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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2009 VMware, Inc.
  4.  * All Rights Reserved.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the
  8.  * "Software"), to deal in the Software without restriction, including
  9.  * without limitation the rights to use, copy, modify, merge, publish,
  10.  * distribute, sub license, and/or sell copies of the Software, and to
  11.  * permit persons to whom the Software is furnished to do so, subject to
  12.  * the following conditions:
  13.  *
  14.  * The above copyright notice and this permission notice (including the
  15.  * next paragraph) shall be included in all copies or substantial portions
  16.  * of the Software.
  17.  *
  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21.  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25.  *
  26.  **************************************************************************/
  27.  
  28. /**
  29.  * Alpha testing to LLVM IR translation.
  30.  *
  31.  * @author Jose Fonseca <jfonseca@vmware.com>
  32.  */
  33.  
  34. #ifndef LP_BLD_ALPHA_H
  35. #define LP_BLD_ALPHA_H
  36.  
  37. #include "pipe/p_compiler.h"
  38.  
  39. #include "gallivm/lp_bld.h"
  40.  
  41. struct pipe_alpha_state;
  42. struct util_format_description;
  43. struct gallivm_state;
  44. struct lp_type;
  45. struct lp_build_mask_context;
  46.  
  47.  
  48. void
  49. lp_build_alpha_test(struct gallivm_state *gallivm,
  50.                     unsigned func,
  51.                     struct lp_type type,
  52.                     const struct util_format_description *cbuf_format_desc,
  53.                     struct lp_build_mask_context *mask,
  54.                     LLVMValueRef alpha,
  55.                     LLVMValueRef ref,
  56.                     boolean do_branch);
  57.  
  58.  
  59. #endif /* !LP_BLD_ALPHA_H */
  60.