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//========================================================================
//
// TileCache.h
//
// Copyright 2014 Glyph & Cog, LLC
//
//========================================================================
#ifndef TILECACHE_H
#define TILECACHE_H
#include <aconf.h>
#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif
#include "gtypes.h"
#include "SplashTypes.h"
class SplashBitmap;
class SplashOutputDev;
class DisplayState;
class CachedTileDesc;
class TileCacheThreadPool;
class TileDesc;
//------------------------------------------------------------------------
class TileCache {
public:
TileCache(DisplayState *stateA);
~TileCache();
// Set the list of currently displayed tiles (TileDesc objects).
void setActiveTileList(GList *tiles);
// Return the bitmap for a tile. The tile must be on the current
// active list. This can return NULL if tile rasterization hasn't
// started yet. If <finished> is non-NULL, *<finished> will be set
// to true if rasterization of this bitmap is finished, false
// otherwise.
SplashBitmap *getTileBitmap(TileDesc *tile, GBool *finished);
// Set a callback to be called whenever a tile rasterization is
// finished. NB: this callback will be called from a worker thread.
void setTileDoneCbk(void (*cbk)(void *data), void *data)
{ tileDoneCbk = cbk; tileDoneCbkData = data; }
void paperColorChanged();
void reverseVideoChanged();
void optionalContentChanged();
void docChanged();
void forceRedraw();
private:
int findTile(TileDesc *tile, GList *tileList);
void cleanCache();
void flushCache(GBool wait);
void removeTile(CachedTileDesc *ct);
GBool hasUnstartedTiles();
CachedTileDesc *getUnstartedTile();
static void startPageCbk(void *data);
void rasterizeTile(CachedTileDesc *tile);
static GBool abortCheckCbk(void *data);
DisplayState *state;
GList *cache; // [CachedTileDesc]
TileCacheThreadPool *threadPool;
void (*tileDoneCbk)(void *data);
void *tileDoneCbkData;
friend class TileCacheThreadPool;
};
#endif
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