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_memory.h"
24 #include "util/u_format.h"
25 #include "virgl_screen.h"
26 #include "virgl_resource.h"
27 #include "virgl_context.h"
29 static void virgl_copy_region_with_blit(struct pipe_context
*pipe
,
30 struct pipe_resource
*dst
,
32 unsigned dstx
, unsigned dsty
, unsigned dstz
,
33 struct pipe_resource
*src
,
35 const struct pipe_box
*src_box
)
37 struct pipe_blit_info blit
;
39 memset(&blit
, 0, sizeof(blit
));
40 blit
.src
.resource
= src
;
41 blit
.src
.format
= src
->format
;
42 blit
.src
.level
= src_level
;
43 blit
.src
.box
= *src_box
;
44 blit
.dst
.resource
= dst
;
45 blit
.dst
.format
= dst
->format
;
46 blit
.dst
.level
= dst_level
;
47 blit
.dst
.box
.x
= dstx
;
48 blit
.dst
.box
.y
= dsty
;
49 blit
.dst
.box
.z
= dstz
;
50 blit
.dst
.box
.width
= src_box
->width
;
51 blit
.dst
.box
.height
= src_box
->height
;
52 blit
.dst
.box
.depth
= src_box
->depth
;
53 blit
.mask
= util_format_get_mask(src
->format
) &
54 util_format_get_mask(dst
->format
);
55 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
58 pipe
->blit(pipe
, &blit
);
61 static void virgl_init_temp_resource_from_box(struct pipe_resource
*res
,
62 struct pipe_resource
*orig
,
63 const struct pipe_box
*box
,
64 unsigned level
, unsigned flags
)
66 memset(res
, 0, sizeof(*res
));
67 res
->format
= orig
->format
;
68 res
->width0
= box
->width
;
69 res
->height0
= box
->height
;
72 res
->usage
= PIPE_USAGE_STAGING
;
75 /* We must set the correct texture target and dimensions for a 3D box. */
76 if (box
->depth
> 1 && util_max_layer(orig
, level
) > 0)
77 res
->target
= orig
->target
;
79 res
->target
= PIPE_TEXTURE_2D
;
81 switch (res
->target
) {
82 case PIPE_TEXTURE_1D_ARRAY
:
83 case PIPE_TEXTURE_2D_ARRAY
:
84 case PIPE_TEXTURE_CUBE_ARRAY
:
85 res
->array_size
= box
->depth
;
88 res
->depth0
= box
->depth
;
96 vrend_get_tex_image_offset(const struct virgl_texture
*res
,
97 unsigned level
, unsigned layer
)
99 const struct pipe_resource
*pres
= &res
->base
.u
.b
;
100 const unsigned hgt
= u_minify(pres
->height0
, level
);
101 const unsigned nblocksy
= util_format_get_nblocksy(pres
->format
, hgt
);
102 unsigned offset
= res
->level_offset
[level
];
104 if (pres
->target
== PIPE_TEXTURE_CUBE
||
105 pres
->target
== PIPE_TEXTURE_CUBE_ARRAY
||
106 pres
->target
== PIPE_TEXTURE_3D
||
107 pres
->target
== PIPE_TEXTURE_2D_ARRAY
) {
108 offset
+= layer
* nblocksy
* res
->stride
[level
];
110 else if (pres
->target
== PIPE_TEXTURE_1D_ARRAY
) {
111 offset
+= layer
* res
->stride
[level
];
120 static void *virgl_texture_transfer_map(struct pipe_context
*ctx
,
121 struct pipe_resource
*resource
,
124 const struct pipe_box
*box
,
125 struct pipe_transfer
**transfer
)
127 struct virgl_context
*vctx
= (struct virgl_context
*)ctx
;
128 struct virgl_screen
*vs
= virgl_screen(ctx
->screen
);
129 struct virgl_texture
*vtex
= (struct virgl_texture
*)resource
;
130 enum pipe_format format
= resource
->format
;
131 struct virgl_transfer
*trans
;
133 boolean readback
= TRUE
;
135 struct virgl_hw_res
*hw_res
;
136 const unsigned h
= u_minify(vtex
->base
.u
.b
.height0
, level
);
137 const unsigned nblocksy
= util_format_get_nblocksy(format
, h
);
138 bool is_depth
