OGRE-Next  3.0.0unstable
Object-Oriented Graphics Rendering Engine
Ogre::TextureDefinitionBase Class Reference

Centralized class for dealing with declarations of textures in Node & Workspace definitions. More...

#include <OgreTextureDefinition.h>

+ Inheritance diagram for Ogre::TextureDefinitionBase:

Classes

struct  BufferDefinition
 
class  TextureDefinition
 Local texture definition. More...
 

Public Types

typedef vector< BufferDefinition >::type BufferDefinitionVec
 
typedef vector< PixelFormatGpu >::type PixelFormatGpuVec
 
typedef vector< TextureDefinition >::type TextureDefinitionVec
 
enum  TextureSource { TEXTURE_INPUT , TEXTURE_LOCAL , TEXTURE_GLOBAL , NUM_TEXTURES_SOURCES }
 

Public Member Functions

 TextureDefinitionBase (TextureSource defaultSource)
 
void addBufferDefinition (IdString name, size_t numElements, uint32 bytesPerElement, uint32 bindFlags, float widthFactor, float heightFactor)
 Creates an UAV buffer. More...
 
virtual void addBufferInput (size_t inputChannel, IdString name)
 Buffers. More...
 
RenderTargetViewDefaddRenderTextureView (IdString name)
 
TextureDefinitionaddTextureDefinition (const String &name)
 Creates a TextureDefinition with a given name, must be unique. More...
 
virtual IdString addTextureSourceName (const String &name, size_t index, TextureSource textureSource)
 Adds a texture name, whether a real one or an alias, and where to grab it from. More...
 
const BufferDefinitionVecgetLocalBufferDefinitions () const
 
BufferDefinitionVecgetLocalBufferDefinitionsNonConst ()
 Returns the local buffer definitions. More...
 
const TextureDefinitionVecgetLocalTextureDefinitions () const
 
TextureDefinitionVecgetLocalTextureDefinitionsNonConst ()
 Returns the local texture definitions. More...
 
const NameToChannelMap & getNameToChannelMap () const
 
size_t getNumInputBufferChannels () const
 
size_t getNumInputChannels () const
 This has O(N) complexity! (not cached, we look in mNameToChannelMap) More...
 
const RenderTargetViewDefgetRenderTargetViewDef (IdString name) const
 
RenderTargetViewDefgetRenderTargetViewDefNonConstNoThrow (IdString name)
 
void getTextureSource (IdString name, size_t &index, TextureSource &textureSource) const
 Retrieves in which container to look for when looking to which texture is a given name associated with. More...
 
void removeAllRenderTextureViews ()
 
virtual void removeBuffer (IdString name)
 Remove a buffer. Buffer can come from an input channel, or a locally defined one. More...
 
void removeRenderTextureView (IdString name)
 
virtual void removeTexture (IdString name)
 WARNING: Be very careful with this function. More...
 
void renameBuffer (IdString oldName, const String &newName)
 Changes the name of a buffer. More...
 
void renameTexture (IdString oldName, const String &newName)
 Changes the name of a texture. More...
 
void setNumLocalBufferDefinitions (size_t numTDs)
 Reserves enough memory for all texture definitions. More...
 
void setNumLocalTextureDefinitions (size_t numTDs)
 Reserves enough memory for all texture definitions. More...
 

Static Public Member Functions

static UavBufferPackedcreateBuffer (const BufferDefinition &bufferDef, const TextureGpu *finalTarget, VaoManager *vaoManager)
 
static void createBuffers (const BufferDefinitionVec &bufferDefs, CompositorNamedBufferVec &inOutBufContainer, const TextureGpu *finalTarget, RenderSystem *renderSys)
 Utility function to create the buffers based on a given set of buffer definitions and put them in a container. More...
 
static CompositorChannel createTexture (const TextureDefinition &textureDef, const String &texName, const TextureGpu *finalTarget, RenderSystem *renderSys)
 
static void createTextures (const TextureDefinitionVec &textureDefs, CompositorChannelVec &inOutTexContainer, IdType id, const TextureGpu *finalTarget, RenderSystem *renderSys)
 Utility function to create the textures based on a given set of texture definitions and put them in a container. More...
 
