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4358 Serge 1
//
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// Copyright 2012 Francisco Jerez
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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//
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#include "core/sampler.hpp"
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#include "pipe/p_state.h"
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using namespace clover;
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_cl_sampler::_cl_sampler(clover::context &ctx, bool norm_mode,
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                         cl_addressing_mode addr_mode,
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                         cl_filter_mode filter_mode) :
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   ctx(ctx), __norm_mode(norm_mode),
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   __addr_mode(addr_mode), __filter_mode(filter_mode) {
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}
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bool
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_cl_sampler::norm_mode() {
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   return __norm_mode;
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}
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cl_addressing_mode
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_cl_sampler::addr_mode() {
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   return __addr_mode;
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}
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cl_filter_mode
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_cl_sampler::filter_mode() {
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   return __filter_mode;
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}
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void *
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_cl_sampler::bind(clover::command_queue &q) {
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   struct pipe_sampler_state info {};
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   info.normalized_coords = norm_mode();
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   info.wrap_s = info.wrap_t = info.wrap_r =
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      (addr_mode() == CL_ADDRESS_CLAMP_TO_EDGE ? PIPE_TEX_WRAP_CLAMP_TO_EDGE :
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       addr_mode() == CL_ADDRESS_CLAMP ? PIPE_TEX_WRAP_CLAMP_TO_BORDER :
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       addr_mode() == CL_ADDRESS_REPEAT ? PIPE_TEX_WRAP_REPEAT :
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       addr_mode() == CL_ADDRESS_MIRRORED_REPEAT ? PIPE_TEX_WRAP_MIRROR_REPEAT :
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       PIPE_TEX_WRAP_CLAMP_TO_EDGE);
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   info.min_img_filter = info.mag_img_filter =
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      (filter_mode() == CL_FILTER_LINEAR ? PIPE_TEX_FILTER_LINEAR :
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       PIPE_TEX_FILTER_NEAREST);
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   return q.pipe->create_sampler_state(q.pipe, &info);
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}
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void
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_cl_sampler::unbind(clover::command_queue &q, void *st) {
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   q.pipe->delete_sampler_state(q.pipe, st);
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}