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
|
#include "draw/draw_context.h"
#include "pipe/p_context.h"
#include "pipe/p_state.h"
#include "pipe/p_inlines.h"
#include "nv20_context.h"
#include "nv20_state.h"
#include "nouveau/nouveau_channel.h"
#include "nouveau/nouveau_pushbuf.h"
boolean nv20_draw_elements( struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned prim, unsigned start, unsigned count)
{
struct pipe_screen *pscreen = pipe->screen;
struct nv20_context *nv20 = nv20_context( pipe );
struct draw_context *draw = nv20->draw;
unsigned i;
nv20_emit_hw_state(nv20);
/*
* Map vertex buffers
*/
for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
if (nv20->vtxbuf[i].buffer) {
void *buf
= pipe_buffer_map(pscreen,
nv20->vtxbuf[i].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(draw, i, buf);
}
}
/* Map index buffer, if present */
if (indexBuffer) {
void *mapped_indexes
= pipe_buffer_map(pscreen, indexBuffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
}
else {
/* no index/element buffer */
draw_set_mapped_element_buffer(draw, 0, NULL);
}
draw_set_mapped_constant_buffer(draw,
nv20->constbuf[PIPE_SHADER_VERTEX],
nv20->constbuf_nr[PIPE_SHADER_VERTEX]);
/* draw! */
draw_arrays(nv20->draw, prim, start, count);
/*
* unmap vertex/index buffers
*/
for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
if (nv20->vtxbuf[i].buffer) {
pipe_buffer_unmap(pscreen, nv20->vtxbuf[i].buffer);
draw_set_mapped_vertex_buffer(draw, i, NULL);
}
}
if (indexBuffer) {
pipe_buffer_unmap(pscreen, indexBuffer);
draw_set_mapped_element_buffer(draw, 0, NULL);
}
draw_flush(nv20->draw);
return TRUE;
}
boolean nv20_draw_arrays( struct pipe_context *pipe,
unsigned prim, unsigned start, unsigned count)
{
return nv20_draw_elements(pipe, NULL, 0, prim, start, count);
}
|
