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Pasi Keranen authored
Separating the pixel size from the layout size like in HTML makes Canvas3D behave more like the WebGL canvas and reduces delta when porting code. Change-Id: Icb9e083839a42d0cd5c3823fa37c2e2f2a913e74 Reviewed-by:
Tomi Korpipää <tomi.korpipaa@digia.com> Reviewed-by:
Pasi Keränen <pasi.keranen@digia.com>
157da440
/******************************************************************************** Copyright (C) 2015 The Qt Company Ltd.** Contact: http://www.qt.io/licensing/**** This file is part of the QtCanvas3D module 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.**** $QT_END_LICENSE$******************************************************************************///// W A R N I N G// -------------//// This file is not part of the QtCanvas3D API. It exists purely as an// implementation detail. This header file may change from version to// version without notice, or even be removed.//// We mean it.#ifndef CANVAS3D_P_H#define CANVAS3D_P_H#include "canvas3dcommon_p.h"#include "context3d_p.h"#include <QtQuick/QQuickItem>#include <QtQuick/QQuickWindow>#include <QtGui/QOpenGLFramebufferObject>QT_BEGIN_NAMESPACEclass QOffscreenSurface;QT_CANVAS3D_BEGIN_NAMESPACE// Logs on high level information about the OpenGL driver and context.Q_DECLARE_LOGGING_CATEGORY(canvas3dinfo)// Debug: logs all the calls made in to Canvas3D and Context3D// Warning: debugs all warnings on failures in verificationsQ_DECLARE_LOGGING_CATEGORY(canvas3drendering)// Debug: Logs all the OpenGL errors, this means calling glGetError()7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
// after each OpenGL call and this will cause a negative performance hit.
Q_DECLARE_LOGGING_CATEGORY(canvas3dglerrors)
class QT_CANVAS3D_EXPORT Canvas : public QQuickItem, QOpenGLFunctions
{
Q_OBJECT
Q_DISABLE_COPY(Canvas)
Q_INTERFACES(QQmlParserStatus)
Q_PROPERTY(CanvasContext *context READ context NOTIFY contextChanged)
Q_PROPERTY(float devicePixelRatio READ devicePixelRatio NOTIFY devicePixelRatioChanged)
Q_PROPERTY(uint fps READ fps NOTIFY fpsChanged)
Q_PROPERTY(QSize pixelSize READ pixelSize WRITE setPixelSize NOTIFY pixelSizeChanged)
public:
Canvas(QQuickItem *parent = 0);
~Canvas();
void handleWindowChanged(QQuickWindow *win);
float devicePixelRatio();
QSize pixelSize();
void setPixelSize(QSize pixelSize);
void createFBOs();
void bindCurrentRenderTarget();
uint fps();
Q_INVOKABLE QJSValue getContext(const QString &name);
Q_INVOKABLE QJSValue 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 contextChanged(CanvasContext *context);
void fpsChanged(uint fps);
void pixelSizeChanged(QSize pixelSize);
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;
QThread *m_mainThread;
QThread *m_contextThread;
QRectF m_cachedGeometry;
CanvasContext *m_context3D;
bool m_isFirstRender;
QSize m_fboSize;
QSize m_initializedSize;
QOpenGLContext *m_glContext;
QOpenGLContext *m_glContextQt;
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QQuickWindow *m_contextWindow;
uint m_fps;
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;
QOpenGLFramebufferObjectFormat m_fboFormat;
QOpenGLFramebufferObjectFormat m_antialiasFboFormat;
QOffscreenSurface *m_offscreenSurface;
};
QT_CANVAS3D_END_NAMESPACE
QT_END_NAMESPACE
#endif // CANVAS3D_P_H