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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. /**
  30.  * Depth/stencil testing to LLVM IR translation.
  31.  *
  32.  * @author Jose Fonseca <jfonseca@vmware.com>
  33.  */
  34.  
  35. #ifndef LP_BLD_DEPTH_H
  36. #define LP_BLD_DEPTH_H
  37.  
  38.  
  39. #include "pipe/p_compiler.h"
  40. #include "pipe/p_state.h"
  41.  
  42. #include "gallivm/lp_bld.h"
  43.  
  44.  
  45. struct pipe_depth_state;
  46. struct gallivm_state;
  47. struct util_format_description;
  48. struct lp_type;
  49. struct lp_build_mask_context;
  50.  
  51.  
  52. struct lp_type
  53. lp_depth_type(const struct util_format_description *format_desc,
  54.               unsigned length);
  55.  
  56.  
  57. void
  58. lp_build_depth_stencil_test(struct gallivm_state *gallivm,
  59.                             const struct pipe_depth_state *depth,
  60.                             const struct pipe_stencil_state stencil[2],
  61.                             struct lp_type z_src_type,
  62.                             const struct util_format_description *format_desc,
  63.                             struct lp_build_mask_context *mask,
  64.                             LLVMValueRef stencil_refs[2],
  65.                             LLVMValueRef z_src,
  66.                             LLVMValueRef z_fb,
  67.                             LLVMValueRef s_fb,
  68.                             LLVMValueRef face,
  69.                             LLVMValueRef *z_value,
  70.                             LLVMValueRef *s_value,
  71.                             boolean do_branch);
  72.  
  73. void
  74. lp_build_depth_stencil_load_swizzled(struct gallivm_state *gallivm,
  75.                                      struct lp_type z_src_type,
  76.                                      const struct util_format_description *format_desc,
  77.                                      boolean is_1d,
  78.                                      LLVMValueRef depth_ptr,
  79.                                      LLVMValueRef depth_stride,
  80.                                      LLVMValueRef *z_fb,
  81.                                      LLVMValueRef *s_fb,
  82.                                      LLVMValueRef loop_counter);
  83.  
  84. void
  85. lp_build_depth_stencil_write_swizzled(struct gallivm_state *gallivm,
  86.                                       struct lp_type z_src_type,
  87.                                       const struct util_format_description *format_desc,
  88.                                       boolean is_1d,
  89.                                       struct lp_build_mask_context *mask,
  90.                                       LLVMValueRef z_fb,
  91.                                       LLVMValueRef s_fb,
  92.                                       LLVMValueRef loop_counter,
  93.                                       LLVMValueRef depth_ptr,
  94.                                       LLVMValueRef depth_stride,
  95.                                       LLVMValueRef z_value,
  96.                                       LLVMValueRef s_value);
  97.  
  98.  
  99. void
  100. lp_build_occlusion_count(struct gallivm_state *gallivm,
  101.                          struct lp_type type,
  102.                          LLVMValueRef maskvalue,
  103.                          LLVMValueRef counter);
  104.  
  105. #endif /* !LP_BLD_DEPTH_H */
  106.