= util_format_has_depth(util_format_description(resource
->format
));
142 doflushwait
= virgl_res_needs_flush_wait(vctx
, &vtex
->base
, usage
);
144 ctx
->flush(ctx
, NULL
, 0);
146 trans
= util_slab_alloc(&vctx
->texture_transfer_pool
);
150 trans
->base
.resource
= resource
;
151 trans
->base
.level
= level
;
152 trans
->base
.usage
= usage
;
153 trans
->base
.box
= *box
;
154 trans
->base
.stride
= vtex
->stride
[level
];
155 trans
->base
.layer_stride
= trans
->base
.stride
* nblocksy
;
157 if (resource
->target
!= PIPE_TEXTURE_3D
&&
158 resource
->target
!= PIPE_TEXTURE_CUBE
&&
159 resource
->target
!= PIPE_TEXTURE_1D_ARRAY
&&
160 resource
->target
!= PIPE_TEXTURE_2D_ARRAY
&&
161 resource
->target
!= PIPE_TEXTURE_CUBE_ARRAY
)
164 l_stride
= trans
->base
.layer_stride
;
166 if (is_depth
&& resource
->nr_samples
> 1) {
167 struct pipe_resource tmp_resource
;
168 virgl_init_temp_resource_from_box(&tmp_resource
, resource
, box
,
171 trans
->resolve_tmp
= (struct virgl_resource
*)ctx
->screen
->resource_create(ctx
->screen
, &tmp_resource
);
173 virgl_copy_region_with_blit(ctx
, &trans
->resolve_tmp
->u
.b
, 0, 0, 0, 0, resource
, level
, box
);
174 ctx
->flush(ctx
, NULL
, 0);
175 /* we want to do a resolve blit into the temporary */
176 hw_res
= trans
->resolve_tmp
->hw_res
;
179 offset
= vrend_get_tex_image_offset(vtex
, level
, box
->z
);
181 offset
+= box
->y
/ util_format_get_blockheight(format
) * trans
->base
.stride
+
182 box
->x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
183 hw_res
= vtex
->base
.hw_res
;
184 trans
->resolve_tmp
= NULL
;
187 readback
= virgl_res_needs_readback(vctx
, &vtex
->base
, usage
);
189 vs
->vws
->transfer_get(vs
->vws
, hw_res
, box
, trans
->base
.stride
, l_stride
, offset
, level
);
191 if (doflushwait
|| readback
)
192 vs
->vws
->resource_wait(vs
->vws
, vtex
->base
.hw_res
);
194 ptr
= vs
->vws
->resource_map(vs
->vws
, hw_res
);
199 trans
->offset
= offset
;
200 *transfer
= &trans
->base
;
202 return ptr
+ trans
->offset
;
205 static void virgl_texture_transfer_unmap(struct pipe_context
*ctx
,
206 struct pipe_transfer
*transfer
)
208 struct virgl_context
*vctx
= (struct virgl_context
*)ctx
;
209 struct virgl_transfer
*trans
= (struct virgl_transfer
*)transfer
;
210 struct virgl_texture
*vtex
= (struct virgl_texture
*)transfer
->resource
;
213 if (transfer
->resource
->target
!= PIPE_TEXTURE_3D
&&
214 transfer
->resource
->target
!= PIPE_TEXTURE_CUBE
&&
215 transfer
->resource
->target
!= PIPE_TEXTURE_1D_ARRAY
&&
216 transfer
->resource
->target
!= PIPE_TEXTURE_2D_ARRAY
&&
217 transfer
->resource
->target
!= PIPE_TEXTURE_CUBE_ARRAY
)
220 l_stride
= trans
->base
.layer_stride
;
222 if (trans
->base
.usage
& PIPE_TRANSFER_WRITE
) {
223 if (!(transfer
->usage
& PIPE_TRANSFER_FLUSH_EXPLICIT
)) {
224 struct virgl_screen
*vs
= virgl_screen(ctx
->screen
);
225 vtex
->base
.clean
= FALSE
;
226 vctx
->num_transfers
++;
227 vs
->vws
->transfer_put(vs
->vws
, vtex
->base
.hw_res
,
228 &transfer
->box
, trans
->base
.stride
, l_stride
, trans
->offset
, transfer
->level
);
233 if (trans
->resolve_tmp
)
234 pipe_resource_reference((struct pipe_resource
**)&trans
->resolve_tmp
, NULL
);
236 util_slab_free(&vctx
->texture_transfer_pool
, trans
);
