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Ogre::DDSCodec Class Reference

Codec specialized in loading DDS (Direct Draw Surface) images. More...

#include <OgreDDSCodec.h>

Inheritance diagram for Ogre::DDSCodec:

Inheritance graph
[legend]
List of all members.

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

 DDSCodec ()
virtual ~DDSCodec ()
DataStreamPtr code (MemoryDataStreamPtr &input, CodecDataPtr &pData) const
 
void codeToFile (MemoryDataStreamPtr &input, const String &outFileName, CodecDataPtr &pData) const
 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)

DecodeResult decode (DataStreamPtr &input) const
 
Parameters:
input Stream containing the encoded data
Note:
Has a variable number of arguments, which depend on the codec type.

String magicNumberToFileExt (const char *magicNumberPtr, size_t maxbytes) const
 
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.

virtual String getType () const
 Returns the type of the codec as a String.
String getDataType () const
 Returns the type of the data that supported by this codec as a String.
virtual bool magicNumberMatch (const char *magicNumberPtr, size_t maxbytes) const
 Returns whether a magic number header matches this codec.
 AllocatedObject ()
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 startup (void)
 Static method to startup and register the DDS codec.
static void shutdown (void)
 Static method to shutdown and unregister the DDS codec.
static void registerCodec (Codec *pCodec)
 Registers a new codec in the database.
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 CodecgetCodec (const String &extension)
 Gets the codec registered for the passed in file extension.
static CodecgetCodec (char *magicNumberPtr, size_t maxbytes)
 Gets the codec that can handle the given 'magic' identifier.

Protected Types

typedef std::map< String,
Codec * > 
CodecList

Static Protected Attributes

static CodecList ms_mapCodecs
 A map that contains all the registered codecs.

Private Member Functions

void flipEndian (void *pData, size_t size, size_t count) const
void flipEndian (void *pData, size_t size) const
PixelFormat convertFourCCFormat (uint32 fourcc) const
PixelFormat convertPixelFormat (uint32 rgbBits, uint32 rMask, uint32 gMask, uint32 bMask, uint32 aMask) const
void unpackDXTColour (PixelFormat pf, const DXTColourBlock &block, ColourValue *pCol) const
 Unpack DXT colours into array of 16 colour values.
void unpackDXTAlpha (const DXTExplicitAlphaBlock &block, ColourValue *pCol) const
 Unpack DXT alphas into array of 16 colour values.
void unpackDXTAlpha (const DXTInterpolatedAlphaBlock &block, ColourValue *pCol) const
 Unpack DXT alphas into array of 16 colour values.

Private Attributes

String mType

Static Private Attributes

static DDSCodecmsInstance
 Single registered codec instance.

Detailed Description

Codec specialized in loading DDS (Direct Draw Surface) images.

Remarks:
We implement our own codec here since we need to be able to keep DXT data compressed if the card supports it.

Definition at line 45 of file OgreDDSCodec.h.


Member Typedef Documentation

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

Definition at line 67 of file OgreCodec.h.

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

Definition at line 69 of file OgreCodec.h.

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

Definition at line 52 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 122 of file OgreCodec.h.


Constructor & Destructor Documentation

Ogre::DDSCodec::DDSCodec  ) 
 

virtual Ogre::DDSCodec::~DDSCodec  )  [virtual]
 

Definition at line 68 of file OgreDDSCodec.h.


Member Function Documentation

Ogre::AllocatedObject< GeneralAllocPolicy >::AllocatedObject  )  [explicit, inherited]
 

Definition at line 55 of file OgreMemoryAllocatedObject.h.

DataStreamPtr Ogre::DDSCodec::code MemoryDataStreamPtr input,
CodecDataPtr pData
const [virtual]
 

Implements Ogre::Codec.

void Ogre::DDSCodec::codeToFile MemoryDataStreamPtr input,
const String outFileName,
CodecDataPtr pData
const [virtual]
 

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)

Implements Ogre::Codec.

PixelFormat Ogre::DDSCodec::convertFourCCFormat uint32  fourcc  )  const [private]
 

PixelFormat Ogre::DDSCodec::convertPixelFormat uint32  rgbBits,
uint32  rMask,
uint32  gMask,
uint32  bMask,
uint32  aMask
const [private]
 

DecodeResult Ogre::DDSCodec::decode DataStreamPtr input  )  const [virtual]
 

Parameters:
input Stream containing the encoded data
Note:
Has a variable number of arguments, which depend on the codec type.

