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/**************************************************************************
*
* Copyright 2012 Christian König.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/* implementation of a median filter for noise reduction */
#ifndef vl_median_filter_h
#define vl_median_filter_h
#include "pipe/p_state.h"
enum vl_median_filter_shape
{
VL_MEDIAN_FILTER_BOX,
VL_MEDIAN_FILTER_CROSS,
VL_MEDIAN_FILTER_X,
VL_MEDIAN_FILTER_HORIZONTAL,
VL_MEDIAN_FILTER_VERTICAL
};
struct vl_median_filter
{
struct pipe_context *pipe;
struct pipe_vertex_buffer quad;
void *rs_state;
void *blend;
void *sampler;
void *ves;
void *vs, *fs;
};
bool
vl_median_filter_init(struct vl_median_filter *filter, struct pipe_context *pipe,
unsigned width, unsigned height, unsigned size,
enum vl_median_filter_shape shape);
void
vl_median_filter_cleanup(struct vl_median_filter *filter);
void
vl_median_filter_render(struct vl_median_filter *filter,
struct pipe_sampler_view *src,
struct pipe_surface *dst);
#endif /* vl_median_filter_h */
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