dlls/wineandroid.drv/init.c

   1 /*
   2  * Android driver initialisation functions
   3  *
   4  * Copyright 1996, 2013, 2017 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 #define NONAMELESSSTRUCT
  22 #define NONAMELESSUNION
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #include <stdarg.h>
  27 #include <string.h>
  28 #include <link.h>
  29
  30 #include "windef.h"
  31 #include "winbase.h"
  32 #include "winreg.h"
  33 #include "android.h"
  34 #include "wine/server.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(android);
  38
  39 unsigned int screen_width = 0;
  40 unsigned int screen_height = 0;
  41 RECT virtual_screen_rect = { 0, 0, 0, 0 };
  42
  43 MONITORINFOEXW default_monitor =
  44 {
  45     sizeof(default_monitor),    /* cbSize */
  46     { 0, 0, 0, 0 },             /* rcMonitor */
  47     { 0, 0, 0, 0 },             /* rcWork */
  48     MONITORINFOF_PRIMARY,       /* dwFlags */
  49     { '\\','\\','.','\\','D','I','S','P','L','A','Y','1',0 }   /* szDevice */
  50 };
  51
  52 static const unsigned int screen_bpp = 32;  /* we don't support other modes */
  53
  54 static int device_init_done;
  55
  56 typedef struct
  57 {
  58     struct gdi_physdev dev;
  59 } ANDROID_PDEVICE;
  60
  61 static const struct gdi_dc_funcs android_drv_funcs;
  62
  63
  64 /******************************************************************************
  65  *           init_monitors
  66  */
  67 void init_monitors( int width, int height )
  68 {
  69     static const WCHAR trayW[] = {'S','h','e','l','l','_','T','r','a','y','W','n','d',0};
  70     RECT rect;
  71     HWND hwnd = FindWindowW( trayW, NULL );
  72
  73     virtual_screen_rect.right = width;
  74     virtual_screen_rect.bottom = height;
  75     default_monitor.rcMonitor = default_monitor.rcWork = virtual_screen_rect;
  76
  77     if (!hwnd || !IsWindowVisible( hwnd )) return;
  78     if (!GetWindowRect( hwnd, &rect )) return;
  79     if (rect.top) default_monitor.rcWork.bottom = rect.top;
  80     else default_monitor.rcWork.top = rect.bottom;
  81     TRACE( "found tray %p %s work area %s\n", hwnd,
  82            wine_dbgstr_rect( &rect ), wine_dbgstr_rect( &default_monitor.rcWork ));
  83 }
  84
  85
  86 /******************************************************************************
  87  *           set_screen_dpi
  88  */
  89 void set_screen_dpi( DWORD dpi )
  90 {
  91     static const WCHAR dpi_key_name[] = {'S','o','f','t','w','a','r','e','\\','F','o','n','t','s',0};
  92     static const WCHAR dpi_value_name[] = {'L','o','g','P','i','x','e','l','s',0};
  93     HKEY hkey;
  94
  95     if (!RegCreateKeyW( HKEY_CURRENT_CONFIG, dpi_key_name, &hkey ))
  96     {
  97         RegSetValueExW( hkey, dpi_value_name, 0, REG_DWORD, (void *)&dpi, sizeof(DWORD) );
  98         RegCloseKey( hkey );
  99     }
 100 }
 101
 102 /**********************************************************************
 103  *           fetch_display_metrics
 104  */
 105 static void fetch_display_metrics(void)
 106 {
 107     if (*p_java_vm) return;  /* for Java threads it will be set when the top view is created */
 108
 109     SERVER_START_REQ( get_window_rectangles )
 110     {
 111         req->handle = wine_server_user_handle( GetDesktopWindow() );
 112         req->relative = COORDS_CLIENT;
 113         if (!wine_server_call( req ))
 114         {
 115             screen_width  = reply->window.right;
 116             screen_height = reply->window.bottom;
 117         }
 118     }
 119     SERVER_END_REQ;
 120
 121     init_monitors( screen_width, screen_height );
 122     TRACE( "screen %ux%u\n", screen_width, screen_height );
 123 }
 124
 125
 126 /**********************************************************************
 127  *           device_init
 128  *
 129  * Perform initializations needed upon creation of the first device.