Implements Ogre::Codec.

void Ogre::DDSCodec::flipEndian void *  pData,
size_t  size
const [private]
 

void Ogre::DDSCodec::flipEndian void *  pData,
size_t  size,
size_t  count
const [private]
 

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 89 of file OgreCodec.h.

String Ogre::ImageCodec::getDataType  )  const [virtual, inherited]
 

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

Implements Ogre::Codec.

Definition at line 74 of file OgreImageCodec.h.

static StringVector Ogre::Codec::getExtensions void   )  [static, inherited]
 

Gets the file extension list for the registered codecs.

virtual String Ogre::DDSCodec::getType  )  const [virtual]
 

Returns the type of the codec as a String.

Implements Ogre::Codec.

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 144 of file OgreCodec.h.

String Ogre::DDSCodec::magicNumberToFileExt const char *  magicNumberPtr,
size_t  maxbytes
const [virtual]
 

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.

Implements Ogre::Codec.

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

Definition at line 101 of file OgreMemoryAllocatedObject.h.

void Ogre::AllocatedObject< GeneralAllocPolicy >::operator delete void *  ptr,
void * 
[inherited]
 

Definition at line 95 of file OgreMemoryAllocatedObject.h.

void Ogre::AllocatedObject< GeneralAllocPolicy >::operator delete void *  ptr  )  [inherited]
 

Definition at line 89 of file OgreMemoryAllocatedObject.h.

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

Definition at line 112 of file OgreMemoryAllocatedObject.h.

void Ogre::AllocatedObject< GeneralAllocPolicy >::operator delete[] void *  ptr  )  [inherited]
 

Definition at line 106 of file OgreMemoryAllocatedObject.h.

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

placement operator new

Definition at line 73 of file OgreMemoryAllocatedObject.h.

void* Ogre::AllocatedObject< GeneralAllocPolicy >::operator new size_t  sz  )  [inherited]
 

Definition at line 67 of file OgreMemoryAllocatedObject.h.

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

operator new, with debug line info

Definition at line 62 of file OgreMemoryAllocatedObject.h.

void* Ogre::AllocatedObject< GeneralAllocPolicy >::operator new[] size_t  sz  )  [inherited]
 

Definition at line 84 of file OgreMemoryAllocatedObject.h.

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

array operator new, with debug line info

Definition at line 79 of file OgreMemoryAllocatedObject.h.

static void Ogre::Codec::registerCodec Codec pCodec  )  [static, inherited]
 

Registers a new codec in the database.

Definition at line 76 of file OgreCodec.h.

References Ogre::Codec::getType().

static void Ogre::DDSCodec::shutdown void   )  [static]
 

Static method to shutdown and unregister the DDS codec.

static void Ogre::DDSCodec::startup void   )  [static]
 

Static method to startup and register the DDS codec.

void Ogre::DDSCodec::unpackDXTAlpha const DXTInterpolatedAlphaBlock &  block,
ColourValue pCol
const [private]
 

Unpack DXT alphas into array of 16 colour values.

void Ogre::DDSCodec::unpackDXTAlpha const DXTExplicitAlphaBlock &  block,
ColourValue pCol
const [private]
 

Unpack DXT alphas into array of 16 colour values.

void Ogre::DDSCodec::unpackDXTColour PixelFormat  pf,
const DXTColourBlock &  block,
ColourValue pCol
const [private]
 

Unpack DXT colours into array of 16 colour values.

static void Ogre::Codec::unRegisterCodec Codec pCodec  )  [static, inherited]
 

Unregisters a codec from the database.

Definition at line 83 of file OgreCodec.h.

References Ogre::Codec::getType().


Member Data Documentation

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

A map that contains all the registered codecs.

Definition at line 55 of file OgreCodec.h.

DDSCodec* Ogre::DDSCodec::msInstance [static, private]
 

Single registered codec instance.

Definition at line 65 of file OgreDDSCodec.h.

String Ogre::DDSCodec::mType [private]
 

Definition at line 48 of file OgreDDSCodec.h.


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

Copyright © 2008 Torus Knot Software Ltd
Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sat Apr 11 13:47:34 2009