graphics/escape.c

   1 /*
   2  * Escape() function.
   3  *
   4  * Copyright 1994  Bob Amstadt
   5  */
   6
   7 #include <string.h>
   8 #include "windef.h"
   9 #include "wingdi.h"
  10 #include "gdi.h"
  11 #include "heap.h"
  12 #include "debugtools.h"
  13
  14 DEFAULT_DEBUG_CHANNEL(driver);
  15
  16 /***********************************************************************
  17  *            Escape16  [GDI.38]
  18  */
  19 INT16 WINAPI Escape16( HDC16 hdc, INT16 nEscape, INT16 cbInput,
  20                        SEGPTR lpszInData, SEGPTR lpvOutData )
  21 {
  22     INT16 ret = 0;
  23     DC * dc = DC_GetDCPtr( hdc );
  24     if (dc)
  25     {
  26         if (dc->funcs->pEscape)
  27         {
  28             if(nEscape == SETABORTPROC) SetAbortProc16(hdc, lpszInData);
  29             ret = dc->funcs->pEscape( dc, nEscape, cbInput, lpszInData, lpvOutData );
  30         }
  31         GDI_ReleaseObj( hdc );
  32     }
  33     return ret;
  34 }
  35
  36 /************************************************************************
  37  *             Escape  [GDI32.@]
  38  */
  39 INT WINAPI Escape( HDC hdc, INT nEscape, INT cbInput,
  40                    LPCSTR lpszInData, LPVOID lpvOutData )
  41 {
  42     SEGPTR      segin,segout;
  43     INT ret = 0;
  44     DC * dc = DC_GetDCPtr( hdc );
  45     if (!dc) return 0;
  46     if (!dc->funcs->pEscape) goto done;
  47
  48     segin       = (SEGPTR)lpszInData;
  49     segout      = (SEGPTR)lpvOutData;
  50     switch (nEscape) {
  51         /* Escape(hdc,QUERYESCSUPPORT,LPINT,NULL) */
  52         /* Escape(hdc,CLIP_TO_PATH,LPINT,NULL) */
  53     case QUERYESCSUPPORT:
  54     case CLIP_TO_PATH:
  55       {
  56         LPINT16 x = (LPINT16)SEGPTR_NEW(INT16);
  57         *x = *(INT*)lpszInData;
  58         segin = SEGPTR_GET(x);
  59         cbInput = sizeof(INT16);
  60         break;
  61       }
  62
  63         /* Escape(hdc,GETSCALINGFACTOR,NULL,LPPOINT32) */
  64         /* Escape(hdc,GETPHYSPAGESIZE,NULL,LPPOINT32) */
  65         /* Escape(hdc,GETPRINTINGOFFSET,NULL,LPPOINT32) */
  66
  67     case GETSCALINGFACTOR:
  68     case GETPHYSPAGESIZE:
  69     case GETPRINTINGOFFSET:
  70         segout = SEGPTR_GET(SEGPTR_NEW(POINT16));
  71         cbInput = sizeof(POINT16);
  72         break;
  73
  74         /* Escape(hdc,EXT_DEVICE_CAPS,LPINT,LPDWORD) */
  75     case EXT_DEVICE_CAPS:
  76       {
  77         LPINT16 lpIndex = (LPINT16)SEGPTR_NEW(INT16);
  78         LPDWORD lpCaps = (LPDWORD)SEGPTR_NEW(DWORD);
  79         *lpIndex = *(INT*)lpszInData;
  80
  81         segin = SEGPTR_GET(lpIndex);
  82         segout = SEGPTR_GET(lpCaps);
  83         cbInput = sizeof(INT16);
  84         break;
  85       }
  86
  87         /* Escape(hdc,SETLINECAP,LPINT,LPINT) */
  88     case SETLINECAP:
  89     case SETLINEJOIN:
  90     case SETMITERLIMIT:
  91       {
  92         LPINT16 new = (LPINT16)SEGPTR_NEW(INT16);
  93         LPINT16 old = (LPINT16)SEGPTR_NEW(INT16);
  94         *new = *(INT*)lpszInData;
