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Bail out from rendering when bitmap_buffer is null #197

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May 25, 2023
Merged

Bail out from rendering when bitmap_buffer is null #197

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7 changes: 7 additions & 0 deletions src/loaders/freetype.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -844,6 +844,13 @@ impl Font {
let bitmap_size = Vector2I::new(bitmap_width, bitmap_height);
let bitmap_buffer = (*bitmap).buffer as *const i8 as *const u8;
let bitmap_length = bitmap_stride * bitmap_height as usize;
if bitmap_buffer.is_null() {
assert_eq!(
bitmap_length, 0,
"bitmap length should be 0 when bitmap_buffer is nullptr"
);
return Ok(());
}
let buffer = slice::from_raw_parts(bitmap_buffer, bitmap_length);
let dst_point = Vector2I::new(
(*(*self.freetype_face).glyph).bitmap_left,
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