#include <qglengineshadermanager_p.h>

Inheritance diagram for QGLEngineShaderManager:

Public Types
enum	MaskType { NoMask, PixelMask, SubPixelMaskPass1, SubPixelMaskPass2, SubPixelWithGammaMask }

enum	OpacityMode { NoOpacity, UniformOpacity, AttributeOpacity }

enum	PixelSrcType { ImageSrc = Qt::TexturePattern+1, NonPremultipliedImageSrc = Qt::TexturePattern+2, PatternSrc = Qt::TexturePattern+3, TextureSrcWithPattern = Qt::TexturePattern+4 }

enum	Uniform { ImageTexture, PatternColor, GlobalOpacity, Depth, MaskTexture, FragmentColor, LinearData, Angle, HalfViewportSize, Fmp, Fmp2MRadius2, Inverse2Fmp2MRadius2, SqrFr, BRadius, InvertedTextureSize, BrushTransform, BrushTexture, Matrix, NumUniforms }

Public Functions
QGLShaderProgram *	blitProgram ()

QGLShaderProgram *	currentProgram ()

GLuint	getUniformLocation (Uniform id)

bool	hasComplexGeometry () const

void	optimiseForBrushTransform (QTransform::TransformationType transformType)

	QGLEngineShaderManager (QGLContext *context)

void	removeCustomStage ()

void	setCompositionMode (QPainter::CompositionMode)

void	setCustomStage (QGLCustomShaderStage *stage)

void	setDirty ()

void	setHasComplexGeometry (bool hasComplexGeometry)

void	setMaskType (MaskType)

void	setOpacityMode (OpacityMode)

void	setSrcPixelType (Qt::BrushStyle)

void	setSrcPixelType (PixelSrcType)

QGLShaderProgram *	simpleProgram ()

void	useBlitProgram ()

bool	useCorrectShaderProg ()

void	useSimpleProgram ()

	~QGLEngineShaderManager ()

Public Functions inherited from QObject
bool	blockSignals (bool b)
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...

const QObjectList &	children () const
	Returns a list of child objects. More...

bool	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=0, const QObject receiver=0, const char *member=0)

bool	disconnect (const QObject receiver, const char member=0)

void	dumpObjectInfo ()
	Dumps information about signal connections, etc. More...

void	dumpObjectTree ()
	Dumps a tree of children to the debug output. More...

QList< QByteArray >	dynamicPropertyNames () const
	Returns the names of all properties that were dynamically added to the object using setProperty(). More...

virtual bool	event (QEvent *)
	This virtual function receives events to an object and should return true if the event e was recognized and processed. More...

virtual bool	eventFilter (QObject , QEvent )
	Filters events if this object has been installed as an event filter for the watched object. More...

template<typename T >
T	findChild (const QString &aName=QString()) const
	Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...

template<typename T >
QList< T >	findChildren (const QString &aName=QString()) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...

template<typename T >
QList< T >	findChildren (const QRegExp &re) const

bool	inherits (const char *classname) const
	Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...

void	installEventFilter (QObject *)
	Installs an event filter filterObj on this object. More...

bool	isWidgetType () const
	Returns true if the object is a widget; otherwise returns false. More...

void	killTimer (int id)
	Kills the timer with timer identifier, id. More...

virtual const QMetaObject *	metaObject () const
	Returns a pointer to the meta-object of this object. More...

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children. More...

QString	objectName () const

QObject *	parent () const
	Returns a pointer to the parent object. More...

QVariant	property (const char *name) const
	Returns the value of the object's name property. More...

Q_INVOKABLE	QObject (QObject *parent=0)
	Constructs an object with parent object parent. More...

void	removeEventFilter (QObject *)
	Removes an event filter object obj from this object. More...

void	setObjectName (const QString &name)

void	setParent (QObject *)
	Makes the object a child of parent. More...

