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  * @file
30  * Helper functions for packing/unpacking conversions.
31  *
32  * @author Jose Fonseca <jfonseca@vmware.com>
33  */
34 
35 
36 #ifndef LP_BLD_PACK_H
37 #define LP_BLD_PACK_H
38 
39 
40 #include "pipe/p_compiler.h"
41 
42 #include "gallivm/lp_bld.h"
43 
44 
45 struct lp_type;
46 
47 LLVMValueRef
48 lp_build_interleave2_half(struct gallivm_state *gallivm,
49                      struct lp_type type,
50                      LLVMValueRef a,
51                      LLVMValueRef b,
52                      unsigned lo_hi);
53 
54 LLVMValueRef
55 lp_build_interleave2(struct gallivm_state *gallivm,
56                      struct lp_type type,
57                      LLVMValueRef a,
58                      LLVMValueRef b,
59                      unsigned lo_hi);
60 
61 
62 void
63 lp_build_unpack2(struct gallivm_state *gallivm,
64                  struct lp_type src_type,
65                  struct lp_type dst_type,
66                  LLVMValueRef src,
67                  LLVMValueRef *dst_lo,
68                  LLVMValueRef *dst_hi);
69 
70 
71 void
72 lp_build_unpack(struct gallivm_state *gallivm,
73                 struct lp_type src_type,
74                 struct lp_type dst_type,
75                 LLVMValueRef src,
76                 LLVMValueRef *dst, unsigned num_dsts);
77 
78 LLVMValueRef
79 lp_build_extract_range(struct gallivm_state *gallivm,
80                        LLVMValueRef src,
81                        unsigned start,
82                        unsigned size);
83 
84 LLVMValueRef
85 lp_build_concat(struct gallivm_state *gallivm,
86                 LLVMValueRef src[],
87                 struct lp_type src_type,
88                 unsigned num_vectors);
89 
90 LLVMValueRef
91 lp_build_packs2(struct gallivm_state *gallivm,
92                 struct lp_type src_type,
93                 struct lp_type dst_type,
94                 LLVMValueRef lo,
95                 LLVMValueRef hi);
96 
97 
98 LLVMValueRef
99 lp_build_pack2(struct gallivm_state *gallivm,
100                struct lp_type src_type,
101                struct lp_type dst_type,
102                LLVMValueRef lo,
103                LLVMValueRef hi);
104 
105 
106 LLVMValueRef
107 lp_build_pack(struct gallivm_state *gallivm,
108               struct lp_type src_type,
109               struct lp_type dst_type,
110               boolean clamped,
111               const LLVMValueRef *src, unsigned num_srcs);
112 
113 
114 void
115 lp_build_resize(struct gallivm_state *gallivm,
116                 struct lp_type src_type,
117                 struct lp_type dst_type,
118                 const LLVMValueRef *src, unsigned num_srcs,
119                 LLVMValueRef *dst, unsigned num_dsts);
120 
121 
122 LLVMValueRef
123 lp_build_pad_vector(struct gallivm_state *gallivm,
124                     LLVMValueRef src,
125                     struct lp_type src_type,
126                     unsigned dst_length);
127 
128 #endif /* !LP_BLD_PACK_H */
129