[svn-r4012] Purpose:

    Clean up compiler warnings.
Description:
    Just code neatening mostly, some casts, etc.
Platforms tested:
    FreeBSD 4.3 (hawkwind)

9 files changed, 68 insertions, 112 deletions

diff --git a/hl/tools/gif2h5/decompress.c b/hl/tools/gif2h5/decompress.c
index 18dbb3e..abccb7f 100644
--- a/hl/tools/gif2h5/decompress.c
+++ b/hl/tools/gif2h5/decompress.c
@@ -19,13 +19,8 @@ static int BitOffset = 0,	/* Bit Offset of next code */
 XC = 0, YC = 0,				/* Output X and Y coords of current pixel */
 Pass = 0,					/* Used by output routine if WORDerlaced pic */
 OutCount = 0,				/* Decompressor output 'stack count' */
-RWidth, RHeight,			/* screen dimensions */
 IWidth, IHeight,			/* image dimensions */
-LeftOfs, TopOfs,			/* image offset */
-BitsPerPixel,				/* Bits per pixel, read from GIF header */
 BytesPerScanline,			/* Bytes per scanline in output raster */
-ColorMapSize,				/* number of colors */
-Background,					/* background color */
 CodeSize,					/* Code size, read from GIF header */
 InitCodeSize,				/* Starting code size, used during Clear */
 Code,						/* Value returned by ReadCode */
@@ -73,7 +68,7 @@ int  numused;
 * three BYTEs, compute the bit Offset WORDo our 24-bit chunk, shift to
 * bring the desired code to the bottom, then mask it off and return it. 
 */
-ReadCode()
+static int ReadCode(void)
 {
 	int RawCode, ByteOffset;
 	
@@ -87,8 +82,7 @@ ReadCode()
 }
 
 
-AddToPixel(Index)
-BYTE Index;
+static void AddToPixel(BYTE Index)
 {
     if (YC<IHeight)
         *(Image + YC * BytesPerScanline + XC) = Index;
@@ -202,7 +196,7 @@ GIFHEAD      *GifHead;
 	
 	/* Allocate the Image */
 	
-	if (!(Image = (BYTE *)malloc(IWidth*IHeight))) {
+	if (!(Image = (BYTE *)malloc((size_t)IWidth*(size_t)IHeight))) {
 		printf("Out of memory");
 		exit(-1);
 	}
diff --git a/hl/tools/gif2h5/gif.h b/hl/tools/gif2h5/gif.h
index f697881..3f2a8da 100644
--- a/hl/tools/gif2h5/gif.h
+++ b/hl/tools/gif2h5/gif.h
@@ -169,7 +169,6 @@ int WriteHDF(GIFTOMEM , CHAR * , CHAR *);
 */
 int ReadHDF(BYTE** data , BYTE palette[256][3] , hsize_t *image_size , CHAR *h5_file , CHAR *dset_name , CHAR *pal_name);
 
-BYTE *ReadDataSubBlocks(BYTE ** , WORD *);
 BYTE *Decompress (GIFIMAGEDESC * , GIFHEAD *);
 BYTE GetByte(BYTE *);
 WORD GetWord(BYTE *);
diff --git a/hl/tools/gif2h5/gif2hdf.c b/hl/tools/gif2h5/gif2hdf.c
index 0211143..6b4ae2b 100644
--- a/hl/tools/gif2h5/gif2hdf.c
+++ b/hl/tools/gif2h5/gif2hdf.c
@@ -3,10 +3,9 @@
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
+
 int
-main(argv , argc)
-int argv;
-char *argc[];
+main(int argv , char *argc[])
 {
 	
 	GIFTOMEM GifMemoryStruct;
@@ -60,11 +59,11 @@ char *argc[];
 	filesize = ftell(fpGif);
 	fseek(fpGif, 0L , 0);
 	if (filesize == 0) printf("File Size Zero");
-	if (!(MemGif = StartPos = (BYTE *)malloc(filesize))) {
+	if (!(MemGif = StartPos = (BYTE *)malloc((size_t)filesize))) {
 		printf("Out of memory");
 		exit (-1);
 	}
-	if (fread(MemGif,filesize,1,fpGif) != 1) {
+	if (fread(MemGif,(size_t)filesize,1,fpGif) != 1) {
 		printf("Corrupted Input File");
 		exit(-1);
 	}
diff --git a/hl/tools/gif2h5/gif2mem.c b/hl/tools/gif2h5/gif2mem.c
index 92ca8e5..830eba7 100644
--- a/hl/tools/gif2h5/gif2mem.c
+++ b/hl/tools/gif2h5/gif2mem.c
@@ -25,7 +25,6 @@
 /* #include <hdf.h> */
 