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value. More...

void	setUserData (uint id, QObjectUserData *data)

bool	signalsBlocked () const
	Returns true if signals are blocked; otherwise returns false. More...

int	startTimer (int interval)
	Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...

QThread *	thread () const
	Returns the thread in which the object lives. More...

QObjectUserData *	userData (uint id) const

virtual	~QObject ()
	Destroys the object, deleting all its child objects. More...

Public Variables
QGLEngineSharedShaders *	sharedShaders

Properties
QTransform	brushTransform

bool	complexGeometry

QPainter::CompositionMode	compositionMode

QGLContext *	ctx

QGLEngineShaderProg *	currentShaderProg

QGLCustomShaderStage *	customSrcStage

MaskType	maskType

OpacityMode	opacityMode

bool	shaderProgNeedsChanging

int	srcPixelType

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. More...

Signals inherited from QObject
void	destroyed (QObject *=0)
	This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...

Static Public Functions inherited from QObject
static bool	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...

static bool	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	Disconnects signal in object sender from method in object receiver. More...

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static uint	registerUserData ()

static QString	tr (const char sourceText, const char comment=0, int n=-1)

static QString	trUtf8 (const char sourceText, const char comment=0, int n=-1)

Static Public Variables inherited from QObject
static const QMetaObject	staticMetaObject
	This variable stores the meta-object for the class. More...

Protected Functions inherited from QObject
virtual void	childEvent (QChildEvent *)
	This event handler can be reimplemented in a subclass to receive child events. More...

virtual void	connectNotify (const char *signal)
	This virtual function is called when something has been connected to signal in this object. More...

virtual void	customEvent (QEvent *)
	This event handler can be reimplemented in a subclass to receive custom events. More...

virtual void	disconnectNotify (const char *signal)
	This virtual function is called when something has been disconnected from signal in this object. More...

	QObject (QObjectPrivate &dd, QObject *parent=0)

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal. More...

QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *)
	This event handler can be reimplemented in a subclass to receive timer events for the object. More...

Protected Variables inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Static Protected Variables inherited from QObject
static const QMetaObject	staticQtMetaObject

Related Functions inherited from QObject
T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QRegExp &regExp)()

T *	qobject_cast (QObject *object)

	QObjectList

void *	qt_find_obj_child (QObject parent, const char type, const QString &name)
	Returns a pointer to the object named name that inherits type and with a given parent. More...

Detailed Description

Definition at line 417 of file qglengineshadermanager_p.h.

Enumerations

◆ MaskType

enum QGLEngineShaderManager::MaskType

Enumerator
NoMask
PixelMask
SubPixelMaskPass1
SubPixelMaskPass2
SubPixelWithGammaMask

Definition at line 424 of file qglengineshadermanager_p.h.

424 {NoMask, PixelMask, SubPixelMaskPass1, SubPixelMaskPass2, SubPixelWithGammaMask};

QGLEngineShaderManager::SubPixelMaskPass2

Definition: qglengineshadermanager_p.h:424

QGLEngineShaderManager::PixelMask

Definition: qglengineshadermanager_p.h:424

QGLEngineShaderManager::NoMask

Definition: qglengineshadermanager_p.h:424

QGLEngineShaderManager::SubPixelMaskPass1

Definition: qglengineshadermanager_p.h:424

QGLEngineShaderManager::SubPixelWithGammaMask

Definition: qglengineshadermanager_p.h:424

◆ OpacityMode

enum QGLEngineShaderManager::OpacityMode

Enumerator
NoOpacity
UniformOpacity
AttributeOpacity

Definition at line 454 of file qglengineshadermanager_p.h.

                      {
         NoOpacity,
         UniformOpacity,
         AttributeOpacity
     };

◆ PixelSrcType

enum QGLEngineShaderManager::PixelSrcType

Enumerator
ImageSrc
NonPremultipliedImageSrc
PatternSrc
TextureSrcWithPattern

Definition at line 425 of file qglengineshadermanager_p.h.

