blender
/
blender
129
398
Fork 572
Code Issues 6.2k Pull Requests 746 Projects 19 Wiki Activity

Functions: add slice method for generic spans

This commit is contained in:
Jacques Lucke 2021-04-21 16:59:22 +02:00
parent b9cbf7fc80
commit d5309bf4cf
1 changed files with 16 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
source/blender/functions/FN_generic_span.hh
View File

@ -85,6 +85,14 @@ class GSpan {
BLI_assert(type_->is<T>());
return Span<T>(static_cast<const T *>(data_), size_);
}
GSpan slice(const int64_t start, int64_t size) const
{
BLI_assert(start >= 0);
BLI_assert(size >= 0);
const int64_t new_size = std::max<int64_t>(0, std::min(size, size_ - start));
return GSpan(*type_, POINTER_OFFSET(data_, type_->size() * start), new_size);
}
};
/**
@ -153,6 +161,14 @@ class GMutableSpan {
BLI_assert(type_->is<T>());
return MutableSpan<T>(static_cast<T *>(data_), size_);
}
GMutableSpan slice(const int64_t start, int64_t size) const
{
BLI_assert(start >= 0);
BLI_assert(size >= 0);
const int64_t new_size = std::max<int64_t>(0, std::min(size, size_ - start));
return GMutableSpan(*type_, POINTER_OFFSET(data_, type_->size() * start), new_size);
}
};
} // namespace blender::fn