() && !m_primaryPlane) {
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return false;
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}
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setInternal(connector->connector_type == DRM_MODE_CONNECTOR_LVDS || connector->connector_type == DRM_MODE_CONNECTOR_eDP
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|| connector->connector_type == DRM_MODE_CONNECTOR_DSI);
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setDpmsSupported(true);
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initOutputDevice(connector);
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if (!m_gpu->atomicModeSetting() && !m_crtc->blank(this)) {
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// We use legacy mode and the initial output blank failed.
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return false;
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}
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updateDpms(KWaylandServer::OutputInterface::DpmsMode::On);
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return true;
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}
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void DrmOutput::initUuid()
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{
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QCryptographicHash hash(QCryptographicHash::Md5);
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hash.addData(QByteArray::number(m_conn->id()));
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hash.addData(m_edid.eisaId());
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hash.addData(m_edid.monitorName());
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hash.addData(m_edid.serialNumber());
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m_uuid = hash.result().toHex().left(10);
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}
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void DrmOutput::initOutputDevice(drmModeConnector *connector)
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{
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QString manufacturer;
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if (!m_edid.vendor().isEmpty()) {
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manufacturer = QString::fromLatin1(m_edid.vendor());
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} else if (!m_edid.eisaId().isEmpty()) {
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manufacturer = QString::fromLatin1(m_edid.eisaId());
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}
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QString connectorName = s_connectorNames.value(connector->connector_type, QByteArrayLiteral("Unknown")) + QStringLiteral("-") + QString::number(connector->connector_type_id);
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QString modelName;
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if (!m_edid.monitorName().isEmpty()) {
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QString m = QString::fromLatin1(m_edid.monitorName());
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if (!m_edid.serialNumber().isEmpty()) {
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m.append('/');
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m.append(QString::fromLatin1(m_edid.serialNumber()));
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}
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modelName = m;
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} else if (!m_edid.serialNumber().isEmpty()) {
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modelName = QString::fromLatin1(m_edid.serialNumber());
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} else {
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modelName = i18n("unknown");
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}
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const QString model = connectorName + QStringLiteral("-") + modelName;
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// read in mode information
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QVector<KWaylandServer::OutputDeviceInterface::Mode> modes;
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for (int i = 0; i < connector->count_modes; ++i) {
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// TODO: in AMS here we could read and store for later every mode's blob_id
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// would simplify isCurrentMode(..) and presentAtomically(..) in case of mode set
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auto *m = &connector->modes[i];
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KWaylandServer::OutputDeviceInterface::ModeFlags deviceflags;
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if (isCurrentMode(m)) {
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deviceflags |= KWaylandServer::OutputDeviceInterface::ModeFlag::Current;
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}
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if (m->type & DRM_MODE_TYPE_PREFERRED) {
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deviceflags |= KWaylandServer::OutputDeviceInterface::ModeFlag::Preferred;
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}
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KWaylandServer::OutputDeviceInterface::Mode mode;
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mode.id = i;
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mode.size = QSize(m->hdisplay, m->vdisplay);
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mode.flags = deviceflags;
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mode.refreshRate = refreshRateForMode(m);
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modes << mode;
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}
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QSize physicalSize = !m_edid.physicalSize().isEmpty() ? m_edid.physicalSize() : QSize(connector->mmWidth, connector->mmHeight);
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// the size might be completely borked. E.g. Samsung SyncMaster 2494HS reports 160x90 while in truth it's 520x292
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// as this information is used to calculate DPI info, it's going to result in everything being huge
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const QByteArray unknown = QByteArrayLiteral("unknown");
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KConfigGroup group = kwinApp()->config()->group("EdidOverwrite").group(m_edid.eisaId().isEmpty() ? unknown : m_edid.eisaId())
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.group(m_edid.monitorName().isEmpty() ? unknown : m_edid.monitorName())
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.group(m_edid.serialNumber().isEmpty() ? unknown : m_edid.serialNumber());
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if (group.hasKey("PhysicalSize")) {
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const QSize overwriteSize = group.readEntry("PhysicalSize", physicalSize);
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qCWarning(KWIN_DRM) << "Overwriting monitor physical size for" << m_edid.eisaId() << "/" << m_edid.monitorName() << "/" << m_edid.serialNumber() << " from " << physicalSize << "to " << overwriteSize;
