Ogre::ImageCodec Class Reference
[Image]

Codec specialized in images. More...

#include <OgreImageCodec.h>

Inheritance diagram for Ogre::ImageCodec:

[legend]

List of all members.

Classes
class	ImageData
	Codec return class for images. More...
Public Types
typedef SharedPtr< CodecData >	CodecDataPtr
typedef ConstMapIterator < CodecList >	CodecIterator
typedef std::pair < MemoryDataStreamPtr, CodecDataPtr >	DecodeResult
	Result of a decoding; both a decoded data stream and CodecData metadata.
Public Member Functions
virtual	~ImageCodec ()
String	getDataType () const
	Returns the type of the data that supported by this codec as a String.
virtual DataStreamPtr	code (MemoryDataStreamPtr &input, CodecDataPtr &pData) const =0
	Codes the data in the input stream and saves the result in the output stream.
virtual void	codeToFile (MemoryDataStreamPtr &input, const String &outFileName, CodecDataPtr &pData) const =0
	Codes the data in the input chunk and saves the result in the output filename provided.
virtual DecodeResult	decode (DataStreamPtr &input) const =0
	Codes the data from the input chunk into the output chunk.
virtual String	getType () const =0
	Returns the type of the codec as a String.
virtual bool	magicNumberMatch (const char *magicNumberPtr, size_t maxbytes) const
	Returns whether a magic number header matches this codec.
virtual String	magicNumberToFileExt (const char *magicNumberPtr, size_t maxbytes) const =0
	Maps a magic number header to a file extension, if this codec recognises it.
void *	operator new (size_t sz, const char *file, int line, const char *func)
	operator new, with debug line info
void *	operator new (size_t sz)
void *	operator new (size_t sz, void *ptr)
	placement operator new
void *	operator new[] (size_t sz, const char *file, int line, const char *func)
	array operator new, with debug line info
void *	operator new[] (size_t sz)
void	operator delete (void *ptr)
void	operator delete (void *ptr, void *)
void	operator delete (void *ptr, const char *, int, const char *)
void	operator delete[] (void *ptr)
void	operator delete[] (void *ptr, const char *, int, const char *)
Static Public Member Functions
static void	registerCodec (Codec *pCodec)
	Registers a new codec in the database.
static bool	isCodecRegistered (const String &codecType)
	Return whether a codec is registered already.
static void	unRegisterCodec (Codec *pCodec)
	Unregisters a codec from the database.
static CodecIterator	getCodecIterator (void)
	Gets the iterator for the registered codecs.
static StringVector	getExtensions (void)
	Gets the file extension list for the registered codecs.
static Codec *	getCodec (const String &extension)
	Gets the codec registered for the passed in file extension.
static Codec *	getCodec (char *magicNumberPtr, size_t maxbytes)
	Gets the codec that can handle the given 'magic' identifier.
Protected Types
typedef map< String, Codec * > ::type	CodecList
Static Protected Attributes
static CodecList	msMapCodecs
	A map that contains all the registered codecs.

---

Detailed Description

Codec specialized in images.

Remarks:

The users implementing subclasses of ImageCodec are required to return a valid pointer to a ImageData class from the decode(...) function.

Definition at line 47 of file OgreImageCodec.h.

---

Member Typedef Documentation

typedef SharedPtr<CodecData> Ogre::Codec::CodecDataPtr [inherited]

Definition at line 73 of file OgreCodec.h.

typedef ConstMapIterator<CodecList> Ogre::Codec::CodecIterator [inherited]

Definition at line 75 of file OgreCodec.h.

typedef map< String, Codec* >::type Ogre::Codec::CodecList [protected, inherited]

Definition at line 58 of file OgreCodec.h.

typedef std::pair<MemoryDataStreamPtr, CodecDataPtr> Ogre::Codec::DecodeResult [inherited]

Result of a decoding; both a decoded data stream and CodecData metadata.

Definition at line 140 of file OgreCodec.h.

---

Constructor & Destructor Documentation

virtual Ogre::ImageCodec::~ImageCodec

(

)

[virtual]

---

Member Function Documentation

virtual DataStreamPtr Ogre::Codec::code	(	MemoryDataStreamPtr &	input,
		CodecDataPtr &	pData
	)			const [pure virtual, inherited]

Codes the data in the input stream and saves the result in the output stream.

Implemented in Ogre::DDSCodec, Ogre::FreeImageCodec, and Ogre::PVRTCCodec.

virtual void Ogre::Codec::codeToFile	(	MemoryDataStreamPtr &	input,
		const String &	outFileName,
		CodecDataPtr &	pData
	)			const [pure virtual, inherited]

Codes the data in the input chunk and saves the result in the output filename provided.

Provided for efficiency since coding to memory is progressive therefore memory required is unknown leading to reallocations.