 130  */
 131 static void device_init(void)
 132 {
 133     device_init_done = TRUE;
 134     fetch_display_metrics();
 135 }
 136
 137
 138 /******************************************************************************
 139  *           create_android_physdev
 140  */
 141 static ANDROID_PDEVICE *create_android_physdev(void)
 142 {
 143     ANDROID_PDEVICE *physdev;
 144
 145     if (!device_init_done) device_init();
 146
 147     if (!(physdev = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*physdev) ))) return NULL;
 148     return physdev;
 149 }
 150
 151 /**********************************************************************
 152  *           ANDROID_CreateDC
 153  */
 154 static BOOL CDECL ANDROID_CreateDC( PHYSDEV *pdev, LPCWSTR driver, LPCWSTR device,
 155                                     LPCWSTR output, const DEVMODEW* initData )
 156 {
 157     ANDROID_PDEVICE *physdev = create_android_physdev();
 158
 159     if (!physdev) return FALSE;
 160
 161     push_dc_driver( pdev, &physdev->dev, &android_drv_funcs );
 162     return TRUE;
 163 }
 164
 165
 166 /**********************************************************************
 167  *           ANDROID_CreateCompatibleDC
 168  */
 169 static BOOL CDECL ANDROID_CreateCompatibleDC( PHYSDEV orig, PHYSDEV *pdev )
 170 {
 171     ANDROID_PDEVICE *physdev = create_android_physdev();
 172
 173     if (!physdev) return FALSE;
 174
 175     push_dc_driver( pdev, &physdev->dev, &android_drv_funcs );
 176     return TRUE;
 177 }
 178
 179
 180 /**********************************************************************
 181  *           ANDROID_DeleteDC
 182  */
 183 static BOOL CDECL ANDROID_DeleteDC( PHYSDEV dev )
 184 {
 185     HeapFree( GetProcessHeap(), 0, dev );
 186     return TRUE;
 187 }
 188
 189
 190 /***********************************************************************
 191  *           ANDROID_ChangeDisplaySettingsEx
 192  */
 193 LONG CDECL ANDROID_ChangeDisplaySettingsEx( LPCWSTR devname, LPDEVMODEW devmode,
 194                                             HWND hwnd, DWORD flags, LPVOID lpvoid )
 195 {
 196     FIXME( "(%s,%p,%p,0x%08x,%p)\n", debugstr_w( devname ), devmode, hwnd, flags, lpvoid );
 197     return DISP_CHANGE_SUCCESSFUL;
 198 }
 199
 200
 201 /***********************************************************************
 202  *           ANDROID_GetMonitorInfo
 203  */
 204 BOOL CDECL ANDROID_GetMonitorInfo( HMONITOR handle, LPMONITORINFO info )
 205 {
 206     if (handle != (HMONITOR)1)
 207     {
 208         SetLastError( ERROR_INVALID_HANDLE );
 209         return FALSE;
 210     }
 211     info->rcMonitor = default_monitor.rcMonitor;
 212     info->rcWork = default_monitor.rcWork;
 213     info->dwFlags = default_monitor.dwFlags;
 214     if (info->cbSize >= sizeof(MONITORINFOEXW))
 215         lstrcpyW( ((MONITORINFOEXW *)info)->szDevice, default_monitor.szDevice );
 216     return TRUE;
 217 }
 218
 219
 220 /***********************************************************************
 221  *           ANDROID_EnumDisplayMonitors
 222  */
 223 BOOL CDECL ANDROID_EnumDisplayMonitors( HDC hdc, LPRECT rect, MONITORENUMPROC proc, LPARAM lp )
 224 {
 225     return proc( (HMONITOR)1, 0, &default_monitor.rcMonitor, lp );
 226 }
 227
 228
 229 /***********************************************************************
 230  *           ANDROID_EnumDisplaySettingsEx
 231  */
 232 BOOL CDECL ANDROID_EnumDisplaySettingsEx( LPCWSTR name, DWORD n, LPDEVMODEW devmode, DWORD flags)
 233 {
 234     static const WCHAR dev_name[CCHDEVICENAME] =
 235         { 'W','i','n','e',' ','A','n','d','r','o','i','d',' ','d','r','i','v','e','r',0 };
