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// Copyright (C) 2017 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_SHADERBUILDER_H
#define QT3DRENDER_RENDER_SHADERBUILDER_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/qshaderprogram.h>
#include <Qt3DRender/private/backendnode_p.h>
#include <Qt3DRender/private/qgraphicsapifilter_p.h>
#include <Qt3DCore/private/vector_helper_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
struct ShaderBuilderUpdate
{
Qt3DCore::QNodeId builderId;
Qt3DRender::QShaderProgram::ShaderType shaderType;
QByteArray shaderCode;
};
class Q_3DRENDERSHARED_PRIVATE_EXPORT ShaderBuilder : public BackendNode
{
public:
static QString getPrototypesFile();
static void setPrototypesFile(const QString &file);
static QStringList getPrototypeNames();
ShaderBuilder();
~ShaderBuilder();
void cleanup();
Qt3DCore::QNodeId shaderProgramId() const;
QStringList enabledLayers() const;
GraphicsApiFilterData graphicsApi() const;
void setGraphicsApi(const GraphicsApiFilterData &graphicsApi);
QUrl shaderGraph(QShaderProgram::ShaderType type) const;
void setShaderGraph(QShaderProgram::ShaderType type, const QUrl &url);
QByteArray shaderCode(QShaderProgram::ShaderType type) const;
bool isShaderCodeDirty(QShaderProgram::ShaderType type) const;
void generateCode(QShaderProgram::ShaderType type);
void syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime) override;
std::vector<ShaderBuilderUpdate> takePendingUpdates() { return Qt3DCore::moveAndClear(m_pendingUpdates); }
QByteArray hashKeyForShaderGraph(QShaderProgram::ShaderType type) const;
private:
void setEnabledLayers(const QStringList &layers);
GraphicsApiFilterData m_graphicsApi;
Qt3DCore::QNodeId m_shaderProgramId;
QStringList m_enabledLayers;
QHash<QShaderProgram::ShaderType, QUrl> m_graphs;
QHash<QShaderProgram::ShaderType, QByteArray> m_codes;
QSet<QShaderProgram::ShaderType> m_dirtyTypes;
std::vector<ShaderBuilderUpdate> m_pendingUpdates;
};
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_RENDER_SHADERBUILDER_H
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