graf2d » asimage » src » libAfterImage » libungif

egif_lib.c File Reference

#include "../config.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "gif_lib.h"
#include "gif_lib_private.h"

Go to the source code of this file.

Defines

#define WRITE(_gif, _buf, _len)

Functions

static int EGifPutWord (int Word, GifFileType *GifFile)
static int EGifSetupCompress (GifFileType *GifFile)
static int EGifCompressLine (GifFileType *GifFile, GifPixelType *Line, int LineLen)
static int EGifCompressOutput (GifFileType *GifFile, int Code)
static int EGifBufferedOutput (GifFileType *GifFile, GifByteType *Buf, int c)
GifFileType * EGifOpenFileHandle (int FileHandle)
GifFileType * EGifOpen (void *userData, OutputFunc writeFunc)
void EGifSetGifVersion (const char *Version)
int EGifPutScreenDesc (GifFileType *GifFile, int Width, int Height, int ColorRes, int BackGround, const ColorMapObject *ColorMap)
int EGifPutImageDesc (GifFileType *GifFile, int Left, int Top, int Width, int Height, int Interlace, const ColorMapObject *ColorMap)
int EGifPutLine (GifFileType *GifFile, GifPixelType *Line, int LineLen)
int EGifPutComment (GifFileType *GifFile, const char *Comment)
int EGifPutExtensionFirst (GifFileType *GifFile, int ExtCode, int ExtLen, const VoidPtr Extension)
int EGifPutExtensionNext (GifFileType *GifFile, int ExtCode, int ExtLen, const VoidPtr Extension)
int EGifPutExtensionLast (GifFileType *GifFile, int ExtCode, int ExtLen, const VoidPtr Extension)
int EGifPutExtension (GifFileType *GifFile, int ExtCode, int ExtLen, const VoidPtr Extension)
int EGifCloseFile (GifFileType *GifFile)

Variables

static GifPixelType CodeMask []
static unsigned char GifVersionPrefix [GIF_STAMP_LEN+1] = GIF87_STAMP
static int GifVersionPrefixLen = GIF_STAMP_LEN

Define Documentation

#define WRITE ( _gif,
_buf,
_len   ) 

Value:

(((GifFilePrivateType*)_gif->Private)->Write ?    \
   ((GifFilePrivateType*)_gif->Private)->Write(_gif,(unsigned char *)_buf,(int)_len) :    \
   fwrite(_buf, 1, _len, ((GifFilePrivateType*)_gif->Private)->File))

Definition at line 56 of file egif_lib.c.

Referenced by EGifBufferedOutput(), EGifCloseFile(), EGifPutExtension(), EGifPutImageDesc(), EGifPutScreenDesc(), EGifPutWord(), and EGifSetupCompress().

Function Documentation

static int EGifBufferedOutput ( GifFileType *  GifFile,
GifByteType *  Buf,
int  c 
) [static]

Definition at line 783 of file egif_lib.c.

References _GifError, E_GIF_ERR_WRITE_FAILED, FLUSH_OUTPUT, GIF_ERROR, GIF_OK, and WRITE.

Referenced by EGifCompressOutput().

int EGifCloseFile ( GifFileType *  GifFile  ) 

Definition at line 536 of file egif_lib.c.

References _GifError, GifImageDesc::ColorMap, E_GIF_ERR_CLOSE_FAILED, E_GIF_ERR_NOT_WRITEABLE, fclose(), GifFilePrivateType::File, File, free(), FreeMapObject(), GIF_ERROR, GIF_OK, GifFilePrivateType::HashTable, if(), GifFileType::Image, IS_WRITEABLE, NULL, GifFileType::Private, GifFileType::SColorMap, and WRITE.

Referenced by ASImage2gif().

static int EGifCompressLine ( GifFileType *  GifFile,
GifPixelType *  Line,
int  LineLen 
) [static]

Definition at line 650 of file egif_lib.c.

References _ClearHashTable(), _ExistsHashTable(), _GifError, _InsertHashTable(), GifFilePrivateType::BitsPerPixel, GifFilePrivateType::ClearCode, GifFilePrivateType::CrntCode, E_GIF_ERR_DISK_IS_FULL, EGifCompressOutput(), GifFilePrivateType::EOFCode, FIRST_CODE, FLUSH_OUTPUT, GIF_ERROR, GIF_OK, GifFilePrivateType::HashTable, i, if(), LZ_MAX_CODE, GifFilePrivateType::MaxCode1, GifFilePrivateType::PixelCount, GifFileType::Private, GifFilePrivateType::RunningBits, GifFilePrivateType::RunningCode, and UINT32.

