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113 lines
2.4 KiB
113 lines
2.4 KiB
/*
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* Copyright (C) 2000 heXoNet Support GmbH, D-66424 Homburg.
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* All Rights Reserved.
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*
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* This 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 2 of the License, or
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* (at your option) any later version.
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*
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* This software 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 software; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*/
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#ifndef _hexonet_rfb_XUpdateScanner_h_
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#define _hexonet_rfb_XUpdateScanner_h_
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#include <qptrlist.h>
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#include <X11/Xlib.h>
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#include <X11/extensions/XShm.h>
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class Hint {
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public:
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int x, y, w, h;
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Hint() :
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x(0),
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y(0),
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w(0),
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h(0)
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{}
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Hint(Hint &h) :
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x(h.x),
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y(h.y),
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w(h.w),
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h(h.h)
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{
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}
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int left() {
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return x;
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}
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int right() {
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return x+w;
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}
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int top() {
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return y;
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}
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int bottom() {
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return y+h;
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}
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};
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struct TileChangeRegion {
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short firstLine, lastLine;
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};
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class XUpdateScanner
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{
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public:
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XUpdateScanner( Display *_dpy,
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Window _window,
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unsigned char *_fb,
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int _width, int _height,
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int _bitsPerPixel, int _bytesPerLine,
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bool useXShm);
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~XUpdateScanner();
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// hitList: returns list of changes
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// ptrY: ptrY: position of the cursor
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void searchUpdates( QPtrList<Hint> &hintList, int ptrY);
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private:
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void testScanline(int y, bool rememberHits);
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bool copyTile(int x, int y, int tx, int ty);
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void copyAllTiles();
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void flushHint(int x, int y, int &x0, Hint &hint,
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QPtrList<Hint> &hintList);
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void createHints(QPtrList<Hint> &hintList);
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void addTileToHint(int x, int y, int th, Hint &hint);
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void createHintFromTile(int x, int y, int th, Hint &hint);
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Display *dpy;
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Window window;
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unsigned char *fb;
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int width, height;
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int bitsPerPixel, bytesPerLine;
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unsigned int tileWidth, tileHeight;
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unsigned int count;
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bool useShm;
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XImage *scanline;
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XShmSegmentInfo shminfo_scanline;
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XImage *tile;
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XShmSegmentInfo shminfo_tile;
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unsigned int tilesX, tilesY;
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bool *tileMap;
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struct TileChangeRegion *tileRegionMap;
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};
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#endif // _hexonet_rfb_XUpdateScanner_h_
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