reactos/win32ss/gdi/gdi32/wine/gdi_private.h

   1 /*
   2  * GDI definitions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #ifndef __WINE_GDI_PRIVATE_H
  22 #define __WINE_GDI_PRIVATE_H
  23
  24 #include <limits.h>
  25 #include <math.h>
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29 #include <wine/gdi_driver.h>
  30
  31 /* Metafile defines */
  32 #define META_EOF 0x0000
  33 /* values of mtType in METAHEADER.  Note however that the disk image of a disk
  34    based metafile has mtType == 1 */
  35 #define METAFILE_MEMORY 1
  36 #define METAFILE_DISK   2
  37 #define MFHEADERSIZE (sizeof(METAHEADER))
  38 #define MFVERSION 0x300
  39
  40 typedef struct {
  41     EMR   emr;
  42     INT   nBreakExtra;
  43     INT   nBreakCount;
  44 } EMRSETTEXTJUSTIFICATION, *PEMRSETTEXTJUSTIFICATION;
  45
  46 struct gdi_obj_funcs
  47 {
  48     HGDIOBJ (*pSelectObject)( HGDIOBJ handle, HDC hdc );
  49     INT     (*pGetObjectA)( HGDIOBJ handle, INT count, LPVOID buffer );
  50     INT     (*pGetObjectW)( HGDIOBJ handle, INT count, LPVOID buffer );
  51     BOOL    (*pUnrealizeObject)( HGDIOBJ handle );
  52     BOOL    (*pDeleteObject)( HGDIOBJ handle );
  53 };
  54
  55 typedef struct tagWINEDC
  56 {
  57     HDC          hdc;
  58     struct gdi_physdev NullPhysDev;
  59     PHYSDEV      physDev;          /* current top of the physdev stack */
  60     LONG         refcount;         /* thread refcount */
  61     INT          saveLevel;
  62     HFONT hFont;
  63     HBRUSH hBrush;
  64     HPEN hPen;
  65     HPALETTE hPalette;
  66 } WINEDC, DC;
  67
  68 WINEDC* get_physdev_dc( PHYSDEV dev );
  69
  70 /* brush.c */
  71 extern BOOL get_brush_bitmap_info( HBRUSH handle, BITMAPINFO *info, void **bits, UINT *usage ) DECLSPEC_HIDDEN;
  72
  73 /* dc.c */
  74 extern DC *alloc_dc_ptr( WORD magic ) DECLSPEC_HIDDEN;
  75 extern void free_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
  76 extern DC *get_dc_ptr( HDC hdc ) DECLSPEC_HIDDEN;
  77 extern void release_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
  78
  79 /* dib.c */
  80 extern int bitmap_info_size( const BITMAPINFO * info, WORD coloruse ) DECLSPEC_HIDDEN;
  81
  82 /* enhmetafile.c */
  83 extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk ) DECLSPEC_HIDDEN;
  84
  85 /* gdiobj.c */
  86 extern HGDIOBJ alloc_gdi_handle( void *obj, WORD type, const struct gdi_obj_funcs *funcs ) DECLSPEC_HIDDEN;
  87 extern void *free_gdi_handle( HGDIOBJ handle ) DECLSPEC_HIDDEN;
  88 extern HGDIOBJ get_full_gdi_handle( HGDIOBJ handle ) DECLSPEC_HIDDEN;
  89 extern void *GDI_GetObjPtr( HGDIOBJ, WORD ) DECLSPEC_HIDDEN;
  90 extern void GDI_ReleaseObj( HGDIOBJ ) DECLSPEC_HIDDEN;
  91 extern void GDI_hdc_using_object(HGDIOBJ obj, HDC hdc) DECLSPEC_HIDDEN;
  92 extern void GDI_hdc_not_using_object(HGDIOBJ obj, HDC hdc) DECLSPEC_HIDDEN;
  93
  94 /* metafile.c */
  95 extern HMETAFILE MF_Create_HMETAFILE(METAHEADER *mh) DECLSPEC_HIDDEN;
  96 extern METAHEADER *MF_CreateMetaHeaderDisk(METAHEADER *mr, LPCVOID filename, BOOL unicode ) DECLSPEC_HIDDEN;
  97
  98 /* Format of comment record added by GetWinMetaFileBits */
  99 #include <pshpack2.h>
 100 typedef struct
 101 {
 102     DWORD magic;   /* WMFC */
 103     WORD unk04;    /* 1 */
 104     WORD unk06;    /* 0 */
 105     WORD unk08;    /* 0 */
