diff options
Diffstat (limited to 'src/quick/items/context2d/qquickcontext2dtile.cpp')
| -rw-r--r-- | src/quick/items/context2d/qquickcontext2dtile.cpp | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/quick/items/context2d/qquickcontext2dtile.cpp b/src/quick/items/context2d/qquickcontext2dtile.cpp new file mode 100644 index 0000000000..6217c66094 --- /dev/null +++ b/src/quick/items/context2d/qquickcontext2dtile.cpp @@ -0,0 +1,165 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module 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 "qquickcontext2dtile_p.h" + +#include <QOpenGLFramebufferObject> +#include <QOpenGLFramebufferObjectFormat> +#include <QOpenGLPaintDevice> + +QQuickContext2DTile::QQuickContext2DTile() + : m_dirty(true) + , m_rect(QRect(0, 0, 1, 1)) + , m_device(0) +{ +} + +QQuickContext2DTile::~QQuickContext2DTile() +{ + if (m_painter.isActive()) + m_painter.end(); +} + +QPainter* QQuickContext2DTile::createPainter(bool smooth) +{ + if (m_painter.isActive()) + m_painter.end(); + + if (m_device) { + aboutToDraw(); + m_painter.begin(m_device); + m_painter.resetTransform(); + m_painter.setCompositionMode(QPainter::CompositionMode_Source); + +#ifdef QQUICKCONTEXT2D_DEBUG + int v = 100; + int gray = (m_rect.x() / m_rect.width() + m_rect.y() / m_rect.height()) % 2; + if (gray) + v = 150; + m_painter.fillRect(QRect(0, 0, m_rect.width(), m_rect.height()), QColor(v, v, v, 255)); +#endif + if (smooth) + m_painter.setRenderHints(QPainter::Antialiasing | QPainter::HighQualityAntialiasing + | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform); + else + m_painter.setRenderHints(QPainter::Antialiasing | QPainter::HighQualityAntialiasing + | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform, false); + + m_painter.setCompositionMode(QPainter::CompositionMode_SourceOver); + m_painter.translate(-m_rect.left(), -m_rect.top()); + m_painter.setClipRect(m_rect); + m_painter.setClipping(false); + return &m_painter; + } + + return 0; +} + +QQuickContext2DFBOTile::QQuickContext2DFBOTile() + : QQuickContext2DTile() + , m_fbo(0) +{ +} + + +QQuickContext2DFBOTile::~QQuickContext2DFBOTile() +{ + delete m_fbo; +} + +void QQuickContext2DFBOTile::aboutToDraw() +{ + m_fbo->bind(); + if (!m_device) { + QOpenGLPaintDevice *gl_device = new QOpenGLPaintDevice(rect().size()); + m_device = gl_device; + QPainter p(m_device); + p.fillRect(QRectF(0, 0, m_fbo->width(), m_fbo->height()), QColor(qRgba(0, 0, 0, 0))); + p.end(); + } +} + +void QQuickContext2DFBOTile::drawFinished() +{ + m_fbo->release(); +} + +void QQuickContext2DFBOTile::setRect(const QRect& r) +{ + if (m_rect == r) + return; + m_rect = r; + m_dirty = true; + if (!m_fbo || m_fbo->size() != r.size()) { + QOpenGLFramebufferObjectFormat format; + format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil); + format.setInternalTextureFormat(GL_RGBA); + format.setMipmap(false); + + if (m_painter.isActive()) + m_painter.end(); + + delete m_fbo; + m_fbo = new QOpenGLFramebufferObject(r.size(), format); + } +} + + +QQuickContext2DImageTile::QQuickContext2DImageTile() + : QQuickContext2DTile() +{ +} + +QQuickContext2DImageTile::~QQuickContext2DImageTile() +{ +} + +void QQuickContext2DImageTile::setRect(const QRect& r) +{ + if (m_rect == r) + return; + m_rect = r; + m_dirty = true; + if (m_image.size() != r.size()) { + m_image = QImage(r.size(), QImage::Format_ARGB32_Premultiplied); + } + m_device = &m_image; +} |