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Fix invalid UTF-8 handling of extra bytes

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Ankith 2021-03-15 15:10:49 +05:30 committed by Sam Lantinga
parent 96cc49857d
commit 07fc1bb883
1 changed files with 1 additions and 16 deletions
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17
src/events/SDL_keyboard.c
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@ -537,27 +537,12 @@ SDL_UCS4ToUTF8(Uint32 ch, char *dst)
p[1] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[2] = 0x80 | (Uint8) (ch & 0x3F);
dst += 3;
} else if (ch <= 0x1FFFFF) {
} else {
p[0] = 0xF0 | (Uint8) ((ch >> 18) & 0x07);
p[1] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
p[2] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[3] = 0x80 | (Uint8) (ch & 0x3F);
dst += 4;
} else if (ch <= 0x3FFFFFF) {
p[0] = 0xF8 | (Uint8) ((ch >> 24) & 0x03);
p[1] = 0x80 | (Uint8) ((ch >> 18) & 0x3F);
p[2] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
p[3] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[4] = 0x80 | (Uint8) (ch & 0x3F);
dst += 5;
} else {
p[0] = 0xFC | (Uint8) ((ch >> 30) & 0x01);
p[1] = 0x80 | (Uint8) ((ch >> 24) & 0x3F);
p[2] = 0x80 | (Uint8) ((ch >> 18) & 0x3F);
p[3] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
p[4] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[5] = 0x80 | (Uint8) (ch & 0x3F);
dst += 6;
}
return dst;
}