diff options
Diffstat (limited to 'src/plugins/platforms/openwfd/qopenwfdscreen.cpp')
| -rw-r--r-- | src/plugins/platforms/openwfd/qopenwfdscreen.cpp | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/src/plugins/platforms/openwfd/qopenwfdscreen.cpp b/src/plugins/platforms/openwfd/qopenwfdscreen.cpp new file mode 100644 index 0000000000..785bee9c55 --- /dev/null +++ b/src/plugins/platforms/openwfd/qopenwfdscreen.cpp @@ -0,0 +1,192 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 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 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qopenwfdscreen.h" + +#include "qopenwfdport.h" +#include "qopenwfdoutputbuffer.h" + +#include <QtGui/QGuiApplication> + +QOpenWFDScreen::QOpenWFDScreen(QOpenWFDPort *port) + : mPort(port) + , mFbo(0) + , mOutputBuffers(BUFFER_NUM) + , mCurrentRenderBufferIndex(0) + , mStagedBackBufferIndex(-1) + , mCommitedBackBufferIndex(-1) + , mBackBufferIndex(-1) +{ + printf ("\n"); + printf ("Information of screen %p:\n", this); + printf (" width..........: %d\n", port->pixelSize().width()); + printf (" height.........: %d\n", port->pixelSize().height()); + printf (" physical width.: %f\n", port->physicalSize().width()); + printf (" physical height: %f\n", port->physicalSize().height()); + printf ("\n"); + + EGLDisplay display = mPort->device()->eglDisplay(); + EGLContext context = mPort->device()->eglContext(); + + if (!eglMakeCurrent(display,EGL_NO_SURFACE,EGL_NO_SURFACE,context)) { + qDebug() << "screen: eglMakeCurrent FAILED"; + } + + glGenFramebuffers(1,&mFbo); + glBindFramebuffer(GL_FRAMEBUFFER,mFbo); + + for (int i = 0; i < mOutputBuffers.size(); i++) { + mOutputBuffers[i] = new QOpenWFDOutputBuffer(mPort->pixelSize(),mPort); + } + + mStagedBackBufferIndex = mOutputBuffers.size()-1; + mOutputBuffers[mStagedBackBufferIndex]->setAvailable(false);; + commitStagedOutputBuffer(); + + mOutputBuffers.at(mCurrentRenderBufferIndex)->bindToCurrentFbo(); + + if (mPort->device()->isDeviceInitializedAndCommited()) { + mPort->device()->commit(WFD_COMMIT_ENTIRE_PORT,mPort->handle()); + } + +} + +QOpenWFDScreen::~QOpenWFDScreen() +{ + for (int i = 0; i < mOutputBuffers.size(); i++) { + delete mOutputBuffers[i]; + } + glDeleteFramebuffers(1, &mFbo); +} + +QRect QOpenWFDScreen::geometry() const +{ + return QRect(QPoint(),mPort->pixelSize()); +} + +int QOpenWFDScreen::depth() const +{ + return 32; +} + +QImage::Format QOpenWFDScreen::format() const +{ + return QImage::Format_RGB32; +} + +QSize QOpenWFDScreen::physicalSize() const +{ + return mPort->physicalSize().toSize(); +} + +QOpenWFDPort * QOpenWFDScreen::port() const +{ + return mPort; +} + +void QOpenWFDScreen::swapBuffers() +{ + glFlush(); + + setStagedBackBuffer(mCurrentRenderBufferIndex); + mCurrentRenderBufferIndex = nextAvailableRenderBuffer(); + + bindFramebuffer(); + mOutputBuffers.at(mCurrentRenderBufferIndex)->bindToCurrentFbo(); +} + +void QOpenWFDScreen::bindFramebuffer() +{ + glBindFramebuffer(GL_FRAMEBUFFER,mFbo); +} + +void QOpenWFDScreen::setStagedBackBuffer(int bufferIndex) +{ + if (mStagedBackBufferIndex >= 0) { + mOutputBuffers[mStagedBackBufferIndex]->setAvailable(true); + } + + mOutputBuffers[bufferIndex]->setAvailable(false);; + mStagedBackBufferIndex = bufferIndex; + + if (mCommitedBackBufferIndex < 0) { + commitStagedOutputBuffer(); + } +} + +void QOpenWFDScreen::commitStagedOutputBuffer() +{ + Q_ASSERT(mStagedBackBufferIndex >= 0); + wfdBindSourceToPipeline(mPort->device()->handle(), + mPort->pipeline(), + mOutputBuffers.at(mStagedBackBufferIndex)->wfdSource(), + WFD_TRANSITION_AT_VSYNC, + 0); + mPort->device()->commit(WFD_COMMIT_PIPELINE,mPort->pipeline()); + mCommitedBackBufferIndex = mStagedBackBufferIndex; + mStagedBackBufferIndex = -1; +} + +int QOpenWFDScreen::nextAvailableRenderBuffer() const +{ + while (true) { + for (int i = 0; i < mOutputBuffers.size(); i++) { + if (mOutputBuffers.at(i)->isAvailable()) { + return i; + } + } + mPort->device()->waitForPipelineBindSourceCompleteEvent(); + } +} + +void QOpenWFDScreen::pipelineBindSourceComplete() +{ + if (mBackBufferIndex >= 0) { + mOutputBuffers[mBackBufferIndex]->setAvailable(true); + } + + mBackBufferIndex = mCommitedBackBufferIndex; + mCommitedBackBufferIndex = -1; + + if (mStagedBackBufferIndex >= 0) { + commitStagedOutputBuffer(); + } +} |