1 /**************************************************************************
3 * Copyright 2012 Christian König.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 /* implementation of a median filter for noise reduction */
30 #ifndef vl_median_filter_h
31 #define vl_median_filter_h
33 #include "pipe/p_state.h"
35 enum vl_median_filter_shape
38 VL_MEDIAN_FILTER_CROSS
,
40 VL_MEDIAN_FILTER_HORIZONTAL
,
41 VL_MEDIAN_FILTER_VERTICAL
44 struct vl_median_filter
46 struct pipe_context
*pipe
;
47 struct pipe_vertex_buffer quad
;
57 vl_median_filter_init(struct vl_median_filter
*filter
, struct pipe_context
*pipe
,
58 unsigned width
, unsigned height
, unsigned size
,
59 enum vl_median_filter_shape shape
);
62 vl_median_filter_cleanup(struct vl_median_filter
*filter
);
66 vl_median_filter_render(struct vl_median_filter
*filter
,
67 struct pipe_sampler_view
*src
,
68 struct pipe_surface
*dst
);
70 #endif /* vl_median_filter_h */