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
  25 #include <stdarg.h>
  26 #include <string.h>
  27 #include <dlfcn.h>
  28 #include <link.h>
  29
  30 #include "ntstatus.h"
  31 #define WIN32_NO_STATUS
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "winreg.h"
  35 #include "android.h"
  36 #include "wine/server.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(android);
  40
  41 unsigned int screen_width = 0;
  42 unsigned int screen_height = 0;
  43 RECT virtual_screen_rect = { 0, 0, 0, 0 };
  44
  45 static const unsigned int screen_bpp = 32;  /* we don't support other modes */
  46
  47 static RECT monitor_rc_work;
  48 static int device_init_done;
  49 static BOOL force_display_devices_refresh;
  50
  51 typedef struct
  52 {
  53     struct gdi_physdev dev;
  54 } ANDROID_PDEVICE;
  55
  56 static const struct user_driver_funcs android_drv_funcs;
  57
  58
  59 /******************************************************************************
  60  *           init_monitors
  61  */
  62 void init_monitors( int width, int height )
  63 {
  64     static const WCHAR trayW[] = {'S','h','e','l','l','_','T','r','a','y','W','n','d',0};
  65     UNICODE_STRING name;
  66     RECT rect;
  67     HWND hwnd;
  68
  69     RtlInitUnicodeString( &name, trayW );
  70     hwnd = NtUserFindWindowEx( 0, 0, &name, NULL, 0 );
  71
  72     virtual_screen_rect.right = width;
  73     virtual_screen_rect.bottom = height;
  74     monitor_rc_work = virtual_screen_rect;
  75
  76     if (!hwnd || !NtUserIsWindowVisible( hwnd )) return;
  77     if (!NtUserGetWindowRect( hwnd, &rect )) return;
  78     if (rect.top) monitor_rc_work.bottom = rect.top;
  79     else monitor_rc_work.top = rect.bottom;
  80     TRACE( "found tray %p %s work area %s\n", hwnd,
  81            wine_dbgstr_rect( &rect ), wine_dbgstr_rect( &monitor_rc_work ));
  82
  83     if (*p_java_vm) /* if we're notified from Java thread, update registry */
  84     {
  85         UINT32 num_path, num_mode;
  86         force_display_devices_refresh = TRUE;
  87         /* trigger refresh in win32u */
  88         NtUserGetDisplayConfigBufferSizes( QDC_ONLY_ACTIVE_PATHS, &num_path, &num_mode );
  89     }
  90 }
  91
  92
  93 /* wrapper for NtCreateKey that creates the key recursively if necessary */
  94 static HKEY reg_create_key( const WCHAR *name, ULONG name_len )
  95 {
  96     UNICODE_STRING nameW = { name_len, name_len, (WCHAR *)name };
  97     OBJECT_ATTRIBUTES attr;
  98     NTSTATUS status;
  99     HANDLE ret;
 100
 101     attr.Length = sizeof(attr);
 102     attr.RootDirectory = 0;
 103     attr.ObjectName = &nameW;
 104     attr.Attributes = 0;
 105     attr.SecurityDescriptor = NULL;
 106     attr.SecurityQualityOfService = NULL;
 107
 108     status = NtCreateKey( &ret, MAXIMUM_ALLOWED, &attr, 0, NULL, 0, NULL );
 109     if (status == STATUS_OBJECT_NAME_NOT_FOUND)
 110     {
 111         static const WCHAR registry_rootW[] = { '\\','R','e','g','i','s','t','r','y','\\' };
 112         DWORD pos = 0, i = 0, len = name_len / sizeof(WCHAR);
 113
 114         /* don't try to create registry root */
 115         if (len > ARRAY_SIZE(registry_rootW) &&
 116             !memcmp( name, registry_rootW, sizeof(registry_rootW) ))
 117             i += ARRAY_SIZE(registry_rootW);
 118
 119         while (i < len && name[i] != '\\') i++;
 120         if (i == len) return 0;
 121         for (;;)
 122         {
 123             nameW.Buffer = (WCHAR *)name + pos;
 124             nameW.Length = (i - pos) * sizeof(WCHAR);
 125             status = NtCreateKey( &ret, MAXIMUM_ALLOWED, &attr, 0, NULL, 0, NULL );
