diff --git a/CMakeLists.txt b/CMakeLists.txt index d24dbe0f6..62d52f042 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,639 +1,635 @@ project(KWIN) set(PROJECT_VERSION "5.6.90") set(PROJECT_VERSION_MAJOR 5) cmake_minimum_required(VERSION 2.8.12 FATAL_ERROR) set(QT_MIN_VERSION "5.4.0") set(KF5_MIN_VERSION "5.12.0") set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules ${CMAKE_MODULE_PATH} ) find_package(ECM 0.0.11 REQUIRED NO_MODULE) include(FeatureSummary) include(WriteBasicConfigVersionFile) include(GenerateExportHeader) # where to look first for cmake modules, before ${CMAKE_ROOT}/Modules/ is checked set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR}) find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS Concurrent Core DBus Quick QuickWidgets Script UiTools Widgets X11Extras ) find_package(Qt5Test ${QT_MIN_VERSION} CONFIG QUIET) set_package_properties(Qt5Test PROPERTIES PURPOSE "Required for tests" TYPE OPTIONAL ) add_feature_info("Qt5Test" Qt5Test_FOUND "Required for building tests") if (NOT Qt5Test_FOUND) set(BUILD_TESTING OFF CACHE BOOL "Build the testing tree.") endif() include(KDEInstallDirs) include(KDECMakeSettings) include(KDECompilerSettings NO_POLICY_SCOPE) include(ECMInstallIcons) include(ECMOptionalAddSubdirectory) add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0 -DQT_USE_QSTRINGBUILDER) # require at least gcc 4.8 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU") if ("${CMAKE_CXX_COMPILER_VERSION}" VERSION_LESS "4.8") message(SEND_ERROR "Version ${CMAKE_CXX_COMPILER_VERSION} of the ${CMAKE_CXX_COMPILER_ID} C++ compiler is not supported. Please use version 4.8 or later.") endif() endif() find_package(Qt5Multimedia QUIET) set_package_properties(Qt5Multimedia PROPERTIES PURPOSE "Runtime-only dependency for effect video playback" TYPE RUNTIME ) # required frameworks by Core find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS Config ConfigWidgets CoreAddons Crash GlobalAccel I18n Init Notifications Package Plasma WidgetsAddons WindowSystem IconThemes IdleTime ) # required frameworks by config modules find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS Completion Declarative KCMUtils KIO NewStuff Service XmlGui ) find_package(Threads) set_package_properties(Threads PROPERTIES PURPOSE "Needed for VirtualTerminal support in KWin Wayland" TYPE REQUIRED ) # optional frameworks find_package(KF5Activities ${KF5_MIN_VERSION} CONFIG) set_package_properties(KF5Activities PROPERTIES PURPOSE "Enable building of KWin with kactivities support" TYPE OPTIONAL ) add_feature_info("KF5Activities" KF5Activities_FOUND "Enable building of KWin with kactivities support") find_package(KF5DocTools ${KF5_MIN_VERSION} CONFIG) set_package_properties(KF5DocTools PROPERTIES PURPOSE "Enable building documentation" TYPE OPTIONAL ) add_feature_info("KF5DocTools" KF5DocTools_FOUND "Enable building documentation") find_package(KDecoration2 CONFIG REQUIRED) find_package(KF5Wayland CONFIG REQUIRED) set_package_properties(KF5Wayland PROPERTIES TYPE REQUIRED ) find_package(KScreenLocker CONFIG REQUIRED) set_package_properties(KScreenLocker PROPERTIES TYPE REQUIRED PURPOSE "For screenlocker integration in kwin_wayland") find_package(Breeze ${PROJECT_VERSION} CONFIG) set_package_properties(Breeze PROPERTIES TYPE OPTIONAL PURPOSE "For setting the default window decoration plugin") if(${Breeze_FOUND}) if(${BREEZE_WITH_KDECORATION}) set(HAVE_BREEZE_DECO true) else() set(HAVE_BREEZE_DECO FALSE) endif() else() set(HAVE_BREEZE_DECO FALSE) endif() add_feature_info("Breeze-Decoration" HAVE_BREEZE_DECO "Default decoration plugin Breeze") find_package(EGL) set_package_properties(EGL PROPERTIES TYPE RUNTIME PURPOSE "Required to build KWin with EGL support" ) find_package(epoxy) set_package_properties(epoxy PROPERTIES DESCRIPTION "libepoxy" URL "http://github.com/anholt/libepoxy" TYPE REQUIRED PURPOSE "OpenGL dispatch library" ) find_package(Wayland 1.2 REQUIRED COMPONENTS Cursor OPTIONAL_COMPONENTS Egl) set_package_properties(Wayland PROPERTIES TYPE REQUIRED PURPOSE "Required for building KWin with Wayland support" ) add_feature_info("Wayland::EGL" Wayland_Egl_FOUND "Enable building of Wayland backend and QPA with EGL support.") set(HAVE_WAYLAND_EGL FALSE) if(Wayland_Egl_FOUND) set(HAVE_WAYLAND_EGL TRUE) endif() find_package(XKB 0.4.1) set_package_properties(XKB PROPERTIES TYPE REQUIRED PURPOSE "Required for building KWin with Wayland support" ) find_package(Libinput 0.10) set_package_properties(Libinput PROPERTIES TYPE OPTIONAL PURPOSE "Required for input handling on Wayland.") find_package(UDev) set_package_properties(UDev PROPERTIES URL "http://www.freedesktop.org/software/systemd/libudev/" DESCRIPTION "Linux device library." TYPE OPTIONAL PURPOSE "Required for input handling on Wayland." ) set(HAVE_INPUT FALSE) if (Libinput_FOUND AND UDEV_FOUND) set(HAVE_INPUT TRUE) endif() find_package(Libdrm) set_package_properties(Libdrm PROPERTIES TYPE OPTIONAL PURPOSE "Required for drm output on Wayland.") set(HAVE_DRM FALSE) if(Libdrm_FOUND AND UDEV_FOUND) set(HAVE_DRM TRUE) endif() find_package(gbm) set_package_properties(gbm PROPERTIES TYPE OPTIONAL PURPOSE "Required for egl ouput of drm backend.") set(HAVE_GBM FALSE) if(HAVE_DRM AND gbm_FOUND) set(HAVE_GBM TRUE) endif() find_package(libhybris) set_package_properties(libhybris PROPERTIES TYPE OPTIONAL PURPOSE "Required for libhybris backend") set(HAVE_LIBHYBRIS ${libhybris_FOUND}) find_package(X11) set_package_properties(X11 PROPERTIES DESCRIPTION "X11 libraries" URL "http://www.x.org" TYPE REQUIRED ) add_feature_info("XInput" X11_Xinput_FOUND "Required for poll-free mouse cursor updates") set(HAVE_X11_XINPUT ${X11_Xinput_FOUND}) # All the required XCB components find_package(XCB 1.10 REQUIRED COMPONENTS XCB XFIXES DAMAGE COMPOSITE SHAPE SYNC RENDER RANDR KEYSYMS IMAGE SHM GLX CURSOR OPTIONAL_COMPONENTS ICCCM ) set_package_properties(XCB PROPERTIES TYPE REQUIRED) # and the optional XCB dependencies if (XCB_ICCCM_VERSION VERSION_LESS "0.4") set(XCB_ICCCM_FOUND FALSE) endif() add_feature_info("XCB-ICCCM" XCB_ICCCM_FOUND "Required for building test applications for KWin") find_package(X11_XCB) set_package_properties(X11_XCB PROPERTIES PURPOSE "Required for building X11 windowed backend of kwin_wayland" TYPE OPTIONAL) # dependencies for QPA plugin find_package(Qt5PlatformSupport REQUIRED) find_package(Freetype REQUIRED) set_package_properties(Freetype PROPERTIES DESCRIPTION "A font rendering engine" URL "http://www.freetype.org" TYPE REQUIRED PURPOSE "Needed for KWin's QPA plugin." ) find_package(Fontconfig REQUIRED) set_package_properties(Fontconfig PROPERTIES DESCRIPTION "Font access configuration library" URL "http://www.freedesktop.org/wiki/Software/fontconfig" TYPE REQUIRED PURPOSE "Needed for KWin's QPA plugin." ) find_package(Xwayland) set_package_properties(Xwayland PROPERTIES URL "http://x.org" DESCRIPTION "Xwayland X server" TYPE RUNTIME PURPOSE "Needed for running kwin_wayland" ) ########### configure tests ############### include(CMakeDependentOption) option(KWIN_BUILD_DECORATIONS "Enable building of KWin decorations." ON) option(KWIN_BUILD_KCMS "Enable building of KWin configuration modules." ON) option(KWIN_BUILD_TABBOX "Enable building of KWin Tabbox functionality" ON) option(KWIN_BUILD_XRENDER_COMPOSITING "Enable building of KWin with XRender Compositing support" ON) cmake_dependent_option(KWIN_BUILD_ACTIVITIES "Enable building of KWin with kactivities support" ON "KF5Activities_FOUND" OFF) # Binary name of KWin set(KWIN_NAME "kwin") set(KWIN_INTERNAL_NAME_X11 "kwin_x11") set(KWIN_INTERNAL_NAME_WAYLAND "kwin_wayland") set(KWIN_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) # KWIN_HAVE_XRENDER_COMPOSITING - whether XRender-based compositing support is available: may be disabled if( KWIN_BUILD_XRENDER_COMPOSITING ) set( KWIN_HAVE_XRENDER_COMPOSITING 1 ) endif() include_directories(${XKB_INCLUDE_DIR}) include_directories(${epoxy_INCLUDE_DIR}) set(HAVE_EPOXY_GLX ${epoxy_HAS_GLX}) # for things that are also used by kwin libraries configure_file(libkwineffects/kwinconfig.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/libkwineffects/kwinconfig.h ) # for kwin internal things set(HAVE_X11_XCB ${X11_XCB_FOUND}) include(CheckIncludeFile) include(CheckIncludeFiles) include(CheckSymbolExists) check_include_files(unistd.h HAVE_UNISTD_H) check_include_files(malloc.h HAVE_MALLOC_H) check_include_file("sys/prctl.h" HAVE_SYS_PRCTL_H) check_symbol_exists(PR_SET_DUMPABLE "sys/prctl.h" HAVE_PR_SET_DUMPABLE) add_feature_info("prctl-dumpable" HAVE_PR_SET_DUMPABLE "Required for disallow ptrace on kwin_wayland process") configure_file(config-kwin.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-kwin.h ) ########### global ############### set(kwin_effects_dbus_xml ${CMAKE_CURRENT_SOURCE_DIR}/org.kde.kwin.Effects.xml) include_directories(BEFORE ${CMAKE_CURRENT_BINARY_DIR}/libkwineffects ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/libkwineffects ${CMAKE_CURRENT_SOURCE_DIR}/effects ${CMAKE_CURRENT_SOURCE_DIR}/tabbox ) add_subdirectory( libkwineffects ) add_subdirectory( killer ) if(KWIN_BUILD_KCMS) add_subdirectory( kcmkwin ) endif() if( KWIN_BUILD_DECORATIONS ) add_subdirectory( clients ) endif() add_subdirectory( data ) add_subdirectory( effects ) add_subdirectory( scripts ) add_subdirectory( tabbox ) add_subdirectory(scripting) add_definitions(-DKDE_DEFAULT_DEBUG_AREA=1212) ########### next target ############### set(kwin_KDEINIT_SRCS workspace.cpp dbusinterface.cpp abstract_client.cpp client.cpp client_machine.cpp cursor.cpp debug_console.cpp tabgroup.cpp focuschain.cpp globalshortcuts.cpp input.cpp keyboard_input.cpp pointer_input.cpp touch_input.cpp netinfo.cpp placement.cpp atoms.cpp utils.cpp layers.cpp main.cpp options.cpp outline.cpp events.cpp killwindow.cpp geometrytip.cpp screens.cpp shadow.cpp sm.cpp group.cpp manage.cpp overlaywindow.cpp activation.cpp useractions.cpp geometry.cpp rules.cpp composite.cpp toplevel.cpp unmanaged.cpp scene.cpp scene_xrender.cpp scene_opengl.cpp scene_qpainter.cpp thumbnailitem.cpp lanczosfilter.cpp deleted.cpp effects.cpp effectloader.cpp compositingprefs.cpp virtualdesktops.cpp xcbutils.cpp x11eventfilter.cpp logind.cpp screenedge.cpp scripting/scripting.cpp scripting/workspace_wrapper.cpp scripting/meta.cpp scripting/scriptedeffect.cpp scripting/scriptingutils.cpp scripting/timer.cpp scripting/scripting_model.cpp scripting/dbuscall.cpp scripting/screenedgeitem.cpp scripting/scripting_logging.cpp decorations/decoratedclient.cpp decorations/decorationbridge.cpp decorations/decorationpalette.cpp decorations/settings.cpp decorations/decorationrenderer.cpp decorations/decorations_logging.cpp abstract_egl_backend.cpp eglonxbackend.cpp platform.cpp shell_client.cpp wayland_server.cpp wayland_cursor_theme.cpp ) -if(HAVE_EPOXY_GLX) - set(kwin_KDEINIT_SRCS ${kwin_KDEINIT_SRCS} glxbackend.cpp) -endif() - if(KWIN_BUILD_TABBOX) set( kwin_KDEINIT_SRCS ${kwin_KDEINIT_SRCS} tabbox/tabbox.cpp tabbox/clientmodel.cpp tabbox/desktopchain.cpp tabbox/desktopmodel.cpp tabbox/switcheritem.cpp tabbox/tabboxconfig.cpp tabbox/tabboxhandler.cpp tabbox/tabbox_logging.cpp ) endif() if(KWIN_BUILD_ACTIVITIES) set( kwin_KDEINIT_SRCS ${kwin_KDEINIT_SRCS} activities.cpp ) endif() if(UDEV_FOUND) set(kwin_KDEINIT_SRCS ${kwin_KDEINIT_SRCS} udev.cpp ) endif() if(HAVE_INPUT) set(kwin_KDEINIT_SRCS ${kwin_KDEINIT_SRCS} libinput/context.cpp libinput/connection.cpp libinput/events.cpp libinput/libinput_logging.cpp virtual_terminal.cpp ) endif() kconfig_add_kcfg_files(kwin_KDEINIT_SRCS settings.kcfgc) qt5_add_dbus_adaptor( kwin_KDEINIT_SRCS org.kde.KWin.xml dbusinterface.h KWin::DBusInterface ) qt5_add_dbus_adaptor( kwin_KDEINIT_SRCS org.kde.kwin.Compositing.xml dbusinterface.h KWin::CompositorDBusInterface ) qt5_add_dbus_adaptor( kwin_KDEINIT_SRCS ${kwin_effects_dbus_xml} effects.h KWin::EffectsHandlerImpl ) qt5_add_dbus_interface( kwin_KDEINIT_SRCS ${CMAKE_CURRENT_SOURCE_DIR}/org.freedesktop.ScreenSaver.xml screenlocker_interface) qt5_add_resources( kwin_KDEINIT_SRCS resources.qrc ) ki18n_wrap_ui(kwin_KDEINIT_SRCS debug_console.ui shortcutdialog.ui ) ########### target link libraries ############### set(kwin_OWN_LIBS kwineffects kwinxrenderutils kwin4_effect_builtins ) set(kwin_QT_LIBS Qt5::Concurrent Qt5::DBus Qt5::Quick Qt5::Script Qt5::X11Extras ) set(kwin_KDE_LIBS KF5::ConfigCore KF5::CoreAddons KF5::ConfigWidgets KF5::Crash KF5::GlobalAccel KF5::GlobalAccelPrivate KF5::I18n KF5::Notifications KF5::Package KF5::Plasma KF5::WindowSystem KDecoration2::KDecoration KDecoration2::KDecoration2Private PW::KScreenLocker ) set(kwin_XLIB_LIBS ${X11_X11_LIB} ${X11_ICE_LIB} ${X11_SM_LIB} ) if(X11_Xinput_FOUND) set(kwin_XLIB_LIBS ${kwin_XLIB_LIBS} ${X11_Xinput_LIB}) endif() set(kwin_XCB_LIBS XCB::XCB XCB::XFIXES XCB::DAMAGE XCB::COMPOSITE XCB::SHAPE XCB::SYNC XCB::RENDER XCB::RANDR XCB::KEYSYMS XCB::SHM XCB::GLX XCB::CURSOR ) set(kwin_WAYLAND_LIBS XKB::XKB KF5::WaylandClient KF5::WaylandServer Wayland::Cursor ${CMAKE_THREAD_LIBS_INIT} ) if(KWIN_BUILD_ACTIVITIES) set(kwin_KDE_LIBS ${kwin_KDE_LIBS} KF5::Activities) endif() set(kwinLibs ${kwin_OWN_LIBS} ${kwin_QT_LIBS} ${kwin_KDE_LIBS} ${kwin_XLIB_LIBS} ${kwin_XCB_LIBS} ${kwin_WAYLAND_LIBS} ) if(UDEV_FOUND) set(kwinLibs ${kwinLibs} ${UDEV_LIBS}) endif() if(HAVE_INPUT) set(kwinLibs ${kwinLibs} Libinput::Libinput) endif() add_library(kwin SHARED ${kwin_KDEINIT_SRCS}) set_target_properties(kwin PROPERTIES VERSION ${PROJECT_VERSION} SOVERSION ${PROJECT_VERSION_MAJOR} ) target_link_libraries(kwin ${kwinLibs}) generate_export_header(kwin EXPORT_FILE_NAME kwin_export.h) target_link_libraries(kwin kwinglutils ${epoxy_LIBRARY}) # -ldl used by OpenGL code find_library(DL_LIBRARY dl) if (DL_LIBRARY) target_link_libraries(kwin ${DL_LIBRARY}) endif() kf5_add_kdeinit_executable(kwin_x11 main_x11.cpp) target_link_libraries(kdeinit_kwin_x11 kwin) install(TARGETS kwin ${INSTALL_TARGETS_DEFAULT_ARGS} LIBRARY NAMELINK_SKIP ) install(TARGETS kdeinit_kwin_x11 ${INSTALL_TARGETS_DEFAULT_ARGS} ) install(TARGETS kwin_x11 ${INSTALL_TARGETS_DEFAULT_ARGS} ) add_executable(kwin_wayland main_wayland.cpp) target_link_libraries(kwin_wayland kwin) install(TARGETS kwin_wayland ${INSTALL_TARGETS_DEFAULT_ARGS} ) add_subdirectory(plugins) ########### install files ############### install( FILES kwin.kcfg DESTINATION ${KCFG_INSTALL_DIR} RENAME ${KWIN_NAME}.kcfg ) install( FILES kwin.notifyrc DESTINATION ${KNOTIFYRC_INSTALL_DIR} RENAME ${KWIN_NAME}.notifyrc) install( FILES org.kde.KWin.xml org.kde.kwin.Compositing.xml org.kde.kwin.Effects.xml DESTINATION ${KDE_INSTALL_DBUSINTERFACEDIR} ) install( FILES ${CMAKE_CURRENT_BINARY_DIR}/kwin_export.h DESTINATION ${INCLUDE_INSTALL_DIR} COMPONENT Devel) # Install the KWin/Script service type install( FILES scripting/kwinscript.desktop DESTINATION ${SERVICETYPES_INSTALL_DIR} ) ecm_install_icons( ICONS 16-apps-kwin.png 32-apps-kwin.png 48-apps-kwin.png sc-apps-kwin.svgz DESTINATION ${ICON_INSTALL_DIR} THEME hicolor ) add_subdirectory(qml) add_subdirectory(autotests) add_subdirectory(tests) if (KF5DocTools_FOUND) add_subdirectory(doc) endif() feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES) include(ECMPackageConfigHelpers) set(CMAKECONFIG_INSTALL_DIR "${CMAKECONFIG_INSTALL_PREFIX}/KWinDBusInterface") ecm_configure_package_config_file(KWinDBusInterfaceConfig.cmake.in "${CMAKE_CURRENT_BINARY_DIR}/KWinDBusInterfaceConfig.cmake" PATH_VARS KDE_INSTALL_DBUSINTERFACEDIR INSTALL_DESTINATION ${CMAKECONFIG_INSTALL_DIR}) install(FILES ${CMAKE_CURRENT_BINARY_DIR}/KWinDBusInterfaceConfig.cmake DESTINATION ${CMAKECONFIG_INSTALL_DIR}) diff --git a/overlaywindow.h b/overlaywindow.h index 4d7b171a1..e1ec3ec2f 100644 --- a/overlaywindow.h +++ b/overlaywindow.h @@ -1,56 +1,58 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2011 Arthur Arlt 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 . *********************************************************************/ #ifndef KWIN_OVERLAYWINDOW_H #define KWIN_OVERLAYWINDOW_H #include // xcb #include +#include + namespace KWin { -class OverlayWindow { +class KWIN_EXPORT OverlayWindow { public: OverlayWindow(); ~OverlayWindow(); /// Creates XComposite overlay window, call initOverlay() afterwards bool create(); /// Init overlay and the destination window in it void setup(xcb_window_t window); void show(); void hide(); // hides and resets overlay window void setShape(const QRegion& reg); void resize(const QSize &size); /// Destroys XComposite overlay window void destroy(); xcb_window_t window() const; bool isVisible() const; void setVisibility(bool visible); private: void setNoneBackgroundPixmap(xcb_window_t window); void setupInputShape(xcb_window_t window); bool m_visible; bool m_shown; // For showOverlay() QRegion m_shape; xcb_window_t m_window; }; } // namespace #endif //KWIN_OVERLAYWINDOW_H diff --git a/plugins/platforms/x11/standalone/CMakeLists.txt b/plugins/platforms/x11/standalone/CMakeLists.txt index 185b7fde1..aec403975 100644 --- a/plugins/platforms/x11/standalone/CMakeLists.txt +++ b/plugins/platforms/x11/standalone/CMakeLists.txt @@ -1,15 +1,19 @@ set(X11PLATFORM_SOURCES logging.cpp x11_platform.cpp screens_xrandr.cpp ) +if(HAVE_EPOXY_GLX) + set(X11PLATFORM_SOURCES ${X11PLATFORM_SOURCES} glxbackend.cpp) +endif() + add_library(KWinX11Platform MODULE ${X11PLATFORM_SOURCES}) target_link_libraries(KWinX11Platform kwin Qt5::X11Extras) install( TARGETS KWinX11Platform DESTINATION ${PLUGIN_INSTALL_DIR}/org.kde.kwin.platforms/ ) diff --git a/glxbackend.cpp b/plugins/platforms/x11/standalone/glxbackend.cpp similarity index 95% rename from glxbackend.cpp rename to plugins/platforms/x11/standalone/glxbackend.cpp index 32fea4dd6..94ef225ce 100644 --- a/glxbackend.cpp +++ b/plugins/platforms/x11/standalone/glxbackend.cpp @@ -1,881 +1,881 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2006 Lubos Lunak Copyright (C) 2012 Martin Gräßlin Based on glcompmgr code by Felix Bellaby. Using code from Compiz and Beryl. 