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"
27 #include "virgl_context.h"
28 #include "virgl_resource.h"
29 #include "virgl_screen.h"
31 static void virgl_copy_region_with_blit(struct pipe_context
*pipe
,
32 struct pipe_resource
*dst
,
34 unsigned dstx
, unsigned dsty
, unsigned dstz
,
35 struct pipe_resource
*src
,
37 const struct pipe_box
*src_box
)
39 struct pipe_blit_info blit
;
41 memset(&blit
, 0, sizeof(blit
));
42 blit
.src
.resource
= src
;
43 blit
.src
.format
= src
->format
;
44 blit
.src
.level
= src_level
;
45 blit
.src
.box
= *src_box
;
46 blit
.dst
.resource
= dst
;
47 blit
.dst
.format
= dst
->format
;
48 blit
.dst
.level
= dst_level
;
49 blit
.dst
.box
.x
= dstx
;
50 blit
.dst
.box
.y
= dsty
;
51 blit
.dst
.box
.z
= dstz
;
52 blit
.dst
.box
.width
= src_box
->width
;
53 blit
.dst
.box
.height
= src_box
->height
;
54 blit
.dst
.box
.depth
= src_box
->depth
;
55 blit
.mask
= util_format_get_mask(src
->format
) &
56 util_format_get_mask(dst
->format
);
57 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
60 pipe
->blit(pipe
, &blit
);
63 static void virgl_init_temp_resource_from_box(struct pipe_resource
*res
,
64 struct pipe_resource
*orig
,
65 const struct pipe_box
*box
,
66 unsigned level
, unsigned flags
)
68 memset(res
, 0, sizeof(*res
));
69 res
->format
= orig
->format
;
70 res
->width0
= box
->width
;
71 res
->height0
= box
->height
;
74 res
->usage
= PIPE_USAGE_STAGING
;
77 /* We must set the correct texture target and dimensions for a 3D box. */
78 if (box
->depth
> 1 && util_max_layer(orig
, level
) > 0)
79 res
->target
= orig
->target
;
81 res
->target
= PIPE_TEXTURE_2D
;
83 switch (res
->target
) {
84 case PIPE_TEXTURE_1D_ARRAY
:
85 case PIPE_TEXTURE_2D_ARRAY
:
86 case PIPE_TEXTURE_CUBE_ARRAY
:
87 res
->array_size
= box
->depth
;
90 res
->depth0
= box
->depth
;
97 static void *virgl_texture_transfer_map(struct pipe_context
*ctx
,
98 struct pipe_resource
*resource
,
101 const struct pipe_box
*box
,
102 struct pipe_transfer
**transfer
)
104 struct virgl_context
*vctx
= virgl_context(ctx
);
105 struct virgl_screen
*vs
= virgl_screen(ctx
->screen
);
106 struct virgl_resource
*vtex
= virgl_resource(resource
);
107 struct virgl_transfer
*trans
;
109 boolean readback
= TRUE
;
110 struct virgl_hw_res
*hw_res
;
113 doflushwait
= virgl_res_needs_flush_wait(vctx
, vtex
, usage
);
115 ctx
->flush(ctx
, NULL
, 0);
117 trans
= virgl_resource_create_transfer(ctx
, resource
, &vtex
->metadata
,
120 if (resource
->nr_samples
> 1) {
121 struct pipe_resource tmp_resource
;
122 virgl_init_temp_resource_from_box(&tmp_resource
, resource
, box
,
125 trans
->resolve_tmp
= (struct virgl_resource
*)ctx
->screen
->resource_create(ctx
->screen
, &tmp_resource
);
127 virgl_copy_region_with_blit(ctx
, &trans
->resolve_tmp
->u
.b
, 0, 0, 0, 0, resource
, level
, box
);
128 ctx
->flush(ctx
, NULL
, 0);
129 /* we want to do a resolve blit into the temporary */
130 hw_res
= trans
->resolve_tmp
->hw_res
;
131 struct virgl_resource_metadata
*data
= &trans
->resolve_tmp
->metadata
;
132 trans
->base
.stride
= data
->stride
[level
];
133 trans
->base
.layer_stride
= data
->layer_stride
[level
];
136 hw_res
= vtex
->hw_res
;
137 trans
->resolve_tmp
= NULL
;
140 readback
= virgl_res_needs_readback(vctx
, vtex
, usage
, level
);
142 vs
->vws
->transfer_get(vs
->vws
, hw_res
, box
, trans
->base
.stride
,
143 trans
->l_stride
, trans
->offset
, level
);
145 if (doflushwait
|| readback
)
146 vs
->vws
->resource_wait(vs
->vws
, vtex
->hw_res
);
148 ptr
= vs
->vws
->resource_map(vs
->vws
, hw_res
);
150 slab_free(&vctx
->transfer_pool
, trans
);
154 *transfer
= &trans
->base
;
155 return ptr
+ trans
->offset
;
158 static void virgl_texture_transfer_unmap(struct pipe_context
*ctx
,
159 struct pipe_transfer
*transfer
)
161 struct virgl_context
*vctx
= virgl_context(ctx
);
162 struct virgl_transfer
*trans
= virgl_transfer(transfer
);
163 struct virgl_resource
*vtex
= virgl_resource(transfer
->resource
);
165 if (trans
->base
.usage
& PIPE_TRANSFER_WRITE
) {
166 if (!(transfer
->usage
& PIPE_TRANSFER_FLUSH_EXPLICIT
)) {
167 struct virgl_screen
*vs
= virgl_screen(ctx
->screen
);
168 vctx
->num_transfers
++;
169 vs
->vws
->transfer_put(vs
->vws
, vtex
->hw_res
,
170 &transfer
->box
, trans
->base
.stride
,
171 trans
->l_stride
, trans
->offset
,
177 if (trans
->resolve_tmp
)
178 pipe_resource_reference((struct pipe_resource
**)&trans
->resolve_tmp
, NULL
);
180 virgl_resource_destroy_transfer(vctx
, trans
);
183 static const struct u_resource_vtbl virgl_texture_vtbl
=
185 virgl_resource_get_handle
, /* get_handle */
186 virgl_resource_destroy
, /* resource_destroy */
187 virgl_texture_transfer_map
, /* transfer_map */
188 NULL
, /* transfer_flush_region */
189 virgl_texture_transfer_unmap
, /* transfer_unmap */
192 void virgl_texture_init(struct virgl_resource
*res
)
194 res
->u
.vtbl
= &virgl_texture_vtbl
;