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 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 36 sampler::norm_mode() { 37 return _norm_mode; 38 } 39 40 cl_addressing_mode 41 sampler::addr_mode() { 42 return _addr_mode; 43 } 44 45 cl_filter_mode 46 sampler::filter_mode() { 47 return _filter_mode; 48 } 49 50 void * 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 71 sampler::unbind(command_queue &q, void *st) { 72 q.pipe->delete_sampler_state(q.pipe, st); 73 } 74
