boolean
kpse_bitmap_tolerance P2C(double, dpi1, double, dpi2)
{
unsigned tolerance = KPSE_BITMAP_TOLERANCE (dpi2);
unsigned lower_bound = (int) (dpi2 - tolerance) < 0 ? 0 : dpi2 - tolerance;
unsigned upper_bound = dpi2 + tolerance;
return lower_bound <= dpi1 && dpi1 <= upper_bound;
}
static string
try_resolution P4C(const_string, fontname, unsigned, dpi,
kpse_file_format_type, format,
kpse_glyph_file_type *, glyph_file)
{
string ret = try_size (fontname, dpi, format, glyph_file);
if (!ret)
{
unsigned r;
unsigned tolerance = KPSE_BITMAP_TOLERANCE (dpi);
/* Cast to unsigned to shut up stupid compilers. */
unsigned lower_bound = (int) (dpi - tolerance) < 0 ? 0 : (unsigned)(dpi - tolerance);
unsigned upper_bound = (unsigned)(dpi + tolerance);
/* Prefer scaling up to scaling down, since scaling down can omit
character features (Tom did this in dvips). */
for (r = lower_bound; !ret && r <= upper_bound; r++)
if (r != dpi)
ret = try_size (fontname, r, format, glyph_file);
}
return ret;
}
static string
try_resolution P4C(const_string, font_name,
unsigned, dpi,
string *, glyph_paths,
kpse_font_file_type *, font_file)
{
string ret = try_size (font_name, dpi, glyph_paths, font_file);
if (!ret)
{
unsigned r;
unsigned tolerance = KPSE_BITMAP_TOLERANCE (dpi);
unsigned lower_bound = (int) (dpi - tolerance) < 0 ? 0 : dpi - tolerance;
unsigned upper_bound = dpi + tolerance;
/* Prefer scaling up to scaling down, since scaling down can omit
character features (Tom did this in dvips). */
for (r = lower_bound; !ret && r <= upper_bound; r++)
if (r != dpi)
ret = try_size (font_name, r, glyph_paths, font_file);
}
return ret;
}
