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