Hi Kevin,
On Fri, Oct 23, 2015 at 03:28:18PM +0800, Kevin Du Huanpeng wrote:
> Hi, How about add a index before get fontdata?
> so, we will able to support non-ascii fonts.
> like:
> drivers/video/fbconsole.c
> --> static void drawchar(struct fbc_priv *priv, int x, int y, char c)
> {
> ...
> - inbuf = &priv->fontdata[c * priv->font_height];
> + if(priv->index) {
> + inbuf = look up index in the table.
> + }
> + else {
> + inbuf = &priv->fontdata[c * priv->font_height];
> + }
> the index table like:
> struct font_index fontname_index = {
> { 0xXXXX, 0xYYYY }, /* where, 0xXXXX is the unioncode of the char */
> { 0xXXXX, 0xYYYY }, /* the 0xYYYY is the index of the fontdata array. */
> { 0xXXXX, 0xYYYY }, /* normally, we don't need a full char set. */
> { 0xXXXX, 0xYYYY }, /* just put the used chars in the table. */
> { 0xXXXX, 0xYYYY }, /* we also have a tool to generate fontdata array.*/
> };
If you want to support non-ascii fonts then why don't you simply add
one? Or is your concern that too much binary size is used when you only
need a small fraction of a font but you always have to provide 256
chars?
Sascha
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