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  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 TUNGSTEN GRAPHICS 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 all matrix based filters like
  29.    gaussian, mean, laplacian, emboss, sharpness etc.. */
  30.  
  31. #ifndef vl_matrix_filter_h
  32. #define vl_matrix_filter_h
  33.  
  34. #include "pipe/p_state.h"
  35.  
  36. struct vl_matrix_filter
  37. {
  38.    struct pipe_context *pipe;
  39.    struct pipe_vertex_buffer quad;
  40.  
  41.    void *rs_state;
  42.    void *blend;
  43.    void *sampler;
  44.    void *ves;
  45.    void *vs, *fs;
  46. };
  47.  
  48. bool
  49. vl_matrix_filter_init(struct vl_matrix_filter *filter, struct pipe_context *pipe,
  50.                       unsigned video_width, unsigned video_height,
  51.                       unsigned matrix_width, unsigned matrix_height,
  52.                       const float *matrix_values);
  53.  
  54. void
  55. vl_matrix_filter_cleanup(struct vl_matrix_filter *filter);
  56.  
  57.  
  58. void
  59. vl_matrix_filter_render(struct vl_matrix_filter *filter,
  60.                         struct pipe_sampler_view *src,
  61.                         struct pipe_surface *dst);
  62.  
  63.  
  64. #endif /* vl_matrix_filter_h */
  65.