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https://github.com/libretro/scummvm.git
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107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "common/file.h"
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#include "common/rect.h"
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#include "chewy/font.h"
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namespace Chewy {
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ChewyFont::ChewyFont(Common::String filename) {
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const uint32 headerFont = MKTAG('T', 'F', 'F', '\0');
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Common::File stream;
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stream.open(filename);
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uint32 header = stream.readUint32BE();
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if (header != headerFont)
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error("Invalid resource - %s", filename.c_str());
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stream.skip(4); // total memory
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_count = stream.readUint16LE();
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_first = stream.readUint16LE();
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_last = stream.readUint16LE();
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_deltaX = _dataWidth = stream.readUint16LE();
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_dataHeight = stream.readUint16LE();
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_displayWidth = _dataWidth;
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_displayHeight = _dataHeight;
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_fontSurface.create(_dataWidth * _count, _dataHeight, Graphics::PixelFormat::createFormatCLUT8());
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int bitIndex = 7;
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byte curr = stream.readByte();
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for (uint n = 0; n < _count; n++) {
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for (uint y = 0; y < _dataHeight; y++) {
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byte *p = (byte *)_fontSurface.getBasePtr(n * _dataWidth, y);
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for (uint x = n * _dataWidth; x < n * _dataWidth + _dataWidth; x++) {
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*p++ = (curr & (1 << bitIndex)) ? 0 : 0xFF;
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bitIndex--;
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if (bitIndex < 0) {
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bitIndex = 7;
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curr = stream.readByte();
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}
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}
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}
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}
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}
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ChewyFont::~ChewyFont() {
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_fontSurface.free();
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}
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void ChewyFont::setDisplaySize(uint16 width, uint16 height) {
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_displayWidth = width;
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_displayHeight = height;
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}
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void ChewyFont::setDeltaX(uint16 deltaX) {
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_deltaX = deltaX;
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}
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Graphics::Surface *ChewyFont::getLine(const Common::String &texts) {
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Graphics::Surface *line = new Graphics::Surface();
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if (texts.size() == 0)
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return line;
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Common::Rect subrect(0, 0, _dataWidth, _dataHeight);
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line->create(texts.size() * _deltaX, _dataHeight, Graphics::PixelFormat::createFormatCLUT8());
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line->fillRect(Common::Rect(line->w, line->h), 0xFF);
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for (uint i = 0; i < texts.size(); i++) {
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subrect.moveTo(((byte)texts[i] - _first) * _dataWidth, 0);
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line->copyRectToSurface(_fontSurface, i * (_deltaX - 2), 0, subrect);
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}
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return line;
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}
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Graphics::Surface *FontMgr::getLine(const Common::String &texts) {
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return _font->getLine(texts);
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}
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} // namespace Chewy
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