                       {
         ImageSrc = Qt::TexturePattern+1,
         NonPremultipliedImageSrc = Qt::TexturePattern+2,
         PatternSrc = Qt::TexturePattern+3,
         TextureSrcWithPattern = Qt::TexturePattern+4
     };

◆ Uniform

enum QGLEngineShaderManager::Uniform

Enumerator
ImageTexture
PatternColor
GlobalOpacity
Depth
MaskTexture
FragmentColor
LinearData
Angle
HalfViewportSize
Fmp
Fmp2MRadius2
Inverse2Fmp2MRadius2
SqrFr
BRadius
InvertedTextureSize
BrushTransform
BrushTexture
Matrix
NumUniforms

Definition at line 432 of file qglengineshadermanager_p.h.

                  {
         ImageTexture,
         PatternColor,
         GlobalOpacity,
         Depth,
         MaskTexture,
         FragmentColor,
         LinearData,
         Angle,
         HalfViewportSize,
         Fmp,
         Fmp2MRadius2,
         Inverse2Fmp2MRadius2,
         SqrFr,
         BRadius,
         InvertedTextureSize,
         BrushTransform,
         BrushTexture,
         Matrix,
         NumUniforms
     };

Constructors and Destructors

◆ QGLEngineShaderManager()

QGLEngineShaderManager::QGLEngineShaderManager ( QGLContext * context )

Definition at line 456 of file qglengineshadermanager.cpp.

     : ctx(context),
       shaderProgNeedsChanging(true),
       complexGeometry(false),
       srcPixelType(Qt::NoBrush),
       opacityMode(NoOpacity),
       maskType(NoMask),
       compositionMode(QPainter::CompositionMode_SourceOver),
       customSrcStage(0),
       currentShaderProg(0)
 {
     sharedShaders = QGLEngineSharedShaders::shadersForContext(context);
 }

◆ ~QGLEngineShaderManager()

QGLEngineShaderManager::~QGLEngineShaderManager ( )

Definition at line 470 of file qglengineshadermanager.cpp.

 {
     //###
     removeCustomStage();
 }

Functions

◆ blitProgram()

QGLShaderProgram * QGLEngineShaderManager::blitProgram ( )

Definition at line 618 of file qglengineshadermanager.cpp.

Referenced by QGLTextureGlyphCache::resizeTextureData().

 {
     return sharedShaders->blitProgram();
 }

◆ currentProgram()

QGLShaderProgram * QGLEngineShaderManager::currentProgram ( )

Definition at line 585 of file qglengineshadermanager.cpp.

Referenced by QGL2PaintEngineExPrivate::drawTexture(), QGL2PaintEngineExPrivate::prepareForDraw(), and QGL2PaintEngineExPrivate::updateBrushUniforms().

 {
     if (currentShaderProg)
         return currentShaderProg->program;
     else
         return sharedShaders->simpleProgram();
 }

◆ getUniformLocation()

GLuint QGLEngineShaderManager::getUniformLocation ( Uniform id )

Definition at line 476 of file qglengineshadermanager.cpp.

 {
     if (!currentShaderProg)
         return 0;
 
     QVector<uint> &uniformLocations = currentShaderProg->uniformLocations;
     if (uniformLocations.isEmpty())
         uniformLocations.fill(GLuint(-1), NumUniforms);
 
     static const char *uniformNames[] = {
         "imageTexture",
         "patternColor",
         "globalOpacity",
         "depth",
         "maskTexture",
         "fragmentColor",
         "linearData",
         "angle",
         "halfViewportSize",
         "fmp",
         "fmp2_m_radius2",
         "inverse_2_fmp2_m_radius2",
         "sqrfr",
         "bradius",
         "invertedTextureSize",
         "brushTransform",
         "brushTexture",
         "matrix"
     };
 
     if (uniformLocations.at(id) == GLuint(-1))
         uniformLocations[id] = currentShaderProg->program->uniformLocation(uniformNames[id]);
 
     return uniformLocations.at(id);
 }

◆ hasComplexGeometry()

bool QGLEngineShaderManager::hasComplexGeometry ( ) const

inline

Definition at line 484 of file qglengineshadermanager_p.h.

