2 * Copyright 2008 Ben Skeggs
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
18 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
19 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 #include "pipe/p_state.h"
24 #include "pipe/p_defines.h"
25 #include "pipe/p_inlines.h"
27 #include "nv50_context.h"
29 static struct pipe_texture
*
30 nv50_miptree_create(struct pipe_screen
*pscreen
, const struct pipe_texture
*pt
)
32 struct pipe_winsys
*ws
= pscreen
->winsys
;
33 struct nv50_miptree
*mt
= CALLOC_STRUCT(nv50_miptree
);
34 unsigned usage
, pitch
;
37 mt
->base
.refcount
= 1;
38 mt
->base
.screen
= pscreen
;
40 usage
= PIPE_BUFFER_USAGE_PIXEL
;
42 case PIPE_FORMAT_Z24S8_UNORM
:
43 case PIPE_FORMAT_Z16_UNORM
:
44 usage
|= NOUVEAU_BUFFER_USAGE_ZETA
;
50 pitch
= ((pt
->width
[0] + 63) & ~63) * pt
->block
.size
;
54 mt
->buffer
= ws
->buffer_create(ws
, 256, usage
, pitch
* pt
->height
[0]);
64 nv50_miptree_release(struct pipe_screen
*pscreen
, struct pipe_texture
**ppt
)
66 struct pipe_texture
*pt
= *ppt
;
70 if (--pt
->refcount
<= 0) {
71 struct nv50_miptree
*mt
= nv50_miptree(pt
);
73 pipe_buffer_reference(pscreen
, &mt
->buffer
, NULL
);
78 static struct pipe_surface
*
79 nv50_miptree_surface_new(struct pipe_screen
*pscreen
, struct pipe_texture
*pt
,
80 unsigned face
, unsigned level
, unsigned zslice
,
83 struct nv50_miptree
*mt
= nv50_miptree(pt
);
84 struct nv50_surface
*s
;
85 struct pipe_surface
*ps
;
87 s
= CALLOC_STRUCT(nv50_surface
);
93 ps
->winsys
= pscreen
->winsys
;
94 ps
->format
= pt
->format
;
95 ps
->width
= pt
->width
[level
];
96 ps
->height
= pt
->height
[level
];
97 ps
->block
= pt
->block
;
98 ps
->nblocksx
= pt
->nblocksx
[level
];
99 ps
->nblocksy
= pt
->nblocksy
[level
];
100 ps
->stride
= ps
->width
* ps
->block
.size
;
103 ps
->status
= PIPE_SURFACE_STATUS_DEFINED
;
105 pipe_texture_reference(&ps
->texture
, pt
);
106 pipe_buffer_reference(pscreen
, &ps
->buffer
, mt
->buffer
);
112 nv50_miptree_surface_del(struct pipe_screen
*pscreen
,
113 struct pipe_surface
**psurface
)
115 struct pipe_surface
*ps
= *psurface
;
116 struct nv50_surface
*s
= nv50_surface(ps
);
120 if (--ps
->refcount
<= 0) {
121 pipe_texture_reference(&ps
->texture
, NULL
);
122 pipe_buffer_reference(pscreen
, &ps
->buffer
, NULL
);
128 nv50_screen_init_miptree_functions(struct pipe_screen
*pscreen
)
130 pscreen
->texture_create
= nv50_miptree_create
;
131 pscreen
->texture_release
= nv50_miptree_release
;
132 pscreen
->get_tex_surface
= nv50_miptree_surface_new
;
133 pscreen
->tex_surface_release
= nv50_miptree_surface_del
;