2 * Copyright 2014, 2015 Red Hat.
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
23 #include "util/u_format.h"
24 #include "util/u_inlines.h"
25 #include "util/u_memory.h"
26 #include "virgl_context.h"
27 #include "virgl_resource.h"
28 #include "virgl_screen.h"
30 bool virgl_res_needs_flush_wait(struct virgl_context
*vctx
,
31 struct virgl_resource
*res
,
34 struct virgl_screen
*vs
= virgl_screen(vctx
->base
.screen
);
36 if ((!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) && vs
->vws
->res_is_referenced(vs
->vws
, vctx
->cbuf
, res
->hw_res
)) {
42 bool virgl_res_needs_readback(struct virgl_context
*vctx
,
43 struct virgl_resource
*res
,
49 else if (usage
& PIPE_TRANSFER_DISCARD_RANGE
)
51 else if ((usage
& (PIPE_TRANSFER_WRITE
| PIPE_TRANSFER_FLUSH_EXPLICIT
)) ==
52 (PIPE_TRANSFER_WRITE
| PIPE_TRANSFER_FLUSH_EXPLICIT
))
57 static struct pipe_resource
*virgl_resource_create(struct pipe_screen
*screen
,
58 const struct pipe_resource
*templ
)
61 struct virgl_screen
*vs
= virgl_screen(screen
);
62 struct virgl_resource
*res
= CALLOC_STRUCT(virgl_resource
);
65 res
->u
.b
.screen
= &vs
->base
;
66 pipe_reference_init(&res
->u
.b
.reference
, 1);
67 vbind
= pipe_to_virgl_bind(templ
->bind
);
68 virgl_resource_layout(&res
->u
.b
, &res
->metadata
);
69 res
->hw_res
= vs
->vws
->resource_create(vs
->vws
, templ
->target
,
77 res
->metadata
.total_size
);
83 for (uint32_t i
= 0; i
< VR_MAX_TEXTURE_2D_LEVELS
; i
++)
86 if (templ
->target
== PIPE_BUFFER
)
87 virgl_buffer_init(res
);
89 virgl_texture_init(res
);
95 static struct pipe_resource
*virgl_resource_from_handle(struct pipe_screen
*screen
,
96 const struct pipe_resource
*templ
,
97 struct winsys_handle
*whandle
,
100 struct virgl_screen
*vs
= virgl_screen(screen
);
101 if (templ
->target
== PIPE_BUFFER
)
104 struct virgl_resource
*res
= CALLOC_STRUCT(virgl_resource
);
106 res
->u
.b
.screen
= &vs
->base
;
107 pipe_reference_init(&res
->u
.b
.reference
, 1);
109 res
->hw_res
= vs
->vws
->resource_create_from_handle(vs
->vws
, whandle
);
115 virgl_texture_init(res
);
120 void virgl_init_screen_resource_functions(struct pipe_screen
*screen
)
122 screen
->resource_create
= virgl_resource_create
;
123 screen
->resource_from_handle
= virgl_resource_from_handle
;
124 screen
->resource_get_handle
= u_resource_get_handle_vtbl
;
125 screen
->resource_destroy
= u_resource_destroy_vtbl
;
128 static void virgl_buffer_subdata(struct pipe_context
*pipe
,
129 struct pipe_resource
*resource
,
130 unsigned usage
, unsigned offset
,
131 unsigned size
, const void *data
)
135 if (offset
== 0 && size
== resource
->width0
)
136 usage
|= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
;
138 usage
|= PIPE_TRANSFER_DISCARD_RANGE
;
140 u_box_1d(offset
, size
, &box
);
142 if (size
>= (VIRGL_MAX_CMDBUF_DWORDS
* 4))
143 u_default_buffer_subdata(pipe
, resource
, usage
, offset
, size
, data
);
145 virgl_transfer_inline_write(pipe
, resource
, 0, usage
, &box
, data
, 0, 0);
148 void virgl_init_context_resource_functions(struct pipe_context
*ctx
)
150 ctx
->transfer_map
= u_transfer_map_vtbl
;
151 ctx
->transfer_flush_region
= u_transfer_flush_region_vtbl
;
152 ctx
->transfer_unmap
= u_transfer_unmap_vtbl
;
153 ctx
->buffer_subdata
= virgl_buffer_subdata
;
154 ctx
->texture_subdata
= u_default_texture_subdata
;
157 void virgl_resource_layout(struct pipe_resource
*pt
,
158 struct virgl_resource_metadata
*metadata
)
160 unsigned level
, nblocksy
;
161 unsigned width
= pt
->width0
;
162 unsigned height
= pt
->height0
;
163 unsigned depth
= pt