Referenced by QGL2PaintEngineExPrivate::prepareForDraw().

     {
         return complexGeometry;
     }

◆ optimiseForBrushTransform()

void QGLEngineShaderManager::optimiseForBrushTransform ( QTransform::TransformationType transformType )

Definition at line 513 of file qglengineshadermanager.cpp.

Referenced by QGL2PaintEngineExPrivate::setBrush().

 {
     Q_UNUSED(transformType); // Currently ignored
 }

◆ removeCustomStage()

void QGLEngineShaderManager::removeCustomStage ( )

Definition at line 577 of file qglengineshadermanager.cpp.

Referenced by setCustomStage(), and ~QGLEngineShaderManager().

 {
     if (customSrcStage)
         customSrcStage->setInactive();
     customSrcStage = 0;
     shaderProgNeedsChanging = true;
 }

◆ setCompositionMode()

void QGLEngineShaderManager::setCompositionMode ( QPainter::CompositionMode mode )

Definition at line 560 of file qglengineshadermanager.cpp.

 {
     if (compositionMode == mode)
         return;
 
     compositionMode = mode;
     shaderProgNeedsChanging = true; //###
 }

◆ setCustomStage()

void QGLEngineShaderManager::setCustomStage ( QGLCustomShaderStage * stage )

Definition at line 569 of file qglengineshadermanager.cpp.

 {
     if (customSrcStage)
         removeCustomStage();
     customSrcStage = stage;
     shaderProgNeedsChanging = true;
 }

◆ setDirty()

void QGLEngineShaderManager::setDirty ( )

Definition at line 518 of file qglengineshadermanager.cpp.

 {
     shaderProgNeedsChanging = true;
 }

◆ setHasComplexGeometry()

void QGLEngineShaderManager::setHasComplexGeometry ( bool hasComplexGeometry )

inline

Definition at line 479 of file qglengineshadermanager_p.h.

Referenced by QGL2PaintEngineExPrivate::transferMode().

     {
         complexGeometry = hasComplexGeometry;
         shaderProgNeedsChanging = true;
     }

◆ setMaskType()

void QGLEngineShaderManager::setMaskType ( MaskType type )

Definition at line 551 of file qglengineshadermanager.cpp.

Referenced by QGL2PaintEngineExPrivate::transferMode().

 {
     if (maskType == type)
         return;
 
     maskType = type;
     shaderProgNeedsChanging = true; //###
 }

◆ setOpacityMode()

void QGLEngineShaderManager::setOpacityMode ( OpacityMode mode )

Definition at line 542 of file qglengineshadermanager.cpp.

Referenced by QGL2PaintEngineExPrivate::prepareForDraw().

 {
     if (opacityMode == mode)
         return;
 
     opacityMode = mode;
     shaderProgNeedsChanging = true; //###
 }

◆ setSrcPixelType() [1/2]

void QGLEngineShaderManager::setSrcPixelType ( Qt::BrushStyle style )

Definition at line 523 of file qglengineshadermanager.cpp.

Referenced by QGL2PaintEngineExPrivate::drawTexture(), and QGL2PaintEngineExPrivate::setBrush().

 {
     Q_ASSERT(style != Qt::NoBrush);
     if (srcPixelType == PixelSrcType(style))
         return;
 
     srcPixelType = style;
     shaderProgNeedsChanging = true; //###
 }

◆ setSrcPixelType() [2/2]

void QGLEngineShaderManager::setSrcPixelType ( PixelSrcType type )

Definition at line 533 of file qglengineshadermanager.cpp.