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 . *********************************************************************/ // own #include "glxbackend.h" +#include "logging.h" // kwin #include "options.h" -#include "utils.h" #include "overlaywindow.h" #include "composite.h" #include "screens.h" #include "xcbutils.h" // kwin libs #include #include // Qt #include #include // system #include #include #include #ifndef XCB_GLX_BUFFER_SWAP_COMPLETE #define XCB_GLX_BUFFER_SWAP_COMPLETE 1 typedef struct xcb_glx_buffer_swap_complete_event_t { uint8_t response_type; /**< */ uint8_t pad0; /**< */ uint16_t sequence; /**< */ uint16_t event_type; /**< */ uint8_t pad1[2]; /**< */ xcb_glx_drawable_t drawable; /**< */ uint32_t ust_hi; /**< */ uint32_t ust_lo; /**< */ uint32_t msc_hi; /**< */ uint32_t msc_lo; /**< */ uint32_t sbc; /**< */ } xcb_glx_buffer_swap_complete_event_t; #endif #include #if __cplusplus <= 201103L namespace std { // C++-14 template unique_ptr make_unique(Args&&... args) { return unique_ptr(new T(std::forward(args)...)); } } #endif namespace KWin { SwapEventFilter::SwapEventFilter(xcb_drawable_t drawable, xcb_glx_drawable_t glxDrawable) : X11EventFilter(Xcb::Extensions::self()->glxEventBase() + XCB_GLX_BUFFER_SWAP_COMPLETE), m_drawable(drawable), m_glxDrawable(glxDrawable) { } bool SwapEventFilter::event(xcb_generic_event_t *event) { xcb_glx_buffer_swap_complete_event_t *ev = reinterpret_cast(event); // The drawable field is the X drawable when the event was synthesized // by a WireToEvent handler, and the GLX drawable when the event was // received over the wire if (ev->drawable == m_drawable || ev->drawable == m_glxDrawable) { Compositor::self()->bufferSwapComplete(); return true; } return false; } // ----------------------------------------------------------------------- GlxBackend::GlxBackend() : OpenGLBackend() , m_overlayWindow(new OverlayWindow()) , window(None) , fbconfig(NULL) , glxWindow(None) , ctx(nullptr) , m_bufferAge(0) , haveSwapInterval(false) { } static bool gs_tripleBufferUndetected = true; static bool gs_tripleBufferNeedsDetection = false; GlxBackend::~GlxBackend() { if (isFailed()) { m_overlayWindow->destroy(); } // TODO: cleanup in error case // do cleanup after initBuffer() cleanupGL(); doneCurrent(); gs_tripleBufferUndetected = true; gs_tripleBufferNeedsDetection = false; if (ctx) glXDestroyContext(display(), ctx); if (glxWindow) glXDestroyWindow(display(), glxWindow); if (window) XDestroyWindow(display(), window); qDeleteAll(m_fbconfigHash); m_fbconfigHash.clear(); overlayWindow()->destroy(); delete m_overlayWindow; } void GlxBackend::init() { initGLX(); // Require at least GLX 1.3 if (!hasGLXVersion(1, 3)) { setFailed(QStringLiteral("Requires at least GLX 1.3")); return; } initVisualDepthHashTable(); if (!initBuffer()) { setFailed(QStringLiteral("Could not initialize the buffer")); return; } if (!initRenderingContext()) { setFailed(QStringLiteral("Could not initialize rendering context")); return; } // Initialize OpenGL GLPlatform *glPlatform = GLPlatform::instance(); glPlatform->detect(GlxPlatformInterface); if (GLPlatform::instance()->driver() == Driver_Intel) options->setUnredirectFullscreen(false); // bug #252817 options->setGlPreferBufferSwap(options->glPreferBufferSwap()); // resolve autosetting if (options->glPreferBufferSwap() == Options::AutoSwapStrategy) options->setGlPreferBufferSwap('e'); // for unknown drivers - should not happen glPlatform->printResults(); initGL(GlxPlatformInterface); // Check whether certain features are supported m_haveMESACopySubBuffer = hasGLExtension(QByteArrayLiteral("GLX_MESA_copy_sub_buffer")); m_haveMESASwapControl = hasGLExtension(QByteArrayLiteral("GLX_MESA_swap_control")); m_haveEXTSwapControl = hasGLExtension(QByteArrayLiteral("GLX_EXT_swap_control")); m_haveSGISwapControl = hasGLExtension(QByteArrayLiteral("GLX_SGI_swap_control")); // only enable Intel swap event if env variable is set, see BUG 342582 m_haveINTELSwapEvent = hasGLExtension(QByteArrayLiteral("GLX_INTEL_swap_event")) && qgetenv("KWIN_USE_INTEL_SWAP_EVENT") == QByteArrayLiteral("1"); if (m_haveINTELSwapEvent) { m_swapEventFilter = std::make_unique(window, glxWindow); glXSelectEvent(display(), glxWindow, GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK); } haveSwapInterval = m_haveMESASwapControl || m_haveEXTSwapControl || m_haveSGISwapControl; setSupportsBufferAge(false); if (hasGLExtension(QByteArrayLiteral("GLX_EXT_buffer_age"))) { const QByteArray useBufferAge = qgetenv("KWIN_USE_BUFFER_AGE"); if (useBufferAge != "0") setSupportsBufferAge(true); } setSyncsToVBlank(false); setBlocksForRetrace(false); haveWaitSync = false; gs_tripleBufferNeedsDetection = false; m_swapProfiler.init(); const bool wantSync = options->glPreferBufferSwap() != Options::NoSwapEncourage; if (wantSync && glXIsDirect(display(), ctx)) { if (haveSwapInterval) { // glXSwapInterval is preferred being more reliable setSwapInterval(1); setSyncsToVBlank(true); const QByteArray tripleBuffer = qgetenv("KWIN_TRIPLE_BUFFER"); if (!tripleBuffer.isEmpty()) { setBlocksForRetrace(qstrcmp(tripleBuffer, "0") == 0); gs_tripleBufferUndetected = false; } gs_tripleBufferNeedsDetection = gs_tripleBufferUndetected; } else if (hasGLExtension(QByteArrayLiteral("GLX_SGI_video_sync"))) { unsigned int sync; if (glXGetVideoSyncSGI(&sync) == 0 && glXWaitVideoSyncSGI(1, 0, &sync) == 0) { setSyncsToVBlank(true); setBlocksForRetrace(true); haveWaitSync = true; } else - qCWarning(KWIN_CORE) << "NO VSYNC! glXSwapInterval is not supported, glXWaitVideoSync is supported but broken"; + qCWarning(KWIN_X11STANDALONE) << "NO VSYNC! glXSwapInterval is not supported, glXWaitVideoSync is supported but broken"; } else - qCWarning(KWIN_CORE) << "NO VSYNC! neither glSwapInterval nor glXWaitVideoSync are supported"; + qCWarning(KWIN_X11STANDALONE) << "NO VSYNC! neither glSwapInterval nor glXWaitVideoSync are supported"; } else { // disable v-sync (if possible) setSwapInterval(0); } if (glPlatform->isVirtualBox()) { // VirtualBox does not support glxQueryDrawable // this should actually be in kwinglutils_funcs, but QueryDrawable seems not to be provided by an extension // and the GLPlatform has not been initialized at the moment when initGLX() is called. glXQueryDrawable = NULL; } setIsDirectRendering(bool(glXIsDirect(display(), ctx))); - qCDebug(KWIN_CORE) << "Direct rendering:" << isDirectRendering(); + qCDebug(KWIN_X11STANDALONE) << "Direct rendering:" << isDirectRendering(); } bool GlxBackend::initRenderingContext() { const bool direct = true; // Use glXCreateContextAttribsARB() when it's available if (hasGLExtension(QByteArrayLiteral("GLX_ARB_create_context"))) { const int attribs_31_core_robustness[] = { GLX_CONTEXT_MAJOR_VERSION_ARB, 3, GLX_CONTEXT_MINOR_VERSION_ARB, 1, GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB, GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_LOSE_CONTEXT_ON_RESET_ARB, 0 }; const int attribs_31_core[] = { GLX_CONTEXT_MAJOR_VERSION_ARB, 3, GLX_CONTEXT_MINOR_VERSION_ARB, 1, 0 }; const int attribs_legacy_robustness[] = { GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB, GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_LOSE_CONTEXT_ON_RESET_ARB, 0 }; const int attribs_legacy[] = { GLX_CONTEXT_MAJOR_VERSION_ARB, 1, GLX_CONTEXT_MINOR_VERSION_ARB, 2, 0 }; const bool have_robustness = hasGLExtension(QByteArrayLiteral("GLX_ARB_create_context_robustness")); // Try to create a 3.1 context first if (options->glCoreProfile()) { if (have_robustness) ctx = glXCreateContextAttribsARB(display(), fbconfig, 0, direct, attribs_31_core_robustness); if (!ctx) ctx = glXCreateContextAttribsARB(display(), fbconfig, 0, direct, attribs_31_core); } if (!ctx && have_robustness) ctx = glXCreateContextAttribsARB(display(), fbconfig, 0, direct, attribs_legacy_robustness); if (!ctx) ctx = glXCreateContextAttribsARB(display(), fbconfig, 0, direct, attribs_legacy); } if (!ctx) ctx = glXCreateNewContext(display(), fbconfig, GLX_RGBA_TYPE, NULL, direct); if (!ctx) { - qCDebug(KWIN_CORE) << "Failed to create an OpenGL context."; + qCDebug(KWIN_X11STANDALONE) << "Failed to create an OpenGL context."; return false; } if (!glXMakeCurrent(display(), glxWindow, ctx)) { - qCDebug(KWIN_CORE) << "Failed to make the OpenGL context current."; + qCDebug(KWIN_X11STANDALONE) << "Failed to make the OpenGL context current."; glXDestroyContext(display(), ctx); ctx = 0; return false; } return true; } bool GlxBackend::initBuffer() { if (!initFbConfig()) return false; if (overlayWindow()->create()) { xcb_connection_t * const c = connection(); // Try to create double-buffered window in the overlay xcb_visualid_t visual; glXGetFBConfigAttrib(display(), fbconfig, GLX_VISUAL_ID, (int *) &visual); if (!visual) { - qCCritical(KWIN_CORE) << "The GLXFBConfig does not have an associated X visual"; + qCCritical(KWIN_X11STANDALONE) << "The GLXFBConfig does not have an associated X visual"; return false; } xcb_colormap_t colormap = xcb_generate_id(c); xcb_create_colormap(c, false, colormap, rootWindow(), visual); const QSize size = screens()->size(); window = xcb_generate_id(c); xcb_create_window(c, visualDepth(visual), window, overlayWindow()->window(), 0, 0, size.width(), size.height(), 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, visual, XCB_CW_COLORMAP, &colormap); glxWindow = glXCreateWindow(display(), fbconfig, window, NULL); overlayWindow()->setup(window); } else { - qCCritical(KWIN_CORE) << "Failed to create overlay window"; + qCCritical(KWIN_X11STANDALONE) << "Failed to create overlay window"; return false; } return true; } bool GlxBackend::initFbConfig() { const int attribs[] = { GLX_RENDER_TYPE, GLX_RGBA_BIT, GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT, GLX_RED_SIZE, 1, GLX_GREEN_SIZE, 1, GLX_BLUE_SIZE, 1, GLX_ALPHA_SIZE, 0, GLX_DEPTH_SIZE, 0, GLX_STENCIL_SIZE, 0, GLX_CONFIG_CAVEAT, GLX_NONE, GLX_DOUBLEBUFFER, true, 0 }; // Try to find a double buffered configuration int count = 0; GLXFBConfig *configs = glXChooseFBConfig(display(), DefaultScreen(display()), attribs, &count); struct FBConfig { GLXFBConfig config; int depth; int stencil; }; std::deque candidates; for (int i = 0; i < count; i++) { int depth, stencil; glXGetFBConfigAttrib(display(), configs[i], GLX_DEPTH_SIZE, &depth); glXGetFBConfigAttrib(display(), configs[i], GLX_STENCIL_SIZE, &stencil); candidates.emplace_back(FBConfig{configs[i], depth, stencil}); } if (count > 0) XFree(configs); std::stable_sort(candidates.begin(), candidates.end(), [](const FBConfig &left, const FBConfig &right) { if (left.depth < right.depth) return true; if (left.stencil < right.stencil) return true; return false; }); if (candidates.size() > 0) { fbconfig = candidates.front().config; int fbconfig_id, visual_id, red, green, blue, alpha, depth, stencil; glXGetFBConfigAttrib(display(), fbconfig, GLX_FBCONFIG_ID, &fbconfig_id); glXGetFBConfigAttrib(display(), fbconfig, GLX_VISUAL_ID, &visual_id); glXGetFBConfigAttrib(display(), fbconfig, GLX_RED_SIZE, &red); glXGetFBConfigAttrib(display(), fbconfig, GLX_GREEN_SIZE, &green); glXGetFBConfigAttrib(display(), fbconfig, GLX_BLUE_SIZE, &blue); glXGetFBConfigAttrib(display(), fbconfig, GLX_ALPHA_SIZE, &alpha); glXGetFBConfigAttrib(display(), fbconfig, GLX_DEPTH_SIZE, &depth); glXGetFBConfigAttrib(display(), fbconfig, GLX_STENCIL_SIZE, &stencil); - qCDebug(KWIN_CORE, "Choosing GLXFBConfig %#x X visual %#x depth %d RGBA %d:%d:%d:%d ZS %d:%d", + qCDebug(KWIN_X11STANDALONE, "Choosing GLXFBConfig %#x X visual %#x depth %d RGBA %d:%d:%d:%d ZS %d:%d", fbconfig_id, visual_id, visualDepth(visual_id), red, green, blue, alpha, depth, stencil); } if (fbconfig == nullptr) { - qCCritical(KWIN_CORE) << "Failed to find a usable framebuffer configuration"; + qCCritical(KWIN_X11STANDALONE) << "Failed to find a usable framebuffer configuration"; return false; } return true; } void GlxBackend::initVisualDepthHashTable() { const xcb_setup_t *setup = xcb_get_setup(connection()); for (auto screen = xcb_setup_roots_iterator(setup); screen.rem; xcb_screen_next(&screen)) { for (auto depth = xcb_screen_allowed_depths_iterator(screen.data); depth.rem; xcb_depth_next(&depth)) { const int len = xcb_depth_visuals_length(depth.data); const xcb_visualtype_t *visuals = xcb_depth_visuals(depth.data); for (int i = 0; i < len; i++) m_visualDepthHash.insert(visuals[i].visual_id, depth.data->depth); } } } int GlxBackend::visualDepth(xcb_visualid_t visual) const { return m_visualDepthHash.value(visual); } FBConfigInfo *GlxBackend::infoForVisual(xcb_visualid_t visual) { auto it = m_fbconfigHash.constFind(visual); if (it != m_fbconfigHash.constEnd()) { return it.value(); } FBConfigInfo *info = new FBConfigInfo; m_fbconfigHash.insert(visual, info); info->fbconfig = nullptr; info->bind_texture_format = 0; info->texture_targets = 0; info->y_inverted = 0; info->mipmap = 0; const xcb_render_pictformat_t format = XRenderUtils::findPictFormat(visual); const xcb_render_directformat_t *direct = XRenderUtils::findPictFormatInfo(format); if (!direct) { - qCCritical(KWIN_CORE).nospace() << "Could not find a picture format for visual 0x" << hex << visual; + qCCritical(KWIN_X11STANDALONE).nospace() << "Could not find a picture format for visual 0x" << hex << visual; return info; } const int red_bits = bitCount(direct->red_mask); const int green_bits = bitCount(direct->green_mask); const int blue_bits = bitCount(direct->blue_mask); const int alpha_bits = bitCount(direct->alpha_mask); const int depth = visualDepth(visual); const auto rgb_sizes = std::tie(red_bits, green_bits, blue_bits); const int attribs[] = { GLX_RENDER_TYPE, GLX_RGBA_BIT, GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT | GLX_PIXMAP_BIT, GLX_X_VISUAL_TYPE, GLX_TRUE_COLOR, GLX_X_RENDERABLE, True, GLX_CONFIG_CAVEAT, int(GLX_DONT_CARE), // The ARGB32 visual is marked non-conformant in Catalyst GLX_BUFFER_SIZE, red_bits + green_bits + blue_bits + alpha_bits, GLX_RED_SIZE, red_bits, GLX_GREEN_SIZE, green_bits, GLX_BLUE_SIZE, blue_bits, GLX_ALPHA_SIZE, alpha_bits, GLX_STENCIL_SIZE, 0, GLX_DEPTH_SIZE, 0, 0 }; int count = 0; GLXFBConfig *configs = glXChooseFBConfig(display(), DefaultScreen(display()), attribs, &count); if (count < 1) { - qCCritical(KWIN_CORE).nospace() << "Could not find a framebuffer configuration for visual 0x" << hex << visual; + qCCritical(KWIN_X11STANDALONE).nospace() << "Could not find a framebuffer configuration for visual 0x" << hex << visual; return info; } struct FBConfig { GLXFBConfig config; int depth; int stencil; int format; }; std::deque candidates; for (int i = 0; i < count; i++) { int red, green, blue; glXGetFBConfigAttrib(display(), configs[i], GLX_RED_SIZE, &red); glXGetFBConfigAttrib(display(), configs[i], GLX_GREEN_SIZE, &green); glXGetFBConfigAttrib(display(), configs[i], GLX_BLUE_SIZE, &blue); if (std::tie(red, green, blue) != rgb_sizes) continue; xcb_visualid_t visual; glXGetFBConfigAttrib(display(), configs[i], GLX_VISUAL_ID, (int *) &visual); if (visualDepth(visual) != depth) continue; int bind_rgb, bind_rgba; glXGetFBConfigAttrib(display(), configs[i], GLX_BIND_TO_TEXTURE_RGBA_EXT, &bind_rgba); glXGetFBConfigAttrib(display(), configs[i], GLX_BIND_TO_TEXTURE_RGB_EXT, &bind_rgb); if (!bind_rgb && !bind_rgba) continue; int depth, stencil; glXGetFBConfigAttrib(display(), configs[i], GLX_DEPTH_SIZE, &depth); glXGetFBConfigAttrib(display(), configs[i], GLX_STENCIL_SIZE, &stencil); int texture_format; if (alpha_bits) texture_format = bind_rgba ? GLX_TEXTURE_FORMAT_RGBA_EXT : GLX_TEXTURE_FORMAT_RGB_EXT; else texture_format = bind_rgb ? GLX_TEXTURE_FORMAT_RGB_EXT : GLX_TEXTURE_FORMAT_RGBA_EXT; candidates.emplace_back(FBConfig{configs[i], depth, stencil, texture_format}); } if (count > 0) XFree(configs); std::stable_sort(candidates.begin(), candidates.end(), [](const FBConfig &left, const FBConfig &right) { if (left.depth < right.depth) return true; if (left.stencil < right.stencil) return true; return false; }); if (candidates.size() > 0) { const FBConfig &candidate = candidates.front(); int y_inverted, texture_targets; glXGetFBConfigAttrib(display(), candidate.config, GLX_BIND_TO_TEXTURE_TARGETS_EXT, &texture_targets); glXGetFBConfigAttrib(display(), candidate.config, GLX_Y_INVERTED_EXT, &y_inverted); info->fbconfig = candidate.config; info->bind_texture_format = candidate.format; info->texture_targets = texture_targets; info->y_inverted = y_inverted; info->mipmap = 0; } if (info->fbconfig) { int fbc_id = 0; int visual_id = 0; glXGetFBConfigAttrib(display(), info->fbconfig, GLX_FBCONFIG_ID, &fbc_id); glXGetFBConfigAttrib(display(), info->fbconfig, GLX_VISUAL_ID, &visual_id); - qCDebug(KWIN_CORE).nospace() << "Using FBConfig 0x" << hex << fbc_id << " for visual 0x" << hex << visual_id; + qCDebug(KWIN_X11STANDALONE).nospace() << "Using FBConfig 0x" << hex << fbc_id << " for visual 0x" << hex << visual_id; } return info; } void GlxBackend::setSwapInterval(int interval) { if (m_haveEXTSwapControl) glXSwapIntervalEXT(display(), glxWindow, interval); else if (m_haveMESASwapControl) glXSwapIntervalMESA(interval); else if (m_haveSGISwapControl) glXSwapIntervalSGI(interval); } void GlxBackend::waitSync() { // NOTE that vsync has no effect with indirect rendering if (haveWaitSync) { uint sync; #if 0 // TODO: why precisely is this important? // the sync counter /can/ perform multiple steps during glXGetVideoSync & glXWaitVideoSync // but this only leads to waiting for two frames??!? glXGetVideoSync(&sync); glXWaitVideoSync(2, (sync + 1) % 2, &sync); #else glXWaitVideoSyncSGI(1, 0, &sync); #endif } } void GlxBackend::present() { if (lastDamage().isEmpty()) return; const QSize &screenSize = screens()->size(); const QRegion displayRegion(0, 0, screenSize.width(), screenSize.height()); const bool fullRepaint = supportsBufferAge() || (lastDamage() == displayRegion); if (fullRepaint) { if (m_haveINTELSwapEvent) Compositor::self()->aboutToSwapBuffers(); if (haveSwapInterval) { if (gs_tripleBufferNeedsDetection) { glXWaitGL(); m_swapProfiler.begin(); } glXSwapBuffers(display(), glxWindow); if (gs_tripleBufferNeedsDetection) { glXWaitGL(); if (char result = m_swapProfiler.end()) { gs_tripleBufferUndetected = gs_tripleBufferNeedsDetection = false; if (result == 'd' && GLPlatform::instance()->driver() == Driver_NVidia) { // TODO this is a workaround, we should get __GL_YIELD set before libGL checks it if (qstrcmp(qgetenv("__GL_YIELD"), "USLEEP")) { options->setGlPreferBufferSwap(0); setSwapInterval(0); result = 0; // hint proper behavior - qCWarning(KWIN_CORE) << "\nIt seems you are using the nvidia driver without triple buffering\n" + qCWarning(KWIN_X11STANDALONE) << "\nIt seems you are using the nvidia driver without triple buffering\n" "You must export __GL_YIELD=\"USLEEP\" to prevent large CPU overhead on synced swaps\n" "Preferably, enable the TripleBuffer Option in the xorg.conf Device\n" "For this reason, the tearing prevention has been disabled.\n" "See https://bugs.kde.org/show_bug.cgi?id=322060\n"; } } setBlocksForRetrace(result == 'd'); } } else if (blocksForRetrace()) { // at least the nvidia blob manages to swap async, ie. return immediately on double // buffering - what messes our timing calculation and leads to laggy behavior #346275 glXWaitGL(); } } else { waitSync(); glXSwapBuffers(display(), glxWindow); } if (supportsBufferAge()) { glXQueryDrawable(display(), glxWindow, GLX_BACK_BUFFER_AGE_EXT, (GLuint *) &m_bufferAge); } } else if (m_haveMESACopySubBuffer) { foreach (const QRect & r, lastDamage().rects()) { // convert to OpenGL coordinates int y = screenSize.height() - r.y() - r.height(); glXCopySubBufferMESA(display(), glxWindow, r.x(), y, r.width(), r.height()); } } else { // Copy Pixels (horribly slow on Mesa) glDrawBuffer(GL_FRONT); SceneOpenGL::copyPixels(lastDamage()); glDrawBuffer(GL_BACK); } setLastDamage(QRegion()); if (!supportsBufferAge()) { glXWaitGL(); XFlush(display()); } } void GlxBackend::screenGeometryChanged(const QSize &size) { doneCurrent(); XMoveResizeWindow(display(), window, 0, 0, size.width(), size.height()); overlayWindow()->setup(window); Xcb::sync(); makeCurrent(); glViewport(0, 0, size.width(), size.height()); // The back buffer contents are now undefined m_bufferAge = 0; } SceneOpenGL::TexturePrivate *GlxBackend::createBackendTexture(SceneOpenGL::Texture *texture) { return new GlxTexture(texture, this); } QRegion GlxBackend::prepareRenderingFrame() { QRegion repaint; if (gs_tripleBufferNeedsDetection) { // the composite timer floors the repaint frequency. This can pollute our triple buffering // detection because the glXSwapBuffers call for the new frame has to wait until the pending // one scanned out. // So we compensate for that by waiting an extra milisecond to give the driver the chance to // fllush the buffer queue usleep(1000); } present(); if (supportsBufferAge()) repaint = accumulatedDamageHistory(m_bufferAge); startRenderTimer(); glXWaitX(); return repaint; } void GlxBackend::endRenderingFrame(const QRegion &renderedRegion, const QRegion &damagedRegion) { if (damagedRegion.isEmpty()) { setLastDamage(QRegion()); // If the damaged region of a window is fully occluded, the only // rendering done, if any, will have been to repair a reused back // buffer, making it identical to the front buffer. // // In this case we won't post the back buffer. Instead we'll just // set the buffer age to 1, so the repaired regions won't be // rendered again in the next frame. if (!renderedRegion.isEmpty()) glFlush(); m_bufferAge = 1; return; } setLastDamage(renderedRegion); if (!blocksForRetrace()) { // This also sets lastDamage to empty which prevents the frame from // being posted again when prepareRenderingFrame() is called. present(); } else { // Make sure that the GPU begins processing the command stream // now and not the next time prepareRenderingFrame() is called. glFlush(); } if (overlayWindow()->window()) // show the window only after the first pass, overlayWindow()->show(); // since that pass may take long // Save the damaged region to history if (supportsBufferAge()) addToDamageHistory(damagedRegion); } bool GlxBackend::makeCurrent() { if (QOpenGLContext *context = QOpenGLContext::currentContext()) { // Workaround to tell Qt that no QOpenGLContext is current context->doneCurrent(); } const bool current = glXMakeCurrent(display(), glxWindow, ctx); return current; } void GlxBackend::doneCurrent() { glXMakeCurrent(display(), None, nullptr); } OverlayWindow* GlxBackend::overlayWindow() { return m_overlayWindow; } bool GlxBackend::usesOverlayWindow() const { return true; } /******************************************************** * GlxTexture *******************************************************/ GlxTexture::GlxTexture(SceneOpenGL::Texture *texture, GlxBackend *backend) : SceneOpenGL::TexturePrivate() , q(texture) , m_backend(backend) , m_glxpixmap(None) { } GlxTexture::~GlxTexture() { if (m_glxpixmap != None) { if (!options->isGlStrictBinding()) { glXReleaseTexImageEXT(display(), m_glxpixmap, GLX_FRONT_LEFT_EXT); } glXDestroyPixmap(display(), m_glxpixmap); m_glxpixmap = None; } } void GlxTexture::onDamage() { if (options->isGlStrictBinding() && m_glxpixmap) { glXReleaseTexImageEXT(display(), m_glxpixmap, GLX_FRONT_LEFT_EXT); glXBindTexImageEXT(display(), m_glxpixmap, GLX_FRONT_LEFT_EXT, NULL); } GLTexturePrivate::onDamage(); } bool GlxTexture::loadTexture(xcb_pixmap_t pixmap, const QSize &size, xcb_visualid_t visual) { if (pixmap == XCB_NONE || size.isEmpty() || visual == XCB_NONE) return false; const FBConfigInfo *info = m_backend->infoForVisual(visual); if (!info || info->fbconfig == nullptr) return false; if (info->texture_targets & GLX_TEXTURE_2D_BIT_EXT) { m_target = GL_TEXTURE_2D; m_scale.setWidth(1.0f / m_size.width()); m_scale.setHeight(1.0f / m_size.height()); } else { assert(info->texture_targets & GLX_TEXTURE_RECTANGLE_BIT_EXT); m_target = GL_TEXTURE_RECTANGLE; m_scale.setWidth(1.0f); m_scale.setHeight(1.0f); } const int attrs[] = { GLX_TEXTURE_FORMAT_EXT, info->bind_texture_format, GLX_MIPMAP_TEXTURE_EXT, false, GLX_TEXTURE_TARGET_EXT, m_target == GL_TEXTURE_2D ? GLX_TEXTURE_2D_EXT : GLX_TEXTURE_RECTANGLE_EXT, 0 }; m_glxpixmap = glXCreatePixmap(display(), info->fbconfig, pixmap, attrs); m_size = size; m_yInverted = info->y_inverted ? true : false; m_canUseMipmaps = false; glGenTextures(1, &m_texture); q->setDirty(); q->setFilter(GL_NEAREST); glBindTexture(m_target, m_texture); glXBindTexImageEXT(display(), m_glxpixmap, GLX_FRONT_LEFT_EXT, nullptr); updateMatrix(); return true; } bool GlxTexture::loadTexture(WindowPixmap *pixmap) { Toplevel *t = pixmap->toplevel(); return loadTexture(pixmap->pixmap(), t->size(), t->visual()); } OpenGLBackend *GlxTexture::backend() { return m_backend; } } // namespace diff --git a/glxbackend.h b/plugins/platforms/x11/standalone/glxbackend.h similarity index 100% rename from glxbackend.h rename to plugins/platforms/x11/standalone/glxbackend.h diff --git a/plugins/platforms/x11/standalone/x11_platform.cpp b/plugins/platforms/x11/standalone/x11_platform.cpp index ec41c956f..47827cc6a 100644 --- a/plugins/platforms/x11/standalone/x11_platform.cpp +++ b/plugins/platforms/x11/standalone/x11_platform.cpp @@ -1,50 +1,71 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2016 Martin Gräßlin 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 . *********************************************************************/ #include "x11_platform.h" +#include +#if HAVE_EPOXY_GLX +#include "glxbackend.h" +#endif +#include "eglonxbackend.h" #include "screens_xrandr.h" +#include "options.h" #include namespace KWin { X11StandalonePlatform::X11StandalonePlatform(QObject *parent) : Platform(parent) { } X11StandalonePlatform::~X11StandalonePlatform() = default; void X11StandalonePlatform::init() { if (!QX11Info::isPlatformX11()) { emit initFailed(); return; } setReady(true); emit screensQueried(); } Screens *X11StandalonePlatform::createScreens(QObject *parent) { return new XRandRScreens(parent); } +OpenGLBackend *X11StandalonePlatform::createOpenGLBackend() +{ + switch (options->glPlatformInterface()) { +#if HAVE_EPOXY_GLX + case GlxPlatformInterface: + return new GlxBackend(); +#endif + case EglPlatformInterface: + return new EglOnXBackend(); + default: + // no backend available + return nullptr; + } +} + } diff --git a/plugins/platforms/x11/standalone/x11_platform.h b/plugins/platforms/x11/standalone/x11_platform.h index a194e3933..aeae85265 100644 --- a/plugins/platforms/x11/standalone/x11_platform.h +++ b/plugins/platforms/x11/standalone/x11_platform.h @@ -1,47 +1,48 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2016 Martin Gräßlin 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 . *********************************************************************/ #ifndef KWIN_X11STANDALONE_PLATFORM_H #define KWIN_X11STANDALONE_PLATFORM_H #include "platform.h" #include #include namespace KWin { class KWIN_EXPORT X11StandalonePlatform : public Platform { Q_OBJECT Q_INTERFACES(KWin::Platform) Q_PLUGIN_METADATA(IID "org.kde.kwin.Platform" FILE "x11.json") public: X11StandalonePlatform(QObject *parent = nullptr); virtual ~X11StandalonePlatform(); void init() override; Screens *createScreens(QObject *parent = nullptr) override; + OpenGLBackend *createOpenGLBackend() override; }; } #endif diff --git a/scene_opengl.cpp b/scene_opengl.cpp index 95f668926..88c9d50f4 100644 --- a/scene_opengl.cpp +++ b/scene_opengl.cpp @@ -1,2586 +1,2563 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2006 Lubos Lunak Copyright (C) 2009, 2010, 2011 Martin Gräßlin Based on glcompmgr code by Felix Bellaby. Using code from Compiz and Beryl. Explicit command stream synchronization based on the sample implementation by James Jones , Copyright © 2011 NVIDIA Corporation 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 . *********************************************************************/ #include "scene_opengl.h" -#include "eglonxbackend.h" -#if HAVE_EPOXY_GLX -#include "glxbackend.h" -#endif #include "platform.h" #include "wayland_server.h" #include #include #include "utils.h" #include "client.h" #include "composite.h" #include "deleted.h" #include "effects.h" #include "lanczosfilter.h" #include "main.h" #include "overlaywindow.h" #include "screens.h" #include "decorations/decoratedclient.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include // HACK: workaround for libepoxy < 1.3 #ifndef GL_GUILTY_CONTEXT_RESET #define GL_GUILTY_CONTEXT_RESET 0x8253 #endif #ifndef GL_INNOCENT_CONTEXT_RESET #define GL_INNOCENT_CONTEXT_RESET 0x8254 #endif #ifndef GL_UNKNOWN_CONTEXT_RESET #define GL_UNKNOWN_CONTEXT_RESET 0x8255 #endif namespace KWin { extern int currentRefreshRate(); /** * SyncObject represents a fence used to synchronize operations in * the kwin command stream with operations in the X command stream. */ class SyncObject { public: enum State { Ready, TriggerSent, Waiting, Done, Resetting }; SyncObject(); ~SyncObject(); State state() const { return m_state; } void trigger(); void wait(); bool finish(); void reset(); void finishResetting(); private: State m_state; GLsync m_sync; xcb_sync_fence_t m_fence; xcb_get_input_focus_cookie_t m_reset_cookie; }; SyncObject::SyncObject() { m_state = Ready; xcb_connection_t * const c = connection(); m_fence = xcb_generate_id(c); xcb_sync_create_fence(c, rootWindow(), m_fence, false); xcb_flush(c); m_sync = glImportSyncEXT(GL_SYNC_X11_FENCE_EXT, m_fence, 0); } SyncObject::~SyncObject() { // If glDeleteSync is called before the xcb fence is signalled // the nvidia driver (the only one to implement GL_SYNC_X11_FENCE_EXT) // deadlocks waiting for the fence to be signalled. // To avoid this, make sure the fence is signalled before // deleting the sync. if (m_state == Resetting || m_state == Ready){ trigger(); // The flush is necessary! // The trigger command needs to be sent to the X server. xcb_flush(connection()); } xcb_sync_destroy_fence(connection(), m_fence); glDeleteSync(m_sync); if (m_state == Resetting) xcb_discard_reply(connection(), m_reset_cookie.sequence); } void SyncObject::trigger() { assert(m_state == Ready || m_state == Resetting); // Finish resetting the fence if necessary if (m_state == Resetting) finishResetting(); xcb_sync_trigger_fence(connection(), m_fence); m_state = TriggerSent; } void SyncObject::wait() { if (m_state != TriggerSent) return; glWaitSync(m_sync, 0, GL_TIMEOUT_IGNORED); m_state = Waiting; } bool SyncObject::finish() { if (m_state == Done) return true; // Note: It is possible that we never inserted a wait for the fence. // This can happen if we ended up not rendering the damaged // window because it is fully occluded. assert(m_state == TriggerSent || m_state == Waiting); // Check if the fence is signaled GLint value; glGetSynciv(m_sync, GL_SYNC_STATUS, 1, nullptr, &value); if (value != GL_SIGNALED) { qCDebug(KWIN_CORE) << "Waiting for X fence to finish"; // Wait for the fence to become signaled with a one second timeout const GLenum result = glClientWaitSync(m_sync, 0, 1000000000); switch (result) { case GL_TIMEOUT_EXPIRED: qCWarning(KWIN_CORE) << "Timeout while waiting for X fence"; return false; case GL_WAIT_FAILED: qCWarning(KWIN_CORE) << "glClientWaitSync() failed"; return false; } } m_state = Done; return true; } void SyncObject::reset() { assert(m_state == Done); xcb_connection_t * const c = connection(); // Send the reset request along with a sync request. // We use the cookie to ensure that the server has processed the reset // request before we trigger the fence and call glWaitSync(). // Otherwise there is a race condition between the reset finishing and // the glWaitSync() call. xcb_sync_reset_fence(c, m_fence); m_reset_cookie = xcb_get_input_focus(c); xcb_flush(c); m_state = Resetting; } void SyncObject::finishResetting() { assert(m_state == Resetting); free(xcb_get_input_focus_reply(connection(), m_reset_cookie, nullptr)); m_state = Ready; } // ----------------------------------------------------------------------- /** * SyncManager manages a set of fences used for explicit synchronization * with the X command stream. */ class SyncManager { public: enum { MaxFences = 4 }; SyncManager(); ~SyncManager(); SyncObject *nextFence(); bool