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3 * Copyright 2009 VMware, Inc.
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30 * Helper functions for swizzling/shuffling.
32 * @author Jose Fonseca <jfonseca@vmware.com>
36 #ifndef LP_BLD_SWIZZLE_H
37 #define LP_BLD_SWIZZLE_H
40 #include "gallivm/lp_bld.h"
44 struct lp_build_context
;
47 #define LP_BLD_SWIZZLE_DONTCARE 0xFF
51 lp_build_broadcast(struct gallivm_state
*gallivm
,
57 lp_build_broadcast_scalar(struct lp_build_context
*bld
,
62 lp_build_extract_broadcast(struct gallivm_state
*gallivm
,
63 struct lp_type src_type
,
64 struct lp_type dst_type
,
70 * Broadcast one channel of a vector composed of arrays of XYZ.. structures into
74 lp_build_swizzle_scalar_aos(struct lp_build_context
*bld
,
77 unsigned num_channels
);
81 * Swizzle a vector consisting of an array of XYZW structs.
83 * @param swizzles is the in [0,4[ range.
86 lp_build_swizzle_aos(struct lp_build_context
*bld
,
88 const unsigned char swizzles
[4]);
92 lp_build_swizzle_aos_n(struct gallivm_state
* gallivm
,
94 const unsigned char* swizzles
,
95 unsigned num_swizzles
,
100 lp_build_swizzle_soa_channel(struct lp_build_context
*bld
,
101 const LLVMValueRef
*unswizzled
,
106 lp_build_swizzle_soa(struct lp_build_context
*bld
,
107 const LLVMValueRef
*unswizzled
,
108 const unsigned char swizzles
[4],
109 LLVMValueRef
*swizzled
);
113 lp_build_swizzle_soa_inplace(struct lp_build_context
*bld
,
114 LLVMValueRef
*values
,
115 const unsigned char swizzles
[4]);
119 lp_build_transpose_aos(struct gallivm_state
*gallivm
,
121 const LLVMValueRef src
[4],
122 LLVMValueRef dst
[4]);
126 lp_build_transpose_aos_n(struct gallivm_state
*gallivm
,
128 const LLVMValueRef
* src
,
134 lp_build_pack_aos_scalars(struct gallivm_state
*gallivm
,
135 struct lp_type src_type
,
136 struct lp_type dst_type
,
137 const LLVMValueRef src
,
142 lp_build_unpack_broadcast_aos_scalars(struct gallivm_state
*gallivm
,
143 struct lp_type src_type
,
144 struct lp_type dst_type
,
145 const LLVMValueRef src
);
148 #endif /* !LP_BLD_SWIZZLE_H */