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
|
/**************************************************************************
*
* 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>
* Brian Paul
*/
#include "pipe/p_util.h"
#include "pipe/p_shader_tokens.h"
#include "draw_private.h"
#include "draw_context.h"
#include "draw_vs.h"
/**
* Run the vertex shader on all vertices in the vertex queue.
* Called by the draw module when the vertx cache needs to be flushed.
*/
void
draw_vertex_shader_queue_flush(struct draw_context *draw)
{
struct draw_vertex_shader *shader = draw->vertex_shader;
unsigned i;
assert(draw->vs.queue_nr != 0);
/* XXX: do this on statechange:
*/
shader->prepare( shader, draw );
// fprintf(stderr, "%s %d\n", __FUNCTION__, draw->vs.queue_nr );
/* run vertex shader on vertex cache entries, four per invokation */
for (i = 0; i < draw->vs.queue_nr; i += MAX_SHADER_VERTICES) {
unsigned elts[MAX_SHADER_VERTICES];
int j, n = MIN2(MAX_SHADER_VERTICES, draw->vs.queue_nr - i);
struct vertex_header *dests =
draw_header_from_block(draw->vs.vertex_cache, i);
for (j = 0; j < n; j++) {
elts[j] = draw->vs.elts[i + j];
}
for ( ; j < MAX_SHADER_VERTICES; j++) {
elts[j] = elts[0];
}
assert(n > 0);
assert(n <= MAX_SHADER_VERTICES);
shader->run(shader, draw, elts, n, dests);
}
draw->vs.post_nr = draw->vs.queue_nr;
draw->vs.queue_nr = 0;
}
struct draw_vertex_shader *
draw_create_vertex_shader(struct draw_context *draw,
const struct pipe_shader_state *shader)
{
struct draw_vertex_shader *vs;
vs = draw_create_vs_llvm( draw, shader );
if (!vs) {
vs = draw_create_vs_sse( draw, shader );
if (!vs) {
vs = draw_create_vs_exec( draw, shader );
}
}
assert(vs);
tgsi_scan_shader(shader->tokens, &vs->info);
return vs;
}
void
draw_bind_vertex_shader(struct draw_context *draw,
struct draw_vertex_shader *dvs)
{
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
if (dvs)
{
draw->vertex_shader = dvs;
draw->num_vs_outputs = dvs->info.num_outputs;
tgsi_exec_machine_init(&draw->machine);
dvs->prepare( dvs, draw );
}
else {
draw->vertex_shader = NULL;
draw->num_vs_outputs = 0;
}
}
void
draw_delete_vertex_shader(struct draw_context *draw,
struct draw_vertex_shader *dvs)
{
dvs->delete( dvs );
}
|
