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Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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QSGRhiShaderEffectMaterial Class Reference

#include <qsgrhishadereffectnode_p.h>

+ Inheritance diagram for QSGRhiShaderEffectMaterial:
+ Collaboration diagram for QSGRhiShaderEffectMaterial:

Public Member Functions

 QSGRhiShaderEffectMaterial (QSGRhiShaderEffectNode *node)
 
 ~QSGRhiShaderEffectMaterial ()
 
int compare (const QSGMaterial *other) const override
 Compares this material to other and returns 0 if they are equal; -1 if this material should sort before other and 1 if other should sort before.
 
QSGMaterialTypetype () const override
 This function is called by the scene graph to query an identifier that is unique to the QSGMaterialShader instantiated by createShader().
 
QSGMaterialShadercreateShader (QSGRendererInterface::RenderMode renderMode) const override
 This function returns a new instance of a the QSGMaterialShader implementation used to render geometry for a specific implementation of QSGMaterial.
 
void updateTextureProviders (bool layoutChange)
 
bool usesSubRectUniform (int binding) const
 
- Public Member Functions inherited from QSGMaterial
 QSGMaterial ()
 
virtual ~QSGMaterial ()
 
QSGMaterial::Flags flags () const
 Returns the material's flags.
 
void setFlag (Flags flags, bool on=true)
 Sets the flags flags on this material if on is true; otherwise clears the attribute.
 
int viewCount () const
 

Public Attributes

QSGRhiShaderEffectNodem_node
 
QSGMaterialTypem_materialType = nullptr
 
voidm_materialTypeCacheKey = nullptr
 
QSGRhiShaderLinker m_linker
 
QVector< QSGTextureProvider * > m_textureProviders
 
bool m_geometryUsesTextureSubRect = false
 
QSGShaderEffectNode::CullMode m_cullMode = QSGShaderEffectNode::NoCulling
 
bool m_hasCustomVertexShader = false
 
bool m_hasCustomFragmentShader = false
 
QShader m_vertexShader
 
QShader m_fragmentShader
 
QSGPlainTexturem_dummyTexture = nullptr
 

Static Public Attributes

static const int MAX_BINDINGS = 32
 

Additional Inherited Members

- Public Types inherited from QSGMaterial
enum  Flag {
  Blending = 0x0001 , RequiresDeterminant = 0x0002 , RequiresFullMatrixExceptTranslate = 0x0004 | RequiresDeterminant , RequiresFullMatrix = 0x0008 | RequiresFullMatrixExceptTranslate ,
  NoBatching = 0x0010 , MultiView2 = 0x10000 , MultiView3 = 0x20000 , MultiView4 = 0x40000
}
 \value Blending Set this flag to true if the material requires blending to be enabled during rendering. More...
 

Detailed Description

Definition at line 61 of file qsgrhishadereffectnode_p.h.

Constructor & Destructor Documentation

◆ QSGRhiShaderEffectMaterial()

QSGRhiShaderEffectMaterial::QSGRhiShaderEffectMaterial ( QSGRhiShaderEffectNode * node)

Definition at line 515 of file qsgrhishadereffectnode.cpp.

References QSGMaterial::Blending, QSGMaterial::RequiresFullMatrix, and QSGMaterial::setFlag().

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◆ ~QSGRhiShaderEffectMaterial()

QSGRhiShaderEffectMaterial::~QSGRhiShaderEffectMaterial ( )

Member Function Documentation

◆ compare()

int QSGRhiShaderEffectMaterial::compare ( const QSGMaterial * other) const
overridevirtual

Compares this material to other and returns 0 if they are equal; -1 if this material should sort before other and 1 if other should sort before.

The scene graph can reorder geometry nodes to minimize state changes. The compare function is called during the sorting process so that the materials can be sorted to minimize state changes in each call to QSGMaterialShader::updateState().

The this pointer and other is guaranteed to have the same type().

Reimplemented from QSGMaterial.

Definition at line 538 of file qsgrhishadereffectnode.cpp.

References hasAtlasTexture(), QSGRhiShaderLinker::m_constants, m_cullMode, m_geometryUsesTextureSubRect, m_linker, m_textureProviders, o, other(), Q_ASSERT, t2, and type().

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◆ createShader()

QSGMaterialShader * QSGRhiShaderEffectMaterial::createShader ( QSGRendererInterface::RenderMode renderMode) const
overridevirtual

This function returns a new instance of a the QSGMaterialShader implementation used to render geometry for a specific implementation of QSGMaterial.

