1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2019 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. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. 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 QSGMATERIALSHADER_H 41 #define QSGMATERIALSHADER_H 42 43 #include <QtQuick/qtquickglobal.h> 44 #if QT_CONFIG(opengl) 45 # include <QtGui/qopenglshaderprogram.h> 46 #endif 47 #include <QtGui/QMatrix4x4> 48 #include <QtCore/QRect> 49 #include <QtQuick/qsgmaterialtype.h> // for source compat 50 51 QT_BEGIN_NAMESPACE 52 53 class QSGMaterial; 54 class QSGMaterialShaderPrivate; 55 56 namespace QSGBatchRenderer { 57 class ShaderManager; 58 } 59 60 class Q_QUICK_EXPORT QSGMaterialShader 61 { 62 public: 63 class Q_QUICK_EXPORT RenderState { 64 public: 65 enum DirtyState 66 { 67 DirtyMatrix = 0x0001, 68 DirtyOpacity = 0x0002, 69 DirtyCachedMaterialData = 0x0004, 70 DirtyAll = 0xFFFF 71 }; Q_DECLARE_FLAGS(DirtyStates,DirtyState)72 Q_DECLARE_FLAGS(DirtyStates, DirtyState) 73 74 inline DirtyStates dirtyStates() const { return m_dirty; } 75 isMatrixDirty()76 inline bool isMatrixDirty() const { return m_dirty & DirtyMatrix; } isOpacityDirty()77 inline bool isOpacityDirty() const { return m_dirty & DirtyOpacity; } isCachedMaterialDataDirty()78 bool isCachedMaterialDataDirty() const { return m_dirty & DirtyCachedMaterialData; } 79 80 float opacity() const; 81 QMatrix4x4 combinedMatrix() const; 82 QMatrix4x4 modelViewMatrix() const; 83 QMatrix4x4 projectionMatrix() const; 84 QRect viewportRect() const; 85 QRect deviceRect() const; 86 float determinant() const; 87 float devicePixelRatio() const; 88 #if QT_CONFIG(opengl) 89 QOpenGLContext *context() const; 90 #endif 91 private: 92 friend class QSGRenderer; 93 DirtyStates m_dirty; 94 const void *m_data; 95 }; 96 97 QSGMaterialShader(); 98 virtual ~QSGMaterialShader(); 99 100 virtual void activate(); 101 virtual void deactivate(); 102 // First time a material is used, oldMaterial is null. 103 virtual void updateState(const RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial); 104 virtual char const *const *attributeNames() const = 0; // Array must end with null. 105 #if QT_CONFIG(opengl) program()106 inline QOpenGLShaderProgram *program() { return &m_program; } 107 #endif 108 protected: 109 Q_DECLARE_PRIVATE(QSGMaterialShader) 110 QSGMaterialShader(QSGMaterialShaderPrivate &dd); 111 112 friend class QSGDefaultRenderContext; 113 friend class QSGBatchRenderer::ShaderManager; 114 #if QT_CONFIG(opengl) 115 void setShaderSourceFile(QOpenGLShader::ShaderType type, const QString &sourceFile); 116 void setShaderSourceFiles(QOpenGLShader::ShaderType type, const QStringList &sourceFiles); 117 118 virtual void compile(); 119 #endif initialize()120 virtual void initialize() { } 121 #if QT_CONFIG(opengl) 122 virtual const char *vertexShader() const; 123 virtual const char *fragmentShader() const; 124 #endif 125 private: 126 #if QT_CONFIG(opengl) 127 QOpenGLShaderProgram m_program; 128 #endif 129 QScopedPointer<QSGMaterialShaderPrivate> d_ptr; 130 }; 131 132 Q_DECLARE_OPERATORS_FOR_FLAGS(QSGMaterialShader::RenderState::DirtyStates) 133 134 QT_END_NAMESPACE 135 136 #endif 137