1 files changed, 132 insertions, 0 deletions
diff --git a/gsl-1.9/wavelet/wavelet.c b/gsl-1.9/wavelet/wavelet.c
new file mode 100644
index 0000000..fb51874
--- /dev/null
+++ b/gsl-1.9/wavelet/wavelet.c
@@ -0,0 +1,132 @@
+/* wavelet/wavelet.c
+ * 
+ * Copyright (C) 2004 Ivo Alxneit
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <gsl/gsl_errno.h>
+#include <gsl/gsl_wavelet.h>
+
+gsl_wavelet *
+gsl_wavelet_alloc (const gsl_wavelet_type * T, size_t k)
+{
+  int status;
+
+  gsl_wavelet *w = (gsl_wavelet *) malloc (sizeof (gsl_wavelet));
+
+  if (w == NULL)
+    {
+      GSL_ERROR_VAL ("failed to allocate space for wavelet struct",
+                     GSL_ENOMEM, 0);
+    };
+
+  w->type = T;
+
+  status = (T->init) (&(w->h1), &(w->g1), &(w->h2), &(w->g2),
+                      &(w->nc), &(w->offset), k);
+
+  if (status)
+    {
+      free (w);
+      GSL_ERROR_VAL ("invalid wavelet member", GSL_EINVAL, 0);
+    }
+
+  return w;
+}
+
+void
+gsl_wavelet_free (gsl_wavelet * w)
+{
+  free (w);
+}
+
+const char *
+gsl_wavelet_name (const gsl_wavelet * w)
+{
+  return w->type->name;
+}
+
+
+/* Let's not export this for now (BJG) */
+#if 0
+void
+gsl_wavelet_print (const gsl_wavelet * w)
+{
+  size_t n = w->nc;
+  size_t i;
+
+  printf ("Wavelet type: %s\n", w->type->name);
+
+  printf
+    (" h1(%d):%12.8f   g1(%d):%12.8f       h2(%d):%12.8f   g2(%d):%12.8f\n",
+     0, w->h1[0], 0, w->g1[0], 0, w->h2[0], 0, w->g2[0]);
+
+  for (i = 1; i < (n < 10 ? n : 10); i++)
+    {
+      printf
+        (" h1(%d):%12.8f   g1(%d):%12.8f       h2(%d):%12.8f   g2(%d):%12.8f\n",
+         i, w->h1[i], i, w->g1[i], i, w->h2[i], i, w->g2[i]);
+    }
+
+  for (; i < n; i++)
+    {
+      printf
+        ("h1(%d):%12.8f  g1(%d):%12.8f      h2(%d):%12.8f  g2(%d):%12.8f\n",
+         i, w->h1[i], i, w->g1[i], i, w->h2[i], i, w->g2[i]);
+    }
+}
+#endif
+
+gsl_wavelet_workspace *
+gsl_wavelet_workspace_alloc (size_t n)
+{
+  gsl_wavelet_workspace *work;
+
+  if (n == 0)
+    {
+      GSL_ERROR_VAL ("length n must be positive integer", GSL_EDOM, 0);
+    }
+
+  work = (gsl_wavelet_workspace *) malloc (sizeof (gsl_wavelet_workspace));
+
+  if (work == NULL)
+    {
+      GSL_ERROR_VAL ("failed to allocate struct", GSL_ENOMEM, 0);
+    }
+
+  work->n = n;
+  work->scratch = (double *) malloc (n * sizeof (double));
+
+  if (work->scratch == NULL)
+    {
+      /* error in constructor, prevent memory leak */
+      free (work);
+      GSL_ERROR_VAL ("failed to allocate scratch space", GSL_ENOMEM, 0);
+    }
+
+  return work;
+}
+
+void
+gsl_wavelet_workspace_free (gsl_wavelet_workspace * work)
+{
+  /* release scratch space */
+  free (work->scratch);
+  work->scratch = NULL;
+  free (work);
+}