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