xref: /aosp_15_r20/external/giflib/getarg.h (revision 324bb76b8d05e2a05aa88511fff61cf3f9ca5892)

/***************************************************************************

getarg.h - Support routines for the giflib utilities

SPDX-License-Identifier: MIT

 **************************************************************************/

#ifndef _GETARG_H
#define _GETARG_H

#include "gif_lib.h"
#include <stdbool.h>

#define VERSION_COOKIE " Version %d.%d, "

/***************************************************************************
   Error numbers as returned by GAGetArg routine:
***************************************************************************/
#define CMD_ERR_NotAnOpt 1  /* None Option found. */
#define CMD_ERR_NoSuchOpt 2 /* Undefined Option Found. */
#define CMD_ERR_WildEmpty 3 /* Empty input for !*? seq. */
#define CMD_ERR_NumRead 4   /* Failed on reading number. */
#define CMD_ERR_AllSatis 5  /* Fail to satisfy (must-'!') option. */

bool GAGetArgs(int argc, char **argv, char *CtrlStr, ...);
void GAPrintErrMsg(int Error);
void GAPrintHowTo(char *CtrlStr);

/******************************************************************************
 From qprintf.c
******************************************************************************/
extern void GifQprintf(char *Format, ...);
extern void PrintGifError(int ErrorCode);

/******************************************************************************
 Color table quantization
******************************************************************************/
int GifQuantizeBuffer(unsigned int Width, unsigned int Height,
                      int *ColorMapSize, GifByteType *RedInput,
                      GifByteType *GreenInput, GifByteType *BlueInput,
                      GifByteType *OutputBuffer, GifColorType *OutputColorMap);

/* These used to live in the library header */
#define GIF_MESSAGE(Msg) fprintf(stderr, "\n%s: %s\n", PROGRAM_NAME, Msg)
#define GIF_EXIT(Msg)                                                          \
	{                                                                      \
		GIF_MESSAGE(Msg);                                              \
		exit(-3);                                                      \
	}

#endif /* _GETARG_H */

/* end */