lp_setup.h revision cdc920a0 
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#ifndef LP_SETUP_H
28#define LP_SETUP_H
29
30#include "pipe/p_compiler.h"
31#include "lp_jit.h"
32
33struct draw_context;
34struct vertex_info;
35
36enum lp_interp {
37   LP_INTERP_CONSTANT,
38   LP_INTERP_LINEAR,
39   LP_INTERP_PERSPECTIVE,
40   LP_INTERP_POSITION,
41   LP_INTERP_FACING
42};
43
44/* Describes how to generate all the fragment shader inputs from the
45 * the vertices passed into our triangle/line/point functions.
46 *
47 * Vertices are treated as an array of float[4] values, indexed by
48 * src_index.
49 */
50struct lp_shader_input {
51   enum lp_interp interp;       /* how to interpolate values */
52   unsigned src_index;          /* where to find values in incoming vertices */
53};
54
55struct pipe_texture;
56struct pipe_surface;
57struct pipe_buffer;
58struct pipe_blend_color;
59struct pipe_screen;
60struct pipe_framebuffer_state;
61struct lp_fragment_shader;
62struct lp_jit_context;
63
64struct setup_context *
65lp_setup_create( struct pipe_context *pipe,
66                 struct draw_context *draw );
67
68void
69lp_setup_clear(struct setup_context *setup,
70               const float *clear_color,
71               double clear_depth,
72               unsigned clear_stencil,
73               unsigned flags);
74
75struct pipe_fence_handle *
76lp_setup_fence( struct setup_context *setup );
77
78
79void
80lp_setup_flush( struct setup_context *setup,
81                unsigned flags );
82
83
84void
85lp_setup_bind_framebuffer( struct setup_context *setup,
86                           const struct pipe_framebuffer_state *fb );
87
88void
89lp_setup_set_triangle_state( struct setup_context *setup,
90                             unsigned cullmode,
91                             boolean front_is_ccw,
92                             boolean scissor );
93
94void
95lp_setup_set_fs_inputs( struct setup_context *setup,
96                        const struct lp_shader_input *interp,
97                        unsigned nr );
98
99void
100lp_setup_set_fs_functions( struct setup_context *setup,
101                           lp_jit_frag_func jit_function0,
102                           lp_jit_frag_func jit_function1,
103                           boolean opaque );
104
105void
106lp_setup_set_fs_constants(struct setup_context *setup,
107                          struct pipe_buffer *buffer);
108
109
110void
111lp_setup_set_alpha_ref_value( struct setup_context *setup,
112                              float alpha_ref_value );
113
114void
115lp_setup_set_blend_color( struct setup_context *setup,
116                          const struct pipe_blend_color *blend_color );
117
118void
119lp_setup_set_scissor( struct setup_context *setup,
120                      const struct pipe_scissor_state *scissor );
121
122void
123lp_setup_set_sampler_textures( struct setup_context *setup,
124                               unsigned num, struct pipe_texture **texture);
125
126unsigned
127lp_setup_is_texture_referenced( const struct setup_context *setup,
128                                const struct pipe_texture *texture );
129
130void
131lp_setup_set_flatshade_first( struct setup_context *setup,
132                              boolean flatshade_first );
133
134void
135lp_setup_set_vertex_info( struct setup_context *setup,
136                          struct vertex_info *info );
137
138
139#endif
140