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physicalSize = overwriteSize;
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}
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setName(connectorName);
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initInterfaces(model, manufacturer, m_uuid, physicalSize, modes, m_edid.raw());
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}
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bool DrmOutput::isCurrentMode(const drmModeModeInfo *mode) const
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{
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return mode->clock == m_mode.clock
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&& mode->hdisplay == m_mode.hdisplay
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&& mode->hsync_start == m_mode.hsync_start
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&& mode->hsync_end == m_mode.hsync_end
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&& mode->htotal == m_mode.htotal
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&& mode->hskew == m_mode.hskew
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&& mode->vdisplay == m_mode.vdisplay
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&& mode->vsync_start == m_mode.vsync_start
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&& mode->vsync_end == m_mode.vsync_end
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&& mode->vtotal == m_mode.vtotal
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&& mode->vscan == m_mode.vscan
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&& mode->vrefresh == m_mode.vrefresh
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&& mode->flags == m_mode.flags
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&& mode->type == m_mode.type
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&& qstrcmp(mode->name, m_mode.name) == 0;
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}
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void DrmOutput::initEdid(drmModeConnector *connector)
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{
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DrmScopedPointer<drmModePropertyBlobRes> edid;
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for (int i = 0; i < connector->count_props; ++i) {
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DrmScopedPointer<drmModePropertyRes> property(drmModeGetProperty(m_gpu->fd(), connector->props[i]));
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if (!property) {
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continue;
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}
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if ((property->flags & DRM_MODE_PROP_BLOB) && qstrcmp(property->name, "EDID") == 0) {
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edid.reset(drmModeGetPropertyBlob(m_gpu->fd(), connector->prop_values[i]));
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}
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}
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if (!edid) {
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qCWarning(KWIN_DRM) << "Could not find edid for connector" << connector << connector->connector_id;
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return;
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}
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m_edid = Edid(edid->data, edid->length);
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if (!m_edid.isValid()) {
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qCWarning(KWIN_DRM, "Couldn't parse EDID for connector with id %d", m_conn->id());
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}
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}
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bool DrmOutput::initCursor(const QSize &cursorSize)
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{
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auto createCursor = [this, cursorSize] (int index) {
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m_cursor[index].reset(new DrmDumbBuffer(m_gpu, cursorSize));
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if (!m_cursor[index]->map(QImage::Format_ARGB32_Premultiplied)) {
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return false;
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}
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return true;
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};
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if (!createCursor(0) || !createCursor(1)) {
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return false;
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}
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return true;
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}
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void DrmOutput::initDpms(drmModeConnector *connector)
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{
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for (int i = 0; i < connector->count_props; ++i) {
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DrmScopedPointer<drmModePropertyRes> property(drmModeGetProperty(m_gpu->fd(), connector->props[i]));
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if (!property) {
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continue;
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}
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if (qstrcmp(property->name, "DPMS") == 0) {
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m_dpms.swap(property);
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break;
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}
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}
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}
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void DrmOutput::updateEnablement(bool enable)
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{
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if (enable) {
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m_dpmsModePending = DpmsMode::On;
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if (m_gpu->atomicModeSetting()) {
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atomicEnable();
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} else {
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if (dpmsLegacyApply()) {
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m_backend->enableOutput(this, true);
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}
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}
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} else {
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m_dpmsModePending = DpmsMode::Off;
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if (m_gpu->atomicModeSetting()) {
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atomicDisable();
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} else {
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if (dpmsLegacyApply()) {
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m_backend->enableOutput(this, false);
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}
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}
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}
