mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-12 12:09:15 +00:00
GRAPHICS: Cleanup SJIS font code a bit.
This commit is contained in:
Johannes Schickel
parent
173db53e4b
commit
c047f871d6
@ -58,6 +58,43 @@ void FontSJIS::drawChar(Graphics::Surface &dst, uint16 ch, int x, int y, uint32
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drawChar(dst.getBasePtr(x, y), ch, dst.pitch, dst.format.bytesPerPixel, c1, c2, dst.w - x, dst.h - y);
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}
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FontSJISBase::FontSJISBase() : _drawMode(kDefaultMode), _flippedMode(false) {
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}
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void FontSJISBase::setDrawingMode(DrawingMode mode) {
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_drawMode = mode;
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}
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void FontSJISBase::toggleFlippedMode(bool enable) {
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_flippedMode = enable;
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}
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uint FontSJISBase::getFontHeight() const {
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switch (_drawMode) {
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case kOutlineMode:
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return 18;
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case kDefaultMode:
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return 16;
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default:
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return 17;
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}
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}
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uint FontSJISBase::getMaxFontWidth() const {
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switch (_drawMode) {
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case kOutlineMode:
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return 18;
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case kDefaultMode:
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return 16;
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default:
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return 17;
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}
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}
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template<typename Color>
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void FontSJISBase::blitCharacter(const uint8 *glyph, const int w, const int h, uint8 *dst, int pitch, Color c) const {
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for (int y = 0; y < h; ++y) {
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@ -131,6 +168,9 @@ const uint8 *FontSJISBase::flipCharacter(const uint8 *glyph, const int w) const
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0x0F, 0x8F, 0x4F, 0xC7, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x97, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF
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};
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// TODO: This code looks like it will only work with 16 pixel wide
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// characters we should really take care that we only call it on these
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// or we fix this to support a generic width.
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for (int i = 0; i < w; i++) {
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_tempGlyph[i] = flipData[glyph[(w * 2 - 1) - i]];
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_tempGlyph[(w * 2 - 1) - i] = flipData[glyph[i]];
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@ -146,8 +186,8 @@ void FontSJISBase::drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1,
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int outlineExtraWidth = 2, outlineExtraHeight = 2;
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int outlineXOffset = 0, outlineYOffset = 0;
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if (is8x16(ch)) {
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glyphSource = getCharData8x16(ch);
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if (isASCII(ch)) {
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glyphSource = getCharData(ch);
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width = 8;
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height = 16;
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} else {
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@ -177,6 +217,9 @@ void FontSJISBase::drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1,
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}
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#ifndef DISABLE_FLIPPED_MODE
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// TODO: This code inside flopCharater looks like it will only work with
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// 16 pixel wide characters we should really take care that we only call
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// it on these or we fix it to support a generic width.
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if (_flippedMode)
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glyphSource = flipCharacter(glyphSource, width);
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#endif
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@ -221,13 +264,13 @@ void FontSJISBase::drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1,
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}
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uint FontSJISBase::getCharWidth(uint16 ch) const {
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if (is8x16(ch))
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if (isASCII(ch))
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return (_drawMode == kOutlineMode) ? 10 : (_drawMode == kDefaultMode ? 8 : 9);
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else
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return getMaxFontWidth();
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}
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bool FontSJISBase::is8x16(uint16 ch) const {
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bool FontSJISBase::isASCII(uint16 ch) const {
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if (ch >= 0xFF)
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return false;
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else if (ch <= 0x7F || (ch >= 0xA1 && ch <= 0xDF))
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@ -253,105 +296,112 @@ bool FontTowns::loadData() {
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}
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const uint8 *FontTowns::getCharData(uint16 ch) const {
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uint8 f = ch & 0xFF;
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uint8 s = ch >> 8;
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if (ch < kFont8x16Chars) {
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return _fontData8x16 + ch * 16;
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} else {
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uint8 f = ch & 0xFF;
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uint8 s = ch >> 8;
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// copied from scumm\charset.cpp
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enum {
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KANA = 0,
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KANJI = 1,
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EKANJI = 2