 106     WORD unk0a;    /* 1 */
 107     WORD checksum;
 108     DWORD unk0e;   /* 0 */
 109     DWORD num_chunks;
 110     DWORD chunk_size;
 111     DWORD remaining_size;
 112     DWORD emf_size;
 113     BYTE emf_data[1];
 114 } emf_in_wmf_comment;
 115 #include <poppack.h>
 116
 117 #define WMFC_MAGIC 0x43464d57
 118 /* palette.c */
 119 extern HPALETTE WINAPI GDISelectPalette( HDC hdc, HPALETTE hpal, WORD wBkg) DECLSPEC_HIDDEN;
 120 extern UINT WINAPI GDIRealizePalette( HDC hdc ) DECLSPEC_HIDDEN;
 121
 122 #define EMR_SETLINKEDUFI        119
 123
 124 #define GET_DC_PHYSDEV(dc,func) \
 125     get_physdev_entry_point( (dc)->physDev, FIELD_OFFSET(struct gdi_dc_funcs,func))
 126
 127 static inline PHYSDEV pop_dc_driver( DC *dc, const struct gdi_dc_funcs *funcs )
 128 {
 129     PHYSDEV dev, *pdev = &dc->physDev;
 130     while (*pdev && (*pdev)->funcs != funcs) pdev = &(*pdev)->next;
 131     if (!*pdev) return NULL;
 132     dev = *pdev;
 133     *pdev = dev->next;
 134     return dev;
 135 }
 136
 137 static inline PHYSDEV find_dc_driver( DC *dc, const struct gdi_dc_funcs *funcs )
 138 {
 139     PHYSDEV dev;
 140
 141     for (dev = dc->physDev; dev; dev = dev->next) if (dev->funcs == funcs) return dev;
 142     return NULL;
 143 }
 144
 145 /* Undocumented value for DIB's iUsage: Indicates a mono DIB w/o pal entries */
 146 #define DIB_PAL_MONO 2
 147
 148 BOOL WINAPI SetVirtualResolution(HDC hdc, DWORD horz_res, DWORD vert_res, DWORD horz_size, DWORD vert_size);
 149
 150 static inline int get_dib_stride( int width, int bpp )
 151 {
 152     return ((width * bpp + 31) >> 3) & ~3;
 153 }
 154
 155 static inline int get_dib_image_size( const BITMAPINFO *info )
 156 {
 157     return get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount )
 158         * abs( info->bmiHeader.biHeight );
 159 }
 160
 161 /* only for use on sanitized BITMAPINFO structures */
 162 static inline int get_dib_info_size( const BITMAPINFO *info, UINT coloruse )
 163 {
 164     if (info->bmiHeader.biCompression == BI_BITFIELDS)
 165         return sizeof(BITMAPINFOHEADER) + 3 * sizeof(DWORD);
 166     if (coloruse == DIB_PAL_COLORS)
 167         return sizeof(BITMAPINFOHEADER) + info->bmiHeader.biClrUsed * sizeof(WORD);
 168     return FIELD_OFFSET( BITMAPINFO, bmiColors[info->bmiHeader.biClrUsed] );
 169 }
 170
 171 #define GdiWorldSpaceToDeviceSpace  0x204
 172 BOOL APIENTRY NtGdiGetTransform( _In_ HDC hdc, _In_ DWORD iXform, _Out_ LPXFORM pxf);
 173
 174 /* Special sauce for reactos */
 175 #define GDIRealizePalette RealizePalette
 176 #define GDISelectPalette SelectPalette
 177
 178 HGDIOBJ WINAPI GdiFixUpHandle(HGDIOBJ hGdiObj);
 179 #define get_full_gdi_handle GdiFixUpHandle
 180
 181 extern void push_dc_driver_ros(PHYSDEV *dev, PHYSDEV physdev, const struct gdi_dc_funcs *funcs);
 182 #define push_dc_driver push_dc_driver_ros
 183
 184 BOOL WINAPI SetWorldTransformForMetafile(HDC hdc, const XFORM *pxform);
 185 #define SetWorldTransform SetWorldTransformForMetafile
 186
 187 #ifdef _M_ARM
 188 #define DbgRaiseAssertionFailure() __emit(0xdefc)
 189 #else
 190 #define DbgRaiseAssertionFailure() __int2c()
 191 #endif // _M_ARM
 192
 193 #undef ASSERT
 194 #define ASSERT(x) if (!(x)) DbgRaiseAssertionFailure()
 195
 196 #endif /* __WINE_GDI_PRIVATE_H */
 197