1 /*
2 * Copyright (C) 2012 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 * Jonathan Marek <jonathan@marek.ca>
26 */
27
28 #include "fd4_resource.h"
29
30 uint32_t
fd4_setup_slices(struct fd_resource * rsc)31 fd4_setup_slices(struct fd_resource *rsc)
32 {
33 struct pipe_resource *prsc = &rsc->b.b;
34 enum pipe_format format = prsc->format;
35 uint32_t level, size = 0;
36 uint32_t width = prsc->width0;
37 uint32_t height = prsc->height0;
38 uint32_t depth = prsc->depth0;
39 /* in layer_first layout, the level (slice) contains just one
40 * layer (since in fact the layer contains the slices)
41 */
42 uint32_t layers_in_level, alignment;
43
44 if (prsc->target == PIPE_TEXTURE_3D) {
45 rsc->layout.layer_first = false;
46 layers_in_level = prsc->array_size;
47 alignment = 4096;
48 } else {
49 rsc->layout.layer_first = true;
50 layers_in_level = 1;
51 alignment = 1;
52 }
53
54 /* 32 pixel alignment */
55 fdl_set_pitchalign(&rsc->layout, fdl_cpp_shift(&rsc->layout) + 5);
56
57 for (level = 0; level <= prsc->last_level; level++) {
58 struct fdl_slice *slice = fd_resource_slice(rsc, level);
59 uint32_t pitch = fdl_pitch(&rsc->layout, level);
60 uint32_t nblocksy = util_format_get_nblocksy(format, height);
61
62 slice->offset = size;
63
64 /* 3d textures can have different layer sizes for high levels, but the
65 * hw auto-sizer is buggy (or at least different than what this code
66 * does), so as soon as the layer size range gets into range, we stop
67 * reducing it.
68 */
69 if (prsc->target == PIPE_TEXTURE_3D &&
70 (level > 1 && fd_resource_slice(rsc, level - 1)->size0 <= 0xf000))
71 slice->size0 = fd_resource_slice(rsc, level - 1)->size0;
72 else
73 slice->size0 = align(nblocksy * pitch, alignment);
74
75 size += slice->size0 * depth * layers_in_level;
76
77 width = u_minify(width, 1);
78 height = u_minify(height, 1);
79 depth = u_minify(depth, 1);
80 }
81
82 return size;
83 }
84