/* KWin - the KDE window manager This file is part of the KDE project. SPDX-FileCopyrightText: 2006 Lubos Lunak SPDX-FileCopyrightText: 2012 Martin Gräßlin SPDX-License-Identifier: GPL-2.0-or-later */ #include "xcbutils.h" #include "utils.h" // Qt #include // xcb #include #include #include #include #include #include #include #include // system #include #include namespace KWin { namespace Xcb { static const int COMPOSITE_MAX_MAJOR = 0; static const int COMPOSITE_MAX_MINOR = 4; static const int DAMAGE_MAX_MAJOR = 1; static const int DAMAGE_MIN_MAJOR = 1; static const int SYNC_MAX_MAJOR = 3; static const int SYNC_MAX_MINOR = 0; static const int RANDR_MAX_MAJOR = 1; static const int RANDR_MAX_MINOR = 4; static const int RENDER_MAX_MAJOR = 0; static const int RENDER_MAX_MINOR = 11; static const int XFIXES_MAX_MAJOR = 5; static const int XFIXES_MAX_MINOR = 0; QVector shapeOpCodes() { // see https://www.x.org/releases/X11R7.7/doc/xextproto/shape.html // extracted from return QVector({QByteArrayLiteral("QueryVersion"), QByteArrayLiteral("Rectangles"), QByteArrayLiteral("Mask"), QByteArrayLiteral("Combine"), QByteArrayLiteral("Offset"), QByteArrayLiteral("Extents"), QByteArrayLiteral("Input"), QByteArrayLiteral("InputSelected"), QByteArrayLiteral("GetRectangles")}); } QVector randrOpCodes() { // see https://www.x.org/releases/X11R7.7/doc/randrproto/randrproto.txt // extracted from return QVector({QByteArrayLiteral("QueryVersion"), QByteArray(""), // doesn't exist QByteArrayLiteral("SetScreenConfig"), QByteArray(""), // doesn't exits QByteArrayLiteral("SelectInput"), QByteArrayLiteral("GetScreenInfo"), QByteArrayLiteral("GetScreenSizeRange"), QByteArrayLiteral("SetScreenSize"), QByteArrayLiteral("GetScreenResources"), QByteArrayLiteral("GetOutputInfo"), QByteArrayLiteral("ListOutputProperties"), QByteArrayLiteral("QueryOutputProperty"), QByteArrayLiteral("ConfigureOutputProperty"), QByteArrayLiteral("ChangeOutputProperty"), QByteArrayLiteral("DeleteOutputProperty"), QByteArrayLiteral("GetOutputproperty"), QByteArrayLiteral("CreateMode"), QByteArrayLiteral("DestroyMode"), QByteArrayLiteral("AddOutputMode"), QByteArrayLiteral("DeleteOutputMode"), QByteArrayLiteral("GetCrtcInfo"), QByteArrayLiteral("SetCrtcConfig"), QByteArrayLiteral("GetCrtcGammaSize"), QByteArrayLiteral("GetCrtcGamma"), QByteArrayLiteral("SetCrtcGamma"), QByteArrayLiteral("GetScreenResourcesCurrent"), QByteArrayLiteral("SetCrtcTransform"), QByteArrayLiteral("GetCrtcTransform"), QByteArrayLiteral("GetPanning"), QByteArrayLiteral("SetPanning"), QByteArrayLiteral("SetOutputPrimary"), QByteArrayLiteral("GetOutputPrimary"), QByteArrayLiteral("GetProviders"), QByteArrayLiteral("GetProviderInfo"), QByteArrayLiteral("SetProviderOffloadSink"), QByteArrayLiteral("SetProviderOutputSource"), QByteArrayLiteral("ListProviderProperties"), QByteArrayLiteral("QueryProviderProperty"), QByteArrayLiteral("ConfigureProviderroperty"), QByteArrayLiteral("ChangeProviderProperty"), QByteArrayLiteral("DeleteProviderProperty"), QByteArrayLiteral("GetProviderProperty")}); } QVector randrErrorCodes() { // see https://www.x.org/releases/X11R7.7/doc/randrproto/randrproto.txt // extracted from return QVector({QByteArrayLiteral("BadOutput"), QByteArrayLiteral("BadCrtc"), QByteArrayLiteral("BadMode"), QByteArrayLiteral("BadProvider")}); } QVector damageOpCodes() { // see https://www.x.org/releases/X11R7.7/doc/damageproto/damageproto.txt // extracted from return QVector({QByteArrayLiteral("QueryVersion"), QByteArrayLiteral("Create"), QByteArrayLiteral("Destroy"), QByteArrayLiteral("Subtract"), QByteArrayLiteral("Add")}); } QVector