 126
 127             if (attr.RootDirectory) NtClose( attr.RootDirectory );
 128             if (status) return 0;
 129             if (i == len) break;
 130             attr.RootDirectory = ret;
 131             while (i < len && name[i] == '\\') i++;
 132             pos = i;
 133             while (i < len && name[i] != '\\') i++;
 134         }
 135     }
 136     return ret;
 137 }
 138
 139
 140 /******************************************************************************
 141  *           set_screen_dpi
 142  */
 143 void set_screen_dpi( DWORD dpi )
 144 {
 145     static const WCHAR dpi_value_name[] = {'L','o','g','P','i','x','e','l','s',0};
 146     static const WCHAR dpi_key_name[] =
 147     {
 148         '\\','R','e','g','i','s','t','r','y',
 149         '\\','M','a','c','h','i','n','e',
 150         '\\','S','y','s','t','e','m',
 151         '\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t',
 152         '\\','H','a','r','d','w','a','r','e',' ','P','r','o','f','i','l','e','s',
 153         '\\','C','u','r','r','e','n','t',
 154         '\\','S','o','f','t','w','a','r','e',
 155         '\\','F','o','n','t','s'
 156     };
 157     HKEY hkey;
 158
 159     if ((hkey = reg_create_key( dpi_key_name, sizeof(dpi_key_name ))))
 160     {
 161         UNICODE_STRING name;
 162         RtlInitUnicodeString( &name, dpi_value_name );
 163         NtSetValueKey( hkey, &name, 0, REG_DWORD, &dpi, sizeof(dpi) );
 164         NtClose( hkey );
 165     }
 166 }
 167
 168 /**********************************************************************
 169  *           fetch_display_metrics
 170  */
 171 static void fetch_display_metrics(void)
 172 {
 173     if (*p_java_vm) return;  /* for Java threads it will be set when the top view is created */
 174
 175     SERVER_START_REQ( get_window_rectangles )
 176     {
 177         req->handle = wine_server_user_handle( NtUserGetDesktopWindow() );
 178         req->relative = COORDS_CLIENT;
 179         if (!wine_server_call( req ))
 180         {
 181             screen_width  = reply->window.right;
 182             screen_height = reply->window.bottom;
 183         }
 184     }
 185     SERVER_END_REQ;
 186
 187     init_monitors( screen_width, screen_height );
 188     TRACE( "screen %ux%u\n", screen_width, screen_height );
 189 }
 190
 191
 192 /**********************************************************************
 193  *           device_init
 194  *
 195  * Perform initializations needed upon creation of the first device.
 196  */
 197 static void device_init(void)
 198 {
 199     device_init_done = TRUE;
 200     fetch_display_metrics();
 201 }
 202
 203
 204 /******************************************************************************
 205  *           create_android_physdev
 206  */
 207 static ANDROID_PDEVICE *create_android_physdev(void)
 208 {
 209     ANDROID_PDEVICE *physdev;
 210
 211     if (!device_init_done) device_init();
 212
 213     if (!(physdev = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*physdev) ))) return NULL;
 214     return physdev;
 215 }
 216
 217 /**********************************************************************
 218  *           ANDROID_CreateDC
 219  */
 220 static BOOL CDECL ANDROID_CreateDC( PHYSDEV *pdev, LPCWSTR device, LPCWSTR output,
 221                                     const DEVMODEW *initData )
 222 {
 223     ANDROID_PDEVICE *physdev = create_android_physdev();
 224
 225     if (!physdev) return FALSE;
 226
 227     push_dc_driver( pdev, &physdev->dev, &android_drv_funcs.dc_funcs );
 228     return TRUE;
 229 }
 230
 231