static void destroyBuffers (const BufferDefinitionVec &bufferDefs, CompositorNamedBufferVec &inOutBufContainer, RenderSystem *renderSys)
 
static void destroyTextures (CompositorChannelVec &inOutTexContainer, RenderSystem *renderSys)
 
static void recreateResizableBuffers (const BufferDefinitionVec &bufferDefs, CompositorNamedBufferVec &inOutBufContainer, const TextureGpu *finalTarget, RenderSystem *renderSys, const CompositorNodeVec &connectedNodes, const CompositorPassVec *passes)
 Destroys & recreates only the buffers that depend on the main RT (i.e. More...
 
static void recreateResizableTextures01 (const TextureDefinitionVec &textureDefs, CompositorChannelVec &inOutTexContainer, const TextureGpu *finalTarget)
 Destroys & recreates only the textures that depend on the main RT (e.g. More...
 
static void recreateResizableTextures02 (const TextureDefinitionVec &textureDefs, CompositorChannelVec &inOutTexContainer, const CompositorNodeVec &connectedNodes, const CompositorPassVec *passes)
 See recreateResizableTextures01 Updates involved RenderPassDescriptors. More...
 
static void setupTexture (TextureGpu *tex, const TextureDefinition &textureDef, const TextureGpu *finalTarget)
 

Detailed Description

Centralized class for dealing with declarations of textures in Node & Workspace definitions.

Note that shadow nodes use their own system

Author
Matias N. Goldberg
Version
1.0

Member Typedef Documentation

◆ BufferDefinitionVec

◆ PixelFormatGpuVec

◆ TextureDefinitionVec

Member Enumeration Documentation

◆ TextureSource

Enumerator
TEXTURE_INPUT 

We got the texture through an input channel.

TEXTURE_LOCAL 

We own the texture.

TEXTURE_GLOBAL 

It's a global texture. Ask the manager for it.

NUM_TEXTURES_SOURCES 

Constructor & Destructor Documentation

◆ TextureDefinitionBase()

Ogre::TextureDefinitionBase::TextureDefinitionBase ( TextureSource  defaultSource)

Member Function Documentation

◆ addBufferDefinition()

void Ogre::TextureDefinitionBase::addBufferDefinition ( IdString  name,
size_t  numElements,
uint32  bytesPerElement,
uint32  bindFlags,
float  widthFactor,
float  heightFactor 
)

Creates an UAV buffer.

Parameters
nameName to give to this buffer for referencing it locally from this scope. Duplicate names (including names from addBufferInput) will raise an exception when trying to instantiate the workspace.
bindFlagsBitmask.
See also
BufferBindFlags
Parameters
widthFactor
See also
BufferDefinition::widthFactor
Parameters
heightFactor
See also
BufferDefinition::widthFactor

◆ addBufferInput()

virtual void Ogre::TextureDefinitionBase::addBufferInput ( size_t  inputChannel,
IdString  name 
)
virtual

Buffers.

Specifies that buffer incoming from channel 'inputChannel' will be referenced by the name 'name'

Remarks
Don't leave gaps. (i.e. set channel 0 & 2, without setting channel 1) It's ok to map them out of order (i.e. set channel 2, then 0, then 1)
Parameters
inputChannelInput channel # the buffer comes from.
nameName to give to this buffer for referencing it locally from this scope. Duplicate names (including names from addBufferDefinition) will raise an exception when trying to instantiate the workspace.

Reimplemented in Ogre::CompositorShadowNodeDef.

◆ addRenderTextureView()

RenderTargetViewDef* Ogre::TextureDefinitionBase::addRenderTextureView ( IdString  name)

◆ addTextureDefinition()

TextureDefinition* Ogre::TextureDefinitionBase::addTextureDefinition ( const String name)

Creates a TextureDefinition with a given name, must be unique.

