Image class that support file reading/writing operations using auxiliary image library. Supported image formats: More...
#include <Image_AlienPixMap.hxx>
Inheritance diagram for Image_AlienPixMap:
Public Member Functions | |
| Image_AlienPixMap () | |
| Empty constructor. More... | |
| virtual | ~Image_AlienPixMap () |
| Destructor. More... | |
| bool | Load (const TCollection_AsciiString &theFileName) |
| Read image data from file. More... | |
| bool | Save (const TCollection_AsciiString &theFileName) |
| Write image data to file using file extension to determine compression format. More... | |
| virtual bool | InitTrash (ImgFormat thePixelFormat, const Standard_Size theSizeX, const Standard_Size theSizeY, const Standard_Size theSizeRowBytes=0) override |
| Initialize image plane with required dimensions. thePixelFormat - if specified pixel format doesn't supported by image library than nearest supported will be used instead! theSizeRowBytes - may be ignored by this class and required alignemnt will be used instead! More... | |
| virtual bool | InitCopy (const Image_PixMap &theCopy) override |
| Initialize by copying data. More... | |
| virtual void | Clear () override |
| Method correctly deallocate internal buffer. More... | |
| bool | AdjustGamma (const Standard_Real theGammaCorr) |
| Performs gamma correction on image. theGamma - gamma value to use; a value of 1.0 leaves the image alone. More... | |
 Public Member Functions inherited from Image_PixMap | |
| ImgFormat | Format () const |
| void | SetFormat (const ImgFormat thePixelFormat) |
| Override pixel format specified by InitXXX() methods. Will throw exception if pixel size of new format is not equal to currently initialized format. Intended to switch formats indicating different interpretation of the same data (e.g. ImgGray and ImgAlpha). More... | |
| Standard_Size | Width () const |
| Standard_Size | Height () const |
| Standard_Size | SizeX () const |
| Standard_Size | SizeY () const |
| Standard_Real | Ratio () const |
| bool | IsEmpty () const |
| Image_PixMap () | |
| Empty constructor. Initialize the NULL image plane. More... | |
| virtual | ~Image_PixMap () |
| Destructor. More... | |
| Quantity_Color | PixelColor (const Standard_Integer theX, const Standard_Integer theY) const |
| Returns the pixel color. This function is relatively slow. More... | |
| Quantity_Color | PixelColor (const Standard_Integer theX, const Standard_Integer theY, Quantity_Parameter &theAlpha) const |
| Returns the pixel color. This function is relatively slow. theAlpha argument is set to color intensity (0 - transparent, 1 - opaque) More... | |
| bool | InitZero (ImgFormat thePixelFormat, const Standard_Size theSizeX, const Standard_Size theSizeY, const Standard_Size theSizeRowBytes=0, const Standard_Byte theValue=0) |
| Initialize image plane with required dimensions. Buffer will be zeroed (black color for most formats). More... | |
| bool | IsTopDown () const |
| Returns TRUE if image data is stored from Top to the Down. By default Bottom Up order is used instead (topmost scanlines starts from the bottom in memory). which is most image frameworks naturally support. More... | |
| void | SetTopDown (const bool theIsTopDown) |
| Setup scanlines order in memory - top-down or bottom-up. Drawers should explicitly specify this value if current state IsTopDown() was ignored! More... | |
| Standard_Size | TopDownInc () const |
| Returns +1 if scanlines ordered in Top->Down order in memory and -1 otherwise. More... | |
| const Standard_Byte * | Data () const |
| Standard_Byte * | ChangeData () |
| const Standard_Byte * | Row (const Standard_Size theRow) const |
| Standard_Byte * | ChangeRow (const Standard_Size theRow) |
| Standard_Size | SizePixelBytes () const |
| Standard_Size | SizeRowBytes () const |
| Standard_Size | RowExtraBytes () const |
| Standard_Size | MaxRowAligmentBytes () const |
| Compute the maximal row alignment for current row size. More... | |
| Standard_Size | SizeBytes () const |
| template<typename ColorType_t > | |
| const ColorType_t & | Value (const Standard_Size theRow, const Standard_Size theCol) const |
| Access image pixel with specified color type. This method does not perform any type checks - use on own risk (check Format() before)! More... | |
| template<typename ColorType_t > | |
| ColorType_t & | ChangeValue (const Standard_Size theRow, const Standard_Size theCol) |
| Access image pixel with specified color type. This method does not perform any type checks - use on own risk (check Format() before)! More... | |
| Public Member Functions inherited from Standard_Transient | |
| Standard_Transient () | |
| Empty constructor. More... | |
| Standard_Transient (const Standard_Transient &) | |
| Copy constructor – does nothing. More... | |
