• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /**************************************************************************
2  *
3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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 /* Authors:  Keith Whitwell <keith@tungstengraphics.com>
29  */
30 
31 #ifndef SP_QUAD_PIPE_H
32 #define SP_QUAD_PIPE_H
33 
34 
35 struct softpipe_context;
36 struct quad_header;
37 
38 
39 /**
40  * Fragment processing is performed on 2x2 blocks of pixels called "quads".
41  * Quad processing is performed with a pipeline of stages represented by
42  * this type.
43  */
44 struct quad_stage {
45    struct softpipe_context *softpipe;
46 
47    struct quad_stage *next;
48 
49    void (*begin)(struct quad_stage *qs);
50 
51    /** the stage action */
52    void (*run)(struct quad_stage *qs, struct quad_header *quad[], unsigned nr);
53 
54    void (*destroy)(struct quad_stage *qs);
55 };
56 
57 
58 struct quad_stage *sp_quad_polygon_stipple_stage( struct softpipe_context *softpipe );
59 struct quad_stage *sp_quad_earlyz_stage( struct softpipe_context *softpipe );
60 struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe );
61 struct quad_stage *sp_quad_alpha_test_stage( struct softpipe_context *softpipe );
62 struct quad_stage *sp_quad_stencil_test_stage( struct softpipe_context *softpipe );
63 struct quad_stage *sp_quad_depth_test_stage( struct softpipe_context *softpipe );
64 struct quad_stage *sp_quad_occlusion_stage( struct softpipe_context *softpipe );
65 struct quad_stage *sp_quad_coverage_stage( struct softpipe_context *softpipe );
66 struct quad_stage *sp_quad_blend_stage( struct softpipe_context *softpipe );
67 struct quad_stage *sp_quad_colormask_stage( struct softpipe_context *softpipe );
68 struct quad_stage *sp_quad_output_stage( struct softpipe_context *softpipe );
69 
70 void sp_build_quad_pipeline(struct softpipe_context *sp);
71 
72 #endif /* SP_QUAD_PIPE_H */
73