killem

[rrdtool.git] / libraries / libart_lgpl-2.3.7 / art_filterlevel.h

diff --git a/libraries/libart_lgpl-2.3.7/art_filterlevel.h b/libraries/libart_lgpl-2.3.7/art_filterlevel.h
deleted file mode 100644 (file)
index 1f4be48..0000000
--- a/libraries/libart_lgpl-2.3.7/art_filterlevel.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_FILTERLEVEL_H__
-#define __ART_FILTERLEVEL_H__
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef enum {
-  ART_FILTER_NEAREST,
-  ART_FILTER_TILES,
-  ART_FILTER_BILINEAR,
-  ART_FILTER_HYPER
-} ArtFilterLevel;
-
-/* NEAREST is nearest neighbor. It is the fastest and lowest quality.
-
-   TILES is an accurate simulation of the PostScript image operator
-   without any interpolation enabled; each pixel is rendered as a tiny
-   parallelogram of solid color, the edges of which are implemented
-   with antialiasing. It resembles nearest neighbor for enlargement,
-   and bilinear for reduction.
-
-   BILINEAR is bilinear interpolation. For enlargement, it is
-   equivalent to point-sampling the ideal bilinear-interpolated
-   image. For reduction, it is equivalent to laying down small tiles
-   and integrating over the coverage area.
-
-   HYPER is the highest quality reconstruction function. It is derived
-   from the hyperbolic filters in Wolberg's "Digital Image Warping,"
-   and is formally defined as the hyperbolic-filter sampling the ideal
-   hyperbolic-filter interpolated image (the filter is designed to be
-   idempotent for 1:1 pixel mapping). It is the slowest and highest
-   quality.
-
-   Note: at this stage of implementation, most filter modes are likely
-   not to be implemented.
-
-   Note: cubic filtering is missing from this list, because there isn't
-   much point - hyper is just as fast to implement and slightly better
-   in quality.
-
-*/
-
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_PATHCODE_H__ */