Provides custom shader code to the Ganesh shading pipeline. More...

#include <GrProcessor.h>

Inheritance diagram for GrProcessor:

Public Types
enum	RequiredFeatures { kNone_RequiredFeatures = 0, kFragmentPosition_RequiredFeature = 1 << 0, kSampleLocations_RequiredFeature = 1 << 1 }
	Platform specific built-in features that a processor can request for the fragment shader.

Public Member Functions
virtual const char *	name () const =0
	Human-meaningful string to identify this prcoessor; may be embedded in generated shader code. More...

virtual SkString	dumpInfo () const

int	numTextures () const

const GrTextureAccess &	textureAccess (int index) const
	Returns the access pattern for the texture at index. More...

GrTexture *	texture (int index) const
	Shortcut for textureAccess(index).texture();.

int	numBuffers () const

const GrBufferAccess &	bufferAccess (int index) const
	Returns the access pattern for the buffer at index. More...

	GR_DECL_BITFIELD_OPS_FRIENDS (RequiredFeatures)

RequiredFeatures	requiredFeatures () const

void *	operator new (size_t size)

void	operator delete (void *target)

void *	operator new (size_t size, void *placement)

void	operator delete (void target, void placement)

template<typename T >
const T &	cast () const
	Helper for down-casting to a GrProcessor subclass.

uint32_t	classID () const

Public Member Functions inherited from GrProgramElement
void	ref () const

void	unref () const

uint32_t	getUniqueID () const
	Gets an id that is unique for this GrProgramElement object. More...

void	validate () const

Protected Member Functions
virtual void	addTextureAccess (const GrTextureAccess *textureAccess)
	Subclasses call these from their constructor to register sampler sources. More...

virtual void	addBufferAccess (const GrBufferAccess *bufferAccess)

bool	hasSameSamplers (const GrProcessor &) const

void	setWillReadFragmentPosition ()
	If the prcoessor will generate code that uses platform specific built-in features, then it must call these methods from its constructor. More...

void	setWillUseSampleLocations ()

void	combineRequiredFeatures (const GrProcessor &other)

template<typename PROC_SUBCLASS >
void	initClassID ()

Protected Member Functions inherited from GrProgramElement
void	addGpuResource (const GrGpuResourceRef *res)
	Subclasses registers their resources using this function. More...

void	addPendingExecution () const

void	completedExecution () const

Protected Attributes
uint32_t	fClassID

SkSTArray< 4, const GrTextureAccess *, true >	fTextureAccesses

SkSTArray< 2, const GrBufferAccess *, true >	fBufferAccesses

Private Types
enum	{ kIllegalProcessorClassID = 0 }

typedef GrProgramElement	INHERITED

Static Private Member Functions
static uint32_t	GenClassID ()

Private Attributes
RequiredFeatures	fRequiredFeatures

Static Private Attributes
static int32_t	gCurrProcessorClassID

Detailed Description

Provides custom shader code to the Ganesh shading pipeline.

GrProcessor objects must be immutable: after being constructed, their fields may not change.

Dynamically allocated GrProcessors are managed by a per-thread memory pool. The ref count of an processor must reach 0 before the thread terminates and the pool is destroyed.

Member Function Documentation

virtual void GrProcessor::addTextureAccess ( const GrTextureAccess * textureAccess )

protectedvirtual

Subclasses call these from their constructor to register sampler sources.

The processor subclass manages the lifetime of the objects (these functions only store pointers). The GrTextureAccess and/or GrBufferAccess instances are typically member fields of the GrProcessor subclass. These must only be called from the constructor because GrProcessors are immutable.

Reimplemented in GrFragmentProcessor.

const GrBufferAccess& GrProcessor::bufferAccess ( int index ) const

inline

Returns the access pattern for the buffer at index.

index must be valid according to numBuffers().

virtual const char* GrProcessor::name ( ) const

pure virtual

Human-meaningful string to identify this prcoessor; may be embedded in generated shader code.

void GrProcessor::setWillReadFragmentPosition ( )

inlineprotected

If the prcoessor will generate code that uses platform specific built-in features, then it must call these methods from its constructor.

Otherwise, requests to use these features will be denied.

const GrTextureAccess& GrProcessor::textureAccess ( int index ) const

inline

Returns the access pattern for the texture at index.

index must be valid according to numTextures().

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

include/gpu/GrProcessor.h

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Private Types

Static Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Function Documentation