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75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
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/* ScummVM - Scumm Interpreter
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* Copyright (C) 2004 Ivan Dubrov
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* Copyright (C) 2004-2006 The ScummVM project
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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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* 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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* 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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*/
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#include "common/stdafx.h"
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#include "common/endian.h"
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#include "gob/gob.h"
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#include "gob/video.h"
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namespace Gob {
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Video_v2::Video_v2(GobEngine *vm) : Video_v1(vm) {
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}
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void Video_v2::drawLetter(int16 item, int16 x, int16 y, FontDesc *fontDesc, int16 color1,
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int16 color2, int16 transp, SurfaceDesc *dest) {
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int16 videoMode;
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videoMode = dest->vidMode;
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// Is that needed at all? And what does it do anyway?
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char *dataPtr;
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int16 itemSize;
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int16 si;
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int16 di;
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int16 dx;
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char *var_A;
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int16 var_10;
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if (fontDesc->endItem == 0) {
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itemSize = fontDesc->itemSize + 3;
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dataPtr = fontDesc->dataPtr;
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var_10 = dataPtr[-2] - 1;
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si = 0;
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do {
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di = ((si + var_10) / 2) * itemSize;
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var_A = fontDesc->dataPtr + di;
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dx = (READ_LE_UINT16(var_A) & 0x7FFF);
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if (item > dx)
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var_10 = di - 1;
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else
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si = di + 1;
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} while ((dx != item) && (si <= var_10));
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if (dx != item)
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return;
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fontDesc->dataPtr = var_A + 3;
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item = 0;
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}
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dest->vidMode &= 0x7F;
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_videoDriver->drawLetter((unsigned char) item, x, y, fontDesc, color1, color2, transp, dest);
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dest->vidMode = videoMode;
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}
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} // End of namespace Gob
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