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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
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GPG key ID: B5690EEEBB952194
5 changed files with 29 additions and 20 deletions
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3
src/desktop/Popup.cpp
View file

@ -288,12 +288,13 @@ bool CPopup::visible() {
return false;
}
void CPopup::bfHelper(std::vector<CPopup*> nodes, std::function<void(CPopup*, void*)> fn, void* data) {
void CPopup::bfHelper(std::vector<CPopup*> const& nodes, std::function<void(CPopup*, void*)> fn, void* data) {
for (auto const& n : nodes) {
fn(n, data);
}
std::vector<CPopup*> nodes2;
nodes2.reserve(nodes.size() * 2);
for (auto const& n : nodes) {
for (auto const& c : n->m_vChildren) {

2
src/desktop/Popup.hpp
View file

@ -81,5 +81,5 @@ class CPopup {
Vector2D localToGlobal(const Vector2D& rel);
Vector2D t1ParentCoords();
static void bfHelper(std::vector<CPopup*> nodes, std::function<void(CPopup*, void*)> fn, void* data);
static void bfHelper(std::vector<CPopup*> const& nodes, std::function<void(CPopup*, void*)> fn, void* data);
};

3
src/protocols/core/Compositor.cpp
View file

@ -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;

39
src/render/decorations/DecorationPositioner.cpp
View file

@ -294,13 +294,11 @@ SBoxExtents CDecorationPositioner::getWindowDecorationReserved(PHLWINDOW pWindow
}
SBoxExtents CDecorationPositioner::getWindowDecorationExtents(PHLWINDOW pWindow, bool inputOnly) {
CBox accum = pWindow->getWindowMainSurfaceBox();
CBox const mainSurfaceBox = pWindow->getWindowMainSurfaceBox();
CBox accum = mainSurfaceBox;
for (auto const& data : m_vWindowPositioningDatas) {
if (!data->pDecoration)
continue;
if (!(data->pDecoration->getDecorationFlags() & DECORATION_ALLOWS_MOUSE_INPUT) && inputOnly)
if (!data->pDecoration || (inputOnly && !(data->pDecoration->getDecorationFlags() & DECORATION_ALLOWS_MOUSE_INPUT)))
continue;
auto const window = data->pWindow.lock();
@ -308,31 +306,40 @@ SBoxExtents CDecorationPositioner::getWindowDecorationExtents(PHLWINDOW pWindow,
continue;
CBox decoBox;
if (data->positioningInfo.policy == DECORATION_POSITION_ABSOLUTE) {
decoBox = data->pWindow->getWindowMainSurfaceBox();
decoBox = mainSurfaceBox;
decoBox.addExtents(data->positioningInfo.desiredExtents);
} else {
decoBox = data->lastReply.assignedGeometry;
const auto EDGEPOINT = getEdgeDefinedPoint(data->positioningInfo.edges, pWindow);
decoBox.translate(EDGEPOINT);
decoBox = data->lastReply.assignedGeometry;
decoBox.translate(getEdgeDefinedPoint(data->positioningInfo.edges, pWindow));
}
// Check bounds only if decoBox extends beyond accum
SBoxExtents extentsToAdd;
bool needUpdate = false;
if (decoBox.x < accum.x)
if (decoBox.x < accum.x) {
extentsToAdd.topLeft.x = accum.x - decoBox.x;
if (decoBox.y < accum.y)
needUpdate = true;
}
if (decoBox.y < accum.y) {
extentsToAdd.topLeft.y = accum.y - decoBox.y;
if (decoBox.x + decoBox.w > accum.x + accum.w)
needUpdate = true;
}
if (decoBox.x + decoBox.w > accum.x + accum.w) {
extentsToAdd.bottomRight.x = (decoBox.x + decoBox.w) - (accum.x + accum.w);
if (decoBox.y + decoBox.h > accum.y + accum.h)
needUpdate = true;
}
if (decoBox.y + decoBox.h > accum.y + accum.h) {
extentsToAdd.bottomRight.y = (decoBox.y + decoBox.h) - (accum.y + accum.h);
needUpdate = true;
}
accum.addExtents(extentsToAdd);
if (needUpdate)
accum.addExtents(extentsToAdd);
}
return accum.extentsFrom(pWindow->getWindowMainSurfaceBox());
return accum.extentsFrom(mainSurfaceBox);
}
CBox CDecorationPositioner::getBoxWithIncludedDecos(PHLWINDOW pWindow) {