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HxImageSeqDXMedia Class Reference

Read image sequence files using DirectMedia library. More...

#include <HxImageSeqDXMedia.h>

Inheritance diagram for HxImageSeqDXMedia::

HxImageSeqData HxRcObject List of all members.

Public Methods

 HxImageSeqDXMedia (HxString fileName, int bufSize)
 Constructor. More...

virtual ~HxImageSeqDXMedia ()
 Destructor. More...

virtual int valid ()
 Is this a valid object? More...

virtual int frameWidth ()
 The frame width. More...

virtual int frameHeight ()
 The frame height. More...

virtual int frameDepth ()
 The frame depth. More...

virtual int nrFrames ()
 The number of frames. More...

virtual void getRgb2d (int fn, int *pixels, HxString displayMode)
 Display the specified frame in the given buffer in ARGB format using the given displayMode. More...

virtual void getRgbPixels2d (int fn, int *pixels, HxString displayMode, int resWidth, int resHeight, HxGeoIntType gi)
 Display the specified frame in the given buffer in ARGB format using the given displayMode. More...

virtual HxImageRep frame2HxImageRep (int)
 "construct" an HxImageRep for the specified frame. More...

Detailed Description

Read image sequence files using DirectMedia library.

Constructor & Destructor Documentation

HxImageSeqDXMedia::HxImageSeqDXMedia (  HxString    fileName,
int    bufSize
) 
 

Constructor. 

00020     : HxImageSeqData(bufSize)
00021 {
00022     _handle = HxDXLoadVideo(fileName.c_str());
00023     if (_handle) {
00024         _sizes = HxSizes(frameWidth(), frameHeight(), 1);
00025     } else {
00026         HxEnvironment::instance()->errorStream() <<
00027             "HxImageSeqDXMedia : unable to load file " << fileName << STD_ENDL;
00028         HxEnvironment::instance()->flush();
00029     }
00030 }

HxImageSeqDXMedia::~HxImageSeqDXMedia (    )  [virtual]
 

Destructor. 

00039 {
00040     if (_handle)
00041     {
00042         HxDXCloseVideo(_handle);
00043     }
00044 }

Member Function Documentation

int HxImageSeqDXMedia::valid (    )  [virtual]
 

Is this a valid object?

Reimplemented from HxImageSeqData. 

00034 {
00035     return (_handle != NULL);
00036 }

int HxImageSeqDXMedia::frameWidth (    )  [virtual]
 

The frame width.

Reimplemented from HxImageSeqData. 

00048 {
00049     return (_handle) ? HxDXGetFrameWidth(_handle) : -1;
00050 }

int HxImageSeqDXMedia::frameHeight (    )  [virtual]
 

The frame height.

Reimplemented from HxImageSeqData. 

00054 {
00055     return (_handle) ? HxDXGetFrameHeight(_handle) : -1;
00056 }

int HxImageSeqDXMedia::frameDepth (    )  [virtual]
 

The frame depth.

Reimplemented from HxImageSeqData. 

00060 {
00061     return 1;
00062 }

int HxImageSeqDXMedia::nrFrames (    )  [virtual]
 

The number of frames.

Reimplemented from HxImageSeqData. 

00066 {
00067     return (_handle) ? HxDXGetLength(_handle) : 0;
00068 }

void HxImageSeqDXMedia::getRgb2d (  int    fn,
int *    pixels,
HxString    displayMode
)  [virtual]
 

Display the specified frame in the given buffer in ARGB format using the given displayMode.

Optimized version : does not require HxImageRep.

Reimplemented from HxImageSeqData. 

00085 {
00086     if(!_handle) return;
00087 
00088     if(displayMode == "Direct") getRgbPixels2d(fn, pixels);
00089     else
00090         HxImageSeqData::getRgb2d(fn, pixels, displayMode);
00091 }

void HxImageSeqDXMedia::getRgbPixels2d (  int    fn,
int *    pixels,
HxString    displayMode,
int    resWidth,
int    resHeight,
HxGeoIntType    gi
)  [virtual]
 

Display the specified frame in the given buffer in ARGB format using the given displayMode.

Optimized version : does not require HxImageRep.

Reimplemented from HxImageSeqData. 

00073 {
00074     if(!_handle) return;
00075 
00076     if((displayMode == "Direct") && (resWidth == -1) && (resHeight == -1))  
00077         getRgbPixels2d(fn, pixels);
00078     else
00079         HxImageSeqData::getRgbPixels2d(fn, pixels, displayMode, 
00080             resWidth, resHeight, gi);
00081 }

HxImageRep HxImageSeqDXMedia::frame2HxImageRep (  int    fn )  [virtual]
 

"construct" an HxImageRep for the specified frame.

Reimplemented from HxImageSeqData. 

00113 {
00114     HxImageSignature sig(2, 3, INT_VALUE, 8);
00115     unsigned char* data = HxDXGetFrame(_handle, fn);
00116     if (data) {
00117         //HxTagList tags;
00118         //HxAddTag(tags, "dataPtr", data);
00119         //return HxImageFactory::instance().fromImport(sig, _sizes, 
00120         //  "importBgr", tags);
00121 
00122         HxImageRep im = HxMakeFromByteData(3, 2, _sizes, data);
00123         return im;
00124     }
00125     HxImageRep im2 = HxMakeFromSignature(sig, _sizes);
00126     return im2;
00127 }

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