Fix loading of codepoints.

[zxchris]

texture_font_load_glyphs() is incorrectly processing the passed in codepoints list. It increments the index offset by each codepoint length correctly, but is using that bytecount as a codepoint count.

Thus it stops processing when it has read utf8_strlen(codepoints) bytes, not utf8_strlen(codepoints) glyphs. So if your codepoint list had 147 codepoints, only 147 bytes were being consumed.

[forthy42]

Simpler solution, just use the strlen of codepoints. No second variable needed.

for( i = 0; i < strlen(codepoints); i += utf8_surrogate_len(codepoints + i) ) {

[rougier]

@zxchris Does the @forthy42 solution works for you ?

[zxchris]

Yes works fine, it's effectively the same thing, but counting bytes not glyphs. And it's arguably more efficient too, not doing the glyph count up front.