 #define VERSION                     "1.00"
-extern int EndianOrder;
 
 GIFTOMEM
 Gif2Mem(MemGif)
diff --git a/hl/tools/gif2h5/gifread.c b/hl/tools/gif2h5/gifread.c
index 1196241..cb033d9 100644
--- a/hl/tools/gif2h5/gifread.c
+++ b/hl/tools/gif2h5/gifread.c
@@ -3,14 +3,14 @@
 #include "gif.h"                  
 
 int EndianOrder;
-int i;
 
+static BYTE * ReadDataSubBlocks(BYTE **MemGif2, WORD *DSize);
 
 WORD 
 GetWord (MemGif)
 BYTE *MemGif;
 {
-	register WORD w;
+	WORD w;
 	if (EndianOrder == 1) /* LittleEndian */
 	{
 		w  = (WORD) (*MemGif++ & 0xFF);
@@ -46,14 +46,14 @@ ReadGifHeader(GifHead, MemGif2)
 GIFHEAD *GifHead;       /* Pointer to GIF header structure  */
 BYTE    **MemGif2;       /* GIF image file input FILE stream */
 {
-    register WORD i;    /* Loop counter                                */
+    WORD i;    /* Loop counter                                */
     WORD tableSize;     /* Number of entires in the Global Color Table */
 	
 	GifHead->TableSize = 0;
 	for (i = 0 ; i < 6 ; i++) {
 		GifHead->HeaderDump[i] = *(*MemGif2)++;
 	}
-	if (strncmp(GifHead->HeaderDump , "GIF" , 3)) {
+	if (strncmp((const char *)GifHead->HeaderDump , "GIF" , 3)) {
 		printf("The file does not appear to be a valid GIF file.\n");
 		exit(-1);
 	}
@@ -114,9 +114,9 @@ ReadGifImageDesc(GifImageDesc, MemGif2)
 GIFIMAGEDESC *GifImageDesc; /* Pointer to GIF image descriptor structure  */
 BYTE         **MemGif2;     /* GIF image file input FILE stream           */
 {
-    register WORD i;        /* Loop counter                               */
+    WORD i;        /* Loop counter                               */
     WORD tableSize;         /* Number of entries in the Local Color Table */
-	BYTE Interlace;         /* PackedField & 0x20 gives information on interlacing */
+	/* BYTE Interlace; */         /* PackedField & 0x20 gives information on interlacing */
 	BYTE *TempPtr;
 	int	 ch , ch1;
 
@@ -210,11 +210,11 @@ ReadGifGraphicControl(GifGraphicControl, MemGif2)
 GIFGRAPHICCONTROL *GifGraphicControl; /* Pointer to GC Extension structure */
 BYTE              **MemGif2;          /* GIF image file input FILE stream  */
 {
+    int i;
 
-    
-	for (i = 0 ; i < 5 ; i++) {
-		GifGraphicControl->GCEDump[i] = *(*MemGif2)++;
-	}
+    for (i = 0 ; i < 5 ; i++) {
+            GifGraphicControl->GCEDump[i] = *(*MemGif2)++;
+    }
 
