50 lines
1.5 KiB
C++
50 lines
1.5 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 "mm/mm1/gfx/dta.h"
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#include "mm/mm1/gfx/screen_decoder.h"
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namespace MM {
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namespace MM1 {
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namespace Gfx {
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Common::SeekableReadStream *DTA::load(uint entryIndex) {
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Common::File f;
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if (!f.open(_fname))
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error("Could not open - %s", _fname.toString().c_str());
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uint indexSize = f.readUint16LE();
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assert(entryIndex < (indexSize / 4));
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f.seek(entryIndex * 4, SEEK_CUR);
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size_t entryOffset = f.readUint32LE();
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size_t nextOffset = (entryIndex == (indexSize / 4 - 1)) ?
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f.size() : f.readUint32LE();
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f.seek(2 + indexSize + entryOffset);
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return f.readStream(nextOffset - entryOffset);
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}
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} // namespace Gfx
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} // namespace MM1
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} // namespace MM
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