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/*
** Copyright (c) 1995 Netsurfer Inc. All Rights Reserved.
**
** Author: <bbum@friday.com>
*/
/* This object is included in the MiscKit by permission from the author
** and its use is governed by the MiscKit license, found in the file
** "LICENSE.rtf" in the MiscKit distribution. Please refer to that file
** for a list of all applicable permissions and restrictions.
*/
#define BOOL2STR(_b_) (_b_ ? "Yes": "No")
/* read_short is used to extract an unsigned short from two consecutive
bytes of a LSB oriented stream
*/
extern unsigned short read_short(unsigned char *buf);
@interface SurfGIFDecoder (Internal)
- _decodeFromStream:(NXStream *) stream;
- _decodeLogicalScreenDescriptor:(NXStream *) stream;
- (unsigned char *) _decodeColorTable:(NXStream *)stream
entryCount:(unsigned) tableSize
intoBuffer:(unsigned char *)buf;
- _decodeGCT:(NXStream *) stream;
- _decodeGraphicControlExtension:(NXStream *) stream;
- _decodeImageData:(NXStream *)stream;
- _decompressImage32:(NXStream *) stream;
- _decompressImage16:(NXStream *) stream;
- _decodeImageDescriptor:(NXStream *)stream;
- _decodeData:(NXStream *) stream;
- _resetImageDescriptor;
- _resetGraphicControlExtension;
- _resetDecoder;
@end
/* The following methods basically skip over an extension or block
of a particular type that is not supported by the decoder. Most
of these blocks simply have no meaning in our world; some should
(text extension, for example), but support has not yet been
written.
*/
@interface SurfGIFDecoder (UnsupportedBlocks)
/* Skips over data blocks until a NULL data block is encountered (a
data terminator). Can be used to skip over ANYTHING that starts
with a length byte that describes the number of bytes TO FOLLOW
the length byte. Data blocks are a maximum size of 256 bytes
INCLUDING the length byte.
*/
- _skipDataBlocks:(NXStream *) stream;
- _decodeApplicationExtension:(NXStream *) stream;
- _decodeCommentExtension:(NXStream *) stream;
- _decodePlainTextExtension:(NXStream *) stream;
@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.