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                        LPVOID 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     ret = dc->funcs->pEscape( dc, nEscape, cbInput, segin, segout );
  79     switch(nEscape) {
  80     case QUERYESCSUPPORT:
  81         if (ret)
  82                 TRACE(driver,"target DC implements Escape %d\n",nEscape);
  83         SEGPTR_FREE(PTR_SEG_TO_LIN(segin));
  84         break;
  85     case GETSCALINGFACTOR:
  86     case GETPRINTINGOFFSET:
  87     case GETPHYSPAGESIZE: {
  88         LPPOINT16 x = (LPPOINT16)PTR_SEG_TO_LIN(segout);
  89         CONV_POINT16TO32(x,(LPPOINT32)lpvOutData);
  90         SEGPTR_FREE(x);
  91         break;
  92     }
  93     case GETTECHNOLOGY: {
  94         LPSTR x=PTR_SEG_TO_LIN(segout);
  95         lstrcpy32A(lpvOutData,x);
  96         SEGPTR_FREE(x);
  97         break;
  98     }
  99     case ENABLEPAIRKERNING: {
 100         LPINT16 enab = (LPINT16)PTR_SEG_TO_LIN(segout);
 101
 102         *(LPINT32)lpvOutData = *enab;
 103         SEGPTR_FREE(enab);
 104         SEGPTR_FREE(PTR_SEG_TO_LIN(segin));
 105         break;
 106     }
 107     case GETFACENAME: {
 108         LPSTR x = (LPSTR)PTR_SEG_TO_LIN(segout);
 109         lstrcpy32A(lpvOutData,x);
 110         SEGPTR_FREE(x);
 111         break;
 112     }
 113     default:
 114         break;
 115     }
 116     return ret;
 117 }
 118
 119 /******************************************************************************
 120  *              ExtEscape32     [GDI32.95]
 121  *
 122  * PARAMS
 123  *    hdc         [I] Handle to device context
 124  *    nEscape     [I] Escape function
 125  *    cbInput     [I] Number of bytes in input structure
 126  *    lpszInData  [I] Pointer to input structure
 127  *    cbOutput    [I] Number of bytes in output structure
 128  *    lpszOutData [O] Pointer to output structure
 129  *
 130  * RETURNS
 131  *    Success: >0
 132  *    Not implemented: 0
 133  *    Failure: <0
 134  */
 135 INT32 WINAPI ExtEscape32( HDC32 hdc, INT32 nEscape, INT32 cbInput,
 136                           LPCSTR lpszInData, INT32 cbOutput, LPSTR lpszOutData )
 137 {
 138     FIXME(driver,"(0x%04x,0x%x,%d,%s,%d,%p):stub\n",
 139           hdc,nEscape,cbInput,debugstr_a(lpszInData),cbOutput,lpszOutData);
 140     return 0;
 141 }
 142