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}
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void DrmOutput::atomicEnable()
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{
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m_modesetRequested = true;
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if (m_atomicOffPending) {
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Q_ASSERT(m_pageFlipPending);
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m_atomicOffPending = false;
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}
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m_backend->enableOutput(this, true);
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if (Compositor *compositor = Compositor::self()) {
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compositor->addRepaintFull();
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}
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}
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void DrmOutput::atomicDisable()
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{
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m_modesetRequested = true;
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m_backend->enableOutput(this, false);
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m_atomicOffPending = true;
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if (!m_pageFlipPending) {
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dpmsAtomicOff();
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}
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}
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static DrmOutput::DpmsMode fromWaylandDpmsMode(KWaylandServer::OutputInterface::DpmsMode wlMode)
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{
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using namespace KWaylandServer;
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switch (wlMode) {
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case OutputInterface::DpmsMode::On:
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return DrmOutput::DpmsMode::On;
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case OutputInterface::DpmsMode::Standby:
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return DrmOutput::DpmsMode::Standby;
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case OutputInterface::DpmsMode::Suspend:
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return DrmOutput::DpmsMode::Suspend;
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case OutputInterface::DpmsMode::Off:
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return DrmOutput::DpmsMode::Off;
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default:
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Q_UNREACHABLE();
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}
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}
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static KWaylandServer::OutputInterface::DpmsMode toWaylandDpmsMode(DrmOutput::DpmsMode mode)
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{
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using namespace KWaylandServer;
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switch (mode) {
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case DrmOutput::DpmsMode::On:
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return OutputInterface::DpmsMode::On;
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case DrmOutput::DpmsMode::Standby:
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return OutputInterface::DpmsMode::Standby;
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case DrmOutput::DpmsMode::Suspend:
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return OutputInterface::DpmsMode::Suspend;
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case DrmOutput::DpmsMode::Off:
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return OutputInterface::DpmsMode::Off;
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default:
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Q_UNREACHABLE();
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}
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}
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void DrmOutput::updateDpms(KWaylandServer::OutputInterface::DpmsMode mode)
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{
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if (m_dpms.isNull() || !isEnabled()) {
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return;
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}
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const auto drmMode = fromWaylandDpmsMode(mode);
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if (drmMode == m_dpmsModePending) {
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qCDebug(KWIN_DRM) << "New DPMS mode equals old mode. DPMS unchanged.";
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waylandOutput()->setDpmsMode(mode);
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return;
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}
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m_dpmsModePending = drmMode;
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if (m_gpu->atomicModeSetting()) {
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m_modesetRequested = true;
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if (drmMode == DpmsMode::On) {
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if (m_atomicOffPending) {
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Q_ASSERT(m_pageFlipPending);
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m_atomicOffPending = false;
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|
}
|
|
dpmsFinishOn();
|
|
} else {
|
|
m_atomicOffPending = true;
|
|
if (!m_pageFlipPending) {
|
|
dpmsAtomicOff();
|
|
}
|
|
}
|
|
} else {
|
|
dpmsLegacyApply();
|
|
}
|
|
}
|
|
|
|
void DrmOutput::dpmsFinishOn()
|
|
{
|
|
qCDebug(KWIN_DRM) << "DPMS mode set for output" << m_crtc->id() << "to On.";
|
|
|
|
waylandOutput()->setDpmsMode(toWaylandDpmsMode(DpmsMode::On));
|
|
|
|
m_backend->checkOutputsAreOn();
|
|
m_crtc->blank(this);
|
|
m_renderLoop->uninhibit();
|
|
if (Compositor *compositor = Compositor::self()) {
|
|
compositor->addRepaintFull();
|
|
}
|
|
}
|
|
|
|
void DrmOutput::dpmsFinishOff()
|
|
{
|
|
qCDebug(KWIN_DRM) << "DPMS mode set for output" << m_crtc->id() << "to Off.";
|
|
|
|
if (isEnabled()) {
|
|
waylandOutput()->setDpmsMode(toWaylandDpmsMode(m_dpmsModePending));
|
|
m_backend->createDpmsFilter();
|
|
} else {
|
|
waylandOutput()->setDpmsMode(toWaylandDpmsMode(DpmsMode::Off));
|
|
}
|
|
m_renderLoop->inhibit();
|
|
}
|
|
|
|
bool DrmOutput::dpmsLegacyApply()
|
|
{
|
|
if (drmModeConnectorSetProperty(m_gpu->fd(), m_conn->id(),
|
|
m_dpms->prop_id, uint64_t(m_dpmsModePending)) < 0) {
|
|
m_dpmsModePending = m_dpmsMode;
|
|
qCWarning(KWIN_DRM) << "Setting DPMS failed";
|
|
return false;
|
|
}
|
|
if (m_dpmsModePending == DpmsMode::On) {
|
|
dpmsFinishOn();
|
|
} else {
|
|
dpmsFinishOff();
|
|
}
|
|
m_dpmsMode = m_dpmsModePending;
|
|
return true;
|
|
}
|
|
|
|
DrmPlane::Transformations outputToPlaneTransform(DrmOutput::Transform transform)
|
|
{
|
|
using OutTrans = DrmOutput::Transform;
|
|
using PlaneTrans = DrmPlane::Transformation;
|
|
|
|
// TODO: Do we want to support reflections (flips)?
