//! Reads a Jpeg2000 file.
ILboolean ilLoadJp2(ILconst_string FileName)
{
// ILHANDLE Jp2File;
ILboolean bRet = IL_FALSE;
jas_stream_t *Stream;
/*Jp2File = iopenr(FileName);
if (Jp2File == NULL) {
ilSetError(IL_COULD_NOT_OPEN_FILE);
return bJp2;
}
bJp2 = iLoadJp2Internal();
icloser(Jp2File);*/
if (jas_init())
{
ilSetError(IL_LIB_JP2_ERROR);
return IL_FALSE;
}
Stream = jas_stream_fopen(FileName, "rb");
if (!Stream)
{
ilSetError(IL_COULD_NOT_OPEN_FILE);
return IL_FALSE;
}
bRet = iLoadJp2Internal(Stream, NULL);
// Close the input stream.
jas_stream_close(Stream);
return bRet;
}
//! Reads an already-opened Jpeg2000 file.
ILboolean ilLoadJp2F(ILHANDLE File)
{
ILuint FirstPos;
ILboolean bRet;
jas_stream_t *Stream;
iSetInputFile(File);
FirstPos = itell();
if (jas_init())
{
ilSetError(IL_LIB_JP2_ERROR);
return IL_FALSE;
}
Stream = iJp2ReadStream();
if (!Stream)
{
ilSetError(IL_COULD_NOT_OPEN_FILE);
return IL_FALSE;
}
bRet = iLoadJp2Internal(Stream, NULL);
// Close the input stream.
jas_stream_close(Stream);
iseek(FirstPos, IL_SEEK_SET);
return bRet;
}
//! This is separated so that it can be called for other file types, such as .icns.
ILboolean ilLoadLInternal_JP2(const void *Lump, ILuint Size, ILimage *Image)
{
ILboolean bRet;
jas_stream_t *Stream;
if (!JasperInit) {
if (jas_init()) {
ilSetError(IL_LIB_JP2_ERROR);
return IL_FALSE;
}
JasperInit = IL_TRUE;
}
Stream = jas_stream_memopen((char*)Lump, Size);
if (!Stream)
{
ilSetError(IL_COULD_NOT_OPEN_FILE);
return IL_FALSE;
}
bRet = iLoadJp2Internal(Stream, Image);
// Close the input stream.
jas_stream_close(Stream);
return bRet;
}
