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 <[email protected]> 33 */ 34 35 36 #ifndef LP_BLD_SWIZZLE_H 37 #define LP_BLD_SWIZZLE_H 38 39 40 #include "gallivm/lp_bld.h" 41 #include "pipe/p_defines.h" 42 #include "util/format/u_formats.h" 43 44 45 struct lp_type; 46 struct lp_build_context; 47 48 49 #define LP_BLD_SWIZZLE_DONTCARE 0xFF 50 51 52 LLVMValueRef 53 lp_build_broadcast(struct gallivm_state *gallivm, 54 LLVMTypeRef vec_type, 55 LLVMValueRef scalar); 56 57 58 LLVMValueRef 59 lp_build_broadcast_scalar(struct lp_build_context *bld, 60 LLVMValueRef scalar); 61 62 63 LLVMValueRef 64 lp_build_extract_broadcast(struct gallivm_state *gallivm, 65 struct lp_type src_type, 66 struct lp_type dst_type, 67 LLVMValueRef vector, 68 LLVMValueRef index); 69 70 71 /** 72 * Broadcast one channel of a vector composed of arrays of XYZ.. structures into 73 * all channels XXX... 74 */ 75 LLVMValueRef 76 lp_build_swizzle_scalar_aos(struct lp_build_context *bld, 77 LLVMValueRef a, 78 unsigned channel, 79 unsigned num_channels); 80 81 82 /** 83 * Swizzle a vector consisting of an array of XYZW structs. 84 * 85 * @param swizzles is the in [0,4[ range. 86 */ 87 LLVMValueRef 88 lp_build_swizzle_aos(struct lp_build_context *bld, 89 LLVMValueRef a, 90 const unsigned char swizzles[4]); 91 92 93 LLVMValueRef 94 lp_build_swizzle_aos_n(struct gallivm_state* gallivm, 95 LLVMValueRef src, 96 const unsigned char* swizzles, 97 unsigned num_swizzles, 98 unsigned dst_len); 99 100 101 LLVMValueRef 102 lp_build_swizzle_soa_channel(struct lp_build_context *bld, 103 const LLVMValueRef *unswizzled, 104 enum pipe_swizzle swizzle); 105 106 107 void 108 lp_build_swizzle_soa(struct lp_build_context *bld, 109 const LLVMValueRef *unswizzled, 110 const unsigned char swizzles[4], 111 LLVMValueRef *swizzled); 112 113 114 void 115 lp_build_swizzle_soa_inplace(struct lp_build_context *bld, 116 LLVMValueRef *values, 117 const unsigned char swizzles[4]); 118 119 120 void 121 lp_build_transpose_aos(struct gallivm_state *gallivm, 122 struct lp_type type, 123 const LLVMValueRef src[4], 124 LLVMValueRef dst[4]); 125 126 127 void 128 lp_build_transpose_aos_n(struct gallivm_state *gallivm, 129 struct lp_type type, 130 const LLVMValueRef* src, 131 unsigned num_srcs, 132 LLVMValueRef* dst); 133 134 135 LLVMValueRef 136 lp_build_pack_aos_scalars(struct gallivm_state *gallivm, 137 struct lp_type src_type, 138 struct lp_type dst_type, 139 const LLVMValueRef src, 140 unsigned channel); 141 142 143 LLVMValueRef 144 lp_build_unpack_broadcast_aos_scalars(struct gallivm_state *gallivm, 145 struct lp_type src_type, 146 struct lp_type dst_type, 147 const LLVMValueRef src); 148 149 150 #endif /* !LP_BLD_SWIZZLE_H */ 151