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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSGRENDERER_P_H
#define QSGRENDERER_P_H
#include "qsgabstractrenderer.h"
#include "qsgabstractrenderer_p.h"
#include "qsgnode.h"
#include "qsgmaterial.h"
#include <QtQuick/private/qsgcontext_p.h>
QT_BEGIN_NAMESPACE
class QSGBindable;
class QSGNodeUpdater;
Q_QUICK_PRIVATE_EXPORT bool qsg_test_and_clear_fatal_render_error();
Q_QUICK_PRIVATE_EXPORT void qsg_set_fatal_renderer_error();
class Q_QUICK_PRIVATE_EXPORT QSGRenderer : public QSGAbstractRenderer
{
public:
QSGRenderer(QSGRenderContext *context);
virtual ~QSGRenderer();
// Accessed by QSGMaterialShader::RenderState.
QMatrix4x4 currentProjectionMatrix() const { return m_current_projection_matrix; }
QMatrix4x4 currentModelViewMatrix() const { return m_current_model_view_matrix; }
QMatrix4x4 currentCombinedMatrix() const { return m_current_projection_matrix * m_current_model_view_matrix; }
qreal currentOpacity() const { return m_current_opacity; }
qreal determinant() const { return m_current_determinant; }
void setDevicePixelRatio(qreal ratio) { m_device_pixel_ratio = ratio; }
qreal devicePixelRatio() const { return m_device_pixel_ratio; }
QSGRenderContext *context() const { return m_context; }
bool isMirrored() const;
void renderScene(const QSGBindable &bindable);
virtual void renderScene(GLuint fboId = 0) Q_DECL_OVERRIDE;
virtual void nodeChanged(QSGNode *node, QSGNode::DirtyState state) Q_DECL_OVERRIDE;
QSGNodeUpdater *nodeUpdater() const;
void setNodeUpdater(QSGNodeUpdater *updater);
inline QSGMaterialShader::RenderState state(QSGMaterialShader::RenderState::DirtyStates dirty) const;
virtual void setCustomRenderMode(const QByteArray &) { };
void clearChangedFlag() { m_changed_emitted = false; }
protected:
virtual void render() = 0;
const QSGBindable *bindable() const { return m_bindable; }
virtual void preprocess();
void addNodesToPreprocess(QSGNode *node);
void removeNodesToPreprocess(QSGNode *node);
QMatrix4x4 m_current_projection_matrix;
QMatrix4x4 m_current_model_view_matrix;
qreal m_current_opacity;
qreal m_current_determinant;
qreal m_device_pixel_ratio;
QSGRenderContext *m_context;
private:
QSGNodeUpdater *m_node_updater;
QSet<QSGNode *> m_nodes_to_preprocess;
const QSGBindable *m_bindable;
uint m_changed_emitted : 1;
uint m_is_rendering : 1;
};
class Q_QUICK_PRIVATE_EXPORT QSGBindable
{
public:
virtual ~QSGBindable() { }
virtual void bind() const = 0;
virtual void clear(QSGAbstractRenderer::ClearMode mode) const;
virtual void reactivate() const;
};
class QSGBindableFboId : public QSGBindable
{
public:
QSGBindableFboId(GLuint);
virtual void bind() const;
private:
GLuint m_id;
};
QSGMaterialShader::RenderState QSGRenderer::state(QSGMaterialShader::RenderState::DirtyStates dirty) const
{
QSGMaterialShader::RenderState s;
s.m_dirty = dirty;
s.m_data = this;
return s;
}
class Q_QUICK_PRIVATE_EXPORT QSGNodeDumper : public QSGNodeVisitor {
public:
static void dump(QSGNode *n);
QSGNodeDumper() : m_indent(0) {}
void visitNode(QSGNode *n);
void visitChildren(QSGNode *n);
private:
int m_indent;
};
QT_END_NAMESPACE
#endif
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