extensions: removed frequency extension

Not needed after the introduction of babl_format_n

diff --git a/extensions/frequency.c b/extensions/frequency.c
deleted file mode 100644 (file)
index 90fcf87..0000000
--- a/extensions/frequency.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/* babl - dynamically extendable universal pixel conversion library.
- * Copyright (C) 2005-2008 Øyvind Kolås.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, see
- * <http://www.gnu.org/licenses/>.
- */
-
-/*
- * This file contains a pseudo model and format for storing frequency domain
- * buffers,
- * the main purpose is registering a fully decorated introspectable format.
- * It currently provides nop conversions when registering when conversions to
- * or from this conversion is requested nothing is done.
- *
- * Added as a potential aid for summer of code project adding frequency domain
- * processing to GEGL
- */
-
-#include "config.h"
-
-#include <math.h>
-#include <string.h>
-
-#include "babl.h"
-
-
-static long  rgba_to_frequency (char *src,
-                                char *dst,
-                                long  n);
-
-static long  frequency_to_rgba (char *src,
-                                char *dst,
-                                long  n);
-
-int init (void);
-
-int
-init (void)
-{
-  babl_component_new ("Rr", NULL);
-  babl_component_new ("Gr", NULL);
-  babl_component_new ("Br", NULL);
-  babl_component_new ("Ar", NULL);
-  babl_component_new ("Ri", NULL);
-  babl_component_new ("Gi", NULL);
-  babl_component_new ("Bi", NULL);
-  babl_component_new ("Ai", NULL);
-
-  babl_model_new (
-                  "name", "frequency",
-                  babl_component ("Rr"),
-                  babl_component ("Gr"),
-                  babl_component ("Br"),
-                  babl_component ("Ar"),
-                  babl_component ("Ri"),
-                  babl_component ("Gi"),
-                  babl_component ("Bi"),
-                  babl_component ("Ai"),
-                  NULL
-                  );
-
-  babl_conversion_new (
-                       babl_model ("RGBA"),
-                       babl_model ("frequency"),
-                       "linear", rgba_to_frequency,
-                       NULL
-                       );
-
-  babl_conversion_new (
-                       babl_model ("frequency"),
-                       babl_model ("RGBA"),
-                       "linear", frequency_to_rgba,
-                       NULL
-                       );
-
-  babl_format_new (
-                   "name", "frequency float",
-                   babl_model ("frequency"),
-                   babl_component ("Rr"),
-                   babl_component ("Gr"),
-                   babl_component ("Br"),
-                   babl_component ("Ar"),
-                   babl_component ("Ri"),
-                   babl_component ("Gi"),
-                   babl_component ("Bi"),
-                   babl_component ("Ai"),
-                   NULL
-                   );
-
-  babl_format_new (
-                   "name", "frequency double",
-                   babl_model ("frequency"),
-                   babl_type ("double"),
-                   babl_component ("Rr"),
-                   babl_component ("Gr"),
-                   babl_component ("Br"),
-                   babl_component ("Ar"),
-                   babl_component ("Ri"),
-                   babl_component ("Gi"),
-                   babl_component ("Bi"),
-                   babl_component ("Ai"),
-                   NULL
-                   );
-    
-  return 0;
-}
-
-
-static long
-rgba_to_frequency (char *src,
-                   char *dst,
-                   long  n)
-{
-  /* we don't do any conversion, which will be registered as the only valid
-   * conversion in babl to go to RGB, it won't work though and the buffer is
-   * left untouched without complaints from babl.
-   */
-  return n;
-}
-
-static long
-frequency_to_rgba (char *src,
-                   char *dst,
-                   long  n)
-{
-  while (n--)
-    {
-      double Rr = ((double *) src)[0];
-      double Gr = ((double *) src)[1];
-      double Br = ((double *) src)[2];
-      double Ri = ((double *) src)[4];
-      double Gi = ((double *) src)[5];
-      double Bi = ((double *) src)[6];
-
-      double red, green, blue;
-
-      red = sqrt(Rr*Rr + Ri*Ri);
-      green = sqrt(Gr*Gr + Gi*Gi);
-      blue = sqrt(Br*Br + Bi*Bi);
-
-      ((double *) dst)[0] = red;
-      ((double *) dst)[1] = green;
-      ((double *) dst)[2] = blue;
-      ((double *) dst)[3] = 1;   
-
-      src += sizeof (double) * 8;
-      dst += sizeof (double) * 4;
-    }
-  return n;
-}