|
|
|
|
switch (transform) {
|
|
case OutTrans::Normal:
|
|
case OutTrans::Flipped:
|
|
return PlaneTrans::Rotate0;
|
|
case OutTrans::Rotated90:
|
|
case OutTrans::Flipped90:
|
|
return PlaneTrans::Rotate90;
|
|
case OutTrans::Rotated180:
|
|
case OutTrans::Flipped180:
|
|
return PlaneTrans::Rotate180;
|
|
case OutTrans::Rotated270:
|
|
case OutTrans::Flipped270:
|
|
return PlaneTrans::Rotate270;
|
|
default:
|
|
Q_UNREACHABLE();
|
|
}
|
|
}
|
|
|
|
bool DrmOutput::hardwareTransforms() const
|
|
{
|
|
if (!m_primaryPlane) {
|
|
return false;
|
|
}
|
|
return m_primaryPlane->transformation() == outputToPlaneTransform(transform());
|
|
}
|
|
|
|
void DrmOutput::updateTransform(Transform transform)
|
|
{
|
|
const auto planeTransform = outputToPlaneTransform(transform);
|
|
|
|
if (m_primaryPlane) {
|
|
// At the moment we have to exclude hardware transforms for vertical buffers.
|
|
// For that we need to support other buffers and graceful fallback from atomic tests.
|
|
// Reason is that standard linear buffers are not suitable.
|
|
const bool isPortrait = transform == Transform::Rotated90
|
|
|| transform == Transform::Flipped90
|
|
|| transform == Transform::Rotated270
|
|
|| transform == Transform::Flipped270;
|
|
|
|
if (!qEnvironmentVariableIsSet("KWIN_DRM_SW_ROTATIONS_ONLY") &&
|
|
(m_primaryPlane->supportedTransformations() & planeTransform) &&
|
|
!isPortrait) {
|
|
m_primaryPlane->setTransformation(planeTransform);
|
|
} else {
|
|
m_primaryPlane->setTransformation(DrmPlane::Transformation::Rotate0);
|
|
}
|
|
}
|
|
m_modesetRequested = true;
|
|
|
|
// show cursor only if is enabled, i.e if pointer device is presentP
|
|
if (!m_backend->isCursorHidden() && !m_backend->usesSoftwareCursor()) {
|
|
// the cursor might need to get rotated
|
|
updateCursor();
|
|
showCursor();
|
|
}
|
|
}
|
|
|
|
void DrmOutput::updateMode(uint32_t width, uint32_t height, uint32_t refreshRate)
|
|
{
|
|
if (m_mode.hdisplay == width && m_mode.vdisplay == height && m_mode.vrefresh == refreshRate) {
|
|
return;
|
|
}
|
|
// try to find a fitting mode
|
|
DrmScopedPointer<drmModeConnector> connector(drmModeGetConnectorCurrent(m_gpu->fd(), m_conn->id()));
|
|
for (int i = 0; i < connector->count_modes; i++) {
|
|
auto mode = connector->modes[i];
|
|
if (mode.hdisplay == width && mode.vdisplay == height && mode.vrefresh == refreshRate) {
|
|
updateMode(i);
|
|
return;
|
|
}
|
|
}
|
|
qCWarning(KWIN_DRM, "Could not find a fitting mode with size=%dx%d and refresh rate %d for output %s",
|
|
width, height, refreshRate, uuid().constData());
|
|
}
|
|
|
|
void DrmOutput::updateMode(int modeIndex)
|
|
{
|
|
// get all modes on the connector
|
|
DrmScopedPointer<drmModeConnector> connector(drmModeGetConnector(m_gpu->fd(), m_conn->id()));
|
|
if (connector->count_modes <= modeIndex) {
|
|
// TODO: error?
