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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKOPENGLSHADEREFFECT_P_H
#define QQUICKOPENGLSHADEREFFECT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt 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.
//
#include <private/qtquickglobal_p.h>
QT_REQUIRE_CONFIG(quick_shadereffect);
#include <QtQuick/qquickitem.h>
#include <QtQuick/qsgmaterial.h>
#include <private/qtquickglobal_p.h>
#include <private/qsgadaptationlayer_p.h>
#include <private/qquickopenglshadereffectnode_p.h>
#include "qquickshadereffect_p.h"
#include "qquickshadereffectmesh_p.h"
#include <QtCore/qpointer.h>
#include <functional>
QT_BEGIN_NAMESPACE
class QSGContext;
class QFileSelector;
class QQuickOpenGLCustomMaterialShader;
namespace QtPrivate {
class MappedSlotObject;
}
// Common class for QQuickOpenGLShaderEffect and QQuickCustomParticle.
struct Q_QUICK_PRIVATE_EXPORT QQuickOpenGLShaderEffectCommon
{
typedef QQuickOpenGLShaderEffectMaterialKey Key;
typedef QQuickOpenGLShaderEffectMaterial::UniformData UniformData;
QQuickOpenGLShaderEffectCommon(QObject *host, std::function<void(int)> mappedPropertyChanged)
: host(host), mappedPropertyChanged(mappedPropertyChanged), fileSelector(nullptr)
{ }
~QQuickOpenGLShaderEffectCommon();
void disconnectPropertySignals(QQuickItem *item, Key::ShaderType shaderType);
void connectPropertySignals(QQuickItem *item, const QMetaObject *itemMetaObject, Key::ShaderType shaderType);
void updateParseLog(bool ignoreAttributes);
void lookThroughShaderCode(QQuickItem *item, const QMetaObject *itemMetaObject, Key::ShaderType shaderType, const QByteArray &code);
void updateShader(QQuickItem *item, const QMetaObject *itemMetaObject, Key::ShaderType shaderType);
void updateMaterial(QQuickOpenGLShaderEffectNode *node, QQuickOpenGLShaderEffectMaterial *material,
bool updateUniforms, bool updateUniformValues, bool updateTextureProviders);
void updateWindow(QQuickWindow *window);
// Called by slots in QQuickOpenGLShaderEffect:
void sourceDestroyed(QObject *object);
void propertyChanged(QQuickItem *item, const QMetaObject *itemMetaObject, int mappedId, bool *textureProviderChanged);
void clearSignalMappers(int shader);
QObject *host;
std::function<void(int)> mappedPropertyChanged;
Key source;
QVector<QByteArray> attributes;
QVector<UniformData> uniformData[Key::ShaderTypeCount];
QVector<QtPrivate::MappedSlotObject *> signalMappers[Key::ShaderTypeCount];
QString parseLog;
QFileSelector *fileSelector;
};
class Q_QUICK_PRIVATE_EXPORT QQuickOpenGLShaderEffect : public QObject
{
Q_OBJECT
public:
QQuickOpenGLShaderEffect(QQuickShaderEffect *item, QObject *parent = 0);
~QQuickOpenGLShaderEffect();
QByteArray fragmentShader() const { return m_common.source.sourceCode[Key::FragmentShader]; }
void setFragmentShader(const QByteArray &code);
QByteArray vertexShader() const { return m_common.source.sourceCode[Key::VertexShader]; }
void setVertexShader(const QByteArray &code);
bool blending() const { return m_blending; }
void setBlending(bool enable);
QVariant mesh() const;
void setMesh(const QVariant &mesh);
QQuickShaderEffect::CullMode cullMode() const { return m_cullMode; }
void setCullMode(QQuickShaderEffect::CullMode face);
QString log() const { return m_log; }
QQuickShaderEffect::Status status() const { return m_status; }
bool supportsAtlasTextures() const { return m_supportsAtlasTextures; }
void setSupportsAtlasTextures(bool supports);
QString parseLog();
void handleEvent(QEvent *);
void handleGeometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry);
QSGNode *handleUpdatePaintNode(QSGNode *, QQuickItem::UpdatePaintNodeData *);
void handleItemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value);
void maybeUpdateShaders(bool force = false);
private Q_SLOTS:
void updateGeometry();
void updateGeometryIfAtlased();
void updateLogAndStatus(const QString &log, int status);
void sourceDestroyed(QObject *object);
private:
void propertyChanged(int mappedId);
friend class QQuickCustomMaterialShader;
friend class QQuickOpenGLShaderEffectNode;
typedef QQuickOpenGLShaderEffectMaterialKey Key;
typedef QQuickOpenGLShaderEffectMaterial::UniformData UniformData;
QQuickShaderEffect *m_item;
const QMetaObject *m_itemMetaObject;
QSize m_meshResolution;
QQuickShaderEffectMesh *m_mesh;
QQuickGridMesh m_defaultMesh;
QQuickShaderEffect::CullMode m_cullMode;
QString m_log;
QQuickShaderEffect::Status m_status;
QQuickOpenGLShaderEffectCommon m_common;
uint m_blending : 1;
uint m_dirtyUniforms : 1;
uint m_dirtyUniformValues : 1;
uint m_dirtyTextureProviders : 1;
uint m_dirtyProgram : 1;
uint m_dirtyParseLog : 1;
uint m_dirtyMesh : 1;
uint m_dirtyGeometry : 1;
uint m_customVertexShader : 1;
uint m_supportsAtlasTextures : 1;
uint m_vertNeedsUpdate : 1;
uint m_fragNeedsUpdate : 1;
};
QT_END_NAMESPACE
#endif // QQUICKOPENGLSHADEREFFECT_P_H
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