89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
|
/*
|
||
|
* File: ximajas.h
|
||
|
* Purpose: Jasper Image Class Loader and Writer
|
||
|
*/
|
||
|
/* ==========================================================
|
||
|
* CxImageJAS (c) 12/Apr/2003 Davide Pizzolato - www.xdp.it
|
||
|
* For conditions of distribution and use, see copyright notice in ximage.h
|
||
|
*
|
||
|
* based on JasPer Copyright (c) 2001-2003 Michael David Adams - All rights reserved.
|
||
|
* ==========================================================
|
||
|
*/
|
||
|
#if !defined(__ximaJAS_h)
|
||
|
#define __ximaJAS_h
|
||
|
|
||
|
#include "ximage.h"
|
||
|
|
||
|
#if CXIMAGE_SUPPORT_JASPER
|
||
|
|
||
|
#ifdef _LINUX
|
||
|
#include <jasper/jasper.h>
|
||
|
#else
|
||
|
#include "../jasper/include/jasper/jasper.h"
|
||
|
#endif
|
||
|
|
||
|
class CxImageJAS: public CxImage
|
||
|
{
|
||
|
public:
|
||
|
CxImageJAS(): CxImage((uint32_t)0) {} // <vho> cast to uint32_t
|
||
|
|
||
|
// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,0);}
|
||
|
// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,0);}
|
||
|
bool Decode(CxFile * hFile, uint32_t imagetype = 0);
|
||
|
bool Decode(FILE *hFile, uint32_t imagetype = 0) { CxIOFile file(hFile); return Decode(&file,imagetype); }
|
||
|
|
||
|
#if CXIMAGE_SUPPORT_ENCODE
|
||
|
bool Encode(CxFile * hFile, uint32_t imagetype = 0);
|
||
|
bool Encode(FILE *hFile, uint32_t imagetype = 0) { CxIOFile file(hFile); return Encode(&file,imagetype); }
|
||
|
#endif // CXIMAGE_SUPPORT_ENCODE
|
||
|
protected:
|
||
|
|
||
|
class CxFileJas
|
||
|
{
|
||
|
public:
|
||
|
CxFileJas(CxFile* pFile,jas_stream_t *stream)
|
||
|
{
|
||
|
if (stream->obj_) jas_free(stream->obj_);
|
||
|
stream->obj_ = pFile;
|
||
|
|
||
|
// <vho> - cannot set the stream->ops_->functions here,
|
||
|
// because this overwrites a static structure in the Jasper library.
|
||
|
// This structure is used by Jasper for internal operations too, e.g. tempfile.
|
||
|
// However the ops_ pointer in the stream can be overwritten.
|
||
|
|
||
|
//stream->ops_->close_ = JasClose;
|
||
|
//stream->ops_->read_ = JasRead;
|
||
|
//stream->ops_->seek_ = JasSeek;
|
||
|
//stream->ops_->write_ = JasWrite;
|
||
|
|
||
|
jas_stream_CxFile.close_ = JasClose;
|
||
|
jas_stream_CxFile.read_ = JasRead;
|
||
|
jas_stream_CxFile.seek_ = JasSeek;
|
||
|
jas_stream_CxFile.write_ = JasWrite;
|
||
|
|
||
|
stream->ops_ = &jas_stream_CxFile;
|
||
|
|
||
|
// <vho> - end
|
||
|
}
|
||
|
static int32_t JasRead(jas_stream_obj_t *obj, char *buf, int32_t cnt)
|
||
|
{ return ((CxFile*)obj)->Read(buf,1,cnt); }
|
||
|
static int32_t JasWrite(jas_stream_obj_t *obj, char *buf, int32_t cnt)
|
||
|
{ return ((CxFile*)obj)->Write(buf,1,cnt); }
|
||
|
static long JasSeek(jas_stream_obj_t *obj, long offset, int32_t origin)
|
||
|
{ return ((CxFile*)obj)->Seek(offset,origin); }
|
||
|
static int32_t JasClose(jas_stream_obj_t * /*obj*/)
|
||
|
{ return 1; }
|
||
|
|
||
|
// <vho>
|
||
|
private:
|
||
|
jas_stream_ops_t jas_stream_CxFile;
|
||
|
// <vho> - end
|
||
|
|
||
|
};
|
||
|
|
||
|
};
|
||
|
|
||
|
#endif
|
||
|
|
||
|
#endif
|