241 vrend_resource_layout(struct virgl_texture
*res
,
242 uint32_t *total_size
)
244 struct pipe_resource
*pt
= &res
->base
.u
.b
;
246 unsigned width
= pt
->width0
;
247 unsigned height
= pt
->height0
;
248 unsigned depth
= pt
->depth0
;
249 unsigned buffer_size
= 0;
251 for (level
= 0; level
<= pt
->last_level
; level
++) {
254 if (pt
->target
== PIPE_TEXTURE_CUBE
)
256 else if (pt
->target
== PIPE_TEXTURE_3D
)
259 slices
= pt
->array_size
;
261 res
->stride
[level
] = util_format_get_stride(pt
->format
, width
);
262 res
->level_offset
[level
] = buffer_size
;
264 buffer_size
+= (util_format_get_nblocksy(pt
->format
, height
) *
265 slices
* res
->stride
[level
]);
267 width
= u_minify(width
, 1);
268 height
= u_minify(height
, 1);
269 depth
= u_minify(depth
, 1);
272 if (pt
->nr_samples
<= 1)
273 *total_size
= buffer_size
;
274 else /* don't create guest backing store for MSAA */
279 static boolean
virgl_texture_get_handle(struct pipe_screen
*screen
,
280 struct pipe_resource
*ptex
,
281 struct winsys_handle
*whandle
)
283 struct virgl_screen
*vs
= virgl_screen(screen
);
284 struct virgl_texture
*vtex
= (struct virgl_texture
*)ptex
;
286 return vs
->vws
->resource_get_handle(vs
->vws
, vtex
->base
.hw_res
, vtex
->stride
[0], whandle
);
289 static void virgl_texture_destroy(struct pipe_screen
*screen
,
290 struct pipe_resource
*res
)
292 struct virgl_screen
*vs
= virgl_screen(screen
);
293 struct virgl_texture
*vtex
= (struct virgl_texture
*)res
;
294 vs
->vws
->resource_unref(vs
->vws
, vtex
->base
.hw_res
);
298 static const struct u_resource_vtbl virgl_texture_vtbl
=
300 virgl_texture_get_handle
, /* get_handle */
301 virgl_texture_destroy
, /* resource_destroy */
302 virgl_texture_transfer_map
, /* transfer_map */
303 NULL
, /* transfer_flush_region */
304 virgl_texture_transfer_unmap
, /* transfer_unmap */
305 NULL
/* transfer_inline_write */
308 struct pipe_resource
*
309 virgl_texture_from_handle(struct virgl_screen
*vs
,
310 const struct pipe_resource
*template,
311 struct winsys_handle
*whandle
)
313 struct virgl_texture
*tex
;
316 tex
= CALLOC_STRUCT(virgl_texture
);
317 tex
->base
.u
.b
= *template;
318 tex
->base
.u
.b
.screen
= &vs
->base
;
319 pipe_reference_init(&tex
->base
.u
.b
.reference
, 1);
320 tex
->base
.u
.vtbl
= &virgl_texture_vtbl
;
321 vrend_resource_layout(tex
, &size
);
323 tex
->base
.hw_res
= vs
->vws
->resource_create_from_handle(vs
->vws
, whandle
);
324 return &tex
->base
.u
.b
;
327 struct pipe_resource
*virgl_texture_create(struct virgl_screen
*vs
,
328 const struct pipe_resource
*template)
330 struct virgl_texture
*tex
;
334 tex
= CALLOC_STRUCT(virgl_texture
);
335 tex
->base
.clean
= TRUE
;
336 tex
->base
.u
.b
= *template;
337 tex
->base
.u
.b
.screen
= &vs
->base
;
338 pipe_reference_init(&tex
->base
.u
.b
.reference
, 1);
339 tex
->base
.u
.vtbl
= &virgl_texture_vtbl
;
340 vrend_resource_layout(tex
, &size
);
342 vbind
= pipe_to_virgl_bind(template->bind
);
343 tex
->base
.hw_res
= vs
->vws
->resource_create(vs
->vws
, template->target
, template->format
, vbind
, template->width0
, template->height0
, template->depth0
, template->array_size
, template->last_level
, template->nr_samples
, size
);
344 if (!tex
->base
.hw_res
) {
348 return &tex
->base
.u
.b
;