Removed excessive statement (break after return or goto, not useful
[wine] / dlls / x11drv / init.c
1 /*
2  * X11 graphics driver initialisation functions
3  *
4  * Copyright 1996 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  */
20
21 #include "config.h"
22
23 #include <stdarg.h>
24 #include <string.h>
25
26 #include "windef.h"
27 #include "winbase.h"
28 #include "x11drv.h"
29 #include "x11font.h"
30 #include "ddrawi.h"
31 #include "wine/debug.h"
32
33 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
34
35 Display *gdi_display;  /* display to use for all GDI functions */
36
37 /* a few dynamic device caps */
38 static int log_pixels_x;  /* pixels per logical inch in x direction */
39 static int log_pixels_y;  /* pixels per logical inch in y direction */
40 static int horz_size;     /* horz. size of screen in millimeters */
41 static int vert_size;     /* vert. size of screen in millimeters */
42 static int palette_size;
43 unsigned int text_caps = (TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
44                           TC_CR_ANY | TC_SA_DOUBLE | TC_SA_INTEGER |
45                           TC_SA_CONTIN | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE);
46                           /* X11R6 adds TC_SF_X_YINDEP, Xrender adds TC_VA_ABLE */
47
48
49 static const WCHAR dpi_key_name[] = {'S','o','f','t','w','a','r','e','\\','F','o','n','t','s','\0'};
50 static const WCHAR dpi_value_name[] = {'L','o','g','P','i','x','e','l','s','\0'};
51
52 static const WCHAR INIFontSection[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
53                                        'W','i','n','e','\\','C','o','n','f','i','g','\\',
54                                        'f','o','n','t','s','\0'};
55 static const WCHAR INIResolution[] = {'R','e','s','o','l','u','t','i','o','n','\0'};
56
57 /******************************************************************************
58  *      get_dpi
59  *
60  * get the dpi from the registry
61  */
62 static DWORD get_dpi( void )
63 {
64     DWORD dpi = 96;
65     HKEY hkey;
66
67     if(RegOpenKeyW(HKEY_LOCAL_MACHINE, INIFontSection, &hkey) == ERROR_SUCCESS)
68     {
69         char buffer[20];
70         DWORD type, count = sizeof(buffer);
71         if(RegQueryValueExW(hkey, INIResolution, 0, &type, buffer, &count) == ERROR_SUCCESS)
72             if(atoi(buffer) != 96)
73                 MESSAGE("Please use the registry key HKEY_CURRENT_CONFIG\\Software\\Fonts\\LogPixels\n"
74                         "to set the screen resolution and remove the \"Resolution\" entry in the config file\n");
75         RegCloseKey(hkey);
76     }
77
78     if (RegOpenKeyW(HKEY_CURRENT_CONFIG, dpi_key_name, &hkey) == ERROR_SUCCESS)
79     {
80         DWORD type, size, new_dpi;
81
82         size = sizeof(new_dpi);
83         if(RegQueryValueExW(hkey, dpi_value_name, NULL, &type, (void *)&new_dpi, &size) == ERROR_SUCCESS)
84         {
85             if(type == REG_DWORD && new_dpi != 0)
86                 dpi = new_dpi;
87         }
88         RegCloseKey(hkey);
89     }
90     return dpi;
91 }
92
93 /**********************************************************************
94  *           X11DRV_GDI_Initialize
95  */
96 void X11DRV_GDI_Initialize( Display *display )
97 {
98     gdi_display = display;
99
100     palette_size = X11DRV_PALETTE_Init();
101
102     X11DRV_BITMAP_Init();
103
104     /* Initialize XRender */
105     X11DRV_XRender_Init();
106
107     /* Initialize device caps */
108     log_pixels_x = log_pixels_y = get_dpi();
109     horz_size = MulDiv( screen_width, 254, log_pixels_x * 10 );
110     vert_size = MulDiv( screen_height, 254, log_pixels_y * 10 );
111
112     /* Initialize fonts and text caps */
113     X11DRV_FONT_Init(log_pixels_x, log_pixels_y);
114 }
115
116 /**********************************************************************
117  *           X11DRV_GDI_Finalize
118  */
119 void X11DRV_GDI_Finalize(void)
120 {
121     X11DRV_PALETTE_Cleanup();
122     XCloseDisplay( gdi_display );
123     gdi_display = NULL;
124 }
125
126 /**********************************************************************
127  *           X11DRV_CreateDC
128  */
129 BOOL X11DRV_CreateDC( HDC hdc, X11DRV_PDEVICE **pdev, LPCWSTR driver, LPCWSTR device,
130                       LPCWSTR output, const DEVMODEW* initData )
131 {
132     X11DRV_PDEVICE *physDev;
133
134     physDev = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*physDev) );
135     if (!physDev) return FALSE;
136
137     *pdev = physDev;
138     physDev->hdc = hdc;
139
140     if (GetObjectType( hdc ) == OBJ_MEMDC)
141     {
142         physDev->drawable  = BITMAP_stock_pixmap;
143         physDev->depth     = 1;
144     }
145     else
146     {
147         physDev->drawable  = root_window;
148         physDev->depth     = screen_depth;
149     }
150     physDev->region = CreateRectRgn( 0, 0, 0, 0 );
151
