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- /* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
- */
- //
- // RRE decoding function.
- //
- // This file is #included after having set the following macro:
- // BPP - 8, 16 or 32
-
- #include <rdr/InStream.h>
-
- namespace rfb {
-
- // CONCAT2E concatenates its arguments, expanding them if they are macros
-
- #ifndef CONCAT2E
- #define CONCAT2(a,b) a##b
- #define CONCAT2E(a,b) CONCAT2(a,b)
- #endif
-
- #define PIXEL_T rdr::CONCAT2E(U,BPP)
- #define READ_PIXEL CONCAT2E(readOpaque,BPP)
- #define RRE_DECODE CONCAT2E(rreDecode,BPP)
-
- void RRE_DECODE (const Rect& r, rdr::InStream* is,
- const PixelFormat& pf, ModifiablePixelBuffer* pb)
- {
- int nSubrects = is->readU32();
- PIXEL_T bg = is->READ_PIXEL();
- pb->fillRect(pf, r, bg);
-
- for (int i = 0; i < nSubrects; i++) {
- PIXEL_T pix = is->READ_PIXEL();
- int x = is->readU16();
- int y = is->readU16();
- int w = is->readU16();
- int h = is->readU16();
- pb->fillRect(pf, Rect(r.tl.x+x, r.tl.y+y, r.tl.x+x+w, r.tl.y+y+h), pix);
- }
- }
-
- #undef PIXEL_T
- #undef READ_PIXEL
- #undef RRE_DECODE
- }
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