258 lines
8.3 KiB
C++
258 lines
8.3 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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Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
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Copyright (C) 2012 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "xcbutils.h"
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#include "utils.h"
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// Qt
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#include <QDebug>
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// xcb
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#include <xcb/composite.h>
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#include <xcb/damage.h>
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#include <xcb/randr.h>
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#include <xcb/render.h>
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#include <xcb/shape.h>
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#include <xcb/sync.h>
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#include <xcb/xfixes.h>
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namespace KWin {
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namespace Xcb {
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static const int COMPOSITE_MAX_MAJOR = 0;
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static const int COMPOSITE_MAX_MINOR = 4;
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static const int DAMAGE_MAX_MAJOR = 1;
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static const int DAMAGE_MIN_MAJOR = 1;
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static const int SYNC_MAX_MAJOR = 3;
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static const int SYNC_MAX_MINOR = 0;
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static const int RANDR_MAX_MAJOR = 1;
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static const int RANDR_MAX_MINOR = 4;
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static const int RENDER_MAX_MAJOR = 0;
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static const int RENDER_MAX_MINOR = 11;
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static const int XFIXES_MAX_MAJOR = 5;
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static const int XFIXES_MAX_MINOR = 0;
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ExtensionData::ExtensionData()
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: version(0)
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, eventBase(0)
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, errorBase(0)
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, majorOpcode(0)
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, present(0)
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{
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}
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template<typename reply, typename T, typename F>
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void Extensions::initVersion(T cookie, F f, ExtensionData *dataToFill)
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{
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ScopedCPointer<reply> version(f(connection(), cookie, NULL));
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dataToFill->version = version->major_version * 0x10 + version->minor_version;
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}
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Extensions *Extensions::s_self = NULL;
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Extensions *Extensions::self()
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{
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if (!s_self) {
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s_self = new Extensions();
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}
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return s_self;
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}
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void Extensions::destroy()
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{
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delete s_self;
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s_self = NULL;
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}
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Extensions::Extensions()
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{
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init();
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}
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Extensions::~Extensions()
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{
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}
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void Extensions::init()
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{
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xcb_connection_t *c = connection();
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xcb_prefetch_extension_data(c, &xcb_shape_id);
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xcb_prefetch_extension_data(c, &xcb_randr_id);
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xcb_prefetch_extension_data(c, &xcb_damage_id);
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xcb_prefetch_extension_data(c, &xcb_composite_id);
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xcb_prefetch_extension_data(c, &xcb_xfixes_id);
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xcb_prefetch_extension_data(c, &xcb_render_id);
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xcb_prefetch_extension_data(c, &xcb_sync_id);
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m_shape.name = QByteArray("SHAPE");
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m_randr.name = QByteArray("RANDR");
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m_damage.name = QByteArray("DAMAGE");
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m_composite.name = QByteArray("Composite");
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m_fixes.name = QByteArray("XFIXES");
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m_render.name = QByteArray("RENDER");
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m_sync.name = QByteArray("SYNC");
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extensionQueryReply(xcb_get_extension_data(c, &xcb_shape_id), &m_shape);
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extensionQueryReply(xcb_get_extension_data(c, &xcb_randr_id), &m_randr);
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extensionQueryReply(xcb_get_extension_data(c, &xcb_damage_id), &m_damage);
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extensionQueryReply(xcb_get_extension_data(c, &xcb_composite_id), &m_composite);
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extensionQueryReply(xcb_get_extension_data(c, &xcb_xfixes_id), &m_fixes);
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extensionQueryReply(xcb_get_extension_data(c, &xcb_render_id), &m_render);
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extensionQueryReply(xcb_get_extension_data(c, &xcb_sync_id), &m_sync);
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// extension specific queries
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xcb_shape_query_version_cookie_t shapeVersion;
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xcb_randr_query_version_cookie_t randrVersion;
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xcb_damage_query_version_cookie_t damageVersion;
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xcb_composite_query_version_cookie_t compositeVersion;
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xcb_xfixes_query_version_cookie_t xfixesVersion;
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xcb_render_query_version_cookie_t renderVersion;
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xcb_sync_initialize_cookie_t syncVersion;
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if (m_shape.present) {
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shapeVersion = xcb_shape_query_version_unchecked(c);
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}
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if (m_randr.present) {
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randrVersion = xcb_randr_query_version_unchecked(c, RANDR_MAX_MAJOR, RANDR_MAX_MINOR);
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xcb_randr_select_input(connection(), rootWindow(), XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE);
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}
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if (m_damage.present) {
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damageVersion = xcb_damage_query_version_unchecked(c, DAMAGE_MAX_MAJOR, DAMAGE_MIN_MAJOR);
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}
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if (m_composite.present) {
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compositeVersion = xcb_composite_query_version_unchecked(c, COMPOSITE_MAX_MAJOR, COMPOSITE_MAX_MINOR);