 236
 237     devmode->dmSize = offsetof( DEVMODEW, dmICMMethod );
 238     devmode->dmSpecVersion = DM_SPECVERSION;
 239     devmode->dmDriverVersion = DM_SPECVERSION;
 240     memcpy( devmode->dmDeviceName, dev_name, sizeof(dev_name) );
 241     devmode->dmDriverExtra = 0;
 242     devmode->u2.dmDisplayFlags = 0;
 243     devmode->dmDisplayFrequency = 0;
 244     devmode->u1.s2.dmPosition.x = 0;
 245     devmode->u1.s2.dmPosition.y = 0;
 246     devmode->u1.s2.dmDisplayOrientation = 0;
 247     devmode->u1.s2.dmDisplayFixedOutput = 0;
 248
 249     if (n == ENUM_CURRENT_SETTINGS || n == ENUM_REGISTRY_SETTINGS) n = 0;
 250     if (n == 0)
 251     {
 252         devmode->dmPelsWidth = screen_width;
 253         devmode->dmPelsHeight = screen_height;
 254         devmode->dmBitsPerPel = screen_bpp;
 255         devmode->dmDisplayFrequency = 60;
 256         devmode->dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL | DM_DISPLAYFLAGS | DM_DISPLAYFREQUENCY;
 257         TRACE( "mode %d -- %dx%d %d bpp @%d Hz\n", n,
 258                devmode->dmPelsWidth, devmode->dmPelsHeight,
 259                devmode->dmBitsPerPel, devmode->dmDisplayFrequency );
 260         return TRUE;
 261     }
 262     TRACE( "mode %d -- not present\n", n );
 263     SetLastError( ERROR_NO_MORE_FILES );
 264     return FALSE;
 265 }
 266
 267
 268 /**********************************************************************
 269  *           ANDROID_wine_get_wgl_driver
 270  */
 271 static struct opengl_funcs * CDECL ANDROID_wine_get_wgl_driver( PHYSDEV dev, UINT version )
 272 {
 273     struct opengl_funcs *ret;
 274
 275     if (!(ret = get_wgl_driver( version )))
 276     {
 277         dev = GET_NEXT_PHYSDEV( dev, wine_get_wgl_driver );
 278         ret = dev->funcs->wine_get_wgl_driver( dev, version );
 279     }
 280     return ret;
 281 }
 282
 283
 284 static const struct gdi_dc_funcs android_drv_funcs =
 285 {
 286     NULL,                               /* pAbortDoc */
 287     NULL,                               /* pAbortPath */
 288     NULL,                               /* pAlphaBlend */
 289     NULL,                               /* pAngleArc */
 290     NULL,                               /* pArc */
 291     NULL,                               /* pArcTo */
 292     NULL,                               /* pBeginPath */
 293     NULL,                               /* pBlendImage */
 294     NULL,                               /* pChord */
 295     NULL,                               /* pCloseFigure */
 296     ANDROID_CreateCompatibleDC,         /* pCreateCompatibleDC */
 297     ANDROID_CreateDC,                   /* pCreateDC */
 298     ANDROID_DeleteDC,                   /* pDeleteDC */
 299     NULL,                               /* pDeleteObject */
 300     NULL,                               /* pDeviceCapabilities */
 301     NULL,                               /* pEllipse */
 302     NULL,                               /* pEndDoc */
 303     NULL,                               /* pEndPage */
 304     NULL,                               /* pEndPath */
 305     NULL,                               /* pEnumFonts */
 306     NULL,                               /* pEnumICMProfiles */
 307     NULL,                               /* pExtDeviceMode */
 308     NULL,                               /* pExtEscape */
 309     NULL,                               /* pExtFloodFill */
 310     NULL,                               /* pExtTextOut */
 311     NULL,                               /* pFillPath */
 312     NULL,                               /* pFillRgn */
 313     NULL,                               /* pFlattenPath */
