dlls/winedib.drv/driver.c

   1 /*
   2  * Access to display driver
   3  *
   4  * Copyright 2009 Massimo Del Fedele
   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 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include "dibdrv.h"
  25 #include <stdio.h>
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(dibdrv);
  28
  29 /* CreateDriver
  30  * Allocate and fill the function pointer structure for a given module. */
  31 static DC_FUNCTIONS *CreateDriver( HMODULE module )
  32 {
  33     DC_FUNCTIONS *funcs;
  34
  35     if (!(funcs = HeapAlloc( GetProcessHeap(), 0, sizeof(*funcs))))
  36         return NULL;
  37
  38     /* fill the function table */
  39     if (module)
  40     {
  41 #define GET_FUNC(name) funcs->p##name = (void*)GetProcAddress( module, #name )
  42         GET_FUNC(AbortDoc);
  43         GET_FUNC(AbortPath);
  44         GET_FUNC(AlphaBlend);
  45         GET_FUNC(AngleArc);
  46         GET_FUNC(Arc);
  47         GET_FUNC(ArcTo);
  48         GET_FUNC(BeginPath);
  49         GET_FUNC(BitBlt);
  50         GET_FUNC(ChoosePixelFormat);
  51         GET_FUNC(Chord);
  52         GET_FUNC(CloseFigure);
  53         GET_FUNC(CreateBitmap);
  54         GET_FUNC(CreateDC);
  55         GET_FUNC(CreateDIBSection);
  56         GET_FUNC(DeleteBitmap);
  57         GET_FUNC(DeleteDC);
  58         GET_FUNC(DescribePixelFormat);
  59         GET_FUNC(DeviceCapabilities);
  60         GET_FUNC(Ellipse);
  61         GET_FUNC(EndDoc);
  62         GET_FUNC(EndPage);
  63         GET_FUNC(EndPath);
  64         GET_FUNC(EnumDeviceFonts);
  65         GET_FUNC(ExcludeClipRect);
  66         GET_FUNC(ExtDeviceMode);
  67         GET_FUNC(ExtEscape);
  68         GET_FUNC(ExtFloodFill);
  69         GET_FUNC(ExtSelectClipRgn);
  70         GET_FUNC(ExtTextOut);
  71         GET_FUNC(FillPath);
  72         GET_FUNC(FillRgn);
  73         GET_FUNC(FlattenPath);
  74         GET_FUNC(FrameRgn);
  75         GET_FUNC(GdiComment);
  76         GET_FUNC(GetBitmapBits);
  77         GET_FUNC(GetCharWidth);
  78         GET_FUNC(GetDCOrgEx);
  79         GET_FUNC(GetDIBColorTable);
  80         GET_FUNC(GetDIBits);
  81         GET_FUNC(GetDeviceCaps);
  82         GET_FUNC(GetDeviceGammaRamp);
  83         GET_FUNC(GetICMProfile);
  84         GET_FUNC(GetNearestColor);
  85         GET_FUNC(GetPixel);
  86         GET_FUNC(GetPixelFormat);
  87         GET_FUNC(GetSystemPaletteEntries);
  88         GET_FUNC(GetTextExtentExPoint);
  89         GET_FUNC(GetTextMetrics);
  90         GET_FUNC(IntersectClipRect);
  91         GET_FUNC(InvertRgn);
  92         GET_FUNC(LineTo);
  93         GET_FUNC(MoveTo);
  94         GET_FUNC(ModifyWorldTransform);
  95         GET_FUNC(OffsetClipRgn);
  96         GET_FUNC(OffsetViewportOrg);
  97         GET_FUNC(OffsetWindowOrg);
  98         GET_FUNC(PaintRgn);
  99         GET_FUNC(PatBlt);
 100         GET_FUNC(Pie);
 101         GET_FUNC(PolyBezier);
 102         GET_FUNC(PolyBezierTo);
 103         GET_FUNC(PolyDraw);
 104         GET_FUNC(PolyPolygon);
 105         GET_FUNC(PolyPolyline);
 106         GET_FUNC(Polygon);
 107         GET_FUNC(Polyline);
 108         GET_FUNC(PolylineTo);
 109         GET_FUNC(RealizeDefaultPalette);
 110         GET_FUNC(RealizePalette);
 111         GET_FUNC(Rectangle);
 112         GET_FUNC(ResetDC);
 113         GET_FUNC(RestoreDC);
 114         GET_FUNC(RoundRect);
 115         GET_FUNC(SaveDC);
 116         GET_FUNC(ScaleViewportExt);
 117         GET_FUNC(ScaleWindowExt);
 118         GET_FUNC(SelectBitmap);
 119         GET_FUNC(SelectBrush);
 120         GET_FUNC(SelectClipPath);
 121         GET_FUNC(SelectFont);
 122         GET_FUNC(SelectPalette);
 123         GET_FUNC(SelectPen);
 124         GET_FUNC(SetArcDirection);
 125         GET_FUNC(SetBitmapBits);
 126         GET_FUNC(SetBkColor);
 127         GET_FUNC(SetBkMode);
 128         GET_FUNC(SetDCBrushColor);