damageErrorCodes() { // see https://www.x.org/releases/X11R7.7/doc/damageproto/damageproto.txt // extracted from return QVector({QByteArrayLiteral("BadDamage")}); } QVector compositeOpCodes() { // see https://www.x.org/releases/X11R7.7/doc/compositeproto/compositeproto.txt // extracted from return QVector({QByteArrayLiteral("QueryVersion"), QByteArrayLiteral("RedirectWindow"), QByteArrayLiteral("RedirectSubwindows"), QByteArrayLiteral("UnredirectWindow"), QByteArrayLiteral("UnredirectSubwindows"), QByteArrayLiteral("CreateRegionFromBorderClip"), QByteArrayLiteral("NameWindowPixmap"), QByteArrayLiteral("GetOverlayWindow"), QByteArrayLiteral("ReleaseOverlayWindow")}); } QVector fixesOpCodes() { // see https://www.x.org/releases/X11R7.7/doc/fixesproto/fixesproto.txt // extracted from return QVector({QByteArrayLiteral("QueryVersion"), QByteArrayLiteral("ChangeSaveSet"), QByteArrayLiteral("SelectSelectionInput"), QByteArrayLiteral("SelectCursorInput"), QByteArrayLiteral("GetCursorImage"), QByteArrayLiteral("CreateRegion"), QByteArrayLiteral("CreateRegionFromBitmap"), QByteArrayLiteral("CreateRegionFromWindow"), QByteArrayLiteral("CreateRegionFromGc"), QByteArrayLiteral("CreateRegionFromPicture"), QByteArrayLiteral("DestroyRegion"), QByteArrayLiteral("SetRegion"), QByteArrayLiteral("CopyRegion"), QByteArrayLiteral("UnionRegion"), QByteArrayLiteral("IntersectRegion"), QByteArrayLiteral("SubtractRegion"), QByteArrayLiteral("InvertRegion"), QByteArrayLiteral("TranslateRegion"), QByteArrayLiteral("RegionExtents"), QByteArrayLiteral("FetchRegion"), QByteArrayLiteral("SetGcClipRegion"), QByteArrayLiteral("SetWindowShapeRegion"), QByteArrayLiteral("SetPictureClipRegion"), QByteArrayLiteral("SetCursorName"), QByteArrayLiteral("GetCursorName"), QByteArrayLiteral("GetCursorImageAndName"), QByteArrayLiteral("ChangeCursor"), QByteArrayLiteral("ChangeCursorByName"), QByteArrayLiteral("ExpandRegion"), QByteArrayLiteral("HideCursor"), QByteArrayLiteral("ShowCursor"), QByteArrayLiteral("CreatePointerBarrier"), QByteArrayLiteral("DeletePointerBarrier")}); } QVector fixesErrorCodes() { // see https://www.x.org/releases/X11R7.7/doc/fixesproto/fixesproto.txt // extracted from return QVector({QByteArrayLiteral("BadRegion")}); } QVector renderOpCodes() { // see https://www.x.org/releases/X11R7.7/doc/renderproto/renderproto.txt // extracted from return QVector({QByteArrayLiteral("QueryVersion"), QByteArrayLiteral("QueryPictFormats"), QByteArrayLiteral("QueryPictIndexValues"), QByteArrayLiteral("CreatePicture"), QByteArrayLiteral("ChangePicture"), QByteArrayLiteral("SetPictureClipRectangles"), QByteArrayLiteral("FreePicture"), QByteArrayLiteral("Composite"), QByteArrayLiteral("Trapezoids"), QByteArrayLiteral("Triangles"), QByteArrayLiteral("TriStrip"), QByteArrayLiteral("TriFan"), QByteArrayLiteral("CreateGlyphSet"), QByteArrayLiteral("ReferenceGlyphSet"), QByteArrayLiteral("FreeGlyphSet"), QByteArrayLiteral("AddGlyphs"), QByteArrayLiteral("FreeGlyphs"), QByteArrayLiteral("CompositeGlyphs8"), QByteArrayLiteral("CompositeGlyphs16"), QByteArrayLiteral("CompositeGlyphs32"), QByteArrayLiteral("FillRectangles"), QByteArrayLiteral("CreateCursor"), QByteArrayLiteral("SetPictureTransform"), QByteArrayLiteral("QueryFilters"), QByteArrayLiteral("SetPictureFilter"), QByteArrayLiteral("CreateAnimCursor"), QByteArrayLiteral("AddTraps"), QByteArrayLiteral("CreateSolidFill"), QByteArrayLiteral("CreateLinearGradient"), QByteArrayLiteral("CreateRadialGradient"), QByteArrayLiteral("CreateConicalGradient")}); } QVector syncOpCodes() { // see