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
|
/**************************************************************************
*
* Copyright 2007 VMware, Inc.
* 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 VMWARE 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 <keithw@vmware.com>
*/
#ifndef DRAW_PIPE_H
#define DRAW_PIPE_H
#include "pipe/p_compiler.h"
#include "draw_private.h" /* for sizeof(vertex_header) */
#include "draw_context.h"
/**
* Basic info for a point/line/triangle primitive.
*/
struct prim_header {
float det; /**< front/back face determinant */
ushort flags;
ushort pad;
struct vertex_header *v[3]; /**< 1 to 3 vertex pointers */
};
/**
* Base class for all primitive drawing stages.
*/
struct draw_stage
{
struct draw_context *draw; /**< parent context */
struct draw_stage *next; /**< next stage in pipeline */
const char *name; /**< for debugging */
struct vertex_header **tmp; /**< temp vert storage, such as for clipping */
unsigned nr_tmps;
void (*point)( struct draw_stage *,
struct prim_header * );
void (*line)( struct draw_stage *,
struct prim_header * );
void (*tri)( struct draw_stage *,
struct prim_header * );
void (*flush)( struct draw_stage *,
unsigned flags );
void (*reset_stipple_counter)( struct draw_stage * );
void (*destroy)( struct draw_stage * );
};
extern struct draw_stage *draw_unfilled_stage( struct draw_context *context );
extern struct draw_stage *draw_twoside_stage( struct draw_context *context );
extern struct draw_stage *draw_offset_stage( struct draw_context *context );
extern struct draw_stage *draw_clip_stage( struct draw_context *context );
extern struct draw_stage *draw_flatshade_stage( struct draw_context *context );
extern struct draw_stage *draw_cull_stage( struct draw_context *context );
extern struct draw_stage *draw_stipple_stage( struct draw_context *context );
extern struct draw_stage *draw_wide_line_stage( struct draw_context *context );
extern struct draw_stage *draw_wide_point_stage( struct draw_context *context );
extern struct draw_stage *draw_validate_stage( struct draw_context *context );
extern void draw_free_temp_verts( struct draw_stage *stage );
extern boolean draw_alloc_temp_verts( struct draw_stage *stage, unsigned nr );
extern void draw_reset_vertex_ids( struct draw_context *draw );
void draw_pipe_passthrough_tri(struct draw_stage *stage, struct prim_header *header);
void draw_pipe_passthrough_line(struct draw_stage *stage, struct prim_header *header);
void draw_pipe_passthrough_point(struct draw_stage *stage, struct prim_header *header);
void draw_aapoint_prepare_outputs(struct draw_context *context,
struct draw_stage *stage);
void draw_aaline_prepare_outputs(struct draw_context *context,
struct draw_stage *stage);
void draw_unfilled_prepare_outputs(struct draw_context *context,
struct draw_stage *stage);
/**
* Get a writeable copy of a vertex.
* \param stage drawing stage info
* \param vert the vertex to copy (source)
* \param idx index into stage's tmp[] array to put the copy (dest)
* \return pointer to the copied vertex
*/
static INLINE struct vertex_header *
dup_vert( struct draw_stage *stage,
const struct vertex_header *vert,
unsigned idx )
{
struct vertex_header *tmp = stage->tmp[idx];
const uint vsize = sizeof(struct vertex_header)
+ draw_num_shader_outputs(stage->draw) * 4 * sizeof(float);
memcpy(tmp, vert, vsize);
tmp->vertex_id = UNDEFINED_VERTEX_ID;
return tmp;
}
#endif
|