 129         GET_FUNC(SetDCOrg);
 130         GET_FUNC(SetDCPenColor);
 131         GET_FUNC(SetDIBColorTable);
 132         GET_FUNC(SetDIBits);
 133         GET_FUNC(SetDIBitsToDevice);
 134         GET_FUNC(SetDeviceClipping);
 135         GET_FUNC(SetDeviceGammaRamp);
 136         GET_FUNC(SetMapMode);
 137         GET_FUNC(SetMapperFlags);
 138         GET_FUNC(SetPixel);
 139         GET_FUNC(SetPixelFormat);
 140         GET_FUNC(SetPolyFillMode);
 141         GET_FUNC(SetROP2);
 142         GET_FUNC(SetRelAbs);
 143         GET_FUNC(SetStretchBltMode);
 144         GET_FUNC(SetTextAlign);
 145         GET_FUNC(SetTextCharacterExtra);
 146         GET_FUNC(SetTextColor);
 147         GET_FUNC(SetTextJustification);
 148         GET_FUNC(SetViewportExt);
 149         GET_FUNC(SetViewportOrg);
 150         GET_FUNC(SetWindowExt);
 151         GET_FUNC(SetWindowOrg);
 152         GET_FUNC(SetWorldTransform);
 153         GET_FUNC(StartDoc);
 154         GET_FUNC(StartPage);
 155         GET_FUNC(StretchBlt);
 156         GET_FUNC(StretchDIBits);
 157         GET_FUNC(StrokeAndFillPath);
 158         GET_FUNC(StrokePath);
 159         GET_FUNC(SwapBuffers);
 160         GET_FUNC(UnrealizePalette);
 161         GET_FUNC(WidenPath);
 162
 163         /* OpenGL32 */
 164         GET_FUNC(wglCreateContext);
 165         GET_FUNC(wglDeleteContext);
 166         GET_FUNC(wglGetProcAddress);
 167         GET_FUNC(wglGetPbufferDCARB);
 168         GET_FUNC(wglMakeContextCurrentARB);
 169         GET_FUNC(wglMakeCurrent);
 170         GET_FUNC(wglSetPixelFormatWINE);
 171         GET_FUNC(wglShareLists);
 172         GET_FUNC(wglUseFontBitmapsA);
 173         GET_FUNC(wglUseFontBitmapsW);
 174 #undef GET_FUNC
 175     }
 176     else
 177         memset( funcs, 0, sizeof(*funcs) );
 178
 179     /* add it to the list */
 180     return funcs;
 181 }
 182
 183
 184 /* LoadDisplayDriver
 185  * Loads display driver - partially grabbed from gdi32 */
 186 static DC_FUNCTIONS *X11DrvFuncs = NULL;
 187 static HMODULE X11DrvModule = 0;
 188 DC_FUNCTIONS *_DIBDRV_LoadDisplayDriver(void)
 189 {
 190     char buffer[MAX_PATH], libname[32], *name, *next;
 191     HMODULE module = 0;
 192     HKEY hkey;
 193
 194     if (X11DrvFuncs)  /* already loaded */
 195         return X11DrvFuncs;
 196
 197     strcpy( buffer, "x11" );  /* default value */
 198     /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
 199     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
 200     {
 201         DWORD type, count = sizeof(buffer);
 202         RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
 203         RegCloseKey( hkey );
 204     }
 205
 206     name = buffer;
 207     while (name)
 208     {
 209         next = strchr( name, ',' );
 210         if (next)
 211             *next++ = 0;
 212
 213         snprintf( libname, sizeof(libname), "wine%s.drv", name );
 214         if ((module = LoadLibraryA( libname )) != 0)
 215             break;
 216         name = next;
 217     }
 218
 219     if (!(X11DrvFuncs = CreateDriver(module)))
 220     {
 221         ERR( "Could not create graphics driver '%s'\n", buffer );
 222         FreeLibrary( module );
 223         ExitProcess(1);
 224     }
 225
 226     X11DrvModule = module;
 227     return X11DrvFuncs;
 228 }
 229
 230 /* FreeDisplayDriver
 231    Frees resources allocated by Display driver */
 232 void _DIBDRV_FreeDisplayDriver(void)
 233 {
 234     /* frees function table */
 235     if(X11DrvFuncs)
 236     {
 237         HeapFree(GetProcessHeap(), 0, X11DrvFuncs);
 238         X11DrvFuncs = 0;
 239     }
 240     /* and unload the module */
 241     if(X11DrvModule)
 242     {
 243         FreeLibrary(X11DrvModule);
 244         X11DrvModule = 0;
 245     }
 246 }
 247
 248 /* GetDisplayDriver
 249    Gets a pointer to display drives'function table */
 250 inline DC_FUNCTIONS *_DIBDRV_GetDisplayDriver(void)
 251 {
 252     return X11DrvFuncs;
 253
 254 }