|
|
return;
|
|
}
|
|
if (isCurrentMode(&connector->modes[modeIndex])) {
|
|
// nothing to do
|
|
return;
|
|
}
|
|
m_mode = connector->modes[modeIndex];
|
|
m_modesetRequested = true;
|
|
setWaylandMode();
|
|
}
|
|
|
|
void DrmOutput::setWaylandMode()
|
|
{
|
|
AbstractWaylandOutput::setWaylandMode(QSize(m_mode.hdisplay, m_mode.vdisplay),
|
|
refreshRateForMode(&m_mode));
|
|
}
|
|
|
|
void DrmOutput::pageFlipped()
|
|
{
|
|
// In legacy mode we might get a page flip through a blank.
|
|
Q_ASSERT(m_pageFlipPending || !m_gpu->atomicModeSetting());
|
|
m_pageFlipPending = false;
|
|
|
|
if (m_deleted) {
|
|
deleteLater();
|
|
return;
|
|
}
|
|
|
|
if (!m_crtc) {
|
|
return;
|
|
}
|
|
if (m_gpu->atomicModeSetting()) {
|
|
if (!m_primaryPlane->next()) {
|
|
if (m_primaryPlane->current()) {
|
|
m_primaryPlane->current()->releaseGbm();
|
|
}
|
|
return;
|
|
}
|
|
for (DrmPlane *p : m_nextPlanesFlipList) {
|
|
p->flipBuffer();
|
|
}
|
|
m_nextPlanesFlipList.clear();
|
|
} else {
|
|
if (!m_crtc->next()) {
|
|
// on manual vt switch
|
|
if (const auto &b = m_crtc->current()) {
|
|
b->releaseGbm();
|
|
}
|
|
}
|
|
m_crtc->flipBuffer();
|
|
}
|
|
|
|
if (m_atomicOffPending) {
|
|
dpmsAtomicOff();
|
|
}
|
|
}
|
|
|
|
bool DrmOutput::present(const QSharedPointer<DrmBuffer> &buffer)
|
|
{
|
|
if (!buffer || buffer->bufferId() == 0) {
|
|
return false;
|
|
}
|
|
if (m_dpmsModePending != DpmsMode::On) {
|
|
return false;
|
|
}
|
|
return m_gpu->atomicModeSetting() ? presentAtomically(buffer) : presentLegacy(buffer);
|
|
}
|
|
|
|
bool DrmOutput::dpmsAtomicOff()
|
|
{
|
|
m_atomicOffPending = false;
|
|
|
|
// TODO: With multiple planes: deactivate all of them here
|
|
m_primaryPlane->setNext(nullptr);
|
|
m_nextPlanesFlipList << m_primaryPlane;
|
|
|
|
if (!doAtomicCommit(AtomicCommitMode::Test)) {
|
|
qCDebug(KWIN_DRM) << "Atomic test commit to Dpms Off failed. Aborting.";
|
|
return false;
|
|
}
|
|
if (!doAtomicCommit(AtomicCommitMode::Real)) {
|
|
qCDebug(KWIN_DRM) << "Atomic commit to Dpms Off failed. This should have never happened! Aborting.";
|
|
return false;
|
|
}
|
|
m_nextPlanesFlipList.clear();
|
|
dpmsFinishOff();
|
|
|
|
return true;
|
|
}
|
|
|
|
bool DrmOutput::presentAtomically(const QSharedPointer<DrmBuffer> &buffer)
|
|
{
|
|
if (!m_backend->session()->isActive()) {
|
|
qCWarning(KWIN_DRM) << "Refusing to present output because session is inactive";
