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
45struct pipe_depth_state;
46struct gallivm_state;
47struct util_format_description;
48struct lp_type;
49struct lp_build_mask_context;
50
51
52struct lp_type
53lp_depth_type(const struct util_format_description *format_desc,
54              unsigned length);
55
56
57void
58lp_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
73void
74lp_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
84void
85lp_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
99void
100lp_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