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optimize rendering

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Hojun-Cho
2026-02-08 18:06:30 +09:00
parent 9afad8e4ff
commit 884ba56619
7 changed files with 29 additions and 23 deletions
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22
font.c
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@@ -99,7 +99,8 @@ void
putfont(u32int *buf, int w, int h, int px, int py, Rune r)
{
Glyph *g;
int i, j, x, y, a, sel, f;
int i, j, a, sel, f;
int y0, j0, j1, x0, i0, i1;
u32int *p;
if(r >= Nglyphs)
@@ -116,17 +117,18 @@ putfont(u32int *buf, int w, int h, int px, int py, Rune r)
if(g->bmp == nil)
return;
}
for(j = 0; j < g->h; j++){
y = py + j + g->oy + Fontsz - Fontbase;
if(y < 0 || y >= h)
continue;
for(i = 0; i < g->w; i++){
x = px + i + g->ox;
if(x < 0 || x >= w)
continue;
y0 = py + g->oy + Fontsz - Fontbase;
j0 = y0 < 0 ? -y0 : 0;
j1 = y0 + g->h > h ? h - y0 : g->h;
x0 = px + g->ox;
i0 = x0 < 0 ? -x0 : 0;
i1 = x0 + g->w > w ? w - x0 : g->w;
for(j = j0; j < j1; j++){
for(i = i0; i < i1; i++){
a = g->bmp[j * g->w + i];
if(a > 0){
p = &buf[y * w + x];
p = &buf[(y0 + j) * w + x0 + i];
sel = (*p == Colsel) ? 1 : 0;
*p = blendtab[sel][a];
}