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Diffstat (limited to 'src/quick/scenegraph/qsgrhishadereffectnode_p.h')
| -rw-r--r-- | src/quick/scenegraph/qsgrhishadereffectnode_p.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/quick/scenegraph/qsgrhishadereffectnode_p.h b/src/quick/scenegraph/qsgrhishadereffectnode_p.h new file mode 100644 index 0000000000..26460d24b2 --- /dev/null +++ b/src/quick/scenegraph/qsgrhishadereffectnode_p.h @@ -0,0 +1,163 @@ +/**************************************************************************** +** +** 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 QSGRHISHADEREFFECTNODE_P_H +#define QSGRHISHADEREFFECTNODE_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 <private/qsgadaptationlayer_p.h> +#include <qsgmaterial.h> + +QT_BEGIN_NAMESPACE + +class QSGDefaultRenderContext; +class QSGPlainTexture; +class QSGRhiShaderEffectNode; +class QSGRhiGuiThreadShaderEffectManager; +class QFileSelector; + +class QSGRhiShaderLinker +{ +public: + void reset(const QShader &vs, const QShader &fs); + + void feedConstants(const QSGShaderEffectNode::ShaderData &shader, const QSet<int> *dirtyIndices = nullptr); + void feedSamplers(const QSGShaderEffectNode::ShaderData &shader, const QSet<int> *dirtyIndices = nullptr); + void linkTextureSubRects(); + + void dump(); + + struct Constant { + uint size; + QSGShaderEffectNode::VariableData::SpecialType specialType; + QVariant value; + bool operator==(const Constant &other) const { + return size == other.size && specialType == other.specialType + && (specialType == QSGShaderEffectNode::VariableData::None ? value == other.value : true); + } + }; + + bool m_error; + QShader m_vs; + QShader m_fs; + uint m_constantBufferSize; + QHash<uint, Constant> m_constants; // offset -> Constant + QHash<int, QVariant> m_samplers; // binding -> value (source ref) + QHash<QByteArray, int> m_samplerNameMap; // name -> binding +}; + +QDebug operator<<(QDebug debug, const QSGRhiShaderLinker::Constant &c); + +class QSGRhiShaderEffectMaterial : public QSGMaterial +{ +public: + QSGRhiShaderEffectMaterial(QSGRhiShaderEffectNode *node); + ~QSGRhiShaderEffectMaterial(); + + int compare(const QSGMaterial *other) const override; + QSGMaterialType *type() const override; + QSGMaterialShader *createShader() const override; + + void updateTextureProviders(bool layoutChange); + + static const int MAX_BINDINGS = 32; + + QSGRhiShaderEffectNode *m_node; + QSGMaterialType *m_materialType = nullptr; + QSGRhiShaderLinker m_linker; + QVector<QSGTextureProvider *> m_textureProviders; // [binding] = QSGTextureProvider + bool m_geometryUsesTextureSubRect = false; + QSGShaderEffectNode::CullMode m_cullMode = QSGShaderEffectNode::NoCulling; + bool m_hasCustomVertexShader = false; + bool m_hasCustomFragmentShader = false; + QShader m_vertexShader; + QShader m_fragmentShader; + QSGPlainTexture *m_dummyTexture = nullptr; +}; + +class QSGRhiShaderEffectNode : public QObject, public QSGShaderEffectNode +{ + Q_OBJECT + +public: + QSGRhiShaderEffectNode(QSGDefaultRenderContext *rc, QSGRhiGuiThreadShaderEffectManager *mgr); + + QRectF updateNormalizedTextureSubRect(bool supportsAtlasTextures) override; + void syncMaterial(SyncData *syncData) override; + void preprocess() override; + + static void cleanupMaterialTypeCache(); + +private Q_SLOTS: + void handleTextureChange(); + void handleTextureProviderDestroyed(QObject *object); + +private: + QSGDefaultRenderContext *m_rc; + QSGRhiGuiThreadShaderEffectManager *m_mgr; + QSGRhiShaderEffectMaterial m_material; +}; + +class QSGRhiGuiThreadShaderEffectManager : public QSGGuiThreadShaderEffectManager +{ +public: + bool hasSeparateSamplerAndTextureObjects() const override; + QString log() const override; + Status status() const override; + void prepareShaderCode(ShaderInfo::Type typeHint, const QByteArray &src, ShaderInfo *result) override; + +private: + bool reflect(ShaderInfo *result); + Status m_status = Uncompiled; + QFileSelector *m_fileSelector = nullptr; +}; + +QT_END_NAMESPACE + +#endif // QSGRHISHADEREFFECTNODE_P_H |