graphics/escape.c

   1 /*
   2  * Escape() function.
   3  *
   4  * Copyright 1994  Bob Amstadt
   5  */
   6
   7 #include <stdio.h>
   8 #include "windows.h"
   9 #include "gdi.h"
  10 #include "heap.h"
  11 #include "ldt.h"
  12 #include "dc.h"
  13 #include <debug.h>
  14
  15
  16 INT16 WINAPI Escape16( HDC16 hdc, INT16 nEscape, INT16 cbInput,
  17                        SEGPTR lpszInData, SEGPTR lpvOutData )
  18 {
  19     DC * dc = DC_GetDCPtr( hdc );
  20     if (!dc || !dc->funcs->pEscape) return 0;
  21     return dc->funcs->pEscape( dc, nEscape, cbInput, lpszInData, lpvOutData );
  22 }
  23
  24 INT32 WINAPI Escape32( HDC32 hdc, INT32 nEscape, INT32 cbInput,
  25                        LPCSTR lpszInData, LPVOID lpvOutData )
  26 {
  27     DC          *dc = DC_GetDCPtr( hdc );
  28     SEGPTR      segin,segout;
  29     INT32       ret;
  30
  31     if (!dc || !dc->funcs->pEscape) return 0;
  32     segin       = (SEGPTR)lpszInData;
  33     segout      = (SEGPTR)lpvOutData;
  34     switch (nEscape) {
  35         /* Escape(hdc,QUERYESCSUPPORT,LPINT32,NULL) */
  36     case QUERYESCSUPPORT: {
  37         LPINT16 x = (LPINT16)SEGPTR_NEW(INT16);
  38         *x = *(INT32*)lpszInData;
  39         segin = SEGPTR_GET(x);
  40         break;
  41     }
  42
  43         /* Escape(hdc,GETSCALINGFACTOR,NULL,LPPOINT32) */
  44         /* Escape(hdc,GETPHYSPAGESIZE,NULL,LPPOINT32) */
  45         /* Escape(hdc,GETPRINTINGOFFSET,NULL,LPPOINT32) */
  46
  47     case GETSCALINGFACTOR:
  48     case GETPHYSPAGESIZE:
  49     case GETPRINTINGOFFSET:
  50         segout = SEGPTR_GET(SEGPTR_NEW(POINT16));
  51         break;
  52
  53       /* Escape(hdc,GETTECHNOLOGY,NULL,LPSTR); */
  54
  55     case GETTECHNOLOGY: {
  56         segout = SEGPTR_GET(SEGPTR_ALLOC(200)); /* enough I hope */
  57         break;
  58
  59     }
  60
  61       /* Escape(hdc,ENABLEPAIRKERNING,LPINT16,LPINT16); */
  62
  63     case ENABLEPAIRKERNING: {
  64         LPINT16 enab = SEGPTR_NEW(INT16);
  65         segout = SEGPTR_GET(SEGPTR_NEW(INT16));
  66         segin = SEGPTR_GET(enab);
  67         *enab = *(INT32*)lpszInData;
  68         break;
  69     }
  70
  71       /* Escape(hdc,GETFACENAME,NULL,LPSTR); */
  72
  73     case GETFACENAME: {
  74         segout = SEGPTR_GET(SEGPTR_ALLOC(200));
  75         break;
  76     }
  77
  78       /* Escape(hdc,STARTDOC,LPSTR,NULL); */
  79
  80     case STARTDOC: /* string may not be \0 terminated */
  81         if(lpszInData) {
  82             char *cp = SEGPTR_ALLOC(cbInput);
  83             memcpy(cp, lpszInData, cbInput);
  84             segin = SEGPTR_GET(cp);
  85         } else
  86             segin = 0;
  87         break;
  88
  89     default:
  90         break;
  91
  92     }
  93
  94     ret = dc->funcs->pEscape( dc, nEscape, cbInput, segin, segout );
  95
  96     switch(nEscape) {
  97     case QUERYESCSUPPORT:
  98         if (ret)
  99                 TRACE(driver,"target DC implements Escape %d\n",nEscape);
 100         SEGPTR_FREE(PTR_SEG_TO_LIN(segin));
 101         break;
 102     case GETSCALINGFACTOR:
 103     case GETPRINTINGOFFSET:
 104     case GETPHYSPAGESIZE: {
 105         LPPOINT16 x = (LPPOINT16)PTR_SEG_TO_LIN(segout);
 106         CONV_POINT16TO32(x,(LPPOINT32)lpvOutData);
 107         SEGPTR_FREE(x);
 108         break;
 109     }
 110     case GETTECHNOLOGY: {
 111         LPSTR x=PTR_SEG_TO_LIN(segout);
 112         lstrcpy32A(lpvOutData,x);
 113         SEGPTR_FREE(x);
 114         break;
 115     }
 116     case ENABLEPAIRKERNING: {
 117         LPINT16 enab = (LPINT16)PTR_SEG_TO_LIN(segout);
 118
 119         *(LPINT32)lpvOutData = *enab;
 120         SEGPTR_FREE(enab);
 121         SEGPTR_FREE(PTR_SEG_TO_LIN(segin));
 122         break;
 123     }
 124     case GETFACENAME: {
 125         LPSTR x = (LPSTR)PTR_SEG_TO_LIN(segout);
 126         lstrcpy32A(lpvOutData,x);
 127         SEGPTR_FREE(x);
 128         break;
 129     }
 130     case STARTDOC:
 131         SEGPTR_FREE(PTR_SEG_TO_LIN(segin));
 132         break;
 133
 134     default:
 135         break;
 136     }
 137     return ret;
 138 }
 139
 140 /******************************************************************************
 141  *              ExtEscape32     [GDI32.95]
 142  *
 143  * PARAMS
 144  *    hdc         [I] Handle to device context
 145  *    nEscape     [I] Escape function
 146  *    cbInput     [I] Number of bytes in input structure
 147  *    lpszInData  [I] Pointer to input structure
 148  *    cbOutput    [I] Number of bytes in output structure
 149  *    lpszOutData [O] Pointer to output structure
 150  *
 151  * RETURNS
 152  *    Success: >0
 153  *    Not implemented: 0
 154  *    Failure: <0
 155  */
 156 INT32 WINAPI ExtEscape32( HDC32 hdc, INT32 nEscape, INT32 cbInput,
 157                           LPCSTR lpszInData, INT32 cbOutput, LPSTR lpszOutData )
 158 {
 159     FIXME(driver,"(0x%04x,0x%x,%d,%s,%d,%p):stub\n",
 160           hdc,nEscape,cbInput,debugstr_a(lpszInData),cbOutput,lpszOutData);
 161     return 0;
 162 }
 163
 164 /*******************************************************************
 165  *      DrawEscape [GDI32.74]
 166  *
 167  *
 168  */
 169 INT32 WINAPI DrawEscape32(HDC32 hdc, INT32 nEscape, INT32 cbInput, LPCSTR lpszInData)
 170 {
 171     FIXME(gdi, "DrawEscape, stub\n");
 172     return 0;
 173 }