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Add fontdue optimization

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This commit is contained in:
Anurag Thakur 2022-10-19 00:51:07 +05:30
parent 17d14a6cef
commit 467ba66539
1 changed files with 46 additions and 0 deletions
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46
src/dense/ftdense.c
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@ -133,6 +133,51 @@ dense_render_line( dense_worker* worker, TPos tox, TPos toy )
}
if(deltax == 0){
FT26D6 x = from_x;
int x0i = x>>6;
FT26D6 x0floor = x0i<<6;
// y-coordinate of first pixel of line
int y0 = from_y>>6;
// y-coordinate of last pixel of line
int y_limit = (to_y + 0x3f)>>6;
FT20D12* m_a = worker->m_a;
for ( int y = y0; y < y_limit; y++ )
{
int linestart = y * worker->m_w;
FT26D6 dy = min( (y + 1)<<6, to_y ) - max( y<<6, from_y );
m_a[linestart + x0i] += dir*dy*(64 - x + x0floor);
m_a[linestart + ( x0i + 1 )] += dir*dy*(x-x0floor);
}
// int y = y0;
// int linestart = y * worker->m_w;
// FT26D6 dy1 = min( (y + 1)<<6, to_y ) - max( y<<6, from_y );
// m_a[linestart + x0i] += dir*dy1*(64 - x + x0floor);
// m_a[linestart + ( x0i + 1 )] += dir*dy1*(x-x0floor);
// y = y_limit -1;
// linestart = y * worker->m_w;
// FT26D6 dy2 = min( (y + 1)<<6, to_y ) - max( y<<6, from_y );
// m_a[linestart + x0i] += dir*dy2*(64 - x + x0floor);
// m_a[linestart + ( x0i + 1 )] += dir*dy2*(x-x0floor);
}else{
FT26D6 x = from_x;
// y-coordinate of first pixel of line
@ -230,6 +275,7 @@ dense_render_line( dense_worker* worker, TPos tox, TPos toy )
}
x = xnext;
}
}
}
static int