     return(0);          /* No FILE stream error occured */
 }
@@ -234,6 +234,8 @@ ReadGifPlainText(GifPlainText, MemGif2)
 GIFPLAINTEXT *GifPlainText; /* Pointer to Plain Text Extension structure */
 BYTE         **MemGif2;       /* GIF image file input FILE stream          */
 {
+    int i;
+
 	for (i = 0 ; i < 13 ; i++) {
 		GifPlainText->PTEDump[i] = *(*MemGif2)++;
 	}
@@ -270,6 +272,8 @@ ReadGifApplication(GifApplication, MemGif2)
 GIFAPPLICATION *GifApplication; /* Pointer to Application Extension structure */
 BYTE           **MemGif2;          /* GIF image file input FILE stream           */
 {
+    int i;
+
 	for (i = 0 ; i < 12 ; i++) {
 		GifApplication->AEDump[i] = *(*MemGif2)++;
 	}
@@ -327,9 +331,8 @@ BYTE       **MemGif2;      /* GIF image file input FILE stream           */
 **           otherwise a valid pointer if no error occured.
 */
 static BYTE *
-ReadDataSubBlocks(MemGif2 , DSize)
-BYTE **MemGif2;        /* GIF image file input FILE stream              */
-WORD *DSize;
+ReadDataSubBlocks(BYTE **MemGif2, /* GIF image file input FILE stream              */
+    WORD *DSize)
 {
     BYTE *ptr1;     /* Pointer used to "walk the heap"               */
     BYTE *ptr2;     /* Pointer used to mark the top of the heap      */
@@ -342,7 +345,7 @@ WORD *DSize;
     dataSize = *(*MemGif2)++;		/* Get the size of the first sub-block */
 	
     /* Allocate initial data buffer */
-    if (!(ptr1 = ptr2 = (BYTE *) malloc(dataSize + 1))) {
+    if (!(ptr1 = ptr2 = (BYTE *) malloc((size_t)dataSize + 1))) {
 		printf("Out of memory. Allocation of memory for data sub-blocks for\neither Comment, Plain Text or Application Extensions failed");
         return((BYTE *) NULL);
 	}
@@ -352,7 +355,9 @@ WORD *DSize;
         bufSize += (dataSize);  /* Running total of the buffer size */
 		*DSize = bufSize;
 
-        /* *ptr1++ = dataSize;			/* Write the data count */
+#ifdef COMMENTED_OUT
+        *ptr1++ = dataSize;			/* Write the data count */
+#endif /* COMMENTED_OUT */
         while (dataSize--)			/* Read/write the Plain Text data */
              *ptr1++ = *(*MemGif2)++;
         
@@ -370,7 +375,9 @@ WORD *DSize;
 	
     }
 
-    /**ptr1++ = (BYTE) NULL;			/* Add NULL to simulate Terminator value */
+#ifdef COMMENTED_OUT
+    *ptr1++ = (BYTE) NULL;			/* Add NULL to simulate Terminator value */
+#endif /* COMMENTED_OUT */
    	*ptr1++ = '\0';
 	
     return(ptr2);					/* Return a pointer to the sub-block data */
diff --git a/hl/tools/gif2h5/hdf2gif.c b/hl/tools/gif2h5/hdf2gif.c
index 9c4133e..39c75d1 100644
--- a/hl/tools/gif2h5/hdf2gif.c
+++ b/hl/tools/gif2h5/hdf2gif.c
@@ -19,16 +19,18 @@ extern int hdfWriteGIF(FILE *fp, BYTE *pic, int ptype, int w, int h, BYTE *rmap,
 
 int EndianOrder;
 
-void PutByte(BYTE b , FILE *fpGif)
+#ifdef NOT_USED
+static void PutByte(BYTE b , FILE *fpGif)
 {
 	if (fputc(b , fpGif) == EOF) {
 		printf("File Writing Error, cannot continue");
 		exit(-1);
 	}
 }
+#endif /* NOT_USED */
 
 
-void putword(int w, FILE *fp)
+static void putword(int w, FILE *fp)
 {
 	/* writes a 16-bit integer in GIF order (LSB first) */
 	
@@ -37,7 +39,8 @@ void putword(int w, FILE *fp)
 	fputc((w>>8)&0xff,fp);
 }
 
-void usage() {
+static void usage(void )
+{
 	printf("Usage: h52gif <h5_file> <gif_file> -i <h5_image> [-p <h5_palette>]\n");
 	printf("h52gif expects *at least* one h5_image. You may repeat -i <h5_image> [-p <h5_palette>] at most 50 times (maximum of 50 images).\n");
 }
@@ -53,8 +56,6 @@ int main(int argc , char **argv) {
 	
 	CHAR *HDFName = NULL;
 	CHAR *GIFName = NULL;
-	CHAR *image_path = NULL;
-	CHAR *pal_path = NULL;
 	/* reference variables */
 	
 	int has_local_palette; /* treated as a flag */
@@ -76,7 +77,7 @@ int main(int argc , char **argv) {
 	int   CountDown;
 	int   curx , cury;
 	int   time_out = 0;		/* time between two images in the animation */
-	int   n_images , index;
+	int   n_images , idx;
 	