updateFences(); private: std::array m_fences; int m_next; }; SyncManager::SyncManager() : m_next(0) { } SyncManager::~SyncManager() { } SyncObject *SyncManager::nextFence() { SyncObject *fence = &m_fences[m_next]; m_next = (m_next + 1) % MaxFences; return fence; } bool SyncManager::updateFences() { for (int i = 0; i < qMin(2, MaxFences - 1); i++) { const int index = (m_next + i) % MaxFences; SyncObject &fence = m_fences[index]; switch (fence.state()) { case SyncObject::Ready: break; case SyncObject::TriggerSent: case SyncObject::Waiting: if (!fence.finish()) return false; fence.reset(); break; // Should not happen in practice since we always reset the fence // after finishing it case SyncObject::Done: fence.reset(); break; case SyncObject::Resetting: fence.finishResetting(); break; } } return true; } // ----------------------------------------------------------------------- //**************************************** // SceneOpenGL //**************************************** OpenGLBackend::OpenGLBackend() : m_syncsToVBlank(false) , m_blocksForRetrace(false) , m_directRendering(false) , m_haveBufferAge(false) , m_failed(false) { } OpenGLBackend::~OpenGLBackend() { } void OpenGLBackend::setFailed(const QString &reason) { qCWarning(KWIN_CORE) << "Creating the OpenGL rendering failed: " << reason; m_failed = true; } void OpenGLBackend::idle() { if (hasPendingFlush()) { effects->makeOpenGLContextCurrent(); present(); } } void OpenGLBackend::addToDamageHistory(const QRegion ®ion) { if (m_damageHistory.count() > 10) m_damageHistory.removeLast(); m_damageHistory.prepend(region); } QRegion OpenGLBackend::accumulatedDamageHistory(int bufferAge) const { QRegion region; // Note: An age of zero means the buffer contents are undefined if (bufferAge > 0 && bufferAge <= m_damageHistory.count()) { for (int i = 0; i < bufferAge - 1; i++) region |= m_damageHistory[i]; } else { const QSize &s = screens()->size(); region = QRegion(0, 0, s.width(), s.height()); } return region; } OverlayWindow* OpenGLBackend::overlayWindow() { return NULL; } QRegion OpenGLBackend::prepareRenderingForScreen(int screenId) { // fallback to repaint complete screen return screens()->geometry(screenId); } void OpenGLBackend::endRenderingFrameForScreen(int screenId, const QRegion &damage, const QRegion &damagedRegion) { Q_UNUSED(screenId) Q_UNUSED(damage) Q_UNUSED(damagedRegion) } bool OpenGLBackend::perScreenRendering() const { return false; } /************************************************ * SceneOpenGL ***********************************************/ SceneOpenGL::SceneOpenGL(OpenGLBackend *backend, QObject *parent) : Scene(parent) , init_ok(true) , m_backend(backend) , m_syncManager(nullptr) , m_currentFence(nullptr) { if (m_backend->isFailed()) { init_ok = false; return; } if (!viewportLimitsMatched(screens()->size())) return; // perform Scene specific checks GLPlatform *glPlatform = GLPlatform::instance(); if (!glPlatform->isGLES() && !hasGLExtension(QByteArrayLiteral("GL_ARB_texture_non_power_of_two")) && !hasGLExtension(QByteArrayLiteral("GL_ARB_texture_rectangle"))) { qCCritical(KWIN_CORE) << "GL_ARB_texture_non_power_of_two and GL_ARB_texture_rectangle missing"; init_ok = false; return; // error } if (glPlatform->isMesaDriver() && glPlatform->mesaVersion() < kVersionNumber(8, 0)) { qCCritical(KWIN_CORE) << "KWin requires at least Mesa 8.0 for OpenGL compositing."; init_ok = false; return; } if (!glPlatform->isGLES() && !m_backend->isSurfaceLessContext()) { glDrawBuffer(GL_BACK); } m_debug = qstrcmp(qgetenv("KWIN_GL_DEBUG"), "1") == 0; initDebugOutput(); // set strict binding if (options->isGlStrictBindingFollowsDriver()) { options->setGlStrictBinding(!glPlatform->supports(LooseBinding)); } bool haveSyncObjects = glPlatform->isGLES() ? hasGLVersion(3, 0) : hasGLVersion(3, 2) || hasGLExtension("GL_ARB_sync"); if (hasGLExtension("GL_EXT_x11_sync_object") && haveSyncObjects) { const QByteArray useExplicitSync = qgetenv("KWIN_EXPLICIT_SYNC"); if (useExplicitSync != "0") { qCDebug(KWIN_CORE) << "Initializing fences for synchronization with the X command stream"; m_syncManager = new SyncManager; } else { qCDebug(KWIN_CORE) << "Explicit synchronization with the X command stream disabled by environment variable"; } } } static SceneOpenGL *gs_debuggedScene = nullptr; SceneOpenGL::~SceneOpenGL() { // do cleanup after initBuffer() gs_debuggedScene = nullptr; SceneOpenGL::EffectFrame::cleanup(); if (init_ok) { delete m_syncManager; // backend might be still needed for a different scene delete m_backend; } } static void scheduleVboReInit() { if (!gs_debuggedScene) return; static QPointer timer; if (!timer) { delete timer; timer = new QTimer(gs_debuggedScene); timer->setSingleShot(true); QObject::connect(timer.data(), &QTimer::timeout, gs_debuggedScene, []() { GLVertexBuffer::cleanup(); GLVertexBuffer::initStatic(); }); } timer->start(250); } void SceneOpenGL::initDebugOutput() { const bool have_KHR_debug = hasGLExtension(QByteArrayLiteral("GL_KHR_debug")); const bool have_ARB_debug = hasGLExtension(QByteArrayLiteral("GL_ARB_debug_output")); if (!have_KHR_debug && !have_ARB_debug) return; if (!have_ARB_debug) { // if we don't have ARB debug, but only KHR debug we need to verify whether the context is a debug context // it should work without as well, but empirical tests show: no it doesn't if (GLPlatform::instance()->isGLES()) { if (!hasGLVersion(3, 2)) { // empirical data shows extension doesn't work return; } } else if (!hasGLVersion(3, 0)) { return; } // can only be queried with either OpenGL >= 3.0 or OpenGL ES of at least 3.1 GLint value = 0; glGetIntegerv(GL_CONTEXT_FLAGS, &value); if (!(value & GL_CONTEXT_FLAG_DEBUG_BIT)) { return; } } gs_debuggedScene = this; // Set the callback function auto callback = [](GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const GLvoid *userParam) { Q_UNUSED(source) Q_UNUSED(severity) Q_UNUSED(userParam) while (message[length] == '\n' || message[length] == '\r') --length; switch (type) { case GL_DEBUG_TYPE_ERROR: case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: qCWarning(KWIN_CORE, "%#x: %.*s", id, length, message); break; case GL_DEBUG_TYPE_OTHER: // at least the nvidia driver seems prone to end up with invalid VBOs after // transferring them between system heap and VRAM // so we re-init them whenever this happens (typically when switching VT, resuming // from STR and XRandR events - #344326 if (strstr(message, "Buffer detailed info:") && strstr(message, "has been updated")) scheduleVboReInit(); // fall through! for general message printing case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: case GL_DEBUG_TYPE_PORTABILITY: case GL_DEBUG_TYPE_PERFORMANCE: default: qCDebug(KWIN_CORE, "%#x: %.*s", id, length, message); break; } }; glDebugMessageCallback(callback, nullptr); // This state exists only in GL_KHR_debug if (have_KHR_debug) glEnable(GL_DEBUG_OUTPUT); #ifndef NDEBUG // Enable all debug messages glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, nullptr, GL_TRUE); #else // Enable error messages glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_ERROR, GL_DONT_CARE, 0, nullptr, GL_TRUE); glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR, GL_DONT_CARE, 0, nullptr, GL_TRUE); #endif // Insert a test message const QByteArray message = QByteArrayLiteral("OpenGL debug output initialized"); glDebugMessageInsert(GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_OTHER, 0, GL_DEBUG_SEVERITY_LOW, message.length(), message.constData()); } SceneOpenGL *SceneOpenGL::createScene(QObject *parent) { - OpenGLBackend *backend = NULL; - OpenGLPlatformInterface platformInterface = options->glPlatformInterface(); - - switch (platformInterface) { - case GlxPlatformInterface: -#if HAVE_EPOXY_GLX - backend = new GlxBackend(); -#endif - break; - case EglPlatformInterface: - if (kwinApp()->shouldUseWaylandForCompositing()) { - backend = kwinApp()->platform()->createOpenGLBackend(); - } else { - backend = new EglOnXBackend(); - } - break; - default: - // no backend available - return NULL; - } + OpenGLBackend *backend = kwinApp()->platform()->createOpenGLBackend(); if (!backend) { return nullptr; } if (!backend->isFailed()) { backend->init(); } if (backend->isFailed()) { delete backend; return NULL; } SceneOpenGL *scene = NULL; // first let's try an OpenGL 2 scene if (SceneOpenGL2::supported(backend)) { scene = new SceneOpenGL2(backend, parent); if (scene->initFailed()) { delete scene; scene = NULL; } else { return scene; } } if (!scene) { if (GLPlatform::instance()->recommendedCompositor() == XRenderCompositing) { qCCritical(KWIN_CORE) << "OpenGL driver recommends XRender based compositing. Falling back to XRender."; qCCritical(KWIN_CORE) << "To overwrite the detection use the environment variable KWIN_COMPOSE"; qCCritical(KWIN_CORE) << "For more information see http://community.kde.org/KWin/Environment_Variables#KWIN_COMPOSE"; QTimer::singleShot(0, Compositor::self(), SLOT(fallbackToXRenderCompositing())); } delete backend; } return scene; } OverlayWindow *SceneOpenGL::overlayWindow() { return m_backend->overlayWindow(); } bool SceneOpenGL::syncsToVBlank() const { return m_backend->syncsToVBlank(); } bool SceneOpenGL::blocksForRetrace() const { return m_backend->blocksForRetrace(); } void SceneOpenGL::idle() { m_backend->idle(); Scene::idle(); } bool SceneOpenGL::initFailed() const { return !init_ok; } void SceneOpenGL::copyPixels(const QRegion ®ion) { const int height = screens()->size().height(); foreach (const QRect &r, region.rects()) { const int x0 = r.x(); const int y0 = height - r.y() - r.height(); const int x1 = r.x() + r.width(); const int y1 = height - r.y(); glBlitFramebuffer(x0, y0, x1, y1, x0, y0, x1, y1, GL_COLOR_BUFFER_BIT, GL_NEAREST); } } void SceneOpenGL::handleGraphicsReset(GLenum status) { switch (status) { case GL_GUILTY_CONTEXT_RESET: qCDebug(KWIN_CORE) << "A graphics reset attributable to the current GL context occurred."; break; case GL_INNOCENT_CONTEXT_RESET: qCDebug(KWIN_CORE) << "A graphics reset not attributable to the current GL context occurred."; break; case GL_UNKNOWN_CONTEXT_RESET: qCDebug(KWIN_CORE) << "A graphics reset of an unknown cause occurred."; break; default: break; } QElapsedTimer timer; timer.start(); // Wait until the reset is completed or max 10 seconds while (timer.elapsed() < 10000 && glGetGraphicsResetStatus() != GL_NO_ERROR) usleep(50); qCDebug(KWIN_CORE) << "Attempting to reset compositing."; QMetaObject::invokeMethod(this, "resetCompositing", Qt::QueuedConnection); KNotification::event(QStringLiteral("graphicsreset"), i18n("Desktop effects were restarted due to a graphics reset")); } void SceneOpenGL::triggerFence() { if (m_syncManager) { m_currentFence = m_syncManager->nextFence(); m_currentFence->trigger(); } } void SceneOpenGL::insertWait() { if (m_currentFence && m_currentFence->state() != SyncObject::Waiting) { m_currentFence->wait(); } } qint64 SceneOpenGL::paint(QRegion damage, ToplevelList toplevels) { // actually paint the frame, flushed with the NEXT frame createStackingOrder(toplevels); // After this call, updateRegion will contain the damaged region in the // back buffer. This is the region that needs to be posted to repair // the front buffer. It doesn't include the additional damage returned // by prepareRenderingFrame(). validRegion is the region that has been // repainted, and may be larger than updateRegion. QRegion updateRegion, validRegion; if (m_backend->perScreenRendering()) { // trigger start render timer m_backend->prepareRenderingFrame(); for (int i = 0; i < screens()->count(); ++i) { const QRect &geo = screens()->geometry(i); QRegion update; QRegion valid; // prepare rendering makes context current on the output QRegion repaint = m_backend->prepareRenderingForScreen(i); const GLenum status = glGetGraphicsResetStatus(); if (status != GL_NO_ERROR) { handleGraphicsReset(status); return 0; } int mask = 0; updateProjectionMatrix(); paintScreen(&mask, damage.intersected(geo), repaint, &update, &valid, projectionMatrix()); // call generic implementation GLVertexBuffer::streamingBuffer()->endOfFrame(); m_backend->endRenderingFrameForScreen(i, valid, update); GLVertexBuffer::streamingBuffer()->framePosted(); } } else { m_backend->makeCurrent(); QRegion repaint = m_backend->prepareRenderingFrame(); const GLenum status = glGetGraphicsResetStatus(); if (status != GL_NO_ERROR) { handleGraphicsReset(status); return 0; } int mask = 0; updateProjectionMatrix(); paintScreen(&mask, damage, repaint, &updateRegion, &validRegion, projectionMatrix()); // call generic implementation if (!GLPlatform::instance()->isGLES()) { const QSize &screenSize = screens()->size(); const QRegion displayRegion(0, 0, screenSize.width(), screenSize.height()); // copy dirty parts from front to backbuffer if (!m_backend->supportsBufferAge() && options->glPreferBufferSwap() == Options::CopyFrontBuffer && validRegion != displayRegion) { glReadBuffer(GL_FRONT); copyPixels(displayRegion - validRegion); glReadBuffer(GL_BACK); validRegion = displayRegion; } } GLVertexBuffer::streamingBuffer()->endOfFrame(); m_backend->endRenderingFrame(validRegion, updateRegion); GLVertexBuffer::streamingBuffer()->framePosted(); } if (m_currentFence) { if (!m_syncManager->updateFences()) { qCDebug(KWIN_CORE) << "Aborting explicit synchronization with the X command stream."; qCDebug(KWIN_CORE) << "Future frames will be rendered unsynchronized."; delete m_syncManager; m_syncManager = nullptr; } m_currentFence = nullptr; } // do cleanup clearStackingOrder(); return m_backend->renderTime(); } QMatrix4x4 SceneOpenGL::transformation(int mask, const ScreenPaintData &data) const { QMatrix4x4 matrix; if (!(mask & PAINT_SCREEN_TRANSFORMED)) return matrix; matrix.translate(data.translation()); data.scale().applyTo(&matrix); if (data.rotationAngle() == 0.0) return matrix; // Apply the rotation // cannot use data.rotation->applyTo(&matrix) as QGraphicsRotation uses projectedRotate to map back to 2D matrix.translate(data.rotationOrigin()); const QVector3D axis = data.rotationAxis(); matrix.rotate(data.rotationAngle(), axis.x(), axis.y(), axis.z()); matrix.translate(-data.rotationOrigin()); return matrix; } void SceneOpenGL::paintBackground(QRegion region) { PaintClipper pc(region); if (!PaintClipper::clip()) { glClearColor(0, 0, 0, 1); glClear(GL_COLOR_BUFFER_BIT); return; } if (pc.clip() && pc.paintArea().isEmpty()) return; // no background to paint QVector verts; for (PaintClipper::Iterator iterator; !iterator.isDone(); iterator.next()) { QRect r = iterator.boundingRect(); verts << r.x() + r.width() << r.y(); verts << r.x() << r.y(); verts << r.x() << r.y() + r.height(); verts << r.x() << r.y() + r.height(); verts << r.x() + r.width() << r.y() + r.height(); verts << r.x() + r.width() << r.y(); } doPaintBackground(verts); } void SceneOpenGL::extendPaintRegion(QRegion ®ion, bool opaqueFullscreen) { if (m_backend->supportsBufferAge()) return; const QSize &screenSize = screens()->size(); if (options->glPreferBufferSwap() == Options::ExtendDamage) { // only Extend "large" repaints const QRegion displayRegion(0, 0, screenSize.width(), screenSize.height()); uint damagedPixels = 0; const uint fullRepaintLimit = (opaqueFullscreen?0.49f:0.748f)*screenSize.width()*screenSize.height(); // 16:9 is 75% of 4:3 and 2.55:1 is 49.01% of 5:4 // (5:4 is the most square format and 2.55:1 is Cinemascope55 - the widest ever shot // movie aspect - two times ;-) It's a Fox format, though, so maybe we want to restrict // to 2.20:1 - Panavision - which has actually been used for interesting movies ...) // would be 57% of 5/4 foreach (const QRect &r, region.rects()) { // damagedPixels += r.width() * r.height(); // combined window damage test damagedPixels = r.width() * r.height(); // experimental single window damage testing if (damagedPixels > fullRepaintLimit) { region = displayRegion; return; } } } else if (options->glPreferBufferSwap() == Options::PaintFullScreen) { // forced full rePaint region = QRegion(0, 0, screenSize.width(), screenSize.height()); } } SceneOpenGL::Texture *SceneOpenGL::createTexture() { return new Texture(m_backend); } bool SceneOpenGL::viewportLimitsMatched(const QSize &size) const { GLint limit[2]; glGetIntegerv(GL_MAX_VIEWPORT_DIMS, limit); if (limit[0] < size.width() || limit[1] < size.height()) { QMetaObject::invokeMethod(Compositor::self(), "suspend", Qt::QueuedConnection, Q_ARG(Compositor::SuspendReason, Compositor::AllReasonSuspend)); const QString message = i18n("

OpenGL desktop effects not possible

" "Your system cannot perform OpenGL Desktop Effects at the " "current resolution

" "You can try to select the XRender backend, but it " "might be very slow for this resolution as well.
