win32ss/gdi/ntgdi/coord.h

   1 #pragma once
   2
   3 /* Maximum extend of coordinate space */
   4 #define MIN_COORD (INT_MIN / 16)
   5 #define MAX_COORD (INT_MAX / 16)
   6
   7 #define IntLPtoDP(pdc, ppt, count) \
   8         DC_vUpdateWorldToDevice(pdc); \
   9         DC_vXformWorldToDevice(pdc, count, (PPOINTL)(ppt), (PPOINTL)(ppt));
  10 #define CoordLPtoDP(pdc, ppt) \
  11         DC_vXformWorldToDevice(pdc, 1,  (PPOINTL)(ppt), (PPOINTL)(ppt));
  12 #define IntDPtoLP(pdc, ppt, count) \
  13         DC_vUpdateDeviceToWorld(pdc); \
  14         DC_vXformDeviceToWorld(pdc, count, (PPOINTL)(ppt), (PPOINTL)(ppt));
  15 #define CoordDPtoLP(pdc, ppt) \
  16         DC_vXformDeviceToWorld(pdc, 1, (PPOINTL)(ppt), (PPOINTL)(ppt));
  17
  18 #define XForm2MatrixS(m, x) XFormToMatrix(m, (XFORML*)x)
  19 #define MatrixS2XForm(x, m) MatrixToXForm((XFORML*)x, m)
  20
  21 FORCEINLINE
  22 void
  23 XFormToMatrix(
  24     MATRIX *pmx,
  25     const XFORML *pxform)
  26 {
  27     XFORMOBJ xo;
  28     XFORMOBJ_vInit(&xo, pmx);
  29     XFORMOBJ_iSetXform(&xo, pxform);
  30 }
  31
  32 FORCEINLINE
  33 void
  34 MatrixToXForm(
  35     XFORML *pxform,
  36     const MATRIX *pmx)
  37 {
  38     XFORMOBJ xo;
  39     XFORMOBJ_vInit(&xo, (MATRIX*)pmx);
  40     XFORMOBJ_iGetXform(&xo, pxform);
  41 }
  42
  43 FORCEINLINE
  44 void
  45 InvertXform(
  46     XFORML *pxformDest,
  47     const XFORML *pxformSource)
  48 {
  49     XFORMOBJ xo;
  50     MATRIX mx;
  51
  52     XFORMOBJ_vInit(&xo, &mx);
  53     XFORMOBJ_iSetXform(&xo, pxformSource);
  54     XFORMOBJ_iInverse(&xo, &xo);
  55     XFORMOBJ_iGetXform(&xo, pxformDest);
  56 }
  57
  58 VOID
  59 FASTCALL
  60 DC_vFixIsotropicMapping(PDC pdc);
  61
  62 VOID
  63 FASTCALL
  64 DC_vUpdateWorldToDevice(PDC pdc);
  65
  66 VOID
  67 FASTCALL
  68 DC_vUpdateDeviceToWorld(PDC pdc);
  69
  70 FORCEINLINE
  71 PSIZEL
  72 DC_pszlViewportExt(PDC pdc)
  73 {
  74     PDC_ATTR pdcattr = pdc->pdcattr;
  75
  76     /* Check if we need isotropic fixup */
  77     if ((pdcattr->flXform & PAGE_EXTENTS_CHANGED) &&
  78         (pdcattr->iMapMode == MM_ISOTROPIC))
  79     {
  80         /* Fixup viewport extension */
  81         DC_vFixIsotropicMapping(pdc);
  82     }
  83
  84     return &pdcattr->szlViewportExt;
  85 }
  86
  87 FORCEINLINE
  88 PMATRIX
  89 DC_pmxWorldToPage(PDC pdc)
  90 {
  91     return &pdc->pdcattr->mxWorldToPage;
  92 }
  93
  94 FORCEINLINE
  95 PMATRIX
  96 DC_pmxWorldToDevice(PDC pdc)
  97 {
  98     /* Check if world or page xform was changed */
  99     if (pdc->pdcattr->flXform & (PAGE_XLATE_CHANGED|PAGE_EXTENTS_CHANGED|WORLD_XFORM_CHANGED))
 100     {
 101         /* Update the world-to-device xform */
 102          DC_vUpdateWorldToDevice(pdc);
 103     }
 104
 105     return &pdc->pdcattr->mxWorldToDevice;
 106 }
 107
 108 FORCEINLINE
 109 PMATRIX
 110 DC_pmxDeviceToWorld(PDC pdc)
 111 {
 112     /* Check if the device-to-world xform is invalid */
 113     if (pdc->pdcattr->flXform & DEVICE_TO_WORLD_INVALID)
 114     {
 115         /* Update the world-to-device xform */
 116          DC_vUpdateDeviceToWorld(pdc);
 117     }
 118
 119     return &pdc->pdcattr->mxDeviceToWorld;
 120 }
 121
 122 FORCEINLINE
 123 VOID
 124 DC_vXformDeviceToWorld(
 125     IN PDC pdc,
 126     IN ULONG cNumPoints,
 127     IN PPOINTL pptlDest,
 128     IN PPOINTL pptlSource)
 129 {
 130     XFORMOBJ xo;
 131     PMATRIX pmx;
 132
 133     pmx = DC_pmxDeviceToWorld(pdc);
 134     XFORMOBJ_vInit(&xo, pmx);
 135     XFORMOBJ_bApplyXform(&xo, XF_LTOL, cNumPoints, pptlDest, pptlSource);
 136 }
 137
 138 FORCEINLINE
 139 VOID
 140 DC_vXformWorldToDevice(
 141     IN PDC pdc,
 142     IN ULONG cNumPoints,
 143     IN PPOINTL pptlDest,
 144     IN PPOINTL pptlSource)
 145 {
 146     XFORMOBJ xo;
 147     PMATRIX pmx;
 148
 149     pmx = DC_pmxWorldToDevice(pdc);
 150     XFORMOBJ_vInit(&xo, pmx);
 151     XFORMOBJ_bApplyXform(&xo, XF_LTOL, cNumPoints, pptlDest, pptlSource);
 152 }
 153
 154 BOOL
 155 NTAPI
 156 GreModifyWorldTransform(
 157     PDC pdc,
 158     const XFORML *pXForm,
 159     DWORD dwMode);
 160
 161 VOID FASTCALL IntMirrorWindowOrg(PDC);
 162 int APIENTRY IntGdiSetMapMode(PDC, int);
 163 BOOL FASTCALL GreLPtoDP(HDC, LPPOINT, INT);
 164 BOOL FASTCALL GreDPtoLP(HDC, LPPOINT, INT);
 165 BOOL APIENTRY GreGetDCPoint(HDC,UINT,PPOINTL);
 166 BOOL WINAPI GreGetWindowExtEx( _In_ HDC hdc, _Out_ LPSIZE lpSize);
 167 BOOL WINAPI GreGetViewportExtEx( _In_ HDC hdc, _Out_ LPSIZE lpSize);
 168 BOOL FASTCALL GreSetViewportOrgEx(HDC,int,int,LPPOINT);
 169 BOOL WINAPI GreGetDCOrgEx(_In_ HDC, _Out_ PPOINTL, _Out_ PRECTL);
 170 BOOL WINAPI GreSetDCOrg(_In_  HDC, _In_ LONG, _In_ LONG, _In_opt_ PRECTL);