Parameters:

	input	The input data
	outFileName	The filename to write to
	pData	Extra information to be passed to the codec (codec type specific)

Implemented in Ogre::DDSCodec, Ogre::FreeImageCodec, and Ogre::PVRTCCodec.

virtual DecodeResult Ogre::Codec::decode

(

DataStreamPtr &

input

)

const [pure virtual, inherited]

Codes the data from the input chunk into the output chunk.

Parameters:

input

Stream containing the encoded data

Note:

Has a variable number of arguments, which depend on the codec type.

Implemented in Ogre::DDSCodec, Ogre::FreeImageCodec, and Ogre::PVRTCCodec.

static Codec* Ogre::Codec::getCodec	(	char *	magicNumberPtr,
		size_t	maxbytes
	)			[static, inherited]

Gets the codec that can handle the given 'magic' identifier.

Parameters:

	magicNumberPtr	Pointer to a stream of bytes which should identify the file. Note that this may be more than needed - each codec may be looking for a different size magic number.
	maxbytes	The number of bytes passed

static Codec* Ogre::Codec::getCodec

(

const String &

extension

)

[static, inherited]

Gets the codec registered for the passed in file extension.

static CodecIterator Ogre::Codec::getCodecIterator

(

void

)

[static, inherited]

Gets the iterator for the registered codecs.

Definition at line 107 of file OgreCodec.h.

String Ogre::ImageCodec::getDataType

(

)

const [virtual]

Returns the type of the data that supported by this codec as a String.

Implements Ogre::Codec.

Definition at line 79 of file OgreImageCodec.h.

static StringVector Ogre::Codec::getExtensions

(

void

)

[static, inherited]

Gets the file extension list for the registered codecs.

virtual String Ogre::Codec::getType

(

)

const [pure virtual, inherited]

Returns the type of the codec as a String.

Implemented in Ogre::DDSCodec, Ogre::FreeImageCodec, and Ogre::PVRTCCodec.

Referenced by Ogre::Codec::registerCodec(), and Ogre::Codec::unRegisterCodec().

static bool Ogre::Codec::isCodecRegistered

(

const String &

codecType

)

[static, inherited]

Return whether a codec is registered already.

Definition at line 94 of file OgreCodec.h.

virtual bool Ogre::Codec::magicNumberMatch	(	const char *	magicNumberPtr,
		size_t	maxbytes
	)			const [virtual, inherited]

Returns whether a magic number header matches this codec.

Parameters:

	magicNumberPtr	Pointer to a stream of bytes which should identify the file. Note that this may be more than needed - each codec may be looking for a different size magic number.
	maxbytes	The number of bytes passed

Definition at line 162 of file OgreCodec.h.

virtual String Ogre::Codec::magicNumberToFileExt	(	const char *	magicNumberPtr,
		size_t	maxbytes
	)			const [pure virtual, inherited]

Maps a magic number header to a file extension, if this codec recognises it.

Parameters:

	magicNumberPtr	Pointer to a stream of bytes which should identify the file. Note that this may be more than needed - each codec may be looking for a different size magic number.
	maxbytes	The number of bytes passed

Returns:

A blank string if the magic number was unknown, or a file extension.

Implemented in Ogre::DDSCodec, Ogre::FreeImageCodec, and Ogre::PVRTCCodec.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete	(	void *	ptr,
		const char *	,
		int	,
		const char *
	)			[inherited]

Definition at line 107 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete	(	void *	ptr,
		void *
	)			[inherited]

Definition at line 101 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete

(

void *

ptr

)

[inherited]

Definition at line 95 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[]	(	void *	ptr,
		const char *	,
		int	,
		const char *
	)			[inherited]

Definition at line 118 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[]

(

void *

ptr

)

[inherited]

Definition at line 112 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new	(	size_t	sz,
		void *	ptr
	)			[inherited]

placement operator new

Definition at line 78 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new

(

size_t

sz

)

[inherited]

Definition at line 72 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new	(	size_t	sz,
		const char *	file,
		int	line,
		const char *	func
	)			[inherited]

operator new, with debug line info

Definition at line 67 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[]

(

size_t

sz

)

[inherited]

Definition at line 90 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[]	(	size_t	sz,
		const char *	file,
		int	line,
		const char *	func
	)			[inherited]

array operator new, with debug line info

Definition at line 85 of file OgreMemoryAllocatedObject.h.

static void Ogre::Codec::registerCodec

(

Codec *

pCodec

)

[static, inherited]

Registers a new codec in the database.

Definition at line 82 of file OgreCodec.h.

References Ogre::Exception::ERR_DUPLICATE_ITEM, and Ogre::Codec::getType().

static void Ogre::Codec::unRegisterCodec

(

Codec *

pCodec

)

[static, inherited]

Unregisters a codec from the database.

Definition at line 101 of file OgreCodec.h.

References Ogre::Codec::getType().

---

Member Data Documentation

CodecList Ogre::Codec::msMapCodecs [static, protected, inherited]

A map that contains all the registered codecs.

Definition at line 61 of file OgreCodec.h.

---

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

• OgreImageCodec.h