The function will be called only once for each combination of material type and renderMode and will be cached internally.

For most materials, the renderMode can be ignored. A few materials may need custom handling for specific render modes. For instance if the material implements antialiasing in a way that needs to account for perspective transformations when RenderMode3D is in use.

Implements QSGMaterial.

Definition at line 590 of file qsgrhishadereffectnode.cpp.

References Q_UNUSED.

◆ type()

QSGMaterialType * QSGRhiShaderEffectMaterial::type ( ) const
overridevirtual

This function is called by the scene graph to query an identifier that is unique to the QSGMaterialShader instantiated by createShader().

For many materials, the typical approach will be to return a pointer to a static, and so globally available, QSGMaterialType instance. The QSGMaterialType is an opaque object. Its purpose is only to serve as a type-safe, simple way to generate unique material identifiers.

QSGMaterialType *type() const override
{
return &type;
}
QSGMaterialType * type() const override
This function is called by the scene graph to query an identifier that is unique to the QSGMaterialSh...
The QSGMaterialType class is used as a unique type token in combination with QSGMaterial.

Implements QSGMaterial.

Definition at line 585 of file qsgrhishadereffectnode.cpp.

References m_materialType.

Referenced by compare().

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◆ updateTextureProviders()

void QSGRhiShaderEffectMaterial::updateTextureProviders ( bool layoutChange)

Definition at line 596 of file qsgrhishadereffectnode.cpp.

References QObject::connect(), QHash< Key, T >::constBegin(), QHash< Key, T >::constEnd(), QThread::currentThread(), QObject::disconnect(), it, m_linker, m_node, QSGRhiShaderLinker::m_samplers, m_textureProviders, MAX_BINDINGS, Q_ASSERT_X, qobject_cast< QQuickItem * >(), qWarning, SIGNAL, SLOT, and typeName.

Referenced by QSGRhiShaderEffectNode::syncMaterial().

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◆ usesSubRectUniform()

bool QSGRhiShaderEffectMaterial::usesSubRectUniform ( int binding) const
inline

Definition at line 73 of file qsgrhishadereffectnode_p.h.

References QSet< T >::contains(), m_linker, and QSGRhiShaderLinker::m_subRectBindings.

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Member Data Documentation

◆ m_cullMode

QSGShaderEffectNode::CullMode QSGRhiShaderEffectMaterial::m_cullMode = QSGShaderEffectNode::NoCulling

Definition at line 83 of file qsgrhishadereffectnode_p.h.

Referenced by compare(), and QSGRhiShaderEffectNode::syncMaterial().

◆ m_dummyTexture

QSGPlainTexture* QSGRhiShaderEffectMaterial::m_dummyTexture = nullptr

Definition at line 88 of file qsgrhishadereffectnode_p.h.

Referenced by ~QSGRhiShaderEffectMaterial().

◆ m_fragmentShader

◆ m_geometryUsesTextureSubRect

bool QSGRhiShaderEffectMaterial::m_geometryUsesTextureSubRect = false

◆ m_hasCustomFragmentShader

bool QSGRhiShaderEffectMaterial::m_hasCustomFragmentShader = false

Definition at line 85 of file qsgrhishadereffectnode_p.h.

Referenced by QSGRhiShaderEffectNode::syncMaterial().

◆ m_hasCustomVertexShader

bool QSGRhiShaderEffectMaterial::m_hasCustomVertexShader = false

Definition at line 84 of file qsgrhishadereffectnode_p.h.

Referenced by QSGRhiShaderEffectNode::syncMaterial().

◆ m_linker

QSGRhiShaderLinker QSGRhiShaderEffectMaterial::m_linker

◆ m_materialType

QSGMaterialType* QSGRhiShaderEffectMaterial::m_materialType = nullptr

◆ m_materialTypeCacheKey

void* QSGRhiShaderEffectMaterial::m_materialTypeCacheKey = nullptr

◆ m_node

QSGRhiShaderEffectNode* QSGRhiShaderEffectMaterial::m_node

Definition at line 77 of file qsgrhishadereffectnode_p.h.

Referenced by updateTextureProviders().

◆ m_textureProviders

◆ m_vertexShader

◆ MAX_BINDINGS

const int QSGRhiShaderEffectMaterial::MAX_BINDINGS = 32
static

The documentation for this class was generated from the following files: