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Change Framebuffer's containers/methods to improve performance.

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* Reduce the size of Terminal::Cell.
* Change colors and attributes in Terminal::Rendition to bitfields/bitmask.
* Change Cells to use UTF-8 strings instead of vector<wchar_t>.  Store Rows in a vector instead of a deque.
* Add various Framebuffer::append() methods for more efficient passing of single and repeated characters.
* Change title/icon strings from deques to a vector typedef-- this is more for tidiness than any real performance.
This commit is contained in:
John Hood
2014-06-14 19:16:13 -04:00
parent 8fdcdc88cd
commit 32afa96111
10 changed files with 195 additions and 164 deletions
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src/frontend/terminaloverlay.cc
+7 -7
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@@ -61,15 +61,15 @@ void ConditionalOverlayCell::apply( Framebuffer &fb, uint64_t confirmed_epoch, i
if ( unknown ) {
if ( flag && ( col != fb.ds.get_width() - 1 ) ) {
fb.get_mutable_cell( row, col )->renditions.underlined = true;
fb.get_mutable_cell( row, col )->renditions.set_attribute(Renditions::underlined, true);
}
return;
}
if ( !(*(fb.get_cell( row, col )) == replacement) ) {
if ( *fb.get_cell( row, col ) != replacement ) {
*(fb.get_mutable_cell( row, col )) = replacement;
if ( flag ) {
fb.get_mutable_cell( row, col )->renditions.underlined = true;
fb.get_mutable_cell( row, col )->renditions.set_attribute( Renditions::underlined, true );
}
}
}
@@ -275,7 +275,7 @@ void NotificationEngine::apply( Framebuffer &fb ) const
case 2: /* wide character */
this_cell = fb.get_mutable_cell( 0, overlay_col );
fb.reset_cell( this_cell );
this_cell->renditions.bold = true;
this_cell->renditions.set_attribute(Renditions::bold, true);
this_cell->renditions.foreground_color = 37;
this_cell->renditions.background_color = 44;
@@ -296,7 +296,7 @@ void NotificationEngine::apply( Framebuffer &fb ) const
overlay_col++;
}
if ( combining_cell->contents.size() < 16 ) {
if ( combining_cell->contents.size() < 32 ) {
combining_cell->contents.push_back( ch );
}
break;
@@ -345,9 +345,9 @@ void OverlayManager::apply( Framebuffer &fb )
title.apply( fb );
}
void TitleEngine::set_prefix( const wstring s )
void TitleEngine::set_prefix( const wstring &s )
{
prefix = deque<wchar_t>( s.begin(), s.end() );
prefix = Terminal::Framebuffer::title_type( s.begin(), s.end() );
}
void ConditionalOverlayRow::apply( Framebuffer &fb, uint64_t confirmed_epoch, bool flag ) const