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//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
#ifndef __uspp__
#define __uspp__
#ifdef __cplusplus
extern "C" {#endif
//// USP10P.H
//
// Private additions to USP header for use within USP and by the
// NT5 complex script language pack only.
#if DBG
#define USPALLOC(a,b) (DG.psFile=__FILE__, DG.iLine=__LINE__, UspAllocCache(a, b))
#define USPALLOCTEMP(a, b) (DG.psFile=__FILE__, DG.iLine=__LINE__, UspAllocTemp(a, b))
#define USPFREE(a) (DG.psFile=__FILE__, DG.iLine=__LINE__, UspFreeMem(a))
#else
#define USPALLOC(a,b) UspAllocCache(a, b)
#define USPALLOCTEMP(a, b) UspAllocTemp(a, b)
#define USPFREE(a) UspFreeMem (a)
#endif
///// LPK entry point serialisation
//
// Since it is not possible to guarantee that Uniscribe and the
// LPK receive process deatachment after all their clients, we
// need to track Uniscribe shutdown.
//
// At each LPK entrypoint, the LPK calls EnterLpk, and after each exit
// it calls ExitLpk.
//
// If Uniscribe is detached, or being detatched, EnterLpk fails. In this
// case, the LPK entrypoint must do something safe and return directly.
//
// Uniscribe maintains an LPK nesting level. If a process detach occurs
// during LPK execution, a detachPending flag is set and will be processed
// at the ExitLpk that pops all the nesting.
void LpkPresent(); // Used by LPK to disable cleanup at PROCESS_DETACH time
///// UspAllocCache
//
// Allocate long term memory for use caching font tables
HRESULT WINAPI UspAllocCache( int iSize, // In required size in bytes
void **ppv); // Out Allocated address
///// UspAllocTemp
//
// Allocate short term memory with lifetime no more than an API call
HRESULT WINAPI UspAllocTemp( int iSize, // In required size in bytes
void **ppv); // Out Allocated address
///// UspFreeMem
//
//
HRESULT WINAPI UspFreeMem( void *pv); // In memory to be freed
///// SCRIPT_STRING_ANALYSIS
//
// This structure provides all parameters required for script analysis.
//
//
#define MAX_PLANE_0_FONT 13 // max number of non-surrogate fallback fonts
#define MAX_SURROGATE_FONT 16 // max number of the surrogate fallback fonts
// Max fallback fonts including user font (Cannot exceed 31 because usage is recorded in a bitset)
// and Microsoft Sans Serif and surrogate fallback fonts.
#define MAX_FONT MAX_PLANE_0_FONT + MAX_SURROGATE_FONT // 29 fonts
#define DUMMY_MAX_FONT 7 // dummy one for dummy entries
typedef struct tag_STRING_ANALYSIS {
// Input variables - Initialised by the caller
HDC hdc; // Only required for shaping (GCP_Ligate && lpOrder or lpGlyphs arrays specified)
DWORD dwFlags; // See ScriptStringAnalyse
CHARSETINFO csi; // As returned by TranslateCharsetInfo
// Input buffers
WCHAR *pwInChars; // Unicode input string
int cInChars; // String length
int iHotkeyPos; // Derived from '&' positions if SSA_HOTKEY set
int iMaxExtent; // Required maximum pixel width (used if clipping or fitting)
const int *piDx; // Logical advance width array
SCRIPT_CONTROL sControl; SCRIPT_STATE sState;
SCRIPT_TABDEF *pTabdef; // Tabstop definition
int cMaxItems; // Number of entries in pItems
SCRIPT_ITEM *pItems;
// Low cost analysis output buffers
// No shaping required when fLigate=FALSE
// Must be at least as long as the input string
BYTE *pbLevel; // Array of item level
int *piVisToLog; // Visual to Logical mapping
WORD *pwLeftGlyph; // Leftmost glyph of each logical item
WORD *pwcGlyphs; // Count of glyphs in each logical item
SCRIPT_LOGATTR *pLogAttr; // Cursor points, word and line breaking (indexed in logical order)
// High cost analysis output buffers
// Require hDC to be set
// Must be at least nGlyphs long.
int cMaxGlyphs; // Max glyphs to create
WORD *pwGlyphs; // Output glyph array
WORD *pwLogClust; // logical to visual mapping
SCRIPT_VISATTR *pVisAttr; // Justification insertion points (visual order) and other flags
int *piAdvance; // Advance widths
int *piJustify; // Justified advance widths
GOFFSET *pGoffset; // x,y combining character offsets
// Font fallback
DWORD dwFallbacksUsed;// Bitmap of fallback fonts used
BYTE *pbFont; // Font index per item, 0 means original user font
// Obsolete - have to leave them here so the subsequent layout
// remains unchanged for old LPK to use (wchao, 12/14/2000).
// we used the first two slots in hf_dummy array for some needed flags
// take a look to isAssociated and isPrinting
SCRIPT_CACHE sc_dummy[DUMMY_MAX_FONT]; HFONT isAssociated; // used as flag to indicate if the user selected font is associated
HFONT hf_dummy[DUMMY_MAX_FONT-1];
int iCurFont; // 0 For users font
LOGFONTA lfA; // Logfont from the original DC - only set if font fallback happens
// Output variables
// Item analysis
int cItems; // Number of items analysed == Index of terminal (sentinel) item in pItem
// Generated glyphs and character measurements
// Note that
// 1) nOutGlyphs may be more or less than nInChars.
// 2) nOutChars may be less than nInChars if fClip was requested.
int cOutGlyphs; // Number of glyphs generated
int cOutChars; // Number of characters generated
ABC abc; SIZE size; // Size of whole line (pixel width and height)
// For client use
void *pvClient;
// fallback font store
// we store in the items sc[MAX_PLANE_0_FONT-1] and hf[MAX_PLANE_0_FONT-1] the data for Microsoft Sans Serif
// font which has hight same as the selected user font height.
// note that hf[1] will have the font data for Microsoft Sans Serif font too but
// with adjusted height.
// the items in sc and hf arrays which have index greater than or equal MAX_PLANE_0_FONT will be used
// for surrogate fallback fonts.
SCRIPT_CACHE sc[MAX_FONT]; // Script cache for each fallback, [0] is users font
HFONT hf[MAX_FONT]; // Handles to fallback fonts, [0] is users font
} STRING_ANALYSIS;
#ifdef __cplusplus
}#endif
#endif
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