2 * NE resource functions
4 * Copyright 1993 Robert J. Amstadt
5 * Copyright 1995 Alexandre Julliard
6 * Copyright 1997 Alex Korobka
12 #include <sys/types.h>
17 #include "wine/winbase16.h"
18 #include "wine/library.h"
22 #include "debugtools.h"
24 DEFAULT_DEBUG_CHANNEL(resource);
26 #define NEXT_TYPEINFO(pTypeInfo) ((NE_TYPEINFO *)((char*)((pTypeInfo) + 1) + \
27 (pTypeInfo)->count * sizeof(NE_NAMEINFO)))
29 static FARPROC16 DefResourceHandlerProc = (FARPROC16)0xffffffff;
31 /* already defined in segment.c glue code */
32 extern WORD CALLBACK NE_CallTo16_word_www(FARPROC16,WORD,WORD,WORD);
34 /***********************************************************************
37 * Find the type and resource id from their names.
38 * Return value is MAKELONG( typeId, resId ), or 0 if not found.
40 static DWORD NE_FindNameTableId( NE_MODULE *pModule, LPCSTR typeId, LPCSTR resId )
42 NE_TYPEINFO *pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->res_table + 2);
43 NE_NAMEINFO *pNameInfo;
49 for (; pTypeInfo->type_id != 0;
50 pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo+1) +
51 pTypeInfo->count * sizeof(NE_NAMEINFO)))
53 if (pTypeInfo->type_id != 0x800f) continue;
54 pNameInfo = (NE_NAMEINFO *)(pTypeInfo + 1);
55 for (count = pTypeInfo->count; count > 0; count--, pNameInfo++)
57 TRACE("NameTable entry: type=%04x id=%04x\n",
58 pTypeInfo->type_id, pNameInfo->id );
59 handle = LoadResource16( pModule->self,
60 (HRSRC16)((int)pNameInfo - (int)pModule) );
61 for(p = (WORD*)LockResource16(handle); p && *p; p = (WORD *)((char*)p+*p))
63 TRACE(" type=%04x '%s' id=%04x '%s'\n",
64 p[1], (char *)(p+3), p[2],
65 (char *)(p+3)+strlen((char *)(p+3))+1 );
66 /* Check for correct type */
70 if (!HIWORD(typeId)) continue;
71 if (strcasecmp( typeId, (char *)(p + 3) )) continue;
73 else if (HIWORD(typeId) || (((DWORD)typeId & ~0x8000)!= p[1]))
76 /* Now check for the id */
80 if (!HIWORD(resId)) continue;
81 if (strcasecmp( resId, (char*)(p+3)+strlen((char*)(p+3))+1 )) continue;
84 else if (HIWORD(resId) || (((DWORD)resId & ~0x8000) != p[2]))
87 /* If we get here, we've found the entry */
90 ret = MAKELONG( p[1], p[2] );
93 FreeResource16( handle );
100 /***********************************************************************
103 * Find header struct for a particular resource type.
105 NE_TYPEINFO *NE_FindTypeSection( LPBYTE pResTab,
106 NE_TYPEINFO *pTypeInfo, LPCSTR typeId )
108 /* start from pTypeInfo */
110 if (HIWORD(typeId) != 0) /* Named type */
113 BYTE len = strlen( str );
114 while (pTypeInfo->type_id)
116 if (!(pTypeInfo->type_id & 0x8000))
118 BYTE *p = pResTab + pTypeInfo->type_id;
119 if ((*p == len) && !strncasecmp( p+1, str, len ))
121 TRACE(" Found type '%s'\n", str );
125 TRACE(" Skipping type %04x\n", pTypeInfo->type_id );
126 pTypeInfo = NEXT_TYPEINFO(pTypeInfo);
129 else /* Numeric type id */
131 WORD id = LOWORD(typeId) | 0x8000;
132 while (pTypeInfo->type_id)
134 if (pTypeInfo->type_id == id)
136 TRACE(" Found type %04x\n", id );
139 TRACE(" Skipping type %04x\n", pTypeInfo->type_id );
140 pTypeInfo = NEXT_TYPEINFO(pTypeInfo);
146 /***********************************************************************
147 * NE_FindResourceFromType
149 * Find a resource once the type info structure has been found.
151 NE_NAMEINFO *NE_FindResourceFromType( LPBYTE pResTab,
152 NE_TYPEINFO *pTypeInfo, LPCSTR resId )
156 NE_NAMEINFO *pNameInfo = (NE_NAMEINFO *)(pTypeInfo + 1);
158 if (HIWORD(resId) != 0) /* Named resource */
161 BYTE len = strlen( str );
162 for (count = pTypeInfo->count; count > 0; count--, pNameInfo++)
164 if (pNameInfo->id & 0x8000) continue;
165 p = pResTab + pNameInfo->id;
166 if ((*p == len) && !strncasecmp( p+1, str, len ))
170 else /* Numeric resource id */
172 WORD id = LOWORD(resId) | 0x8000;
173 for (count = pTypeInfo->count; count > 0; count--, pNameInfo++)
174 if (pNameInfo->id == id)
181 /***********************************************************************
182 * NE_DefResourceHandler
184 * This is the default LoadProc() function.
186 HGLOBAL16 WINAPI NE_DefResourceHandler( HGLOBAL16 hMemObj, HMODULE16 hModule,
190 NE_MODULE* pModule = NE_GetPtr( hModule );
191 if (pModule && (pModule->flags & NE_FFLAGS_BUILTIN))
194 WORD sizeShift = *(WORD *)((char *)pModule + pModule->res_table);
195 NE_NAMEINFO* pNameInfo = (NE_NAMEINFO*)((char*)pModule + hRsrc);
198 handle = GlobalReAlloc16( hMemObj, pNameInfo->length << sizeShift, 0 );
200 handle = AllocResource16( hModule, hRsrc, 0 );
204 /* NOTE: hRsrcMap points to start of built-in resource data */
205 memcpy( GlobalLock16( handle ),
206 (char *)pModule->hRsrcMap + (pNameInfo->offset << sizeShift),
207 pNameInfo->length << sizeShift );
211 if (pModule && (fd = NE_OpenFile( pModule )) >= 0)
214 WORD sizeShift = *(WORD *)((char *)pModule + pModule->res_table);
215 NE_NAMEINFO* pNameInfo = (NE_NAMEINFO*)((char*)pModule + hRsrc);
217 TRACE("loading, pos=%d, len=%d\n",
218 (int)pNameInfo->offset << sizeShift,
219 (int)pNameInfo->length << sizeShift );
221 handle = GlobalReAlloc16( hMemObj, pNameInfo->length << sizeShift, 0 );
223 handle = AllocResource16( hModule, hRsrc, 0 );
228 SetFilePointer( fd, (int)pNameInfo->offset << sizeShift, NULL, SEEK_SET );
229 ReadFile( fd, GlobalLock16( handle ), (int)pNameInfo->length << sizeShift,
237 /***********************************************************************
238 * NE_InitResourceHandler
240 * Fill in 'resloader' fields in the resource table.
242 BOOL NE_InitResourceHandler( HMODULE16 hModule )
244 NE_MODULE *pModule = NE_GetPtr( hModule );
245 NE_TYPEINFO *pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->res_table + 2);
247 if ( DefResourceHandlerProc == (FARPROC16)0xffffffff )
249 HMODULE16 hModule = GetModuleHandle16( "KERNEL" );
250 int ordinal = hModule? NE_GetOrdinal( hModule, "DefResourceHandler" ) : 0;
253 DefResourceHandlerProc = NE_GetEntryPointEx( hModule, ordinal, FALSE );
255 DefResourceHandlerProc = NULL;
258 TRACE("InitResourceHandler[%04x]\n", hModule );
260 while(pTypeInfo->type_id)
262 pTypeInfo->resloader = DefResourceHandlerProc;
263 pTypeInfo = NEXT_TYPEINFO(pTypeInfo);
269 /**********************************************************************
270 * SetResourceHandler (KERNEL.43)
272 FARPROC16 WINAPI SetResourceHandler16( HMODULE16 hModule, LPCSTR typeId,
273 FARPROC16 resourceHandler )
275 FARPROC16 prevHandler = NULL;