| Standard_Transient & | operator= (const Standard_Transient &) |
| Assignment operator, needed to avoid copying reference counter. More... | |
| virtual | ~Standard_Transient () |
| Destructor must be virtual. More... | |
| virtual void | Delete () const |
| Memory deallocator for transient classes. More... | |
| virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
| Returns a type descriptor about this object. More... | |
| Standard_Boolean | IsInstance (const opencascade::handle< Standard_Type > &theType) const |
| Returns a true value if this is an instance of Type. More... | |
| Standard_Boolean | IsInstance (const Standard_CString theTypeName) const |
| Returns a true value if this is an instance of TypeName. More... | |
| Standard_Boolean | IsKind (const opencascade::handle< Standard_Type > &theType) const |
| Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More... | |
| Standard_Boolean | IsKind (const Standard_CString theTypeName) const |
| Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More... | |
| Standard_Transient * | This () const |
| Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. More... | |
| Standard_Integer | GetRefCount () const |
| Get the reference counter of this object. More... | |
| void | IncrementRefCounter () const |
| Increments the reference counter of this object. More... | |
| Standard_Integer | DecrementRefCounter () const |
| Decrements the reference counter of this object; returns the decremented value. More... | |
Additional Inherited Members | |
| Public Types inherited from Image_PixMap | |
| enum | tagFormat { ImgUNKNOWN = 0, ImgGray = 1, ImgAlpha, ImgRGB, ImgBGR, ImgRGB32, ImgBGR32, ImgRGBA, ImgBGRA, ImgGrayF, ImgAlphaF, ImgRGBF, ImgBGRF, ImgRGBAF, ImgBGRAF } |
| This enumeration define packed image plane formats. More... | |
| typedef enum Image_PixMap::tagFormat | ImgFormat |
| This enumeration define packed image plane formats. More... | |
| Public Types inherited from Standard_Transient | |
| typedef void | base_type |
| Returns a type descriptor about this object. More... | |
| Static Public Member Functions inherited from Image_PixMap | |
| static bool | IsBigEndianHost () |
| Determine Big-Endian at runtime. More... | |
| static Standard_Size | SizePixelBytes (const Image_PixMap::ImgFormat thePixelFormat) |
| Static Public Member Functions inherited from Standard_Transient | |
| static const char * | get_type_name () |
| Returns a type descriptor about this object. More... | |
| static const opencascade::handle< Standard_Type > & | get_type_descriptor () |
| Returns type descriptor of Standard_Transient class. More... | |
| Protected Attributes inherited from Image_PixMap | |
| Image_PixMapData | myData |
| data buffer More... | |
| ImgFormat | myImgFormat |
| pixel format More... | |
Detailed Description
Image class that support file reading/writing operations using auxiliary image library. Supported image formats:
- *.bmp - bitmap image, lossless format without compression.
- *.ppm - PPM (Portable Pixmap Format), lossless format without compression.
- *.png - PNG (Portable Network Graphics) lossless format with compression.
- *.jpg, *.jpe, *.jpeg - JPEG/JIFF (Joint Photographic Experts Group) lossy format (compressed with quality losses). YUV color space used (automatically converted from/to RGB).
- *.tif, *.tiff - TIFF (Tagged Image File Format).
- *.tga - TGA (Truevision Targa Graphic), lossless format.
- *.gif - GIF (Graphical Interchange Format), lossy format. Color stored using pallete (up to 256 distinct colors).
- *.exr - OpenEXR high dynamic-range format (supports float pixel formats).
Constructor & Destructor Documentation
| Image_AlienPixMap::Image_AlienPixMap | ( | ) |
Empty constructor.
|
virtual |
Destructor.
Member Function Documentation
| bool Image_AlienPixMap::AdjustGamma | ( | const Standard_Real | theGammaCorr | ) |
Performs gamma correction on image. theGamma - gamma value to use; a value of 1.0 leaves the image alone.
|
overridevirtual |
Method correctly deallocate internal buffer.
Reimplemented from Image_PixMap.
|
overridevirtual |
Initialize by copying data.
Reimplemented from Image_PixMap.
|
overridevirtual |
Initialize image plane with required dimensions. thePixelFormat - if specified pixel format doesn't supported by image library than nearest supported will be used instead! theSizeRowBytes - may be ignored by this class and required alignemnt will be used instead!
Reimplemented from Image_PixMap.
| bool Image_AlienPixMap::Load | ( | const TCollection_AsciiString & | theFileName | ) |
Read image data from file.
| bool Image_AlienPixMap::Save | ( | const TCollection_AsciiString & | theFileName | ) |
Write image data to file using file extension to determine compression format.
The documentation for this class was generated from the following file:
