1 /**************************************************************************
2  *
3  * Copyright 2009 VMware, Inc.
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8  * "Software"), to deal in the Software without restriction, including
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11  * permit persons to whom the Software is furnished to do so, subject to
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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 type,
62                             const struct util_format_description *format_desc,
63                             struct lp_build_mask_context *mask,
64                             LLVMValueRef stencil_refs[2],
65                             LLVMValueRef zs_src,
66                             LLVMValueRef zs_dst_ptr,
67                             LLVMValueRef facing,
68                             LLVMValueRef *zs_value,
69                             boolean do_branch);
70 
71 void
72 lp_build_depth_write(LLVMBuilderRef builder,
73                      const struct util_format_description *format_desc,
74                      LLVMValueRef zs_dst_ptr,
75                      LLVMValueRef zs_value);
76 
77 void
78 lp_build_deferred_depth_write(struct gallivm_state *gallivm,
79                               struct lp_type z_src_type,
80                               const struct util_format_description *format_desc,
81                               struct lp_build_mask_context *mask,
82                               LLVMValueRef zs_dst_ptr,
83                               LLVMValueRef zs_value);
84 
85 void
86 lp_build_occlusion_count(struct gallivm_state *gallivm,
87                          struct lp_type type,
88                          LLVMValueRef maskvalue,
89                          LLVMValueRef counter);
90 
91 #endif /* !LP_BLD_DEPTH_H */
92