276 NE_MODULE *pModule = NE_GetPtr( hModule );
277 LPBYTE pResTab = (LPBYTE)pModule + pModule->res_table;
278 NE_TYPEINFO *pTypeInfo = (NE_TYPEINFO *)(pResTab + 2);
280 if (!pModule || !pModule->res_table) return NULL;
282 TRACE("module=%04x type=%s\n", hModule, debugres_a(typeId) );
286 if (!(pTypeInfo = NE_FindTypeSection( pResTab, pTypeInfo, typeId )))
288 prevHandler = pTypeInfo->resloader;
289 pTypeInfo->resloader = resourceHandler;
290 pTypeInfo = NEXT_TYPEINFO(pTypeInfo);
296 /**********************************************************************
299 HRSRC16 NE_FindResource( NE_MODULE *pModule, LPCSTR name, LPCSTR type )
301 NE_TYPEINFO *pTypeInfo;
302 NE_NAMEINFO *pNameInfo;
305 if (!pModule || !pModule->res_table) return 0;
307 TRACE("module=%04x name=%s type=%s\n", pModule->self, debugres_a(name), debugres_a(type) );
309 if (HIWORD(name)) /* Check for '#xxx' name */
313 if (!(name = (LPCSTR)atoi( ptr + 1 )))
315 WARN("Incorrect resource name: %s\n", ptr);
320 if (HIWORD(type)) /* Check for '#xxx' type */
324 if (!(type = (LPCSTR)atoi( ptr + 1 )))
326 WARN("Incorrect resource type: %s\n", ptr);
331 if (HIWORD(type) || HIWORD(name))
333 DWORD id = NE_FindNameTableId( pModule, type, name );
336 type = (LPCSTR)(int)LOWORD(id);
337 name = (LPCSTR)(int)HIWORD(id);
341 pResTab = (LPBYTE)pModule + pModule->res_table;
342 pTypeInfo = (NE_TYPEINFO *)( pResTab + 2 );
346 if (!(pTypeInfo = NE_FindTypeSection( pResTab, pTypeInfo, type )))
348 if ((pNameInfo = NE_FindResourceFromType( pResTab, pTypeInfo, name )))
350 TRACE(" Found id %08lx\n", (DWORD)name );
351 return (HRSRC16)( (int)pNameInfo - (int)pModule );
353 TRACE(" Not found, going on\n" );
354 pTypeInfo = NEXT_TYPEINFO(pTypeInfo);
362 /**********************************************************************
363 * AllocResource (KERNEL.66)
365 HGLOBAL16 WINAPI AllocResource16( HMODULE16 hModule, HRSRC16 hRsrc, DWORD size)
367 NE_NAMEINFO *pNameInfo=NULL;
370 NE_MODULE *pModule = NE_GetPtr( hModule );
371 if (!pModule || !pModule->res_table || !hRsrc) return 0;
373 TRACE("module=%04x res=%04x size=%ld\n", hModule, hRsrc, size );
375 sizeShift = *(WORD *)((char *)pModule + pModule->res_table);
376 pNameInfo = (NE_NAMEINFO*)((char*)pModule + hRsrc);
377 if (size < (DWORD)pNameInfo->length << sizeShift)
378 size = (DWORD)pNameInfo->length << sizeShift;
379 return GLOBAL_Alloc( GMEM_FIXED, size, hModule, WINE_LDT_FLAGS_DATA );
383 /**********************************************************************
384 * DirectResAlloc (KERNEL.168)
386 * Check Schulman, p. 232 for details
388 HGLOBAL16 WINAPI DirectResAlloc16( HINSTANCE16 hInstance, WORD wType,
391 TRACE("(%04x,%04x,%04x)\n",
392 hInstance, wType, wSize );
393 if (!(hInstance = GetExePtr( hInstance ))) return 0;
394 if(wType != 0x10) /* 0x10 is the only observed value, passed from
395 CreateCursorIndirect. */
396 TRACE("(wType=%x)\n", wType);
397 return GLOBAL_Alloc(GMEM_MOVEABLE, wSize, hInstance, WINE_LDT_FLAGS_DATA );
401 /**********************************************************************
402 * AccessResource16 (KERNEL.64)
