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internal: few more marginal optimisations from profiling (#8271)

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* deco: reduce local temporars and function calls

profiling shows this is a high used function, reduce the amount of
function calls and local temporar copies and also check if we even need
to add extents at all in the loop.

* popup: optimize bfhelper in popups

pass nodes as const reference and reserve the size of the children node
vector help reduce the reallocations.

* procotol: make compositor bfhelper use const ref

use const ref for nodes and reserve second nodes vector size to reduce
amount of reallocation needed.
This commit is contained in:
Tom Englund
2024-10-28 19:02:52 +01:00
committed by GitHub
parent d49a1334a8
commit c7315617eb
5 changed files with 29 additions and 20 deletions
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3
src/protocols/core/Compositor.cpp
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@@ -252,9 +252,10 @@ void CWLSurfaceResource::resetRole() {
role = makeShared<CDefaultSurfaceRole>();
}
void CWLSurfaceResource::bfHelper(std::vector<SP<CWLSurfaceResource>> nodes, std::function<void(SP<CWLSurfaceResource>, const Vector2D&, void*)> fn, void* data) {
void CWLSurfaceResource::bfHelper(std::vector<SP<CWLSurfaceResource>> const& nodes, std::function<void(SP<CWLSurfaceResource>, const Vector2D&, void*)> fn, void* data) {
std::vector<SP<CWLSurfaceResource>> nodes2;
nodes2.reserve(nodes.size() * 2);
// first, gather all nodes below
for (auto const& n : nodes) {

2
src/protocols/core/Compositor.hpp
View File

@@ -147,7 +147,7 @@ class CWLSurfaceResource {
void dropPendingBuffer();
void dropCurrentBuffer();
void commitPendingState();
void bfHelper(std::vector<SP<CWLSurfaceResource>> nodes, std::function<void(SP<CWLSurfaceResource>, const Vector2D&, void*)> fn, void* data);
void bfHelper(std::vector<SP<CWLSurfaceResource>> const& nodes, std::function<void(SP<CWLSurfaceResource>, const Vector2D&, void*)> fn, void* data);
void updateCursorShm();
friend class CWLPointerResource;