static float ui_draw_glyph(fz_font *font, int gid, float x, float y)
{
struct glyph *glyph;
float s0, t0, s1, t1, xc, yc;
glyph = lookup_glyph(font, gid, &x, &y);
if (!glyph)
return 0;
s0 = (float) glyph->s / g_cache_w;
t0 = (float) glyph->t / g_cache_h;
s1 = (float) (glyph->s + glyph->w) / g_cache_w;
t1 = (float) (glyph->t + glyph->h) / g_cache_h;
xc = floorf(x) + glyph->lsb;
yc = floorf(y) - glyph->top + glyph->h;
glTexCoord2f(s0, t0);
glVertex2f(xc, yc - glyph->h);
glTexCoord2f(s1, t0);
glVertex2f(xc + glyph->w, yc - glyph->h);
glTexCoord2f(s1, t1);
glVertex2f(xc + glyph->w, yc);
glTexCoord2f(s0, t1);
glVertex2f(xc, yc);
return fz_advance_glyph(ctx, font, gid, 0) * g_font_size;
}
static float add_glyph(int gid, float x, float y)
{
struct glyph *glyph;
int subx = (x - floor(x)) * XPRECISION;
int suby = (y - floor(y)) * YPRECISION;
glyph = lookup_glyph(text_font, text_scale, gid, subx, suby);
if (!glyph)
return 0;
float s0 = (float) glyph->s / CACHESIZE;
float t0 = (float) glyph->t / CACHESIZE;
float s1 = (float) (glyph->s + glyph->w) / CACHESIZE;
float t1 = (float) (glyph->t + glyph->h) / CACHESIZE;
float xc = floor(x) + glyph->x;
float yc = floor(y) + glyph->y;
add_rect(xc, yc, xc + glyph->w, yc + glyph->h, s0, t0, s1, t1);
return glyph->advance;
}
