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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 "sci/sci.h"
#include "sci/engine/state.h"
#include "sci/graphics/screen.h"
#include "sci/graphics/font.h"
namespace Sci {
GfxFontFromResource::GfxFontFromResource(ResourceManager *resMan, GfxScreen *screen, GuiResourceId resourceId)
: _resourceId(resourceId), _screen(screen), _resMan(resMan) {
assert(resourceId != -1);
// Workaround: lsl1sci mixes its own internal fonts with the global
// SCI ones, so we translate them here, by removing their extra bits
if (!resMan->testResource(ResourceId(kResourceTypeFont, resourceId)))
resourceId = resourceId & 0x7ff;
_resource = resMan->findResource(ResourceId(kResourceTypeFont, resourceId), true);
if (!_resource) {
error("font resource %d not found", resourceId);
}
_resourceData = _resource->data;
_numChars = READ_LE_UINT16(_resourceData + 2);
_fontHeight = READ_LE_UINT16(_resourceData + 4);
_chars = new Charinfo[_numChars];
// filling info for every char
for (int16 i = 0; i < _numChars; i++) {
_chars[i].offset = READ_LE_UINT16(_resourceData + 6 + i * 2);
_chars[i].w = _resourceData[_chars[i].offset];
_chars[i].h = _resourceData[_chars[i].offset + 1];
}
}
GfxFontFromResource::~GfxFontFromResource() {
delete []_chars;
_resMan->unlockResource(_resource);
}
GuiResourceId GfxFontFromResource::getResourceId() {
return _resourceId;
}
byte GfxFontFromResource::getHeight() {
return _fontHeight;
}
byte GfxFontFromResource::getCharWidth(uint16 chr) {
return chr < _numChars ? _chars[chr].w : 0;
}
byte GfxFontFromResource::getCharHeight(uint16 chr) {
return chr < _numChars ? _chars[chr].h : 0;
}
byte *GfxFontFromResource::getCharData(uint16 chr) {
return chr < _numChars ? _resourceData + _chars[chr].offset + 2 : 0;
}
void GfxFontFromResource::draw(uint16 chr, int16 top, int16 left, byte color, bool greyedOutput) {
int charWidth = MIN<int>(getCharWidth(chr), _screen->getWidth() - left);
int charHeight = MIN<int>(getCharHeight(chr), _screen->getHeight() - top);
byte b = 0, mask = 0xFF;
int y = 0;
int16 greyedTop = top;
byte *pIn = getCharData(chr);
for (int i = 0; i < charHeight; i++, y++) {
if (greyedOutput)
mask = greyedTop++ % 2 ? 0xAA : 0x55;
for (int done = 0; done < charWidth; done++) {
if ((done & 7) == 0) // fetching next data byte
b = *(pIn++) & mask;
if (b & 0x80) // if MSB is set - paint it
_screen->putFontPixel(top, left + done, y, color);
b = b << 1;
}
}
}
} // End of namespace Sci
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