 314     NULL,                               /* pFontIsLinked */
 315     NULL,                               /* pFrameRgn */
 316     NULL,                               /* pGdiComment */
 317     NULL,                               /* pGetBoundsRect */
 318     NULL,                               /* pGetCharABCWidths */
 319     NULL,                               /* pGetCharABCWidthsI */
 320     NULL,                               /* pGetCharWidth */
 321     NULL,                               /* pGetCharWidthInfo */
 322     NULL,                               /* pGetDeviceCaps */
 323     NULL,                               /* pGetDeviceGammaRamp */
 324     NULL,                               /* pGetFontData */
 325     NULL,                               /* pGetFontRealizationInfo */
 326     NULL,                               /* pGetFontUnicodeRanges */
 327     NULL,                               /* pGetGlyphIndices */
 328     NULL,                               /* pGetGlyphOutline */
 329     NULL,                               /* pGetICMProfile */
 330     NULL,                               /* pGetImage */
 331     NULL,                               /* pGetKerningPairs */
 332     NULL,                               /* pGetNearestColor */
 333     NULL,                               /* pGetOutlineTextMetrics */
 334     NULL,                               /* pGetPixel */
 335     NULL,                               /* pGetSystemPaletteEntries */
 336     NULL,                               /* pGetTextCharsetInfo */
 337     NULL,                               /* pGetTextExtentExPoint */
 338     NULL,                               /* pGetTextExtentExPointI */
 339     NULL,                               /* pGetTextFace */
 340     NULL,                               /* pGetTextMetrics */
 341     NULL,                               /* pGradientFill */
 342     NULL,                               /* pInvertRgn */
 343     NULL,                               /* pLineTo */
 344     NULL,                               /* pModifyWorldTransform */
 345     NULL,                               /* pMoveTo */
 346     NULL,                               /* pPaintRgn */
 347     NULL,                               /* pPatBlt */
 348     NULL,                               /* pPie */
 349     NULL,                               /* pPolyBezier */
 350     NULL,                               /* pPolyBezierTo */
 351     NULL,                               /* pPolyDraw */
 352     NULL,                               /* pPolyPolygon */
 353     NULL,                               /* pPolyPolyline */
 354     NULL,                               /* pPolylineTo */
 355     NULL,                               /* pPutImage */
 356     NULL,                               /* pRealizeDefaultPalette */
 357     NULL,                               /* pRealizePalette */
 358     NULL,                               /* pRectangle */
 359     NULL,                               /* pResetDC */
 360     NULL,                               /* pRestoreDC */
 361     NULL,                               /* pRoundRect */
 362     NULL,                               /* pSelectBitmap */
 363     NULL,                               /* pSelectBrush */
 364     NULL,                               /* pSelectClipPath */
 365     NULL,                               /* pSelectFont */
 366     NULL,                               /* pSelectPen */
 367     NULL,                               /* pSetBkColor */
 368     NULL,                               /* pSetBoundsRect */
 369     NULL,                               /* pSetDCBrushColor */
