153 lines
3.4 KiB
C++
153 lines
3.4 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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* 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 "be_zodiac.h"
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void OSystem_PalmZodiac::draw_mouse() {
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if (!_mouseDataP || _mouseDrawn || !_mouseVisible)
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return;
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byte *src = _mouseDataP;
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int x = _mouseCurState.x - _mouseHotspotX;
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int y = _mouseCurState.y - _mouseHotspotY;
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int w = _mouseCurState.w;
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int h = _mouseCurState.h;
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// clip the mouse rect
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if (y < 0) {
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src -= y * w;
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h += y;
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y = 0;
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}
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if (x < 0) {
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src -= x;
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w += x;
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x = 0;
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}
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if (h > _screenHeight - y)
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h = _screenHeight - y;
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if (w > _screenWidth - x)
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w = _screenWidth - x;
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if (w <= 0 || h <= 0)
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return;
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// store the bounding box so that undraw mouse can restore the area the
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// mouse currently covers to its original content
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_mouseOldState.x = x;
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_mouseOldState.y = y;
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_mouseOldState.w = w;
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_mouseOldState.h = h;
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byte color;
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int ww;
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if (_overlayVisible) {
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int16 *bak = (int16 *)_mouseBackupP;
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int16 *pal = _cursorPaletteDisabled ? _nativePal : _mousePal;
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int16 *dst;
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TwGfxLockSurface(_overlayP, (void **)&dst);
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dst += y * _screenWidth + x;
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do {
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ww = w;
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do {
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*bak++ = *dst;
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color = *src++;
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// transparent, don't draw
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if (color != _mouseKeyColor)
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*dst = pal[color];
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dst++;
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} while (--ww);
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src += _mouseCurState.w - w;
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dst += _screenWidth - w;
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} while (--h);
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TwGfxUnlockSurface(_overlayP, true);
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} else {
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byte *bak = _mouseBackupP;
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byte *dst =_offScreenP + y * _screenWidth + x;
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do {
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ww = w;
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do {
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*bak++ = *dst;
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color = *src++;
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// transparent, don't draw
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if (color != _mouseKeyColor)
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*dst = color;
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dst++;
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} while (--ww);
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src += _mouseCurState.w - w;
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dst += _screenWidth - w;
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} while (--h);
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}
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_mouseDrawn = true;
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}
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void OSystem_PalmZodiac::undraw_mouse() {
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if (!_mouseDrawn)
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return;
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int h = _mouseOldState.h;
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// no need to do clipping here, since draw_mouse() did that already
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if (_overlayVisible) {
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uint16 *dst;
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uint16 *bak = (uint16 *)_mouseBackupP;
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TwGfxLockSurface(_overlayP, (void **)&dst);
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dst += _mouseOldState.y * _screenWidth + _mouseOldState.x;
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do {
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MemMove(dst, bak, _mouseOldState.w * 2);
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dst += _screenWidth;
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bak += _mouseOldState.w;
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} while (--h);
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TwGfxUnlockSurface(_overlayP, true);
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} else {
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byte *dst = _offScreenP + _mouseOldState.y * _screenWidth + _mouseOldState.x;
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byte *bak = _mouseBackupP;
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do {
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MemMove(dst, bak, _mouseOldState.w);
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dst += _screenWidth;
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bak += _mouseOldState.w;
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} while (--h);
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}
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_mouseDrawn = false;
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}
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