Remarks
WARNING: Calling this function may invalidate all previous returned pointers unless you've properly called setLocalTextureDefinitions
See addTextureSourceName() remarks for what it can throw
Textures are local when the derived class is a Node definition, and it's global when the derived class is a Workspace definition
Parameters
nameThe name of the texture. Names are usually valid only throughout this node. We need the name, not its hash because we need to validate the global_ prefix is used correctly.

◆ addTextureSourceName()

virtual IdString Ogre::TextureDefinitionBase::addTextureSourceName ( const String name,
size_t  index,
TextureSource  textureSource 
)
virtual

Adds a texture name, whether a real one or an alias, and where to grab it from.

Remarks
Throws if a texture with same name already exists, or if the name makes improper usage of the 'global' prefix.
This is a generic way to add input channels, by calling:
addTextureSourceName( "myRT", 0, TextureDefinitionBase::TEXTURE_INPUT );
You're assigning an alias named "myRT" to channel Input #0 For local or global textures, the index parameter documentation
Parameters
nameThe name of the texture. Names are usually valid only throughout this node. We need the name, not its hash because we need to validate the global_ prefix is used correctly.
indexIndex in the container where the texture is located, eg. this->mLocalTextureDefs[index] for local textures, workspace->mLocalTextureDefs[index] for global textures, and this->mInTextures[index] for input channels.
textureSourceSource where the index must be used (eg. TEXTURE_LOCAL means mLocalTextureDefs)
Returns
IdString of the fullName paremeter, for convenience

Reimplemented in Ogre::CompositorShadowNodeDef.

◆ createBuffer()

static UavBufferPacked* Ogre::TextureDefinitionBase::createBuffer ( const BufferDefinition bufferDef,
const TextureGpu finalTarget,
VaoManager vaoManager 
)
static

◆ createBuffers()

static void Ogre::TextureDefinitionBase::createBuffers ( const BufferDefinitionVec bufferDefs,
CompositorNamedBufferVec inOutBufContainer,
const TextureGpu finalTarget,
RenderSystem renderSys 
)
static

Utility function to create the buffers based on a given set of buffer definitions and put them in a container.

Remarks
Useful because both Workspace & CompositorNode share the same functionality (create global/local buffers respectively) without having to create a whole base class just for one function. It's confusing that Nodes & Workspace would share the same base class, as if they were the same base object or share similar functionality (when in fact, workspace manages nodes)

◆ createTexture()

static CompositorChannel Ogre::TextureDefinitionBase::createTexture ( const TextureDefinition textureDef,
const String texName,
const TextureGpu finalTarget,
RenderSystem renderSys 
)
static

◆ createTextures()

static void Ogre::TextureDefinitionBase::createTextures ( const TextureDefinitionVec textureDefs,
CompositorChannelVec inOutTexContainer,
IdType  id,
const TextureGpu finalTarget,
RenderSystem renderSys 
)
static

Utility function to create the textures based on a given set of texture definitions and put them in a container.

Remarks
Useful because both Workspace & CompositorNode share the same functionality (create global/local textures respectively) without having to create a whole base class just for one function. It's confusing that Nodes & Workspace would share the same base class, as if they were the same base object or share similar functionality (when in fact, workspace manages nodes)
Parameters
textureDefsArray of texture definitions
inOutTexContainerWhere we'll store the newly created RTs & textures
idUnique id in the case we want textures to have unique names (uniqueNames must be true)
uniqueNamesSet to true if each RT will have a unique name based on given Id, or we don't. The latter is useful for global textures (let them get access through materials)
finalTargetThe final render target (usually the render window) we have to clone parameters from (eg. when using auto width & height, or fsaa settings)
renderSysThe RenderSystem to use

◆ destroyBuffers()

static void Ogre::TextureDefinitionBase::destroyBuffers ( const BufferDefinitionVec bufferDefs,
CompositorNamedBufferVec inOutBufContainer,
RenderSystem renderSys 
)
static
See also
createBuffers We need the definition because, unlike textures, the container passed in may contain textures that were not created by us (i.e. global & input textures) that we shouldn't delete. It is illegal for two buffers to have the same name, so it's invalid that a e.g. an input and a local texture would share the same name.

