Image compressor/decompressor using Zlib. More...
#include <vtkZlibImageCompressor.h>
Public Member Functions | |
| virtual const char * | GetClassName () |
| virtual int | IsA (const char *type) |
| void | PrintSelf (ostream &os, vtkIndent indent) |
| virtual void | SetLossLessMode (int mode) |
| virtual int | Compress () |
| virtual int | Decompress () |
| virtual void | SaveConfiguration (vtkMultiProcessStream *stream) |
| virtual bool | RestoreConfiguration (vtkMultiProcessStream *stream) |
| virtual const char * | SaveConfiguration () |
| virtual const char * | RestoreConfiguration (const char *stream) |
| virtual void | SetCompressionLevel (int) |
| virtual int | GetCompressionLevel () |
| void | SetColorSpace (int csId) |
| int | GetColorSpace () |
| void | SetStripAlpha (int status) |
| int | GetStripAlpha () |
Static Public Member Functions | |
| static vtkZlibImageCompressor * | New () |
| static int | IsTypeOf (const char *type) |
| static vtkZlibImageCompressor * | SafeDownCast (vtkObject *o) |
Protected Member Functions | |
| vtkZlibImageCompressor () | |
| virtual | ~vtkZlibImageCompressor () |
Detailed Description
Image compressor/decompressor using Zlib.
This class compresses Image data using Zlib. The compression level varies between 1 and 9, 1 being the fastest at the cost of the compression ratio, 9 producing the highest compression ratio at the cost of speed. Optionally color depth may be reduced and alpha stripped/restored.
- Thanks:
- SciberQuest Inc. contributed this class.
Definition at line 36 of file vtkZlibImageCompressor.h.
Constructor & Destructor Documentation
| vtkZlibImageCompressor::vtkZlibImageCompressor | ( | ) | [protected] |
| virtual vtkZlibImageCompressor::~vtkZlibImageCompressor | ( | ) | [protected, virtual] |
Member Function Documentation
| static vtkZlibImageCompressor* vtkZlibImageCompressor::New | ( | ) | [static] |
Reimplemented from vtkObject.
| virtual const char* vtkZlibImageCompressor::GetClassName | ( | ) | [virtual] |
Reimplemented from vtkImageCompressor.
| static int vtkZlibImageCompressor::IsTypeOf | ( | const char * | type | ) | [static] |
Reimplemented from vtkImageCompressor.
| virtual int vtkZlibImageCompressor::IsA | ( | const char * | type | ) | [virtual] |
Reimplemented from vtkImageCompressor.
| static vtkZlibImageCompressor* vtkZlibImageCompressor::SafeDownCast | ( | vtkObject * | o | ) | [static] |
Reimplemented from vtkImageCompressor.
| void vtkZlibImageCompressor::PrintSelf | ( | ostream & | os, |
| vtkIndent | indent | ||
| ) | [virtual] |
Reimplemented from vtkImageCompressor.
| virtual int vtkZlibImageCompressor::Compress | ( | ) | [virtual] |
Compress/Decompress data array on the objects input with results in the objects output. See also Set/GetInput/Output.
Implements vtkImageCompressor.
| virtual int vtkZlibImageCompressor::Decompress | ( | ) | [virtual] |
Compress/Decompress data array on the objects input with results in the objects output. See also Set/GetInput/Output.
Implements vtkImageCompressor.
| virtual void vtkZlibImageCompressor::SaveConfiguration | ( | vtkMultiProcessStream * | stream | ) | [virtual] |
Serialize/Restore compressor configuration (but not the data) into the stream.
Reimplemented from vtkImageCompressor.
| virtual bool vtkZlibImageCompressor::RestoreConfiguration | ( | vtkMultiProcessStream * | stream | ) | [virtual] |
Serialize/Restore compressor configuration (but not the data) into the stream.
Reimplemented from vtkImageCompressor.
| virtual const char* vtkZlibImageCompressor::SaveConfiguration | ( | ) | [virtual] |
Serialize/Restore compressor configuration (but not the data) into the stream.
Reimplemented from vtkImageCompressor.
| virtual const char* vtkZlibImageCompressor::RestoreConfiguration | ( | const char * | stream | ) | [virtual] |
Serialize/Restore compressor configuration (but not the data) into the stream.
Reimplemented from vtkImageCompressor.
| virtual void vtkZlibImageCompressor::SetCompressionLevel | ( | int | ) | [virtual] |
Set compression level. A setting of 1 is the fastest producing the smallest compression ratio while a setting of 9 is the slowest producing the highest compression ratio. Zlib is loss-less regardless of level however, setting SetColorSpaceReduction factor to a non zero value will cause internal pre-processor to reduce the color space prior to compression which can improve compression ratio realized.
| virtual int vtkZlibImageCompressor::GetCompressionLevel | ( | ) | [virtual] |
Set compression level. A setting of 1 is the fastest producing the smallest compression ratio while a setting of 9 is the slowest producing the highest compression ratio. Zlib is loss-less regardless of level however, setting SetColorSpaceReduction factor to a non zero value will cause internal pre-processor to reduce the color space prior to compression which can improve compression ratio realized.
| void vtkZlibImageCompressor::SetColorSpace | ( | int | csId | ) |
Set to an integer between 0 and 5. This uses the same color space reduction as the squirt compressor. If set to 0 no colorspace reduction is performed.
| int vtkZlibImageCompressor::GetColorSpace | ( | ) |
Set to an integer between 0 and 5. This uses the same color space reduction as the squirt compressor. If set to 0 no colorspace reduction is performed.
| void vtkZlibImageCompressor::SetStripAlpha | ( | int | status | ) |
Set to boolean value indicating whether alpha values should be stripped prior to compression. Stripping alpha values will reduce input to compressor by 1/4 and results in speed up in compressor run time and of course reduced image size. Stripped alpha value are reinstated to 0xff during decompress.
| int vtkZlibImageCompressor::GetStripAlpha | ( | ) |
Set to boolean value indicating whether alpha values should be stripped prior to compression. Stripping alpha values will reduce input to compressor by 1/4 and results in speed up in compressor run time and of course reduced image size. Stripped alpha value are reinstated to 0xff during decompress.
| virtual void vtkZlibImageCompressor::SetLossLessMode | ( | int | mode | ) | [virtual] |
When set the implementation must use loss-less compression, otherwise implemnetation should user provided settings.
Reimplemented from vtkImageCompressor.
The documentation for this class was generated from the following file:
- dox/ParaViewCore/VTKExtensions/vtkZlibImageCompressor.h
