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Add utfsjis.{h,cpp}

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kichikuou
2019-08-25 19:26:52 +09:00
parent f6a55daff2
commit ae6e20b874
5 changed files with 117 additions and 105 deletions
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src/sys/ags_text.cpp
+1 -99
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@@ -6,19 +6,10 @@
#include <string.h>
#include "ags.h"
#include "s2utbl.h"
#include "utfsjis.h"
static bool antialias = false;
inline uint16 sjis_to_unicode(uint16 code)
{
if (code >= 0xa0 && code <= 0xdf)
return 0xff60 + code - 0xa0;
if (code < 0x100)
return code;
return s2u[(code >> 8) - 0x80][(code & 0xff) - 0x40];
}
void AGS::draw_text(char string[])
{
int p = 0;
@@ -539,93 +530,4 @@ void ags_setAntialiasedStringMode(int on) {
antialias = on != 0;
}
#ifdef __EMSCRIPTEN__
char* sjis2utf(char* str) {
unsigned char* src = (unsigned char*)str;
unsigned char* dst = (unsigned char*)malloc(strlen(str) * 3 + 1);
unsigned char* dstp = dst;
while (*src) {
if (*src <= 0x7f) {
*dstp++ = *src++;
continue;
}
int c;
if (*src >= 0xa0 && *src <= 0xdf) {
c = 0xff60 + *src - 0xa0;
src++;
} else {
c = s2u[*src - 0x80][*(src+1) - 0x40];
src += 2;
}
if (c <= 0x7f) {
*dstp++ = c;
} else if (c <= 0x7ff) {
*dstp++ = 0xc0 | c >> 6;
*dstp++ = 0x80 | (c & 0x3f);
} else {
*dstp++ = 0xe0 | c >> 12;
*dstp++ = 0x80 | (c >> 6 & 0x3f);
*dstp++ = 0x80 | (c & 0x3f);
}
}
*dstp = '\0';
return (char*)dst;
}
static int unicode_to_sjis(int u) {
for (int b1 = 0x80; b1 <= 0xff; b1++) {
if (b1 >= 0xa0 && b1 <= 0xdf)
continue;
for (int b2 = 0x40; b2 <= 0xff; b2++) {
if (u == s2u[b1 - 0x80][b2 - 0x40])
return b1 << 8 | b2;
}
}
return 0;
}
char* utf2sjis(char* str) {
unsigned char* src = (unsigned char*)str;
unsigned char* dst = (unsigned char*)malloc(strlen(str) + 1);
unsigned char* dstp = dst;
while (*src) {
if (*src <= 0x7f) {
*dstp++ = *src++;
continue;
}
int u;
if (*src <= 0xdf) {
u = (src[0] & 0x1f) << 6 | (src[1] & 0x3f);
src += 2;
} else if (*src <= 0xef) {
u = (src[0] & 0xf) << 12 | (src[1] & 0x3f) << 6 | (src[2] & 0x3f);
src += 3;
} else {
*dstp++ = '?';
do src++; while ((*src & 0xc0) == 0x80);
continue;
}
if (u > 0xff60 && u <= 0xff9f) {
*dstp++ = u - 0xff60 + 0xa0;
} else {
int c = unicode_to_sjis(u);
if (c) {
*dstp++ = c >> 8;
*dstp++ = c & 0xff;
} else {
*dstp++ = '?';
}
}
}
*dstp = '\0';
return (char*)dst;
}
#endif
}