1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
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:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
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
24 **********************************************************/
30 #include "pipe/p_compiler.h"
31 #include "pipe/p_state.h"
32 #include "util/u_transfer.h"
34 #include "svga_screen_cache.h"
35 #include "svga_screen.h"
37 #include "svga_context.h"
41 * Maximum number of discontiguous ranges
43 #define SVGA_BUFFER_MAX_RANGES 32
47 struct svga_winsys_buffer
;
48 struct svga_winsys_surface
;
51 extern struct u_resource_vtbl svga_buffer_vtbl
;
53 struct svga_buffer_range
59 struct svga_3d_update_gb_image
;
69 * Regular (non DMA'able) memory.
71 * Used for user buffers or for buffers which we know before hand that can
72 * never be used by the virtual hardware directly, such as constant buffers.
77 * Whether swbuf was created by the user or not.
82 * Creation key for the host surface handle.
84 * This structure describes all the host surface characteristics so that it
85 * can be looked up in cache, since creating a host surface is often a slow
88 struct svga_host_surface_cache_key key
;
91 * Host surface handle.
93 * This is a platform independent abstraction for host SID. We create when
96 * Only set for non-user buffers.
98 struct svga_winsys_surface
*handle
;
101 * Information about ongoing and past map operations.
105 * Number of concurrent mappings.
112 * Ranges that were touched by the application and need to be uploaded to
115 * This information will be copied into dma.boxes, when emiting the
116 * SVGA3dCmdSurfaceDMA command.
118 struct svga_buffer_range ranges
[SVGA_BUFFER_MAX_RANGES
];
123 * Information about uploaded version of user buffers.
126 struct pipe_resource
*buffer
;
129 * We combine multiple user buffers into the same hardware buffer. This
130 * is the relative offset within that buffer.
135 * Range of user buffer that is uploaded in @buffer at @offset.
144 * A piece of GMR memory, with the same size of the buffer. It is created
145 * when mapping the buffer, and will be used to upload vertex data to the
148 * Only set for non-user buffers.
150 struct svga_winsys_buffer
*hwbuf
;
153 * Information about pending DMA uploads.
158 * Whether this buffer has an unfinished DMA upload command.
160 * If not set then the rest of the information is null.
164 SVGA3dSurfaceDMAFlags flags
;
167 * Pointer to the DMA copy box *inside* the command buffer.
169 SVGA3dCopyBox
*boxes
;
172 * Pointer to the sequence of update commands
173 * *inside* the command buffer.
175 struct svga_3d_update_gb_image
*updates
;
178 * Context that has the pending DMA to this buffer.
180 struct svga_context
*svga
;
184 * Linked list head, used to gather all buffers with pending dma uploads on
185 * a context. It is only valid if the dma.pending is set above.
187 struct list_head head
;
189 unsigned size
; /**< Approximate size in bytes */
193 static inline struct svga_buffer
*
194 svga_buffer(struct pipe_resource
*buffer
)
197 assert(((struct svga_buffer
*)buffer
)->b
.vtbl
== &svga_buffer_vtbl
);
198 return (struct svga_buffer
*)buffer
;
205 * Returns TRUE for user buffers. We may
206 * decide to use an alternate upload path for these buffers.
208 static inline boolean
209 svga_buffer_is_user_buffer( struct pipe_resource
*buffer
)
212 return svga_buffer(buffer
)->user
;
219 * Returns a pointer to a struct svga_winsys_screen given a
220 * struct svga_buffer.
222 static inline struct svga_winsys_screen
*
223 svga_buffer_winsys_screen(struct svga_buffer
*sbuf
)
225 return svga_screen(sbuf
->b
.b
.screen
)->sws
;
230 * Returns whether a buffer has hardware storage that is
231 * visible to the GPU.
233 static inline boolean
234 svga_buffer_has_hw_storage(struct svga_buffer
*sbuf
)
236 if (svga_buffer_winsys_screen(sbuf
)->have_gb_objects
)
237 return (sbuf
->handle
? TRUE
: FALSE
);
239 return (sbuf
->hwbuf
? TRUE
: FALSE
);
243 * Map the hardware storage of a buffer.
246 svga_buffer_hw_storage_map(struct svga_context
*svga
,
247 struct svga_buffer
*sbuf
,
248 unsigned flags
, boolean
*retry
)
250 struct svga_winsys_screen
*sws
= svga_buffer_winsys_screen(sbuf
);
251 if (sws
->have_gb_objects
) {
252 return svga
->swc
->surface_map(svga
->swc
, sbuf
->handle
, flags
, retry
);
255 return sws
->buffer_map(sws
, sbuf
->hwbuf
, flags
);
260 * Unmap the hardware storage of a buffer.
263 svga_buffer_hw_storage_unmap(struct svga_context
*svga
,
264 struct svga_buffer
*sbuf
)
266 struct svga_winsys_screen
*sws
= svga_buffer_winsys_screen(sbuf
);
268 if (sws
->have_gb_objects
) {
269 struct svga_winsys_context
*swc
= svga
->swc
;
271 swc
->surface_unmap(swc
, sbuf
->handle
, &rebind
);
274 ret
= SVGA3D_BindGBSurface(swc
, sbuf
->handle
);
275 if (ret
!= PIPE_OK
) {
276 /* flush and retry */
277 svga_context_flush(svga
, NULL
);
278 ret
= SVGA3D_BindGBSurface(swc
, sbuf
->handle
);
279 assert(ret
== PIPE_OK
);
283 sws
->buffer_unmap(sws
, sbuf
->hwbuf
);
287 struct pipe_resource
*
288 svga_user_buffer_create(struct pipe_screen
*screen
,
293 struct pipe_resource
*
294 svga_buffer_create(struct pipe_screen
*screen
,
295 const struct pipe_resource
*template);
300 * Get the host surface handle for this buffer.
302 * This will ensure the host surface is updated, issuing DMAs as needed.
304 * NOTE: This may insert new commands in the context, so it *must* be called
305 * before reserving command buffer space. And, in order to insert commands
306 * it may need to call svga_context_flush().
308 struct svga_winsys_surface
*
309 svga_buffer_handle(struct svga_context
*svga
,
310 struct pipe_resource
*buf
);
313 svga_context_flush_buffers(struct svga_context
*svga
);
315 struct svga_winsys_buffer
*
316 svga_winsys_buffer_create(struct svga_context
*svga
,
321 #endif /* SVGA_BUFFER_H */