152     wine_tsx11_lock();
153     physDev->gc = XCreateGC( gdi_display, physDev->drawable, 0, NULL );
154     XSetGraphicsExposures( gdi_display, physDev->gc, False );
155     XSetSubwindowMode( gdi_display, physDev->gc, IncludeInferiors );
156     XFlush( gdi_display );
157     wine_tsx11_unlock();
158     return TRUE;
159 }
160
161
162 /**********************************************************************
163  *           X11DRV_DeleteDC
164  */
165 BOOL X11DRV_DeleteDC( X11DRV_PDEVICE *physDev )
166 {
167     if(physDev->xrender)
168       X11DRV_XRender_DeleteDC( physDev );
169     DeleteObject( physDev->region );
170     wine_tsx11_lock();
171     XFreeGC( gdi_display, physDev->gc );
172     while (physDev->used_visuals-- > 0)
173         XFree(physDev->visuals[physDev->used_visuals]);
174     wine_tsx11_unlock();
175     HeapFree( GetProcessHeap(), 0, physDev );
176     return TRUE;
177 }
178
179
180 /***********************************************************************
181  *           GetDeviceCaps    (X11DRV.@)
182  */
183 INT X11DRV_GetDeviceCaps( X11DRV_PDEVICE *physDev, INT cap )
184 {
185     switch(cap)
186     {
187     case DRIVERVERSION:
188         return 0x300;
189     case TECHNOLOGY:
190         return DT_RASDISPLAY;
191     case HORZSIZE:
192         return horz_size;
193     case VERTSIZE:
194         return vert_size;
195     case HORZRES:
196         return screen_width;
197     case VERTRES:
198         return screen_height;
199     case BITSPIXEL:
200         return screen_depth;
201     case PLANES:
202         return 1;
203     case NUMBRUSHES:
204         return -1;
205     case NUMPENS:
206         return -1;
207     case NUMMARKERS:
208         return 0;
209     case NUMFONTS:
210         return 0;
211     case NUMCOLORS:
212         /* MSDN: Number of entries in the device's color table, if the device has
213          * a color depth of no more than 8 bits per pixel.For devices with greater
214          * color depths, -1 is returned. */
215         return (screen_depth > 8) ? -1 : (1 << screen_depth);
216     case PDEVICESIZE:
217         return sizeof(X11DRV_PDEVICE);
218     case CURVECAPS:
219         return (CC_CIRCLES | CC_PIE | CC_CHORD | CC_ELLIPSES | CC_WIDE |
220                 CC_STYLED | CC_WIDESTYLED | CC_INTERIORS | CC_ROUNDRECT);
221     case LINECAPS:
222         return (LC_POLYLINE | LC_MARKER | LC_POLYMARKER | LC_WIDE |
223                 LC_STYLED | LC_WIDESTYLED | LC_INTERIORS);
224     case POLYGONALCAPS:
225         return (PC_POLYGON | PC_RECTANGLE | PC_WINDPOLYGON | PC_SCANLINE |
226                 PC_WIDE | PC_STYLED | PC_WIDESTYLED | PC_INTERIORS);
227     case TEXTCAPS:
228         return text_caps;
229     case CLIPCAPS:
230         return CP_REGION;
231     case RASTERCAPS:
232         return (RC_BITBLT | RC_BANDING | RC_SCALING | RC_BITMAP64 | RC_DI_BITMAP |
233                 RC_DIBTODEV | RC_BIGFONT | RC_STRETCHBLT | RC_STRETCHDIB | RC_DEVBITS |
234                 (palette_size ? RC_PALETTE : 0));
235     case ASPECTX:
236     case ASPECTY:
237         return 36;
238     case ASPECTXY:
239         return 51;
240     case LOGPIXELSX:
241         return log_pixels_x;
242     case LOGPIXELSY:
243         return log_pixels_y;
244     case CAPS1:
245         FIXME("(%p): CAPS1 is unimplemented, will return 0\n", physDev->hdc );
246         /* please see wingdi.h for the possible bit-flag values that need
247            to be returned. also, see
248            http://msdn.microsoft.com/library/ddkdoc/win95ddk/graphcnt_1m0p.htm */
249         return 0;
250     case SIZEPALETTE:
251         return palette_size;
252     case NUMRESERVED:
253     case COLORRES:
254     case PHYSICALWIDTH:
255     case PHYSICALHEIGHT:
256     case PHYSICALOFFSETX:
257     case PHYSICALOFFSETY:
258     case SCALINGFACTORX:
259     case SCALINGFACTORY:
260     case VREFRESH:
261     case DESKTOPVERTRES:
262     case DESKTOPHORZRES:
263     case BTLALIGNMENT:
264         return 0;
265     default:
266         FIXME("(%p): unsupported capability %d, will return 0\n", physDev->hdc, cap );
267         return 0;
268     }
269 }
270
271
272 /**********************************************************************
273  *           ExtEscape  (X11DRV.@)
274  */
275 INT X11DRV_ExtEscape( X11DRV_PDEVICE *physDev, INT escape, INT in_count, LPCVOID in_data,
276                       INT out_count, LPVOID out_data )
277 {
278     switch(escape)
279     {
280     case QUERYESCSUPPORT:
281         if (in_data)
282         {
283             switch (*(const INT *)in_data)
284             {
285             case DCICOMMAND:
286                 return DD_HAL_VERSION;
287             case X11DRV_ESCAPE:
288                 return TRUE;
289             }
290         }
291         break;
292
293     case DCICOMMAND:
294         if (in_data)
295         {
296             const DCICMD *lpCmd = in_data;
