KasmVNC/common/rfb/EncCache.h

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2020-09-20 14:16:44 +02:00
/* Copyright (C) 2000-2003 Constantin Kaplinsky. All Rights Reserved.
* Copyright (C) 2011 D. R. Commander. All Rights Reserved.
* Copyright 2014-2018 Pierre Ossman for Cendio AB
* Copyright (C) 2019 Lauri Kasanen
*
* 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_ENCCACHE_H__
#define __RFB_ENCCACHE_H__
#include <map>
#include <rdr/types.h>
#include <stdint.h>
#include <stdlib.h>
namespace rfb {
struct EncId {
uint8_t type;
uint16_t x, y, w, h;
uint32_t len;
bool operator <(const EncId &other) const {
return type < other.type ||
x < other.x ||
y < other.y ||
w < other.w ||
h < other.h;
}
};
class EncCache {
public:
EncCache();
~EncCache();
void clear();
void add(uint8_t type, uint16_t x, uint16_t y, uint16_t w, uint16_t h,
uint32_t len, const void *data);
const void *get(uint8_t type, uint16_t x, uint16_t y, uint16_t w, uint16_t h,
uint32_t &len) const;
bool enabled;
protected:
std::map<EncId, const void *> cache;
};
}
#endif