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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.
*
* $URL$
* $Id$
*/
// The code in this file is currently only used in KYRA and SCI.
// So if neither of those is enabled, we will skip compiling it.
// We also enable this code for ScummVM builds including support
// for dynamic engine plugins.
// If you plan to use this code in another engine, you will have
// to add the proper define check here.
#if !(defined(ENABLE_KYRA) || defined(ENABLE_SCI) || defined(DYNAMIC_MODULES))
// If neither of the above mentioned is enabled, do not include the SJIS code.
#else
#ifndef GRAPHICS_SJIS_H
#define GRAPHICS_SJIS_H
#include "common/scummsys.h"
#include "common/stream.h"
#include "common/util.h"
#include "graphics/surface.h"
namespace Graphics {
/**
* A font that is able to draw SJIS encoded characters.
*/
class FontSJIS {
public:
virtual ~FontSJIS() {}
/**
* Creates the first SJIS font, which ROM/font file is present.
* It will also call loadData, so the user can just start
* using the font.
*
* It'll prefer the platform specific ROM file, when platform
* is set to a value, which's font ROM is supported.
* So far that is only kPlatformFMTowns.
*
* The last file tried is ScummVM's SJIS.FNT file.
*/
static FontSJIS *createFont(const Common::Platform platform = Common::kPlatformUnknown);
/**
* Load the font data.
*/
virtual bool loadData() = 0;
/**
* Enable outline drawing.
*
* After changing outline state, getFontHeight and getMaxFontWidth / getCharWidth might return
* different values!
*/
virtual void enableOutline(bool enable) {}
/**
* Returns the height of the font.
*/
virtual uint getFontHeight() const = 0;
/**
* Returns the max. width of the font.
*/
virtual uint getMaxFontWidth() const = 0;
/**
* Returns the width of a specific character.
*/
virtual uint getCharWidth(uint16 ch) const { return getMaxFontWidth(); }
/**
* Draws a SJIS encoded character on the given surface.
*
* TODO: Currently there is no assurance, that this method will only draw within
* the surface boundaries. Thus the caller has to assure the glyph will fit at
* the specified position.
*/
void drawChar(Graphics::Surface &dst, uint16 ch, int x, int y, uint32 c1, uint32 c2) const {
drawChar(dst.getBasePtr(x, y), ch, c1, c2, dst.pitch, dst.bytesPerPixel);
}
/**
* Draws a SJIS char on the given raw buffer.
*
* @param dst pointer to the destination
* @param ch character to draw (in little endian)
* @param pitch pitch of the destination buffer (size in *bytes*)
* @param bpp bytes per pixel of the destination buffer
* @param c1 forground color
* @param c2 outline color
*/
virtual void drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1, uint32 c2) const = 0;
};
/**
* A base class to render 16x16 monochrome SJIS fonts.
*/
class FontSJIS16x16 : public FontSJIS {
public:
FontSJIS16x16() : _outlineEnabled(false) {}
void enableOutline(bool enable) { _outlineEnabled = enable; }
uint getFontHeight() const { return _outlineEnabled ? 18 : 16; }
uint getMaxFontWidth() const { return _outlineEnabled ? 18 : 16; }
virtual void drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1, uint32 c2) const;
private:
template<typename Color>
void drawCharInternOutline(const uint16 *glyph, uint8 *dst, int pitch, Color c1, Color c2) const;
template<typename Color>
void drawCharIntern(const uint16 *glyph, uint8 *dst, int pitch, Color c1) const;
protected:
bool _outlineEnabled;
virtual const uint16 *getCharData(uint16 c) const = 0;
};
/**
* FM-TOWNS ROM based SJIS compatible font.
*
* This is used in KYRA and SCI.
*
* TODO: This implementation does not support any 8x16 ASCII or half-width katakana chars.
*/
class FontTowns : public FontSJIS16x16 {
public:
/**
* Loads the ROM data from "FMT_FNT.ROM".
*/
bool loadData();
private:
enum {
kFontRomSize = 262144
};
uint16 _fontData[kFontRomSize / 2];
const uint16 *getCharData(uint16 c) const;
};
/**
* Our custom SJIS FNT.
*/
class FontSjisSVM : public FontSJIS16x16 {
public:
FontSjisSVM() : _fontData16x16(0), _fontData16x16Size(0), _fontData8x16(0), _fontData8x16Size(0) {}
~FontSjisSVM() { delete[] _fontData16x16; delete[] _fontData8x16; }
/**
* Load the font data from "SJIS.FNT".
*/
bool loadData();
void drawChar(void *dst, uint16 ch, int pitch, int bpp, uint32 c1, uint32 c2) const;
uint getCharWidth(uint16 ch) const;
private:
uint16 *_fontData16x16;
uint _fontData16x16Size;
uint8 *_fontData8x16;
uint _fontData8x16Size;
bool is8x16(uint16 ch) const;
const uint16 *getCharData(uint16 c) const;
const uint8 *getCharData8x16(uint16 c) const;
template<typename Color>
void drawCharInternOutline(const uint8 *glyph, uint8 *dst, int pitch, Color c1, Color c2) const;
template<typename Color>
void drawCharIntern(const uint8 *glyph, uint8 *dst, int pitch, Color c1) const;
};
// TODO: Consider adding support for PC98 ROM
} // end of namespace Graphics
#endif
#endif // engine and dynamic plugins guard
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