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82 lines
2.2 KiB
C++
82 lines
2.2 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*/
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#include "teenagent/surface.h"
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#include "teenagent/surface_list.h"
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namespace TeenAgent {
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SurfaceList::SurfaceList() : surfaces(NULL) {}
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void SurfaceList::load(Common::SeekableReadStream *stream, Type type, int sub_hack) {
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free();
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byte fn = stream->readByte();
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if (stream->eos())
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return;
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surfaces_n = fn - sub_hack;
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debug(0, "loading %u surfaces from list (skip %d)", surfaces_n, sub_hack);
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if (surfaces_n == 0)
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return;
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surfaces = new Surface[surfaces_n];
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byte i;
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for (i = 0; i < surfaces_n; ++i) {
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uint offset = stream->readUint16LE();
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uint pos = stream->pos();
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stream->seek(offset);
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surfaces[i].load(stream, Surface::kTypeOns);
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stream->seek(pos);
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}
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//for(; i < fn; ++i)
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// debug(0, "*hack* skipping flag %04x", stream->readUint16LE());
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}
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void SurfaceList::free() {
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delete[] surfaces;
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surfaces = NULL;
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surfaces_n = 0;
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}
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Common::Rect SurfaceList::render(Graphics::Surface *surface, int horizon, bool second_pass) const {
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Common::Rect dirty;
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for(uint i = 0; i < surfaces_n; ++i) {
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const Surface &s = surfaces[i];
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if (second_pass) {
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debug(0, "%d %d", s.y + s.h, horizon);
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if (s.y + s.h > horizon)
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dirty.extend(s.render(surface));
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} else {
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if (s.y + s.h <= horizon)
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dirty.extend(s.render(surface));
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}
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}
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return dirty;
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}
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}
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