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137 lines
4.7 KiB
C++
137 lines
4.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2019 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtQuick module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QSGMATERIALSHADER_H
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#define QSGMATERIALSHADER_H
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#include <QtQuick/qtquickglobal.h>
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#if QT_CONFIG(opengl)
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# include <QtGui/qopenglshaderprogram.h>
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#endif
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#include <QtGui/QMatrix4x4>
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#include <QtCore/QRect>
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#include <QtQuick/qsgmaterialtype.h> // for source compat
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QT_BEGIN_NAMESPACE
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class QSGMaterial;
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class QSGMaterialShaderPrivate;
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namespace QSGBatchRenderer {
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class ShaderManager;
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}
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class Q_QUICK_EXPORT QSGMaterialShader
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{
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public:
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class Q_QUICK_EXPORT RenderState {
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public:
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enum DirtyState
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{
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DirtyMatrix = 0x0001,
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DirtyOpacity = 0x0002,
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DirtyCachedMaterialData = 0x0004,
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DirtyAll = 0xFFFF
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};
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Q_DECLARE_FLAGS(DirtyStates, DirtyState)
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inline DirtyStates dirtyStates() const { return m_dirty; }
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inline bool isMatrixDirty() const { return m_dirty & DirtyMatrix; }
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inline bool isOpacityDirty() const { return m_dirty & DirtyOpacity; }
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bool isCachedMaterialDataDirty() const { return m_dirty & DirtyCachedMaterialData; }
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float opacity() const;
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QMatrix4x4 combinedMatrix() const;
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QMatrix4x4 modelViewMatrix() const;
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QMatrix4x4 projectionMatrix() const;
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QRect viewportRect() const;
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QRect deviceRect() const;
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float determinant() const;
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float devicePixelRatio() const;
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#if QT_CONFIG(opengl)
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QOpenGLContext *context() const;
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#endif
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private:
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friend class QSGRenderer;
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DirtyStates m_dirty;
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const void *m_data;
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};
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QSGMaterialShader();
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virtual ~QSGMaterialShader();
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virtual void activate();
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virtual void deactivate();
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// First time a material is used, oldMaterial is null.
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virtual void updateState(const RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial);
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virtual char const *const *attributeNames() const = 0; // Array must end with null.
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#if QT_CONFIG(opengl)
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inline QOpenGLShaderProgram *program() { return &m_program; }
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#endif
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protected:
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Q_DECLARE_PRIVATE(QSGMaterialShader)
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QSGMaterialShader(QSGMaterialShaderPrivate &dd);
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friend class QSGDefaultRenderContext;
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friend class QSGBatchRenderer::ShaderManager;
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#if QT_CONFIG(opengl)
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void setShaderSourceFile(QOpenGLShader::ShaderType type, const QString &sourceFile);
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void setShaderSourceFiles(QOpenGLShader::ShaderType type, const QStringList &sourceFiles);
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virtual void compile();
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#endif
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virtual void initialize() { }
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#if QT_CONFIG(opengl)
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virtual const char *vertexShader() const;
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virtual const char *fragmentShader() const;
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#endif
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private:
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#if QT_CONFIG(opengl)
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QOpenGLShaderProgram m_program;
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#endif
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QScopedPointer<QSGMaterialShaderPrivate> d_ptr;
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};
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Q_DECLARE_OPERATORS_FOR_FLAGS(QSGMaterialShader::RenderState::DirtyStates)
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QT_END_NAMESPACE
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#endif
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