1 //
2 // Copyright 2012 Francisco Jerez
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 shall be included in
12 // all copies or substantial portions of the Software.
13 //
14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 // OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 // OTHER DEALINGS IN THE SOFTWARE.
21 //
22
23 #include "core/sampler.hpp"
24 #include "pipe/p_state.h"
25
26 using namespace clover;
27
sampler(clover::context & ctx,bool norm_mode,cl_addressing_mode addr_mode,cl_filter_mode filter_mode)28 sampler::sampler(clover::context &ctx, bool norm_mode,
29 cl_addressing_mode addr_mode,
30 cl_filter_mode filter_mode) :
31 context(ctx), _norm_mode(norm_mode),
32 _addr_mode(addr_mode), _filter_mode(filter_mode) {
33 }
34
35 bool
norm_mode()36 sampler::norm_mode() {
37 return _norm_mode;
38 }
39
40 cl_addressing_mode
addr_mode()41 sampler::addr_mode() {
42 return _addr_mode;
43 }
44
45 cl_filter_mode
filter_mode()46 sampler::filter_mode() {
47 return _filter_mode;
48 }
49
50 void *
bind(command_queue & q)51 sampler::bind(command_queue &q) {
52 struct pipe_sampler_state info {};
53
54 info.normalized_coords = norm_mode();
55
56 info.wrap_s = info.wrap_t = info.wrap_r =
57 (addr_mode() == CL_ADDRESS_CLAMP_TO_EDGE ? PIPE_TEX_WRAP_CLAMP_TO_EDGE :
58 addr_mode() == CL_ADDRESS_CLAMP ? PIPE_TEX_WRAP_CLAMP_TO_BORDER :
59 addr_mode() == CL_ADDRESS_REPEAT ? PIPE_TEX_WRAP_REPEAT :
60 addr_mode() == CL_ADDRESS_MIRRORED_REPEAT ? PIPE_TEX_WRAP_MIRROR_REPEAT :
61 PIPE_TEX_WRAP_CLAMP_TO_EDGE);
62
63 info.min_img_filter = info.mag_img_filter =
64 (filter_mode() == CL_FILTER_LINEAR ? PIPE_TEX_FILTER_LINEAR :
65 PIPE_TEX_FILTER_NEAREST);
66
67 return q.pipe->create_sampler_state(q.pipe, &info);
68 }
69
70 void
unbind(command_queue & q,void * st)71 sampler::unbind(command_queue &q, void *st) {
72 q.pipe->delete_sampler_state(q.pipe, st);
73 }
74