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Diffstat (limited to 'common/rfb/EncodeManager.h')
-rw-r--r-- | common/rfb/EncodeManager.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/common/rfb/EncodeManager.h b/common/rfb/EncodeManager.h new file mode 100644 index 00000000..df0275ce --- /dev/null +++ b/common/rfb/EncodeManager.h @@ -0,0 +1,114 @@ +/* Copyright (C) 2000-2003 Constantin Kaplinsky. All Rights Reserved. + * Copyright (C) 2011 D. R. Commander. All Rights Reserved. + * Copyright 2014 Pierre Ossman for Cendio AB + * + * 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. + */ +#ifndef __RFB_ENCODEMANAGER_H__ +#define __RFB_ENCODEMANAGER_H__ + +#include <vector> + +#include <rdr/types.h> +#include <rfb/PixelBuffer.h> + +namespace rfb { + class SConnection; + class Encoder; + class UpdateInfo; + class PixelBuffer; + class RenderedCursor; + class Region; + class Rect; + + struct RectInfo; + + class EncodeManager { + public: + EncodeManager(SConnection* conn); + ~EncodeManager(); + + // Hack to let ConnParams calculate the client's preferred encoding + static bool supported(int encoding); + + void writeUpdate(const UpdateInfo& ui, const PixelBuffer* pb, + const RenderedCursor* renderedCursor); + + protected: + void prepareEncoders(); + + int computeNumRects(const Region& changed); + + void writeCopyRects(const UpdateInfo& ui); + void writeSolidRects(Region *changed, const PixelBuffer* pb); + void writeRects(const Region& changed, const PixelBuffer* pb); + + void writeSubRect(const Rect& rect, const PixelBuffer *pb); + + bool checkSolidTile(const Rect& r, const rdr::U8* colourValue, + const PixelBuffer *pb); + void extendSolidAreaByBlock(const Rect& r, const rdr::U8* colourValue, + const PixelBuffer *pb, Rect* er); + void extendSolidAreaByPixel(const Rect& r, const Rect& sr, + const rdr::U8* colourValue, + const PixelBuffer *pb, Rect* er); + + PixelBuffer* preparePixelBuffer(const Rect& rect, + const PixelBuffer *pb, bool convert); + + bool analyseRect(const PixelBuffer *pb, + struct RectInfo *info, int maxColours); + + protected: + // Preprocessor generated, optimised methods + inline bool checkSolidTile(const Rect& r, rdr::U8 colourValue, + const PixelBuffer *pb); + inline bool checkSolidTile(const Rect& r, rdr::U16 colourValue, + const PixelBuffer *pb); + inline bool checkSolidTile(const Rect& r, rdr::U32 colourValue, + const PixelBuffer *pb); + + inline bool analyseRect(int width, int height, + const rdr::U8* buffer, int stride, + struct RectInfo *info, int maxColours); + inline bool analyseRect(int width, int height, + const rdr::U16* buffer, int stride, + struct RectInfo *info, int maxColours); + inline bool analyseRect(int width, int height, + const rdr::U32* buffer, int stride, + struct RectInfo *info, int maxColours); + + protected: + SConnection *conn; + + std::vector<Encoder*> encoders; + std::vector<int> activeEncoders; + + class OffsetPixelBuffer : public FullFramePixelBuffer { + public: + OffsetPixelBuffer() {} + virtual ~OffsetPixelBuffer() {} + + void update(const PixelFormat& pf, int width, int height, + const rdr::U8* data_, int stride); + }; + + OffsetPixelBuffer offsetPixelBuffer; + ManagedPixelBuffer convertedPixelBuffer; + }; +} + +#endif |