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Fix warnings (and sanity-check for 0-bytes in utf8-strings

This commit is contained in:
Stefan `Sec` Zehl 2011-07-13 00:05:03 +02:00
parent 9d4d62f6a8
commit e4e26de687
2 changed files with 9 additions and 10 deletions
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17
firmware/lcd/render.c
View File

@ -141,24 +141,23 @@ int DoChar(int sx, int sy, int c){
#define UTF8
// decode 2 and 4-byte utf-8 strings.
#define UT2(a,b) ( ((a&31)<<6) + (b&63) )
#define UT3(a,b,c) ( ((a&15)<<12) + ((b&63)<<6) + (c&63) )
#define UT2(a) ( ((a[0]&31)<<6) + (a[1]&63) )
#define UT3(a) ( ((a[0]&15)<<12) + ((a[1]&63)<<6) + (a[2]&63) )
int DoString(int sx, int sy, char *s){
char *c;
int DoString(int sx, int sy, const char *s){
const char *c;
int uc;
for(c=s;*c!=0;c++){
#ifdef UTF8
/* will b0rk on non-utf8 */
if((*c&(128+64+32))==(128+64)){
uc=UT2(*c,*(++c));
if((*c&(128+64+32))==(128+64) && c[1]!=0){
uc=UT2(c); c+=1;
sx=DoChar(sx,sy,uc);
}else if( (*c&(128+64+32+16))==(128+64+32)){
uc=UT3(*c,*(++c),*(++c));
}else if( (*c&(128+64+32+16))==(128+64+32) && c[1]!=0 && c[2] !=0){
uc=UT3(c); c+=2;
sx=DoChar(sx,sy,uc);
}else
#endif
sx=DoChar(sx,sy,*c);
};
return sx;

2
firmware/lcd/render.h
View File

@ -27,7 +27,7 @@
*/
int DoChar(int sx, int sy, int c);
int DoString(int sx, int sy, char *s);
int DoString(int sx, int sy, const char *s);
int DoInt(int sx, int sy, int num);
int DoIntX(int sx, int sy, unsigned int num);