 370     NULL,                               /* pSetDCPenColor */
 371     NULL,                               /* pSetDIBitsToDevice */
 372     NULL,                               /* pSetDeviceClipping */
 373     NULL,                               /* pSetDeviceGammaRamp */
 374     NULL,                               /* pSetPixel */
 375     NULL,                               /* pSetTextColor */
 376     NULL,                               /* pSetWorldTransform */
 377     NULL,                               /* pStartDoc */
 378     NULL,                               /* pStartPage */
 379     NULL,                               /* pStretchBlt */
 380     NULL,                               /* pStretchDIBits */
 381     NULL,                               /* pStrokeAndFillPath */
 382     NULL,                               /* pStrokePath */
 383     NULL,                               /* pUnrealizePalette */
 384     NULL,                               /* pWidenPath */
 385     NULL,                               /* pD3DKMTCheckVidPnExclusiveOwnership */
 386     NULL,                               /* pD3DKMTSetVidPnSourceOwner */
 387     ANDROID_wine_get_wgl_driver,        /* wine_get_wgl_driver */
 388     NULL,                               /* wine_get_vulkan_driver */
 389     GDI_PRIORITY_GRAPHICS_DRV           /* priority */
 390 };
 391
 392
 393 /******************************************************************************
 394  *           ANDROID_get_gdi_driver
 395  */
 396 const struct gdi_dc_funcs * CDECL ANDROID_get_gdi_driver( unsigned int version )
 397 {
 398     if (version != WINE_GDI_DRIVER_VERSION)
 399     {
 400         ERR( "version mismatch, gdi32 wants %u but wineandroid has %u\n", version, WINE_GDI_DRIVER_VERSION );
 401         return NULL;
 402     }
 403     return &android_drv_funcs;
 404 }
 405
 406
 407 static const JNINativeMethod methods[] =
 408 {
 409     { "wine_desktop_changed", "(II)V", desktop_changed },
 410     { "wine_config_changed", "(I)V", config_changed },
 411     { "wine_surface_changed", "(ILandroid/view/Surface;Z)V", surface_changed },
 412     { "wine_motion_event", "(IIIIII)Z", motion_event },
 413     { "wine_keyboard_event", "(IIII)Z", keyboard_event },
 414 };
 415
 416 #define DECL_FUNCPTR(f) typeof(f) * p##f = NULL
 417 #define LOAD_FUNCPTR(lib, func) do { \
 418     if ((p##func = dlsym( lib, #func )) == NULL) \
 419         { ERR( "can't find symbol %s\n", #func); return; } \
 420     } while(0)
 421
 422 DECL_FUNCPTR( __android_log_print );
 423 DECL_FUNCPTR( ANativeWindow_fromSurface );
 424 DECL_FUNCPTR( ANativeWindow_release );
 425 DECL_FUNCPTR( hw_get_module );
 426
 427 #ifndef DT_GNU_HASH
 428 #define DT_GNU_HASH 0x6ffffef5
 429 #endif
 430
 431 static unsigned int gnu_hash( const char *name )
 432 {
 433     unsigned int h = 5381;
 434     while (*name) h = h * 33 + (unsigned char)*name++;
 435     return h;
 436 }
 437
 438 static unsigned int hash_symbol( const char *name )
 439 {
 440     unsigned int hi, hash = 0;
 441     while (*name)
 442     {
 443         hash = (hash << 4) + (unsigned char)*name++;
 444         hi = hash & 0xf0000000;
 445         hash ^= hi;
 446         hash ^= hi >> 24;
 447     }
 448     return hash;
 449 }
 450
 451 static void *find_symbol( const struct dl_phdr_info* info, const char *var, int type )
 452 {
 453     const ElfW(Dyn) *dyn = NULL;
 454     const ElfW(Phdr) *ph;
 455     const ElfW(Sym) *symtab = NULL;
 456     const Elf32_Word *hashtab = NULL;
 457     const Elf32_Word *gnu_hashtab = NULL;
 458     const char *strings = NULL;
 459     Elf32_Word idx;
