1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26 #ifndef SVGA_TEXTURE_H
27 #define SVGA_TEXTURE_H
28
29
30 #include "pipe/p_compiler.h"
31 #include "pipe/p_state.h"
32 #include "util/u_inlines.h"
33 #include "util/u_transfer.h"
34 #include "svga_screen_cache.h"
35
36 struct pipe_context;
37 struct pipe_screen;
38 struct svga_context;
39 struct svga_winsys_surface;
40 enum SVGA3dSurfaceFormat;
41
42
43 #define SVGA_MAX_TEXTURE_LEVELS 16
44
45
46 extern struct u_resource_vtbl svga_texture_vtbl;
47
48
49 struct svga_texture
50 {
51 struct u_resource b;
52
53 boolean defined[6][SVGA_MAX_TEXTURE_LEVELS];
54
55 struct svga_sampler_view *cached_view;
56
57 unsigned view_age[SVGA_MAX_TEXTURE_LEVELS];
58 unsigned age;
59
60 boolean views_modified;
61
62 /**
63 * Creation key for the host surface handle.
64 *
65 * This structure describes all the host surface characteristics so that it
66 * can be looked up in cache, since creating a host surface is often a slow
67 * operation.
68 */
69 struct svga_host_surface_cache_key key;
70
71 /**
72 * Handle for the host side surface.
73 *
74 * This handle is owned by this texture. Views should hold on to a reference
75 * to this texture and never destroy this handle directly.
76 */
77 struct svga_winsys_surface *handle;
78 };
79
80
81
82 /* Note this is only used for texture (not buffer) transfers:
83 */
84 struct svga_transfer
85 {
86 struct pipe_transfer base;
87
88 unsigned face;
89
90 struct svga_winsys_buffer *hwbuf;
91
92 /* Height of the hardware buffer in pixel blocks */
93 unsigned hw_nblocksy;
94
95 /* Temporary malloc buffer when we can't allocate a hardware buffer
96 * big enough */
97 void *swbuf;
98 };
99
100
svga_texture(struct pipe_resource * resource)101 static INLINE struct svga_texture *svga_texture( struct pipe_resource *resource )
102 {
103 struct svga_texture *tex = (struct svga_texture *)resource;
104 assert(tex == NULL || tex->b.vtbl == &svga_texture_vtbl);
105 return tex;
106 }
107
108
109 static INLINE struct svga_transfer *
svga_transfer(struct pipe_transfer * transfer)110 svga_transfer(struct pipe_transfer *transfer)
111 {
112 assert(transfer);
113 return (struct svga_transfer *)transfer;
114 }
115
116
117
118 struct pipe_resource *
119 svga_texture_create(struct pipe_screen *screen,
120 const struct pipe_resource *template);
121
122 struct pipe_resource *
123 svga_texture_from_handle(struct pipe_screen * screen,
124 const struct pipe_resource *template,
125 struct winsys_handle *whandle);
126
127
128
129
130 #endif /* SVGA_TEXTURE_H */
131