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
35struct softpipe_context;
36struct 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 */
44struct 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
58struct quad_stage *sp_quad_polygon_stipple_stage( struct softpipe_context *softpipe );
59struct quad_stage *sp_quad_earlyz_stage( struct softpipe_context *softpipe );
60struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe );
61struct quad_stage *sp_quad_alpha_test_stage( struct softpipe_context *softpipe );
62struct quad_stage *sp_quad_stencil_test_stage( struct softpipe_context *softpipe );
63struct quad_stage *sp_quad_depth_test_stage( struct softpipe_context *softpipe );
64struct quad_stage *sp_quad_occlusion_stage( struct softpipe_context *softpipe );
65struct quad_stage *sp_quad_coverage_stage( struct softpipe_context *softpipe );
66struct quad_stage *sp_quad_blend_stage( struct softpipe_context *softpipe );
67struct quad_stage *sp_quad_colormask_stage( struct softpipe_context *softpipe );
68struct quad_stage *sp_quad_output_stage( struct softpipe_context *softpipe );
69
70void sp_build_quad_pipeline(struct softpipe_context *sp);
71
72#endif /* SP_QUAD_PIPE_H */
73