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
168
169
170
|
/**************************************************************************
*
* 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 SP_CONTEXT_H
#define SP_CONTEXT_H
#include "pipe/p_state.h"
#include "pipe/p_context.h"
#include "sp_quad.h"
struct softpipe_surface;
struct softpipe_winsys;
struct draw_context;
struct draw_stage;
enum interp_mode {
INTERP_CONSTANT,
INTERP_LINEAR,
INTERP_PERSPECTIVE
};
#define SP_NEW_VIEWPORT 0x1
#define SP_NEW_SETUP 0x2
#define SP_NEW_FS 0x4
#define SP_NEW_BLEND 0x8
#define SP_NEW_CLIP 0x10
#define SP_NEW_SCISSOR 0x20
#define SP_NEW_STIPPLE 0x40
#define SP_NEW_FRAMEBUFFER 0x80
#define SP_NEW_ALPHA_TEST 0x100
#define SP_NEW_DEPTH_TEST 0x200
#define SP_NEW_SAMPLER 0x400
#define SP_NEW_TEXTURE 0x800
#define SP_NEW_STENCIL 0x1000
#define SP_NEW_VERTEX 0x2000
#define SP_NEW_VS 0x4000
struct softpipe_context {
struct pipe_context pipe; /**< base class */
struct softpipe_winsys *winsys; /**< window system interface */
/* The most recent drawing state as set by the driver:
*/
struct pipe_alpha_test_state alpha_test;
struct pipe_blend_state blend;
struct pipe_blend_color blend_color;
struct pipe_clear_color_state clear_color;
struct pipe_clip_state clip;
struct pipe_depth_state depth_test;
struct pipe_framebuffer_state framebuffer;
struct pipe_shader_state fs;
struct pipe_shader_state vs;
struct pipe_poly_stipple poly_stipple;
struct pipe_scissor_state scissor;
struct pipe_sampler_state sampler[PIPE_MAX_SAMPLERS];
struct pipe_setup_state setup;
struct pipe_stencil_state stencil;
struct pipe_mipmap_tree *texture[PIPE_MAX_SAMPLERS];
struct pipe_viewport_state viewport;
struct pipe_vertex_buffer vertex_buffer[PIPE_ATTRIB_MAX];
struct pipe_vertex_element vertex_element[PIPE_ATTRIB_MAX];
unsigned dirty;
/* 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];
/*
* Mapped vertex buffers
*/
ubyte *mapped_vbuffer[PIPE_ATTRIB_MAX];
/* FS + setup derived state:
*/
/** Map fragment program attribute to quad/coef array slot */
unsigned fp_attr_to_slot[PIPE_ATTRIB_MAX];
/** Map vertex format attribute to a vertex attribute slot */
unsigned vf_attr_to_slot[PIPE_ATTRIB_MAX];
unsigned nr_attrs;
unsigned nr_frag_attrs; /**< number of active fragment attribs */
unsigned attr_mask; /**< bitfield of VF_ATTRIB_ indexes/bits */
boolean need_z; /**< produce quad/fragment Z values? */
boolean need_w; /**< produce quad/fragment W values? */
#if 0
/* Stipple derived state:
*/
ubyte stipple_masks[16][16];
#endif
/** Derived from scissor and surface bounds: */
struct pipe_scissor_state cliprect;
unsigned occlusion_counter;
unsigned line_stipple_counter;
/** Software quad rendering pipeline */
struct {
struct quad_stage *polygon_stipple;
struct quad_stage *shade;
struct quad_stage *alpha_test;
struct quad_stage *stencil_test;
struct quad_stage *depth_test;
struct quad_stage *occlusion;
struct quad_stage *coverage;
struct quad_stage *bufloop;
struct quad_stage *blend;
struct quad_stage *colormask;
struct quad_stage *output;
struct quad_stage *first; /**< points to one of the above stages */
} quad;
/** The primitive drawing context */
struct draw_context *draw;
struct pipe_surface *cbuf; /**< current color buffer (one of cbufs) */
};
static INLINE struct softpipe_context *
softpipe_context( struct pipe_context *pipe )
{
return (struct softpipe_context *)pipe;
}
#endif /* SP_CONTEXT_H */
|
