Merge branch 'mesa_7_6_branch'
[mesa.git] / src / gallium / drivers / llvmpipe / lp_bld_swizzle.h
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
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23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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26 **************************************************************************/
27
28 /**
29 * @file
30 * Helper functions for swizzling/shuffling.
31 *
32 * @author Jose Fonseca <jfonseca@vmware.com>
33 */
34
35
36 #ifndef LP_BLD_SWIZZLE_H
37 #define LP_BLD_SWIZZLE_H
38
39
40 #include <llvm-c/Core.h>
41
42
43 struct lp_type type;
44 struct lp_build_context;
45
46
47 LLVMValueRef
48 lp_build_broadcast(LLVMBuilderRef builder,
49 LLVMTypeRef vec_type,
50 LLVMValueRef scalar);
51
52
53 LLVMValueRef
54 lp_build_broadcast_scalar(struct lp_build_context *bld,
55 LLVMValueRef scalar);
56
57
58 /**
59 * Broadcast one channel of a vector composed of arrays of XYZW structures into
60 * all four channel.
61 */
62 LLVMValueRef
63 lp_build_broadcast_aos(struct lp_build_context *bld,
64 LLVMValueRef a,
65 unsigned channel);
66
67
68 /**
69 * Swizzle a vector consisting of an array of XYZW structs.
70 *
71 * @param swizzle is the in [0,4[ range.
72 */
73 LLVMValueRef
74 lp_build_swizzle1_aos(struct lp_build_context *bld,
75 LLVMValueRef a,
76 const unsigned char swizzle[4]);
77
78
79 /**
80 * Swizzle two vector consisting of an array of XYZW structs.
81 *
82 * @param swizzle is the in [0,8[ range. Values in [4,8[ range refer to b.
83 */
84 LLVMValueRef
85 lp_build_swizzle2_aos(struct lp_build_context *bld,
86 LLVMValueRef a,
87 LLVMValueRef b,
88 const unsigned char swizzle[4]);
89
90
91 #endif /* !LP_BLD_SWIZZLE_H */