 460
 461     for (ph = info->dlpi_phdr; ph < &info->dlpi_phdr[info->dlpi_phnum]; ++ph)
 462     {
 463         if (PT_DYNAMIC == ph->p_type)
 464         {
 465             dyn = (const ElfW(Dyn) *)(info->dlpi_addr + ph->p_vaddr);
 466             break;
 467         }
 468     }
 469     if (!dyn) return NULL;
 470
 471     while (dyn->d_tag)
 472     {
 473         if (dyn->d_tag == DT_STRTAB)
 474             strings = (const char*)(info->dlpi_addr + dyn->d_un.d_ptr);
 475         if (dyn->d_tag == DT_SYMTAB)
 476             symtab = (const ElfW(Sym) *)(info->dlpi_addr + dyn->d_un.d_ptr);
 477         if (dyn->d_tag == DT_HASH)
 478             hashtab = (const Elf32_Word *)(info->dlpi_addr + dyn->d_un.d_ptr);
 479         if (dyn->d_tag == DT_GNU_HASH)
 480             gnu_hashtab = (const Elf32_Word *)(info->dlpi_addr + dyn->d_un.d_ptr);
 481         dyn++;
 482     }
 483
 484     if (!symtab || !strings) return NULL;
 485
 486     if (gnu_hashtab)  /* new style hash table */
 487     {
 488         const unsigned int hash   = gnu_hash(var);
 489         const Elf32_Word nbuckets = gnu_hashtab[0];
 490         const Elf32_Word symbias  = gnu_hashtab[1];
 491         const Elf32_Word nwords   = gnu_hashtab[2];
 492         const ElfW(Addr) *bitmask = (const ElfW(Addr) *)(gnu_hashtab + 4);
 493         const Elf32_Word *buckets = (const Elf32_Word *)(bitmask + nwords);
 494         const Elf32_Word *chains  = buckets + nbuckets - symbias;
 495
 496         if (!(idx = buckets[hash % nbuckets])) return NULL;
 497         do
 498         {
 499             if ((chains[idx] & ~1u) == (hash & ~1u) &&
 500                 ELF32_ST_BIND(symtab[idx].st_info) == STB_GLOBAL &&
 501                 ELF32_ST_TYPE(symtab[idx].st_info) == type &&
 502                 !strcmp( strings + symtab[idx].st_name, var ))
 503                 return (void *)(info->dlpi_addr + symtab[idx].st_value);
 504         } while (!(chains[idx++] & 1u));
 505     }
 506     else if (hashtab)  /* old style hash table */
 507     {
 508         const unsigned int hash   = hash_symbol( var );
 509         const Elf32_Word nbuckets = hashtab[0];
 510         const Elf32_Word *buckets = hashtab + 2;
 511         const Elf32_Word *chains  = buckets + nbuckets;
 512
 513         for (idx = buckets[hash % nbuckets]; idx; idx = chains[idx])
 514         {
 515             if (ELF32_ST_BIND(symtab[idx].st_info) == STB_GLOBAL &&
 516                 ELF32_ST_TYPE(symtab[idx].st_info) == type &&
 517                 !strcmp( strings + symtab[idx].st_name, var ))
 518                 return (void *)(info->dlpi_addr + symtab[idx].st_value);
 519         }
 520     }
 521     return NULL;
 522 }
 523
 524 static int enum_libs( struct dl_phdr_info* info, size_t size, void* data )
 525 {
 526     const char *p;
 527
 528     if (!info->dlpi_name) return 0;
 529     if (!(p = strrchr( info->dlpi_name, '/' ))) return 0;
 530     if (strcmp( p, "/libhardware.so" )) return 0;
 531     TRACE( "found libhardware at %p\n", info->dlpi_phdr );
 532     phw_get_module = find_symbol( info, "hw_get_module", STT_FUNC );
 533     return 1;
 534 }
 535
 536 static void load_hardware_libs(void)
 537 {
 538     const struct hw_module_t *module;
 539     int ret;
 540     void *libhardware;
 541
 542     if ((libhardware = dlopen( "libhardware.so", RTLD_GLOBAL )))
 543     {
 544         LOAD_FUNCPTR( libhardware, hw_get_module );
 545     }
 546     else
 547     {
 548         /* Android >= N disallows loading libhardware, so we load libandroid (which imports
 549          * libhardware), and then we can find libhardware in the list of loaded libraries.