 	BYTE pc2nc[256] , r1[256] , g1[256] , b1[256];
 	
@@ -172,7 +173,7 @@ int main(int argc , char **argv) {
 	n_images = number_of_images;
 
 	Background = 0;
-	for (index = 0 ; index < n_images ; index++) {
+	for (idx = 0 ; idx < n_images ; idx++) {
 		
 		/* try to read the image and the palette */
 		/* Lots of funky stuff to support multiple images has been taken off.
@@ -183,7 +184,7 @@ int main(int argc , char **argv) {
 		** to write the global palette out and then independantly write the smaller local 
 		** palettes
 		*/
-		if (ReadHDF(&Image , GlobalPalette , dim_sizes , HDFName , image_name_arr[index] , pal_name_arr[index]) < 0) {
+		if (ReadHDF(&Image , GlobalPalette , dim_sizes , HDFName , image_name_arr[idx] , pal_name_arr[idx]) < 0) {
 			fprintf(stderr , "Unable to read HDF file\n");
 			return -1;
 		}
@@ -257,7 +258,7 @@ int main(int argc , char **argv) {
 		/* If it is the first image we do all the header stuff that isn't required for the
 		** rest of the images. 
         */
-		if (index == 0) {
+		if (idx == 0) {
 			/* Write out the GIF header and logical screen descriptor */
 			if (n_images > 1) {
 				fwrite("GIF89a", 1, 6, fpGif);    /* the GIF magic number */
@@ -331,7 +332,7 @@ int main(int argc , char **argv) {
 
 		fputc (InitCodeSize , fpGif);
 		
-		i = hdfWriteGIF(fpGif , Image , 0 , dim_sizes[0] , dim_sizes[1] , r1, g1 , b1 , pc2nc , 256 , 8 , BitsPerPixel);
+		i = hdfWriteGIF(fpGif , Image , 0 , (int)dim_sizes[0] , (int)dim_sizes[1] , r1, g1 , b1 , pc2nc , 256 , 8 , BitsPerPixel);
 		fputc(0x00 , fpGif);		
 		free (Image);
 	} 
diff --git a/hl/tools/gif2h5/hdfgifwr.c b/hl/tools/gif2h5/hdfgifwr.c
index 28d556e..62b3eae 100644
--- a/hl/tools/gif2h5/hdfgifwr.c
+++ b/hl/tools/gif2h5/hdfgifwr.c
@@ -67,7 +67,6 @@ static long CountDown;
 static int  Interlace;
 
 #ifdef __STDC__
-static void putword(int, FILE *);
 static void compress(int, FILE *, byte *, int);
 static void output(int);
 static void cl_block(void);
@@ -76,27 +75,16 @@ static void char_init(void);
 static void char_out(int);
 static void flush_char(void);
 #else
-static void putword(), compress(), output(), cl_block(), cl_hash();
+static void compress(), output(), cl_block(), cl_hash();
 static void char_init(), char_out(), flush_char();
 #endif
 
 static byte pc2nc[256],r1[256],g1[256],b1[256];
 
-void xvbzero(s, len)
-     char *s;
-     int   len;
-{
-  for ( ; len>0; len--) *s++ = 0;
-}
-
 /*************************************************************/
-int hdfWriteGIF(fp, pic, ptype, w, h, rmap, gmap, bmap, pc2ncmap,  numcols, colorstyle, BitsPerPixel)
-    FILE *fp;
-    byte *pic;
-    int   ptype, w,h;
-    byte *rmap, *gmap, *bmap , *pc2ncmap;
-    int   numcols, colorstyle;
-    int	  BitsPerPixel;
+int hdfWriteGIF(FILE *fp, byte *pic, int ptype, int w, int h, byte *rmap,
+    byte *gmap, byte *bmap, byte *pc2ncmap,  int numcols, int colorstyle,
+    int BitsPerPixel)
 {
   int   RWidth, RHeight;
   int   LeftOfs, TopOfs;
@@ -143,21 +131,6 @@ int hdfWriteGIF(fp, pic, ptype, w, h, rmap, gmap, bmap, pc2ncmap,  numcols, colo
 
 
 
