1 /**************************************************************************
2  *
3  * Copyright 2009 VMware, Inc.
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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 struct lp_depth_state;
45 struct gallivm_state;
46 struct util_format_description;
47 struct lp_type;
48 struct lp_build_mask_context;
49 
50 
51 struct lp_type
52 lp_depth_type(const struct util_format_description *format_desc,
53               unsigned length);
54 
55 
56 void
57 lp_build_depth_stencil_test(struct gallivm_state *gallivm,
58                             const struct lp_depth_state *depth,
59                             const struct pipe_stencil_state stencil[2],
60                             struct lp_type z_src_type,
61                             const struct util_format_description *format_desc,
62                             struct lp_build_mask_context *mask,
63                             LLVMValueRef *cov_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                                       LLVMValueRef mask_value,
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