  95         segin = SEGPTR_GET(new);
  96         segout = SEGPTR_GET(old);
  97         cbInput = sizeof(INT16);
  98         break;
  99       }
 100       /* Escape(hdc,GETTECHNOLOGY,NULL,LPSTR); */
 101     case GETTECHNOLOGY: {
 102         segout = SEGPTR_GET(SEGPTR_ALLOC(200)); /* enough I hope */
 103         break;
 104
 105     }
 106
 107       /* Escape(hdc,ENABLEPAIRKERNING,LPINT16,LPINT16); */
 108
 109     case ENABLEPAIRKERNING: {
 110         LPINT16 enab = SEGPTR_NEW(INT16);
 111         segout = SEGPTR_GET(SEGPTR_NEW(INT16));
 112         segin = SEGPTR_GET(enab);
 113         *enab = *(INT*)lpszInData;
 114         cbInput = sizeof(INT16);
 115         break;
 116     }
 117
 118       /* Escape(hdc,GETFACENAME,NULL,LPSTR); */
 119
 120     case GETFACENAME: {
 121         segout = SEGPTR_GET(SEGPTR_ALLOC(200));
 122         break;
 123     }
 124
 125       /* Escape(hdc,STARTDOC,LPSTR,LPDOCINFOA);
 126        * lpvOutData is actually a pointer to the DocInfo structure and used as
 127        * a second input parameter
 128        */
 129
 130     case STARTDOC: /* string may not be \0 terminated */
 131         if(lpszInData) {
 132             char *cp = SEGPTR_ALLOC(cbInput);
 133             memcpy(cp, lpszInData, cbInput);
 134             segin = SEGPTR_GET(cp);
 135         } else
 136             segin = 0;
 137
 138         if(lpvOutData) {
 139             DOCINFO16 *lpsegdoc = SEGPTR_NEW(DOCINFO16);
 140             DOCINFOA *lpdoc = lpvOutData;
 141             memset(lpsegdoc, 0, sizeof(*lpsegdoc));
 142             lpsegdoc->cbSize = sizeof(*lpsegdoc);
 143             lpsegdoc->lpszDocName = SEGPTR_GET(SEGPTR_STRDUP(lpdoc->lpszDocName));
 144             lpsegdoc->lpszOutput = SEGPTR_GET(SEGPTR_STRDUP(lpdoc->lpszOutput));
 145             lpsegdoc->lpszDatatype = SEGPTR_GET(SEGPTR_STRDUP(lpdoc->lpszDatatype));
 146             lpsegdoc->fwType = lpdoc->fwType;
 147             segout = SEGPTR_GET(lpsegdoc);
 148         }
 149         break;
 150
 151     case SETABORTPROC:
 152         SetAbortProc(hdc, (ABORTPROC)lpszInData);
 153         break;
 154
 155       /* Escape(hdc,END_PATH,PATHINFO,NULL); */
 156     case END_PATH:
 157       {
 158         BYTE *p = SEGPTR_ALLOC(cbInput);
 159         memcpy(p, lpszInData, cbInput);
 160         segin = SEGPTR_GET(p);
 161         break;
 162       }
 163
 164     default:
 165         break;
 166
 167     }
 168
 169     ret = dc->funcs->pEscape( dc, nEscape, cbInput, segin, segout );
 170
 171     switch(nEscape) {
 172     case QUERYESCSUPPORT:
 173         if (ret)
 174                 TRACE("target DC implements Escape %d\n",nEscape);
 175         SEGPTR_FREE(MapSL(segin));
 176         break;
 177
 178     case SETLINECAP:
 179     case SETLINEJOIN:
 180     case SETMITERLIMIT:
 181         *(LPINT)lpvOutData = *(LPINT16)MapSL(segout);
 182         SEGPTR_FREE(MapSL(segin));
 183         SEGPTR_FREE(MapSL(segout));
 184         break;
 185     case GETSCALINGFACTOR:
