25#include FT_INTERNAL_MEMORY_H
26#include FT_INTERNAL_STREAM_H
27#include FT_INTERNAL_DEBUG_H
29#include FT_CONFIG_STANDARD_LIBRARY_H
32#include FT_MODULE_ERRORS_H
37#define FT_ERR_PREFIX LZW_Err_
38#define FT_ERR_BASE FT_Mod_Err_LZW
43#ifdef FT_CONFIG_OPTION_USE_LZW
64#define FT_LZW_BUFFER_SIZE 4096
66 typedef struct FT_LZWFileRec_
78 } FT_LZWFileRec, *FT_LZWFile;
94 if (
head[0] != 0x1F ||
104 ft_lzw_file_init( FT_LZWFile zip,
114 zip->memory =
stream->memory;
116 zip->limit = zip->buffer + FT_LZW_BUFFER_SIZE;
117 zip->cursor = zip->limit;
134 ft_lzw_file_done( FT_LZWFile zip )
146 ft_lzw_file_reset( FT_LZWFile zip )
156 zip->limit = zip->buffer + FT_LZW_BUFFER_SIZE;
157 zip->cursor = zip->limit;
166 ft_lzw_file_fill_output( FT_LZWFile zip )
173 zip->cursor = zip->buffer;
177 zip->limit = zip->cursor +
count;
188 ft_lzw_file_skip_output( FT_LZWFile zip,
199 if ( delta >=
count )
202 zip->cursor += delta;
211 FT_ULong delta = FT_LZW_BUFFER_SIZE;
219 if ( numread < delta )
235 ft_lzw_file_io( FT_LZWFile zip,
245 if ( pos < zip->
pos )
249 if ( ( zip->pos -
pos ) <= (
FT_ULong)( zip->cursor - zip->buffer ) )
251 zip->cursor -= zip->pos -
pos;
256 error = ft_lzw_file_reset( zip );
263 if (
pos > zip->pos )
279 delta = (
FT_ULong)( zip->limit - zip->cursor );
280 if ( delta >=
count )
285 zip->cursor += delta;
292 error = ft_lzw_file_fill_output( zip );
313 FT_LZWFile zip = (FT_LZWFile)
stream->descriptor.pointer;
320 ft_lzw_file_done( zip );
333 unsigned long count )
335 FT_LZWFile zip = (FT_LZWFile)
stream->descriptor.pointer;
348 FT_LZWFile zip =
NULL;
382 stream->descriptor.pointer = zip;
388 stream->read = ft_lzw_stream_io;
389 stream->close = ft_lzw_stream_close;
409 return FT_THROW( Unimplemented_Feature );
struct outqueuenode * head
FT_Stream_OpenLZW(FT_Stream stream, FT_Stream source)
#define FT_MEM_COPY(dest, source, count)
#define FT_STREAM_SEEK(position)
#define FT_STREAM_READ(buffer, count)
typedefFT_BEGIN_HEADER struct FT_MemoryRec_ * FT_Memory
ft_lzwstate_init(FT_LzwState state, FT_Stream source)
ft_lzwstate_io(FT_LzwState state, FT_Byte *buffer, FT_ULong out_size)
ft_lzwstate_reset(FT_LzwState state)
ft_lzwstate_done(FT_LzwState state)
GLuint GLuint GLsizei count
static char memory[1024 *256]