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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include "hdf5.h"
#include "H5IMpublic.h"
/*-------------------------------------------------------------------------
* Program: h52gifgentst
*
* Purpose: generate files for h52gif testing
*
* Programmer: Pedro Vicente
*
* Date: March 15, 2007
*
*-------------------------------------------------------------------------
*/
#define FILENAME "h52giftst.h5"
#define WIDTH 400
#define HEIGHT 200
#define PAL_ENTRIES 256
#define IMAGE1_NAME "image"
#define PAL_NAME "palette"
/*-------------------------------------------------------------------------
* Function: main
*
* Purpose: main program
*
*-------------------------------------------------------------------------
*/
int
main(void)
{
hid_t fid;
int i, j, n, space;
unsigned char *buf;
unsigned char pal[PAL_ENTRIES * 3]; /* palette array */
hsize_t pal_dims[2] = {PAL_ENTRIES, 3}; /* palette dimensions */
hsize_t width = WIDTH;
hsize_t height = HEIGHT;
/* Allocate buffer */
if (NULL == (buf = (unsigned char *)malloc(WIDTH * HEIGHT)))
return EXIT_FAILURE;
/* create a file */
if ((fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
return EXIT_FAILURE;
/* create an image */
space = WIDTH * HEIGHT / PAL_ENTRIES;
for (i = 0, j = 0, n = 0; i < WIDTH * HEIGHT; i++, j++) {
buf[i] = (unsigned char)n;
if (j > space) {
n++;
j = 0;
}
}
/* make the image */
if (H5IMmake_image_8bit(fid, IMAGE1_NAME, width, height, buf) < 0)
return EXIT_FAILURE;
/*-------------------------------------------------------------------------
* define a palette, blue to red tones
*-------------------------------------------------------------------------
*/
for (i = 0, n = 0; i < PAL_ENTRIES * 3; i += 3, n++) {
pal[i] = (unsigned char)n; /* red */
pal[i + 1] = (unsigned char)0; /* green */
pal[i + 2] = (unsigned char)(255 - n); /* blue */
}
/* make a palette */
if (H5IMmake_palette(fid, PAL_NAME, pal_dims, pal) < 0)
return EXIT_FAILURE;
/* attach the palette to the image */
if (H5IMlink_palette(fid, IMAGE1_NAME, PAL_NAME) < 0)
return EXIT_FAILURE;
if (H5Fclose(fid) < 0)
return EXIT_FAILURE;
free(buf);
return EXIT_SUCCESS;
}
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