svga_resource_texture.h revision 287c94ea4987033f9c99a2f91c5750c9083504ca 
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
36struct pipe_context;
37struct pipe_screen;
38struct svga_context;
39struct svga_winsys_surface;
40enum SVGA3dSurfaceFormat;
41
42
43#define SVGA_MAX_TEXTURE_LEVELS 16
44
45
46extern struct u_resource_vtbl svga_texture_vtbl;
47
48
49struct 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 */
84struct svga_transfer
85{
86   struct pipe_transfer base;
87
88   struct svga_winsys_buffer *hwbuf;
89
90   /* Height of the hardware buffer in pixel blocks */
91   unsigned hw_nblocksy;
92
93   /* Temporary malloc buffer when we can't allocate a hardware buffer
94    * big enough */
95   void *swbuf;
96};
97
98
99static INLINE struct svga_texture *svga_texture( struct pipe_resource *resource )
100{
101   struct svga_texture *tex = (struct svga_texture *)resource;
102   assert(tex == NULL || tex->b.vtbl == &svga_texture_vtbl);
103   return tex;
104}
105
106
107static INLINE struct svga_transfer *
108svga_transfer(struct pipe_transfer *transfer)
109{
110   assert(transfer);
111   return (struct svga_transfer *)transfer;
112}
113
114
115
116struct pipe_resource *
117svga_texture_create(struct pipe_screen *screen,
118                    const struct pipe_resource *template);
119
120struct pipe_resource *
121svga_texture_from_handle(struct pipe_screen * screen,
122			const struct pipe_resource *template,
123			struct winsys_handle *whandle);
124
125
126
127enum SVGA3dSurfaceFormat
128svga_translate_format(enum pipe_format format);
129
130enum SVGA3dSurfaceFormat
131svga_translate_format_render(enum pipe_format format);
132
133
134#endif /* SVGA_TEXTURE_H */
135