kwin/wayland_server/output_interface.cpp
Martin Gräßlin 1e230fda77 [kwin_wayland] Initial addition of the WaylandServer module
So far this new module contains:
* Display
* OutputInterface

Display manages the server socket and server event loop. In general it's
the entry point to any part of the server.

OutputInterface is the abstraction for the wl_output interface on server
side. An OutputInterface is created through the Display.

The auto tests for ConnectionThread and Output are adjusted to use the
internal server instead of starting Weston. Especially the Output test
could be extended to test much more as we have absolute control over
the server now.
2014-09-02 09:52:16 +02:00

371 lines
11 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2014 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 "output_interface.h"
#include "display.h"
#include <wayland-server.h>
namespace KWin
{
namespace WaylandServer
{
static const quint32 s_version = 2;
OutputInterface::OutputInterface(Display *display, QObject *parent)
: QObject(parent)
, m_display(display)
, m_output(nullptr)
, m_physicalSize(QSize())
, m_globalPosition(QPoint())
, m_manufacturer(QStringLiteral("org.kde.kwin"))
, m_model(QStringLiteral("none"))
, m_scale(1)
, m_subPixel(SubPixel::Unknown)
, m_transform(Transform::Normal)
{
connect(this, &OutputInterface::currentModeChanged, this,
[this] {
auto currentModeIt = std::find_if(m_modes.constBegin(), m_modes.constEnd(), [](const Mode &mode) { return mode.flags.testFlag(ModeFlag::Current); });
if (currentModeIt == m_modes.constEnd()) {
return;
}
for (auto it = m_resources.constBegin(); it != m_resources.constEnd(); ++it) {
sendMode((*it).resource, *currentModeIt);
sendDone(*it);
}
}
);
connect(this, &OutputInterface::subPixelChanged, this, &OutputInterface::updateGeometry);
connect(this, &OutputInterface::transformChanged, this, &OutputInterface::updateGeometry);
connect(this, &OutputInterface::globalPositionChanged, this, &OutputInterface::updateGeometry);
connect(this, &OutputInterface::modelChanged, this, &OutputInterface::updateGeometry);
connect(this, &OutputInterface::manufacturerChanged, this, &OutputInterface::updateGeometry);
connect(this, &OutputInterface::scaleChanged, this, &OutputInterface::updateScale);
}
OutputInterface::~OutputInterface()
{
destroy();
}
void OutputInterface::create()
{
Q_ASSERT(!m_output);
m_output = wl_global_create(*m_display, &wl_output_interface, s_version, this, OutputInterface::bind);
}
void OutputInterface::destroy()
{
if (!m_output) {
return;
}
wl_global_destroy(m_output);
m_output = nullptr;
}
QSize OutputInterface::pixelSize() const
{
auto it = std::find_if(m_modes.begin(), m_modes.end(),
[](const Mode &mode) {
return mode.flags.testFlag(ModeFlag::Current);
}
);
if (it == m_modes.end()) {
return QSize();
}
return (*it).size;
}
int OutputInterface::refreshRate() const
{
auto it = std::find_if(m_modes.begin(), m_modes.end(),
[](const Mode &mode) {
return mode.flags.testFlag(ModeFlag::Current);
}
);
if (it == m_modes.end()) {
return 60000;
}
return (*it).refreshRate;
}
void OutputInterface::addMode(const QSize &size, OutputInterface::ModeFlags flags, int refreshRate)
{
Q_ASSERT(!isValid());
auto currentModeIt = std::find_if(m_modes.begin(), m_modes.end(),
[](const Mode &mode) {
return mode.flags.testFlag(ModeFlag::Current);
}
);
if (currentModeIt == m_modes.end() && !flags.testFlag(ModeFlag::Current)) {
// no mode with current flag - enforce
flags |= ModeFlag::Current;
}
if (currentModeIt != m_modes.end() && flags.testFlag(ModeFlag::Current)) {
// another mode has the current flag - remove
(*currentModeIt).flags &= ~uint(ModeFlag::Current);
}
if (flags.testFlag(ModeFlag::Preferred)) {
// remove from existing Preferred mode
auto preferredIt = std::find_if(m_modes.begin(), m_modes.end(),
[](const Mode &mode) {
return mode.flags.testFlag(ModeFlag::Preferred);
}
);
if (preferredIt != m_modes.end()) {
(*preferredIt).flags &= ~uint(ModeFlag::Preferred);
}
}
auto existingModeIt = std::find_if(m_modes.begin(), m_modes.end(),
[size,refreshRate](const Mode &mode) {
return mode.size == size && mode.refreshRate == refreshRate;
}
);
auto emitChanges = [this,flags,size,refreshRate] {
emit modesChanged();
if (flags.testFlag(ModeFlag::Current)) {
emit refreshRateChanged(refreshRate);
emit pixelSizeChanged(size);
emit currentModeChanged();
}
};
if (existingModeIt != m_modes.end()) {
if ((*existingModeIt).flags == flags) {
// nothing to do
return;
}
(*existingModeIt).flags = flags;
emitChanges();
return;
}
Mode mode;
mode.size = size;
mode.refreshRate = refreshRate;
mode.flags = flags;
m_modes << mode;
emitChanges();
}
void OutputInterface::setCurrentMode(const QSize &size, int refreshRate)
{
auto currentModeIt = std::find_if(m_modes.begin(), m_modes.end(),
[](const Mode &mode) {
return mode.flags.testFlag(ModeFlag::Current);