" "Alternatively, lower the combined resolution of all screens " "to %1x%2 ", limit[0], limit[1]); const QString details = i18n("The demanded resolution exceeds the GL_MAX_VIEWPORT_DIMS " "limitation of your GPU and is therefore not compatible " "with the OpenGL compositor.
" "XRender does not know such limitation, but the performance " "will usually be impacted by the hardware limitations that " "restrict the OpenGL viewport size."); const int oldTimeout = QDBusConnection::sessionBus().interface()->timeout(); QDBusConnection::sessionBus().interface()->setTimeout(500); if (QDBusConnection::sessionBus().interface()->isServiceRegistered(QStringLiteral("org.kde.kwinCompositingDialog")).value()) { QDBusInterface dialog( QStringLiteral("org.kde.kwinCompositingDialog"), QStringLiteral("/CompositorSettings"), QStringLiteral("org.kde.kwinCompositingDialog") ); dialog.asyncCall(QStringLiteral("warn"), message, details, QString()); } else { const QString args = QLatin1String("warn ") + QString::fromUtf8(message.toLocal8Bit().toBase64()) + QLatin1String(" details ") + QString::fromUtf8(details.toLocal8Bit().toBase64()); KProcess::startDetached(QStringLiteral("kcmshell5"), QStringList() << QStringLiteral("kwincompositing") << QStringLiteral("--args") << args); } QDBusConnection::sessionBus().interface()->setTimeout(oldTimeout); return false; } glGetIntegerv(GL_MAX_TEXTURE_SIZE, limit); if (limit[0] < size.width() || limit[0] < size.height()) { KConfig cfg(QStringLiteral("kwin_dialogsrc")); if (!KConfigGroup(&cfg, "Notification Messages").readEntry("max_tex_warning", true)) return true; const QString message = i18n("

OpenGL desktop effects might be unusable

" "OpenGL Desktop Effects at the current resolution are supported " "but might be exceptionally slow.
" "Also large windows will turn entirely black.

" "Consider to suspend compositing, switch to the XRender backend " "or lower the resolution to %1x%1." , limit[0]); const QString details = i18n("The demanded resolution exceeds the GL_MAX_TEXTURE_SIZE " "limitation of your GPU, thus windows of that size cannot be " "assigned to textures and will be entirely black.
" "Also this limit will often be a performance level barrier despite " "below GL_MAX_VIEWPORT_DIMS, because the driver might fall back to " "software rendering in this case."); const int oldTimeout = QDBusConnection::sessionBus().interface()->timeout(); QDBusConnection::sessionBus().interface()->setTimeout(500); if (QDBusConnection::sessionBus().interface()->isServiceRegistered(QStringLiteral("org.kde.kwinCompositingDialog")).value()) { QDBusInterface dialog( QStringLiteral("org.kde.kwinCompositingDialog"), QStringLiteral("/CompositorSettings"), QStringLiteral("org.kde.kwinCompositingDialog") ); dialog.asyncCall(QStringLiteral("warn"), message, details, QStringLiteral("kwin_dialogsrc:max_tex_warning")); } else { const QString args = QLatin1String("warn ") + QString::fromUtf8(message.toLocal8Bit().toBase64()) + QLatin1String(" details ") + QString::fromUtf8(details.toLocal8Bit().toBase64()) + QLatin1String(" dontagain kwin_dialogsrc:max_tex_warning"); KProcess::startDetached(QStringLiteral("kcmshell5"), QStringList() << QStringLiteral("kwincompositing") << QStringLiteral("--args") << args); } QDBusConnection::sessionBus().interface()->setTimeout(oldTimeout); } return true; } void SceneOpenGL::screenGeometryChanged(const QSize &size) { if (!viewportLimitsMatched(size)) return; Scene::screenGeometryChanged(size); glViewport(0,0, size.width(), size.height()); m_backend->screenGeometryChanged(size); GLRenderTarget::setVirtualScreenSize(size); GLVertexBuffer::setVirtualScreenSize(size); } void SceneOpenGL::paintDesktop(int desktop, int mask, const QRegion ®ion, ScreenPaintData &data) { const QRect r = region.boundingRect(); glEnable(GL_SCISSOR_TEST); glScissor(r.x(), screens()->size().height() - r.y() - r.height(), r.width(), r.height()); KWin::Scene::paintDesktop(desktop, mask, region, data); glDisable(GL_SCISSOR_TEST); } bool SceneOpenGL::makeOpenGLContextCurrent() { return m_backend->makeCurrent(); } void SceneOpenGL::doneOpenGLContextCurrent() { m_backend->doneCurrent(); } Scene::EffectFrame *SceneOpenGL::createEffectFrame(EffectFrameImpl *frame) { return new SceneOpenGL::EffectFrame(frame, this); } Shadow *SceneOpenGL::createShadow(Toplevel *toplevel) { return new SceneOpenGLShadow(toplevel); } Decoration::Renderer *SceneOpenGL::createDecorationRenderer(Decoration::DecoratedClientImpl *impl) { return new SceneOpenGLDecorationRenderer(impl); } //**************************************** // SceneOpenGL2 //**************************************** bool SceneOpenGL2::supported(OpenGLBackend *backend) { const QByteArray forceEnv = qgetenv("KWIN_COMPOSE"); if (!forceEnv.isEmpty()) { if (qstrcmp(forceEnv, "O2") == 0 || qstrcmp(forceEnv, "O2ES") == 0) { qCDebug(KWIN_CORE) << "OpenGL 2 compositing enforced by environment variable"; return true; } else { // OpenGL 2 disabled by environment variable return false; } } if (!backend->isDirectRendering()) { return false; } if (GLPlatform::instance()->recommendedCompositor() < OpenGL2Compositing) { qCDebug(KWIN_CORE) << "Driver does not recommend OpenGL 2 compositing"; return false; } return true; } SceneOpenGL2::SceneOpenGL2(OpenGLBackend *backend, QObject *parent) : SceneOpenGL(backend, parent) , m_lanczosFilter(NULL) , m_colorCorrection() { if (!init_ok) { // base ctor already failed return; } // We only support the OpenGL 2+ shader API, not GL_ARB_shader_objects if (!hasGLVersion(2, 0)) { qCDebug(KWIN_CORE) << "OpenGL 2.0 is not supported"; init_ok = false; return; } // Initialize color correction before the shaders slotColorCorrectedChanged(false); connect(options, SIGNAL(colorCorrectedChanged()), this, SLOT(slotColorCorrectedChanged()), Qt::QueuedConnection); const QSize &s = screens()->size(); GLRenderTarget::setVirtualScreenSize(s); GLVertexBuffer::setVirtualScreenSize(s); // push one shader on the stack so that one is always bound ShaderManager::instance()->pushShader(ShaderTrait::MapTexture); if (checkGLError("Init")) { qCCritical(KWIN_CORE) << "OpenGL 2 compositing setup failed"; init_ok = false; return; // error } // It is not legal to not have a vertex array object bound in a core context if (!GLPlatform::instance()->isGLES() && hasGLExtension(QByteArrayLiteral("GL_ARB_vertex_array_object"))) { glGenVertexArrays(1, &vao); glBindVertexArray(vao); } if (!ShaderManager::instance()->selfTest()) { qCCritical(KWIN_CORE) << "ShaderManager self test failed"; init_ok = false; return; } qCDebug(KWIN_CORE) << "OpenGL 2 compositing successfully initialized"; init_ok = true; } SceneOpenGL2::~SceneOpenGL2() { } QMatrix4x4 SceneOpenGL2::createProjectionMatrix() const { // Create a perspective projection with a 60° field-of-view, // and an aspect ratio of 1.0. const float fovY = 60.0f; const float aspect = 1.0f; const float zNear = 0.1f; const float zFar = 100.0f; const float yMax = zNear * std::tan(fovY * M_PI / 360.0f); const float yMin = -yMax; const float xMin = yMin * aspect; const float xMax = yMax * aspect; QMatrix4x4 projection; projection.frustum(xMin, xMax, yMin, yMax, zNear, zFar); // Create a second matrix that transforms screen coordinates // to world coordinates. const float scaleFactor = 1.1 * std::tan(fovY * M_PI / 360.0f) / yMax; const QSize size = screens()->size(); QMatrix4x4 matrix; matrix.translate(xMin * scaleFactor, yMax * scaleFactor, -1.1); matrix.scale( (xMax - xMin) * scaleFactor / size.width(), -(yMax - yMin) * scaleFactor / size.height(), 0.001); // Combine the matrices return projection * matrix; } void SceneOpenGL2::updateProjectionMatrix() { m_projectionMatrix = createProjectionMatrix(); } void SceneOpenGL2::paintSimpleScreen(int mask, QRegion region) { m_screenProjectionMatrix = m_projectionMatrix; Scene::paintSimpleScreen(mask, region); } void SceneOpenGL2::paintGenericScreen(int mask, ScreenPaintData data) { const QMatrix4x4 screenMatrix = transformation(mask, data); m_screenProjectionMatrix = m_projectionMatrix * screenMatrix; Scene::paintGenericScreen(mask, data); } void SceneOpenGL2::doPaintBackground(const QVector< float >& vertices) { GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer(); vbo->reset(); vbo->setUseColor(true); vbo->setData(vertices.count() / 2, 2, vertices.data(), NULL); ShaderBinder binder(ShaderTrait::UniformColor); binder.shader()->setUniform(GLShader::ModelViewProjectionMatrix, m_projectionMatrix); vbo->render(GL_TRIANGLES); } Scene::Window *SceneOpenGL2::createWindow(Toplevel *t) { SceneOpenGL2Window *w = new SceneOpenGL2Window(t); w->setScene(this); return w; } void SceneOpenGL2::finalDrawWindow(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data) { if (waylandServer() && waylandServer()->isScreenLocked() && !w->window()->isLockScreen() && !w->window()->isInputMethod()) { return; } if (!m_colorCorrection.isNull() && m_colorCorrection->isEnabled()) { // Split the painting for separate screens const int numScreens = screens()->count(); for (int screen = 0; screen < numScreens; ++ screen) { QRegion regionForScreen(region); if (numScreens > 1) regionForScreen = region.intersected(screens()->geometry(screen)); data.setScreen(screen); performPaintWindow(w, mask, regionForScreen, data); } } else { performPaintWindow(w, mask, region, data); } } void SceneOpenGL2::performPaintWindow(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data) { if (mask & PAINT_WINDOW_LANCZOS) { if (!m_lanczosFilter) { m_lanczosFilter = new LanczosFilter(this); // recreate the lanczos filter when the screen gets resized connect(screens(), SIGNAL(changed()), SLOT(resetLanczosFilter())); } m_lanczosFilter->performPaint(w, mask, region, data); } else w->sceneWindow()->performPaint(mask, region, data); } void SceneOpenGL2::resetLanczosFilter() { // TODO: Qt5 - replace by a lambda slot delete m_lanczosFilter; m_lanczosFilter = NULL; } ColorCorrection *SceneOpenGL2::colorCorrection() { return m_colorCorrection.data(); } void SceneOpenGL2::slotColorCorrectedChanged(bool recreateShaders) { qCDebug(KWIN_CORE) << "Color correction:" << options->isColorCorrected(); if (options->isColorCorrected() && m_colorCorrection.isNull()) { m_colorCorrection.reset(new ColorCorrection(this)); if (!m_colorCorrection->setEnabled(true)) { m_colorCorrection.reset(); return; } connect(m_colorCorrection.data(), SIGNAL(changed()), Compositor::self(), SLOT(addRepaintFull())); connect(m_colorCorrection.data(), SIGNAL(errorOccured()), options, SLOT(setColorCorrected()), Qt::QueuedConnection); if (recreateShaders) { // Reload all shaders ShaderManager::cleanup(); ShaderManager::instance(); } } else { m_colorCorrection.reset(); } Compositor::self()->addRepaintFull(); } //**************************************** // SceneOpenGL::Texture //**************************************** SceneOpenGL::Texture::Texture(OpenGLBackend *backend) : GLTexture(*backend->createBackendTexture(this)) { } SceneOpenGL::Texture::~Texture() { } SceneOpenGL::Texture& SceneOpenGL::Texture::operator = (const SceneOpenGL::Texture& tex) { d_ptr = tex.d_ptr; return *this; } void SceneOpenGL::Texture::discard() { d_ptr = d_func()->backend()->createBackendTexture(this); } bool SceneOpenGL::Texture::load(WindowPixmap *pixmap) { if (!pixmap->isValid()) { return false; } // decrease the reference counter for the old texture d_ptr = d_func()->backend()->createBackendTexture(this); //new TexturePrivate(); Q_D(Texture); return d->loadTexture(pixmap); } void SceneOpenGL::Texture::updateFromPixmap(WindowPixmap *pixmap) { Q_D(Texture); d->updateTexture(pixmap); } //**************************************** // SceneOpenGL::Texture //**************************************** SceneOpenGL::TexturePrivate::TexturePrivate() { } SceneOpenGL::TexturePrivate::~TexturePrivate() { } void SceneOpenGL::TexturePrivate::updateTexture(WindowPixmap *pixmap) { Q_UNUSED(pixmap) } //**************************************** // SceneOpenGL::Window //**************************************** SceneOpenGL::Window::Window(Toplevel* c) : Scene::Window(c) , m_scene(NULL) { } SceneOpenGL::Window::~Window() { } static SceneOpenGL::Texture *s_frameTexture = NULL; // Bind the window pixmap to an OpenGL texture. bool SceneOpenGL::Window::bindTexture() { s_frameTexture = NULL; OpenGLWindowPixmap *pixmap = windowPixmap(); if (!pixmap) { return false; } s_frameTexture = pixmap->texture(); if (pixmap->isDiscarded()) { return !pixmap->texture()->isNull(); } if (!window()->damage().isEmpty()) m_scene->insertWait(); return pixmap->bind(); } QMatrix4x4 SceneOpenGL::Window::transformation(int mask, const WindowPaintData &data) const { QMatrix4x4 matrix; matrix.translate(x(), y()); if (!(mask & PAINT_WINDOW_TRANSFORMED)) return matrix; matrix.translate(data.translation()); data.scale().applyTo(&matrix); if (data.rotationAngle() == 0.0) return matrix; // Apply the rotation // cannot use data.rotation.applyTo(&matrix) as QGraphicsRotation uses projectedRotate to map back to 2D matrix.translate(data.rotationOrigin()); const QVector3D axis = data.rotationAxis(); matrix.rotate(data.rotationAngle(), axis.x(), axis.y(), axis.z()); matrix.translate(-data.rotationOrigin()); return matrix; } bool SceneOpenGL::Window::beginRenderWindow(int mask, const QRegion ®ion, WindowPaintData &data) { if (region.isEmpty()) return false; m_hardwareClipping = region != infiniteRegion() && (mask & PAINT_WINDOW_TRANSFORMED) && !(mask & PAINT_SCREEN_TRANSFORMED); if (region != infiniteRegion() && !m_hardwareClipping) { WindowQuadList quads; quads.reserve(data.quads.count()); const QRegion filterRegion = region.translated(-x(), -y()); // split all quads in bounding rect with the actual rects in the region foreach (const WindowQuad &quad, data.quads) { foreach (const QRect &r, filterRegion.rects()) { const QRectF rf(r); const QRectF quadRect(QPointF(quad.left(), quad.top()), QPointF(quad.right(), quad.bottom())); const QRectF &intersected = rf.intersected(quadRect); if (intersected.isValid()) { if (quadRect == intersected) { // case 1: completely contains, include and do not check other rects quads << quad; break; } // case 2: intersection quads << quad.makeSubQuad(intersected.left(), intersected.top(), intersected.right(), intersected.bottom()); } } } data.quads = quads; } if (data.quads.isEmpty()) return false; if (!bindTexture() || !s_frameTexture) { return false; } if (m_hardwareClipping) { glEnable(GL_SCISSOR_TEST); } // Update the texture filter if (options->glSmoothScale() != 0 && (mask & (PAINT_WINDOW_TRANSFORMED | PAINT_SCREEN_TRANSFORMED))) filter = ImageFilterGood; else filter = ImageFilterFast; s_frameTexture->setFilter(filter == ImageFilterGood ? GL_LINEAR : GL_NEAREST); const GLVertexAttrib attribs[] = { { VA_Position, 2, GL_FLOAT, offsetof(GLVertex2D, position) }, { VA_TexCoord, 2, GL_FLOAT, offsetof(GLVertex2D, texcoord) }, }; GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer(); vbo->reset(); vbo->setAttribLayout(attribs, 2, sizeof(GLVertex2D)); return true; } void SceneOpenGL::Window::endRenderWindow() { if (m_hardwareClipping) { glDisable(GL_SCISSOR_TEST); } } GLTexture *SceneOpenGL::Window::getDecorationTexture() const { if (AbstractClient *client = dynamic_cast(toplevel)) { if (client->noBorder()) { return nullptr; } if (!client->isDecorated()) { return nullptr; } if (SceneOpenGLDecorationRenderer *renderer = static_cast(client->decoratedClient()->renderer())) { renderer->render(); return renderer->texture(); } } else if (toplevel->isDeleted()) { Deleted *deleted = static_cast(toplevel); if (!deleted->wasClient() || deleted->noBorder()) { return nullptr; } if (const SceneOpenGLDecorationRenderer *renderer = static_cast(deleted->decorationRenderer())) { return renderer->texture(); } } return nullptr; } WindowPixmap* SceneOpenGL::Window::createWindowPixmap() { return new OpenGLWindowPixmap(this, m_scene); } //*************************************** // SceneOpenGL2Window //*************************************** SceneOpenGL2Window::SceneOpenGL2Window(Toplevel *c) : SceneOpenGL::Window(c) , m_blendingEnabled(false) { } SceneOpenGL2Window::~SceneOpenGL2Window() { } QVector4D SceneOpenGL2Window::modulate(float opacity, float brightness) const { const float a = opacity; const float rgb = opacity * brightness; return QVector4D(rgb, rgb, rgb, a); } void SceneOpenGL2Window::setBlendEnabled(bool enabled) { if (enabled && !m_blendingEnabled) glEnable(GL_BLEND); else if (!enabled && m_blendingEnabled) glDisable(GL_BLEND); m_blendingEnabled = enabled; } void SceneOpenGL2Window::setupLeafNodes(LeafNode *nodes, const WindowQuadList *quads, const WindowPaintData &data) { if (!quads[ShadowLeaf].isEmpty()) { nodes[ShadowLeaf].texture = static_cast(m_shadow)->shadowTexture(); nodes[ShadowLeaf].opacity = data.opacity(); nodes[ShadowLeaf].hasAlpha = true; nodes[ShadowLeaf].coordinateType = NormalizedCoordinates; } if (!quads[DecorationLeaf].isEmpty()) { nodes[DecorationLeaf].texture = getDecorationTexture(); nodes[DecorationLeaf].opacity = data.opacity(); nodes[DecorationLeaf].hasAlpha = true; nodes[DecorationLeaf].coordinateType = UnnormalizedCoordinates; } nodes[ContentLeaf].texture = s_frameTexture; nodes[ContentLeaf].hasAlpha = !isOpaque(); // TODO: ARGB crsoofading is atm. a hack, playing on opacities for two dumb SrcOver operations // Should be a shader if (data.crossFadeProgress() != 1.0 && (data.opacity() < 0.95 || toplevel->hasAlpha())) { const float opacity = 1.0 - data.crossFadeProgress(); nodes[ContentLeaf].opacity = data.opacity() * (1 - pow(opacity, 1.0f + 2.0f * data.opacity())); } else { nodes[ContentLeaf].opacity = data.opacity(); } nodes[ContentLeaf].coordinateType = UnnormalizedCoordinates; if (data.crossFadeProgress() != 1.0) { OpenGLWindowPixmap *previous = previousWindowPixmap(); nodes[PreviousContentLeaf].texture = previous ? previous->texture() : NULL; nodes[PreviousContentLeaf].hasAlpha = !isOpaque(); nodes[PreviousContentLeaf].opacity = data.opacity() * (1.0 - data.crossFadeProgress()); nodes[PreviousContentLeaf].coordinateType = NormalizedCoordinates; } } QMatrix4x4 SceneOpenGL2Window::modelViewProjectionMatrix(int mask, const WindowPaintData &data) const { SceneOpenGL2 *scene = static_cast(m_scene); const QMatrix4x4 pMatrix = data.projectionMatrix(); const QMatrix4x4 mvMatrix = data.modelViewMatrix(); // An effect may want to override the default projection matrix in some cases, // such as when it is rendering a window on a render target that doesn't have // the same dimensions as the default framebuffer. // // Note that the screen transformation is not applied here. if (!pMatrix.isIdentity()) return pMatrix * mvMatrix; // If an effect has specified a model-view matrix, we multiply that matrix // with the default projection matrix. If the effect hasn't specified a // model-view matrix, mvMatrix will be the identity matrix. if (mask & Scene::PAINT_SCREEN_TRANSFORMED) return scene->screenProjectionMatrix() * mvMatrix; return scene->projectionMatrix() * mvMatrix; } static void renderSubSurface(GLShader *shader, const QMatrix4x4 &mvp, const QMatrix4x4 &windowMatrix, OpenGLWindowPixmap *pixmap) { QMatrix4x4 newWindowMatrix = windowMatrix; newWindowMatrix.translate(pixmap->subSurface()->position().x(), pixmap->subSurface()->position().y()); if (!pixmap->texture()->isNull()) { // render this texture shader->setUniform(GLShader::ModelViewProjectionMatrix, mvp * newWindowMatrix); auto texture = pixmap->texture(); texture->bind(); texture->render(QRegion(), QRect(0, 0, texture->width(), texture->height())); texture->unbind(); } const auto &children = pixmap->children(); for (auto pixmap : children) { if (pixmap->subSurface().isNull() || pixmap->subSurface()->surface().isNull() || !pixmap->subSurface()->surface()->isMapped()) { continue; } renderSubSurface(shader, mvp, newWindowMatrix, static_cast(pixmap)); } } void SceneOpenGL2Window::performPaint(int mask, QRegion region, WindowPaintData data) { if (!beginRenderWindow(mask, region, data)) return; SceneOpenGL2 *scene = static_cast(m_scene); QMatrix4x4 windowMatrix = transformation(mask, data); const QMatrix4x4 modelViewProjection = modelViewProjectionMatrix(mask, data); const QMatrix4x4 mvpMatrix = modelViewProjection * windowMatrix; GLShader *shader = data.shader; if (!shader) { ShaderTraits traits = ShaderTrait::MapTexture; if (data.opacity() != 1.0 || data.brightness() != 1.0 || data.crossFadeProgress() != 1.0) traits |= ShaderTrait::Modulate; if (data.saturation() != 1.0) traits |= ShaderTrait::AdjustSaturation; shader = ShaderManager::instance()->pushShader(traits); } shader->setUniform(GLShader::ModelViewProjectionMatrix, mvpMatrix); if (ColorCorrection *cc = scene->colorCorrection()) { cc->setupForOutput(data.screen()); } shader->setUniform(GLShader::Saturation, data.saturation()); const GLenum filter = (mask & (Effect::PAINT_WINDOW_TRANSFORMED | Effect::PAINT_SCREEN_TRANSFORMED)) && options->glSmoothScale() != 0 ? GL_LINEAR : GL_NEAREST; WindowQuadList quads[LeafCount]; // Split the quads into separate lists for each type foreach (const WindowQuad &quad, data.quads) { switch (quad.type()) { case WindowQuadDecoration: quads[DecorationLeaf].append(quad); continue; case WindowQuadContents: quads[ContentLeaf].append(quad); continue; case WindowQuadShadow: quads[ShadowLeaf].append(quad); continue; default: continue; } } if (data.crossFadeProgress() != 1.0) { OpenGLWindowPixmap *previous = previousWindowPixmap(); if (previous) { const QRect &oldGeometry = previous->contentsRect(); for (const WindowQuad &quad : quads[ContentLeaf]) { // we need to create new window quads with normalize texture coordinates // normal quads divide the x/y position by width/height. This would not work as the texture // is larger than the visible content in case of a decorated Client resulting in garbage being shown. // So we calculate the normalized texture coordinate in the Client's new content space and map it to // the previous Client's content space. WindowQuad newQuad(WindowQuadContents); for (int i = 0; i < 4; ++i) { const qreal xFactor = qreal(quad[i].textureX() - toplevel->clientPos().x())/qreal(toplevel->clientSize().width()); const qreal yFactor = qreal(quad[i].textureY() - toplevel->clientPos().y())/qreal(toplevel->clientSize().height()); WindowVertex vertex(quad[i].x(), quad[i].y(), (xFactor * oldGeometry.width() + oldGeometry.x())/qreal(previous->size().width()), (yFactor * oldGeometry.height() + oldGeometry.y())/qreal(previous->size().height())); newQuad[i] = vertex; } quads[PreviousContentLeaf].append(newQuad); } } } const bool indexedQuads = GLVertexBuffer::supportsIndexedQuads(); const GLenum primitiveType = indexedQuads ? GL_QUADS : GL_TRIANGLES; const int verticesPerQuad = indexedQuads ? 4 : 6; const size_t size = verticesPerQuad * (quads[0].count() + quads[1].count() + quads[2].count() + quads[3].count()) * sizeof(GLVertex2D); GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer(); GLVertex2D *map = (GLVertex2D *) vbo->map(size); LeafNode nodes[LeafCount]; setupLeafNodes(nodes, quads, data); for (int i = 0, v = 0; i < LeafCount; i++) { if (quads[i].isEmpty() || !nodes[i].texture) continue; nodes[i].firstVertex = v; nodes[i].vertexCount = quads[i].count() * verticesPerQuad; const QMatrix4x4 matrix = nodes[i].texture->matrix(nodes[i].coordinateType); quads[i].makeInterleavedArrays(primitiveType, &map[v], matrix); v += quads[i].count() * verticesPerQuad; } vbo->unmap(); vbo->bindArrays(); // Make sure the blend function is set up correctly in case we will be doing blending glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); float opacity = -1.0; for (int i = 0; i < LeafCount; i++) { if (nodes[i].vertexCount == 0) continue; setBlendEnabled(nodes[i].hasAlpha || nodes[i].opacity < 1.0); if (opacity != nodes[i].opacity) { shader->setUniform(GLShader::ModulationConstant, modulate(nodes[i].opacity, data.brightness())); opacity = nodes[i].opacity; } nodes[i].texture->setFilter(filter); nodes[i].texture->setWrapMode(GL_CLAMP_TO_EDGE); nodes[i].texture->bind(); vbo->draw(region, primitiveType, nodes[i].firstVertex, nodes[i].vertexCount, m_hardwareClipping); } vbo->unbindArrays(); setBlendEnabled(false); // render sub-surfaces const auto &children = windowPixmap()->children(); windowMatrix.translate(toplevel->clientPos().x(), toplevel->clientPos().y()); for (auto pixmap : children) { if (pixmap->subSurface().isNull() || pixmap->subSurface()->surface().isNull() || !pixmap->subSurface()->surface()->isMapped()) { continue; } renderSubSurface(shader, modelViewProjection, windowMatrix, static_cast(pixmap)); } if (!data.shader) ShaderManager::instance()->popShader(); endRenderWindow(); } //**************************************** // OpenGLWindowPixmap //**************************************** OpenGLWindowPixmap::OpenGLWindowPixmap(Scene::Window *window, SceneOpenGL* scene) : WindowPixmap(window) , m_texture(scene->createTexture()) , m_scene(scene) { } OpenGLWindowPixmap::OpenGLWindowPixmap(const QPointer &subSurface, WindowPixmap *parent, SceneOpenGL *scene) : WindowPixmap(subSurface, parent) , m_texture(scene->createTexture()) , m_scene(scene) { } OpenGLWindowPixmap::~OpenGLWindowPixmap() { } bool OpenGLWindowPixmap::bind() { if (!m_texture->isNull()) { // always call updateBuffer to get the sub-surface tree updated if (subSurface().isNull() && !toplevel()->damage().isEmpty()) { updateBuffer(); } auto s = surface(); if (s && !s->trackedDamage().isEmpty()) { m_texture->updateFromPixmap(this); // mipmaps need to be updated m_texture->setDirty(); } if (subSurface().isNull()) { toplevel()->resetDamage(); } // also bind all children for (auto it = children().constBegin(); it != children().constEnd(); ++it) { static_cast(*it)->bind(); } return true; } // also bind all children, needs to be done before checking isValid // as there might be valid children to render, see https://bugreports.qt.io/browse/QTBUG-52192 if (subSurface().isNull()) { updateBuffer(); } for (auto it = children().constBegin(); it != children().constEnd(); ++it) { static_cast(*it)->bind(); } if (!isValid()) { return false; } bool success = m_texture->load(this); if (success) { if (subSurface().isNull()) { toplevel()->resetDamage(); } } else qCDebug(KWIN_CORE) << "Failed to bind window"; return success; } WindowPixmap *OpenGLWindowPixmap::createChild(const QPointer &subSurface) { return new OpenGLWindowPixmap(subSurface, this, m_scene); } //**************************************** // SceneOpenGL::EffectFrame //**************************************** GLTexture* SceneOpenGL::EffectFrame::m_unstyledTexture = NULL; QPixmap* SceneOpenGL::EffectFrame::m_unstyledPixmap = NULL; SceneOpenGL::EffectFrame::EffectFrame(EffectFrameImpl* frame, SceneOpenGL *scene) : Scene::EffectFrame(frame) , m_texture(NULL) , m_textTexture(NULL) , m_oldTextTexture(NULL) , m_textPixmap(NULL) , m_iconTexture(NULL) , m_oldIconTexture(NULL) , m_selectionTexture(NULL) , m_unstyledVBO(NULL) , m_scene(scene) { if (m_effectFrame->style() == EffectFrameUnstyled && !m_unstyledTexture) { updateUnstyledTexture(); } } SceneOpenGL::EffectFrame::~EffectFrame() { delete m_texture; delete m_textTexture; delete m_textPixmap; delete m_oldTextTexture; delete m_iconTexture; delete m_oldIconTexture; delete m_selectionTexture; delete m_unstyledVBO; } void SceneOpenGL::EffectFrame::free() { glFlush(); delete m_texture; m_texture = NULL; delete m_textTexture; m_textTexture = NULL; delete m_textPixmap; m_textPixmap = NULL; delete m_iconTexture; m_iconTexture = NULL; delete m_selectionTexture; m_selectionTexture = NULL; delete m_unstyledVBO; m_unstyledVBO = NULL; delete m_oldIconTexture; m_oldIconTexture = NULL; delete m_oldTextTexture; m_oldTextTexture = NULL; } void SceneOpenGL::EffectFrame::freeIconFrame() { delete m_iconTexture; m_iconTexture = NULL; } void SceneOpenGL::EffectFrame::freeTextFrame() { delete m_textTexture; m_textTexture = NULL; delete m_textPixmap; m_textPixmap = NULL; } void SceneOpenGL::EffectFrame::freeSelection() { delete m_selectionTexture; m_selectionTexture = NULL; } void SceneOpenGL::EffectFrame::crossFadeIcon() { delete m_oldIconTexture; m_oldIconTexture = m_iconTexture; m_iconTexture = NULL; } void SceneOpenGL::EffectFrame::crossFadeText() { delete m_oldTextTexture; m_oldTextTexture = m_textTexture; m_textTexture = NULL; } void SceneOpenGL::EffectFrame::render(QRegion region, double opacity, double frameOpacity) { if (m_effectFrame->geometry().isEmpty()) return; // Nothing to display region = infiniteRegion(); // TODO: Old region doesn't seem to work with OpenGL GLShader* shader = m_effectFrame->shader(); if (!shader) { shader = ShaderManager::instance()->pushShader(ShaderTrait::MapTexture | ShaderTrait::Modulate); } else if (shader) { ShaderManager::instance()->pushShader(shader); } if (shader) { shader->setUniform(GLShader::ModulationConstant, QVector4D(1.0, 1.0, 1.0, 1.0)); shader->setUniform(GLShader::Saturation, 1.0f); } const QMatrix4x4 projection = m_scene->projectionMatrix(); glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // Render the actual frame if (m_effectFrame->style() == EffectFrameUnstyled) { if (!m_unstyledVBO) { m_unstyledVBO = new GLVertexBuffer(GLVertexBuffer::Static); QRect area = m_effectFrame->geometry(); area.moveTo(0, 0); area.adjust(-5, -5, 5, 5); const int roundness = 5; QVector verts, texCoords; verts.reserve(84); texCoords.reserve(84); // top left verts << area.left() << area.top(); texCoords << 0.0f << 0.0f; verts << area.left() << area.top() + roundness; texCoords << 0.0f << 0.5f; verts << area.left() + roundness << area.top(); texCoords << 0.5f << 0.0f; verts << area.left() + roundness << area.top() + roundness; texCoords << 0.5f << 0.5f; verts << area.left() << area.top() + roundness; texCoords << 0.0f << 0.5f; verts << area.left() + roundness << area.top(); texCoords << 0.5f << 0.0f; // top verts << area.left() + roundness << area.top(); texCoords << 0.5f << 0.0f; verts << area.left() + roundness << area.top() + roundness; texCoords << 0.5f << 0.5f; verts << area.right() - roundness << area.top(); texCoords << 0.5f << 0.0f; verts << area.left() + roundness << area.top() + roundness; texCoords << 0.5f << 0.5f; verts << area.right() - roundness << area.top() + roundness; texCoords << 0.5f << 0.5f; verts << area.right() - roundness << area.top(); texCoords << 0.5f << 0.0f; // top right verts << area.right() - roundness << area.top(); texCoords << 0.5f << 0.0f; verts << area.right() - roundness << area.top() + roundness; texCoords << 0.5f << 0.5f; verts << area.right() << area.top(); texCoords << 1.0f << 0.0f; verts << area.right() - roundness << area.top() + roundness; texCoords << 0.5f << 0.5f; verts << area.right() << area.top() + roundness; texCoords << 1.0f << 0.5f; verts << area.right() << area.top(); texCoords << 1.0f << 0.0f; // bottom left verts << area.left() << area.bottom() - roundness; texCoords << 0.0f << 0.5f; verts << area.left() << area.bottom(); texCoords << 0.0f << 1.0f; verts << area.left() + roundness << area.bottom() - roundness; texCoords << 0.5f << 0.5f; verts << area.left() + roundness << area.bottom(); texCoords << 0.5f << 1.0f; verts << area.left() << area.bottom(); texCoords << 0.0f << 1.0f; verts << area.left() + roundness << area.bottom() - roundness; texCoords << 0.5f << 0.5f; // bottom verts << area.left() + roundness << area.bottom() - roundness; texCoords << 0.5f << 0.5f; verts << area.left() + roundness << area.bottom(); texCoords << 0.5f << 1.0f; verts << area.right() - roundness << area.bottom() - roundness; texCoords << 0.5f << 0.5f; verts << area.left() + roundness << area.bottom(); texCoords << 0.5f << 1.0f; verts << area.right() - roundness << area.bottom(); texCoords << 0.5f << 1.0f; verts << area.right() - roundness << area.bottom() - roundness; texCoords << 0.5f << 0.5f; // bottom right verts << area.right() - roundness << area.bottom() - roundness; texCoords << 0.5f << 0.5f; verts << area.right() - roundness << area.bottom(); texCoords << 0.5f << 1.0f; verts << area.right() << area.bottom() - roundness; texCoords << 1.0f << 0.5f; verts << area.right() - roundness << area.bottom(); texCoords << 0.5f << 1.0f; verts << area.right() << area.bottom(); texCoords << 1.0f << 1.0f; verts << area.right() << area.bottom() - roundness; texCoords << 1.0f << 0.5f; // center verts << area.left() << area.top() + roundness; texCoords << 0.0f << 0.5f; verts << area.left() << area.bottom() - roundness; texCoords << 0.0f << 0.5f; verts << area.right() << area.top() + roundness; texCoords << 1.0f << 0.5f; verts << area.left() << area.bottom() - roundness; texCoords << 0.0f << 0.5f; verts << area.right() << area.bottom() - roundness; texCoords << 1.0f << 0.5f; verts << area.right() << area.top() + roundness; texCoords << 1.0f << 0.5f; m_unstyledVBO->setData(verts.count() / 2, 2, verts.data(), texCoords.data()); } if (shader) { const float a = opacity * frameOpacity; shader->setUniform(GLShader::ModulationConstant, QVector4D(a, a, a, a)); } m_unstyledTexture->bind(); const QPoint pt = m_effectFrame->geometry().topLeft(); QMatrix4x4 mvp(projection); mvp.translate(pt.x(), pt.y()); shader->setUniform(GLShader::ModelViewProjectionMatrix, mvp); m_unstyledVBO->render(region, GL_TRIANGLES); m_unstyledTexture->unbind(); } else if (m_effectFrame->style() == EffectFrameStyled) { if (!m_texture) // Lazy creation updateTexture(); if (shader) { const float a = opacity * frameOpacity; shader->setUniform(GLShader::ModulationConstant, QVector4D(a, a, a, a)); } m_texture->bind(); qreal left, top, right, bottom; m_effectFrame->frame().getMargins(left, top, right, bottom); // m_geometry is the inner geometry const QRect rect = m_effectFrame->geometry().adjusted(-left, -top, right, bottom); QMatrix4x4 mvp(projection); mvp.translate(rect.x(), rect.y()); shader->setUniform(GLShader::ModelViewProjectionMatrix, mvp); m_texture->render(region, rect); m_texture->unbind(); } if (!m_effectFrame->selection().isNull()) { if (!m_selectionTexture) { // Lazy creation QPixmap pixmap = m_effectFrame->selectionFrame().framePixmap(); if (!pixmap.isNull()) m_selectionTexture = new GLTexture(pixmap); } if (m_selectionTexture) { if (shader) { const float a = opacity * frameOpacity; shader->setUniform(GLShader::ModulationConstant, QVector4D(a, a, a, a)); } QMatrix4x4 mvp(projection); mvp.translate(m_effectFrame->selection().x(), m_effectFrame->selection().y()); shader->setUniform(GLShader::ModelViewProjectionMatrix, mvp); glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); m_selectionTexture->bind(); m_selectionTexture->render(region, m_effectFrame->selection()); m_selectionTexture->unbind(); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); } } // Render icon if (!m_effectFrame->icon().isNull() && !m_effectFrame->iconSize().isEmpty()) { QPoint topLeft(m_effectFrame->geometry().x(), m_effectFrame->geometry().center().y() - m_effectFrame->iconSize().height() / 2); QMatrix4x4 