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/* ScummVM - Kyrandia Interpreter
* Copyright (C) 2003-2005 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include "stdafx.h"
#include "resource.h"
#include "common/stream.h"
#include "common/array.h"
#ifdef DUMP_FILES
#include <cstdio>
#endif
namespace Kyra {
const uint16 FontHeader_Magic1 = 0x0500;
const uint16 FontHeader_Magic2 = 0x000e;
const uint16 FontHeader_Magic3 = 0x0014;
Font::Font(uint8* buffer, uint32 size) {
if (!buffer) {
error("resource created without data");
}
_buffer = buffer;
Common::MemoryReadStream bufferstream(buffer, size);
bufferstream.read(&_fontHeader, sizeof(_fontHeader));
// tests for the magic values
if(_fontHeader._magic1 != FontHeader_Magic1 || _fontHeader._magic2 != FontHeader_Magic2 ||
_fontHeader._magic3 != FontHeader_Magic3) {
error("magic vars in the fontheader are corrupt\n"
"_magic1 = 0x%x, _magic2 = 0x%x, _magic3 = 0x%x",
_fontHeader._magic1, _fontHeader._magic2, _fontHeader._magic3);
}
// init all the pointers
_offsetTable = (uint16*)&buffer[bufferstream.pos()];
_charWidth = &buffer[_fontHeader._charWidthOffset];
_charHeight = (uint16*)&buffer[_fontHeader._charHeightOffset];
_charBits = &buffer[_fontHeader._charBitsOffset];
// now prerender =)
preRenderAllChars(bufferstream.pos());
// This value seems to be a version or language variable
// Known Values
// ------------
// Russian Floppy: 0x1010
// German Floppy and English/German CD: 0x1011
debug("Font::_version = 0x%x", _fontHeader._version);
delete [] _buffer;
_buffer = 0;
_offsetTable = 0;
_charHeight = 0;
_charWidth = 0;
_charBits = 0;
}
Font::~Font() {
// FIXME: Release memory of the prerendered chars
}
uint32 Font::getStringWidth(const char* string, char terminator) {
uint32 strsize;
for (strsize = 0; string[strsize] != terminator && string[strsize] != '\0'; ++strsize)
;
uint32 stringwidth = 0;
for (uint32 pos = 0; pos < strsize; ++pos) {
stringwidth += _preRenderedChars[string[pos]].width;
}
return stringwidth;
}
const uint8* Font::getChar(char c, uint8* width, uint8* height, uint8* heightadd) {
PreRenderedChar& c_ = _preRenderedChars[c];
*width = c_.width;
*height = c_.height;
*heightadd = c_.heightadd;
return c_.c;
}
// splits up the String in a word
const char* Font::getNextWord(const char* string, uint32* size) {
uint32 startpos = 0;
*size = 0;
// gets start of the word
for (; string[startpos] == ' '; ++startpos)
;
// not counting size
for (*size = 0; string[startpos + *size] != ' ' && string[startpos + *size] != '\0'; ++(*size))
;
++(*size);
return &string[startpos];
}
// Move this to Font declaration?
struct WordChunk {
const char* _string;
uint32 _size;
};
void Font::drawStringToPlane(const char* string,
uint8* plane, uint16 planewidth, uint16 planeheight,
uint16 x, uint16 y, uint8 color) {
// lets do it word after word
Common::Array<WordChunk> words;
uint32 lastPos = 0;
uint32 lastSize = 0;
uint32 strlgt = strlen(string);
while (true) {
WordChunk newchunk;
newchunk._string = getNextWord(&string[lastPos], &lastSize);
newchunk._size = lastSize;
lastPos += lastSize;
words.push_back(newchunk);
if (lastPos >= strlgt)
break;
}
uint16 current_x = x, current_y = y;
uint8 heighest = 0;
const uint8* src = 0;
uint8 width = 0, height = 0, heightadd = 0;
// now the have alle of these words
for (uint32 tmp = 0; tmp < words.size(); ++tmp) {
lastSize = getStringWidth(words[tmp]._string, ' ');
// adjust x position
if (current_x + lastSize >= planewidth) {
// hmm lets move it a bit to the left
if (current_x == x && (int16)planewidth - (int16)lastSize >= 0) {
current_x = planewidth - lastSize;
} else {
current_x = x;
if (heighest)
current_y += heighest + 2;
else // now we are using just the fist char :)
current_y += _preRenderedChars[words[tmp]._string[0]].height;
heighest = 0;
}
}
// TODO: maybe test if current_y >= planeheight ?