 232 /**********************************************************************
 233  *           ANDROID_CreateCompatibleDC
 234  */
 235 static BOOL CDECL ANDROID_CreateCompatibleDC( PHYSDEV orig, PHYSDEV *pdev )
 236 {
 237     ANDROID_PDEVICE *physdev = create_android_physdev();
 238
 239     if (!physdev) return FALSE;
 240
 241     push_dc_driver( pdev, &physdev->dev, &android_drv_funcs.dc_funcs );
 242     return TRUE;
 243 }
 244
 245
 246 /**********************************************************************
 247  *           ANDROID_DeleteDC
 248  */
 249 static BOOL CDECL ANDROID_DeleteDC( PHYSDEV dev )
 250 {
 251     HeapFree( GetProcessHeap(), 0, dev );
 252     return TRUE;
 253 }
 254
 255
 256 /***********************************************************************
 257  *           ANDROID_ChangeDisplaySettingsEx
 258  */
 259 LONG ANDROID_ChangeDisplaySettingsEx( LPCWSTR devname, LPDEVMODEW devmode,
 260                                       HWND hwnd, DWORD flags, LPVOID lpvoid )
 261 {
 262     FIXME( "(%s,%p,%p,0x%08x,%p)\n", debugstr_w( devname ), devmode, hwnd, flags, lpvoid );
 263     return DISP_CHANGE_SUCCESSFUL;
 264 }
 265
 266
 267 /***********************************************************************
 268  *           ANDROID_UpdateDisplayDevices
 269  */
 270 void ANDROID_UpdateDisplayDevices( const struct gdi_device_manager *device_manager,
 271                                    BOOL force, void *param )
 272 {
 273     if (force || force_display_devices_refresh)
 274     {
 275         struct gdi_monitor gdi_monitor =
 276         {
 277             .rc_monitor = virtual_screen_rect,
 278             .rc_work = monitor_rc_work,
 279             .state_flags = DISPLAY_DEVICE_ACTIVE | DISPLAY_DEVICE_ATTACHED,
 280         };
 281         device_manager->add_monitor( &gdi_monitor, param );
 282         force_display_devices_refresh = FALSE;
 283     }
 284 }
 285
 286
 287 /***********************************************************************
 288  *           ANDROID_EnumDisplaySettingsEx
 289  */
 290 BOOL ANDROID_EnumDisplaySettingsEx( LPCWSTR name, DWORD n, LPDEVMODEW devmode, DWORD flags )
 291 {
 292     static const WCHAR dev_name[CCHDEVICENAME] =
 293         { 'W','i','n','e',' ','A','n','d','r','o','i','d',' ','d','r','i','v','e','r',0 };
 294
 295     devmode->dmSize = offsetof( DEVMODEW, dmICMMethod );
 296     devmode->dmSpecVersion = DM_SPECVERSION;
 297     devmode->dmDriverVersion = DM_SPECVERSION;
 298     memcpy( devmode->dmDeviceName, dev_name, sizeof(dev_name) );
 299     devmode->dmDriverExtra = 0;
 300     devmode->u2.dmDisplayFlags = 0;
 301     devmode->dmDisplayFrequency = 0;
 302     devmode->u1.s2.dmPosition.x = 0;
 303     devmode->u1.s2.dmPosition.y = 0;
 304     devmode->u1.s2.dmDisplayOrientation = 0;
 305     devmode->u1.s2.dmDisplayFixedOutput = 0;
 306
 307     if (n == ENUM_CURRENT_SETTINGS || n == ENUM_REGISTRY_SETTINGS) n = 0;
 308     if (n == 0)
 309     {
 310         devmode->dmPelsWidth = screen_width;
 311         devmode->dmPelsHeight = screen_height;
 312         devmode->dmBitsPerPel = screen_bpp;
 313         devmode->dmDisplayFrequency = 60;
 314         devmode->dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL | DM_DISPLAYFLAGS | DM_DISPLAYFREQUENCY;
 315         TRACE( "mode %d -- %dx%d %d bpp @%d Hz\n", n,
 316                devmode->dmPelsWidth, devmode->dmPelsHeight,
 317                devmode->dmBitsPerPel, devmode->dmDisplayFrequency );
 318         return TRUE;
 319     }
 320     TRACE( "mode %d -- not present\n", n );
 321     SetLastError( ERROR_NO_MORE_FILES );
 322     return FALSE;
