blob: f5c4206f4021567a811e9abc0f7f5393b68a582e (
plain)
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
|
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "pipe/p_util.h"
#include "nv40_context.h"
boolean
nv40_miptree_layout(struct pipe_context *pipe, struct pipe_mipmap_tree *mt)
{
boolean swizzled = FALSE;
uint width = mt->width0, height = mt->height0, depth = mt->depth0;
uint offset;
int nr_faces, l, f;
mt->pitch = mt->width0;
mt->total_height = 0;
if (mt->target == PIPE_TEXTURE_CUBE) {
nr_faces = 6;
} else
if (mt->target == PIPE_TEXTURE_3D) {
nr_faces = mt->depth0;
} else {
nr_faces = 1;
}
for (l = mt->first_level; l <= mt->last_level; l++) {
mt->level[l].width = width;
mt->level[l].height = height;
mt->level[l].depth = depth;
mt->level[l].level_offset = 0;
mt->level[l].nr_images = nr_faces;
mt->level[l].image_offset = malloc(nr_faces * sizeof(unsigned));
for (f = 0; f < nr_faces; f++)
mt->total_height += height;
width = MAX2(1, width >> 1);
height = MAX2(1, height >> 1);
depth = MAX2(1, depth >> 1);
}
offset = 0;
for (f = 0; f < nr_faces; f++) {
for (l = mt->first_level; l <= mt->last_level; l++) {
if (f == 0) {
mt->level[l].level_offset = offset;
}
uint pitch;
if (swizzled)
pitch = mt->level[l].width * mt->cpp;
else
pitch = mt->width0 * mt->cpp;
pitch = (pitch + 63) & ~63;
mt->level[l].image_offset[f] =
(offset - mt->level[l].level_offset) / mt->cpp;
offset += pitch * mt->level[l].height;
}
}
return TRUE;
}
|