297             if (lpCmd->dwVersion != DD_VERSION) break;
298             return X11DRV_DCICommand(in_count, lpCmd, out_data);
299         }
300         break;
301
302     case X11DRV_ESCAPE:
303         if (in_data && in_count >= sizeof(enum x11drv_escape_codes))
304         {
305             switch(*(const enum x11drv_escape_codes *)in_data)
306             {
307             case X11DRV_GET_DISPLAY:
308                 if (out_count >= sizeof(Display *))
309                 {
310                     *(Display **)out_data = gdi_display;
311                     return TRUE;
312                 }
313                 break;
314             case X11DRV_GET_DRAWABLE:
315                 if (out_count >= sizeof(Drawable))
316                 {
317                     *(Drawable *)out_data = physDev->drawable;
318                     return TRUE;
319                 }
320                 break;
321             case X11DRV_GET_FONT:
322                 if (out_count >= sizeof(Font))
323                 {
324                     fontObject* pfo = XFONT_GetFontObject( physDev->font );
325                     if (pfo == NULL) return FALSE;
326                     *(Font *)out_data = pfo->fs->fid;
327                     return TRUE;
328                 }
329                 break;
330             case X11DRV_SET_DRAWABLE:
331                 if (in_count >= sizeof(struct x11drv_escape_set_drawable))
332                 {
333                     const struct x11drv_escape_set_drawable *data = (const struct x11drv_escape_set_drawable *)in_data;
334                     if(physDev->xrender) X11DRV_XRender_UpdateDrawable( physDev );
335                     physDev->org = data->org;
336                     physDev->drawable = data->drawable;
337                     physDev->drawable_org = data->drawable_org;
338                     wine_tsx11_lock();
339                     XSetSubwindowMode( gdi_display, physDev->gc, data->mode );
340                     wine_tsx11_unlock();
341                     return TRUE;
342                 }
343                 break;
344             case X11DRV_START_EXPOSURES:
345                 wine_tsx11_lock();
346                 XSetGraphicsExposures( gdi_display, physDev->gc, True );
347                 wine_tsx11_unlock();
348                 physDev->exposures = 0;
349                 return TRUE;
350             case X11DRV_END_EXPOSURES:
351                 if (out_count >= sizeof(HRGN))
352                 {
353                     HRGN hrgn = 0, tmp = 0;
354
355                     wine_tsx11_lock();
356                     XSetGraphicsExposures( gdi_display, physDev->gc, False );
357                     if (physDev->exposures)
358                     {
359                         for (;;)
360                         {
361                             XEvent event;
362
363                             XWindowEvent( gdi_display, physDev->drawable, ~0, &event );
364                             if (event.type == NoExpose) break;
365                             if (event.type == GraphicsExpose)
366                             {
367                                 int x = event.xgraphicsexpose.x - physDev->org.x;
368                                 int y = event.xgraphicsexpose.y - physDev->org.y;
369
370                                 TRACE( "got %d,%d %dx%d count %d\n", x, y,
371                                        event.xgraphicsexpose.width,
372                                        event.xgraphicsexpose.height,
373                                        event.xgraphicsexpose.count );
374
375                                 if (!tmp) tmp = CreateRectRgn( 0, 0, 0, 0 );
376                                 SetRectRgn( tmp, x, y,
377                                             x + event.xgraphicsexpose.width,
378                                             y + event.xgraphicsexpose.height );
379                                 if (hrgn) CombineRgn( hrgn, hrgn, tmp, RGN_OR );
380                                 else
381                                 {
382                                     hrgn = tmp;
383                                     tmp = 0;
384                                 }
385                                 if (!event.xgraphicsexpose.count) break;
386                             }
387                             else
388                             {
389                                 ERR( "got unexpected event %d\n", event.type );
390                                 break;
391                             }
392                         }
393                         if (tmp) DeleteObject( tmp );
394                     }
395                     wine_tsx11_unlock();
396                     *(HRGN *)out_data = hrgn;
397                     return TRUE;
398                 }
399                 break;
400             }
401         }
402         break;
403     }
404     return 0;
405 }