https://www.x.org/releases/X11R7.7/doc/xextproto/sync.html // extracted from return QVector({QByteArrayLiteral("Initialize"), QByteArrayLiteral("ListSystemCounters"), QByteArrayLiteral("CreateCounter"), QByteArrayLiteral("DestroyCounter"), QByteArrayLiteral("QueryCounter"), QByteArrayLiteral("Await"), QByteArrayLiteral("ChangeCounter"), QByteArrayLiteral("SetCounter"), QByteArrayLiteral("CreateAlarm"), QByteArrayLiteral("ChangeAlarm"), QByteArrayLiteral("DestroyAlarm"), QByteArrayLiteral("QueryAlarm"), QByteArrayLiteral("SetPriority"), QByteArrayLiteral("GetPriority"), QByteArrayLiteral("CreateFence"), QByteArrayLiteral("TriggerFence"), QByteArrayLiteral("ResetFence"), QByteArrayLiteral("DestroyFence"), QByteArrayLiteral("QueryFence"), QByteArrayLiteral("AwaitFence")}); } static QVector glxOpCodes() { return QVector{ QByteArrayLiteral(""), QByteArrayLiteral("Render"), QByteArrayLiteral("RenderLarge"), QByteArrayLiteral("CreateContext"), QByteArrayLiteral("DestroyContext"), QByteArrayLiteral("MakeCurrent"), QByteArrayLiteral("IsDirect"), QByteArrayLiteral("QueryVersion"), QByteArrayLiteral("WaitGL"), QByteArrayLiteral("WaitX"), QByteArrayLiteral("CopyContext"), QByteArrayLiteral("SwapBuffers"), QByteArrayLiteral("UseXFont"), QByteArrayLiteral("CreateGLXPixmap"), QByteArrayLiteral("GetVisualConfigs"), QByteArrayLiteral("DestroyGLXPixmap"), QByteArrayLiteral("VendorPrivate"), QByteArrayLiteral("VendorPrivateWithReply"), QByteArrayLiteral("QueryExtensionsString"), QByteArrayLiteral("QueryServerString"), QByteArrayLiteral("ClientInfo"), QByteArrayLiteral("GetFBConfigs"), QByteArrayLiteral("CreatePixmap"), QByteArrayLiteral("DestroyPixmap"), QByteArrayLiteral("CreateNewContext"), QByteArrayLiteral("QueryContext"), QByteArrayLiteral("MakeContextCurrent"), QByteArrayLiteral("CreatePbuffer"), QByteArrayLiteral("DestroyPbuffer"), QByteArrayLiteral("GetDrawableAttributes"), QByteArrayLiteral("ChangeDrawableAttributes"), QByteArrayLiteral("CreateWindow"), QByteArrayLiteral("DeleteWindow"), QByteArrayLiteral("SetClientInfoARB"), QByteArrayLiteral("CreateContextAttribsARB"), QByteArrayLiteral("SetClientInfo2ARB") // Opcodes 36-100 are unused // The GL single commands begin at opcode 101 }; } static QVector glxErrorCodes() { return QVector{ QByteArrayLiteral("BadContext"), QByteArrayLiteral("BadContextState"), QByteArrayLiteral("BadDrawable"), QByteArrayLiteral("BadPixmap"), QByteArrayLiteral("BadContextTag"), QByteArrayLiteral("BadCurrentWindow"), QByteArrayLiteral("BadRenderRequest"), QByteArrayLiteral("BadLargeRequest"), QByteArrayLiteral("UnsupportedPrivateRequest"), QByteArrayLiteral("BadFBConfig"), QByteArrayLiteral("BadPbuffer"), QByteArrayLiteral("BadCurrentDrawable"), QByteArrayLiteral("BadWindow"), QByteArrayLiteral("GLXBadProfileARB") }; } ExtensionData::ExtensionData() : version(0) , eventBase(0) , errorBase(0) , majorOpcode(0) , present(0) { } template void Extensions::initVersion(T cookie, F f, ExtensionData *dataToFill) { ScopedCPointer version(f(connection(), cookie, nullptr)); dataToFill->version = version->major_version * 0x10 + version->minor_version; } Extensions *Extensions::s_self = nullptr; Extensions *Extensions::self() { if (!s_self) { s_self = new Extensions(); } return s_self; } void Extensions::destroy() { delete s_self; s_self = nullptr; } Extensions::Extensions() { init(); } Extensions::~Extensions() { } void Extensions::init() { xcb_connection_t *c = connection(); xcb_prefetch_extension_data(c, &xcb_shape_id); xcb_prefetch_extension_data(c, &xcb_randr_id); xcb_prefetch_extension_data(c, &xcb_damage_id); xcb_prefetch_extension_data(c, &xcb_composite_id); xcb_prefetch_extension_data(c, &xcb_xfixes_id); xcb_prefetch_extension_data(c, &xcb_render_id); xcb_prefetch_extension_data(c, &xcb_sync_id); xcb_prefetch_extension_data(c, &xcb_glx_id); m_shape.name = QByteArray("SHAPE"); m_randr.name = QByteArray("RANDR"); m_damage.name = QByteArray("DAMAGE"); m_composite.name = QByteArray("Composite"); m_fixes.name = QByteArray("XFIXES"); m_render.name = QByteArray("RENDER"); m_sync.name = QByteArray("SYNC"); m_glx.name = QByteArray("GLX"); m_shape.opCodes = shapeOpCodes(); m_randr.opCodes = randrOpCodes(); m_damage.opCodes = damageOpCodes(); m_composite.opCodes = compositeOpCodes(); m_fixes.opCodes = fixesOpCodes(); m_render.opCodes = renderOpCodes(); m_sync.opCodes = syncOpCodes(); m_glx.opCodes = glxOpCodes(); m_randr.errorCodes = randrErrorCodes(); m_damage.errorCodes = damageErrorCodes(); m_fixes.errorCodes = fixesErrorCodes(); m_glx.errorCodes = glxErrorCodes(); extensionQueryReply(xcb_get_extension_data(c, &xcb_shape_id), &m_shape); extensionQueryReply(xcb_get_extension_data(c, &xcb_randr_id), &m_randr); extensionQueryReply(xcb_get_extension_data(c, &xcb_damage_id), &m_damage); extensionQueryReply(xcb_get_extension_data(c, &xcb_composite_id), &m_composite); extensionQueryReply(xcb_get_extension_data(c, &xcb_xfixes_id), &m_fixes); extensionQueryReply(xcb_get_extension_data(c, &xcb_render_id), &m_render); extensionQueryReply(xcb_get_extension_data(c, &xcb_sync_id), &m_sync); extensionQueryReply(xcb_get_extension_data(c, &xcb_glx_id), &m_glx); // extension specific queries xcb_shape_query_version_cookie_t shapeVersion; xcb_randr_query_version_cookie_t randrVersion; xcb_damage_query_version_cookie_t damageVersion; xcb_composite_query_version_cookie_t compositeVersion; xcb_xfixes_query_version_cookie_t xfixesVersion; xcb_render_query_version_cookie_t renderVersion; xcb_sync_initialize_cookie_t syncVersion; if (m_shape.present) { shapeVersion = xcb_shape_query_version_unchecked(c); } if (m_randr.present) { randrVersion = xcb_randr_query_version_unchecked(c, RANDR_MAX_MAJOR, RANDR_MAX_MINOR); xcb_randr_select_input(connection(), rootWindow(), XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE); } if (m_damage.present) { damageVersion = xcb_damage_query_version_unchecked(c, DAMAGE_MAX_MAJOR, DAMAGE_MIN_MAJOR); } if (m_composite.present) { compositeVersion = xcb_composite_query_version_unchecked(c, COMPOSITE_MAX_MAJOR, COMPOSITE_MAX_MINOR); } if (m_fixes.present) { xfixesVersion = xcb_xfixes_query_version_unchecked(c, XFIXES_MAX_MAJOR, XFIXES_MAX_MINOR); } if (m_render.present) { renderVersion = xcb_render_query_version_unchecked(c, RENDER_MAX_MAJOR, RENDER_MAX_MINOR); } if (m_sync.present) { syncVersion = xcb_sync_initialize(c, SYNC_MAX_MAJOR, SYNC_MAX_MINOR); } // handle replies if (m_shape.present) { initVersion(shapeVersion, &xcb_shape_query_version_reply, &m_shape); } if (m_randr.present) { initVersion(randrVersion, &xcb_randr_query_version_reply, &m_randr); } if (m_damage.present) { initVersion(damageVersion, &xcb_damage_query_version_reply, &m_damage); } if (m_composite.present) { initVersion(compositeVersion, &xcb_composite_query_version_reply, &m_composite); } if (m_fixes.present) { initVersion(xfixesVersion, &xcb_xfixes_query_version_reply, &m_fixes); } if (m_render.present) { initVersion(renderVersion, &xcb_render_query_version_reply, &m_render); } if (m_sync.present) { initVersion(syncVersion, &xcb_sync_initialize_reply, &m_sync); } qCDebug(KWIN_CORE) << "Extensions: shape: 0x" << QString::number(m_shape.version, 16) << " composite: 0x" << QString::number(m_composite.version, 