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