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};
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// copied from scumm\charset.cpp
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enum {
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KANA = 0,
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KANJI = 1,
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EKANJI = 2
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};
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int base = s - ((s + 1) % 32);
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int c = 0, p = 0, chunk_f = 0, chunk = 0, cr = 0, kanjiType = KANA;
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int base = s - ((s + 1) % 32);
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int c = 0, p = 0, chunk_f = 0, chunk = 0, cr = 0, kanjiType = KANA;
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if (f >= 0x81 && f <= 0x84) kanjiType = KANA;
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if (f >= 0x88 && f <= 0x9f) kanjiType = KANJI;
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if (f >= 0xe0 && f <= 0xea) kanjiType = EKANJI;
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if (f >= 0x81 && f <= 0x84) kanjiType = KANA;
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if (f >= 0x88 && f <= 0x9f) kanjiType = KANJI;
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if (f >= 0xe0 && f <= 0xea) kanjiType = EKANJI;
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if ((f > 0xe8 || (f == 0xe8 && base >= 0x9f)) || (f > 0x90 || (f == 0x90 && base >= 0x9f))) {
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c = 48; //correction
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p = -8; //correction
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if ((f > 0xe8 || (f == 0xe8 && base >= 0x9f)) || (f > 0x90 || (f == 0x90 && base >= 0x9f))) {
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c = 48; //correction
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p = -8; //correction
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}
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if (kanjiType == KANA) {//Kana
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chunk_f = (f - 0x81) * 2;
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} else if (kanjiType == KANJI) {//Standard Kanji
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p += f - 0x88;
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chunk_f = c + 2 * p;
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} else if (kanjiType == EKANJI) {//Enhanced Kanji
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p += f - 0xe0;
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chunk_f = c + 2 * p;
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}
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// Base corrections
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if (base == 0x7f && s == 0x7f)
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base -= 0x20;
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if (base == 0x9f && s == 0xbe)
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base += 0x20;
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if (base == 0xbf && s == 0xde)
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base += 0x20;
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//if (base == 0x7f && s == 0x9e)
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// base += 0x20;
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switch (base) {
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case 0x3f:
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cr = 0; //3f
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if (kanjiType == KANA) chunk = 1;
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else if (kanjiType == KANJI) chunk = 31;
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else if (kanjiType == EKANJI) chunk = 111;
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break;
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case 0x5f:
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cr = 0; //5f
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if (kanjiType == KANA) chunk = 17;
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else if (kanjiType == KANJI) chunk = 47;
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else if (kanjiType == EKANJI) chunk = 127;
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break;
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case 0x7f:
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cr = -1; //80
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if (kanjiType == KANA) chunk = 9;
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else if (kanjiType == KANJI) chunk = 63;
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else if (kanjiType == EKANJI) chunk = 143;
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break;
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case 0x9f:
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cr = 1; //9e
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if (kanjiType == KANA) chunk = 2;
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else if (kanjiType == KANJI) chunk = 32;
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else if (kanjiType == EKANJI) chunk = 112;
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break;
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case 0xbf:
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cr = 1; //be
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if (kanjiType == KANA) chunk = 18;
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else if (kanjiType == KANJI) chunk = 48;
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else if (kanjiType == EKANJI) chunk = 128;
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break;
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case 0xdf:
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cr = 1; //de
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if (kanjiType == KANA) chunk = 10;
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else if (kanjiType == KANJI) chunk = 64;
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else if (kanjiType == EKANJI) chunk = 144;
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break;
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default:
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debug(4, "Invalid Char! f %x s %x base %x c %d p %d", f, s, base, c, p);
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}
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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);
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const int chunkNum = (((chunk_f + chunk) * 32 + (s - base)) + cr);
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if (chunkNum < 0 || chunkNum >= kFont16x16Chars)
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return 0;
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else
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return _fontData16x16 + chunkNum * 32;
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}
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if (kanjiType == KANA) {//Kana
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chunk_f = (f - 0x81) * 2;
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} else if (kanjiType == KANJI) {//Standard Kanji
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p += f - 0x88;
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chunk_f = c + 2 * p;
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} else if (kanjiType == EKANJI) {//Enhanced Kanji
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p += f - 0xe0;
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chunk_f = c + 2 * p;
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}
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// Base corrections
