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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "pipe/p_inlines.h"
#include "nv30_context.h"
static void
nv30_miptree_layout(struct nv30_miptree *nv30mt)
{
struct pipe_texture *pt = &nv30mt->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, pitch;
if (pt->target == PIPE_TEXTURE_CUBE) {
nr_faces = 6;
} else
if (pt->target == PIPE_TEXTURE_3D) {
nr_faces = pt->depth[0];
} else {
nr_faces = 1;
}
pitch = pt->width[0];
for (l = 0; l <= pt->last_level; l++) {
pt->width[l] = width;
pt->height[l] = height;
pt->depth[l] = depth;
pt->nblocksx[l] = pf_get_nblocksx(&pt->block, width);
pt->nblocksy[l] = pf_get_nblocksy(&pt->block, height);
if (swizzled)
pitch = pt->nblocksx[l];
pitch = align(pitch, 64);
nv30mt->level[l].pitch = pitch * pt->block.size;
nv30mt->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++) {
nv30mt->level[l].image_offset[f] = offset;
offset += nv30mt->level[l].pitch * pt->height[l];
}
}
nv30mt->total_size = offset;
}
static struct pipe_texture *
nv30_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt)
{
struct pipe_winsys *ws = pscreen->winsys;
struct nv30_miptree *mt;
mt = MALLOC(sizeof(struct nv30_miptree));
if (!mt)
return NULL;
mt->base = *pt;
mt->base.refcount = 1;
mt->base.screen = pscreen;
mt->shadow_tex = NULL;
mt->shadow_surface = NULL;
/* Swizzled textures must be POT */
if (pt->width[0] & (pt->width[0] - 1) ||
pt->height[0] & (pt->height[0] - 1))
mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
else
if (pt->tex_usage & (PIPE_TEXTURE_USAGE_PRIMARY |
PIPE_TEXTURE_USAGE_DISPLAY_TARGET))
mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
else
if (pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC)
mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
else {
switch (pt->format) {
/* TODO: Figure out which formats can be swizzled */
case PIPE_FORMAT_A8R8G8B8_UNORM:
case PIPE_FORMAT_X8R8G8B8_UNORM:
case PIPE_FORMAT_R16_SNORM:
break;
default:
mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
}
}
nv30_miptree_layout(mt);
mt->buffer = ws->buffer_create(ws, 256,
PIPE_BUFFER_USAGE_PIXEL |
NOUVEAU_BUFFER_USAGE_TEXTURE,
mt->total_size);
if (!mt->buffer) {
FREE(mt);
return NULL;
}
return &mt->base;
}
static void
nv30_miptree_release(struct pipe_screen *pscreen, struct pipe_texture **ppt)
{
struct pipe_texture *pt = *ppt;
struct nv30_miptree *mt = (struct nv30_miptree *)pt;
int l;
*ppt = NULL;
if (--pt->refcount)
return;
pipe_buffer_reference(pscreen, &mt->buffer, NULL);
for (l = 0; l <= pt->last_level; l++) {
if (mt->level[l].image_offset)
FREE(mt->level[l].image_offset);
}
if (mt->shadow_tex) {
assert(mt->shadow_surface);
pscreen->tex_surface_release(pscreen, &mt->shadow_surface);
nv30_miptree_release(pscreen, &mt->shadow_tex);
}
FREE(mt);
}
static struct pipe_surface *
nv30_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
unsigned face, unsigned level, unsigned zslice,
unsigned flags)
{
struct nv30_miptree *nv30mt = (struct nv30_miptree *)pt;
struct pipe_surface *ps;
ps = CALLOC_STRUCT(pipe_surface);
if (!ps)
return NULL;
pipe_texture_reference(&ps->texture, pt);
pipe_buffer_reference(pscreen, &ps->buffer, nv30mt->buffer);
ps->format = pt->format;
ps->width = pt->width[level];
ps->height = pt->height[level];
ps->block = pt->block;
ps->nblocksx = pt->nblocksx[level];
ps->nblocksy = pt->nblocksy[level];
ps->stride = nv30mt->level[level].pitch;
ps->usage = flags;
ps->status = PIPE_SURFACE_STATUS_DEFINED;
ps->refcount = 1;
ps->face = face;
ps->level = level;
ps->zslice = zslice;
if (pt->target == PIPE_TEXTURE_CUBE) {
ps->offset = nv30mt->level[level].image_offset[face];
} else
if (pt->target == PIPE_TEXTURE_3D) {
ps->offset = nv30mt->level[level].image_offset[zslice];
} else {
ps->offset = nv30mt->level[level].image_offset[0];
}
return ps;
}
static void
nv30_miptree_surface_del(struct pipe_screen *pscreen,
struct pipe_surface **psurface)
{
struct pipe_surface *ps = *psurface;
*psurface = NULL;
if (--ps->refcount > 0)
return;
pipe_texture_reference(&ps->texture, NULL);
pipe_buffer_reference(pscreen->winsys, &ps->buffer, NULL);
FREE(ps);
}
void
nv30_screen_init_miptree_functions(struct pipe_screen *pscreen)
{
pscreen->texture_create = nv30_miptree_create;
pscreen->texture_release = nv30_miptree_release;
pscreen->get_tex_surface = nv30_miptree_surface_new;
pscreen->tex_surface_release = nv30_miptree_surface_del;
}
|
