1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/* Authors: Keith Whitwell <keith@tungstengraphics.com>
*/
#ifndef G_CONTEXT_H
#define G_CONTEXT_H
#include "glheader.h"
#include "pipe/p_state.h"
#include "pipe/p_context.h"
#include "sp_quad.h"
struct softpipe_surface;
struct draw_context;
struct prim_stage;
enum interp_mode {
INTERP_CONSTANT,
INTERP_LINEAR,
INTERP_PERSPECTIVE
};
#define G_NEW_VIEWPORT 0x1
#define G_NEW_SETUP 0x2
#define G_NEW_FS 0x4
#define G_NEW_BLEND 0x8
#define G_NEW_POINT 0x10
#define G_NEW_CLIP 0x20
#define G_NEW_SCISSOR 0x40
#define G_NEW_STIPPLE 0x80
#define G_NEW_FRAMEBUFFER 0x100
#define G_NEW_ALPHA_TEST 0x200
#define G_NEW_DEPTH_TEST 0x400
#define G_NEW_SAMPLER 0x800
#define G_NEW_TEXTURE 0x1000
#define PIPE_ATTRIB_MAX 32
struct softpipe_context {
struct pipe_context pipe;
/* The most recent drawing state as set by the driver:
*/
struct pipe_framebuffer_state framebuffer;
struct pipe_viewport viewport;
struct pipe_setup_state setup;
struct pipe_fs_state fs;
struct pipe_blend_state blend;
struct pipe_alpha_test_state alpha_test;
struct pipe_clip_state clip;
struct pipe_clear_color_state clear_color;
struct pipe_depth_state depth_test;
struct pipe_scissor_rect scissor;
struct pipe_poly_stipple poly_stipple;
struct pipe_sampler_state sampler[PIPE_MAX_SAMPLERS];
struct pipe_texture_object *texture[PIPE_MAX_SAMPLERS];
GLuint dirty;
/* Clip derived state:
*/
GLfloat plane[12][4];
GLuint nr_planes;
/* Setup derived state. TODO: this should be passed in the program
* tokens as parameters to DECL instructions.
*
* For now we just set colors to CONST on flatshade, textures to
* perspective always and everything else to linear.
*/
enum interp_mode interp[PIPE_ATTRIB_MAX];
/* FS + setup derived state:
*/
GLuint fp_attr_to_slot[PIPE_ATTRIB_MAX];
GLuint vf_attr_to_slot[PIPE_ATTRIB_MAX];
GLuint nr_attrs;
GLuint nr_frag_attrs;
GLuint attr_mask;
GLboolean need_z;
GLboolean need_w;
/* Stipple derived state:
*/
GLubyte stipple_masks[16][16];
/* The software clipper/setup engine.
*/
struct {
struct prim_stage *setup;
struct prim_stage *unfilled;
struct prim_stage *twoside;
struct prim_stage *clip;
struct prim_stage *flatshade;
struct prim_stage *offset;
struct prim_stage *cull;
struct prim_stage *first;
GLenum prim;
GLuint vertex_size;
} prim;
/*
* Software quad rendering pipeline
*/
struct {
struct quad_stage *shade;
struct quad_stage *alpha_test;
struct quad_stage *depth_test;
struct quad_stage *blend;
struct quad_stage *output;
struct quad_stage *first; /**< points to one of the above stages */
} quad;
/* Temp kludge:
*/
struct draw_context *draw;
};
static INLINE struct softpipe_context *
softpipe_context( struct pipe_context *pipe )
{
return (struct softpipe_context *)pipe;
}
#endif
|