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#include "fitz.h"
const fz_rect fz_infiniterect = { 1, 1, -1, -1 };
const fz_rect fz_emptyrect = { 0, 0, 0, 0 };
const fz_rect fz_unitrect = { 0, 0, 1, 1 };
const fz_bbox fz_infinitebbox = { 1, 1, -1, -1 };
const fz_bbox fz_emptybbox = { 0, 0, 0, 0 };
const fz_bbox fz_unitbbox = { 0, 0, 1, 1 };
fz_bbox
fz_roundrect(fz_rect f)
{
fz_bbox i;
i.x0 = floorf(f.x0);
i.y0 = floorf(f.y0);
i.x1 = ceilf(f.x1);
i.y1 = ceilf(f.y1);
return i;
}
fz_bbox
fz_intersectbbox(fz_bbox a, fz_bbox b)
{
fz_bbox r;
if (fz_isinfiniterect(a)) return b;
if (fz_isinfiniterect(b)) return a;
if (fz_isemptyrect(a)) return fz_emptybbox;
if (fz_isemptyrect(b)) return fz_emptybbox;
r.x0 = MAX(a.x0, b.x0);
r.y0 = MAX(a.y0, b.y0);
r.x1 = MIN(a.x1, b.x1);
r.y1 = MIN(a.y1, b.y1);
return (r.x1 < r.x0 || r.y1 < r.y0) ? fz_emptybbox : r;
}
fz_bbox
fz_unionbbox(fz_bbox a, fz_bbox b)
{
fz_bbox r;
if (fz_isinfiniterect(a)) return a;
if (fz_isinfiniterect(b)) return b;
if (fz_isemptyrect(a)) return b;
if (fz_isemptyrect(b)) return a;
r.x0 = MIN(a.x0, b.x0);
r.y0 = MIN(a.y0, b.y0);
r.x1 = MAX(a.x1, b.x1);
r.y1 = MAX(a.y1, b.y1);
return r;
}
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