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if (base == 0x7f && s == 0x7f)
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base -= 0x20;
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if (base == 0x9f && s == 0xbe)
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base += 0x20;
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if (base == 0xbf && s == 0xde)
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base += 0x20;
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//if (base == 0x7f && s == 0x9e)
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// base += 0x20;
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switch (base) {
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case 0x3f:
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cr = 0; //3f
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if (kanjiType == KANA) chunk = 1;
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else if (kanjiType == KANJI) chunk = 31;
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else if (kanjiType == EKANJI) chunk = 111;
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break;
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case 0x5f:
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cr = 0; //5f
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if (kanjiType == KANA) chunk = 17;
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else if (kanjiType == KANJI) chunk = 47;
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else if (kanjiType == EKANJI) chunk = 127;
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break;
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case 0x7f:
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cr = -1; //80
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if (kanjiType == KANA) chunk = 9;
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else if (kanjiType == KANJI) chunk = 63;
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else if (kanjiType == EKANJI) chunk = 143;
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break;
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case 0x9f:
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cr = 1; //9e
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if (kanjiType == KANA) chunk = 2;
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else if (kanjiType == KANJI) chunk = 32;
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else if (kanjiType == EKANJI) chunk = 112;
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break;
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case 0xbf:
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cr = 1; //be
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if (kanjiType == KANA) chunk = 18;
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else if (kanjiType == KANJI) chunk = 48;
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else if (kanjiType == EKANJI) chunk = 128;
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break;
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case 0xdf:
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cr = 1; //de
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if (kanjiType == KANA) chunk = 10;
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else if (kanjiType == KANJI) chunk = 64;
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else if (kanjiType == EKANJI) chunk = 144;
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break;
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default:
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debug(4, "Invalid Char! f %x s %x base %x c %d p %d", f, s, base, c, p);
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}
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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);
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const int chunkNum = (((chunk_f + chunk) * 32 + (s - base)) + cr);
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if (chunkNum < 0 || chunkNum >= kFont16x16Chars)
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return 0;
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else
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return _fontData16x16 + chunkNum * 32;
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}
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const uint8 *FontTowns::getCharData8x16(uint16 c) const {
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if (c >= kFont8x16Chars)
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return 0;
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return _fontData8x16 + c * 16;
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}
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// ScummVM SJIS font
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FontSjisSVM::FontSjisSVM()
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: _fontData16x16(0), _fontData16x16Size(0), _fontData8x16(0), _fontData8x16Size(0) {
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}
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FontSjisSVM::~FontSjisSVM() {
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delete[] _fontData16x16;
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delete[] _fontData8x16;
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}
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bool FontSjisSVM::loadData() {
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Common::SeekableReadStream *data = SearchMan.createReadStreamForMember("SJIS.FNT");
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if (!data)
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@ -393,46 +443,40 @@ const uint8 *FontSjisSVM::getCharData(uint16 c) const {
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const uint8 fB = c & 0xFF;
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const uint8 sB = c >> 8;
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// We only allow 2 byte SJIS characters.
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if (fB <= 0x80 || fB >= 0xF0 || (fB >= 0xA0 && fB <= 0xDF) || sB == 0x7F)
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return 0;
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if (isASCII(c)) {
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int index = fB;
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int base = fB;
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base -= 0x81;
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if (base >= 0x5F)
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base -= 0x40;
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// half-width katakana
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if (fB >= 0xA1 && fB <= 0xDF)
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index -= 0x21;
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int index = sB;
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index -= 0x40;
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if (index >= 0x3F)
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--index;
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const uint offset = index * 16;
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assert(offset <= _fontData8x16Size);
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return _fontData8x16 + offset;
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} else {
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// We only allow 2 byte SJIS characters.
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if (fB <= 0x80 || fB >= 0xF0 || (fB >= 0xA0 && fB <= 0xDF) || sB == 0x7F)
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return 0;
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// Another check if the passed character was an
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// correctly encoded SJIS character.
