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
196
|
#include <pipe/p_state.h>
#include <pipe/p_defines.h>
#include <pipe/p_inlines.h>
#include <util/u_memory.h>
#include <nouveau/nouveau_winsys.h>
#include "nv40_context.h"
#include "nv40_screen.h"
#include "nv40_state.h"
struct nv40_transfer {
struct pipe_transfer base;
struct pipe_surface *surface;
bool direct;
};
static unsigned nv40_usage_tx_to_buf(unsigned tx_usage)
{
switch (tx_usage) {
case PIPE_TRANSFER_READ:
return PIPE_BUFFER_USAGE_CPU_READ;
case PIPE_TRANSFER_WRITE:
return PIPE_BUFFER_USAGE_CPU_WRITE;
case PIPE_TRANSFER_READ_WRITE:
return PIPE_BUFFER_USAGE_CPU_READ_WRITE;
default:
assert(0);
}
return -1;
}
static void
nv40_compatible_transfer_tex(struct pipe_texture *pt, unsigned level,
struct pipe_texture *template)
{
memset(template, 0, sizeof(struct pipe_texture));
template->target = pt->target;
template->format = pt->format;
template->width[0] = pt->width[level];
template->height[0] = pt->height[level];
template->depth[0] = 1;
template->block = pt->block;
template->nblocksx[0] = pt->nblocksx[level];
template->nblocksy[0] = pt->nblocksx[level];
template->last_level = 0;
template->compressed = pt->compressed;
template->nr_samples = pt->nr_samples;
template->tex_usage = PIPE_TEXTURE_USAGE_DYNAMIC |
NOUVEAU_TEXTURE_USAGE_LINEAR;
}
static struct pipe_transfer *
nv40_transfer_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
unsigned face, unsigned level, unsigned zslice,
enum pipe_transfer_usage usage,
unsigned x, unsigned y, unsigned w, unsigned h)
{
struct nv40_miptree *mt = (struct nv40_miptree *)pt;
struct nv40_transfer *tx;
struct pipe_texture tx_tex_template, *tx_tex;
tx = CALLOC_STRUCT(nv40_transfer);
if (!tx)
return NULL;
pipe_texture_reference(&tx->base.texture, pt);
tx->base.format = pt->format;
tx->base.x = x;
tx->base.y = y;
tx->base.width = w;
tx->base.height = h;
tx->base.block = pt->block;
tx->base.nblocksx = pt->nblocksx[level];
tx->base.nblocksy = pt->nblocksy[level];
tx->base.stride = mt->level[level].pitch;
tx->base.usage = usage;
tx->base.face = face;
tx->base.level = level;
tx->base.zslice = zslice;
/* Direct access to texture */
if ((pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC ||
debug_get_bool_option("NOUVEAU_NO_TRANSFER", TRUE/*XXX:FALSE*/)) &&
pt->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)
{
tx->direct = true;
tx->surface = pscreen->get_tex_surface(pscreen, pt,
face, level, zslice,
nv40_usage_tx_to_buf(usage));
return &tx->base;
}
tx->direct = false;
nv40_compatible_transfer_tex(pt, level, &tx_tex_template);
tx_tex = pscreen->texture_create(pscreen, &tx_tex_template);
if (!tx_tex)
{
FREE(tx);
return NULL;
}
tx->surface = pscreen->get_tex_surface(pscreen, tx_tex,
0, 0, 0,
nv40_usage_tx_to_buf(usage));
pipe_texture_reference(&tx_tex, NULL);
if (!tx->surface)
{
pipe_surface_reference(&tx->surface, NULL);
FREE(tx);
return NULL;
}
if (usage != PIPE_TRANSFER_WRITE) {
struct nv40_screen *nvscreen = nv40_screen(pscreen);
struct pipe_surface *src;
src = pscreen->get_tex_surface(pscreen, pt,
face, level, zslice,
PIPE_BUFFER_USAGE_GPU_READ);
/* TODO: Check if SIFM can deal with x,y,w,h when swizzling */
/* TODO: Check if SIFM can un-swizzle */
nvscreen->eng2d->copy(nvscreen->eng2d,
tx->surface, 0, 0,
src, 0, 0,
src->width, src->height);
pipe_surface_reference(&src, NULL);
}
return &tx->base;
}
static void
nv40_transfer_del(struct pipe_screen *pscreen, struct pipe_transfer *ptx)
{
struct nv40_transfer *tx = (struct nv40_transfer *)ptx;
if (!tx->direct && ptx->usage != PIPE_TRANSFER_READ) {
struct pipe_screen *pscreen = ptx->texture->screen;
struct nv40_screen *nvscreen = nv40_screen(pscreen);
struct pipe_surface *dst;
dst = pscreen->get_tex_surface(pscreen, ptx->texture,
ptx->face, ptx->level, ptx->zslice,
PIPE_BUFFER_USAGE_GPU_WRITE);
/* TODO: Check if SIFM can deal with x,y,w,h when swizzling */
nvscreen->eng2d->copy(nvscreen->eng2d,
dst, 0, 0,
tx->surface, 0, 0,
dst->width, dst->height);
pipe_surface_reference(&dst, NULL);
}
pipe_surface_reference(&tx->surface, NULL);
pipe_texture_reference(&ptx->texture, NULL);
FREE(ptx);
}
static void *
nv40_transfer_map(struct pipe_screen *pscreen, struct pipe_transfer *ptx)
{
struct nv40_transfer *tx = (struct nv40_transfer *)ptx;
struct nv04_surface *ns = (struct nv04_surface *)tx->surface;
struct nv40_miptree *mt = (struct nv40_miptree *)tx->surface->texture;
void *map = pipe_buffer_map(pscreen, mt->buffer,
nv40_usage_tx_to_buf(ptx->usage));
return map + ns->base.offset +
ptx->y * ns->pitch + ptx->x * ptx->block.size;
}
static void
nv40_transfer_unmap(struct pipe_screen *pscreen, struct pipe_transfer *ptx)
{
struct nv40_transfer *tx = (struct nv40_transfer *)ptx;
struct nv40_miptree *mt = (struct nv40_miptree *)tx->surface->texture;
pipe_buffer_unmap(pscreen, mt->buffer);
}
void
nv40_screen_init_transfer_functions(struct pipe_screen *pscreen)
{
pscreen->get_tex_transfer = nv40_transfer_new;
pscreen->tex_transfer_destroy = nv40_transfer_del;
pscreen->transfer_map = nv40_transfer_map;
pscreen->transfer_unmap = nv40_transfer_unmap;
}
|