Referenced by EGifPutLine().

static int EGifCompressOutput ( GifFileType *  GifFile,
int  Code 
) [static]

Definition at line 737 of file egif_lib.c.

References GifFilePrivateType::Buf, GifFilePrivateType::CrntShiftDWord, GifFilePrivateType::CrntShiftState, EGifBufferedOutput(), FLUSH_OUTPUT, GIF_ERROR, GIF_OK, if(), long, GifFilePrivateType::MaxCode1, GifFileType::Private, retval, GifFilePrivateType::RunningBits, and GifFilePrivateType::RunningCode.

Referenced by EGifCompressLine(), and EGifSetupCompress().

GifFileType* EGifOpen ( void *  userData,
OutputFunc  writeFunc 
)

Definition at line 127 of file egif_lib.c.

References _GifError, _InitHashTable(), E_GIF_ERR_NOT_ENOUGH_MEM, GifFilePrivateType::File, FILE_STATE_WRITE, GifFilePrivateType::FileHandle, GifFilePrivateType::FileState, free(), GifFilePrivateType::HashTable, malloc(), NULL, GifFileType::Private, GifFileType::UserData, VoidPtr, and GifFilePrivateType::Write.

GifFileType* EGifOpenFileHandle ( int  FileHandle  ) 

Definition at line 74 of file egif_lib.c.

References _GifError, _InitHashTable(), E_GIF_ERR_NOT_ENOUGH_MEM, GifFilePrivateType::File, FILE_STATE_WRITE, GifFilePrivateType::FileHandle, GifFilePrivateType::FileState, free(), GIF_FILE_BUFFER_SIZE, GifFilePrivateType::HashTable, malloc(), NULL, O_BINARY, GifFileType::Private, GifFileType::UserData, VoidPtr, and GifFilePrivateType::Write.

Referenced by ASImage2gif().

int EGifPutComment ( GifFileType *  GifFile,
const char *  Comment 
)

Definition at line 381 of file egif_lib.c.

References buf, COMMENT_EXT_FUNC_CODE, EGifPutExtension(), EGifPutExtensionFirst(), EGifPutExtensionLast(), EGifPutExtensionNext(), GIF_ERROR, GIF_OK, length, and NULL.

int EGifPutExtension ( GifFileType *  GifFile,
int  ExtCode,
int  ExtLen,
const VoidPtr  Extension 
)

Definition at line 506 of file egif_lib.c.

References _GifError, E_GIF_ERR_NOT_WRITEABLE, GIF_ERROR, GIF_OK, if(), IS_WRITEABLE, GifFileType::Private, and WRITE.

Referenced by ASImage2gif(), EGifPutComment(), and write_gif_saved_images().

int EGifPutExtensionFirst ( GifFileType *  GifFile,
int  ExtCode,
int  ExtLen,
const VoidPtr  Extension 
)

Definition at line 426 of file egif_lib.c.

References _GifError, E_GIF_ERR_NOT_WRITEABLE, GifFilePrivateType::File, fwrite, GIF_ERROR, GIF_OK, if(), IS_WRITEABLE, and GifFileType::Private.

Referenced by ASImage2gif(), and EGifPutComment().

int EGifPutExtensionLast ( GifFileType *  GifFile,
int  ExtCode,
int  ExtLen,
const VoidPtr  Extension 
)

Definition at line 477 of file egif_lib.c.

References _GifError, E_GIF_ERR_NOT_WRITEABLE, GifFilePrivateType::File, fwrite, GIF_ERROR, GIF_OK, if(), IS_WRITEABLE, and GifFileType::Private.

Referenced by ASImage2gif(), and EGifPutComment().

int EGifPutExtensionNext ( GifFileType *  GifFile,
int  ExtCode,
int  ExtLen,
const VoidPtr  Extension 
)

Definition at line 455 of file egif_lib.c.

References _GifError, E_GIF_ERR_NOT_WRITEABLE, GifFilePrivateType::File, fwrite, GIF_ERROR, GIF_OK, if(), IS_WRITEABLE, and GifFileType::Private.

Referenced by EGifPutComment().

int EGifPutImageDesc ( GifFileType *  GifFile,
int  Left,
int  Top,
int  Width,
int  Height,
int  Interlace,
const ColorMapObject *  ColorMap 
)

Definition at line 263 of file egif_lib.c.

