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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#include "graphics/sjis.h"
#ifdef GRAPHICS_SJIS_H
#include "common/debug.h"
#include "common/archive.h"
namespace Graphics {
template<typename Color>
void FontSJIS16x16::drawCharInternOutline(const uint16 *glyph, uint8 *dst, int pitch, Color c1, Color c2) const {
uint32 outlineGlyph[18];
memset(outlineGlyph, 0, sizeof(outlineGlyph));
// Create an outline map including the original character
const uint16 *src = glyph;
for (int i = 0; i < 16; ++i) {
uint32 line = *src++;
line = (line << 2) | (line << 1) | (line << 0);
outlineGlyph[i + 0] |= line;
outlineGlyph[i + 1] |= line;
outlineGlyph[i + 2] |= line;
}
uint8 *dstLine = dst;
for (int y = 0; y < 18; ++y) {
Color *lineBuf = (Color *)dstLine;
uint32 line = outlineGlyph[y];
for (int x = 0; x < 18; ++x) {
if (line & 0x20000)
*lineBuf = c2;
line <<= 1;
++lineBuf;
}
dstLine += pitch;
}
// draw the original char
drawCharIntern<Color>(glyph, dst + pitch + 1, pitch, c1);
}
template<typename Color>
void FontSJIS16x16::drawCharIntern(const uint16 *glyph, uint8 *dst, int pitch, Color c1) const {
for (int y = 0; y < 16; ++y) {
Color *lineBuf = (Color *)dst;
uint16 line = *glyph++;
for (int x = 0; x < 16; ++x) {
if (line & 0x8000)
*lineBuf = c1;
line <<= 1;
++lineBuf;
}
dst += pitch;
}
}
void FontSJIS16x16::drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1, uint32 c2) const {
const uint16 *glyphSource = getCharData(ch);
if (bpp == 1) {
if (!_outlineEnabled)
drawCharIntern<uint8>(glyphSource, (uint8 *)dst, pitch, c1);
else
drawCharInternOutline<uint8>(glyphSource, (uint8 *)dst, pitch, c1, c2);
} else if (bpp == 2) {
if (!_outlineEnabled)
drawCharIntern<uint16>(glyphSource, (uint8 *)dst, pitch, c1);
else
drawCharInternOutline<uint16>(glyphSource, (uint8 *)dst, pitch, c1, c2);
} else {
error("FontTowns::drawChar: unsupported bpp: %d", bpp);
}
}
// FM-TOWNS ROM font
bool FontTowns::loadData() {
Common::SeekableReadStream *data = SearchMan.createReadStreamForMember("FMT_FNT.ROM");
if (!data)
return false;
for (uint i = 0; i < (kFontRomSize / 2); ++i)
_fontData[i] = data->readUint16BE();
bool retValue = !data->err();
delete data;
return retValue;
}
const uint16 *FontTowns::getCharData(uint16 ch) const {
uint8 f = ch & 0xFF;
uint8 s = ch >> 8;
// copied from scumm\charset.cpp
enum {
KANA = 0,
KANJI = 1,
EKANJI = 2
};
int base = s - ((s + 1) % 32);
int c = 0, p = 0, chunk_f = 0, chunk = 0, cr = 0, kanjiType = KANA;
if (f >= 0x81 && f <= 0x84) kanjiType = KANA;
if (f >= 0x88 && f <= 0x9f) kanjiType = KANJI;
if (f >= 0xe0 && f <= 0xea) kanjiType = EKANJI;
if ((f > 0xe8 || (f == 0xe8 && base >= 0x9f)) || (f > 0x90 || (f == 0x90 && base >= 0x9f))) {
c = 48; //correction
p = -8; //correction
}
if (kanjiType == KANA) {//Kana
chunk_f = (f - 0x81) * 2;
} else if (kanjiType == KANJI) {//Standard Kanji
p += f - 0x88;
chunk_f = c + 2 * p;
} else if (kanjiType == EKANJI) {//Enhanced Kanji
p += f - 0xe0;
chunk_f = c + 2 * p;
}
// Base corrections
if (base == 0x7f && s == 0x7f)
base -= 0x20;
if (base == 0x9f && s == 0xbe)
base += 0x20;
if (base == 0xbf && s == 0xde)
base += 0x20;
//if (base == 0x7f && s == 0x9e)
// base += 0x20;
switch (base) {
case 0x3f:
cr = 0; //3f
if (kanjiType == KANA) chunk = 1;
else if (kanjiType == KANJI) chunk = 31;
else if (kanjiType == EKANJI) chunk = 111;
break;
case 0x5f:
cr = 0; //5f
if (kanjiType == KANA) chunk = 17;
else if (kanjiType == KANJI) chunk = 47;
else if (kanjiType == EKANJI) chunk = 127;
break;
case 0x7f:
cr = -1; //80
if (kanjiType == KANA) chunk = 9;
else if (kanjiType == KANJI) chunk = 63;
else if (kanjiType == EKANJI) chunk = 143;
break;
case 0x9f:
cr = 1; //9e
if (kanjiType == KANA) chunk = 2;
else if (kanjiType == KANJI) chunk = 32;
else if (kanjiType == EKANJI) chunk = 112;
break;
case 0xbf:
cr = 1; //be
if (kanjiType == KANA) chunk = 18;
else if (kanjiType == KANJI) chunk = 48;
else if (kanjiType == EKANJI) chunk = 128;
break;
case 0xdf:
cr = 1; //de
if (kanjiType == KANA) chunk = 10;
else if (kanjiType == KANJI) chunk = 64;
else if (kanjiType == EKANJI) chunk = 144;
break;
default:
debug(4, "Invalid Char! f %x s %x base %x c %d p %d", f, s, base, c, p);
}
debug(6, "Kanji: %c%c f 0x%x s 0x%x base 0x%x c %d p %d chunk %d cr %d index %d", f, s, f, s, base, c, p, chunk, cr, ((chunk_f + chunk) * 32 + (s - base)) + cr);
return _fontData + (((chunk_f + chunk) * 32 + (s - base)) + cr) * 16;
}
// ScummVM SJIS font
bool FontSjisSVM::loadData() {
Common::SeekableReadStream *data = SearchMan.createReadStreamForMember("SJIS.FNT");
if (!data)
return false;
uint32 version = data->readUint32BE();
if (version != 1) {
delete data;
return false;
}
uint numChars = data->readUint16BE();
_fontData = new uint16[numChars * 16];
assert(_fontData);
for (uint i = 0; i < numChars * 16; ++i)
_fontData[i] = data->readUint16BE();
bool retValue = !data->err();
delete data;
return retValue;
}
const uint16 *FontSjisSVM::getCharData(uint16 c) const {
const uint8 fB = c & 0xFF;
const uint8 sB = c >> 8;
// We only allow 2 byte SJIS characters.
if (fB <= 0x80 || fB >= 0xF0 || (fB >= 0xA0 && fB <= 0xDF) || sB == 0x7F)
return 0;
int base = fB;
base -= 0x81;
if (base >= 0x5F)
base -= 0x40;
int index = sB;
index -= 0x40;
if (index >= 0x3F)
--index;
return _fontData + (base * 0xBC + index) * 16;
}
} // end of namespace Graphics
#endif // defined(GRAPHICS_SJIS_H)
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