 323 }
 324
 325
 326 /**********************************************************************
 327  *           ANDROID_wine_get_wgl_driver
 328  */
 329 static struct opengl_funcs *ANDROID_wine_get_wgl_driver( UINT version )
 330 {
 331     return get_wgl_driver( version );
 332 }
 333
 334
 335 static const struct user_driver_funcs android_drv_funcs =
 336 {
 337     .dc_funcs.pCreateCompatibleDC = ANDROID_CreateCompatibleDC,
 338     .dc_funcs.pCreateDC = ANDROID_CreateDC,
 339     .dc_funcs.pDeleteDC = ANDROID_DeleteDC,
 340     .dc_funcs.priority = GDI_PRIORITY_GRAPHICS_DRV,
 341
 342     .pGetKeyNameText = ANDROID_GetKeyNameText,
 343     .pMapVirtualKeyEx = ANDROID_MapVirtualKeyEx,
 344     .pVkKeyScanEx = ANDROID_VkKeyScanEx,
 345     .pSetCursor = ANDROID_SetCursor,
 346     .pChangeDisplaySettingsEx = ANDROID_ChangeDisplaySettingsEx,
 347     .pEnumDisplaySettingsEx = ANDROID_EnumDisplaySettingsEx,
 348     .pUpdateDisplayDevices = ANDROID_UpdateDisplayDevices,
 349     .pCreateWindow = ANDROID_CreateWindow,
 350     .pDesktopWindowProc = ANDROID_DesktopWindowProc,
 351     .pDestroyWindow = ANDROID_DestroyWindow,
 352     .pMsgWaitForMultipleObjectsEx = ANDROID_MsgWaitForMultipleObjectsEx,
 353     .pSetCapture = ANDROID_SetCapture,
 354     .pSetLayeredWindowAttributes = ANDROID_SetLayeredWindowAttributes,
 355     .pSetParent = ANDROID_SetParent,
 356     .pSetWindowRgn = ANDROID_SetWindowRgn,
 357     .pSetWindowStyle = ANDROID_SetWindowStyle,
 358     .pShowWindow = ANDROID_ShowWindow,
 359     .pUpdateLayeredWindow = ANDROID_UpdateLayeredWindow,
 360     .pWindowMessage = ANDROID_WindowMessage,
 361     .pWindowPosChanging = ANDROID_WindowPosChanging,
 362     .pWindowPosChanged = ANDROID_WindowPosChanged,
 363     .pwine_get_wgl_driver = ANDROID_wine_get_wgl_driver,
 364 };
 365
 366
 367 static const JNINativeMethod methods[] =
 368 {
 369     { "wine_desktop_changed", "(II)V", desktop_changed },
 370     { "wine_config_changed", "(I)V", config_changed },
 371     { "wine_surface_changed", "(ILandroid/view/Surface;Z)V", surface_changed },
 372     { "wine_motion_event", "(IIIIII)Z", motion_event },
 373     { "wine_keyboard_event", "(IIII)Z", keyboard_event },
 374 };
 375
 376 #define DECL_FUNCPTR(f) typeof(f) * p##f = NULL
 377 #define LOAD_FUNCPTR(lib, func) do { \
 378     if ((p##func = dlsym( lib, #func )) == NULL) \
 379         { ERR( "can't find symbol %s\n", #func); return; } \
 380     } while(0)
 381
 382 DECL_FUNCPTR( __android_log_print );
 383 DECL_FUNCPTR( ANativeWindow_fromSurface );
 384 DECL_FUNCPTR( ANativeWindow_release );
 385 DECL_FUNCPTR( hw_get_module );
 386
 387 #ifndef DT_GNU_HASH
 388 #define DT_GNU_HASH 0x6ffffef5
 389 #endif
 390
 391 static unsigned int gnu_hash( const char *name )
 392 {
 393     unsigned int h = 5381;
 394     while (*name) h = h * 33 + (unsigned char)*name++;
 395     return h;
 396 }
 397
 398 static unsigned int hash_symbol( const char *name )
 399 {
 400     unsigned int hi, hash = 0;
 401     while (*name)
 402     {
 403         hash = (hash << 4) + (unsigned char)*name++;
 404         hi = hash & 0xf0000000;
 405         hash ^= hi;
 406         hash ^= hi >> 24;
 407     }
 408     return hash;
 409 }
 410
 411 static void *find_symbol( const struct dl_phdr_info* info, const char *var, int type )
 412 {
 413     const ElfW(Dyn) *dyn = NULL;
 414     const ElfW(Phdr) *ph;
 415     const ElfW(Sym) *symtab = NULL;
 416     const Elf32_Word *hashtab = NULL;
 417     const Elf32_Word *gnu_hashtab = NULL;
 418     const char *strings = NULL;
 419     Elf32_Word idx;
 420