 {
     if (srcPixelType == type)
         return;
 
     srcPixelType = type;
     shaderProgNeedsChanging = true; //###
 }

◆ simpleProgram()

QGLShaderProgram * QGLEngineShaderManager::simpleProgram ( )

Definition at line 613 of file qglengineshadermanager.cpp.

 {
     return sharedShaders->simpleProgram();
 }

◆ useBlitProgram()

void QGLEngineShaderManager::useBlitProgram ( )

Definition at line 603 of file qglengineshadermanager.cpp.

Referenced by QGLTextureGlyphCache::resizeTextureData().

 {
     sharedShaders->blitProgram()->bind();
     QGLContextPrivate* ctx_d = ctx->d_func();
     ctx_d->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, true);
     ctx_d->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, true);
     ctx_d->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, false);
     shaderProgNeedsChanging = true;
 }

◆ useCorrectShaderProg()

bool QGLEngineShaderManager::useCorrectShaderProg ( )

Definition at line 627 of file qglengineshadermanager.cpp.

Referenced by QGL2PaintEngineExPrivate::prepareForDraw().

 {
     if (!shaderProgNeedsChanging)
         return false;
 
     bool useCustomSrc = customSrcStage != 0;
     if (useCustomSrc && srcPixelType != QGLEngineShaderManager::ImageSrc && srcPixelType != Qt::TexturePattern) {
         useCustomSrc = false;
         qWarning("QGLEngineShaderManager - Ignoring custom shader stage for non image src");
     }
 
     QGLEngineShaderProg requiredProgram;
 
     bool texCoords = false;
 
     // Choose vertex shader shader position function (which typically also sets
     // varyings) and the source pixel (srcPixel) fragment shader function:
     requiredProgram.positionVertexShader = QGLEngineSharedShaders::InvalidSnippetName;
     requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::InvalidSnippetName;
     bool isAffine = brushTransform.isAffine();
     if ( (srcPixelType >= Qt::Dense1Pattern) && (srcPixelType <= Qt::DiagCrossPattern) ) {
         if (isAffine)
             requiredProgram.positionVertexShader = QGLEngineSharedShaders::AffinePositionWithPatternBrushVertexShader;
         else
             requiredProgram.positionVertexShader = QGLEngineSharedShaders::PositionWithPatternBrushVertexShader;
 
         requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::PatternBrushSrcFragmentShader;
     }
     else switch (srcPixelType) {
         default:
         case Qt::NoBrush:
             qFatal("QGLEngineShaderManager::useCorrectShaderProg() - Qt::NoBrush style is set");
             break;
         case QGLEngineShaderManager::ImageSrc:
             requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::ImageSrcFragmentShader;
             requiredProgram.positionVertexShader = QGLEngineSharedShaders::PositionOnlyVertexShader;
             texCoords = true;
             break;
         case QGLEngineShaderManager::NonPremultipliedImageSrc:
             requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::NonPremultipliedImageSrcFragmentShader;
             requiredProgram.positionVertexShader = QGLEngineSharedShaders::PositionOnlyVertexShader;
             texCoords = true;
             break;
         case QGLEngineShaderManager::PatternSrc:
             requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::ImageSrcWithPatternFragmentShader;
             requiredProgram.positionVertexShader = QGLEngineSharedShaders::PositionOnlyVertexShader;
             texCoords = true;
             break;
         case QGLEngineShaderManager::TextureSrcWithPattern:
             requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::TextureBrushSrcWithPatternFragmentShader;
             requiredProgram.positionVertexShader = isAffine ? QGLEngineSharedShaders::AffinePositionWithTextureBrushVertexShader
                                                 : QGLEngineSharedShaders::PositionWithTextureBrushVertexShader;
             break;
         case Qt::SolidPattern:
             requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::SolidBrushSrcFragmentShader;
             requiredProgram.positionVertexShader = QGLEngineSharedShaders::PositionOnlyVertexShader;
             break;
         case Qt::LinearGradientPattern:
             requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::LinearGradientBrushSrcFragmentShader;
             requiredProgram.positionVertexShader = isAffine ? QGLEngineSharedShaders::AffinePositionWithLinearGradientBrushVertexShader
                                                 : QGLEngineSharedShaders::PositionWithLinearGradientBrushVertexShader;
             break;
         case Qt::ConicalGradientPattern:
             requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::ConicalGradientBrushSrcFragmentShader;
             requiredProgram.positionVertexShader = isAffine ? QGLEngineSharedShaders::AffinePositionWithConicalGradientBrushVertexShader
                                                 : QGLEngineSharedShaders::PositionWithConicalGradientBrushVertexShader;
             break;
         case Qt::RadialGradientPattern:
             requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::RadialGradientBrushSrcFragmentShader;
             requiredProgram.positionVertexShader = isAffine ? QGLEngineSharedShaders::AffinePositionWithRadialGradientBrushVertexShader
                                                 : QGLEngineSharedShaders::PositionWithRadialGradientBrushVertexShader;
             break;
         case Qt::TexturePattern:
             requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::TextureBrushSrcFragmentShader;
             requiredProgram.positionVertexShader = isAffine ? QGLEngineSharedShaders::AffinePositionWithTextureBrushVertexShader
                                                 : QGLEngineSharedShaders::PositionWithTextureBrushVertexShader;
             break;
     };
 
