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// Copyright (C) 2020 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_RHI_GLSHADER_P_H
#define QT3DRENDER_RENDER_RHI_GLSHADER_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 <shadervariables_p.h>
#include <shaderparameterpack_p.h>
#include <Qt3DRender/qshaderprogram.h>
#include <QMutex>
#include <QtGui/private/qshader_p.h>
#include <QtGui/private/qrhi_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
namespace Rhi {
class Q_AUTOTEST_EXPORT RHIShader
{
public:
struct UBO_Member
{
int nameId;
QShaderDescription::BlockVariable blockVariable;
std::vector<UBO_Member> structMembers;
};
struct UBO_Block
{
ShaderUniformBlock block;
std::vector<UBO_Member> members;
};
RHIShader();
bool isLoaded() const { return m_isLoaded; }
void setLoaded(bool loaded) { m_isLoaded = loaded; }
void setFragOutputs(const QHash<QString, int> &fragOutputs);
const QHash<QString, int> fragOutputs() const;
inline const std::vector<int> &uniformsNamesIds() const { return m_uniformsNamesIds; }
inline const std::vector<int> &standardUniformNameIds() const { return m_standardUniformNamesIds; }
inline const std::vector<int> &uniformBlockNamesIds() const { return m_uniformBlockNamesIds; }
inline const std::vector<int> &storageBlockNamesIds() const { return m_shaderStorageBlockNamesIds; }
inline const std::vector<int> &attributeNamesIds() const { return m_attributeNamesIds; }
const std::vector<QString> &uniformsNames() const;
const std::vector<QString> &attributesNames() const;
const std::vector<QString> &uniformBlockNames() const;
const std::vector<QString> &storageBlockNames() const;
const std::vector<QString> &samplerNames() const;
const std::vector<QString> &imagesNames() const;
inline const std::vector<ShaderUniform> &uniforms() const { return m_uniforms; }
inline const std::vector<ShaderAttribute> &attributes() const { return m_attributes; }
inline const std::vector<ShaderUniformBlock> &uniformBlocks() const { return m_uniformBlocks; }
inline const std::vector<ShaderStorageBlock> &storageBlocks() const { return m_shaderStorageBlocks; }
inline const std::vector<ShaderAttribute> &samplers() const { return m_samplers; }
inline const std::vector<ShaderAttribute> &images() const { return m_images; }
QHash<QString, ShaderUniform> activeUniformsForUniformBlock(int blockIndex) const;
ShaderUniformBlock uniformBlockForBlockIndex(int blockNameId) const noexcept;
ShaderUniformBlock uniformBlockForBlockNameId(int blockIndex) const noexcept;
ShaderUniformBlock uniformBlockForBlockName(const QString &blockName) const noexcept;
ShaderUniformBlock uniformBlockForInstanceName(const QString &instanceName) const noexcept;
ShaderUniformBlock uniformBlockForInstanceNameId(int instanceNameId) const noexcept;
ShaderStorageBlock storageBlockForBlockIndex(int blockIndex) const noexcept;
ShaderStorageBlock storageBlockForBlockNameId(int blockNameId) const noexcept;
ShaderStorageBlock storageBlockForBlockName(const QString &blockName) const noexcept;
enum ParameterKind { Uniform, UBO, SSBO, Struct };
ParameterKind categorizeVariable(int nameId) const noexcept;
bool hasUniform(int nameId) const noexcept;
bool hasActiveVariables() const noexcept;
void setShaderCode(const std::vector<QByteArray> &shaderCode);
const std::vector<QByteArray> &shaderCode() const;
const QShader &shaderStage(QShader::Stage stage) const noexcept { return m_stages[stage]; }
const std::vector<UBO_Block> &uboBlocks() const { return m_uboBlocks; }
const QSet<QString> &unqualifiedUniformNames() const noexcept
{
return m_unqualifiedUniformNames;
}
void introspect();
private:
bool m_isLoaded;
QShader m_stages[6];
std::vector<QString> m_uniformsNames;
std::vector<int> m_uniformsNamesIds;
std::vector<int> m_standardUniformNamesIds;
std::vector<ShaderUniform> m_uniforms;
std::vector<QString> m_attributesNames;
std::vector<int> m_attributeNamesIds;
std::vector<ShaderAttribute> m_attributes;
std::vector<QString> m_uniformBlockNames;
std::vector<int> m_uniformBlockNamesIds;
std::vector<ShaderUniformBlock> m_uniformBlocks;
QHash<int, QHash<QString, ShaderUniform>> m_uniformBlockIndexToShaderUniforms;
QSet<QString> m_unqualifiedUniformNames;
std::vector<QString> m_shaderStorageBlockNames;
std::vector<int> m_shaderStorageBlockNamesIds;
std::vector<ShaderStorageBlock> m_shaderStorageBlocks;
std::vector<QString> m_samplerNames;
std::vector<int> m_samplerIds;
std::vector<ShaderAttribute> m_samplers;
std::vector<QString> m_imageNames;
std::vector<int> m_imageIds;
std::vector<ShaderAttribute> m_images;
std::vector<QString> m_structNames;
std::vector<int> m_structNamesIds;
QHash<QString, int> m_fragOutputs;
std::vector<QByteArray> m_shaderCode;
// Private so that only SubmissionContext can call it
friend class SubmissionContext;
void initializeAttributes(const std::vector<ShaderAttribute> &attributesDescription);
void initializeUniformBlocks(const std::vector<ShaderUniformBlock> &uniformBlockDescription);
void
initializeShaderStorageBlocks(const std::vector<ShaderStorageBlock> &shaderStorageBlockDescription);
void initializeSamplers(const std::vector<ShaderAttribute> &samplerDescription);
void initializeImages(const std::vector<ShaderAttribute> &imageDescription);
void recordAllUniforms(UBO_Member &uboMember, QString parentName);
std::vector<UBO_Block> m_uboBlocks;
mutable QMutex m_mutex;
QMetaObject::Connection m_contextConnection;
};
} // Rhi
} // Render
} // Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_RENDER_RHI_GLSHADER_P_H
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