-/******************************/
-static void putword(w, fp)
-int w;
-FILE *fp;
-{
-  /* writes a 16-bit integer in GIF order (LSB first) */
-  
-  fputc(w &0xff, fp);
-    
-  fputc((w>>8)&0xff,fp);
-}
-
-
-
-
 /***********************************************************************/
 static unsigned long cur_accum = 0;
 static int           cur_bits = 0;
@@ -252,8 +225,8 @@ int   len;
   /* initialize 'compress' globals */
   maxbits = XV_BITS;
   maxmaxcode = 1<<XV_BITS;
-  xvbzero((char *) htab,    sizeof(htab));
-  xvbzero((char *) codetab, sizeof(codetab));
+  memset(htab, 0, sizeof(htab));
+  memset(codetab, 0, sizeof(codetab));
   hsize = HSIZE;
   free_ent = 0;
   clear_flg = 0;
@@ -375,7 +348,7 @@ int code;
   cur_bits += n_bits;
 
   while( cur_bits >= 8 ) {
-    char_out( (unsigned int) (cur_accum & 0xff) );
+    char_out( (int)((unsigned int) cur_accum & 0xff) );
     cur_accum >>= 8;
     cur_bits -= 8;
   }
@@ -403,7 +376,7 @@ int code;
   if( code == EOFCode ) {
     /* At EOF, write the rest of the buffer */
     while( cur_bits > 0 ) {
-      char_out( (unsigned int)(cur_accum & 0xff) );
+      char_out( (int)((unsigned int)cur_accum & 0xff) );
       cur_accum >>= 8;
       cur_bits -= 8;
     }
@@ -434,14 +407,14 @@ static void cl_block ()             /* table clear for block compress */
 
 
 /********************************/
-static void cl_hash(hsize)          /* reset code table */
-register count_int hsize;
+static void cl_hash(hashsize)          /* reset code table */
+count_int hashsize;
 {
-  register count_int *htab_p = htab+hsize;
-  register long i;
-  register long m1 = -1;
+  count_int *htab_p = htab+hashsize;
+  long i;
+  long m1 = -1;
 
-  i = hsize - 16;
+  i = hashsize - 16;
   do {                            /* might use Sys V memset(3) here */
     *(htab_p-16) = m1;
     *(htab_p-15) = m1;
@@ -495,8 +468,7 @@ static char accum[ 256 ];
  * Add a character to the end of the current packet, and if it is 254
  * characters, flush the packet to disk.
  */
-static void char_out(c)
-int c;
+static void char_out(int c)
 {
   accum[ a_count++ ] = c;
   if( a_count >= 254 ) 
@@ -510,7 +482,7 @@ static void flush_char()
 {
   if( a_count > 0 ) {
     fputc( a_count, g_outfile );
-    fwrite( accum, 1, a_count, g_outfile );
+    fwrite( accum, 1, (size_t)a_count, g_outfile );
     a_count = 0;
   }
 }	
diff --git a/hl/tools/gif2h5/readhdf.c b/hl/tools/gif2h5/readhdf.c
index a7101c9..52a1837 100644
--- a/hl/tools/gif2h5/readhdf.c
+++ b/hl/tools/gif2h5/readhdf.c
@@ -35,14 +35,10 @@ int ReadHDF(BYTE** data ,
 	herr_t status;	/* status variable */
 	hid_t dspace;	/* dataspace identifier for the the dataset */
 	hid_t dset;		/* dataset identifier */
-
 	hid_t pal_set;	/* dataset for palette */
 	hid_t pal_space;/* dataspace for palette */
-	hsize_t pal_size;	/* size of the palette */
-	
 	hsize_t datasize;	/* size of the image */
 	hsize_t maxdims;	/* dummy */
-
 	int pal_exist = 0;	/* do we have a palette? */
 
 	/* check stuff */
@@ -85,7 +81,7 @@ int ReadHDF(BYTE** data ,
 	datasize = image_size[0] * image_size[1];
 
 	/* allocate memory to store the image */
-	if ((*data = (BYTE*) malloc(datasize)) == NULL) {
+	if ((*data = (BYTE*) malloc((size_t)datasize)) == NULL) {
 		fprintf(stderr , "Out of memory, exiting");
 		return -1;
 	}
@@ -98,11 +94,8 @@ int ReadHDF(BYTE** data ,
 	}
 
 	if (pal_exist) {
-		hsize_t pal_size[2];
-		hsize_t max_pal_dims[2];
+		hsize_t loc_pal_size[2];
 		hsize_t pal_datasize;
-		CHAR *pal_path;
-
 		BYTE *temp_buf;
 		hsize_t temp_size;
 