     if (useCustomSrc) {
         requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::CustomImageSrcFragmentShader;
         requiredProgram.customStageSource = customSrcStage->source();
     }
 
     const bool hasCompose = compositionMode > QPainter::CompositionMode_Plus;
     const bool hasMask = maskType != QGLEngineShaderManager::NoMask;
 
     // Choose fragment shader main function:
     if (opacityMode == AttributeOpacity) {
         Q_ASSERT(!hasCompose && !hasMask);
         requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_ImageArrays;
     } else {
         bool useGlobalOpacity = (opacityMode == UniformOpacity);
         if (hasCompose && hasMask && useGlobalOpacity)
             requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_CMO;
         if (hasCompose && hasMask && !useGlobalOpacity)
             requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_CM;
         if (!hasCompose && hasMask && useGlobalOpacity)
             requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_MO;
         if (!hasCompose && hasMask && !useGlobalOpacity)
             requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_M;
         if (hasCompose && !hasMask && useGlobalOpacity)
             requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_CO;
         if (hasCompose && !hasMask && !useGlobalOpacity)
             requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_C;
         if (!hasCompose && !hasMask && useGlobalOpacity)
             requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_O;
         if (!hasCompose && !hasMask && !useGlobalOpacity)
             requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader;
     }
 
     if (hasMask) {
         if (maskType == PixelMask) {
             requiredProgram.maskFragShader = QGLEngineSharedShaders::MaskFragmentShader;
             texCoords = true;
         } else if (maskType == SubPixelMaskPass1) {
             requiredProgram.maskFragShader = QGLEngineSharedShaders::RgbMaskFragmentShaderPass1;
             texCoords = true;
         } else if (maskType == SubPixelMaskPass2) {
             requiredProgram.maskFragShader = QGLEngineSharedShaders::RgbMaskFragmentShaderPass2;
             texCoords = true;
         } else if (maskType == SubPixelWithGammaMask) {
             requiredProgram.maskFragShader = QGLEngineSharedShaders::RgbMaskWithGammaFragmentShader;
             texCoords = true;
         } else {
             qCritical("QGLEngineShaderManager::useCorrectShaderProg() - Unknown mask type");
         }
     } else {
         requiredProgram.maskFragShader = QGLEngineSharedShaders::NoMaskFragmentShader;
     }
 
