1 /**************************************************************************
2  *
3  * Copyright 2009 VMware, Inc.
4  * All Rights Reserved.
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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,
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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
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27 
28 /**
29  * @file
30  * Helper functions for type conversions.
31  *
32  * @author Jose Fonseca <jfonseca@vmware.com>
33  */
34 
35 
36 #ifndef LP_BLD_CONV_H
37 #define LP_BLD_CONV_H
38 
39 
40 #include "gallivm/lp_bld.h"
41 
42 
43 struct lp_type;
44 
45 LLVMValueRef
46 lp_build_half_to_float(struct gallivm_state *gallivm,
47                        LLVMValueRef src);
48 
49 LLVMValueRef
50 lp_build_float_to_half(struct gallivm_state *gallivm,
51                        LLVMValueRef src);
52 
53 LLVMValueRef
54 lp_build_clamped_float_to_unsigned_norm(struct gallivm_state *gallivm,
55                                         struct lp_type src_type,
56                                         unsigned dst_width,
57                                         LLVMValueRef src);
58 
59 LLVMValueRef
60 lp_build_unsigned_norm_to_float(struct gallivm_state *gallivm,
61                                 unsigned src_width,
62                                 struct lp_type dst_type,
63                                 LLVMValueRef src);
64 
65 
66 void
67 lp_build_conv(struct gallivm_state *gallivm,
68               struct lp_type src_type,
69               struct lp_type dst_type,
70               const LLVMValueRef *srcs, unsigned num_srcs,
71               LLVMValueRef *dsts, unsigned num_dsts);
72 
73 
74 int
75 lp_build_conv_auto(struct gallivm_state *gallivm,
76                    struct lp_type src_type,
77                    struct lp_type* dst_type,
78                    const LLVMValueRef *src,
79                    unsigned num_srcs,
80                    LLVMValueRef *dst);
81 
82 
83 void
84 lp_build_conv_mask(struct gallivm_state *gallivm,
85                    struct lp_type src_type,
86                    struct lp_type dst_type,
87                    const LLVMValueRef *src, unsigned num_srcs,
88                    LLVMValueRef *dst, unsigned num_dsts);
89 
90 #endif /* !LP_BLD_CONV_H */
91