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-rw-r--r--hl/examples/ex_image2.c274
1 files changed, 134 insertions, 140 deletions
diff --git a/hl/examples/ex_image2.c b/hl/examples/ex_image2.c
index 5abf723..2a38430 100644
--- a/hl/examples/ex_image2.c
+++ b/hl/examples/ex_image2.c
@@ -16,90 +16,89 @@
#include <stdlib.h>
#include <string.h>
-#define DATA_FILE1 "image8.txt"
-#define DATA_FILE2 "image24pixel.txt"
-#define IMAGE1_NAME "image8bit"
-#define IMAGE2_NAME "image24bitpixel"
-#define PAL_NAME "palette"
-#define PAL_ENTRIES 256
-
-static int read_data(const char* file_name, hsize_t *width, hsize_t *height );
-unsigned char *gbuf = NULL; /* global buffer for image data */
-
-int main( void )
+#define DATA_FILE1 "image8.txt"
+#define DATA_FILE2 "image24pixel.txt"
+#define IMAGE1_NAME "image8bit"
+#define IMAGE2_NAME "image24bitpixel"
+#define PAL_NAME "palette"
+#define PAL_ENTRIES 256
+
+static int read_data(const char *file_name, hsize_t *width, hsize_t *height);
+unsigned char *gbuf = NULL; /* global buffer for image data */
+
+int
+main(void)
{
- hid_t file_id; /* HDF5 file identifier */
- hsize_t width; /* width of image */
- hsize_t height; /* height of image */
- unsigned char pal[ PAL_ENTRIES * 3 ]; /* palette array */
- hsize_t pal_dims[2] = {PAL_ENTRIES,3}; /* palette dimensions */
- herr_t i, n;
-
- /* create a new HDF5 file using default properties. */
- file_id = H5Fcreate( "ex_image2.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT );
-
- /* read first data file */
- if (read_data(DATA_FILE1,&width,&height)<0)
- goto out;
-
- /* make the image */
- H5IMmake_image_8bit( file_id, IMAGE1_NAME, width, height, gbuf );
- if (gbuf) {
- free(gbuf);
- gbuf = NULL;
- }
-
-/*-------------------------------------------------------------------------
- * define a palette, blue to red tones
- *-------------------------------------------------------------------------
- */
- for ( i=0, n=0; i<PAL_ENTRIES*3; i+=3, n++)
- {
- pal[i] =n; /* red */
- pal[i+1]=0; /* green */
- pal[i+2]=255-n; /* blue */
- }
-
- /* make a palette */
- H5IMmake_palette( file_id, PAL_NAME, pal_dims, pal );
-
- /* attach the palette to the image */
- H5IMlink_palette( file_id, IMAGE1_NAME, PAL_NAME );
-
-/*-------------------------------------------------------------------------
- * True color image example with pixel interlace
- *-------------------------------------------------------------------------
- */
-
- /* read second data file */
- if (read_data(DATA_FILE2,&width,&height)<0)
- goto out;
-
- /* make dataset */
- H5IMmake_image_24bit( file_id, IMAGE2_NAME, width, height, "INTERLACE_PIXEL", gbuf );
-
- /* close the file. */
- H5Fclose( file_id );
-
- if(gbuf) {
- free(gbuf);
- gbuf = NULL;
- }
-
- return 0;
+ hid_t file_id; /* HDF5 file identifier */
+ hsize_t width; /* width of image */
+ hsize_t height; /* height of image */
+ unsigned char pal[PAL_ENTRIES * 3]; /* palette array */
+ hsize_t pal_dims[2] = {PAL_ENTRIES, 3}; /* palette dimensions */
+ herr_t i, n;
+
+ /* create a new HDF5 file using default properties. */
+ file_id = H5Fcreate("ex_image2.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* read first data file */
+ if (read_data(DATA_FILE1, &width, &height) < 0)
+ goto out;
+
+ /* make the image */
+ H5IMmake_image_8bit(file_id, IMAGE1_NAME, width, height, gbuf);
+ if (gbuf) {
+ free(gbuf);
+ gbuf = NULL;
+ }
+
+ /*-------------------------------------------------------------------------
+ * define a palette, blue to red tones
+ *-------------------------------------------------------------------------
+ */
+ for (i = 0, n = 0; i < PAL_ENTRIES * 3; i += 3, n++) {
+ pal[i] = n; /* red */
+ pal[i + 1] = 0; /* green */
+ pal[i + 2] = 255 - n; /* blue */
+ }
+
+ /* make a palette */
+ H5IMmake_palette(file_id, PAL_NAME, pal_dims, pal);
+
+ /* attach the palette to the image */
+ H5IMlink_palette(file_id, IMAGE1_NAME, PAL_NAME);
+