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if (index < 0 || index >= 0xBC || base < 0)
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return 0;
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int base = fB;
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base -= 0x81;
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if (base >= 0x5F)
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base -= 0x40;
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const uint offset = (base * 0xBC + index) * 32;
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assert(offset + 16 <= _fontData16x16Size);
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return _fontData16x16 + offset;
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}
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int index = sB;
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index -= 0x40;
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if (index >= 0x3F)
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--index;
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const uint8 *FontSjisSVM::getCharData8x16(uint16 c) const {
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const uint8 fB = c & 0xFF;
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const uint8 sB = c >> 8;
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// Another check if the passed character was an
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// correctly encoded SJIS character.
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if (index < 0 || index >= 0xBC || base < 0)
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return 0;
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if (!is8x16(c) || sB)
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return 0;
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int index = fB;
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// half-width katakana
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if (fB >= 0xA1 && fB <= 0xDF)
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index -= 0x21;
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const uint offset = index * 16;
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assert(offset <= _fontData8x16Size);
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return _fontData8x16 + offset;
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const uint offset = (base * 0xBC + index) * 32;
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assert(offset + 16 <= _fontData16x16Size);
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return _fontData16x16 + offset;
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}
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}
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} // End of namespace Graphics
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@ -134,19 +134,19 @@ public:
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*/
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class FontSJISBase : public FontSJIS {
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public:
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FontSJISBase() : _drawMode(kDefaultMode), _flippedMode(false) {}
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FontSJISBase();
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void setDrawingMode(DrawingMode mode) { _drawMode = mode; }
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virtual void setDrawingMode(DrawingMode mode);
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void toggleFlippedMode(bool enable) { _flippedMode = enable; }
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virtual void toggleFlippedMode(bool enable);
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uint getFontHeight() const { return (_drawMode == kOutlineMode) ? 18 : (_drawMode == kDefaultMode ? 16 : 17); }
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virtual uint getFontHeight() const;
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uint getMaxFontWidth() const { return (_drawMode == kOutlineMode) ? 18 : (_drawMode == kDefaultMode ? 16 : 17); }
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virtual uint getMaxFontWidth() const;
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uint getCharWidth(uint16 ch) const;
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virtual uint getCharWidth(uint16 ch) const;
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void drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1, uint32 c2, int maxW = -1, int maxH = -1) const;
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virtual void drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1, uint32 c2, int maxW = -1, int maxH = -1) const;
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private:
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template<typename Color>
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void blitCharacter(const uint8 *glyph, const int w, const int h, uint8 *dst, int pitch, Color c) const;
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@ -162,10 +162,9 @@ protected:
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DrawingMode _drawMode;
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bool _flippedMode;
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bool is8x16(uint16 ch) const;
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bool isASCII(uint16 ch) const;
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virtual const uint8 *getCharData(uint16 c) const = 0;
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virtual const uint8 *getCharData8x16(uint16 c) const = 0;
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};
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/**
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@ -188,8 +187,7 @@ private:
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uint8 _fontData16x16[kFont16x16Chars * 32];
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uint8 _fontData8x16[kFont8x16Chars * 32];
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const uint8 *getCharData(uint16 c) const;
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const uint8 *getCharData8x16(uint16 c) const;
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virtual const uint8 *getCharData(uint16 c) const;
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};
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/**
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@ -197,8 +195,8 @@ private:
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*/
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class FontSjisSVM : public FontSJISBase {
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public:
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FontSjisSVM() : _fontData16x16(0), _fontData16x16Size(0), _fontData8x16(0), _fontData8x16Size(0) {}
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~FontSjisSVM() { delete[] _fontData16x16; delete[] _fontData8x16; }
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FontSjisSVM();
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~FontSjisSVM();
|
||||
|
||||
/**
|
||||
* Load the font data from "SJIS.FNT".
|
||||
@ -211,8 +209,7 @@ private:
|
||||
uint8 *_fontData8x16;
|
||||
uint _fontData8x16Size;
|
||||
|
||||
const uint8 *getCharData(uint16 c) const;
|
||||
const uint8 *getCharData8x16(uint16 c) const;
|
||||
virtual const uint8 *getCharData(uint16 c) const;
|
||||
};
|
||||
|
||||
// TODO: Consider adding support for PC98 ROM
|
||||
|
||||
Loading…
Reference in New Issue
Block a user