|
|
return false;
|
|
}
|
|
|
|
if (m_pageFlipPending) {
|
|
qCWarning(KWIN_DRM) << "Page not yet flipped.";
|
|
return false;
|
|
}
|
|
|
|
#if HAVE_EGL_STREAMS
|
|
if (m_gpu->useEglStreams() && !m_modesetRequested) {
|
|
// EglStreamBackend queues normal page flips through EGL,
|
|
// modesets are still performed through DRM-KMS
|
|
m_pageFlipPending = true;
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
m_primaryPlane->setNext(buffer);
|
|
m_nextPlanesFlipList << m_primaryPlane;
|
|
|
|
if (!doAtomicCommit(AtomicCommitMode::Test)) {
|
|
//TODO: When we use planes for layered rendering, fallback to renderer instead. Also for direct scanout?
|
|
//TODO: Probably should undo setNext and reset the flip list
|
|
qCDebug(KWIN_DRM) << "Atomic test commit failed. Aborting present.";
|
|
// go back to previous state
|
|
if (m_lastWorkingState.valid) {
|
|
m_mode = m_lastWorkingState.mode;
|
|
setTransform(m_lastWorkingState.transform);
|
|
setGlobalPos(m_lastWorkingState.globalPos);
|
|
if (m_primaryPlane) {
|
|
m_primaryPlane->setTransformation(m_lastWorkingState.planeTransformations);
|
|
}
|
|
m_modesetRequested = true;
|
|
if (!m_backend->isCursorHidden()) {
|
|
// the cursor might need to get rotated
|
|
updateCursor();
|
|
showCursor();
|
|
}
|
|
setWaylandMode();
|
|
emit screens()->changed();
|
|
}
|
|
return false;
|
|
}
|
|
const bool wasModeset = m_modesetRequested;
|
|
if (!doAtomicCommit(AtomicCommitMode::Real)) {
|
|
qCDebug(KWIN_DRM) << "Atomic commit failed. This should have never happened! Aborting present.";
|
|
//TODO: Probably should undo setNext and reset the flip list
|
|
return false;
|
|
}
|
|
if (wasModeset) {
|
|
// store current mode set as new good state
|
|
m_lastWorkingState.mode = m_mode;
|
|
m_lastWorkingState.transform = transform();
|
|
m_lastWorkingState.globalPos = globalPos();
|
|
if (m_primaryPlane) {
|
|
m_lastWorkingState.planeTransformations = m_primaryPlane->transformation();
|
|
}
|
|
m_lastWorkingState.valid = true;
|
|
m_renderLoop->setRefreshRate(refreshRateForMode(&m_mode));
|
|
}
|
|
m_pageFlipPending = true;
|
|
return true;
|
|
}
|
|
|
|
bool DrmOutput::presentLegacy(const QSharedPointer<DrmBuffer> &buffer)
|
|
{
|
|
if (m_crtc->next()) {
|
|
return false;
|
|
}
|
|
if (!m_backend->session()->isActive()) {
|
|
m_crtc->setNext(buffer);
|
|
return false;
|
|
}
|
|
|
|
// Do we need to set a new mode first?
