/******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2015 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 3 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 "egl_hwcomposer_backend.h" #include "hwcomposer_backend.h" #include "logging.h" #include "screens_hwcomposer.h" #include "composite.h" #include "wayland_server.h" // KWayland #include #include #include // hybris/android #include #include #include #include #include #include // linux #include // based on test_hwcomposer.c from libhybris project (Apache 2 licensed) namespace KWin { HwcomposerBackend::HwcomposerBackend(QObject *parent) : AbstractBackend(parent) { handleOutputs(); } HwcomposerBackend::~HwcomposerBackend() { if (m_device) { hwc_close_1(m_device); } if (m_inputListener) { android_input_stack_stop(); android_input_stack_shutdown(); delete m_inputListener; } } static QPointF eventPosition(Event *event) { return QPointF(event->details.motion.pointer_coordinates[0].x, event->details.motion.pointer_coordinates[0].y); } static qint32 translateKey(qint32 key) { static const QHash s_translation = { {ISCL_KEYCODE_UNKNOWN, KEY_RESERVED}, {ISCL_KEYCODE_SOFT_LEFT, KEY_RESERVED}, {ISCL_KEYCODE_SOFT_RIGHT, KEY_RESERVED}, {ISCL_KEYCODE_HOME, KEY_HOME}, {ISCL_KEYCODE_BACK, KEY_BACK}, {ISCL_KEYCODE_CALL, KEY_RESERVED}, {ISCL_KEYCODE_ENDCALL, KEY_RESERVED}, {ISCL_KEYCODE_0, KEY_0}, {ISCL_KEYCODE_1, KEY_1}, {ISCL_KEYCODE_2, KEY_2}, {ISCL_KEYCODE_3, KEY_3}, {ISCL_KEYCODE_4, KEY_4}, {ISCL_KEYCODE_5, KEY_5}, {ISCL_KEYCODE_6, KEY_6}, {ISCL_KEYCODE_7, KEY_7}, {ISCL_KEYCODE_8, KEY_8}, {ISCL_KEYCODE_9, KEY_9}, {ISCL_KEYCODE_STAR, KEY_NUMERIC_STAR}, {ISCL_KEYCODE_POUND, KEY_NUMERIC_POUND}, {ISCL_KEYCODE_DPAD_UP, BTN_DPAD_UP}, {ISCL_KEYCODE_DPAD_DOWN, BTN_DPAD_DOWN}, {ISCL_KEYCODE_DPAD_LEFT, BTN_DPAD_LEFT}, {ISCL_KEYCODE_DPAD_RIGHT, BTN_DPAD_RIGHT}, {ISCL_KEYCODE_DPAD_CENTER, KEY_RESERVED}, {ISCL_KEYCODE_VOLUME_UP, KEY_VOLUMEUP}, {ISCL_KEYCODE_VOLUME_DOWN, KEY_VOLUMEDOWN}, {ISCL_KEYCODE_POWER, KEY_POWER}, {ISCL_KEYCODE_CAMERA, KEY_CAMERA}, {ISCL_KEYCODE_CLEAR, KEY_CLEAR}, {ISCL_KEYCODE_A, KEY_A}, {ISCL_KEYCODE_B, KEY_B}, {ISCL_KEYCODE_C, KEY_C}, {ISCL_KEYCODE_D, KEY_D}, {ISCL_KEYCODE_E, KEY_E}, {ISCL_KEYCODE_F, KEY_F}, {ISCL_KEYCODE_G, KEY_G}, {ISCL_KEYCODE_H, KEY_H}, {ISCL_KEYCODE_I, KEY_I}, {ISCL_KEYCODE_J, KEY_J}, {ISCL_KEYCODE_K, KEY_K}, {ISCL_KEYCODE_L, KEY_L}, {ISCL_KEYCODE_M, KEY_M}, {ISCL_KEYCODE_N, KEY_N}, {ISCL_KEYCODE_O, KEY_O}, {ISCL_KEYCODE_P, KEY_P}, {ISCL_KEYCODE_Q, KEY_Q}, {ISCL_KEYCODE_R, KEY_R}, {ISCL_KEYCODE_S, KEY_S}, {ISCL_KEYCODE_T, KEY_T}, {ISCL_KEYCODE_U, KEY_U}, {ISCL_KEYCODE_V, KEY_V}, {ISCL_KEYCODE_W, KEY_W}, {ISCL_KEYCODE_X, KEY_X}, {ISCL_KEYCODE_Y, KEY_Y}, {ISCL_KEYCODE_Z, KEY_Z}, {ISCL_KEYCODE_COMMA, KEY_COMMA}, {ISCL_KEYCODE_PERIOD, KEY_