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}
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if (m_fixes.present) {
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xfixesVersion = xcb_xfixes_query_version_unchecked(c, XFIXES_MAX_MAJOR, XFIXES_MAX_MINOR);
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}
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if (m_render.present) {
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renderVersion = xcb_render_query_version_unchecked(c, RENDER_MAX_MAJOR, RENDER_MAX_MINOR);
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}
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if (m_sync.present) {
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syncVersion = xcb_sync_initialize(c, SYNC_MAX_MAJOR, SYNC_MAX_MINOR);
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}
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// handle replies
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if (m_shape.present) {
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initVersion<xcb_shape_query_version_reply_t>(shapeVersion, &xcb_shape_query_version_reply, &m_shape);
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}
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if (m_randr.present) {
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initVersion<xcb_randr_query_version_reply_t>(randrVersion, &xcb_randr_query_version_reply, &m_randr);
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}
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if (m_damage.present) {
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initVersion<xcb_damage_query_version_reply_t>(damageVersion, &xcb_damage_query_version_reply, &m_damage);
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}
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if (m_composite.present) {
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initVersion<xcb_composite_query_version_reply_t>(compositeVersion, &xcb_composite_query_version_reply, &m_composite);
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}
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if (m_fixes.present) {
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initVersion<xcb_xfixes_query_version_reply_t>(xfixesVersion, &xcb_xfixes_query_version_reply, &m_fixes);
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}
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if (m_render.present) {
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initVersion<xcb_render_query_version_reply_t>(renderVersion, &xcb_render_query_version_reply, &m_render);
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}
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if (m_sync.present) {
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initVersion<xcb_sync_initialize_reply_t>(syncVersion, &xcb_sync_initialize_reply, &m_sync);
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}
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qDebug() << "Extensions: shape: 0x" << QString::number(m_shape.version, 16)
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<< " composite: 0x" << QString::number(m_composite.version, 16)
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<< " render: 0x" << QString::number(m_render.version, 16)
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<< " fixes: 0x" << QString::number(m_fixes.version, 16)
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<< " randr: 0x" << QString::number(m_randr.version, 16)
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<< " sync: 0x" << QString::number(m_sync.version, 16)
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<< " damage: 0x " << QString::number(m_damage.version, 16) << endl;
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}
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void Extensions::extensionQueryReply(const xcb_query_extension_reply_t *extension, ExtensionData *dataToFill)
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{
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if (!extension) {
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return;
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}
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dataToFill->present = extension->present;
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dataToFill->eventBase = extension->first_event;
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dataToFill->errorBase = extension->first_error;
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dataToFill->majorOpcode = extension->major_opcode;
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}
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int Extensions::damageNotifyEvent() const
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{
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return m_damage.eventBase + XCB_DAMAGE_NOTIFY;
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}
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bool Extensions::hasShape(xcb_window_t w) const
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{
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if (!isShapeAvailable()) {
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return false;
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}
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ScopedCPointer<xcb_shape_query_extents_reply_t> extents(xcb_shape_query_extents_reply(
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connection(), xcb_shape_query_extents_unchecked(connection(), w), NULL));
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if (extents.isNull()) {
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return false;
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}
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return extents->bounding_shaped > 0;
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}
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bool Extensions::isCompositeOverlayAvailable() const
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{
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return m_composite.version >= 0x03; // 0.3
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}
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bool Extensions::isFixesRegionAvailable() const
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{
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return m_fixes.version >= 0x30; // 3
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}
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int Extensions::fixesCursorNotifyEvent() const
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{
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return m_fixes.eventBase + XCB_XFIXES_CURSOR_NOTIFY;
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}
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bool Extensions::isShapeInputAvailable() const
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{
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return m_shape.version >= 0x11; // 1.1
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}
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int Extensions::randrNotifyEvent() const
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{
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return m_randr.eventBase + XCB_RANDR_SCREEN_CHANGE_NOTIFY;
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}
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int Extensions::shapeNotifyEvent() const
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{
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return m_shape.eventBase + XCB_SHAPE_NOTIFY;
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}
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int Extensions::syncAlarmNotifyEvent() const
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{
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return m_sync.eventBase + XCB_SYNC_ALARM_NOTIFY;
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}
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QVector<ExtensionData> Extensions::extensions() const
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{
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QVector<ExtensionData> extensions;
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extensions << m_shape
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<< m_randr
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<< m_damage
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<< m_composite
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<< m_render
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<< m_fixes
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<< m_sync;
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return extensions;
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}
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} // namespace Xcb
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} // namespace KWin
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