[3/5] gdi32: Implement synthesizing bold glyphs for bitmap fonts. (resend)

[Huw Davies]

On Fri, Nov 06, 2015 at 09:25:09PM +0900, Akihiro Sagawa wrote:
> @@ -6970,7 +6971,16 @@ static DWORD get_glyph_outline(GdiFont *incoming_font, UINT glyph, UINT format,
>  	    INT w = min( pitch, (ft_face->glyph->bitmap.width + 7) >> 3 );
>  	    INT h = min( height, ft_face->glyph->bitmap.rows );
>  	    while(h--) {
> -	        memcpy(dst, src, w);
> +		if (!font->fake_bold)
> +		    memcpy(dst, src, w);
> +		else {
> +		    INT x;
> +		    dst[0] = 0;
> +		    for (x = 0; x < w; x++) {
> +			dst[x  ] = (dst[x] & 0x80) | (src[x] >> 1) | src[x];
> +			dst[x+1] = (src[x] & 0x01) << 7;

This could write past the end of dst (and similarly for ones below).

Huw.