2 * Mesa 3-D graphics library
4 * Copyright (C) 2012-2013 LunarG, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
25 * Chia-I Wu <olv@lunarg.com>
31 #include "ilo_common.h"
32 #include "ilo_context.h"
34 #include "ilo_resource.h"
39 ilo_blit_resolve_slices_for_hiz(struct ilo_context
*ilo
,
40 struct pipe_resource
*res
, unsigned level
,
41 unsigned first_slice
, unsigned num_slices
,
45 ilo_blit_resolve_slices(struct ilo_context
*ilo
,
46 struct pipe_resource
*res
, unsigned level
,
47 unsigned first_slice
, unsigned num_slices
,
50 struct ilo_texture
*tex
;
53 if (res
->target
== PIPE_BUFFER
)
56 tex
= ilo_texture(res
);
59 * This function is called frequently and we need to make it run faster.
60 * As it is only used to resolve HiZ right now, return early when there is
63 if (!ilo_texture_can_enable_hiz(tex
, level
, first_slice
, num_slices
))
69 * - ILO_TEXTURE_CPU_{READ,WRITE} (transfer)
70 * - ILO_TEXTURE_BLT_{READ,WRITE} (BLT copy or clear)
71 * - ILO_TEXTURE_RENDER_{READ,WRITE} (sample or render)
74 * It is assumed there is at most one writer, and that readers read before
77 if (ilo_texture_can_enable_hiz(tex
, level
, first_slice
, num_slices
)) {
78 ilo_blit_resolve_slices_for_hiz(ilo
, res
, level
,
79 first_slice
, num_slices
, flags
);
82 /* clear writers and clear state that are not set */
84 ILO_TEXTURE_CPU_WRITE
|
85 ILO_TEXTURE_BLT_WRITE
|
86 ILO_TEXTURE_RENDER_WRITE
;
87 if (flags
& flag_mask
)
88 flag_mask
|= ILO_TEXTURE_CLEAR
;
90 ilo_texture_set_slice_flags(tex
, level
,
91 first_slice
, num_slices
, flag_mask
, flags
);
95 ilo_blit_resolve_resource(struct ilo_context
*ilo
,
96 struct pipe_resource
*res
,
101 for (lv
= 0; lv
<= res
->last_level
; lv
++) {
102 const unsigned num_slices
= (res
->target
== PIPE_TEXTURE_3D
) ?
103 u_minify(res
->depth0
, lv
) : res
->array_size
;
105 ilo_blit_resolve_slices(ilo
, res
, lv
, 0, num_slices
, flags
);
110 ilo_blit_resolve_surface(struct ilo_context
*ilo
,
111 struct pipe_surface
*surf
,
114 if (surf
->texture
->target
== PIPE_BUFFER
)
117 ilo_blit_resolve_slices(ilo
, surf
->texture
,
118 surf
->u
.tex
.level
, surf
->u
.tex
.first_layer
,
119 surf
->u
.tex
.last_layer
- surf
->u
.tex
.first_layer
+ 1,
124 ilo_blit_resolve_transfer(struct ilo_context
*ilo
,
125 const struct pipe_transfer
*xfer
)
129 if (xfer
->resource
->target
== PIPE_BUFFER
)
132 if (xfer
->usage
& PIPE_TRANSFER_READ
)
133 flags
|= ILO_TEXTURE_CPU_READ
;
134 if (xfer
->usage
& PIPE_TRANSFER_WRITE
)
135 flags
|= ILO_TEXTURE_CPU_WRITE
;
137 ilo_blit_resolve_slices(ilo
, xfer
->resource
, xfer
->level
,
138 xfer
->box
.z
, xfer
->box
.depth
, flags
);
142 ilo_blit_resolve_view(struct ilo_context
*ilo
,
143 const struct pipe_sampler_view
*view
)
145 const unsigned flags
= ILO_TEXTURE_RENDER_READ
;
148 if (view
->texture
->target
== PIPE_BUFFER
)
151 for (lv
= view
->u
.tex
.first_level
; lv
<= view
->u
.tex
.last_level
; lv
++) {
152 unsigned first_slice
, num_slices
;
154 if (view
->texture
->target
== PIPE_TEXTURE_3D
) {
156 num_slices
= u_minify(view
->texture
->depth0
, lv
);
159 first_slice
= view
->u
.tex
.first_layer
;
160 num_slices
= view
->u
.tex
.last_layer
- view
->u
.tex
.first_layer
+ 1;
163 ilo_blit_resolve_slices(ilo
, view
->texture
,
164 lv
, first_slice
, num_slices
, flags
);
169 ilo_blit_resolve_framebuffer(struct ilo_context
*ilo
)
171 const struct pipe_framebuffer_state
*fb
= &ilo
->fb
.state
;
174 /* Not all bound views are sampled by the shaders. How do we tell? */
175 for (sh
= 0; sh
< Elements(ilo
->view
); sh
++) {
176 for (i
= 0; i
< ilo
->view
[sh
].count
; i
++) {
177 if (ilo
->view
[sh
].states
[i
])
178 ilo_blit_resolve_view(ilo
, ilo
->view
[sh
].states
[i
]);
182 for (i
= 0; i
< fb
->nr_cbufs
; i
++)
183 ilo_blit_resolve_surface(ilo
, fb
->cbufs
[i
], ILO_TEXTURE_RENDER_WRITE
);
186 ilo_blit_resolve_surface(ilo
, fb
->zsbuf
, ILO_TEXTURE_RENDER_WRITE
);
190 ilo_init_blit_functions(struct ilo_context
*ilo
);
192 #endif /* ILO_BLIT_H */