1 files changed, 114 insertions, 0 deletions
diff --git a/tools/gifconv/gif2hdf.c b/tools/gifconv/gif2hdf.c
new file mode 100644
index 0000000..0211143
--- /dev/null
+++ b/tools/gifconv/gif2hdf.c
@@ -0,0 +1,114 @@
+/* #include <hdf.h> */
+#include "gif.h"
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+int
+main(argv , argc)
+int argv;
+char *argc[];
+{
+	
+	GIFTOMEM GifMemoryStruct;
+	GIFIMAGEDESC gifImageDesc;
+
+	FILE *fpGif;
+	
+	/* replacing int32 with long */
+	long i,ImageCount;
+	long filesize;
+
+	BYTE *MemGif;
+	BYTE *StartPos;
+
+	/* VSNAMELENMAX is a carryover from HDF4 and is #defined to 256 in gif.h */
+	char GIFFileName[VSNAMELENMAX];
+	char HDFFileName[VSNAMELENMAX];
+
+	/* Initialize all GifMemoryStruct pointers to null
+	** to prevent hassles later on
+	*/
+	GifMemoryStruct.GifHeader                  = NULL;
+	GifMemoryStruct.GifImageDesc               = NULL;
+	GifMemoryStruct.GifGraphicControlExtension = NULL;
+	GifMemoryStruct.GifPlainTextExtension      = NULL;
+	GifMemoryStruct.GifApplicationExtension    = NULL;
+	GifMemoryStruct.GifCommentExtension        = NULL;
+	
+	
+	if (argv<3)
+	{
+		printf("\n\nWrong Usage. Use:\ngif2hdf <GIFFILE> <HDFFILE>\n\n");
+		return(-1);
+	}
+	
+	
+
+	strncpy(GIFFileName , argc[1] , VSNAMELENMAX - 1);
+	strncpy(HDFFileName , argc[2] , VSNAMELENMAX - 1);
+	GIFFileName[VSNAMELENMAX - 1] = '\0';
+	HDFFileName[VSNAMELENMAX - 1] = '\0';
+
+	if (!(fpGif = fopen(GIFFileName,"rb"))) {
+		printf("Unable to open GIF file for reading.\n");
+		printf("Filename (including path) must be less than %d charachters in length\n",VSNAMELENMAX);
+		exit(-1);
+	}
+
+	/* Get the whole file into memory. Mem's much faster than I/O */
+	fseek(fpGif, 0L , 2);
+	filesize = ftell(fpGif);
+	fseek(fpGif, 0L , 0);
+	if (filesize == 0) printf("File Size Zero");
+	if (!(MemGif = StartPos = (BYTE *)malloc(filesize))) {
+		printf("Out of memory");
+		exit (-1);
+	}
+	if (fread(MemGif,filesize,1,fpGif) != 1) {
+		printf("Corrupted Input File");
+		exit(-1);
+	}
+
+	fseek(fpGif,0L,0);
+
+	/*
+	** Call Gif2Mem and break the whole file into parts.
+	** Gif2Mem also calls decompresses the images so we don't 
+	** have to worry about that
+	*/
+	GifMemoryStruct = Gif2Mem(MemGif);
+	if (ferror(fpGif)) {
+		printf("File Stream Error\n\n");
+		exit(-1);
+	}
+	fclose(fpGif);
+	
+	/* Call WriteHDF from here. Go ahead and change WriteHDF to write 
+	** whatever format you want
+	*/
+	if (WriteHDF(GifMemoryStruct , argc[2] , argc[1]))
+		printf("HDF Write Error\n\n");
+	
+	/* Free all buffers */
+	/* replacing int32 with long */
+	ImageCount = (long)((GifMemoryStruct.GifHeader)->ImageCount);
+
+	for(i = 0 ; i < ImageCount ; i++)
+	{
+		gifImageDesc = *(GifMemoryStruct.GifImageDesc[i]);
+		if (gifImageDesc.Image != NULL)
+			free(gifImageDesc.Image);
+	
+		if (GifMemoryStruct.GifGraphicControlExtension[i] != NULL)
+			free(GifMemoryStruct.GifGraphicControlExtension[i]);
+		
+	}
+	free(StartPos);
+
+	free (GifMemoryStruct.GifHeader);
+	
+	if (GifMemoryStruct.GifApplicationExtension != NULL)
+		free (GifMemoryStruct.GifApplicationExtension);
+
+	return (0);
+}