 421     for (ph = info->dlpi_phdr; ph < &info->dlpi_phdr[info->dlpi_phnum]; ++ph)
 422     {
 423         if (PT_DYNAMIC == ph->p_type)
 424         {
 425             dyn = (const ElfW(Dyn) *)(info->dlpi_addr + ph->p_vaddr);
 426             break;
 427         }
 428     }
 429     if (!dyn) return NULL;
 430
 431     while (dyn->d_tag)
 432     {
 433         if (dyn->d_tag == DT_STRTAB)
 434             strings = (const char*)(info->dlpi_addr + dyn->d_un.d_ptr);
 435         if (dyn->d_tag == DT_SYMTAB)
 436             symtab = (const ElfW(Sym) *)(info->dlpi_addr + dyn->d_un.d_ptr);
 437         if (dyn->d_tag == DT_HASH)
 438             hashtab = (const Elf32_Word *)(info->dlpi_addr + dyn->d_un.d_ptr);
 439         if (dyn->d_tag == DT_GNU_HASH)
 440             gnu_hashtab = (const Elf32_Word *)(info->dlpi_addr + dyn->d_un.d_ptr);
 441         dyn++;
 442     }
 443
 444     if (!symtab || !strings) return NULL;
 445
 446     if (gnu_hashtab)  /* new style hash table */
 447     {
 448         const unsigned int hash   = gnu_hash(var);
 449         const Elf32_Word nbuckets = gnu_hashtab[0];
 450         const Elf32_Word symbias  = gnu_hashtab[1];
 451         const Elf32_Word nwords   = gnu_hashtab[2];
 452         const ElfW(Addr) *bitmask = (const ElfW(Addr) *)(gnu_hashtab + 4);
 453         const Elf32_Word *buckets = (const Elf32_Word *)(bitmask + nwords);
 454         const Elf32_Word *chains  = buckets + nbuckets - symbias;
 455
 456         if (!(idx = buckets[hash % nbuckets])) return NULL;
 457         do
 458         {
 459             if ((chains[idx] & ~1u) == (hash & ~1u) &&
 460                 ELF32_ST_BIND(symtab[idx].st_info) == STB_GLOBAL &&
 461                 ELF32_ST_TYPE(symtab[idx].st_info) == type &&
 462                 !strcmp( strings + symtab[idx].st_name, var ))
 463                 return (void *)(info->dlpi_addr + symtab[idx].st_value);
 464         } while (!(chains[idx++] & 1u));
 465     }
 466     else if (hashtab)  /* old style hash table */
 467     {
 468         const unsigned int hash   = hash_symbol( var );
 469         const Elf32_Word nbuckets = hashtab[0];
 470         const Elf32_Word *buckets = hashtab + 2;
 471         const Elf32_Word *chains  = buckets + nbuckets;
 472
 473         for (idx = buckets[hash % nbuckets]; idx; idx = chains[idx])
 474         {
 475             if (ELF32_ST_BIND(symtab[idx].st_info) == STB_GLOBAL &&
 476                 ELF32_ST_TYPE(symtab[idx].st_info) == type &&
 477                 !strcmp( strings + symtab[idx].st_name, var ))
 478                 return (void *)(info->dlpi_addr + symtab[idx].st_value);
 479         }
 480     }
 481     return NULL;
 482 }
 483
 484 static int enum_libs( struct dl_phdr_info* info, size_t size, void* data )
 485 {
 486     const char *p;
 487
 488     if (!info->dlpi_name) return 0;
 489     if (!(p = strrchr( info->dlpi_name, '/' ))) return 0;
 490     if (strcmp( p, "/libhardware.so" )) return 0;
 491     TRACE( "found libhardware at %p\n", info->dlpi_phdr );
 492     phw_get_module = find_symbol( info, "hw_get_module", STT_FUNC );
 493     return 1;
 494 }
 495
 496 static void load_hardware_libs(void)
 497 {
 498     const struct hw_module_t *module;
 499     int ret;
 500     void *libhardware;
 501
 502     if ((libhardware = dlopen( "libhardware.so", RTLD_GLOBAL )))
 503     {
 504         LOAD_FUNCPTR( libhardware, hw_get_module );
 505     }
 506     else
 507     {
 508         /* Android >= N disallows loading libhardware, so we load libandroid (which imports
 509          * libhardware), and then we can find libhardware in the list of loaded libraries.
