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
|
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "pipe/p_util.h"
#include "pipe/p_inlines.h"
#include "nv10_context.h"
#include "nv10_screen.h"
static void
nv10_miptree_layout(struct nv10_miptree *nv10mt)
{
struct pipe_texture *pt = &nv10mt->base;
boolean swizzled = FALSE;
uint width = pt->width[0], height = pt->height[0], depth = pt->depth[0];
uint offset = 0;
int nr_faces, l, f;
if (pt->target == PIPE_TEXTURE_CUBE) {
nr_faces = 6;
} else {
nr_faces = 1;
}
for (l = 0; l <= pt->last_level; l++) {
pt->width[l] = width;
pt->height[l] = height;
pt->depth[l] = depth;
if (swizzled)
nv10mt->level[l].pitch = pt->width[l] * pt->cpp;
else
nv10mt->level[l].pitch = pt->width[0] * pt->cpp;
nv10mt->level[l].pitch = (nv10mt->level[l].pitch + 63) & ~63;
nv10mt->level[l].image_offset =
CALLOC(nr_faces, sizeof(unsigned));
width = MAX2(1, width >> 1);
height = MAX2(1, height >> 1);
depth = MAX2(1, depth >> 1);
}
for (f = 0; f < nr_faces; f++) {
for (l = 0; l <= pt->last_level; l++) {
nv10mt->level[l].image_offset[f] = offset;
offset += nv10mt->level[l].pitch * pt->height[l];
}
}
nv10mt->total_size = offset;
}
static struct pipe_texture *
nv10_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt)
{
struct pipe_winsys *ws = screen->winsys;
struct nv10_miptree *mt;
mt = MALLOC(sizeof(struct nv10_miptree));
if (!mt)
return NULL;
mt->base = *pt;
mt->base.refcount = 1;
mt->base.screen = screen;
nv10_miptree_layout(mt);
mt->buffer = ws->buffer_create(ws, 256, PIPE_BUFFER_USAGE_PIXEL,
mt->total_size);
if (!mt->buffer) {
FREE(mt);
return NULL;
}
return &mt->base;
}
static void
nv10_miptree_release(struct pipe_screen *screen, struct pipe_texture **pt)
{
struct pipe_winsys *ws = screen->winsys;
struct pipe_texture *mt = *pt;
*pt = NULL;
if (--mt->refcount <= 0) {
struct nv10_miptree *nv10mt = (struct nv10_miptree *)mt;
int l;
pipe_buffer_reference(ws, &nv10mt->buffer, NULL);
for (l = 0; l <= mt->last_level; l++) {
if (nv10mt->level[l].image_offset)
FREE(nv10mt->level[l].image_offset);
}
FREE(nv10mt);
}
}
static void
nv10_miptree_update(struct pipe_context *pipe, struct pipe_texture *mt,
uint face, uint levels)
{
}
static struct pipe_surface *
nv10_miptree_surface_get(struct pipe_screen *screen, struct pipe_texture *pt,
unsigned face, unsigned level, unsigned zslice,
unsigned flags)
{
struct pipe_winsys *ws = screen->winsys;
struct nv10_miptree *nv10mt = (struct nv10_miptree *)pt;
struct pipe_surface *ps;
ps = ws->surface_alloc(ws);
if (!ps)
return NULL;
pipe_buffer_reference(ws, &ps->buffer, nv10mt->buffer);
ps->format = pt->format;
ps->cpp = pt->cpp;
ps->width = pt->width[level];
ps->height = pt->height[level];
ps->pitch = nv10mt->level[level].pitch / ps->cpp;
if (pt->target == PIPE_TEXTURE_CUBE) {
ps->offset = nv10mt->level[level].image_offset[face];
} else {
ps->offset = nv10mt->level[level].image_offset[0];
}
return ps;
}
static void
nv10_miptree_surface_release(struct pipe_screen *screen,
struct pipe_surface **surface)
{
}
void nv10_screen_init_miptree_functions(struct pipe_screen *pscreen)
{
pscreen->texture_create = nv10_miptree_create;
pscreen->texture_release = nv10_miptree_release;
pscreen->get_tex_surface = nv10_miptree_surface_get;
pscreen->tex_surface_release = nv10_miptree_surface_release;
}
|