404 INT16 WINAPI AccessResource16( HINSTANCE16 hModule, HRSRC16 hRsrc )
407 NE_MODULE *pModule = NE_GetPtr( hModule );
409 if (!pModule || !pModule->res_table || !hRsrc) return -1;
411 TRACE("module=%04x res=%04x\n", pModule->self, hRsrc );
413 if ((fd = _lopen16( NE_MODULE_NAME(pModule), OF_READ )) != HFILE_ERROR16)
415 WORD sizeShift = *(WORD *)((char *)pModule + pModule->res_table);
416 NE_NAMEINFO *pNameInfo = (NE_NAMEINFO*)((char*)pModule + hRsrc);
417 _llseek16( fd, (int)pNameInfo->offset << sizeShift, SEEK_SET );
423 /**********************************************************************
426 DWORD NE_SizeofResource( NE_MODULE *pModule, HRSRC16 hRsrc )
428 NE_NAMEINFO *pNameInfo=NULL;
431 if (!pModule || !pModule->res_table) return 0;
433 TRACE("module=%04x res=%04x\n", pModule->self, hRsrc );
435 sizeShift = *(WORD *)((char *)pModule + pModule->res_table);
436 pNameInfo = (NE_NAMEINFO*)((char*)pModule + hRsrc);
437 return (DWORD)pNameInfo->length << sizeShift;
441 /**********************************************************************
444 HGLOBAL16 NE_LoadResource( NE_MODULE *pModule, HRSRC16 hRsrc )
446 NE_TYPEINFO *pTypeInfo;
447 NE_NAMEINFO *pNameInfo = NULL;
450 TRACE("module=%04x res=%04x\n", pModule->self, hRsrc );
451 if (!hRsrc || !pModule || !pModule->res_table) return 0;
453 /* First, verify hRsrc (just an offset from pModule to the needed pNameInfo) */
455 d = pModule->res_table + 2;
456 pTypeInfo = (NE_TYPEINFO *)((char *)pModule + d);
459 if (pTypeInfo->type_id == 0)
460 break; /* terminal entry */
461 d += sizeof(NE_TYPEINFO) + pTypeInfo->count * sizeof(NE_NAMEINFO);
464 if( ((d - hRsrc)%sizeof(NE_NAMEINFO)) == 0 )
466 pNameInfo = (NE_NAMEINFO *)(((char *)pModule) + hRsrc);
470 break; /* NE_NAMEINFO boundary mismatch */
472 pTypeInfo = (NE_TYPEINFO *)(((char *)pModule) + d);
477 if (pNameInfo->handle
478 && !(GlobalFlags16(pNameInfo->handle) & GMEM_DISCARDED))
481 TRACE(" Already loaded, new count=%d\n",
486 if ( pTypeInfo->resloader
487 && pTypeInfo->resloader != DefResourceHandlerProc )
488 pNameInfo->handle = NE_CallTo16_word_www(
489 pTypeInfo->resloader, pNameInfo->handle, pModule->self, hRsrc );
491 pNameInfo->handle = NE_DefResourceHandler(
492 pNameInfo->handle, pModule->self, hRsrc );
494 if (pNameInfo->handle)
497 pNameInfo->flags |= NE_SEGFLAGS_LOADED;
500 return pNameInfo->handle;
506 /**********************************************************************
509 BOOL16 NE_FreeResource( NE_MODULE *pModule, HGLOBAL16 handle )
511 NE_TYPEINFO *pTypeInfo;
512 NE_NAMEINFO *pNameInfo;
515 if (!handle || !pModule || !pModule->res_table) return handle;
517 TRACE("handle=%04x\n", handle );
519 pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->res_table + 2);
520 while (pTypeInfo->type_id)
522 pNameInfo = (NE_NAMEINFO *)(pTypeInfo + 1);
523 for (count = pTypeInfo->count; count > 0; count--)
525 if (pNameInfo->handle == handle)
527 if (pNameInfo->usage > 0) pNameInfo->usage--;
528 if (pNameInfo->usage == 0)
530 GlobalFree16( pNameInfo->handle );
531 pNameInfo->handle = 0;
532 pNameInfo->flags &= ~NE_SEGFLAGS_LOADED;
538 pTypeInfo = (NE_TYPEINFO *)pNameInfo;