References _GifError, ColorMapObject::BitsPerPixel, GifColorType::Blue, ColorMapObject::ColorCount, GifImageDesc::ColorMap, ColorMapObject::Colors, E_GIF_ERR_HAS_IMAG_DSCR, E_GIF_ERR_NO_COLOR_MAP, E_GIF_ERR_NOT_ENOUGH_MEM, E_GIF_ERR_NOT_WRITEABLE, E_GIF_ERR_WRITE_FAILED, EGifPutWord(), EGifSetupCompress(), FILE_STATE_IMAGE, GifFilePrivateType::FileState, GIF_ERROR, GIF_OK, GifColorType::Green, GifImageDesc::Height, i, if(), GifFileType::Image, GifImageDesc::Interlace, IS_WRITEABLE, GifImageDesc::Left, long, MakeMapObject(), NULL, GifFilePrivateType::PixelCount, GifFileType::Private, GifColorType::Red, GifImageDesc::Top, GifImageDesc::Width, and WRITE.

Referenced by ASImage2gif(), and write_gif_saved_images().

int EGifPutLine ( GifFileType *  GifFile,
GifPixelType *  Line,
int  LineLen 
)

Definition at line 350 of file egif_lib.c.

References _GifError, GifFilePrivateType::BitsPerPixel, CodeMask, E_GIF_ERR_DATA_TOO_BIG, E_GIF_ERR_NOT_WRITEABLE, EGifCompressLine(), GIF_ERROR, i, if(), GifFileType::Image, IS_WRITEABLE, GifFilePrivateType::PixelCount, GifFileType::Private, and GifImageDesc::Width.

Referenced by ASImage2gif(), and write_gif_saved_images().

int EGifPutScreenDesc ( GifFileType *  GifFile,
int  Width,
int  Height,
int  ColorRes,
int  BackGround,
const ColorMapObject *  ColorMap 
)

Definition at line 181 of file egif_lib.c.

References _GifError, ColorMapObject::BitsPerPixel, GifColorType::Blue, ColorMapObject::ColorCount, ColorMapObject::Colors, E_GIF_ERR_HAS_SCRN_DSCR, E_GIF_ERR_NOT_ENOUGH_MEM, E_GIF_ERR_NOT_WRITEABLE, E_GIF_ERR_WRITE_FAILED, EGifPutWord(), FILE_STATE_SCREEN, GifFilePrivateType::FileState, GIF_ERROR, GIF_OK, GifVersionPrefix, GifVersionPrefixLen, GifColorType::Green, i, if(), IS_WRITEABLE, MakeMapObject(), NULL, GifFileType::Private, GifColorType::Red, GifFileType::SBackGroundColor, GifFileType::SColorMap, GifFileType::SColorResolution, GifFileType::SHeight, GifFileType::SWidth, and WRITE.

Referenced by ASImage2gif().

static int EGifPutWord ( int  Word,
GifFileType *  GifFile 
) [static]

Definition at line 583 of file egif_lib.c.

References c, GIF_ERROR, GIF_OK, and WRITE.

Referenced by EGifPutImageDesc(), and EGifPutScreenDesc().

void EGifSetGifVersion ( const char *  Version  ) 

Definition at line 172 of file egif_lib.c.

References GIF_VERSION_POS, and GifVersionPrefix.

static int EGifSetupCompress ( GifFileType *  GifFile  )  [static]

Definition at line 602 of file egif_lib.c.

References _ClearHashTable(), _GifError, ColorMapObject::BitsPerPixel, GifFilePrivateType::BitsPerPixel, GifFilePrivateType::Buf, GifFilePrivateType::ClearCode, GifImageDesc::ColorMap, GifFilePrivateType::CrntCode, GifFilePrivateType::CrntShiftDWord, GifFilePrivateType::CrntShiftState, E_GIF_ERR_DISK_IS_FULL, E_GIF_ERR_NO_COLOR_MAP, EGifCompressOutput(), GifFilePrivateType::EOFCode, FIRST_CODE, GIF_ERROR, GIF_OK, GifFilePrivateType::HashTable, if(), GifFileType::Image, GifFilePrivateType::MaxCode1, GifFileType::Private, GifFilePrivateType::RunningBits, GifFilePrivateType::RunningCode, GifFileType::SColorMap, and WRITE.

Referenced by EGifPutImageDesc().

Variable Documentation

GifPixelType CodeMask[] [static]

Initial value:

 {
    0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff
}

Definition at line 49 of file egif_lib.c.

Referenced by EGifPutLine().

unsigned char GifVersionPrefix[GIF_STAMP_LEN+1] = GIF87_STAMP [static]

Definition at line 53 of file egif_lib.c.

Referenced by EGifPutScreenDesc(), and EGifSetGifVersion().

int GifVersionPrefixLen = GIF_STAMP_LEN [static]

Definition at line 54 of file egif_lib.c.

Referenced by EGifPutScreenDesc().

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