16) << " render: 0x" << QString::number(m_render.version, 16) << " fixes: 0x" << QString::number(m_fixes.version, 16) << " randr: 0x" << QString::number(m_randr.version, 16) << " sync: 0x" << QString::number(m_sync.version, 16) << " damage: 0x " << QString::number(m_damage.version, 16); } void Extensions::extensionQueryReply(const xcb_query_extension_reply_t *extension, ExtensionData *dataToFill) { if (!extension) { return; } dataToFill->present = extension->present; dataToFill->eventBase = extension->first_event; dataToFill->errorBase = extension->first_error; dataToFill->majorOpcode = extension->major_opcode; } int Extensions::damageNotifyEvent() const { return m_damage.eventBase + XCB_DAMAGE_NOTIFY; } bool Extensions::hasShape(xcb_window_t w) const { if (!isShapeAvailable()) { return false; } ScopedCPointer extents(xcb_shape_query_extents_reply( connection(), xcb_shape_query_extents_unchecked(connection(), w), nullptr)); if (extents.isNull()) { return false; } return extents->bounding_shaped > 0; } bool Extensions::isCompositeOverlayAvailable() const { return m_composite.version >= 0x03; // 0.3 } bool Extensions::isFixesRegionAvailable() const { return m_fixes.version >= 0x30; // 3 } int Extensions::fixesCursorNotifyEvent() const { return m_fixes.eventBase + XCB_XFIXES_CURSOR_NOTIFY; } int Extensions::fixesSelectionNotifyEvent() const { return m_fixes.eventBase + XCB_XFIXES_SELECTION_NOTIFY; } bool Extensions::isShapeInputAvailable() const { return m_shape.version >= 0x11; // 1.1 } int Extensions::randrNotifyEvent() const { return m_randr.eventBase + XCB_RANDR_SCREEN_CHANGE_NOTIFY; } int Extensions::shapeNotifyEvent() const { return m_shape.eventBase + XCB_SHAPE_NOTIFY; } int Extensions::syncAlarmNotifyEvent() const { return m_sync.eventBase + XCB_SYNC_ALARM_NOTIFY; } QVector Extensions::extensions() const { return { m_shape, m_randr, m_damage, m_composite, m_render, m_fixes, m_sync, m_glx }; } //**************************************** // Shm //**************************************** Shm::Shm() : m_shmId(-1) , m_buffer(nullptr) , m_segment(XCB_NONE) , m_valid(false) , m_pixmapFormat(XCB_IMAGE_FORMAT_XY_BITMAP) { m_valid = init(); } Shm::~Shm() { if (m_valid) { xcb_shm_detach(connection(), m_segment); shmdt(m_buffer); } } bool Shm::init() { const xcb_query_extension_reply_t *ext = xcb_get_extension_data(connection(), &xcb_shm_id); if (!ext || !ext->present) { qCDebug(KWIN_CORE) << "SHM extension not available"; return false; } ScopedCPointer version(xcb_shm_query_version_reply(connection(), xcb_shm_query_version_unchecked(connection()), nullptr)); if (version.isNull()) { qCDebug(KWIN_CORE) << "Failed to get SHM extension version information"; return false; } m_pixmapFormat = version->pixmap_format; const int MAXSIZE = 4096 * 2048 * 4; // TODO check there are not larger windows m_shmId = shmget(IPC_PRIVATE, MAXSIZE, IPC_CREAT | 0600); if (m_shmId < 0) { qCDebug(KWIN_CORE) << "Failed to allocate SHM segment"; return false; } m_buffer = shmat(m_shmId, nullptr, 0 /*read/write*/); if (-1 == reinterpret_cast(m_buffer)) { qCDebug(KWIN_CORE) << "Failed to attach SHM segment"; shmctl(m_shmId, IPC_RMID, nullptr); return false; } shmctl(m_shmId, IPC_RMID, nullptr); m_segment = xcb_generate_id(connection()); const xcb_void_cookie_t cookie = xcb_shm_attach_checked(connection(), m_segment, m_shmId, false); ScopedCPointer error(xcb_request_check(connection(), cookie)); if (!error.isNull()) { qCDebug(KWIN_CORE) << "xcb_shm_attach error: " << error->error_code; shmdt(m_buffer); return false; } return true; } } // namespace Xcb } // namespace KWin