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 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