◆ destroyTextures()

static void Ogre::TextureDefinitionBase::destroyTextures ( CompositorChannelVec inOutTexContainer,
RenderSystem renderSys 
)
static
See also
createTextures

◆ getLocalBufferDefinitions()

const BufferDefinitionVec& Ogre::TextureDefinitionBase::getLocalBufferDefinitions ( ) const
inline

◆ getLocalBufferDefinitionsNonConst()

BufferDefinitionVec& Ogre::TextureDefinitionBase::getLocalBufferDefinitionsNonConst ( )
inline

Returns the local buffer definitions.

Remarks
WARNING: Use with care. You should not add/remove elements or change the name
See also
addBufferDefinition,
removeBuffer and
renameBuffer to perform these actions

◆ getLocalTextureDefinitions()

const TextureDefinitionVec& Ogre::TextureDefinitionBase::getLocalTextureDefinitions ( ) const
inline

◆ getLocalTextureDefinitionsNonConst()

TextureDefinitionVec& Ogre::TextureDefinitionBase::getLocalTextureDefinitionsNonConst ( )
inline

Returns the local texture definitions.

Remarks
WARNING: Use with care. You should not add/remove elements or change the name as mNameToChannelMap needs to be kept in sync.
See also
addTextureDefinition,
removeTexture and
renameTexture to perform these actions

◆ getNameToChannelMap()

const NameToChannelMap& Ogre::TextureDefinitionBase::getNameToChannelMap ( ) const
inline

◆ getNumInputBufferChannels()

size_t Ogre::TextureDefinitionBase::getNumInputBufferChannels ( ) const

◆ getNumInputChannels()

size_t Ogre::TextureDefinitionBase::getNumInputChannels ( ) const

This has O(N) complexity! (not cached, we look in mNameToChannelMap)

◆ getRenderTargetViewDef()

const RenderTargetViewDef* Ogre::TextureDefinitionBase::getRenderTargetViewDef ( IdString  name) const

◆ getRenderTargetViewDefNonConstNoThrow()

RenderTargetViewDef* Ogre::TextureDefinitionBase::getRenderTargetViewDefNonConstNoThrow ( IdString  name)

◆ getTextureSource()

void Ogre::TextureDefinitionBase::getTextureSource ( IdString  name,
size_t &  index,
TextureSource textureSource 
) const

Retrieves in which container to look for when looking to which texture is a given name associated with.

Remarks
Throws if name is not found.
Parameters
nameThe name of the texture. Names are usually valid only throughout this node.
index[out] The index at the container in which the texture associated with the output channel is stored
textureSource[out] Where to get this texture from

◆ recreateResizableBuffers()

static void Ogre::TextureDefinitionBase::recreateResizableBuffers ( const BufferDefinitionVec bufferDefs,
CompositorNamedBufferVec inOutBufContainer,
const TextureGpu finalTarget,
RenderSystem renderSys,
const CompositorNodeVec connectedNodes,
const CompositorPassVec passes 
)
static

Destroys & recreates only the buffers that depend on the main RT (i.e.

the RenderWindow) resolution

Parameters
textureDefsArray of texture definitions, so we know which ones depend on main RT's resolution
inOutTexContainerWhere we'll replace the RTs & textures
finalTargetThe final render target (usually the render window) we have to clone parameters from (eg. when using auto width & height, or fsaa settings)
renderSysThe RenderSystem to use
connectedNodesArray of connected nodes that may be using our buffers and need to be notified.
passesArray of Compositor Passes which may contain the texture being recreated When the pointer is null, we don't iterate through it.

◆ recreateResizableTextures01()

static void Ogre::TextureDefinitionBase::recreateResizableTextures01 ( const TextureDefinitionVec textureDefs,
CompositorChannelVec inOutTexContainer,
const TextureGpu finalTarget 
)
static

Destroys & recreates only the textures that depend on the main RT (e.g.

the Render Window) resolution.

