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_memory.h"
34 #include "util/u_transfer.h"
35 #include "svga_screen_cache.h"
36
37 struct pipe_context;
38 struct pipe_screen;
39 struct svga_context;
40 struct svga_winsys_surface;
41 enum SVGA3dSurfaceFormat;
42
43
44 #define SVGA_MAX_TEXTURE_LEVELS 16
45
46
47 extern struct u_resource_vtbl svga_texture_vtbl;
48
49
50 struct svga_texture
51 {
52 struct u_resource b;
53
54 ushort *defined;
55
56 struct svga_sampler_view *cached_view;
57
58 unsigned view_age[SVGA_MAX_TEXTURE_LEVELS];
59 unsigned age;
60
61 boolean views_modified;
62
63 /**
64 * Creation key for the host surface handle.
65 *
66 * This structure describes all the host surface characteristics so that it
67 * can be looked up in cache, since creating a host surface is often a slow
68 * operation.
69 */
70 struct svga_host_surface_cache_key key;
71
72 /**
73 * Handle for the host side surface.
74 *
75 * This handle is owned by this texture. Views should hold on to a reference
76 * to this texture and never destroy this handle directly.
77 */
78 struct svga_winsys_surface *handle;
79
80 /**
81 * Whether the host side surface is validated, either through the
82 * InvalidateGBSurface command or after the surface is updated
83 * or rendered to.
84 */
85 boolean validated;
86
87 /**
88 * Whether the host side surface is imported and not created by this
89 * driver.
90 */
91 boolean imported;
92
93 /**
94 * Whether texture upload buffer can be used on this texture
95 */
96 boolean can_use_upload;
97
98 unsigned size; /**< Approximate size in bytes */
99
100 /** array indexed by cube face or 3D/array slice, one bit per mipmap level */
101 ushort *rendered_to;
102
103 /** array indexed by cube face or 3D/array slice, one bit per mipmap level.
104 * Set if the level is marked as dirty.
105 */
106 ushort *dirty;
107 };
108
109
110
111 /* Note this is only used for texture (not buffer) transfers:
112 */
113 struct svga_transfer
114 {
115 struct pipe_transfer base;
116
117 unsigned slice; /**< array slice or cube face */
118
119 struct svga_winsys_buffer *hwbuf;
120
121 /* Height of the hardware buffer in pixel blocks */
122 unsigned hw_nblocksy;
123
124 /* Temporary malloc buffer when we can't allocate a hardware buffer
125 * big enough */
126 void *swbuf;
127
128 /* True if guest backed surface is supported and we can directly map
129 * to the surface for this transfer.
130 */
131 boolean use_direct_map;
132
133 struct {
134 struct pipe_resource *buf; /* points to the upload buffer if this
135 * transfer is done via the upload buffer
136 * instead of directly mapping to the
137 * resource's surface.
138 */
139 void *map;
140 unsigned offset;
141 SVGA3dBox box;
142 unsigned nlayers;
143 } upload;
144 };
145
146
147 static inline struct svga_texture *
svga_texture(struct pipe_resource * resource)148 svga_texture(struct pipe_resource *resource)
149 {
150 struct svga_texture *tex = (struct svga_texture *)resource;
151 assert(tex == NULL || tex->b.vtbl == &svga_texture_vtbl);
152 return tex;
153 }
154
155
156 static inline struct svga_transfer *
svga_transfer(struct pipe_transfer * transfer)157 svga_transfer(struct pipe_transfer *transfer)
158 {
159 assert(transfer);
160 return (struct svga_transfer *)transfer;
161 }
162
163
164 /**
165 * Increment the age of a view into a texture
166 * This is used to track updates to textures when we draw into
167 * them via a surface.
168 */
169 static inline void
svga_age_texture_view(struct svga_texture * tex,unsigned level)170 svga_age_texture_view(struct svga_texture *tex, unsigned level)
171 {
172 assert(level < ARRAY_SIZE(tex->view_age));
173 tex->view_age[level] = ++(tex->age);
174 }
175
176
177 /** For debugging, check that face and level are legal */
178 static inline void
check_face_level(const struct svga_texture * tex,unsigned face,unsigned level)179 check_face_level(const struct svga_texture *tex,
180 unsigned face, unsigned level)
181 {
182 if (tex->b.b.target == PIPE_TEXTURE_CUBE) {
183 assert(face < 6);
184 }
185 else if (tex->b.b.target == PIPE_TEXTURE_3D) {
186 assert(face < tex->b.b.depth0);
187 }
188 else {
189 assert(face < tex->b.b.array_size);
190 }
191
192 assert(level < 8 * sizeof(tex->rendered_to[0]));
193 }
194
195
196 /**
197 * Mark the given texture face/level as being defined.
