< prev index next >

src/java.desktop/share/native/libsplashscreen/giflib/gif_lib_private.h

Print this page




   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.  Oracle designates this
   7  * particular file as subject to the "Classpath" exception as provided
   8  * by Oracle in the LICENSE file that accompanied this code.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  */
  24 






  25 #ifndef _GIF_LIB_PRIVATE_H
  26 #define _GIF_LIB_PRIVATE_H
  27 
  28 #include "gif_lib.h"

  29 
  30 #define PROGRAM_NAME "LIBUNGIF"
  31 
  32 #ifdef SYSV
  33 #define VersionStr "Gif library module,\t\tEric S. Raymond\n\
  34                     (C) Copyright 1997 Eric S. Raymond\n"
  35 #else
  36 #define VersionStr PROGRAM_NAME "    IBMPC " GIF_LIB_VERSION \
  37                     "    Eric S. Raymond,    " __DATE__ ",   " \
  38                     __TIME__ "\n" "(C) Copyright 1997 Eric S. Raymond\n"
  39 #endif /* SYSV */
  40 
  41 #define LZ_MAX_CODE         4095    /* Biggest code possible in 12 bits. */
  42 #define LZ_BITS             12
  43 
  44 #define FLUSH_OUTPUT        4096    /* Impossible code, to signal flush. */
  45 #define FIRST_CODE          4097    /* Impossible code, to signal first. */
  46 #define NO_SUCH_CODE        4098    /* Impossible code, to signal empty. */
  47 
  48 #define FILE_STATE_WRITE    0x01
  49 #define FILE_STATE_SCREEN   0x02
  50 #define FILE_STATE_IMAGE    0x04
  51 #define FILE_STATE_READ     0x08
  52 
  53 #define IS_READABLE(Private)    (Private->FileState & FILE_STATE_READ)
  54 #define IS_WRITEABLE(Private)   (Private->FileState & FILE_STATE_WRITE)
  55 
  56 typedef struct GifFilePrivateType {
  57     int FileState, FileHandle,  /* Where all this data goes to! */
  58       BitsPerPixel,     /* Bits per pixel (Codes uses at least this + 1). */
  59       ClearCode,   /* The CLEAR LZ code. */
  60       EOFCode,     /* The EOF LZ code. */
  61       RunningCode, /* The next code algorithm can generate. */
  62       RunningBits, /* The number of bits required to represent RunningCode. */
  63       MaxCode1,    /* 1 bigger than max. possible code, in RunningBits bits. */
  64       LastCode,    /* The code before the current code. */
  65       CrntCode,    /* Current algorithm code. */
  66       StackPtr,    /* For character stack (see below). */
  67       CrntShiftState;    /* Number of bits in CrntShiftDWord. */
  68     unsigned long CrntShiftDWord;   /* For bytes decomposition into codes. */
  69     unsigned long PixelCount;   /* Number of pixels in image. */
  70     FILE *File;    /* File as stream. */
  71     InputFunc Read;     /* function to read gif input (TVT) */
  72     OutputFunc Write;   /* function to write gif output (MRB) */
  73     GifByteType Buf[256];   /* Compressed input is buffered here. */
  74     GifByteType Stack[LZ_MAX_CODE]; /* Decoded pixels are stacked here. */
  75     GifByteType Suffix[LZ_MAX_CODE + 1];    /* So we can trace the codes. */
  76     unsigned int Prefix[LZ_MAX_CODE + 1];


  77 } GifFilePrivateType;
  78 
  79 extern int _GifError;
  80 
  81 #endif /* _GIF_LIB_PRIVATE_H */




   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.  Oracle designates this
   7  * particular file as subject to the "Classpath" exception as provided
   8  * by Oracle in the LICENSE file that accompanied this code.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  */
  24 
  25 /****************************************************************************
  26 
  27 gif_lib_private.h - internal giflib routines and structures
  28 
  29 ****************************************************************************/
  30 
  31 #ifndef _GIF_LIB_PRIVATE_H
  32 #define _GIF_LIB_PRIVATE_H
  33 
  34 #include "gif_lib.h"
  35 #include "gif_hash.h"
  36 
  37 #define EXTENSION_INTRODUCER      0x21
  38 #define DESCRIPTOR_INTRODUCER     0x2c
  39 #define TERMINATOR_INTRODUCER     0x3b







  40 
  41 #define LZ_MAX_CODE         4095    /* Biggest code possible in 12 bits. */
  42 #define LZ_BITS             12
  43 
  44 #define FLUSH_OUTPUT        4096    /* Impossible code, to signal flush. */
  45 #define FIRST_CODE          4097    /* Impossible code, to signal first. */
  46 #define NO_SUCH_CODE        4098    /* Impossible code, to signal empty. */
  47 
  48 #define FILE_STATE_WRITE    0x01
  49 #define FILE_STATE_SCREEN   0x02
  50 #define FILE_STATE_IMAGE    0x04
  51 #define FILE_STATE_READ     0x08
  52 
  53 #define IS_READABLE(Private)    (Private->FileState & FILE_STATE_READ)
  54 #define IS_WRITEABLE(Private)   (Private->FileState & FILE_STATE_WRITE)
  55 
  56 typedef struct GifFilePrivateType {
  57     GifWord FileState, FileHandle,  /* Where all this data goes to! */
  58       BitsPerPixel,     /* Bits per pixel (Codes uses at least this + 1). */
  59       ClearCode,   /* The CLEAR LZ code. */
  60       EOFCode,     /* The EOF LZ code. */
  61       RunningCode, /* The next code algorithm can generate. */
  62       RunningBits, /* The number of bits required to represent RunningCode. */
  63       MaxCode1,    /* 1 bigger than max. possible code, in RunningBits bits. */
  64       LastCode,    /* The code before the current code. */
  65       CrntCode,    /* Current algorithm code. */
  66       StackPtr,    /* For character stack (see below). */
  67       CrntShiftState;    /* Number of bits in CrntShiftDWord. */
  68     unsigned long CrntShiftDWord;   /* For bytes decomposition into codes. */
  69     unsigned long PixelCount;   /* Number of pixels in image. */
  70     FILE *File;    /* File as stream. */
  71     InputFunc Read;     /* function to read gif input (TVT) */
  72     OutputFunc Write;   /* function to write gif output (MRB) */
  73     GifByteType Buf[256];   /* Compressed input is buffered here. */
  74     GifByteType Stack[LZ_MAX_CODE]; /* Decoded pixels are stacked here. */
  75     GifByteType Suffix[LZ_MAX_CODE + 1];    /* So we can trace the codes. */
  76     GifPrefixType Prefix[LZ_MAX_CODE + 1];
  77     GifHashTableType *HashTable;
  78     bool gif89;
  79 } GifFilePrivateType;
  80 


  81 #endif /* _GIF_LIB_PRIVATE_H */
  82 
  83 /* end */
< prev index next >