1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtQuick module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. 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The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QQUICKGENERICSHADEREFFECT_P_H 41 #define QQUICKGENERICSHADEREFFECT_P_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. It exists purely as an 48 // implementation detail. This header file may change from version to 49 // version without notice, or even be removed. 50 // 51 // We mean it. 52 // 53 54 #include <QtQuick/qquickitem.h> 55 #include <private/qtquickglobal_p.h> 56 #include <private/qsgadaptationlayer_p.h> 57 #include "qquickshadereffect_p.h" 58 #include "qquickshadereffectmesh_p.h" 59 60 QT_BEGIN_NAMESPACE 61 62 class Q_QUICK_PRIVATE_EXPORT QQuickGenericShaderEffect : public QObject 63 { 64 Q_OBJECT 65 66 public: 67 QQuickGenericShaderEffect(QQuickShaderEffect *item, QObject *parent = nullptr); 68 ~QQuickGenericShaderEffect(); 69 fragmentShader()70 QByteArray fragmentShader() const { return m_fragShader; } 71 void setFragmentShader(const QByteArray &src); 72 vertexShader()73 QByteArray vertexShader() const { return m_vertShader; } 74 void setVertexShader(const QByteArray &src); 75 blending()76 bool blending() const { return m_blending; } 77 void setBlending(bool enable); 78 79 QVariant mesh() const; 80 void setMesh(const QVariant &mesh); 81 cullMode()82 QQuickShaderEffect::CullMode cullMode() const { return m_cullMode; } 83 void setCullMode(QQuickShaderEffect::CullMode face); 84 85 QString log() const; 86 QQuickShaderEffect::Status status() const; 87 supportsAtlasTextures()88 bool supportsAtlasTextures() const { return m_supportsAtlasTextures; } 89 void setSupportsAtlasTextures(bool supports); 90 91 QString parseLog(); 92 93 void handleEvent(QEvent *); 94 void handleGeometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry); 95 QSGNode *handleUpdatePaintNode(QSGNode *, QQuickItem::UpdatePaintNodeData *); 96 void handleComponentComplete(); 97 void handleItemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value); 98 void maybeUpdateShaders(); 99 100 private slots: 101 void propertyChanged(int mappedId); 102 void sourceDestroyed(QObject *object); 103 void markGeometryDirtyAndUpdate(); 104 void markGeometryDirtyAndUpdateIfSupportsAtlas(); 105 void shaderCodePrepared(bool ok, QSGGuiThreadShaderEffectManager::ShaderInfo::Type typeHint, 106 const QByteArray &src, QSGGuiThreadShaderEffectManager::ShaderInfo *result); 107 108 private: 109 QSGGuiThreadShaderEffectManager *shaderEffectManager() const; 110 111 enum Shader { 112 Vertex, 113 Fragment, 114 115 NShader 116 }; 117 bool updateShader(Shader shaderType, const QByteArray &src); 118 void updateShaderVars(Shader shaderType); 119 void disconnectSignals(Shader shaderType); 120 bool sourceIsUnique(QQuickItem *source, Shader typeToSkip, int indexToSkip) const; 121 122 QQuickShaderEffect *m_item; 123 QSize m_meshResolution; 124 QQuickShaderEffectMesh *m_mesh; 125 QQuickGridMesh m_defaultMesh; 126 QQuickShaderEffect::CullMode m_cullMode; 127 bool m_blending; 128 bool m_supportsAtlasTextures; 129 mutable QSGGuiThreadShaderEffectManager *m_mgr; 130 QByteArray m_fragShader; 131 bool m_fragNeedsUpdate; 132 QByteArray m_vertShader; 133 bool m_vertNeedsUpdate; 134 135 QSGShaderEffectNode::ShaderData m_shaders[NShader]; 136 QSGShaderEffectNode::DirtyShaderFlags m_dirty; 137 QSet<int> m_dirtyConstants[NShader]; 138 QSet<int> m_dirtyTextures[NShader]; 139 QSGGuiThreadShaderEffectManager::ShaderInfo *m_inProgress[NShader]; 140 141 struct SignalMapper { SignalMapperSignalMapper142 SignalMapper() : mapper(nullptr), active(false) { } 143 QObject *mapper; 144 bool active; 145 }; 146 QVector<SignalMapper> m_signalMappers[NShader]; 147 }; 148 149 QT_END_NAMESPACE 150 151 #endif // QQUICKGENERICSHADEREFFECT_P_H 152