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font: remove getData from canvas

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This commit is contained in:
Mitchell Hashimoto
2022-12-13 21:09:09 -08:00
parent ead8610604
commit 68e697dcbe
1 changed files with 0 additions and 30 deletions
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30
src/font/sprite/canvas.zig
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@ -255,34 +255,4 @@ const PixmanImpl = struct {
@intCast(u16, dest.height),
);
}
/// Returns a copy of the raw pixel data in A8 format. The returned value
/// must be freed by the caller. The returned data always has a stride
/// exactly equivalent to the width.
pub fn getData(self: *const Canvas, alloc: Allocator) ![]u8 {
const width = @intCast(u32, self.image.getWidth());
const height = @intCast(u32, self.image.getHeight());
const stride = self.image.getStride();
var result = try alloc.alloc(u8, height * width);
errdefer alloc.free(result);
// We want to convert our []u32 to []u8 since we use an 8bpp format
const data = @alignCast(
@alignOf(u8),
@ptrCast([*]u8, self.data.ptr)[0 .. self.data.len * 4],
);
// Convert our strided data
var dst_ptr = result;
var src_ptr = data.ptr;
var i: usize = 0;
while (i < height) : (i += 1) {
std.mem.copy(u8, dst_ptr, src_ptr[0..width]);
dst_ptr = dst_ptr[width..];
src_ptr += @intCast(usize, stride);
}
return result;
}
};