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Issue #1355 - Make nsTableCellFrame::GetColIndex/GetRowIndex faster

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We can devirtualize it, remove some branches.
This commit is contained in:
win7-7 2020-02-16 16:06:53 +02:00 • committed by Roy Tam
commit e8bb5560f7
12 changed files with 106 additions and 152 deletions
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51
layout/tables/nsTableCellFrame.cpp
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@ -74,8 +74,7 @@ nsTableCellFrame::Init(nsIContent* aContent,
if (aPrevInFlow) {
// Set the column index
nsTableCellFrame* cellFrame = (nsTableCellFrame*)aPrevInFlow;
int32_t colIndex;
cellFrame->GetColIndex(colIndex);
uint32_t colIndex = cellFrame->ColIndex();
SetColIndex(colIndex);
}
}
@ -168,34 +167,6 @@ nsTableCellFrame::NeedsToObserve(const ReflowInput& aReflowInput)
fType == nsGkAtoms::tableWrapperFrame);
}
nsresult
nsTableCellFrame::GetRowIndex(int32_t &aRowIndex) const
{
nsresult result;
nsTableRowFrame* row = static_cast<nsTableRowFrame*>(GetParent());
if (row) {
aRowIndex = row->GetRowIndex();
result = NS_OK;
}
else {
aRowIndex = 0;
result = NS_ERROR_NOT_INITIALIZED;
}
return result;
}
nsresult
nsTableCellFrame::GetColIndex(int32_t &aColIndex) const
{
if (GetPrevInFlow()) {
return static_cast<nsTableCellFrame*>(FirstInFlow())->GetColIndex(aColIndex);
}
else {
aColIndex = mColIndex;
return NS_OK;
}
}
nsresult
nsTableCellFrame::AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
@ -224,13 +195,13 @@ nsTableCellFrame::DidSetStyleContext(nsStyleContext* aOldStyleContext)
nsTableFrame* tableFrame = GetTableFrame();
if (tableFrame->IsBorderCollapse() &&
tableFrame->BCRecalcNeeded(aOldStyleContext, StyleContext())) {
int32_t colIndex, rowIndex;
GetColIndex(colIndex);
GetRowIndex(rowIndex);
uint32_t colIndex = ColIndex();
uint32_t rowIndex = RowIndex();
// row span needs to be clamped as we do not create rows in the cellmap
// which do not have cells originating in them
TableArea damageArea(colIndex, rowIndex, GetColSpan(),
std::min(GetRowSpan(), tableFrame->GetRowCount() - rowIndex));
std::min(static_cast<uint32_t>(GetRowSpan()),
tableFrame->GetRowCount() - rowIndex));
tableFrame->AddBCDamageArea(damageArea);
}
}
@ -820,14 +791,13 @@ CalcUnpaginatedBSize(nsTableCellFrame& aCellFrame,
nsTableRowGroupFrame* firstRGInFlow =
static_cast<nsTableRowGroupFrame*>(row->GetParent());
int32_t rowIndex;
firstCellInFlow->GetRowIndex(rowIndex);
uint32_t rowIndex = firstCellInFlow->RowIndex();
int32_t rowSpan = aTableFrame.GetEffectiveRowSpan(*firstCellInFlow);
nscoord computedBSize = firstTableInFlow->GetRowSpacing(rowIndex,
rowIndex + rowSpan - 1);
computedBSize -= aBlockDirBorderPadding;
int32_t rowX;
uint32_t rowX;
for (row = firstRGInFlow->GetFirstRow(), rowX = 0; row; row = row->GetNextRow(), rowX++) {
if (rowX > rowIndex + rowSpan - 1) {
break;
@ -1042,12 +1012,7 @@ nsTableCellFrame::AccessibleType()
NS_IMETHODIMP
nsTableCellFrame::GetCellIndexes(int32_t &aRowIndex, int32_t &aColIndex)
{
nsresult res = GetRowIndex(aRowIndex);
if (NS_FAILED(res))
{
aColIndex = 0;
return res;
}
aRowIndex = RowIndex();
aColIndex = mColIndex;
return NS_OK;
}