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  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. _cl_sampler::_cl_sampler(clover::context &ctx, bool norm_mode,
  29.                          cl_addressing_mode addr_mode,
  30.                          cl_filter_mode filter_mode) :
  31.    ctx(ctx), __norm_mode(norm_mode),
  32.    __addr_mode(addr_mode), __filter_mode(filter_mode) {
  33. }
  34.  
  35. bool
  36. _cl_sampler::norm_mode() {
  37.    return __norm_mode;
  38. }
  39.  
  40. cl_addressing_mode
  41. _cl_sampler::addr_mode() {
  42.    return __addr_mode;
  43. }
  44.  
  45. cl_filter_mode
  46. _cl_sampler::filter_mode() {
  47.    return __filter_mode;
  48. }
  49.  
  50. void *
  51. _cl_sampler::bind(clover::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. _cl_sampler::unbind(clover::command_queue &q, void *st) {
  72.    q.pipe->delete_sampler_state(q.pipe, st);
  73. }
  74.