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Diffstat (limited to 'src/plugins/platforms/mirclient/qmirclientscreen.cpp')
| -rw-r--r-- | src/plugins/platforms/mirclient/qmirclientscreen.cpp | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/src/plugins/platforms/mirclient/qmirclientscreen.cpp b/src/plugins/platforms/mirclient/qmirclientscreen.cpp new file mode 100644 index 0000000000..5c4b1cd0d6 --- /dev/null +++ b/src/plugins/platforms/mirclient/qmirclientscreen.cpp @@ -0,0 +1,296 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Canonical, Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPLv3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or later as published by the Free +** Software Foundation and appearing in the file LICENSE.GPL included in +** the packaging of this file. Please review the following information to +** ensure the GNU General Public License version 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <mir_toolkit/mir_client_library.h> + +// Qt +#include <QCoreApplication> +#include <QtCore/qmath.h> +#include <QScreen> +#include <QThread> +#include <qpa/qwindowsysteminterface.h> +#include <QtPlatformSupport/private/qeglconvenience_p.h> + +// local +#include "qmirclientscreen.h" +#include "qmirclientlogging.h" +#include "qmirclientorientationchangeevent_p.h" + +#include "memory" + +static const int kSwapInterval = 1; + +#if !defined(QT_NO_DEBUG) + +static const char *orientationToStr(Qt::ScreenOrientation orientation) { + switch (orientation) { + case Qt::PrimaryOrientation: + return "primary"; + case Qt::PortraitOrientation: + return "portrait"; + case Qt::LandscapeOrientation: + return "landscape"; + case Qt::InvertedPortraitOrientation: + return "inverted portrait"; + case Qt::InvertedLandscapeOrientation: + return "inverted landscape"; + default: + return "INVALID!"; + } +} + +static void printEglConfig(EGLDisplay display, EGLConfig config) { + DASSERT(display != EGL_NO_DISPLAY); + DASSERT(config != nullptr); + static const struct { const EGLint attrib; const char* name; } kAttribs[] = { + { EGL_BUFFER_SIZE, "EGL_BUFFER_SIZE" }, + { EGL_ALPHA_SIZE, "EGL_ALPHA_SIZE" }, + { EGL_BLUE_SIZE, "EGL_BLUE_SIZE" }, + { EGL_GREEN_SIZE, "EGL_GREEN_SIZE" }, + { EGL_RED_SIZE, "EGL_RED_SIZE" }, + { EGL_DEPTH_SIZE, "EGL_DEPTH_SIZE" }, + { EGL_STENCIL_SIZE, "EGL_STENCIL_SIZE" }, + { EGL_CONFIG_CAVEAT, "EGL_CONFIG_CAVEAT" }, + { EGL_CONFIG_ID, "EGL_CONFIG_ID" }, + { EGL_LEVEL, "EGL_LEVEL" }, + { EGL_MAX_PBUFFER_HEIGHT, "EGL_MAX_PBUFFER_HEIGHT" }, + { EGL_MAX_PBUFFER_PIXELS, "EGL_MAX_PBUFFER_PIXELS" }, + { EGL_MAX_PBUFFER_WIDTH, "EGL_MAX_PBUFFER_WIDTH" }, + { EGL_NATIVE_RENDERABLE, "EGL_NATIVE_RENDERABLE" }, + { EGL_NATIVE_VISUAL_ID, "EGL_NATIVE_VISUAL_ID" }, + { EGL_NATIVE_VISUAL_TYPE, "EGL_NATIVE_VISUAL_TYPE" }, + { EGL_SAMPLES, "EGL_SAMPLES" }, + { EGL_SAMPLE_BUFFERS, "EGL_SAMPLE_BUFFERS" }, + { EGL_SURFACE_TYPE, "EGL_SURFACE_TYPE" }, + { EGL_TRANSPARENT_TYPE, "EGL_TRANSPARENT_TYPE" }, + { EGL_TRANSPARENT_BLUE_VALUE, "EGL_TRANSPARENT_BLUE_VALUE" }, + { EGL_TRANSPARENT_GREEN_VALUE, "EGL_TRANSPARENT_GREEN_VALUE" }, + { EGL_TRANSPARENT_RED_VALUE, "EGL_TRANSPARENT_RED_VALUE" }, + { EGL_BIND_TO_TEXTURE_RGB, "EGL_BIND_TO_TEXTURE_RGB" }, + { EGL_BIND_TO_TEXTURE_RGBA, "EGL_BIND_TO_TEXTURE_RGBA" }, + { EGL_MIN_SWAP_INTERVAL, "EGL_MIN_SWAP_INTERVAL" }, + { EGL_MAX_SWAP_INTERVAL, "EGL_MAX_SWAP_INTERVAL" }, + { -1, NULL } + }; + const char* string = eglQueryString(display, EGL_VENDOR); + LOG("EGL vendor: %s", string); + string = eglQueryString(display, EGL_VERSION); + LOG("EGL version: %s", string); + string = eglQueryString(display, EGL_EXTENSIONS); + LOG("EGL extensions: %s", string); + LOG("EGL configuration attibutes:"); + for (int index = 0; kAttribs[index].attrib != -1; index++) { + EGLint value; + if (eglGetConfigAttrib(display, config, kAttribs[index].attrib, &value)) + LOG(" %s: %d", kAttribs[index].name, static_cast<int>(value)); + } +} +#endif + + +const QEvent::Type OrientationChangeEvent::mType = + static_cast<QEvent::Type>(QEvent::registerEventType()); + +static const MirDisplayOutput *find_active_output( + const MirDisplayConfiguration *conf) +{ + const MirDisplayOutput *output = NULL; + for (uint32_t d = 0; d < conf->num_outputs; d++) + { + const MirDisplayOutput *out = conf->outputs + d; + + if (out->used && + out->connected && + out->num_modes && + out->current_mode < out->num_modes) + { + output = out; + break; + } + } + + return output; +} + +QMirClientScreen::QMirClientScreen(MirConnection *connection) + : mFormat(QImage::Format_RGB32) + , mDepth(32) + , mSurfaceFormat() + , mEglDisplay(EGL_NO_DISPLAY) + , mEglConfig(nullptr) +{ + // Initialize EGL. + ASSERT(eglBindAPI(EGL_OPENGL_ES_API) == EGL_TRUE); + + mEglNativeDisplay = mir_connection_get_egl_native_display(connection); + ASSERT((mEglDisplay = eglGetDisplay(mEglNativeDisplay)) != EGL_NO_DISPLAY); + ASSERT(eglInitialize(mEglDisplay, nullptr, nullptr) == EGL_TRUE); + + // Configure EGL buffers format. + mSurfaceFormat.setRedBufferSize(8); + mSurfaceFormat.setGreenBufferSize(8); + mSurfaceFormat.setBlueBufferSize(8); + mSurfaceFormat.setAlphaBufferSize(8); + mSurfaceFormat.setDepthBufferSize(24); + mSurfaceFormat.setStencilBufferSize(8); + if (!qEnvironmentVariableIsEmpty("QTUBUNTU_MULTISAMPLE")) { + mSurfaceFormat.setSamples(4); + DLOG("ubuntumirclient: setting MSAA to 4 samples"); + } +#ifdef QTUBUNTU_USE_OPENGL + mSurfaceFormat.setRenderableType(QSurfaceFormat::OpenGL); +#else + mSurfaceFormat.setRenderableType(QSurfaceFormat::OpenGLES); +#endif + mEglConfig = q_configFromGLFormat(mEglDisplay, mSurfaceFormat, true); + + #if !defined(QT_NO_DEBUG) + printEglConfig(mEglDisplay, mEglConfig); + #endif + + // Set vblank swap interval. + int swapInterval = kSwapInterval; + QByteArray swapIntervalString = qgetenv("QTUBUNTU_SWAPINTERVAL"); + if (!swapIntervalString.isEmpty()) { + bool ok; + swapInterval = swapIntervalString.toInt(&ok); + if (!ok) + swapInterval = kSwapInterval; + } + DLOG("ubuntumirclient: setting swap interval to %d", swapInterval); + eglSwapInterval(mEglDisplay, swapInterval); + + // Get screen resolution. + auto configDeleter = [](MirDisplayConfiguration *config) { mir_display_config_destroy(config); }; + using configUp = std::unique_ptr<MirDisplayConfiguration, decltype(configDeleter)>; + configUp displayConfig(mir_connection_create_display_config(connection), configDeleter); + ASSERT(displayConfig != nullptr); + + auto const displayOutput = find_active_output(displayConfig.get()); + ASSERT(displayOutput != nullptr); + + const MirDisplayMode *mode = &displayOutput->modes[displayOutput->current_mode]; + const int kScreenWidth = mode->horizontal_resolution; + const int kScreenHeight = mode->vertical_resolution; + DASSERT(kScreenWidth > 0 && kScreenHeight > 0); + + DLOG("ubuntumirclient: screen resolution: %dx%d", kScreenWidth, kScreenHeight); + + mGeometry = QRect(0, 0, kScreenWidth, kScreenHeight); + + DLOG("QQMirClientScreen::QQMirClientScreen (this=%p)", this); + + // Set the default orientation based on the initial screen dimmensions. + mNativeOrientation = (mGeometry.width() >= mGeometry.height()) ? Qt::LandscapeOrientation : Qt::PortraitOrientation; + + // If it's a landscape device (i.e. some tablets), start in landscape, otherwise portrait + mCurrentOrientation = (mNativeOrientation == Qt::LandscapeOrientation) ? Qt::LandscapeOrientation : Qt::PortraitOrientation; +} + +QMirClientScreen::~QMirClientScreen() +{ + eglTerminate(mEglDisplay); +} + +void QMirClientScreen::customEvent(QEvent* event) { + DASSERT(QThread::currentThread() == thread()); + + OrientationChangeEvent* oReadingEvent = static_cast<OrientationChangeEvent*>(event); + switch (oReadingEvent->mOrientation) { + case OrientationChangeEvent::LeftUp: { + mCurrentOrientation = (screen()->primaryOrientation() == Qt::LandscapeOrientation) ? + Qt::InvertedPortraitOrientation : Qt::LandscapeOrientation; + break; + } + case OrientationChangeEvent::TopUp: { + mCurrentOrientation = (screen()->primaryOrientation() == Qt::LandscapeOrientation) ? + Qt::LandscapeOrientation : Qt::PortraitOrientation; + break; + } + case OrientationChangeEvent::RightUp: { + mCurrentOrientation = (screen()->primaryOrientation() == Qt::LandscapeOrientation) ? + Qt::PortraitOrientation : Qt::InvertedLandscapeOrientation; + break; + } + case OrientationChangeEvent::TopDown: { + mCurrentOrientation = (screen()->primaryOrientation() == Qt::LandscapeOrientation) ? + Qt::InvertedLandscapeOrientation : Qt::InvertedPortraitOrientation; + break; + } + default: { + DLOG("QMirClientScreen::customEvent - Unknown orientation."); + return; + } + } + + // Raise the event signal so that client apps know the orientation changed + DLOG("QMirClientScreen::customEvent - handling orientation change to %s", orientationToStr(mCurrentOrientation)); + QWindowSystemInterface::handleScreenOrientationChange(screen(), mCurrentOrientation); +} + +void QMirClientScreen::handleWindowSurfaceResize(int windowWidth, int windowHeight) +{ + if ((windowWidth > windowHeight && mGeometry.width() < mGeometry.height()) + || (windowWidth < windowHeight && mGeometry.width() > mGeometry.height())) { + + // The window aspect ratio differ's from the screen one. This means that + // unity8 has rotated the window in its scene. + // As there's no way to express window rotation in Qt's API, we have + // Flip QScreen's dimensions so that orientation properties match + // (primaryOrientation particularly). + // FIXME: This assumes a phone scenario. Won't work, or make sense, + // on the desktop + + QRect currGeometry = mGeometry; + mGeometry.setWidth(currGeometry.height()); + mGeometry.setHeight(currGeometry.width()); + + DLOG("QMirClientScreen::handleWindowSurfaceResize - new screen geometry (w=%d, h=%d)", + mGeometry.width(), mGeometry.height()); + QWindowSystemInterface::handleScreenGeometryChange(screen(), + mGeometry /* newGeometry */, + mGeometry /* newAvailableGeometry */); + + if (mGeometry.width() < mGeometry.height()) { + mCurrentOrientation = Qt::PortraitOrientation; + } else { + mCurrentOrientation = Qt::LandscapeOrientation; + } + DLOG("QMirClientScreen::handleWindowSurfaceResize - new orientation %s",orientationToStr(mCurrentOrientation)); + QWindowSystemInterface::handleScreenOrientationChange(screen(), mCurrentOrientation); + } +} |