1 /*
2 * Copyright (C) 2018 Rob Clark <robclark@freedesktop.org>
3 *
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
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
13 * Software.
14 *
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 NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 * Rob Clark <robclark@freedesktop.org>
25 */
26
27 #include "fd5_resource.h"
28
29 static void
setup_lrz(struct fd_resource * rsc)30 setup_lrz(struct fd_resource *rsc)
31 {
32 struct fd_screen *screen = fd_screen(rsc->b.b.screen);
33 unsigned lrz_pitch = align(DIV_ROUND_UP(rsc->b.b.width0, 8), 64);
34 unsigned lrz_height = DIV_ROUND_UP(rsc->b.b.height0, 8);
35
36 /* LRZ buffer is super-sampled: */
37 switch (rsc->b.b.nr_samples) {
38 case 4:
39 lrz_pitch *= 2;
40 FALLTHROUGH;
41 case 2:
42 lrz_height *= 2;
43 }
44
45 unsigned size = lrz_pitch * lrz_height * 2;
46
47 size += 0x1000; /* for GRAS_LRZ_FAST_CLEAR_BUFFER */
48
49 rsc->lrz_height = lrz_height;
50 rsc->lrz_width = lrz_pitch;
51 rsc->lrz_pitch = lrz_pitch;
52 rsc->lrz = fd_bo_new(screen->dev, size, 0, "lrz");
53 }
54
55 uint32_t
fd5_setup_slices(struct fd_resource * rsc)56 fd5_setup_slices(struct fd_resource *rsc)
57 {
58 struct pipe_resource *prsc = &rsc->b.b;
59
60 if (FD_DBG(LRZ) && has_depth(rsc->b.b.format))
61 setup_lrz(rsc);
62
63 fdl5_layout(&rsc->layout, prsc->format, fd_resource_nr_samples(prsc),
64 prsc->width0, prsc->height0, prsc->depth0, prsc->last_level + 1,
65 prsc->array_size, prsc->target == PIPE_TEXTURE_3D);
66
67 return rsc->layout.size;
68 }
69