scummvm/engines/parallaction/font.cpp

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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 "common/stdafx.h"
#include "common/endian.h"
#include "common/stream.h"
#include "parallaction/parallaction.h"
namespace Parallaction {
extern byte _amigaTopazFont[];
class BraFont : public Font {
byte *_cp;
uint _bufPitch;
uint32 _height;
byte _numGlyphs;
byte *_widths;
uint *_offsets;
byte *_data;
static byte _charMap[];
byte mapChar(byte c) {
return _charMap[c];
}
public:
BraFont(Common::ReadStream &stream) {
_numGlyphs = stream.readByte();
_height = stream.readUint32BE();
_widths = (byte*)malloc(_numGlyphs);
stream.read(_widths, _numGlyphs);
_offsets = (uint*)malloc(_numGlyphs * sizeof(uint));
_offsets[0] = 0;
for (uint i = 1; i < _numGlyphs; i++)
_offsets[i] = _offsets[i-1] + _widths[i-1] * _height;
uint size = _offsets[_numGlyphs-1] + _widths[_numGlyphs-1] * _height;
_data = (byte*)malloc(size);
stream.read(_data, size);
}
~BraFont() {
free(_widths);
free(_offsets);
free(_data);
}
uint32 getStringWidth(const char *s) {
uint32 len = 0;
while (*s) {
byte c = mapChar(*s);
len += (_widths[c] + 2);
s++;
}
return len;
}
uint16 height() {
return (uint16)_height;
}
uint16 drawChar(char c) {
assert(c < _numGlyphs);
byte *src = _data + _offsets[c];
byte *dst = _cp;
uint16 w = _widths[c];
for (uint16 j = 0; j < height(); j++) {
for (uint16 k = 0; k < w; k++) {
if (*src) {
*dst = (_color) ? _color : *src;
}
dst++;
src++;
}
dst += (_bufPitch - w);
}
return w + 2;
}
void drawString(byte* buffer, uint32 pitch, const char *s) {
if (s == NULL)
return;
_bufPitch = pitch;
_cp = buffer;
while (*s) {
byte c = mapChar(*s);
_cp += drawChar(c);
s++;
}
}
};
byte BraFont::_charMap[] = {
// 0
0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34,
// 1
0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34,
// 2
0x34, 0x49, 0x48, 0x34, 0x34, 0x34, 0x34, 0x47, 0x34, 0x34, 0x34, 0x34, 0x40, 0x34, 0x3F, 0x34,
// 3
0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x46, 0x45, 0x34, 0x34, 0x34, 0x42,
// 4
0x34, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
// 5
0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x34, 0x34, 0x34, 0x34, 0x34,
// 6
0x34, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
// 7
0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x34, 0x34, 0x34, 0x34,
// 8
0x5E, 0x5D, 0x4E, 0x4B, 0x4D, 0x4C, 0x34, 0x5E, 0x4F, 0x51, 0x50, 0x34, 0x34, 0x34, 0x34, 0x34,
// 9
0x34, 0x34, 0x34, 0x57, 0x59, 0x58, 0x5B, 0x5C, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34,
// A
0x4A, 0x52, 0x34, 0x5A, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34,
// B
0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34,
// C
0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34,
// D
0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34,
// E
0x34, 0x5F, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34,
// F
0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34
};
class DosFont : public Font {
protected:
// drawing properties
byte *_cp;
Cnv *_data;
byte _pitch;
uint32 _bufPitch;
protected:
virtual uint16 drawChar(char c) = 0;
virtual uint16 width(byte c) = 0;
virtual uint16 height() = 0;
byte mapChar(byte c) {
if (c == 0xA5) return 0x5F;
if (c == 0xDF) return 0x60;
if (c > 0x7F) return c - 0x7F;
return c - 0x20;
}
public:
DosFont(Cnv *cnv) : _data(cnv), _pitch(cnv->_width) {
}
~DosFont() {
if (_data)
delete _data;
}
void setData() {
}
uint32 getStringWidth(const char *s) {
uint32 len = 0;
while (*s) {
