149 lines
4.5 KiB
C
149 lines
4.5 KiB
C
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/**************************************************************************
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*
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* Copyright 2009 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* @file
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llvmpipe: Add a bunch of comments.
Description/rationale/to-do items, while I still remember them...
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* Helper functions for swizzling/shuffling.
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*
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* @author Jose Fonseca <jfonseca@vmware.com>
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*/
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#ifndef LP_BLD_SWIZZLE_H
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#define LP_BLD_SWIZZLE_H
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#include "gallivm/lp_bld.h"
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struct lp_type;
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struct lp_build_context;
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#define LP_BLD_SWIZZLE_DONTCARE 0xFF
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LLVMValueRef
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lp_build_broadcast(struct gallivm_state *gallivm,
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LLVMTypeRef vec_type,
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LLVMValueRef scalar);
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LLVMValueRef
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lp_build_broadcast_scalar(struct lp_build_context *bld,
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LLVMValueRef scalar);
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LLVMValueRef
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lp_build_extract_broadcast(struct gallivm_state *gallivm,
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struct lp_type src_type,
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struct lp_type dst_type,
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LLVMValueRef vector,
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LLVMValueRef index);
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/**
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* Broadcast one channel of a vector composed of arrays of XYZ.. structures into
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* all channels XXX...
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*/
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LLVMValueRef
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lp_build_swizzle_scalar_aos(struct lp_build_context *bld,
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LLVMValueRef a,
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unsigned channel,
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unsigned num_channels);
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/**
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* Swizzle a vector consisting of an array of XYZW structs.
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*
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gallivm: Support extended swizzles in lp_build_swizzle1_aos().
And rename to lp_build_swizzle_aos().
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* @param swizzles is the in [0,4[ range.
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*/
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LLVMValueRef
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gallivm: Support extended swizzles in lp_build_swizzle1_aos().
And rename to lp_build_swizzle_aos().
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lp_build_swizzle_aos(struct lp_build_context *bld,
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LLVMValueRef a,
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const unsigned char swizzles[4]);
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LLVMValueRef
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lp_build_swizzle_aos_n(struct gallivm_state* gallivm,
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LLVMValueRef src,
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const unsigned char* swizzles,
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unsigned num_swizzles,
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unsigned dst_len);
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LLVMValueRef
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lp_build_swizzle_soa_channel(struct lp_build_context *bld,
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const LLVMValueRef *unswizzled,
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unsigned swizzle);
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void
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lp_build_swizzle_soa(struct lp_build_context *bld,
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const LLVMValueRef *unswizzled,
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const unsigned char swizzles[4],
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LLVMValueRef *swizzled);
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void
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lp_build_swizzle_soa_inplace(struct lp_build_context *bld,
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LLVMValueRef *values,
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const unsigned char swizzles[4]);
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void
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lp_build_transpose_aos(struct gallivm_state *gallivm,
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struct lp_type type,
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const LLVMValueRef src[4],
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LLVMValueRef dst[4]);
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void
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lp_build_transpose_aos_n(struct gallivm_state *gallivm,
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struct lp_type type,
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const LLVMValueRef* src,
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unsigned num_srcs,
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LLVMValueRef* dst);
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LLVMValueRef
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lp_build_pack_aos_scalars(struct gallivm_state *gallivm,
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struct lp_type src_type,
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struct lp_type dst_type,
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const LLVMValueRef src,
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unsigned channel);
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LLVMValueRef
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lp_build_unpack_broadcast_aos_scalars(struct gallivm_state *gallivm,
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struct lp_type src_type,
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struct lp_type dst_type,
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const LLVMValueRef src);
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#endif /* !LP_BLD_SWIZZLE_H */
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