DOT}, {ISCL_KEYCODE_ALT_LEFT, KEY_LEFTALT}, {ISCL_KEYCODE_ALT_RIGHT, KEY_RIGHTALT}, {ISCL_KEYCODE_SHIFT_LEFT, KEY_LEFTSHIFT}, {ISCL_KEYCODE_SHIFT_RIGHT, KEY_RIGHTSHIFT}, {ISCL_KEYCODE_TAB, KEY_TAB}, {ISCL_KEYCODE_SPACE, KEY_SPACE}, {ISCL_KEYCODE_SYM, KEY_RESERVED}, {ISCL_KEYCODE_EXPLORER, KEY_RESERVED}, {ISCL_KEYCODE_ENVELOPE, KEY_EMAIL}, {ISCL_KEYCODE_ENTER, KEY_ENTER}, {ISCL_KEYCODE_DEL, KEY_DELETE}, {ISCL_KEYCODE_GRAVE, KEY_GRAVE}, {ISCL_KEYCODE_MINUS, KEY_MINUS}, {ISCL_KEYCODE_EQUALS, KEY_EQUAL}, {ISCL_KEYCODE_LEFT_BRACKET, KEY_LEFTBRACE}, {ISCL_KEYCODE_RIGHT_BRACKET, KEY_RIGHTBRACE}, {ISCL_KEYCODE_BACKSLASH, KEY_BACKSLASH}, {ISCL_KEYCODE_SEMICOLON, KEY_SEMICOLON}, {ISCL_KEYCODE_APOSTROPHE, KEY_APOSTROPHE}, {ISCL_KEYCODE_SLASH, KEY_SLASH}, {ISCL_KEYCODE_AT, KEY_RESERVED}, {ISCL_KEYCODE_NUM, KEY_RESERVED}, {ISCL_KEYCODE_HEADSETHOOK, KEY_RESERVED}, {ISCL_KEYCODE_FOCUS, KEY_CAMERA_FOCUS}, {ISCL_KEYCODE_PLUS, KEY_RESERVED}, {ISCL_KEYCODE_MENU, KEY_MENU}, {ISCL_KEYCODE_NOTIFICATION, KEY_RESERVED}, {ISCL_KEYCODE_SEARCH, KEY_SEARCH}, {ISCL_KEYCODE_MEDIA_PLAY_PAUSE, KEY_PLAYPAUSE}, {ISCL_KEYCODE_MEDIA_STOP, KEY_STOPCD}, {ISCL_KEYCODE_MEDIA_NEXT, KEY_NEXTSONG}, {ISCL_KEYCODE_MEDIA_PREVIOUS, KEY_PREVIOUSSONG}, {ISCL_KEYCODE_MEDIA_REWIND, KEY_REWIND}, {ISCL_KEYCODE_MEDIA_FAST_FORWARD, KEY_FASTFORWARD}, {ISCL_KEYCODE_MUTE, KEY_MUTE}, {ISCL_KEYCODE_PAGE_UP, KEY_PAGEUP}, {ISCL_KEYCODE_PAGE_DOWN, KEY_PAGEDOWN}, {ISCL_KEYCODE_PICTSYMBOLS, KEY_RESERVED}, {ISCL_KEYCODE_SWITCH_CHARSET, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_A, BTN_A}, {ISCL_KEYCODE_BUTTON_B, BTN_B}, {ISCL_KEYCODE_BUTTON_C, BTN_C}, {ISCL_KEYCODE_BUTTON_X, BTN_X}, {ISCL_KEYCODE_BUTTON_Y, BTN_Y}, {ISCL_KEYCODE_BUTTON_Z, BTN_Z}, {ISCL_KEYCODE_BUTTON_L1, BTN_TL}, {ISCL_KEYCODE_BUTTON_R1, BTN_TR}, {ISCL_KEYCODE_BUTTON_L2, BTN_TL2}, {ISCL_KEYCODE_BUTTON_R2, BTN_TR2}, {ISCL_KEYCODE_BUTTON_THUMBL, BTN_THUMBL}, {ISCL_KEYCODE_BUTTON_THUMBR, BTN_THUMBR}, {ISCL_KEYCODE_BUTTON_START, BTN_START}, {ISCL_KEYCODE_BUTTON_SELECT, BTN_SELECT}, {ISCL_KEYCODE_BUTTON_MODE, BTN_MODE}, {ISCL_KEYCODE_ESCAPE, KEY_ESC}, {ISCL_KEYCODE_FORWARD_DEL, KEY_RESERVED}, {ISCL_KEYCODE_CTRL_LEFT, KEY_LEFTCTRL}, {ISCL_KEYCODE_CTRL_RIGHT, KEY_RIGHTCTRL}, {ISCL_KEYCODE_CAPS_LOCK, KEY_CAPSLOCK}, {ISCL_KEYCODE_SCROLL_LOCK, KEY_SCROLLLOCK}, {ISCL_KEYCODE_META_LEFT, KEY_LEFTMETA}, {ISCL_KEYCODE_META_RIGHT, KEY_RIGHTMETA}, {ISCL_KEYCODE_FUNCTION, KEY_RESERVED}, {ISCL_KEYCODE_SYSRQ, KEY_SYSRQ}, {ISCL_KEYCODE_BREAK, KEY_RESERVED}, {ISCL_KEYCODE_MOVE_HOME, KEY_HOME}, {ISCL_KEYCODE_MOVE_END, KEY_END}, {ISCL_KEYCODE_INSERT, KEY_INSERT}, {ISCL_KEYCODE_FORWARD, KEY_RESERVED}, {ISCL_KEYCODE_MEDIA_PLAY, KEY_PLAYCD}, {ISCL_KEYCODE_MEDIA_PAUSE, KEY_PAUSECD}, {ISCL_KEYCODE_MEDIA_CLOSE, KEY_CLOSECD}, {ISCL_KEYCODE_MEDIA_EJECT, KEY_EJECTCD}, {ISCL_KEYCODE_MEDIA_RECORD, KEY_RECORD}, {ISCL_KEYCODE_F1, KEY_F1}, {ISCL_KEYCODE_F2, KEY_F2}, {ISCL_KEYCODE_F3, KEY_F3}, {ISCL_KEYCODE_F4, KEY_F4}, {ISCL_KEYCODE_F5, KEY_F5}, {ISCL_KEYCODE_F6, KEY_F6}, {ISCL_KEYCODE_F7, KEY_F7}, {ISCL_KEYCODE_F8, KEY_F8}, {ISCL_KEYCODE_F9, KEY_F9}, {ISCL_KEYCODE_F10, KEY_F10}, {ISCL_KEYCODE_F11, KEY_F11}, {ISCL_KEYCODE_F12, KEY_F12}, {ISCL_KEYCODE_NUM_LOCK, KEY_NUMLOCK}, {ISCL_KEYCODE_NUMPAD_0, KEY_KP0}, {ISCL_KEYCODE_NUMPAD_1, KEY_KP1}, {ISCL_KEYCODE_NUMPAD_2, KEY_KP2}, {ISCL_KEYCODE_NUMPAD_3, KEY_KP3}, {ISCL_KEYCODE_NUMPAD_4, KEY_KP4}, {ISCL_KEYCODE_NUMPAD_5, KEY_KP5}, {ISCL_KEYCODE_NUMPAD_6, KEY_KP6}, {ISCL_KEYCODE_NUMPAD_7, KEY_KP7}, {ISCL_KEYCODE_NUMPAD_8, KEY_KP8}, {ISCL_KEYCODE_NUMPAD_9, KEY_KP9}, {ISCL_KEYCODE_NUMPAD_DIVIDE, KEY_KPSLASH}, {ISCL_KEYCODE_NUMPAD_MULTIPLY, KEY_KPASTERISK}, {ISCL_KEYCODE_NUMPAD_SUBTRACT, KEY_KPMINUS}, {ISCL_KEYCODE_NUMPAD_ADD, KEY_KPPLUS}, {ISCL_KEYCODE_NUMPAD_DOT, KEY_KPDOT}, {ISCL_KEYCODE_NUMPAD_COMMA, KEY_KPCOMMA}, {ISCL_KEYCODE_NUMPAD_ENTER, KEY_KPENTER}, {ISCL_KEYCODE_NUMPAD_EQUALS, KEY_KPEQUAL}, {ISCL_KEYCODE_NUMPAD_LEFT_PAREN, KEY_KPLEFTPAREN}, {ISCL_KEYCODE_NUMPAD_RIGHT_PAREN, KEY_KPRIGHTPAREN}, {ISCL_KEYCODE_VOLUME_MUTE, KEY_MUTE}, {ISCL_KEYCODE_INFO, KEY_RESERVED}, {ISCL_KEYCODE_CHANNEL_UP, KEY_CHANNELUP}, {ISCL_KEYCODE_CHANNEL_DOWN, KEY_CHANNELDOWN}, {ISCL_KEYCODE_ZOOM_IN, KEY_ZOOMIN}, {ISCL_KEYCODE_ZOOM_OUT, KEY_ZOOMOUT}, {ISCL_KEYCODE_TV, KEY_RESERVED}, {ISCL_KEYCODE_WINDOW, KEY_RESERVED}, {ISCL_KEYCODE_GUIDE, KEY_RESERVED}, {ISCL_KEYCODE_DVR, KEY_RESERVED}, {ISCL_KEYCODE_BOOKMARK, KEY_RESERVED}, {ISCL_KEYCODE_CAPTIONS, KEY_RESERVED}, {ISCL_KEYCODE_SETTINGS, KEY_RESERVED}, {ISCL_KEYCODE_TV_POWER, KEY_RESERVED}, {ISCL_KEYCODE_TV_INPUT, KEY_RESERVED}, {ISCL_KEYCODE_STB_POWER, KEY_RESERVED}, {ISCL_KEYCODE_STB_INPUT, KEY_RESERVED}, {ISCL_KEYCODE_AVR_POWER, KEY_RESERVED}, {ISCL_KEYCODE_AVR_INPUT, KEY_RESERVED}, {ISCL_KEYCODE_PROG_RED, KEY_RED}, {ISCL_KEYCODE_PROG_GREEN, KEY_GREEN}, {ISCL_KEYCODE_PROG_YELLOW, KEY_YELLOW}, {ISCL_KEYCODE_PROG_BLUE, KEY_BLUE}, {ISCL_KEYCODE_APP_SWITCH, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_1, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_2, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_3, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_4, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_5, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_6, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_7, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_8, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_9, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_10, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_11, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