 510          */
 511         if (!dlopen( "libandroid.so", RTLD_GLOBAL ))
 512         {
 513             ERR( "failed to load libandroid.so: %s\n", dlerror() );
 514             return;
 515         }
 516         dl_iterate_phdr( enum_libs, 0 );
 517         if (!phw_get_module)
 518         {
 519             ERR( "failed to find hw_get_module\n" );
 520             return;
 521         }
 522     }
 523
 524     if ((ret = phw_get_module( GRALLOC_HARDWARE_MODULE_ID, &module )))
 525     {
 526         ERR( "failed to load gralloc module err %d\n", ret );
 527         return;
 528     }
 529
 530     init_gralloc( module );
 531 }
 532
 533 static void load_android_libs(void)
 534 {
 535     void *libandroid, *liblog;
 536
 537     if (!(libandroid = dlopen( "libandroid.so", RTLD_GLOBAL )))
 538     {
 539         ERR( "failed to load libandroid.so: %s\n", dlerror() );
 540         return;
 541     }
 542     if (!(liblog = dlopen( "liblog.so", RTLD_GLOBAL )))
 543     {
 544         ERR( "failed to load liblog.so: %s\n", dlerror() );
 545         return;
 546     }
 547     LOAD_FUNCPTR( liblog, __android_log_print );
 548     LOAD_FUNCPTR( libandroid, ANativeWindow_fromSurface );
 549     LOAD_FUNCPTR( libandroid, ANativeWindow_release );
 550 }
 551
 552 #undef DECL_FUNCPTR
 553 #undef LOAD_FUNCPTR
 554
 555 JavaVM **p_java_vm = NULL;
 556 jobject *p_java_object = NULL;
 557 unsigned short *p_java_gdt_sel = NULL;
 558
 559 static BOOL process_attach(void)
 560 {
 561     jclass class;
 562     jobject object;
 563     JNIEnv *jni_env;
 564     JavaVM *java_vm;
 565     void *ntdll;
 566
 567     if (!(ntdll = dlopen( "ntdll.so", RTLD_NOW ))) return FALSE;
 568
 569     p_java_vm = dlsym( ntdll, "java_vm" );
 570     p_java_object = dlsym( ntdll, "java_object" );
 571     p_java_gdt_sel = dlsym( ntdll, "java_gdt_sel" );
 572
 573     object = *p_java_object;
 574
 575     load_hardware_libs();
 576
 577     if ((java_vm = *p_java_vm))  /* running under Java */
 578     {
 579 #ifdef __i386__
 580         WORD old_fs;
 581         __asm__( "mov %%fs,%0" : "=r" (old_fs) );
 582 #endif
 583         load_android_libs();
 584         (*java_vm)->AttachCurrentThread( java_vm, &jni_env, 0 );
 585         class = (*jni_env)->GetObjectClass( jni_env, object );
 586         (*jni_env)->RegisterNatives( jni_env, class, methods, ARRAY_SIZE( methods ));
 587         (*jni_env)->DeleteLocalRef( jni_env, class );
 588 #ifdef __i386__
 589         /* the Java VM hijacks %fs for its own purposes, restore it */
 590         __asm__( "mov %0,%%fs" :: "r" (old_fs) );
 591 #endif
 592     }
 593     __wine_set_user_driver( &android_drv_funcs, WINE_GDI_DRIVER_VERSION );
 594     return TRUE;
 595 }
 596
 597 /***********************************************************************
 598  *       dll initialisation routine
 599  */
 600 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
 601 {
 602     switch (reason)
 603     {
 604     case DLL_PROCESS_ATTACH:
 605         DisableThreadLibraryCalls( inst );
 606         return process_attach();
 607     }
 608     return TRUE;
 609 }