 550          */
 551         if (!dlopen( "libandroid.so", RTLD_GLOBAL ))
 552         {
 553             ERR( "failed to load libandroid.so: %s\n", dlerror() );
 554             return;
 555         }
 556         dl_iterate_phdr( enum_libs, 0 );
 557         if (!phw_get_module)
 558         {
 559             ERR( "failed to find hw_get_module\n" );
 560             return;
 561         }
 562     }
 563
 564     if ((ret = phw_get_module( GRALLOC_HARDWARE_MODULE_ID, &module )))
 565     {
 566         ERR( "failed to load gralloc module err %d\n", ret );
 567         return;
 568     }
 569
 570     init_gralloc( module );
 571 }
 572
 573 static void load_android_libs(void)
 574 {
 575     void *libandroid, *liblog;
 576
 577     if (!(libandroid = dlopen( "libandroid.so", RTLD_GLOBAL )))
 578     {
 579         ERR( "failed to load libandroid.so: %s\n", dlerror() );
 580         return;
 581     }
 582     if (!(liblog = dlopen( "liblog.so", RTLD_GLOBAL )))
 583     {
 584         ERR( "failed to load liblog.so: %s\n", dlerror() );
 585         return;
 586     }
 587     LOAD_FUNCPTR( liblog, __android_log_print );
 588     LOAD_FUNCPTR( libandroid, ANativeWindow_fromSurface );
 589     LOAD_FUNCPTR( libandroid, ANativeWindow_release );
 590 }
 591
 592 #undef DECL_FUNCPTR
 593 #undef LOAD_FUNCPTR
 594
 595 JavaVM **p_java_vm = NULL;
 596 jobject *p_java_object = NULL;
 597 unsigned short *p_java_gdt_sel = NULL;
 598
 599 static BOOL process_attach(void)
 600 {
 601     jclass class;
 602     jobject object;
 603     JNIEnv *jni_env;
 604     JavaVM *java_vm;
 605     void *ntdll;
 606
 607     if (!(ntdll = dlopen( "ntdll.so", RTLD_NOW ))) return FALSE;
 608
 609     p_java_vm = dlsym( ntdll, "java_vm" );
 610     p_java_object = dlsym( ntdll, "java_object" );
 611     p_java_gdt_sel = dlsym( ntdll, "java_gdt_sel" );
 612
 613     object = *p_java_object;
 614
 615     load_hardware_libs();
 616
 617     if ((java_vm = *p_java_vm))  /* running under Java */
 618     {
 619 #ifdef __i386__
 620         WORD old_fs;
 621         __asm__( "mov %%fs,%0" : "=r" (old_fs) );
 622 #endif
 623         load_android_libs();
 624         (*java_vm)->AttachCurrentThread( java_vm, &jni_env, 0 );
 625         class = (*jni_env)->GetObjectClass( jni_env, object );
 626         (*jni_env)->RegisterNatives( jni_env, class, methods, ARRAY_SIZE( methods ));
 627         (*jni_env)->DeleteLocalRef( jni_env, class );
 628 #ifdef __i386__
 629         /* the Java VM hijacks %fs for its own purposes, restore it */
 630         __asm__( "mov %0,%%fs" :: "r" (old_fs) );
 631 #endif
 632     }
 633     return TRUE;
 634 }
 635
 636 /***********************************************************************
 637  *       dll initialisation routine
 638  */
 639 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
 640 {
 641     switch (reason)
 642     {
 643     case DLL_PROCESS_ATTACH:
 644         DisableThreadLibraryCalls( inst );
 645         return process_attach();
 646     }
 647     return TRUE;
 648 }