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Diffstat (limited to 'src/quick/scenegraph/coreapi/qsgmaterialshader.h')
-rw-r--r-- | src/quick/scenegraph/coreapi/qsgmaterialshader.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/quick/scenegraph/coreapi/qsgmaterialshader.h b/src/quick/scenegraph/coreapi/qsgmaterialshader.h new file mode 100644 index 0000000000..d7ee23384f --- /dev/null +++ b/src/quick/scenegraph/coreapi/qsgmaterialshader.h @@ -0,0 +1,136 @@ +/**************************************************************************** +** +** Copyright (C) 2019 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 QSGMATERIALSHADER_H +#define QSGMATERIALSHADER_H + +#include <QtQuick/qtquickglobal.h> +#if QT_CONFIG(opengl) +# include <QtGui/qopenglshaderprogram.h> +#endif +#include <QtGui/QMatrix4x4> +#include <QtCore/QRect> +#include <QtQuick/qsgmaterialtype.h> // for source compat + +QT_BEGIN_NAMESPACE + +class QSGMaterial; +class QSGMaterialShaderPrivate; + +namespace QSGBatchRenderer { + class ShaderManager; +} + +class Q_QUICK_EXPORT QSGMaterialShader +{ +public: + class Q_QUICK_EXPORT RenderState { + public: + enum DirtyState + { + DirtyMatrix = 0x0001, + DirtyOpacity = 0x0002, + DirtyCachedMaterialData = 0x0004, + DirtyAll = 0xFFFF + }; + Q_DECLARE_FLAGS(DirtyStates, DirtyState) + + inline DirtyStates dirtyStates() const { return m_dirty; } + + inline bool isMatrixDirty() const { return m_dirty & DirtyMatrix; } + inline bool isOpacityDirty() const { return m_dirty & DirtyOpacity; } + bool isCachedMaterialDataDirty() const { return m_dirty & DirtyCachedMaterialData; } + + float opacity() const; + QMatrix4x4 combinedMatrix() const; + QMatrix4x4 modelViewMatrix() const; + QMatrix4x4 projectionMatrix() const; + QRect viewportRect() const; + QRect deviceRect() const; + float determinant() const; + float devicePixelRatio() const; +#if QT_CONFIG(opengl) + QOpenGLContext *context() const; +#endif + private: + friend class QSGRenderer; + DirtyStates m_dirty; + const void *m_data; + }; + + QSGMaterialShader(); + virtual ~QSGMaterialShader(); + + virtual void activate(); + virtual void deactivate(); + // First time a material is used, oldMaterial is null. + virtual void updateState(const RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial); + virtual char const *const *attributeNames() const = 0; // Array must end with null. +#if QT_CONFIG(opengl) + inline QOpenGLShaderProgram *program() { return &m_program; } +#endif +protected: + Q_DECLARE_PRIVATE(QSGMaterialShader) + QSGMaterialShader(QSGMaterialShaderPrivate &dd); + + friend class QSGDefaultRenderContext; + friend class QSGBatchRenderer::ShaderManager; +#if QT_CONFIG(opengl) + void setShaderSourceFile(QOpenGLShader::ShaderType type, const QString &sourceFile); + void setShaderSourceFiles(QOpenGLShader::ShaderType type, const QStringList &sourceFiles); + + virtual void compile(); +#endif + virtual void initialize() { } +#if QT_CONFIG(opengl) + virtual const char *vertexShader() const; + virtual const char *fragmentShader() const; +#endif +private: +#if QT_CONFIG(opengl) + QOpenGLShaderProgram m_program; +#endif + QScopedPointer<QSGMaterialShaderPrivate> d_ptr; +}; + +Q_DECLARE_OPERATORS_FOR_FLAGS(QSGMaterialShader::RenderState::DirtyStates) + +QT_END_NAMESPACE + +#endif |