198 */
199 static inline void
svga_define_texture_level(struct svga_texture * tex,unsigned face,unsigned level)200 svga_define_texture_level(struct svga_texture *tex,
201 unsigned face,unsigned level)
202 {
203 check_face_level(tex, face, level);
204 tex->defined[face] |= 1 << level;
205 tex->validated = TRUE;
206 }
207
208
209 static inline bool
svga_is_texture_level_defined(const struct svga_texture * tex,unsigned face,unsigned level)210 svga_is_texture_level_defined(const struct svga_texture *tex,
211 unsigned face, unsigned level)
212 {
213 check_face_level(tex, face, level);
214 return (tex->defined[face] & (1 << level)) != 0;
215 }
216
217
218 static inline void
svga_set_texture_rendered_to(struct svga_texture * tex,unsigned face,unsigned level)219 svga_set_texture_rendered_to(struct svga_texture *tex,
220 unsigned face, unsigned level)
221 {
222 check_face_level(tex, face, level);
223 tex->rendered_to[face] |= 1 << level;
224 tex->validated = TRUE;
225 }
226
227
228 static inline void
svga_clear_texture_rendered_to(struct svga_texture * tex,unsigned face,unsigned level)229 svga_clear_texture_rendered_to(struct svga_texture *tex,
230 unsigned face, unsigned level)
231 {
232 check_face_level(tex, face, level);
233 tex->rendered_to[face] &= ~(1 << level);
234 }
235
236
237 static inline boolean
svga_was_texture_rendered_to(const struct svga_texture * tex,unsigned face,unsigned level)238 svga_was_texture_rendered_to(const struct svga_texture *tex,
239 unsigned face, unsigned level)
240 {
241 check_face_level(tex, face, level);
242 return !!(tex->rendered_to[face] & (1 << level));
243 }
244
245 static inline void
svga_set_texture_dirty(struct svga_texture * tex,unsigned face,unsigned level)246 svga_set_texture_dirty(struct svga_texture *tex,
247 unsigned face, unsigned level)
248 {
249 check_face_level(tex, face, level);
250 tex->dirty[face] |= 1 << level;
251 }
252
253 static inline void
svga_clear_texture_dirty(struct svga_texture * tex)254 svga_clear_texture_dirty(struct svga_texture *tex)
255 {
256 unsigned i;
257 for (i = 0; i < tex->b.b.depth0 * tex->b.b.array_size; i++) {
258 tex->dirty[i] = 0;
259 }
260 }
261
262 static inline boolean
svga_is_texture_dirty(const struct svga_texture * tex,unsigned face,unsigned level)263 svga_is_texture_dirty(const struct svga_texture *tex,
264 unsigned face, unsigned level)
265 {
266 check_face_level(tex, face, level);
267 return !!(tex->dirty[face] & (1 << level));
268 }
269
270 struct pipe_resource *
271 svga_texture_create(struct pipe_screen *screen,
272 const struct pipe_resource *template);
273
274 struct pipe_resource *
275 svga_texture_from_handle(struct pipe_screen * screen,
276 const struct pipe_resource *template,
277 struct winsys_handle *whandle);
278
279 boolean
280 svga_texture_generate_mipmap(struct pipe_context *pipe,
281 struct pipe_resource *pt,
282 enum pipe_format format,
283 unsigned base_level,
284 unsigned last_level,
285 unsigned first_layer,
286 unsigned last_layer);
287
288 boolean
289 svga_texture_transfer_map_upload_create(struct svga_context *svga);
290
291 void
292 svga_texture_transfer_map_upload_destroy(struct svga_context *svga);
293
294 boolean
295 svga_texture_transfer_map_can_upload(const struct svga_screen *svgascreen,
296 const struct pipe_resource *pt);
297
298 void *
299 svga_texture_transfer_map_upload(struct svga_context *svga,
300 struct svga_transfer *st);
301
302 void
303 svga_texture_transfer_unmap_upload(struct svga_context *svga,
304 struct svga_transfer *st);
305
306 #endif /* SVGA_TEXTURE_H */
307