_12, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_13, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_14, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_15, KEY_RESERVED}, {ISCL_KEYCODE_BUTTON_16, KEY_RESERVED}, {ISCL_KEYCODE_LANGUAGE_SWITCH, KEY_RESERVED}, {ISCL_KEYCODE_MANNER_MODE, KEY_RESERVED}, {ISCL_KEYCODE_3D_MODE, KEY_RESERVED}, {ISCL_KEYCODE_CONTACTS, KEY_ADDRESSBOOK}, {ISCL_KEYCODE_CALENDAR, KEY_CALENDAR}, {ISCL_KEYCODE_MUSIC, KEY_MEDIA}, {ISCL_KEYCODE_CALCULATOR, KEY_CALC} }; auto it = s_translation.find(key); if (it == s_translation.end()) { return KEY_RESERVED; } return it.value(); } void HwcomposerBackend::inputEvent(Event *event, void *context) { HwcomposerBackend *backend = reinterpret_cast(context); switch (event->type) { case KEY_EVENT_TYPE: switch (event->action) { case ISCL_KEY_EVENT_ACTION_DOWN: { const qint32 key = translateKey(event->details.key.key_code); if (key == KEY_RESERVED) { break; } if (key == KEY_POWER) { // this key is handled internally // TODO: trigger timer to decide what should be done: short press/release (un)blank screen // long press should emit the normal key pressed break; } backend->keyboardKeyPressed(key, event->details.key.event_time); break; } case ISCL_KEY_EVENT_ACTION_UP: { const qint32 key = translateKey(event->details.key.key_code); if (key == KEY_RESERVED) { break; } if (key == KEY_POWER) { // this key is handled internally QMetaObject::invokeMethod(backend, "toggleBlankOutput", Qt::QueuedConnection); break; } backend->keyboardKeyReleased(key, event->details.key.event_time); break; } case ISCL_KEY_EVENT_ACTION_MULTIPLE: // TODO: implement default: break; } break; case MOTION_EVENT_TYPE: { const uint buttonIndex = (event->action & ISCL_MOTION_EVENT_ACTION_POINTER_INDEX_MASK) >> ISCL_MOTION_EVENT_ACTION_POINTER_INDEX_SHIFT; switch (event->action & ISCL_MOTION_EVENT_ACTION_MASK) { case ISCL_MOTION_EVENT_ACTION_DOWN: case ISCL_MOTION_EVENT_ACTION_POINTER_DOWN: backend->touchDown(buttonIndex, eventPosition(event), event->details.motion.event_time); break; case ISCL_MOTION_EVENT_ACTION_UP: case ISCL_MOTION_EVENT_ACTION_POINTER_UP: // first update position - up events can contain additional motion events backend->touchMotion(0, eventPosition(event), event->details.motion.event_time); backend->touchFrame(); backend->touchUp(buttonIndex, event->details.motion.event_time); break; case ISCL_MOTION_EVENT_ACTION_MOVE: // it's always for the first index, other touch points seem not to be provided backend->touchMotion(0, eventPosition(event), event->details.motion.event_time); backend->touchFrame(); break; case ISCL_MOTION_EVENT_ACTION_CANCEL: backend->touchCancel(); break; default: // TODO: implement break; } break; } case HW_SWITCH_EVENT_TYPE: