src/gallium/auxiliary/vl/vl_median_filter.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2012 Christian König.
   4  * All Rights Reserved.
   5  *
   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:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  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.
  25  *
  26  **************************************************************************/
  27
  28 /* implementation of a median filter for noise reduction */
  29
  30 #ifndef vl_median_filter_h
  31 #define vl_median_filter_h
  32
  33 #include "pipe/p_state.h"
  34
  35 enum vl_median_filter_shape
  36 {
  37    VL_MEDIAN_FILTER_BOX,
  38    VL_MEDIAN_FILTER_CROSS,
  39    VL_MEDIAN_FILTER_X,
  40    VL_MEDIAN_FILTER_HORIZONTAL,
  41    VL_MEDIAN_FILTER_VERTICAL
  42 };
  43
  44 struct vl_median_filter
  45 {
  46    struct pipe_context *pipe;
  47    struct pipe_vertex_buffer quad;
  48
  49    void *rs_state;
  50    void *blend;
  51    void *sampler;
  52    void *ves;
  53    void *vs, *fs;
  54 };
  55
  56 bool
  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);
  60
  61 void
  62 vl_median_filter_cleanup(struct vl_median_filter *filter);
  63
  64
  65 void
  66 vl_median_filter_render(struct vl_median_filter *filter,
  67                         struct pipe_sampler_view *src,
  68                         struct pipe_surface *dst);
  69
  70 #endif /* vl_median_filter_h */