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// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QT3DRENDER_RENDER_SHADERDATA_P_H
#define QT3DRENDER_RENDER_SHADERDATA_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <Qt3DRender/private/backendnode_p.h>
#include <Qt3DRender/qshaderdata.h>
#include <Qt3DCore/private/matrix4x4_p.h>
#include <mutex>
#include <shared_mutex>
#include <unordered_map>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
class GraphicsContext;
class GLBuffer;
class NodeManagers;
class Q_3DRENDERSHARED_PRIVATE_EXPORT ShaderData : public BackendNode
{
public:
enum TransformType {
NoTransform = -1,
ModelToEye = 0,
ModelToWorld,
ModelToWorldDirection
};
struct PropertyValue {
QVariant value;
bool isNode;
bool isArray;
bool isTransformed;
QString transformedPropertyName;
};
ShaderData();
~ShaderData();
const QHash<QString, PropertyValue> &properties() const { return m_originalProperties; }
// Called by FramePreparationJob
void updateWorldTransform(const Matrix4x4 &worldMatrix);
QVariant getTransformedProperty(const PropertyValue *v, const Matrix4x4 &viewMatrix) const noexcept;
// Unit tests purposes only
TransformType propertyTransformType(const QString &name) const;
void setManagers(NodeManagers *managers);
void syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime) override;
#ifdef Q_OS_WIN
// To get MSVC to compile even though we don't need any cleanup
void cleanup() {}
#endif
// Block.Property nameId, property nameId, PropertyValue *
using PropertyValuesForBlock = std::vector<std::tuple<int, int, const PropertyValue *>>;
const PropertyValuesForBlock &propertyValuesForBlock(int blockNameId) const;
void generatePropertyValuesForBlockIfNeeded(const QString &blockName);
protected:
PropertyReaderInterfacePtr m_propertyReader;
// 1 to 1 match with frontend properties
QHash<QString, PropertyValue> m_originalProperties;
// BlockNameId to array of pair of BlockName+PropertyName PropertyValue
std::unordered_map<int, PropertyValuesForBlock> m_blockNameToPropertyValues;
Matrix4x4 m_worldMatrix;
NodeManagers *m_managers;
static ShaderData *lookupResource(NodeManagers *managers, Qt3DCore::QNodeId id);
ShaderData *lookupResource(Qt3DCore::QNodeId id);
friend class RenderShaderDataFunctor;
private:
mutable std::shared_mutex m_lock;
};
class RenderShaderDataFunctor : public Qt3DCore::QBackendNodeMapper
{
public:
explicit RenderShaderDataFunctor(AbstractRenderer *renderer, NodeManagers *managers);
Qt3DCore::QBackendNode *create(Qt3DCore::QNodeId id) const final;
Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const final;
void destroy(Qt3DCore::QNodeId id) const final;
private:
NodeManagers *m_managers;
AbstractRenderer *m_renderer;
};
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
Q_DECLARE_METATYPE(Qt3DRender::Render::ShaderData*) // LCOV_EXCL_LINE
#endif // QT3DRENDER_RENDER_SHADERDATA_P_H
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