}
);
if (currentModeIt != m_modes.end()) {
// another mode has the current flag - remove
(*currentModeIt).flags &= ~uint(ModeFlag::Current);
}
auto existingModeIt = std::find_if(m_modes.begin(), m_modes.end(),
[size,refreshRate](const Mode &mode) {
return mode.size == size && mode.refreshRate == refreshRate;
}
);
Q_ASSERT(existingModeIt != m_modes.end());
(*existingModeIt).flags |= ModeFlag::Current;
emit modesChanged();
emit refreshRateChanged((*existingModeIt).refreshRate);
emit pixelSizeChanged((*existingModeIt).size);
emit currentModeChanged();
}
void OutputInterface::bind(wl_client *client, void *data, uint32_t version, uint32_t id)
{
OutputInterface *output = reinterpret_cast<OutputInterface*>(data);
output->bind(client, version, id);
}
int32_t OutputInterface::toTransform() const
{
switch (m_transform) {
case Transform::Normal:
return WL_OUTPUT_TRANSFORM_NORMAL;
case Transform::Rotated90:
return WL_OUTPUT_TRANSFORM_90;
case Transform::Rotated180:
return WL_OUTPUT_TRANSFORM_180;
case Transform::Rotated270:
return WL_OUTPUT_TRANSFORM_270;
case Transform::Flipped:
return WL_OUTPUT_TRANSFORM_FLIPPED;
case Transform::Flipped90:
return WL_OUTPUT_TRANSFORM_FLIPPED_90;
case Transform::Flipped180:
return WL_OUTPUT_TRANSFORM_FLIPPED_180;
case Transform::Flipped270:
return WL_OUTPUT_TRANSFORM_FLIPPED_270;
}
abort();
}
int32_t OutputInterface::toSubPixel() const
{
switch (m_subPixel) {
case SubPixel::Unknown:
return WL_OUTPUT_SUBPIXEL_UNKNOWN;
case SubPixel::None:
return WL_OUTPUT_SUBPIXEL_NONE;
case SubPixel::HorizontalRGB:
return WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB;
case SubPixel::HorizontalBGR:
return WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR;
case SubPixel::VerticalRGB:
return WL_OUTPUT_SUBPIXEL_VERTICAL_RGB;
case SubPixel::VerticalBGR:
return WL_OUTPUT_SUBPIXEL_VERTICAL_BGR;
}
abort();
}
void OutputInterface::bind(wl_client *client, uint32_t version, uint32_t id)
{
wl_resource *resource = wl_resource_create(client, &wl_output_interface, qMin(version, s_version), id);
if (!resource) {
wl_client_post_no_memory(client);
return;
}
wl_resource_set_user_data(resource, this);
wl_resource_set_destructor(resource, OutputInterface::unbind);
ResourceData r;
r.resource = resource;
r.version = version;
m_resources << r;
sendGeometry(resource);
sendScale(r);
auto currentModeIt = m_modes.constEnd();
for (auto it = m_modes.constBegin(); it != m_modes.constEnd(); ++it) {
const Mode &mode = *it;
if (mode.flags.testFlag(ModeFlag::Current)) {
// needs to be sent as last mode
currentModeIt = it;
continue;
}
sendMode(resource, mode);
}
if (currentModeIt != m_modes.constEnd()) {
sendMode(resource, *currentModeIt);
}
sendDone(r);
}
void OutputInterface::unbind(wl_resource *resource)
{
OutputInterface *o = reinterpret_cast<OutputInterface*>(wl_resource_get_user_data(resource));
auto it = std::find_if(o->m_resources.begin(), o->m_resources.end(), [resource](const ResourceData &r) { return r.resource == resource; });
if (it != o->m_resources.end()) {
o->m_resources.erase(it);
}
}
void OutputInterface::sendMode(wl_resource *resource, const Mode &mode)
{
int32_t flags = 0;
if (mode.flags.testFlag(ModeFlag::Current)) {
flags |= WL_OUTPUT_MODE_CURRENT;
}
if (mode.flags.testFlag(ModeFlag::Preferred)) {
flags |= WL_OUTPUT_MODE_PREFERRED;
}
wl_output_send_mode(resource,
flags,
mode.size.width(),
mode.size.height(),
mode.refreshRate);
}
void OutputInterface::sendGeometry(wl_resource *resource)
{
wl_output_send_geometry(resource,
m_globalPosition.x(),
m_globalPosition.y(),
m_physicalSize.width(),
m_physicalSize.height(),
toSubPixel(),
qPrintable(m_manufacturer),
qPrintable(m_model),
toTransform());
}
void OutputInterface::sendScale(const OutputInterface::ResourceData &data)
{
if (data.version < 2) {
return;
}
wl_output_send_scale(data.resource, m_scale);
}
void OutputInterface::sendDone(const OutputInterface::ResourceData &data)
{
if (data.version < 2) {
return;
}
wl_output_send_done(data.resource);
}
void OutputInterface::updateGeometry()
{
for (auto it = m_resources.constBegin(); it != m_resources.constEnd(); ++it) {
sendGeometry((*it).resource);
sendDone(*it);
}
}
void OutputInterface::updateScale()
{
for (auto it = m_resources.constBegin(); it != m_resources.constEnd(); ++it) {
sendScale(*it);
sendDone(*it);
}
}
#define SETTER(setterName, type, argumentName) \
void OutputInterface::setterName(type arg) \
{ \
if (m_##argumentName == arg) { \
return; \
} \
m_##argumentName = arg; \
emit argumentName##Changed(m_##argumentName); \
}
SETTER(setPhysicalSize, const QSize&, physicalSize)
SETTER(setGlobalPosition, const QPoint&, globalPosition)
SETTER(setManufacturer, const QString&, manufacturer)
SETTER(setModel, const QString&, model)
SETTER(setScale, int, scale)
SETTER(setSubPixel, SubPixel, subPixel)
SETTER(setTransform, Transform, transform)
#undef SETTER
}
}