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canvas3d_p.h 4.70 KiB
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/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtCanvas3D module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.  For licensing terms and
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** conditions see http://qt.digia.com/licensing.  For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPLv3 included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or later as published by the Free
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** Software Foundation and appearing in the file LICENSE.GPL included in
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** the packaging of this file.  Please review the following information to
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** ensure the GNU General Public License version 2.0 requirements will be
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** met: http://www.gnu.org/licenses/gpl-2.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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//
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//  W A R N I N G
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//  -------------
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//
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// This file is not part of the QtCanvas3D API.  It exists purely as an
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// implementation detail.  This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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#ifndef CANVAS3D_P_H
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#define CANVAS3D_P_H
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#include "canvas3dcommon_p.h"
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#include "context3d_p.h"
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#include <QQuickItem>
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#include <QQuickWindow>
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class QOffscreenSurface;
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QT_CANVAS3D_BEGIN_NAMESPACE
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class QT_CANVAS3D_EXPORT Canvas : public QQuickItem, QOpenGLFunctions
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{
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    Q_OBJECT
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    Q_DISABLE_COPY(Canvas)
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    Q_INTERFACES(QQmlParserStatus)
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    Q_PROPERTY(CanvasContext *context READ context NOTIFY contextChanged)
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    Q_PROPERTY(bool logAllCalls READ logAllCalls WRITE setLogAllCalls NOTIFY logAllCallsChanged)
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    Q_PROPERTY(bool logAllErrors READ logAllErrors WRITE setLogAllErrors NOTIFY logAllErrorsChanged)
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    Q_PROPERTY(float devicePixelRatio READ devicePixelRatio NOTIFY devicePixelRatioChanged)
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public:
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Canvas(QQuickItem *parent = 0); ~Canvas(); void handleWindowChanged(QQuickWindow *win); float devicePixelRatio(); void bindCurrentRenderTarget(); void setLogAllCalls(bool logCalls); bool logAllCalls() const; void setLogAllErrors(bool logErrors); bool logAllErrors() const; Q_INVOKABLE CanvasContext *getContext(const QString &name); Q_INVOKABLE CanvasContext *getContext(const QString &name, const QVariantMap &options); CanvasContext *context(); public slots: void ready(); void shutDown(); void renderNext(); signals: void needRender(); void devicePixelRatioChanged(float ratio); void animatedChanged(bool animated); void logAllCallsChanged(bool logCalls); void logAllErrorsChanged(bool logErrors); void contextChanged(CanvasContext *context); void initGL(); void renderGL(); void textureReady(int id, const QSize &size, float devicePixelRatio); protected: virtual void geometryChanged(const QRectF & newGeometry, const QRectF & oldGeometry); virtual void itemChange(ItemChange change, const ItemChangeData &value); virtual QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *); private: void setupAntialiasing(); void updateWindowParameters(); bool m_renderNodeReady; bool m_logAllCalls; bool m_logAllErrors; QThread *m_mainThread; QThread *m_contextThread; QRectF m_cachedGeometry; CanvasContext *m_context3D; bool m_isFirstRender; QSize m_initialisedSize; QOpenGLContext *m_glContext; QOpenGLContext *m_glContextQt; QQuickWindow *m_contextWindow; int m_maxSamples; float m_devicePixelRatio; bool m_isOpenGLES2; bool m_isSoftwareRendered; bool m_runningInDesigner; CanvasContextAttributes m_contextAttribs; bool m_isContextAttribsSet; QOpenGLFramebufferObject *m_antialiasFbo; QOpenGLFramebufferObject *m_renderFbo; QOpenGLFramebufferObject *m_displayFbo;
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QOffscreenSurface *m_offscreenSurface; }; QT_CANVAS3D_END_NAMESPACE #endif // CANVAS3D_P_H