Leaked source code of windows server 2003
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/****************************************************************************/
// nsbcdisp.h
//
// RDP Send Bitmap Cache display driver header.
//
// Copyright(c) Microsoft 1997-2000
/****************************************************************************/
#ifndef _H_NSBCDISP
#define _H_NSBCDISP
#include <nddapi.h>
#include <asbcapi.h>
#define GH_STATUS_SUCCESS 0
#define GH_STATUS_NO_MEMORY 1
#define GH_STATUS_CLIPPED 2
#define SBC_NUM_BRUSH_CACHE_ENTRIES 64
#define SBC_NUM_GLYPH_CACHE_ENTRIES 256
/****************************************************************************/
// Structure: SBC_COLOR_TABLE
/****************************************************************************/
typedef struct tagSBC_COLOR_TABLE
{
PALETTEENTRY color[SBC_NUM_8BPP_COLORS];
} SBC_COLOR_TABLE, *PSBC_COLOR_TABLE;
/****************************************************************************/
// Structure: MEMBLT_ORDER_EXTRA_INFO
//
// Description: Extra information required by SBC to process a MEMBLT
// order.
/****************************************************************************/
typedef struct
{
// MemBlt source and destination surfaces.
SURFOBJ *pSource;
SURFOBJ *pDest;
// iUniq value from the device surface
ULONG iDeviceUniq;
// XLATEOBJ for the blt.
XLATEOBJ *pXlateObj;
// Tile size per side, in ID form (corresponding to a bitmap cache ID
// and its protocol-defined cell size) and expanded form.
unsigned TileID;
unsigned TileSize;
// Determines if special background screen bit construction is needed
// before caching a bitmap.
BOOLEAN bDeltaRLE;
// Used under special conditions where we need to turn off fast-path
// caching. Only use right now is when caching directly from the screen
// bitmap.
BOOLEAN bNoFastPathCaching;
// Used during caching call chain to keep from attempting to re-cache
// the same tile for each intersecting clip rect.
unsigned CacheID;
unsigned CacheIndex;
#ifdef PERF_SPOILING
// Used to tell the caching functions if the target for the current
// operation is the screen. If it is the caching functions will force
// waitlist orders to be sent as screen data.
BOOL bIsPrimarySurface;
#endif
} MEMBLT_ORDER_EXTRA_INFO, *PMEMBLT_ORDER_EXTRA_INFO;
/****************************************************************************/
// Structure: SBC_FAST_PATH_INFO
//
// Description: Information used to create fast-path cache keys.
/****************************************************************************/
typedef struct tagSBC_FAST_PATH_INFO
{
HSURF hsurf;
ULONG iUniq;
ULONG iDeviceUniq;
XLATEOBJ *pXlateObj;
ULONG iUniqXlate;
POINTL tileOrigin;
unsigned TileSize;
BOOL bDeltaRLE;
} SBC_FAST_PATH_INFO, *PSBC_FAST_PATH_INFO;
/****************************************************************************/
// SBC_FRAG_INFO
//
// Glyph fragment info.
/****************************************************************************/
typedef struct tagSBC_FRAG_INFO
{
INT32 dx; // width of fragment background rect
INT32 dy; // height of fragment background rect
} SBC_FRAG_INFO, *PSBC_FRAG_INFO;
/****************************************************************************/
// SBC_OFFSCR_BITMAP_DELETE_INFO
/****************************************************************************/
typedef struct tagSBC_OFFSCR_BITMAP_DEL_INFO
{
unsigned bitmapId;
unsigned bitmapSize;
} SBC_OFFSCR_BITMAP_DEL_INFO, *PSBC_OFFSCR_BITMAP_DEL_INFO;
/****************************************************************************/
// Prototypes and inlines
/****************************************************************************/
void RDPCALL SBC_DDInit(PDD_PDEV);
void RDPCALL SBC_InitShm(void);
BOOLEAN RDPCALL SBCSelectGlyphCache(unsigned, PINT32);
BOOLEAN __fastcall SBCBitmapCacheCallback(
CHCACHEHANDLE hCache,
unsigned Event,
unsigned iCacheEntry,
void *UserDefined);
BOOLEAN __fastcall SBCFastPathCacheCallback(
CHCACHEHANDLE hCache,
unsigned event,
unsigned iCacheEntry,
void *UserDefined);
BOOLEAN RDPCALL SBCCreateGlyphCache(
unsigned cEntries,
unsigned cbCellSize,
PCHCACHEDATA pCacheHandle);
BOOLEAN RDPCALL SBCCreateFragCache(
unsigned cEntries,
unsigned cbCellSize,
PCHCACHEDATA pCacheHandle);
BOOLEAN __fastcall SBCGlyphCallback(
CHCACHEHANDLE hCache,
unsigned event,
unsigned iCacheEntry,
void *UserDefined);
BOOLEAN __fastcall SBCOffscreenCallback(
CHCACHEHANDLE hCache,
unsigned event,
unsigned iCacheEntry,
void *UserDefined);
unsigned RDPCALL SBCSelectBitmapCache(unsigned, unsigned);
unsigned SBC_DDQueryBitmapTileSize(unsigned, unsigned, PPOINTL, unsigned,
unsigned);
BOOLEAN RDPCALL SBCCacheBits(PDD_PDEV, BYTE *, unsigned, unsigned, unsigned,
#ifdef PERF_SPOILING
unsigned, unsigned, unsigned *, unsigned *, BOOL);
#else
unsigned, unsigned, unsigned *, unsigned *);
#endif
BOOLEAN RDPCALL SBC_SendCacheColorTableOrder(PDD_PDEV, unsigned *);
BOOLEAN RDPCALL SBC_CacheBitmapTile(PDD_PDEV, PMEMBLT_ORDER_EXTRA_INFO,
RECTL *, RECTL *);
void RDPCALL SBC_Update(SBC_BITMAP_CACHE_KEY_INFO *);
void RDPCALL SBC_DDSync(BOOLEAN bMustSync);
unsigned RDPCALL SBCAllocGlyphCache(PCHCACHEHANDLE);
unsigned RDPCALL SBCAllocBitmapCache(PCHCACHEHANDLE);
void RDPCALL SBCFreeColorTableCacheData(void);
void RDPCALL SBCFreeGlyphCacheData(void);
void RDPCALL SBCFreeBitmapCacheData(void);
void RDPCALL SBCFreeCacheData(void);
UINT32 RDPCALL SBCDDGetTickCount(void);
/****************************************************************************/
// SBC_DDTerm
/****************************************************************************/
__inline void RDPCALL SBC_DDTerm(void)
{
SBCFreeCacheData();
}
/****************************************************************************/
// SBC_DDDisc
/****************************************************************************/
__inline void RDPCALL SBC_DDDisc(void)
{
SBCFreeCacheData();
}
#endif /* _H_NSBCDISP */