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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 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, 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.
**
** 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef TECHNIQUE_H
#define TECHNIQUE_H
#include <qt3dcore_global.h>
#include <node.h>
#include "tag.h"
#include "renderpass.h"
#include <QList>
#include <QMap>
#include <QQmlListProperty>
#include <QSharedPointer>
// FIXME - move enum somewhere common so don't need to include this here
#include <quniformvalue.h>
namespace Qt3D {
class QT3DCORESHARED_EXPORT Parameter : public QObject
{
Q_OBJECT
public:
// FIXME - sort this by frequency, to minimize the size of the
// vector in RenderShader. (We want to use compact storage, but we index
// by this enum, and resize to the largest value)
enum StandardUniform
{
None = -1,
ModelMatrix = 0,
ViewMatrix,
ProjectionMatrix,
ModelView,
ModelViewProjection,
ModelInverse,
ViewInverse,
ProjectionInverse,
ModelViewInverse,
ModelViewProjectionInverse,
ModelNormal,
ModelViewNormal
};
Parameter(QObject* parent, QString name, int ty);
QString name() const
{ return m_name; }
// permit one extra level of indrection in mesh naming of
// attributes (glTf at least does this)
void setMeshAttributeName(QString name);
QString meshAttributeName() const
{ return m_meshName; }
bool isStandardUniform() const;
void setStandardUniform(StandardUniform su);
StandardUniform standardUniform() const;
/**
* @brief setDefaultValue - for non-texture uniform parameters
* @param dv
*/
void setDefaultValue(QVariant dv);
// setUniformValue();
QVariant value() const;
int datatype() const
{ return m_type; }
bool isTextureType() const;
/**
* @brief uniformType - map the data type to the primitive uniform type
* @return
*/
Render::QUniformValue::Type uniformType() const;
signals:
void valueChanged();
private:
QString m_name;
int m_type;
QVariant m_value;
QVariant m_defaultValue;
QString m_meshName;
StandardUniform m_standardUniform;
};
class QT3DCORESHARED_EXPORT Technique : public Node
{
Q_OBJECT
Q_PROPERTY(QQmlListProperty<Qt3D::Tag> tags READ tags NOTIFY tagsChanged)
Q_PROPERTY(QQmlListProperty<Qt3D::RenderPass> renderPasses READ renderPassList NOTIFY renderPassesChanged)
public:
explicit Technique(Node *parent = 0);
QQmlListProperty<Qt3D::Tag> tags();
void addTag( const QString& name, const QVariant& value );
void removeTag( const QString& name );
void setTagValue( const QString& name, const QVariant& value );
QVariant tagValue( const QString& name ) const;
bool containsTag( const QString& name ) const;
void addPass(RenderPass* pass);
QList<RenderPass *> renderPasses() const;
QQmlListProperty<Qt3D::RenderPass> renderPassList();
// QQmlListProperty<Qt3D::Parameter> parameters();
void addParameter(Parameter* p);
QList<Parameter *> parameters() const
{ return m_parameters; }
Parameter* parameterByName(QString name) const;
signals:
void tagsChanged();
void renderPassesChanged();
private:
static void appendTag(QQmlListProperty<Tag> *list, Tag *bar);
static Tag *tagAt(QQmlListProperty<Tag> *list, int index);
static int tagCount(QQmlListProperty<Tag> *list);
static void clearTags(QQmlListProperty<Tag> *list);
static void appendRenderPass(QQmlListProperty<RenderPass> *list, RenderPass* renderPass);
static RenderPass *renderPassAt(QQmlListProperty<RenderPass> *list, int index);
static int renderPassCount(QQmlListProperty<RenderPass> *list);
static void clearRenderPasses( QQmlListProperty<RenderPass> *list);
QList<Tag *> m_tagList;
QMap<QString, Tag *> m_tags;
QList<Parameter *> m_parameters;
QList<RenderPass *> m_renderPasses;
};
}
#endif // TECHNIQUE_H
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