->depth0
;
164 unsigned buffer_size
= 0;
166 for (level
= 0; level
<= pt
->last_level
; level
++) {
169 if (pt
->target
== PIPE_TEXTURE_CUBE
)
171 else if (pt
->target
== PIPE_TEXTURE_3D
)
174 slices
= pt
->array_size
;
176 nblocksy
= util_format_get_nblocksy(pt
->format
, height
);
177 metadata
->stride
[level
] = util_format_get_stride(pt
->format
, width
);
178 metadata
->layer_stride
[level
] = nblocksy
* metadata
->stride
[level
];
179 metadata
->level_offset
[level
] = buffer_size
;
181 buffer_size
+= slices
* metadata
->layer_stride
[level
];
183 width
= u_minify(width
, 1);
184 height
= u_minify(height
, 1);
185 depth
= u_minify(depth
, 1);
188 if (pt
->nr_samples
<= 1)
189 metadata
->total_size
= buffer_size
;
190 else /* don't create guest backing store for MSAA */
191 metadata
->total_size
= 0;
194 struct virgl_transfer
*
195 virgl_resource_create_transfer(struct pipe_context
*ctx
,
196 struct pipe_resource
*pres
,
197 const struct virgl_resource_metadata
*metadata
,
198 unsigned level
, unsigned usage
,
199 const struct pipe_box
*box
)
201 struct virgl_transfer
*trans
;
202 enum pipe_format format
= pres
->format
;
203 struct virgl_context
*vctx
= virgl_context(ctx
);
204 const unsigned blocksy
= box
->y
/ util_format_get_blockheight(format
);
205 const unsigned blocksx
= box
->x
/ util_format_get_blockwidth(format
);
207 unsigned offset
= metadata
->level_offset
[level
];
208 if (pres
->target
== PIPE_TEXTURE_CUBE
||
209 pres
->target
== PIPE_TEXTURE_CUBE_ARRAY
||
210 pres
->target
== PIPE_TEXTURE_3D
||
211 pres
->target
== PIPE_TEXTURE_2D_ARRAY
) {
212 offset
+= box
->z
* metadata
->layer_stride
[level
];
214 else if (pres
->target
== PIPE_TEXTURE_1D_ARRAY
) {
215 offset
+= box
->z
* metadata
->stride
[level
];
217 } else if (pres
->target
== PIPE_BUFFER
) {
218 assert(box
->y
== 0 && box
->z
== 0);
223 offset
+= blocksy
* metadata
->stride
[level
];
224 offset
+= blocksx
* util_format_get_blocksize(format
);
226 trans
= slab_alloc(&vctx
->transfer_pool
);
230 trans
->base
.resource
= pres
;
231 trans
->base
.level
= level
;
232 trans
->base
.usage
= usage
;
233 trans
->base
.box
= *box
;
234 trans
->base
.stride
= metadata
->stride
[level
];
235 trans
->base
.layer_stride
= metadata
->layer_stride
[level
];
236 trans
->offset
= offset
;
237 util_range_init(&trans
->range
);
239 if (trans
->base
.resource
->target
!= PIPE_TEXTURE_3D
&&
240 trans
->base
.resource
->target
!= PIPE_TEXTURE_CUBE
&&
241 trans
->base
.resource
->target
!= PIPE_TEXTURE_1D_ARRAY
&&
242 trans
->base
.resource
->target
!= PIPE_TEXTURE_2D_ARRAY
&&
243 trans
->base
.resource
->target
!= PIPE_TEXTURE_CUBE_ARRAY
)
246 trans
->l_stride
= trans
->base
.layer_stride
;
251 void virgl_resource_destroy_transfer(struct virgl_context
*vctx
,
252 struct virgl_transfer
*trans
)
254 util_range_destroy(&trans
->range
);
255 slab_free(&vctx
->transfer_pool
, trans
);
258 void virgl_resource_destroy(struct pipe_screen
*screen
,
259 struct pipe_resource
*resource
)
261 struct virgl_screen
*vs
= virgl_screen(screen
);
262 struct virgl_resource
*res
= virgl_resource(resource
);
263 vs
->vws
->resource_unref(vs
->vws
, res
->hw_res
);
267 boolean
virgl_resource_get_handle(struct pipe_screen
*screen
,
268 struct pipe_resource
*resource
,
269 struct winsys_handle
*whandle
)
271 struct virgl_screen
*vs
= virgl_screen(screen
);
272 struct virgl_resource
*res
= virgl_resource(resource
);
274 if (res
->u
.b
.target
== PIPE_BUFFER
)
277 return vs
->vws
->resource_get_handle(vs
->vws
, res
->hw_res
,
278 res
->metadata
.stride
[0],