qCDebug(KWIN_HWCOMPOSER) << "HW switch event:"; break; } } static KWayland::Server::OutputInterface *createOutput(hwc_composer_device_1_t *device) { uint32_t configs[5]; size_t numConfigs = 5; if (device->getDisplayConfigs(device, 0, configs, &numConfigs) != 0) { qCWarning(KWIN_HWCOMPOSER) << "Failed to get hwcomposer display configurations"; return nullptr; } int32_t attr_values[4]; uint32_t attributes[] = { HWC_DISPLAY_WIDTH, HWC_DISPLAY_HEIGHT, HWC_DISPLAY_DPI_X, HWC_DISPLAY_DPI_Y, HWC_DISPLAY_NO_ATTRIBUTE }; device->getDisplayAttributes(device, 0, configs[0], attributes, attr_values); QSize pixel(attr_values[0], attr_values[1]); if (pixel.isEmpty()) { return nullptr; } using namespace KWayland::Server; OutputInterface *o = waylandServer()->display()->createOutput(waylandServer()->display()); // TODO: get refresh rate o->addMode(pixel, OutputInterface::ModeFlag::Current | OutputInterface::ModeFlag::Preferred); if (attr_values[2] != 0 && attr_values[3] != 0) { static const qreal factor = 25.4; o->setPhysicalSize(QSizeF(qreal(pixel.width() * 1000) / qreal(attr_values[2]) * factor, qreal(pixel.height() * 1000) / qreal(attr_values[3]) * factor).toSize()); } else { // couldn't read physical size, assume 96 dpi o->setPhysicalSize(pixel / 3.8); } o->create(); return o; } void HwcomposerBackend::init() { hw_module_t *hwcModule = nullptr; if (hw_get_module(HWC_HARDWARE_MODULE_ID, (const hw_module_t **)&hwcModule) != 0) { qCWarning(KWIN_HWCOMPOSER) << "Failed to get hwcomposer module"; emit initFailed(); return; } hwc_composer_device_1_t *hwcDevice = nullptr; if (hwc_open_1(hwcModule, &hwcDevice) != 0) { qCWarning(KWIN_HWCOMPOSER) << "Failed to open hwcomposer device"; emit initFailed(); return; } // unblank, setPowerMode? m_device = hwcDevice; toggleBlankOutput(); // get display configuration auto output = createOutput(hwcDevice); if (!output) { emit initFailed(); return; } m_displaySize = output->pixelSize(); qCDebug(KWIN_HWCOMPOSER) << "Display size:" << m_displaySize; initInput(); emit screensQueried(); setReady(true); } void HwcomposerBackend::initInput() { Q_ASSERT(!m_inputListener); m_inputListener = new AndroidEventListener; m_inputListener->on_new_event = inputEvent; m_inputListener->context = this; struct InputStackConfiguration config = { true, 10000, m_displaySize.width(), m_displaySize.height() }; android_input_stack_initialize(m_inputListener, &config); android_input_stack_start(); // we don't know what is really supported, but there is touch // and kind of keyboard waylandServer()->seat()->setHasPointer(false); waylandServer()->seat()->setHasKeyboard(true); waylandServer()->seat()->setHasTouch(true); } void HwcomposerBackend::toggleBlankOutput() { if (!m_device) { return; } m_outputBlank = !m_outputBlank; m_device->blank(m_device, 0, m_outputBlank ? 