     if (hasCompose) {
         switch (compositionMode) {
             case QPainter::CompositionMode_Multiply:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::MultiplyCompositionModeFragmentShader;
                 break;
             case QPainter::CompositionMode_Screen:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::ScreenCompositionModeFragmentShader;
                 break;
             case QPainter::CompositionMode_Overlay:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::OverlayCompositionModeFragmentShader;
                 break;
             case QPainter::CompositionMode_Darken:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::DarkenCompositionModeFragmentShader;
                 break;
             case QPainter::CompositionMode_Lighten:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::LightenCompositionModeFragmentShader;
                 break;
             case QPainter::CompositionMode_ColorDodge:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::ColorDodgeCompositionModeFragmentShader;
                 break;
             case QPainter::CompositionMode_ColorBurn:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::ColorBurnCompositionModeFragmentShader;
                 break;
             case QPainter::CompositionMode_HardLight:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::HardLightCompositionModeFragmentShader;
                 break;
             case QPainter::CompositionMode_SoftLight:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::SoftLightCompositionModeFragmentShader;
                 break;
             case QPainter::CompositionMode_Difference:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::DifferenceCompositionModeFragmentShader;
                 break;
             case QPainter::CompositionMode_Exclusion:
                 requiredProgram.compositionFragShader = QGLEngineSharedShaders::ExclusionCompositionModeFragmentShader;
                 break;
             default:
                 qWarning("QGLEngineShaderManager::useCorrectShaderProg() - Unsupported composition mode");
         }
     } else {
         requiredProgram.compositionFragShader = QGLEngineSharedShaders::NoCompositionModeFragmentShader;
     }
 
     // Choose vertex shader main function
     if (opacityMode == AttributeOpacity) {
         Q_ASSERT(texCoords);
         requiredProgram.mainVertexShader = QGLEngineSharedShaders::MainWithTexCoordsAndOpacityVertexShader;
     } else if (texCoords) {
         requiredProgram.mainVertexShader = QGLEngineSharedShaders::MainWithTexCoordsVertexShader;
     } else {
         requiredProgram.mainVertexShader = QGLEngineSharedShaders::MainVertexShader;
     }
     requiredProgram.useTextureCoords = texCoords;
     requiredProgram.useOpacityAttribute = (opacityMode == AttributeOpacity);
     if (complexGeometry && srcPixelType == Qt::SolidPattern) {
         requiredProgram.positionVertexShader = QGLEngineSharedShaders::ComplexGeometryPositionOnlyVertexShader;
         requiredProgram.usePmvMatrixAttribute = false;
     } else {
         requiredProgram.usePmvMatrixAttribute = true;
 
         // Force complexGeometry off, since we currently don't support that mode for
         // non-solid brushes
         complexGeometry = false;
     }
 
     // At this point, requiredProgram is fully populated so try to find the program in the cache
     currentShaderProg = sharedShaders->findProgramInCache(requiredProgram);
 
     if (currentShaderProg && useCustomSrc) {
         customSrcStage->setUniforms(currentShaderProg->program);
     }
 
     // Make sure all the vertex attribute arrays the program uses are enabled (and the ones it
     // doesn't use are disabled)
     QGLContextPrivate* ctx_d = ctx->d_func();
     ctx_d->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, true);
     ctx_d->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, currentShaderProg && currentShaderProg->useTextureCoords);
     ctx_d->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, currentShaderProg && currentShaderProg->useOpacityAttribute);
 
     shaderProgNeedsChanging = false;
     return true;
 }

◆ useSimpleProgram()

void QGLEngineShaderManager::useSimpleProgram ( )

Definition at line 593 of file qglengineshadermanager.cpp.

Referenced by QGL2PaintEngineExPrivate::useSimpleShader().

 {
     sharedShaders->simpleProgram()->bind();
     QGLContextPrivate* ctx_d = ctx->d_func();
     ctx_d->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, true);
     ctx_d->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, false);
     ctx_d->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, false);
     shaderProgNeedsChanging = true;
 }