+ /*-------------------------------------------------------------------------
+ * True color image example with pixel interlace
+ *-------------------------------------------------------------------------
+ */
+
+ /* read second data file */
+ if (read_data(DATA_FILE2, &width, &height) < 0)
+ goto out;
+
+ /* make dataset */
+ H5IMmake_image_24bit(file_id, IMAGE2_NAME, width, height, "INTERLACE_PIXEL", gbuf);
+
+ /* close the file. */
+ H5Fclose(file_id);
+
+ if (gbuf) {
+ free(gbuf);
+ gbuf = NULL;
+ }
+
+ return 0;
out:
- printf("Error on return function...Exiting\n");
+ printf("Error on return function...Exiting\n");
- if(gbuf) {
- free(gbuf);
- gbuf = NULL;
- }
+ if (gbuf) {
+ free(gbuf);
+ gbuf = NULL;
+ }
- return 1;
+ return 1;
}
-
/*-------------------------------------------------------------------------
* read_data
* utility function to read ASCII image data
@@ -117,68 +116,63 @@ out:
*-------------------------------------------------------------------------
*/
-static int read_data( const char* fname, /*IN*/
- hsize_t *width, /*OUT*/
- hsize_t *height /*OUT*/ )
+static int
+read_data(const char *fname, /*IN*/
+ hsize_t * width, /*OUT*/
+ hsize_t * height /*OUT*/)
{
- int i, n;
- int color_planes;
- char str[20];
- FILE *f;
- int w, h;
- char *srcdir = getenv("srcdir"); /* the source directory */
- char data_file[512]=""; /* buffer to hold name of existing data file */
-
-/*-------------------------------------------------------------------------
- * compose the name of the file to open, using "srcdir", if appropriate
- *-------------------------------------------------------------------------
- */
- strcpy(data_file, "");
- if (srcdir)
- {
- strcpy(data_file, srcdir);
- strcat(data_file, "/");
- }
- strcat(data_file,fname);
-
-/*-------------------------------------------------------------------------
- * read
- *-------------------------------------------------------------------------
- */
-
- f = fopen(data_file, "r");
- if ( f == NULL )
- {
- printf( "Could not open file %s. Try set $srcdir \n", data_file );
- return -1;
- }
-
- fscanf( f, "%s", str );
- fscanf( f, "%d", &color_planes );
- fscanf( f, "%s", str );
- fscanf( f, "%d", &h);
- fscanf( f, "%s", str );
- fscanf( f, "%d", &w);
-
- *width = (hsize_t)w;
- *height = (hsize_t)h;
-
- if ( gbuf )
- {
- free( gbuf );
- gbuf=NULL;
- }
-
- gbuf = (unsigned char*) malloc (w * h * color_planes * sizeof( unsigned char ));
-
- for (i = 0; i < h * w * color_planes ; i++)
- {
- fscanf( f, "%d",&n );
- gbuf[i] = (unsigned char)n;
- }
- fclose(f);
-
- return 1;
-
+ int i, n;
+ int color_planes;
+ char str[20];
+ FILE *f;
+ int w, h;
+ char *srcdir = getenv("srcdir"); /* the source directory */
+ char data_file[512] = ""; /* buffer to hold name of existing data file */
+
+ /*-------------------------------------------------------------------------
+ * compose the name of the file to open, using "srcdir", if appropriate
+ *-------------------------------------------------------------------------
+ */
+ strcpy(data_file, "");
+ if (srcdir) {
+ strcpy(data_file, srcdir);
+ strcat(data_file, "/");
+ }
+ strcat(data_file, fname);
+
+ /*-------------------------------------------------------------------------
+ * read
+ *-------------------------------------------------------------------------
+ */
+
+ f = fopen(data_file, "r");
+ if (f == NULL) {
+ printf("Could not open file %s. Try set $srcdir \n", data_file);
+ return -1;
+ }
+
+ fscanf(f, "%s", str);
+ fscanf(f, "%d", &color_planes);
+ fscanf(f, "%s", str);
+ fscanf(f, "%d", &h);
+ fscanf(f, "%s", str);
+ fscanf(f, "%d", &w);
+
+ *width = (hsize_t)w;
+ *height = (hsize_t)h;
+
+ if (gbuf) {
+ free(gbuf);
+ gbuf = NULL;
+ }
+
+ gbuf = (unsigned char *)malloc(w * h * color_planes * sizeof(unsigned char));
+
+ for (i = 0; i < h * w * color_planes; i++) {
+ fscanf(f, "%d", &n);
+ gbuf[i] = (unsigned char)n;
+ }
+ fclose(f);
+
+ return 1;
}
-
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