// output word :)
for (lastPos = 0; lastPos < words[tmp]._size; ++lastPos) {
if (words[tmp]._string[lastPos] == '\0')
break;
// gets our char :)
src = getChar(words[tmp]._string[lastPos], &width, &height, &heightadd);
// lets draw our char
drawCharToPlane(src, color, width, height, plane, planewidth, planeheight, current_x, current_y + heightadd);
current_x += width;
heighest = MAX(heighest, height);
}
}
}
void Font::drawCharToPlane(const uint8* c, uint8 color, uint8 width, uint8 height,
uint8* plane, uint16 planewidth, uint16 planeheight, uint16 x, uint16 y) {
const uint8* src = c;
// blit them to the screen
for (uint8 yadd = 0; yadd < height; ++yadd) {
for (uint8 xadd = 0; xadd < width; ++xadd) {
switch(*src) {
case 1:
plane[(y + yadd) * planewidth + x + xadd] = color;
break;
case 2:
plane[(y + yadd) * planewidth + x + xadd] = 14;
break;
case 3:
plane[(y + yadd) * planewidth + x + xadd] = 0;
break;
default:
// nothing to do now
break;
};
++src;
}
}
}
void Font::preRenderAllChars(uint16 offsetTableOffset) {
uint16 startOffset = _offsetTable[0];
uint16 currentOffset = offsetTableOffset;
uint8 currentChar = 0;
for (; currentOffset < startOffset; ++currentChar, currentOffset += sizeof(uint16)) {
// lets prerender the char :)
PreRenderedChar newChar;
newChar.c = new uint8[(_charHeight[currentChar] >> 8) * _charWidth[currentChar]];
assert(newChar.c);
memset(newChar.c, 0, sizeof(uint8) * (_charHeight[currentChar] >> 8) * _charWidth[currentChar]);
newChar.height = (_charHeight[currentChar] >> 8);
newChar.width = _charWidth[currentChar];
newChar.heightadd = _charHeight[currentChar] & 0xFF;
uint8* src = _buffer + _offsetTable[currentChar];
uint8* dst = &newChar.c[0];
uint8 index = 0;
#ifdef DUMP_FILES
static char filename[32] = { 0 };
sprintf(filename, "dumps/char%d.dmp", currentChar);
FILE* dump = fopen(filename, "w+");
assert(dump);
fprintf(dump, "This should be a '%c'\n", currentChar);
#endif
// prerender the char
for (uint8 yadd = 0; yadd < newChar.height; ++yadd) {
for (uint8 xadd = 0; xadd < newChar.width; ++xadd) {
if (xadd % 2) {
index = ((*src) & 0xF0) >> 4;
++src;
} else {
index = (*src) & 0x0F;
}
switch(index) {
case 1:
#ifdef DUMP_FILES
fprintf(dump, "#");
#endif
dst[yadd * newChar.width + xadd] = 1;
break;
case 2:
#ifdef DUMP_FILES
fprintf(dump, "$");
#endif
dst[yadd * newChar.width + xadd] = 2;
break;
case 3:
#ifdef DUMP_FILES
fprintf(dump, "�");
#endif
dst[yadd * newChar.width + xadd] = 3;
break;
default:
#ifdef DUMP_FILES
fprintf(dump, "%d", index);
#endif
break;
};
}
if (newChar.width % 2) {
++src;
}
#ifdef DUMP_FILES
fprintf(dump, "\n");
#endif
}
#ifdef DUMP_FILES
fprintf(dump, "\nThis is the created map:\n");
// now print the whole thing again
for (uint8 yadd = 0; yadd < newChar.height; ++yadd) {
for (uint8 xadd = 0; xadd < newChar.width; ++xadd) {
fprintf(dump, "%d", dst[yadd * newChar.width + xadd]);
}
fprintf(dump, "\n");
}
fclose(dump);
#endif
_preRenderedChars[currentChar] = newChar;
if (currentChar == 255) {
break;
}
}
}
} // end of namespace Kyra
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