byte c = mapChar(*s);
len += width(c);
s++;
}
return len;
}
void drawString(byte* buffer, uint32 pitch, const char *s) {
if (s == NULL)
return;
_bufPitch = pitch;
_cp = buffer;
while (*s) {
byte c = mapChar(*s);
_cp += drawChar(c);
s++;
}
}
};
class DosDialogueFont : public DosFont {
private:
static const byte _glyphWidths[126];
protected:
uint16 width(byte c) {
return _glyphWidths[c];
}
uint16 height() {
return _data->_height;
}
public:
DosDialogueFont(Cnv *cnv) : DosFont(cnv) {
}
protected:
uint16 drawChar(char c) {
byte *src = _data->getFramePtr(c);
byte *dst = _cp;
uint16 w = width(c);
for (uint16 j = 0; j < height(); j++) {
for (uint16 k = 0; k < w; k++) {
if (!*src)
*dst = _color;
dst++;
src++;
}
src += (_pitch - w);
dst += (_bufPitch - w);
}
return w;
}
};
const byte DosDialogueFont::_glyphWidths[126] = {
0x04, 0x03, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x04, 0x04, 0x06, 0x06, 0x03, 0x05, 0x03, 0x05,
0x06, 0x06, 0x06, 0x06, 0x07, 0x06, 0x06, 0x06, 0x06, 0x06, 0x03, 0x03, 0x05, 0x04, 0x05, 0x05,
0x03, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x03, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x08, 0x07, 0x07, 0x07, 0x05, 0x06, 0x05, 0x08, 0x07,
0x04, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x03, 0x04, 0x05, 0x05, 0x06, 0x06, 0x05,
0x05, 0x06, 0x05, 0x05, 0x05, 0x05, 0x06, 0x07, 0x05, 0x05, 0x05, 0x05, 0x02, 0x05, 0x05, 0x07,
0x08, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x04, 0x04, 0x04,
0x05, 0x06, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x04, 0x06, 0x05, 0x05, 0x05, 0x05
};
class DosMonospacedFont : public DosFont {
protected:
uint16 _width;
protected:
uint16 width(byte c) {
return _width;
}
uint16 height() {
return _data->_height;
}
public:
DosMonospacedFont(Cnv *cnv) : DosFont(cnv) {
_width = 8;
}
};
class DosMenuFont : public DosMonospacedFont {
public:
DosMenuFont(Cnv *cnv) : DosMonospacedFont(cnv) {
}
protected:
uint16 drawChar(char c) {
byte *src = _data->getFramePtr(c);
byte *dst = _cp;
for (uint16 i = 0; i < height(); i++) {
for (uint16 j = 0; j < _width; j++) {
if (*src)
*dst = *src;
src++;
dst++;
}
dst += (_bufPitch - _width);
src += (_pitch - _width);
}
return _width;
}
};
class DosLabelFont : public DosMonospacedFont {
public:
DosLabelFont(Cnv *cnv) : DosMonospacedFont(cnv) {
}
protected:
uint16 drawChar(char c) {
byte *src = _data->getFramePtr(c);
byte *dst = _cp;
for (uint16 i = 0; i < height(); i++) {
memcpy(dst, src, _width);
dst += _bufPitch;
src += _pitch;
}
return _width;
}
};
class AmigaFont : public Font {
#include "common/pack-start.h"
struct CharLoc {
uint16 _offset;
uint16 _length;
};
struct AmigaDiskFont {
uint16 _ySize;
byte _style;
byte _flags;
uint16 _xSize;
uint16 _baseline;
uint16 _boldSmear;
uint16 _accessors; // unused
byte _loChar;
byte _hiChar;
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uint32 _charData;
uint16 _modulo;
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uint32 _charLoc;
uint32 _charSpace;
uint32 _charKern;
};
#include "common/pack-end.h"
AmigaDiskFont *_font;
uint32 _dataSize;
byte *_data;
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byte *_charData;
CharLoc *_charLoc;
uint16 *_charSpace;
uint16 *_charKern;
byte *_cp;
uint32 _pitch;
protected:
uint16 getSpacing(byte c);
void blitData(byte c);
uint16 getKerning(byte c);
uint16 getPixels(byte c);
uint16 getOffset(byte c);
uint16 width(byte c);
uint16 height();
byte mapChar(byte c);
public:
AmigaFont(Common::SeekableReadStream &stream);
~AmigaFont();
uint32 getStringWidth(const char *s);
