Hans Goudey
a803dbe7ed
Attribute copying often uses identical logic for copying selected elements or copying with an index map. Instead of reimplementing this in each file, use the common implementation in the array_utils namespace. This makes the commonality more obvious, gives improved performance (this implementation is multithreaded), reduces binary size (I observed a 173KB reduction), and probably reduces compile time.
37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "BLI_array_utils.hh"
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namespace blender::array_utils {
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void copy(const GVArray &src,
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const IndexMask selection,
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GMutableSpan dst,
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const int64_t grain_size)
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{
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BLI_assert(src.type() == dst.type());
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BLI_assert(src.size() == dst.size());
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threading::parallel_for(selection.index_range(), grain_size, [&](const IndexRange range) {
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src.materialize_to_uninitialized(selection.slice(range), dst.data());
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});
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}
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void gather(const GVArray &src,
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const IndexMask indices,
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GMutableSpan dst,
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const int64_t grain_size)
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{
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BLI_assert(src.type() == dst.type());
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BLI_assert(indices.size() == dst.size());
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threading::parallel_for(indices.index_range(), grain_size, [&](const IndexRange range) {
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src.materialize_compressed_to_uninitialized(indices.slice(range), dst.slice(range).data());
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});
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}
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void gather(const GSpan src, const IndexMask indices, GMutableSpan dst, const int64_t grain_size)
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{
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gather(GVArray::ForSpan(src), indices, dst, grain_size);
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}
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} // namespace blender::array_utils
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