lp_bld_conv.h revision 3469715a8a171512cf9b528702e70393f01c6041 
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
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26 **************************************************************************/
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
43struct lp_type;
44
45LLVMValueRef
46lp_build_half_to_float(struct gallivm_state *gallivm,
47                       struct lp_type src_type,
48                       LLVMValueRef src);
49
50LLVMValueRef
51lp_build_clamped_float_to_unsigned_norm(struct gallivm_state *gallivm,
52                                        struct lp_type src_type,
53                                        unsigned dst_width,
54                                        LLVMValueRef src);
55
56LLVMValueRef
57lp_build_unsigned_norm_to_float(struct gallivm_state *gallivm,
58                                unsigned src_width,
59                                struct lp_type dst_type,
60                                LLVMValueRef src);
61
62
63void
64lp_build_conv(struct gallivm_state *gallivm,
65              struct lp_type src_type,
66              struct lp_type dst_type,
67              const LLVMValueRef *srcs, unsigned num_srcs,
68              LLVMValueRef *dsts, unsigned num_dsts);
69
70void
71lp_build_conv_mask(struct gallivm_state *gallivm,
72                   struct lp_type src_type,
73                   struct lp_type dst_type,
74                   const LLVMValueRef *src, unsigned num_srcs,
75                   LLVMValueRef *dst, unsigned num_dsts);
76
77#endif /* !LP_BLD_CONV_H */
78