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
|
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "pipe/p_inlines.h"
#include "nv04_context.h"
#include "nv04_screen.h"
static void
nv04_miptree_layout(struct nv04_miptree *nv04mt)
{
struct pipe_texture *pt = &nv04mt->base;
uint width = pt->width[0], height = pt->height[0];
uint offset = 0;
int nr_faces, l;
nr_faces = 1;
for (l = 0; l <= pt->last_level; l++) {
pt->width[l] = width;
pt->height[l] = height;
pt->nblocksx[l] = pf_get_nblocksx(&pt->block, width);
pt->nblocksy[l] = pf_get_nblocksy(&pt->block, height);
nv04mt->level[l].pitch = pt->width[0];
nv04mt->level[l].pitch = (nv04mt->level[l].pitch + 63) & ~63;
width = MAX2(1, width >> 1);
height = MAX2(1, height >> 1);
}
for (l = 0; l <= pt->last_level; l++) {
nv04mt->level[l].image_offset = offset;
offset += nv04mt->level[l].pitch * pt->height[l];
}
nv04mt->total_size = offset;
}
static struct pipe_texture *
nv04_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt)
{
struct nv04_miptree *mt;
mt = MALLOC(sizeof(struct nv04_miptree));
if (!mt)
return NULL;
mt->base = *pt;
pipe_reference_init(&mt->base.reference, 1);
mt->base.screen = pscreen;
//mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
nv04_miptree_layout(mt);
mt->buffer = pscreen->buffer_create(pscreen, 256, PIPE_BUFFER_USAGE_PIXEL |
NOUVEAU_BUFFER_USAGE_TEXTURE,
mt->total_size);
if (!mt->buffer) {
printf("failed %d byte alloc\n",mt->total_size);
FREE(mt);
return NULL;
}
return &mt->base;
}
static struct pipe_texture *
nv04_miptree_blanket(struct pipe_screen *pscreen, const struct pipe_texture *pt,
const unsigned *stride, struct pipe_buffer *pb)
{
struct nv04_miptree *mt;
/* Only supports 2D, non-mipmapped textures for the moment */
if (pt->target != PIPE_TEXTURE_2D || pt->last_level != 0 ||
pt->depth[0] != 1)
return NULL;
mt = CALLOC_STRUCT(nv04_miptree);
if (!mt)
return NULL;
mt->base = *pt;
pipe_reference_init(&mt->base.reference, 1);
mt->base.screen = pscreen;
mt->level[0].pitch = stride[0];
mt->level[0].image_offset = CALLOC(1, sizeof(unsigned));
pipe_buffer_reference(&mt->buffer, pb);
return &mt->base;
}
static void
nv04_miptree_destroy(struct pipe_texture *pt)
{
struct nv04_miptree *mt = (struct nv04_miptree *)pt;
int l;
pipe_buffer_reference(&mt->buffer, NULL);
for (l = 0; l <= pt->last_level; l++) {
if (mt->level[l].image_offset)
FREE(mt->level[l].image_offset);
}
FREE(mt);
}
static struct pipe_surface *
nv04_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
unsigned face, unsigned level, unsigned zslice,
unsigned flags)
{
struct nv04_miptree *nv04mt = (struct nv04_miptree *)pt;
struct nv04_surface *ns;
ns = CALLOC_STRUCT(nv04_surface);
if (!ns)
return NULL;
pipe_texture_reference(&ns->base.texture, pt);
ns->base.format = pt->format;
ns->base.width = pt->width[level];
ns->base.height = pt->height[level];
ns->base.usage = flags;
ns->base.status = PIPE_SURFACE_STATUS_DEFINED;
pipe_reference_init(&ns->base.reference, 1);
ns->base.face = face;
ns->base.level = level;
ns->base.zslice = zslice;
ns->pitch = nv04mt->level[level].pitch;
ns->base.offset = nv04mt->level[level].image_offset;
return &ns->base;
}
static void
nv04_miptree_surface_del(struct pipe_surface *ps)
{
pipe_texture_reference(&ps->texture, NULL);
FREE(ps);
}
void
nv04_screen_init_miptree_functions(struct pipe_screen *pscreen)
{
pscreen->texture_create = nv04_miptree_create;
pscreen->texture_blanket = nv04_miptree_blanket;
pscreen->texture_destroy = nv04_miptree_destroy;
pscreen->get_tex_surface = nv04_miptree_surface_new;
pscreen->tex_surface_destroy = nv04_miptree_surface_del;
}
|