1 : 0); // enable/disable compositor repainting when blanked if (Compositor *compositor = Compositor::self()) { if (m_outputBlank) { compositor->aboutToSwapBuffers(); } else { compositor->bufferSwapComplete(); compositor->addRepaintFull(); } } } HwcomposerWindow *HwcomposerBackend::createSurface() { return new HwcomposerWindow(this); } Screens *HwcomposerBackend::createScreens(QObject *parent) { return new HwcomposerScreens(this, parent); } OpenGLBackend *HwcomposerBackend::createOpenGLBackend() { return new EglHwcomposerBackend(this); } static void initLayer(hwc_layer_1_t *layer, const hwc_rect_t &rect) { memset(layer, 0, sizeof(hwc_layer_1_t)); layer->compositionType = HWC_FRAMEBUFFER; layer->hints = 0; layer->flags = 0; layer->handle = 0; layer->transform = 0; layer->blending = HWC_BLENDING_NONE; layer->sourceCrop = rect; layer->displayFrame = rect; layer->visibleRegionScreen.numRects = 1; layer->visibleRegionScreen.rects = &layer->displayFrame; layer->acquireFenceFd = -1; layer->releaseFenceFd = -1; } HwcomposerWindow::HwcomposerWindow(HwcomposerBackend *backend) : HWComposerNativeWindow(backend->size().width(), backend->size().height(), HAL_PIXEL_FORMAT_RGBA_8888) , m_backend(backend) { size_t size = sizeof(hwc_display_contents_1_t) + 2 * sizeof(hwc_layer_1_t); hwc_display_contents_1_t *list = (hwc_display_contents_1_t*)malloc(size); m_list = (hwc_display_contents_1_t**)malloc(HWC_NUM_DISPLAY_TYPES * sizeof(hwc_display_contents_1_t *)); for (int i = 0; i < HWC_NUM_DISPLAY_TYPES; ++i) { m_list[i] = list; } const hwc_rect_t rect = { 0, 0, m_backend->size().width(), m_backend->size().height() }; initLayer(&list->hwLayers[0], rect); initLayer(&list->hwLayers[1], rect); list->retireFenceFd = -1; list->flags = HWC_GEOMETRY_CHANGED; list->numHwLayers = 2; } HwcomposerWindow::~HwcomposerWindow() { // TODO: cleanup } static void syncWait(int fd) { if (fd == -1) { return; } sync_wait(fd, -1); close(fd); } void HwcomposerWindow::present() { HWComposerNativeWindowBuffer *front; lockFrontBuffer(&front); m_list[0]->hwLayers[1].handle = front->handle; m_list[0]->hwLayers[0].handle = NULL; m_list[0]->hwLayers[0].flags = HWC_SKIP_LAYER; int oldretire = m_list[0]->retireFenceFd; int oldrelease = m_list[0]->hwLayers[1].releaseFenceFd; int oldrelease2 = m_list[0]->hwLayers[0].releaseFenceFd; hwc_composer_device_1_t *device = m_backend->device(); if (device->prepare(device, HWC_NUM_DISPLAY_TYPES, m_list) != 0) { qCWarning(KWIN_HWCOMPOSER) << "Error preparing hwcomposer for frame"; } if (device->set(device, HWC_NUM_DISPLAY_TYPES, m_list) != 0) { qCWarning(KWIN_HWCOMPOSER) << "Error setting device for frame"; } unlockFrontBuffer(front); syncWait(oldrelease); syncWait(oldrelease2); syncWait(oldretire); } }