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Diffstat (limited to 'engines/sci/graphics/font.cpp')
-rw-r--r-- | engines/sci/graphics/font.cpp | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/engines/sci/graphics/font.cpp b/engines/sci/graphics/font.cpp new file mode 100644 index 0000000000..6b20899c26 --- /dev/null +++ b/engines/sci/graphics/font.cpp @@ -0,0 +1,101 @@ +/* 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 { + +Font::Font(ResourceManager *resMan, GuiResourceId resourceId) + : _resourceId(resourceId), _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]; + } +} + +Font::~Font() { + delete []_chars; + _resMan->unlockResource(_resource); +} + +GuiResourceId Font::getResourceId() { + return _resourceId; +} + +byte Font::getHeight() { + return _fontHeight; +} +byte Font::getCharWidth(byte chr) { + return chr < _numChars ? _chars[chr].w : 0; +} +byte Font::getCharHeight(byte chr) { + return chr < _numChars ? _chars[chr].h : 0; +} +byte *Font::getCharData(byte chr) { + return chr < _numChars ? _resourceData + _chars[chr].offset + 2 : 0; +} + +void Font::draw(Screen *screen, int16 chr, int16 top, int16 left, byte color, bool greyedOutput) { + int charWidth = MIN<int>(getCharWidth(chr), screen->_width - left); + int charHeight = MIN<int>(getCharHeight(chr), 200 - top); + byte b = 0, mask = 0xFF; + int y = top; + + byte *pIn = getCharData(chr); + for (int i = 0; i < charHeight; i++, y++) { + if (greyedOutput) + mask = top++ % 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->putPixel(left + done, y, 1, color, 0, 0); + b = b << 1; + } + } +} + +} // End of namespace Sci |