@@ -121,19 +114,19 @@ int ReadHDF(BYTE** data ,
 		}
 		
 		/* get the dimension size of the palette. */
-		if (H5Sget_simple_extent_dims(pal_space , pal_size , &max_pal_dims) !=2 ) {
+		if (H5Sget_simple_extent_dims(pal_space , loc_pal_size , NULL) !=2 ) {
 			fprintf(stderr , "Unable to get dimension info\n");
 			pal_exist = 0;
 			return -1;
 		}
 		
 		/* size needed to store the image */
-		pal_datasize = pal_size[0] * pal_size[1];
+		pal_datasize = loc_pal_size[0] * loc_pal_size[1];
 		
 		/* copy stuff into a temp buffer and then copy 256*3 elements to palette */
 		temp_size = H5Dget_storage_size(pal_set);
 		
-		temp_buf = (BYTE*) malloc (temp_size * sizeof(BYTE));
+		temp_buf = (BYTE*) malloc ((size_t)temp_size * sizeof(BYTE));
 
 		/* make sure that the palette is actually 256 X 3 so that we don't create overflows */
 		if (pal_datasize > 256 * 3)
@@ -152,7 +145,7 @@ int ReadHDF(BYTE** data ,
 		}
 
 		/* copy stuff into the actual palette */
-		memcpy(palette , temp_buf , pal_datasize);
+		memcpy(palette , temp_buf , (size_t)pal_datasize);
 
 		/* get rid of the temp memory */
 		cleanup(temp_buf);
diff --git a/hl/tools/gif2h5/writehdf.c b/hl/tools/gif2h5/writehdf.c
index 7afccdf..5426c27 100644
--- a/hl/tools/gif2h5/writehdf.c
+++ b/hl/tools/gif2h5/writehdf.c
@@ -7,7 +7,8 @@
 ** Function:	write_text_attribute
 ** Use:			Just a small wrapper to write text attributes easily
 ********************************************************************/
-int write_text_attribute(hid_t dataset_id , char *attr_name , char *attr_value) {
+static int write_text_attribute(hid_t dataset_id , const char *attr_name , const char *attr_value)
+{
 	
 	/* variables for the attributes */
 	hsize_t attr_dims_size;		/* dimensions for the attribute */
@@ -26,7 +27,7 @@ int write_text_attribute(hid_t dataset_id , char *attr_name , char *attr_value)
 
 	/* set the type to string */
 	attr_type_id = H5Tcopy(H5T_C_S1);
-	H5Tset_size(attr_type_id , attr_dims_size);
+	H5Tset_size(attr_type_id , (size_t)attr_dims_size);
 
 	/* create the dataspace for the attribute */
 	attr_dataspace_id = H5Screate_simple(1 , &attr_dims_size , NULL);
@@ -59,18 +60,14 @@ char     *HDFName;
 char     *GIFFileName;
 {
 	GIFHEAD            gifHead;           /* GIF Header structure            */
-    GIFIMAGEDESC*	   gifImageDesc;      /* Logical Image Descriptor struct */
+        GIFIMAGEDESC*	   gifImageDesc;      /* Logical Image Descriptor struct */
 
 	long ImageCount ,			/* number of images */
 		CommentCount,			/* number of comments */
 		ApplicationCount ,		/* number of application extensions */
 		PlainTextCount;			/* number of plain text extensions */
 
-	char ImageName[256],		/* Image name for the GR Image */
-		CommentName[256],
-		ApplicationName[256],
-		PlainTextName[256];
-	
+	char ImageName[256];		/* Image name for the GR Image */
 	char GroupName[VSNAMELENMAX];	/* so that we can name the subgroups appropriately */
 	
 	/* H5 variables */
@@ -82,11 +79,6 @@ char     *GIFFileName;
 	
 	/* temp counter */
 	int i;
-
-	
-	
-	
-	
 	
 	/* get the GIFMem stuff */
 	gifHead = *(GifMemoryStruct.GifHeader);