|
|
if (!m_crtc->current() || m_crtc->current()->needsModeChange(buffer.get())) {
|
|
if (!setModeLegacy(buffer.get())) {
|
|
return false;
|
|
}
|
|
}
|
|
const bool ok = drmModePageFlip(m_gpu->fd(), m_crtc->id(), buffer->bufferId(), DRM_MODE_PAGE_FLIP_EVENT, this) == 0;
|
|
if (ok) {
|
|
m_crtc->setNext(buffer);
|
|
m_pageFlipPending = true;
|
|
} else {
|
|
qCWarning(KWIN_DRM) << "Page flip failed:" << strerror(errno);
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
bool DrmOutput::setModeLegacy(DrmBuffer *buffer)
|
|
{
|
|
uint32_t connId = m_conn->id();
|
|
if (drmModeSetCrtc(m_gpu->fd(), m_crtc->id(), buffer->bufferId(), 0, 0, &connId, 1, &m_mode) == 0) {
|
|
return true;
|
|
} else {
|
|
qCWarning(KWIN_DRM) << "Mode setting failed";
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool DrmOutput::doAtomicCommit(AtomicCommitMode mode)
|
|
{
|
|
drmModeAtomicReq *req = drmModeAtomicAlloc();
|
|
|
|
auto errorHandler = [this, mode, req] () {
|
|
if (mode == AtomicCommitMode::Test) {
|
|
// TODO: when we later test overlay planes, make sure we change only the right stuff back
|
|
}
|
|
if (req) {
|
|
drmModeAtomicFree(req);
|
|
}
|
|
|
|
if (m_dpmsMode != m_dpmsModePending) {
|
|
qCWarning(KWIN_DRM) << "Setting DPMS failed";
|
|
m_dpmsModePending = m_dpmsMode;
|
|
if (m_dpmsMode != DpmsMode::On) {
|
|
dpmsFinishOff();
|
|
}
|
|
}
|
|
|
|
// TODO: see above, rework later for overlay planes!
|
|
for (DrmPlane *p : m_nextPlanesFlipList) {
|
|
p->setNext(nullptr);
|
|
}
|
|
m_nextPlanesFlipList.clear();
|
|
|
|
};
|
|
|
|
if (!req) {
|
|
qCWarning(KWIN_DRM) << "DRM: couldn't allocate atomic request";
|
|
errorHandler();
|
|
return false;
|
|
}
|
|
|
|
uint32_t flags = 0;
|
|
// Do we need to set a new mode?
|
|
if (m_modesetRequested) {
|
|
if (m_dpmsModePending == DpmsMode::On) {
|
|
if (drmModeCreatePropertyBlob(m_gpu->fd(), &m_mode, sizeof(m_mode), &m_blobId) != 0) {
|
|
qCWarning(KWIN_DRM) << "Failed to create property blob";
|
|
errorHandler();
|
|
return false;
|
|
}
|
|
}
|
|
if (!atomicReqModesetPopulate(req, m_dpmsModePending == DpmsMode::On)){
|
|
qCWarning(KWIN_DRM) << "Failed to populate Atomic Modeset";
|
|
errorHandler();
|
|
return false;
|
|
}
|
|
flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
|
|
}
|
|
|
|
if (mode == AtomicCommitMode::Real) {
|
|
if (m_dpmsModePending == DpmsMode::On) {
|
|
if (!(flags & DRM_MODE_ATOMIC_ALLOW_MODESET)) {
|
|
// TODO: Evaluating this condition should only be necessary, as long as we expect older kernels than 4.10.
|
|
flags |= DRM_MODE_ATOMIC_NONBLOCK;
|
|
}
|
|
|
|
#if HAVE_EGL_STREAMS
|
|
if (!m_gpu->useEglStreams())
|
|
// EglStreamBackend uses the NV_output_drm_flip_event EGL extension
|
|
// to register the flip event through eglStreamConsumerAcquireAttribNV
|
|
#endif
|
|
flags |= DRM_MODE_PAGE_FLIP_EVENT;
|
|
}
|
|
} else {
|
|
flags |= DRM_MODE_ATOMIC_TEST_ONLY;
|
|
}
|
|
|
|
bool ret = true;
|
|
// TODO: Make sure when we use more than one plane at a time, that we go through this list in the right order.