void drawString(byte *buf, uint32 pitch, const char *s);
};
AmigaFont::AmigaFont(Common::SeekableReadStream &stream) {
stream.seek(32); // skips dummy header
_dataSize = stream.size() - stream.pos();
_data = (byte*)malloc(_dataSize);
stream.read(_data, _dataSize);
_font = (AmigaDiskFont*)(_data + 78);
_font->_ySize = FROM_BE_16(_font->_ySize);
_font->_xSize = FROM_BE_16(_font->_xSize);
_font->_baseline = FROM_BE_16(_font->_baseline);
_font->_modulo = FROM_BE_16(_font->_modulo);
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_charLoc = (CharLoc*)(_data + FROM_BE_32(_font->_charLoc));
_charData = _data + FROM_BE_32(_font->_charData);
_charSpace = 0;
_charKern = 0;
if (_font->_charSpace != 0)
_charSpace = (uint16*)(_data + FROM_BE_32(_font->_charSpace));
if (_font->_charKern != 0)
_charKern = (uint16*)(_data + FROM_BE_32(_font->_charKern));
}
AmigaFont::~AmigaFont() {
if (_data)
free(_data);
}
uint16 AmigaFont::getSpacing(byte c) {
return (_charSpace == 0) ? _font->_xSize : FROM_BE_16(_charSpace[c]);
}
uint16 AmigaFont::getKerning(byte c) {
return (_charKern == 0) ? 0 : FROM_BE_16(_charKern[c]);
}
uint16 AmigaFont::getPixels(byte c) {
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return FROM_BE_16(_charLoc[c]._length);
}
uint16 AmigaFont::getOffset(byte c) {
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return FROM_BE_16(_charLoc[c]._offset);
}
void AmigaFont::blitData(byte c) {
int num = getPixels(c);
int bitOffset = getOffset(c);
byte *d = _cp;
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byte *s = _charData;
for (int i = 0; i < _font->_ySize; i++) {
for (int j = bitOffset; j < bitOffset + num; j++) {
byte *b = s + (j >> 3);
byte bit = *b & (0x80 >> (j & 7));
if (bit)
*d = _color;
d++;
}
s += _font->_modulo;
d += _pitch - num;
}
}
uint16 AmigaFont::width(byte c) {
// printf("kern(%i) = %i, space(%i) = %i\t", c, getKerning(c), c, getSpacing(c));
return getKerning(c) + getSpacing(c);
}
uint16 AmigaFont::height() {
return _font->_ySize;
}
byte AmigaFont::mapChar(byte c) {
if (c < _font->_loChar || c > _font->_hiChar)
error("character '%c (%x)' not supported by font", c, c);
return c - _font->_loChar;
}
uint32 AmigaFont::getStringWidth(const char *s) {
uint32 len = 0;
while (*s) {
byte c = mapChar(*s);
len += width(c);
s++;
}
return len;
}
void AmigaFont::drawString(byte *buffer, uint32 pitch, const char *s) {
_cp = buffer;
_pitch = pitch;
byte c;
while (*s) {
c = mapChar(*s);
_cp += getKerning(c);
blitData(c);
_cp += getSpacing(c);
s++;
}
}
Font *DosDisk_ns::createFont(const char *name, Cnv* cnv) {
Font *f = 0;
if (!scumm_stricmp(name, "comic"))
f = new DosDialogueFont(cnv);
else
if (!scumm_stricmp(name, "topaz"))
f = new DosLabelFont(cnv);
else
if (!scumm_stricmp(name, "slide"))
f = new DosMenuFont(cnv);
else
error("unknown dos font '%s'", name);
return f;
}
Font *AmigaDisk_ns::createFont(const char *name, Common::SeekableReadStream &stream) {
// TODO: implement AmigaLabelFont for labels
return new AmigaFont(stream);
}
Font *DosDisk_br::createFont(const char *name, Common::ReadStream &stream) {
// printf("DosDisk_br::createFont(%s)\n", name);
return new BraFont(stream);
}
void Parallaction_ns::initFonts() {
if (getPlatform() == Common::kPlatformPC) {
_dialogueFont = _disk->loadFont("comic");
_labelFont = _disk->loadFont("topaz");
_menuFont = _disk->loadFont("slide");
} else {
_dialogueFont = _disk->loadFont("comic");
Common::MemoryReadStream stream(_amigaTopazFont, 2600, false);
_labelFont = new AmigaFont(stream);
_menuFont = _disk->loadFont("slide");
}
}
}