mvp(projection); mvp.translate(topLeft.x(), topLeft.y()); shader->setUniform(GLShader::ModelViewProjectionMatrix, mvp); if (m_effectFrame->isCrossFade() && m_oldIconTexture) { if (shader) { const float a = opacity * (1.0 - m_effectFrame->crossFadeProgress()); shader->setUniform(GLShader::ModulationConstant, QVector4D(a, a, a, a)); } m_oldIconTexture->bind(); m_oldIconTexture->render(region, QRect(topLeft, m_effectFrame->iconSize())); m_oldIconTexture->unbind(); if (shader) { const float a = opacity * m_effectFrame->crossFadeProgress(); shader->setUniform(GLShader::ModulationConstant, QVector4D(a, a, a, a)); } } else { if (shader) { const QVector4D constant(opacity, opacity, opacity, opacity); shader->setUniform(GLShader::ModulationConstant, constant); } } if (!m_iconTexture) { // lazy creation m_iconTexture = new GLTexture(m_effectFrame->icon().pixmap(m_effectFrame->iconSize())); } m_iconTexture->bind(); m_iconTexture->render(region, QRect(topLeft, m_effectFrame->iconSize())); m_iconTexture->unbind(); } // Render text if (!m_effectFrame->text().isEmpty()) { QMatrix4x4 mvp(projection); mvp.translate(m_effectFrame->geometry().x(), m_effectFrame->geometry().y()); shader->setUniform(GLShader::ModelViewProjectionMatrix, mvp); if (m_effectFrame->isCrossFade() && m_oldTextTexture) { if (shader) { const float a = opacity * (1.0 - m_effectFrame->crossFadeProgress()); shader->setUniform(GLShader::ModulationConstant, QVector4D(a, a, a, a)); } m_oldTextTexture->bind(); m_oldTextTexture->render(region, m_effectFrame->geometry()); m_oldTextTexture->unbind(); if (shader) { const float a = opacity * m_effectFrame->crossFadeProgress(); shader->setUniform(GLShader::ModulationConstant, QVector4D(a, a, a, a)); } } else { if (shader) { const QVector4D constant(opacity, opacity, opacity, opacity); shader->setUniform(GLShader::ModulationConstant, constant); } } if (!m_textTexture) // Lazy creation updateTextTexture(); if (m_textTexture) { m_textTexture->bind(); m_textTexture->render(region, m_effectFrame->geometry()); m_textTexture->unbind(); } } if (shader) { ShaderManager::instance()->popShader(); } glDisable(GL_BLEND); } void SceneOpenGL::EffectFrame::updateTexture() { delete m_texture; m_texture = 0L; if (m_effectFrame->style() == EffectFrameStyled) { QPixmap pixmap = m_effectFrame->frame().framePixmap(); m_texture = new GLTexture(pixmap); } } void SceneOpenGL::EffectFrame::updateTextTexture() { delete m_textTexture; m_textTexture = 0L; delete m_textPixmap; m_textPixmap = 0L; if (m_effectFrame->text().isEmpty()) return; // Determine position on texture to paint text QRect rect(QPoint(0, 0), m_effectFrame->geometry().size()); if (!m_effectFrame->icon().isNull() && !m_effectFrame->iconSize().isEmpty()) rect.setLeft(m_effectFrame->iconSize().width()); // If static size elide text as required QString text = m_effectFrame->text(); if (m_effectFrame->isStatic()) { QFontMetrics metrics(m_effectFrame->font()); text = metrics.elidedText(text, Qt::ElideRight, rect.width()); } m_textPixmap = new QPixmap(m_effectFrame->geometry().size()); m_textPixmap->fill(Qt::transparent); QPainter p(m_textPixmap); p.setFont(m_effectFrame->font()); if (m_effectFrame->style() == EffectFrameStyled) p.setPen(m_effectFrame->styledTextColor()); else // TODO: What about no frame? Custom color setting required p.setPen(Qt::white); p.drawText(rect, m_effectFrame->alignment(), text); p.end(); m_textTexture = new GLTexture(*m_textPixmap); } void SceneOpenGL::EffectFrame::updateUnstyledTexture() { delete m_unstyledTexture; m_unstyledTexture = 0L; delete m_unstyledPixmap; m_unstyledPixmap = 0L; // Based off circle() from kwinxrenderutils.cpp #define CS 8 m_unstyledPixmap = new QPixmap(2 * CS, 2 * CS); m_unstyledPixmap->fill(Qt::transparent); QPainter p(m_unstyledPixmap); p.setRenderHint(QPainter::Antialiasing); p.setPen(Qt::NoPen); p.setBrush(Qt::black); p.drawEllipse(m_unstyledPixmap->rect()); p.end(); #undef CS m_unstyledTexture = new GLTexture(*m_unstyledPixmap); } void SceneOpenGL::EffectFrame::cleanup() { delete m_unstyledTexture; m_unstyledTexture = NULL; delete m_unstyledPixmap; m_unstyledPixmap = NULL; } //**************************************** // SceneOpenGL::Shadow //**************************************** class DecorationShadowTextureCache { public: ~DecorationShadowTextureCache(); DecorationShadowTextureCache(const DecorationShadowTextureCache&) = delete; static DecorationShadowTextureCache &instance(); void unregister(SceneOpenGLShadow *shadow); QSharedPointer getTexture(SceneOpenGLShadow *shadow); private: DecorationShadowTextureCache() = default; struct Data { QSharedPointer texture; QVector shadows; }; QHash m_cache; }; DecorationShadowTextureCache &DecorationShadowTextureCache::instance() { static DecorationShadowTextureCache s_instance; return s_instance; } DecorationShadowTextureCache::~DecorationShadowTextureCache() { Q_ASSERT(m_cache.isEmpty()); } void DecorationShadowTextureCache::unregister(SceneOpenGLShadow *shadow) { auto it = m_cache.begin(); while (it != m_cache.end()) { auto &d = it.value(); // check whether the Vector of Shadows contains our shadow and remove all of them auto glIt = d.shadows.begin(); while (glIt != d.shadows.end()) { if (*glIt == shadow) { glIt = d.shadows.erase(glIt); } else { glIt++; } } // if there are no shadows any more we can erase the cache entry if (d.shadows.isEmpty()) { it = m_cache.erase(it); } else { it++; } } } QSharedPointer DecorationShadowTextureCache::getTexture(SceneOpenGLShadow *shadow) { Q_ASSERT(shadow->hasDecorationShadow()); unregister(shadow); const auto &decoShadow = shadow->decorationShadow(); Q_ASSERT(!decoShadow.isNull()); auto it = m_cache.find(decoShadow.data()); if (it != m_cache.end()) { Q_ASSERT(!it.value().shadows.contains(shadow)); it.value().shadows << shadow; return it.value().texture; } Data d; d.shadows << shadow; d.texture = QSharedPointer::create(shadow->decorationShadowImage()); m_cache.insert(decoShadow.data(), d); return d.texture; } SceneOpenGLShadow::SceneOpenGLShadow(Toplevel *toplevel) : Shadow(toplevel) { } SceneOpenGLShadow::~SceneOpenGLShadow() { if (effects) { effects->makeOpenGLContextCurrent(); DecorationShadowTextureCache::instance().unregister(this); m_texture.reset(); } } void SceneOpenGLShadow::buildQuads() { // prepare window quads m_shadowQuads.clear(); const QSizeF top(elementSize(ShadowElementTop)); const QSizeF topRight(elementSize(ShadowElementTopRight)); const QSizeF right(elementSize(ShadowElementRight)); const QSizeF bottomRight(elementSize(ShadowElementBottomRight)); const QSizeF bottom(elementSize(ShadowElementBottom)); const QSizeF bottomLeft(elementSize(ShadowElementBottomLeft)); const QSizeF left(elementSize(ShadowElementLeft)); const QSizeF topLeft(elementSize(ShadowElementTopLeft)); if ((left.width() - leftOffset() > topLevel()->width()) || (right.width() - rightOffset() > topLevel()->width()) || (top.height() - topOffset() > topLevel()->height()) || (bottom.height() - bottomOffset() > topLevel()->height())) { // if our shadow is bigger than the window, we don't render the shadow setShadowRegion(QRegion()); return; } const QRectF outerRect(QPointF(-leftOffset(), -topOffset()), QPointF(topLevel()->width() + rightOffset(), topLevel()->height() + bottomOffset())); const qreal width = topLeft.width() + top.width() + topRight.width(); const qreal height = topLeft.height() + left.height() + bottomLeft.height(); qreal tx1(0.0), tx2(0.0), ty1(0.0), ty2(0.0); tx2 = topLeft.width()/width; ty2 = topLeft.height()/height; WindowQuad topLeftQuad(WindowQuadShadow); topLeftQuad[ 0 ] = WindowVertex(outerRect.x(), outerRect.y(), tx1, ty1); topLeftQuad[ 1 ] = WindowVertex(outerRect.x() + topLeft.width(), outerRect.y(), tx2, ty1); topLeftQuad[ 2 ] = WindowVertex(outerRect.x() + topLeft.width(), outerRect.y() + topLeft.height(), tx2, ty2); topLeftQuad[ 3 ] = WindowVertex(outerRect.x(), outerRect.y() + topLeft.height(), tx1, ty2); m_shadowQuads.append(topLeftQuad); tx1 = tx2; tx2 = (topLeft.width() + top.width())/width; ty2 = top.height()/height; WindowQuad topQuad(WindowQuadShadow); topQuad[ 0 ] = WindowVertex(outerRect.x() + topLeft.width(), outerRect.y(), tx1, ty1); topQuad[ 1 ] = WindowVertex(outerRect.right() - topRight.width(), outerRect.y(), tx2, ty1); topQuad[ 2 ] = WindowVertex(outerRect.right() - topRight.width(), outerRect.y() + top.height(),tx2, ty2); topQuad[ 3 ] = WindowVertex(outerRect.x() + topLeft.width(), outerRect.y() + top.height(), tx1, ty2); m_shadowQuads.append(topQuad); tx1 = tx2; tx2 = 1.0; ty2 = topRight.height()/height; WindowQuad topRightQuad(WindowQuadShadow); topRightQuad[ 0 ] = WindowVertex(outerRect.right() - topRight.width(), outerRect.y(), tx1, ty1); topRightQuad[ 1 ] = WindowVertex(outerRect.right(), outerRect.y(), tx2, ty1); topRightQuad[ 2 ] = WindowVertex(outerRect.right(), outerRect.y() + topRight.height(), tx2, ty2); topRightQuad[ 3 ] = WindowVertex(outerRect.right() - topRight.width(), outerRect.y() + topRight.height(), tx1, ty2); m_shadowQuads.append(topRightQuad); tx1 = (width - right.width())/width; ty1 = topRight.height()/height; ty2 = (topRight.height() + right.height())/height; WindowQuad rightQuad(WindowQuadShadow); rightQuad[ 0 ] = WindowVertex(outerRect.right() - right.width(), outerRect.y() + topRight.height(), tx1, ty1); rightQuad[ 1 ] = WindowVertex(outerRect.right(), outerRect.y() + topRight.height(), tx2, ty1); rightQuad[ 2 ] = WindowVertex(outerRect.right(), outerRect.bottom() - bottomRight.height(), tx2, ty2); rightQuad[ 3 ] = WindowVertex(outerRect.right() - right.width(), outerRect.bottom() - bottomRight.height(), tx1, ty2); m_shadowQuads.append(rightQuad); tx1 = (width - bottomRight.width())/width; ty1 = ty2; ty2 = 1.0; WindowQuad bottomRightQuad(WindowQuadShadow); bottomRightQuad[ 0 ] = WindowVertex(outerRect.right() - bottomRight.width(), outerRect.bottom() - bottomRight.height(), tx1, ty1); bottomRightQuad[ 1 ] = WindowVertex(outerRect.right(), outerRect.bottom() - bottomRight.height(), tx2, ty1); bottomRightQuad[ 2 ] = WindowVertex(outerRect.right(), outerRect.bottom(), tx2, ty2); bottomRightQuad[ 3 ] = WindowVertex(outerRect.right() - bottomRight.width(), outerRect.bottom(), tx1, ty2); m_shadowQuads.append(bottomRightQuad); tx2 = tx1; tx1 = bottomLeft.width()/width; ty1 = (height - bottom.height())/height; WindowQuad bottomQuad(WindowQuadShadow); bottomQuad[ 0 ] = WindowVertex(outerRect.x() + bottomLeft.width(), outerRect.bottom() - bottom.height(), tx1, ty1); bottomQuad[ 1 ] = WindowVertex(outerRect.right() - bottomRight.width(), outerRect.bottom() - bottom.height(), tx2, ty1); bottomQuad[ 2 ] = WindowVertex(outerRect.right() - bottomRight.width(), outerRect.bottom(), tx2, ty2); bottomQuad[ 3 ] = WindowVertex(outerRect.x() + bottomLeft.width(), outerRect.bottom(), tx1, ty2); m_shadowQuads.append(bottomQuad); tx1 = 0.0; tx2 = bottomLeft.width()/width; ty1 = (height - bottomLeft.height())/height; WindowQuad bottomLeftQuad(WindowQuadShadow); bottomLeftQuad[ 0 ] = WindowVertex(outerRect.x(), outerRect.bottom() - bottomLeft.height(), tx1, ty1); bottomLeftQuad[ 1 ] = WindowVertex(outerRect.x() + bottomLeft.width(), outerRect.bottom() - bottomLeft.height(), tx2, ty1); bottomLeftQuad[ 2 ] = WindowVertex(outerRect.x() + bottomLeft.width(), outerRect.bottom(), tx2, ty2); bottomLeftQuad[ 3 ] = WindowVertex(outerRect.x(), outerRect.bottom(), tx1, ty2); m_shadowQuads.append(bottomLeftQuad); tx2 = left.width()/width; ty2 = ty1; ty1 = topLeft.height()/height; WindowQuad leftQuad(WindowQuadShadow); leftQuad[ 0 ] = WindowVertex(outerRect.x(), outerRect.y() + topLeft.height(), tx1, ty1); leftQuad[ 1 ] = WindowVertex(outerRect.x() + left.width(), outerRect.y() + topLeft.height(), tx2, ty1); leftQuad[ 2 ] = WindowVertex(outerRect.x() + left.width(), outerRect.bottom() - bottomLeft.height(), tx2, ty2); leftQuad[ 3 ] = WindowVertex(outerRect.x(), outerRect.bottom() - bottomLeft.height(), tx1, ty2); m_shadowQuads.append(leftQuad); } bool SceneOpenGLShadow::prepareBackend() { if (hasDecorationShadow()) { // simplifies a lot by going directly to effects->makeOpenGLContextCurrent(); m_texture = DecorationShadowTextureCache::instance().getTexture(this); return true; } const QSize top(shadowPixmap(ShadowElementTop).size()); const QSize topRight(shadowPixmap(ShadowElementTopRight).size()); const QSize right(shadowPixmap(ShadowElementRight).size()); const QSize bottom(shadowPixmap(ShadowElementBottom).size()); const QSize bottomLeft(shadowPixmap(ShadowElementBottomLeft).size()); const QSize left(shadowPixmap(ShadowElementLeft).size()); const QSize topLeft(shadowPixmap(ShadowElementTopLeft).size()); const int width = topLeft.width() + top.width() + topRight.width(); const int height = topLeft.height() + left.height() + bottomLeft.height(); QImage image(width, height, QImage::Format_ARGB32); image.fill(Qt::transparent); QPainter p; p.begin(&image); p.drawPixmap(0, 0, shadowPixmap(ShadowElementTopLeft)); p.drawPixmap(topLeft.width(), 0, shadowPixmap(ShadowElementTop)); p.drawPixmap(topLeft.width() + top.width(), 0, shadowPixmap(ShadowElementTopRight)); p.drawPixmap(0, topLeft.height(), shadowPixmap(ShadowElementLeft)); p.drawPixmap(width - right.width(), topRight.height(), shadowPixmap(ShadowElementRight)); p.drawPixmap(0, topLeft.height() + left.height(), shadowPixmap(ShadowElementBottomLeft)); p.drawPixmap(bottomLeft.width(), height - bottom.height(), shadowPixmap(ShadowElementBottom)); p.drawPixmap(bottomLeft.width() + bottom.width(), topRight.height() + right.height(), shadowPixmap(ShadowElementBottomRight)); p.end(); // Check if the image is alpha-only in practice, and if so convert it to an 8-bpp format if (!GLPlatform::instance()->isGLES() && GLTexture::supportsSwizzle() && GLTexture::supportsFormatRG()) { QImage alphaImage(image.size(), QImage::Format_Indexed8); // Change to Format_Alpha8 w/ Qt 5.5 bool alphaOnly = true; for (ptrdiff_t y = 0; alphaOnly && y < image.height(); y++) { const uint32_t * const src = reinterpret_cast(image.scanLine(y)); uint8_t * const dst = reinterpret_cast(alphaImage.scanLine(y)); for (ptrdiff_t x = 0; x < image.width(); x++) { if (src[x] & 0x00ffffff) alphaOnly = false; dst[x] = qAlpha(src[x]); } } if (alphaOnly) { image = alphaImage; } } effects->makeOpenGLContextCurrent(); m_texture = QSharedPointer::create(image); if (m_texture->internalFormat() == GL_R8) { // Swizzle red to alpha and all other channels to zero m_texture->bind(); m_texture->setSwizzle(GL_ZERO, GL_ZERO, GL_ZERO, GL_RED); } return true; } SwapProfiler::SwapProfiler() { init(); } void SwapProfiler::init() { m_time = 2 * 1000*1000; // we start with a long time mean of 2ms ... m_counter = 0; } void SwapProfiler::begin() { m_timer.start(); } char SwapProfiler::end() { // .. and blend in actual values. // this way we prevent extremes from killing our long time mean m_time = (10*m_time + m_timer.nsecsElapsed())/11; if (++m_counter > 500) { const bool blocks = m_time > 1000 * 1000; // 1ms, i get ~250µs and ~7ms w/o triple buffering... qCDebug(KWIN_CORE) << "Triple buffering detection:" << QString(blocks ? QStringLiteral("NOT available") : QStringLiteral("Available")) << " - Mean block time:" << m_time/(1000.0*1000.0) << "ms"; return blocks ? 