|
|
for (int i = m_nextPlanesFlipList.size() - 1; 0 <= i; i-- ) {
|
|
DrmPlane *p = m_nextPlanesFlipList[i];
|
|
ret &= p->atomicPopulate(req);
|
|
}
|
|
|
|
if (!ret) {
|
|
qCWarning(KWIN_DRM) << "Failed to populate atomic planes. Abort atomic commit!";
|
|
errorHandler();
|
|
return false;
|
|
}
|
|
|
|
if (drmModeAtomicCommit(m_gpu->fd(), req, flags, this)) {
|
|
qCDebug(KWIN_DRM) << "Atomic request failed to commit: " << strerror(errno);
|
|
errorHandler();
|
|
return false;
|
|
}
|
|
|
|
if (mode == AtomicCommitMode::Real && (flags & DRM_MODE_ATOMIC_ALLOW_MODESET)) {
|
|
qCDebug(KWIN_DRM) << "Atomic Modeset successful.";
|
|
m_modesetRequested = false;
|
|
m_dpmsMode = m_dpmsModePending;
|
|
}
|
|
|
|
drmModeAtomicFree(req);
|
|
return true;
|
|
}
|
|
|
|
bool DrmOutput::atomicReqModesetPopulate(drmModeAtomicReq *req, bool enable)
|
|
{
|
|
if (enable) {
|
|
const QSize mSize = modeSize();
|
|
const QSize bufferSize = m_primaryPlane->next() ? m_primaryPlane->next()->size() : pixelSize();
|
|
const QSize sourceSize = hardwareTransforms() ? bufferSize : mSize;
|
|
QRect targetRect = QRect(QPoint(0, 0), mSize);
|
|
if (mSize != sourceSize) {
|
|
targetRect.setSize(sourceSize.scaled(mSize, Qt::AspectRatioMode::KeepAspectRatio));
|
|
targetRect.setX((mSize.width() - targetRect.width()) / 2);
|
|
targetRect.setY((mSize.height() - targetRect.height()) / 2);
|
|
}
|
|
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::SrcX), 0);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::SrcY), 0);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::SrcW), sourceSize.width() << 16);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::SrcH), sourceSize.height() << 16);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::CrtcX), targetRect.x());
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::CrtcY), targetRect.y());
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::CrtcW), targetRect.width());
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::CrtcH), targetRect.height());
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::CrtcId), m_crtc->id());
|
|
} else {
|
|
m_primaryPlane->setCurrent(nullptr);
|
|
m_primaryPlane->setNext(nullptr);
|
|
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::SrcX), 0);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::SrcY), 0);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::SrcW), 0);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::SrcH), 0);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::CrtcX), 0);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::CrtcY), 0);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::CrtcW), 0);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::CrtcH), 0);
|
|
m_primaryPlane->setValue(int(DrmPlane::PropertyIndex::CrtcId), 0);
|
|
}
|
|
m_conn->setValue(int(DrmConnector::PropertyIndex::CrtcId), enable ? m_crtc->id() : 0);
|
|
m_crtc->setValue(int(DrmCrtc::PropertyIndex::ModeId), enable ? m_blobId : 0);
|
|
m_crtc->setValue(int(DrmCrtc::PropertyIndex::Active), enable);
|
|
|
|
bool ret = true;
|
|
ret &= m_conn->atomicPopulate(req);
|
|
ret &= m_crtc->atomicPopulate(req);
|
|
|
|
return ret;
|
|
}
|
|
|
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int DrmOutput::gammaRampSize() const
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|
{
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return m_crtc->gammaRampSize();
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}
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bool DrmOutput::setGammaRamp(const GammaRamp &gamma)
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|
{
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|
return m_crtc->setGammaRamp(gamma);
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}
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|
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}
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QDebug& operator<<(QDebug& s, const KWin::DrmOutput *output)
|
|
{
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|
if (!output)
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|
return s.nospace() << "DrmOutput()";
|
|
return s.nospace() << "DrmOutput(" << output->name() << ", crtc:" << output->crtc() << ", connector:" << output->connector() << ", geometry:" << output->geometry() << ')';
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|
}
|