130 lines
2.9 KiB
C++
130 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/memstream.h"
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#include "common/stream.h"
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#include "common/textconsole.h"
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#include "qdengine/qd_fwd.h"
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#include "qdengine/system/graphics/gr_dispatcher.h"
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#include "qdengine/system/graphics/gr_font.h"
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#include "qdengine/qdcore/qd_file_manager.h"
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namespace QDEngine {
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grFont::grFont() : _alpha_buffer(NULL) {
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_size_x = _size_y = 0;
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_alpha_buffer_sx = _alpha_buffer_sy = 0;
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_chars.reserve(256);
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}
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grFont::~grFont() {
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delete[] _alpha_buffer;
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}
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bool grFont::load(const Common::Path &fname) {
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Common::String str(fname.toString());
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str += ".tga";
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Common::File file;
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file.open(Common::Path(str));
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if (load_alpha(&file)) {
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str = fname.toString();
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str += ".idx";
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file.open(Common::Path(str));
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if (load_index(&file))
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return true;
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}
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return false;
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}
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bool grFont::load_index(Common::SeekableReadStream *fh) {
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Common::String buf = fh->readString();
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char *pos = buf.begin();
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int num_ch, sx, sy;
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sx = strtol(pos, &pos, 0);
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sy = strtol(pos, &pos, 0);
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num_ch = strtol(pos, &pos, 0);
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grFontChar chr;
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for (int i = 0; i < num_ch; i++) {
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int x, y;
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chr._code = strtol(pos, &pos, 0);
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x = strtol(pos, &pos, 0);
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y = strtol(pos, &pos, 0);
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sx = strtol(pos, &pos, 0);
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sy = strtol(pos, &pos, 0);
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chr._region = grScreenRegion(x, y, sx, sy);
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_chars.push_back(chr);
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if (sx > _size_x) _size_x = sx;
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if (sy > _size_y) _size_y = sy;
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};
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return true;
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}
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bool grFont::load_alpha(Common::SeekableReadStream *fh) {
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byte header[18];
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fh->read(header, 18);
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if (header[0])
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return false;
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if (header[1])
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return false;
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if (header[2] != 2 && header[2] != 3)
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return false;
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int sx = _alpha_buffer_sx = header[12] + (header[13] << 8);
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int sy = _alpha_buffer_sy = header[14] + (header[15] << 8);
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int colors = header[16];
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int flags = header[17];
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int ssx = sx * colors / 8;
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_alpha_buffer = new byte[ssx * sy];
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if (!(flags & 0x20)) {
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int idx = (sy - 1) * ssx;
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for (int i = 0; i < sy; i++) {
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fh->read(_alpha_buffer + idx, ssx);
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idx -= ssx;
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}
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} else
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fh->read(_alpha_buffer, ssx * sy);
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return true;
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}
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} // namespace QDEngine
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