 186     case GETPRINTINGOFFSET:
 187     case GETPHYSPAGESIZE: {
 188         LPPOINT16 x = MapSL(segout);
 189         CONV_POINT16TO32(x,(LPPOINT)lpvOutData);
 190         SEGPTR_FREE(x);
 191         break;
 192     }
 193     case EXT_DEVICE_CAPS:
 194         *(LPDWORD)lpvOutData = *(LPDWORD)MapSL(segout);
 195         SEGPTR_FREE(MapSL(segin));
 196         SEGPTR_FREE(MapSL(segout));
 197         break;
 198
 199     case GETTECHNOLOGY: {
 200         LPSTR x=MapSL(segout);
 201         strcpy(lpvOutData,x);
 202         SEGPTR_FREE(x);
 203         break;
 204     }
 205     case ENABLEPAIRKERNING: {
 206         LPINT16 enab = MapSL(segout);
 207
 208         *(LPINT)lpvOutData = *enab;
 209         SEGPTR_FREE(enab);
 210         SEGPTR_FREE(MapSL(segin));
 211         break;
 212     }
 213     case GETFACENAME: {
 214         LPSTR x = (LPSTR)MapSL(segout);
 215         strcpy(lpvOutData,x);
 216         SEGPTR_FREE(x);
 217         break;
 218     }
 219     case STARTDOC: {
 220         DOCINFO16 *doc = MapSL(segout);
 221         SEGPTR_FREE(MapSL(doc->lpszDocName));
 222         SEGPTR_FREE(MapSL(doc->lpszOutput));
 223         SEGPTR_FREE(MapSL(doc->lpszDatatype));
 224         SEGPTR_FREE(doc);
 225         SEGPTR_FREE(MapSL(segin));
 226         break;
 227     }
 228
 229     case CLIP_TO_PATH:
 230     case END_PATH:
 231         SEGPTR_FREE(MapSL(segin));
 232         break;
 233
 234     default:
 235         break;
 236     }
 237  done:
 238     GDI_ReleaseObj( hdc );
 239     return ret;
 240 }
 241
 242 /******************************************************************************
 243  *              ExtEscape       [GDI32.@]
 244  *
 245  * PARAMS
 246  *    hdc         [I] Handle to device context
 247  *    nEscape     [I] Escape function
 248  *    cbInput     [I] Number of bytes in input structure
 249  *    lpszInData  [I] Pointer to input structure
 250  *    cbOutput    [I] Number of bytes in output structure
 251  *    lpszOutData [O] Pointer to output structure
 252  *
 253  * RETURNS
 254  *    Success: >0
 255  *    Not implemented: 0
 256  *    Failure: <0
 257  */
 258 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput,
 259                       LPCSTR lpszInData, INT cbOutput, LPSTR lpszOutData )
 260 {
 261     char *inBuf, *outBuf;
 262     INT ret;
 263
 264     inBuf = SEGPTR_ALLOC(cbInput);
 265     memcpy(inBuf, lpszInData, cbInput);
 266     outBuf = cbOutput ? SEGPTR_ALLOC(cbOutput) : NULL;
 267     ret = Escape16( hdc, nEscape, cbInput, SEGPTR_GET(inBuf),
 268                     SEGPTR_GET(outBuf) );
 269     SEGPTR_FREE(inBuf);
 270     if(outBuf) {
 271         memcpy(lpszOutData, outBuf, cbOutput);
 272         SEGPTR_FREE(outBuf);
 273     }
 274     return ret;
 275 }
 276
 277 /*******************************************************************
 278  *      DrawEscape [GDI32.@]
 279  *
 280  *
 281  */
 282 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
 283 {
 284     FIXME("DrawEscape, stub\n");
 285     return 0;
 286 }