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Diffstat (limited to 'src/quick/items/qquickopenglshadereffectnode_p.h')
| -rw-r--r-- | src/quick/items/qquickopenglshadereffectnode_p.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/src/quick/items/qquickopenglshadereffectnode_p.h b/src/quick/items/qquickopenglshadereffectnode_p.h new file mode 100644 index 0000000000..1adfa4dd29 --- /dev/null +++ b/src/quick/items/qquickopenglshadereffectnode_p.h @@ -0,0 +1,154 @@ +/**************************************************************************** +** +** 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 QQUICKOPENGLSHADEREFFECTNODE_P_H +#define QQUICKOPENGLSHADEREFFECTNODE_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 <QtQuick/qsgnode.h> +#include <QtQuick/qsgmaterial.h> +#include <QtQuick/qsgtextureprovider.h> +#include <QtQuick/qquickitem.h> +#include <private/qtquickglobal_p.h> +#include <private/qquickshadereffect_p.h> + +#include <QtCore/qsharedpointer.h> +#include <QtCore/qpointer.h> + +QT_BEGIN_NAMESPACE + +struct QQuickOpenGLShaderEffectMaterialKey { + enum ShaderType + { + VertexShader, + FragmentShader, + ShaderTypeCount + }; + + QByteArray sourceCode[ShaderTypeCount]; + const char *className; + + bool operator == (const QQuickOpenGLShaderEffectMaterialKey &other) const; + bool operator != (const QQuickOpenGLShaderEffectMaterialKey &other) const; +}; + +uint qHash(const QQuickOpenGLShaderEffectMaterialKey &key); + +class QQuickCustomMaterialShader; +class QQuickOpenGLShaderEffectNode; +class Q_QUICK_PRIVATE_EXPORT QQuickOpenGLShaderEffectMaterial : public QSGMaterial +{ +public: + struct UniformData + { + enum SpecialType { None, Sampler, SubRect, Opacity, Matrix }; + + QByteArray name; + QVariant value; + SpecialType specialType; + + bool operator == (const UniformData &other) const; + }; + + explicit QQuickOpenGLShaderEffectMaterial(QQuickOpenGLShaderEffectNode *node = 0); + QSGMaterialType *type() const Q_DECL_OVERRIDE; + QSGMaterialShader *createShader() const Q_DECL_OVERRIDE; + int compare(const QSGMaterial *other) const Q_DECL_OVERRIDE; + + QVector<QByteArray> attributes; + QVector<UniformData> uniforms[QQuickOpenGLShaderEffectMaterialKey::ShaderTypeCount]; + QVector<QSGTextureProvider *> textureProviders; + QQuickShaderEffect::CullMode cullMode; + bool geometryUsesTextureSubRect; + + void setProgramSource(const QQuickOpenGLShaderEffectMaterialKey &source); + void updateTextures() const; + void invalidateTextureProvider(QSGTextureProvider *provider); + + static void cleanupMaterialCache(); + +protected: + friend class QQuickCustomMaterialShader; + + // Each material needs a unique type to ensure that the renderer has a one + // and exactly one GL program for every unique set of shader sources. + // setProgramSource() stores the sources in a cache along with the right + // type. The type is cleaned up in cleanupMaterialCache() which is called + // when the GL context is shut down. + QSGMaterialType *m_type; + QQuickOpenGLShaderEffectMaterialKey m_source; + + QQuickOpenGLShaderEffectNode *m_node; + bool m_emittedLogChanged; +}; + + +class QSGShaderEffectMesh; + +class Q_QUICK_PRIVATE_EXPORT QQuickOpenGLShaderEffectNode : public QObject, public QSGGeometryNode +{ + Q_OBJECT +public: + QQuickOpenGLShaderEffectNode(); + virtual ~QQuickOpenGLShaderEffectNode(); + + void preprocess() Q_DECL_OVERRIDE; + +Q_SIGNALS: + void logAndStatusChanged(const QString &, int status); + void dirtyTexture(); + +private Q_SLOTS: + void markDirtyTexture(); + void textureProviderDestroyed(QObject *object); +}; + +QT_END_NAMESPACE + +#endif // QQUICKOPENGLSHADEREFFECTNODE_P_H |