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Speed up back color erase -- no more loop over all cells

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This commit is contained in:
Keith Winstein
2011-02-10 20:32:39 -05:00
parent 0fb343292a
commit 7d1013681f
5 changed files with 47 additions and 74 deletions
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terminalfunctions.cpp
+7 -15
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@@ -12,7 +12,7 @@ using namespace Terminal;
static void clearline( Framebuffer *fb, int row, int start, int end )
{
for ( int col = start; col <= end; col++ ) {
fb->get_cell( row, col )->reset();
fb->reset_cell( fb->get_cell( row, col ) );
}
}
@@ -27,7 +27,7 @@ void CSI_EL( Framebuffer *fb, Dispatcher *dispatch )
clearline( fb, -1, 0, fb->ds.get_cursor_col() );
break;
case 2: /* all of line */
fb->get_row( -1 )->reset();
fb->reset_row( fb->get_row( -1 ) );
break;
}
}
@@ -40,18 +40,18 @@ void CSI_ED( Framebuffer *fb, Dispatcher *dispatch ) {
case 0: /* active position to end of screen, inclusive */
clearline( fb, -1, fb->ds.get_cursor_col(), fb->ds.get_width() - 1 );
for ( int y = fb->ds.get_cursor_row() + 1; y < fb->ds.get_height(); y++ ) {
fb->get_row( y )->reset();
fb->reset_row( fb->get_row( y ) );
}
break;
case 1: /* start of screen to active position, inclusive */
for ( int y = 0; y < fb->ds.get_cursor_row(); y++ ) {
fb->get_row( y )->reset();
fb->reset_row( fb->get_row( y ) );
}
clearline( fb, -1, 0, fb->ds.get_cursor_col() );
break;
case 2: /* entire screen */
for ( int y = 0; y < fb->ds.get_height(); y++ ) {
fb->get_row( y )->reset();
fb->reset_row( fb->get_row( y ) );
}
break;
}
@@ -114,7 +114,7 @@ void Esc_DECALN( Framebuffer *fb, Dispatcher *dispatch __attribute((unused)) )
{
for ( int y = 0; y < fb->ds.get_height(); y++ ) {
for ( int x = 0; x < fb->ds.get_width(); x++ ) {
fb->get_cell( y, x )->reset();
fb->reset_cell( fb->get_cell( y, x ) );
fb->get_cell( y, x )->contents.push_back( L'E' );
}
}
@@ -215,7 +215,7 @@ static bool *get_DEC_mode( int param, Framebuffer *fb ) {
fb->ds.move_row( 0 );
fb->ds.move_col( 0 );
for ( int y = 0; y < fb->ds.get_height(); y++ ) {
fb->get_row( y )->reset();
fb->reset_row( fb->get_row( y ) );
}
return NULL;
case 5: /* reverse video */
@@ -312,16 +312,8 @@ static Function func_Ctrl_BEL( CONTROL, "\x07", Ctrl_BEL );
/* select graphics rendition -- e.g., bold, blinking, etc. */
void CSI_SGR( Framebuffer *fb, Dispatcher *dispatch )
{
bool bce = false;
for ( int i = 0; i < dispatch->param_count(); i++ ) {
int rendition = dispatch->getparam( i, 0 );
if ( (40 <= rendition) && (rendition <= 49) && (!bce) ) {
/* we're changing the background color */
fb->back_color_erase();
bce = true;
}
fb->ds.add_rendition( rendition );
}
}