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      1 /**************************************************************************
      2  *
      3  * Copyright 2016 Nayan Deshmukh.
      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 bicubic interpolation filters */
     29 
     30 #ifndef vl_bicubic_filter_h
     31 #define vl_bicubic_filter_h
     32 
     33 #include "pipe/p_state.h"
     34 
     35 struct vl_bicubic_filter
     36 {
     37    struct pipe_context *pipe;
     38    struct pipe_vertex_buffer quad;
     39 
     40    void *rs_state;
     41    void *blend;
     42    void *sampler;
     43    void *ves;
     44    void *vs, *fs;
     45 };
     46 
     47 bool
     48 vl_bicubic_filter_init(struct vl_bicubic_filter *filter, struct pipe_context *pipe,
     49                       unsigned width, unsigned height);
     50 
     51 void
     52 vl_bicubic_filter_cleanup(struct vl_bicubic_filter *filter);
     53 
     54 
     55 void
     56 vl_bicubic_filter_render(struct vl_bicubic_filter *filter,
     57                         struct pipe_sampler_view *src,
     58                         struct pipe_surface *dst,
     59                         struct u_rect *dst_area,
     60                         struct u_rect *dst_clip);
     61 
     62 
     63 #endif /* vl_bicubic_filter_h */
     64