Remarks
This is divided in two steps: recreateResizableTextures01 & recreateResizableTextures02 since in some cases in RenderPassDescriptor, setting up MRT and depth textures requires all textures to be up to date, otherwise validation errors would occur since we'll have partial data (e.g. MRT 0 is 1024x768 while MRT 1 is 800x600)
Parameters
textureDefsArray of texture definitions, so we know which ones depend on main RT's resolution
inOutTexContainerWhere we'll replace the RTs & textures
finalTargetThe final render target (usually the render window) we have to clone parameters from (eg. when using auto width & height, or fsaa settings)

◆ recreateResizableTextures02()

static void Ogre::TextureDefinitionBase::recreateResizableTextures02 ( const TextureDefinitionVec textureDefs,
CompositorChannelVec inOutTexContainer,
const CompositorNodeVec connectedNodes,
const CompositorPassVec passes 
)
static

See recreateResizableTextures01 Updates involved RenderPassDescriptors.

Parameters
connectedNodesArray of connected nodes that may be using our textures and need to be notified.
passesArray of Compositor Passes which may contain the texture being recreated When the pointer is null, we don't iterate through it.

◆ removeAllRenderTextureViews()

void Ogre::TextureDefinitionBase::removeAllRenderTextureViews ( )

◆ removeBuffer()

virtual void Ogre::TextureDefinitionBase::removeBuffer ( IdString  name)
virtual

Remove a buffer. Buffer can come from an input channel, or a locally defined one.

◆ removeRenderTextureView()

void Ogre::TextureDefinitionBase::removeRenderTextureView ( IdString  name)

◆ removeTexture()

virtual void Ogre::TextureDefinitionBase::removeTexture ( IdString  name)
virtual

WARNING: Be very careful with this function.

Removes a texture.

  • If the texture is from an input channel (TEXTURE_INPUT), the input channel is removed.
  • If the texture is a local definition (TEXTURE_LOCAL) the texture definition is removed and all the references to mLocalTextureDefs[i+1] ... mLocalTextureDefs[i+n] are updated. However, the output channels will now contain an invalid index and will only be removed if it was the last output channel (since we can't alter the order). It is your responsability to call CompositorNodeDef::mapOutputChannel again with a valid texture name to the channel it was occupying.
  • If the texture is a global texture (TEXTURE_GLOBAL), the global texture can no longer be accessed until addTextureSourceName( name, 0, TEXTURE_GLOBAL ) is called again.
    Parameters
    nameName of the texture to remove.

Reimplemented in Ogre::CompositorNodeDef.

◆ renameBuffer()

void Ogre::TextureDefinitionBase::renameBuffer ( IdString  oldName,
const String newName 
)

Changes the name of a buffer.

Buffer can come from an input channel, or a locally defined one.

◆ renameTexture()

void Ogre::TextureDefinitionBase::renameTexture ( IdString  oldName,
const String newName 
)

Changes the name of a texture.

Texture can come from an input channel, be a global texture, or a locally defined one. You can't rename a global texture to avoid the "global_" prefix, or add the "global_" prefix to a texture that wasn't global.

◆ setNumLocalBufferDefinitions()

void Ogre::TextureDefinitionBase::setNumLocalBufferDefinitions ( size_t  numTDs)
inline

Reserves enough memory for all texture definitions.

Remarks
Calling this function is not obligatory, but recommended
Parameters
numTDsThe number of texture definitions expected to contain.

◆ setNumLocalTextureDefinitions()

void Ogre::TextureDefinitionBase::setNumLocalTextureDefinitions ( size_t  numTDs)
inline

Reserves enough memory for all texture definitions.

Remarks
Calling this function is not obligatory, but recommended
Parameters
numTDsThe number of texture definitions expected to contain.

◆ setupTexture()

static void Ogre::TextureDefinitionBase::setupTexture ( TextureGpu tex,
const TextureDefinition textureDef,
const TextureGpu finalTarget 
)
static

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