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 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 "gallivm/lp_bld.h" 41 42 43 struct lp_type; 44 struct lp_build_context; 45 46 47 #define LP_BLD_SWIZZLE_DONTCARE 0xFF 48 49 50 LLVMValueRef 51 lp_build_broadcast(struct gallivm_state *gallivm, 52 LLVMTypeRef vec_type, 53 LLVMValueRef scalar); 54 55 56 LLVMValueRef 57 lp_build_broadcast_scalar(struct lp_build_context *bld, 58 LLVMValueRef scalar); 59 60 61 LLVMValueRef 62 lp_build_extract_broadcast(struct gallivm_state *gallivm, 63 struct lp_type src_type, 64 struct lp_type dst_type, 65 LLVMValueRef vector, 66 LLVMValueRef index); 67 68 69 /** 70 * Broadcast one channel of a vector composed of arrays of XYZ.. structures into 71 * all channels XXX... 72 */ 73 LLVMValueRef 74 lp_build_swizzle_scalar_aos(struct lp_build_context *bld, 75 LLVMValueRef a, 76 unsigned channel, 77 unsigned num_channels); 78 79 80 /** 81 * Swizzle a vector consisting of an array of XYZW structs. 82 * 83 * @param swizzles is the in [0,4[ range. 84 */ 85 LLVMValueRef 86 lp_build_swizzle_aos(struct lp_build_context *bld, 87 LLVMValueRef a, 88 const unsigned char swizzles[4]); 89 90 91 LLVMValueRef 92 lp_build_swizzle_aos_n(struct gallivm_state* gallivm, 93 LLVMValueRef src, 94 const unsigned char* swizzles, 95 unsigned num_swizzles, 96 unsigned dst_len); 97 98 99 LLVMValueRef 100 lp_build_swizzle_soa_channel(struct lp_build_context *bld, 101 const LLVMValueRef *unswizzled, 102 unsigned swizzle); 103 104 105 void 106 lp_build_swizzle_soa(struct lp_build_context *bld, 107 const LLVMValueRef *unswizzled, 108 const unsigned char swizzles[4], 109 LLVMValueRef *swizzled); 110 111 112 void 113 lp_build_swizzle_soa_inplace(struct lp_build_context *bld, 114 LLVMValueRef *values, 115 const unsigned char swizzles[4]); 116 117 118 void 119 lp_build_transpose_aos(struct gallivm_state *gallivm, 120 struct lp_type type, 121 const LLVMValueRef src[4], 122 LLVMValueRef dst[4]); 123 124 125 void 126 lp_build_transpose_aos_n(struct gallivm_state *gallivm, 127 struct lp_type type, 128 const LLVMValueRef* src, 129 unsigned num_srcs, 130 LLVMValueRef* dst); 131 132 133 LLVMValueRef 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, 138 unsigned channel); 139 140 141 LLVMValueRef 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); 146 147 148 #endif /* !LP_BLD_SWIZZLE_H */ 149