'd' : 't'; } return 0; } SceneOpenGLDecorationRenderer::SceneOpenGLDecorationRenderer(Decoration::DecoratedClientImpl *client) : Renderer(client) , m_texture() { connect(this, &Renderer::renderScheduled, client->client(), static_cast(&AbstractClient::addRepaint)); } SceneOpenGLDecorationRenderer::~SceneOpenGLDecorationRenderer() = default; // Rotates the given source rect 90° counter-clockwise, // and flips it vertically static QImage rotate(const QImage &srcImage, const QRect &srcRect) { QImage image(srcRect.height(), srcRect.width(), srcImage.format()); const uint32_t *src = reinterpret_cast(srcImage.bits()); uint32_t *dst = reinterpret_cast(image.bits()); for (int x = 0; x < image.width(); x++) { const uint32_t *s = src + (srcRect.y() + x) * srcImage.width() + srcRect.x(); uint32_t *d = dst + x; for (int y = 0; y < image.height(); y++) { *d = s[y]; d += image.width(); } } return image; } void SceneOpenGLDecorationRenderer::render() { const QRegion scheduled = getScheduled(); if (scheduled.isEmpty()) { return; } if (areImageSizesDirty()) { resizeTexture(); resetImageSizesDirty(); } QRect left, top, right, bottom; client()->client()->layoutDecorationRects(left, top, right, bottom); const QRect geometry = scheduled.boundingRect(); auto renderPart = [this](const QRect &geo, const QRect &partRect, const QPoint &offset, bool rotated = false) { if (geo.isNull()) { return; } QImage image = renderToImage(geo); if (rotated) { // TODO: get this done directly when rendering to the image image = rotate(image, QRect(geo.topLeft() - partRect.topLeft(), geo.size())); } m_texture->update(image, geo.topLeft() - partRect.topLeft() + offset); }; renderPart(left.intersected(geometry), left, QPoint(0, top.height() + bottom.height() + 2), true); renderPart(top.intersected(geometry), top, QPoint(0, 0)); renderPart(right.intersected(geometry), right, QPoint(0, top.height() + bottom.height() + left.width() + 3), true); renderPart(bottom.intersected(geometry), bottom, QPoint(0, top.height() + 1)); } static int align(int value, int align) { return (value + align - 1) & ~(align - 1); } void SceneOpenGLDecorationRenderer::resizeTexture() { QRect left, top, right, bottom; client()->client()->layoutDecorationRects(left, top, right, bottom); QSize size; size.rwidth() = qMax(qMax(top.width(), bottom.width()), qMax(left.height(), right.height())); size.rheight() = top.height() + bottom.height() + left.width() + right.width() + 3; size.rwidth() = align(size.width(), 128); if (m_texture && m_texture->size() == size) return; if (!size.isEmpty()) { m_texture.reset(new GLTexture(GL_RGBA8, size.width(), size.height())); m_texture->setYInverted(true); m_texture->setWrapMode(GL_CLAMP_TO_EDGE); m_texture->clear(); } else { m_texture.reset(); } } void SceneOpenGLDecorationRenderer::reparent(Deleted *deleted) { render(); Renderer::reparent(deleted); } } // namespace diff --git a/scene_opengl.h b/scene_opengl.h index 0b5505c29..0d0c8c047 100644 --- a/scene_opengl.h +++ b/scene_opengl.h @@ -1,668 +1,668 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2006 Lubos Lunak Copyright (C) 2009, 2010, 2011 Martin Gräßlin 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 . *********************************************************************/ #ifndef KWIN_SCENE_OPENGL_H #define KWIN_SCENE_OPENGL_H #include "scene.h" #include "shadow.h" #include "kwinglutils.h" #include "kwingltexture_p.h" #include "decorations/decorationrenderer.h" namespace KWin { class ColorCorrection; class LanczosFilter; class OpenGLBackend; class SyncManager; class SyncObject; -class SceneOpenGL +class KWIN_EXPORT SceneOpenGL : public Scene { Q_OBJECT public: class EffectFrame; class Texture; class TexturePrivate; class Window; virtual ~SceneOpenGL(); virtual bool initFailed() const; virtual bool hasPendingFlush() const; virtual qint64 paint(QRegion damage, ToplevelList windows); virtual Scene::EffectFrame *createEffectFrame(EffectFrameImpl *frame); virtual Shadow *createShadow(Toplevel *toplevel); virtual void screenGeometryChanged(const QSize &size); virtual OverlayWindow *overlayWindow(); virtual bool usesOverlayWindow() const; virtual bool blocksForRetrace() const; virtual bool syncsToVBlank() const; virtual bool makeOpenGLContextCurrent() override; virtual void doneOpenGLContextCurrent() override; Decoration::Renderer *createDecorationRenderer(Decoration::DecoratedClientImpl *impl) override; virtual void triggerFence() override; virtual QMatrix4x4 projectionMatrix() const = 0; void insertWait(); void idle(); bool debug() const { return m_debug; } void initDebugOutput(); /** * @brief Factory method to create a backend specific texture. * * @return :SceneOpenGL::Texture* **/ Texture *createTexture(); OpenGLBackend *backend() const { return m_backend; } /** * Copy a region of pixels from the current read to the current draw buffer */ static void copyPixels(const QRegion ®ion); static SceneOpenGL *createScene(QObject *parent); protected: SceneOpenGL(OpenGLBackend *backend, QObject *parent = nullptr); virtual void paintBackground(QRegion region); virtual void extendPaintRegion(QRegion ®ion, bool opaqueFullscreen); QMatrix4x4 transformation(int mask, const ScreenPaintData &data) const; virtual void paintDesktop(int desktop, int mask, const QRegion ®ion, ScreenPaintData &data); void handleGraphicsReset(GLenum status); virtual void doPaintBackground(const QVector &vertices) = 0; virtual void updateProjectionMatrix() = 0; Q_SIGNALS: void resetCompositing(); protected: bool init_ok; private: bool viewportLimitsMatched(const QSize &size) const; private: bool m_debug; OpenGLBackend *m_backend; SyncManager *m_syncManager; SyncObject *m_currentFence; }; class SceneOpenGL2 : public SceneOpenGL { Q_OBJECT public: explicit SceneOpenGL2(OpenGLBackend *backend, QObject *parent = nullptr); virtual ~SceneOpenGL2(); virtual CompositingType compositingType() const { return OpenGL2Compositing; } static bool supported(OpenGLBackend *backend); ColorCorrection *colorCorrection(); QMatrix4x4 projectionMatrix() const override { return m_projectionMatrix; } QMatrix4x4 screenProjectionMatrix() const override { return m_screenProjectionMatrix; } protected: virtual void paintSimpleScreen(int mask, QRegion region); virtual void paintGenericScreen(int mask, ScreenPaintData data); virtual void doPaintBackground(const QVector< float >& vertices); virtual Scene::Window *createWindow(Toplevel *t); virtual void finalDrawWindow(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data); virtual void updateProjectionMatrix() override; private Q_SLOTS: void slotColorCorrectedChanged(bool recreateShaders = true); void resetLanczosFilter(); private: void performPaintWindow(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data); QMatrix4x4 createProjectionMatrix() const; private: LanczosFilter *m_lanczosFilter; QScopedPointer m_colorCorrection; QMatrix4x4 m_projectionMatrix; QMatrix4x4 m_screenProjectionMatrix; GLuint vao; }; class SceneOpenGL::TexturePrivate : public GLTexturePrivate { public: virtual ~TexturePrivate(); virtual bool loadTexture(WindowPixmap *pixmap) = 0; virtual void updateTexture(WindowPixmap *pixmap); virtual OpenGLBackend *backend() = 0; protected: TexturePrivate(); private: Q_DISABLE_COPY(TexturePrivate) }; class SceneOpenGL::Texture : public GLTexture { public: Texture(OpenGLBackend *backend); virtual ~Texture(); Texture & operator = (const Texture& tex); void discard() override final; protected: bool load(WindowPixmap *pixmap); void updateFromPixmap(WindowPixmap *pixmap); Texture(TexturePrivate& dd); private: Q_DECLARE_PRIVATE(Texture) friend class OpenGLWindowPixmap; }; class SceneOpenGL::Window : public Scene::Window { public: virtual ~Window(); bool beginRenderWindow(int mask, const QRegion ®ion, WindowPaintData &data); virtual void performPaint(int mask, QRegion region, WindowPaintData data) = 0; void endRenderWindow(); bool bindTexture(); void setScene(SceneOpenGL *scene) { m_scene = scene; } protected: virtual WindowPixmap* createWindowPixmap(); Window(Toplevel* c); enum TextureType { Content, Decoration, Shadow }; QMatrix4x4 transformation(int mask, const WindowPaintData &data) const; GLTexture *getDecorationTexture() const; protected: SceneOpenGL *m_scene; bool m_hardwareClipping; }; class SceneOpenGL2Window : public SceneOpenGL::Window { public: enum Leaf { ShadowLeaf = 0, DecorationLeaf, ContentLeaf, PreviousContentLeaf, LeafCount }; struct LeafNode { LeafNode() : texture(0), firstVertex(0), vertexCount(0), opacity(1.0), hasAlpha(false), coordinateType(UnnormalizedCoordinates) { } GLTexture *texture; int firstVertex; int vertexCount; float opacity; bool hasAlpha; TextureCoordinateType coordinateType; }; explicit SceneOpenGL2Window(Toplevel *c); virtual ~SceneOpenGL2Window(); protected: QMatrix4x4 modelViewProjectionMatrix(int mask, const WindowPaintData &data) const; QVector4D modulate(float opacity, float brightness) const; void setBlendEnabled(bool enabled); void setupLeafNodes(LeafNode *nodes, const WindowQuadList *quads, const WindowPaintData &data); virtual void performPaint(int mask, QRegion region, WindowPaintData data); private: /** * Whether prepareStates enabled blending and restore states should disable again. **/ bool m_blendingEnabled; }; class OpenGLWindowPixmap : public WindowPixmap { public: explicit OpenGLWindowPixmap(Scene::Window *window, SceneOpenGL *scene); virtual ~OpenGLWindowPixmap(); SceneOpenGL::Texture *texture() const; bool bind(); protected: WindowPixmap *createChild(const QPointer &subSurface) override; private: explicit OpenGLWindowPixmap(const QPointer &subSurface, WindowPixmap *parent, SceneOpenGL *scene); QScopedPointer m_texture; SceneOpenGL *m_scene; }; class SceneOpenGL::EffectFrame : public Scene::EffectFrame { public: EffectFrame(EffectFrameImpl* frame, SceneOpenGL *scene); virtual ~EffectFrame(); virtual void free(); virtual void freeIconFrame(); virtual void freeTextFrame(); virtual void freeSelection(); virtual void render(QRegion region, double opacity, double frameOpacity); virtual void crossFadeIcon(); virtual void crossFadeText(); static void cleanup(); private: void updateTexture(); void updateTextTexture(); GLTexture *m_texture; GLTexture *m_textTexture; GLTexture *m_oldTextTexture; QPixmap *m_textPixmap; // need to keep the pixmap around to workaround some driver problems GLTexture *m_iconTexture; GLTexture *m_oldIconTexture; GLTexture *m_selectionTexture; GLVertexBuffer *m_unstyledVBO; SceneOpenGL *m_scene; static GLTexture* m_unstyledTexture; static QPixmap* m_unstyledPixmap; // need to keep the pixmap around to workaround some driver problems static void updateUnstyledTexture(); // Update OpenGL unstyled frame texture }; /** * @short OpenGL implementation of Shadow. * * This class extends Shadow by the Elements required for OpenGL rendering. * @author Martin Gräßlin **/ class SceneOpenGLShadow : public Shadow { public: explicit SceneOpenGLShadow(Toplevel *toplevel); virtual ~SceneOpenGLShadow(); GLTexture *shadowTexture() { return m_texture.data(); } protected: virtual void buildQuads(); virtual bool prepareBackend(); private: QSharedPointer m_texture; }; /** * @short Profiler to detect whether we have triple buffering * The strategy is to start setBlocksForRetrace(false) but assume blocking and have the system prove that assumption wrong **/ -class SwapProfiler +class KWIN_EXPORT SwapProfiler { public: SwapProfiler(); void init(); void begin(); /** * @return char being 'd' for double, 't' for triple (or more - but non-blocking) buffering and * 0 (NOT '0') otherwise, so you can act on "if (char result = SwapProfiler::end()) { fooBar(); } **/ char end(); private: QElapsedTimer m_timer; qint64 m_time; int m_counter; }; /** * @brief The OpenGLBackend creates and holds the OpenGL context and is responsible for Texture from Pixmap. * * The OpenGLBackend is an abstract base class used by the SceneOpenGL to abstract away the differences * between various OpenGL windowing systems such as GLX and EGL. * * A concrete implementation has to create and release the OpenGL context in a way so that the * SceneOpenGL does not have to care about it. * * In addition a major task for this class is to generate the SceneOpenGL::TexturePrivate which is * able to perform the texture from pixmap operation in the given backend. * * @author Martin Gräßlin **/ class KWIN_EXPORT OpenGLBackend { public: OpenGLBackend(); virtual ~OpenGLBackend(); virtual void init() = 0; /** * @return Time passes since start of rendering current frame. * @see startRenderTimer **/ qint64 renderTime() { return m_renderTimer.nsecsElapsed(); } virtual void screenGeometryChanged(const QSize &size) = 0; virtual SceneOpenGL::TexturePrivate *createBackendTexture(SceneOpenGL::Texture *texture) = 0; /** * @brief Backend specific code to prepare the rendering of a frame including flushing the * previously rendered frame to the screen if the backend works this way. * * @return A region that if not empty will be repainted in addition to the damaged region **/ virtual QRegion prepareRenderingFrame() = 0; /** * @brief Backend specific code to handle the end of rendering a frame. * * @param renderedRegion The possibly larger region that has been rendered * @param damagedRegion The damaged region that should be posted **/ virtual void endRenderingFrame(const QRegion &damage, const QRegion &damagedRegion) = 0; virtual void endRenderingFrameForScreen(int screenId, const QRegion &damage, const QRegion &damagedRegion); virtual bool makeCurrent() = 0; virtual void doneCurrent() = 0; virtual bool usesOverlayWindow() const = 0; /** * Whether the rendering needs to be split per screen. * Default implementation returns @c false. **/ virtual bool perScreenRendering() const; virtual QRegion prepareRenderingForScreen(int screenId); /** * @brief Compositor is going into idle mode, flushes any pending paints. **/ void idle(); /** * @return bool Whether the scene needs to flush a frame. **/ bool hasPendingFlush() const { return !m_lastDamage.isEmpty(); } /** * @brief Returns the OverlayWindow used by the backend. * * A backend does not have to use an OverlayWindow, this is mostly for the X world. * In case the backend does not use an OverlayWindow it is allowed to return @c null. * It's the task of the caller to check whether it is @c null. * * @return :OverlayWindow* **/ virtual OverlayWindow *overlayWindow(); /** * @brief Whether the creation of the Backend failed. * * The SceneOpenGL should test whether the Backend got constructed correctly. If this method * returns @c true, the SceneOpenGL should not try to start the rendering. * * @return bool @c true if the creation of the Backend failed, @c false otherwise. **/ bool isFailed() const { return m_failed; } /** * @brief Whether the Backend provides VSync. * * Currently only the GLX backend can provide VSync. * * @return bool @c true if VSync support is available, @c false otherwise **/ bool syncsToVBlank() const { return m_syncsToVBlank; } /** * @brief Whether VSync blocks execution until the screen is in the retrace * * Case for waitVideoSync and non triple buffering buffer swaps * **/ bool blocksForRetrace() const { return m_blocksForRetrace; } /** * @brief Whether the backend uses direct rendering. * * Some OpenGLScene modes require direct rendering. E.g. the OpenGL 2 should not be used * if direct rendering is not supported by the Scene. * * @return bool @c true if the GL context is direct, @c false if indirect **/ bool isDirectRendering() const { return m_directRendering; } bool supportsBufferAge() const { return m_haveBufferAge; } /** * @returns whether the context is surfaceless **/ bool isSurfaceLessContext() const { return m_surfaceLessContext; } /** * Returns the damage that has accumulated since a buffer of the given age was presented. */ QRegion accumulatedDamageHistory(int bufferAge) const; /** * Saves the given region to damage history. */ void addToDamageHistory(const QRegion ®ion); protected: /** * @brief Backend specific flushing of frame to screen. **/ virtual void present() = 0; /** * @brief Sets the backend initialization to failed. * * This method should be called by the concrete subclass in case the initialization failed. * The given @p reason is logged as a warning. * * @param reason The reason why the initialization failed. **/ void setFailed(const QString &reason); /** * @brief Sets whether the backend provides VSync. * * Should be called by the concrete subclass once it is determined whether VSync is supported. * If the subclass does not call this method, the backend defaults to @c false. * @param enabled @c true if VSync support available, @c false otherwise. **/ void setSyncsToVBlank(bool enabled) { m_syncsToVBlank = enabled; } /** * @brief Sets whether the VSync iplementation blocks * * Should be called by the concrete subclass once it is determined how VSync works. * If the subclass does not call this method, the backend defaults to @c false. * @param enabled @c true if VSync blocks, @c false otherwise. **/ void setBlocksForRetrace(bool enabled) { m_blocksForRetrace = enabled; } /** * @brief Sets whether the OpenGL context is direct. * * Should be called by the concrete subclass once it is determined whether the OpenGL context is * direct or indirect. * If the subclass does not call this method, the backend defaults to @c false. * * @param direct @c true if the OpenGL context is direct, @c false if indirect **/ void setIsDirectRendering(bool direct) { m_directRendering = direct; } void setSupportsBufferAge(bool value) { m_haveBufferAge = value; } /** * @return const QRegion& Damage of previously rendered frame **/ const QRegion &lastDamage() const { return m_lastDamage; } void setLastDamage(const QRegion &damage) { m_lastDamage = damage; } /** * @brief Starts the timer for how long it takes to render the frame. * * @see renderTime **/ void startRenderTimer() { m_renderTimer.start(); } /** * @param set whether the context is surface less **/ void setSurfaceLessContext(bool set) { m_surfaceLessContext = set; } SwapProfiler m_swapProfiler; private: /** * @brief Whether VSync is available and used, defaults to @c false. **/ bool m_syncsToVBlank; /** * @brief Whether present() will block execution until the next vertical retrace @c false. **/ bool m_blocksForRetrace; /** * @brief Whether direct rendering is used, defaults to @c false. **/ bool m_directRendering; /** * @brief Whether the backend supports GLX_EXT_buffer_age / EGL_EXT_buffer_age. */ bool m_haveBufferAge; /** * @brief Whether the initialization failed, of course default to @c false. **/ bool m_failed; /** * @brief Damaged region of previously rendered frame. **/ QRegion m_lastDamage; /** * @brief The damage history for the past 10 frames. */ QList m_damageHistory; /** * @brief Timer to measure how long a frame renders. **/ QElapsedTimer m_renderTimer; bool m_surfaceLessContext = false; }; class SceneOpenGLDecorationRenderer : public Decoration::Renderer { Q_OBJECT public: enum class DecorationPart : int { Left, Top, Right, Bottom, Count }; explicit SceneOpenGLDecorationRenderer(Decoration::DecoratedClientImpl *client); virtual ~SceneOpenGLDecorationRenderer(); void render() override; void reparent(Deleted *deleted) override; GLTexture *texture() { return m_texture.data(); } GLTexture *texture() const { return m_texture.data(); } private: void resizeTexture(); QScopedPointer m_texture; }; inline bool SceneOpenGL::hasPendingFlush() const { return m_backend->hasPendingFlush(); } inline bool SceneOpenGL::usesOverlayWindow() const { return m_backend->usesOverlayWindow(); } inline SceneOpenGL::Texture* OpenGLWindowPixmap::texture() const { return m_texture.data(); } } // namespace #endif