/* * Help Viewer * * Copyright 1996 Ulrich Schmid * 2002, 2008 Eric Pouech * 2007 Kirill K. Smirnov * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include #include #include #include "windef.h" #include "winbase.h" #include "wingdi.h" #include "winuser.h" #include "winhelp.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(winhelp); static inline unsigned short GET_USHORT(const BYTE* buffer, unsigned i) { return (BYTE)buffer[i] + 0x100 * (BYTE)buffer[i + 1]; } static inline short GET_SHORT(const BYTE* buffer, unsigned i) { return (BYTE)buffer[i] + 0x100 * (signed char)buffer[i+1]; } static inline unsigned GET_UINT(const BYTE* buffer, unsigned i) { return GET_USHORT(buffer, i) + 0x10000 * GET_USHORT(buffer, i + 2); } static HLPFILE *first_hlpfile = 0; static struct { UINT wFont; UINT wIndent; UINT wHSpace; UINT wVSpace; HLPFILE_LINK* link; } attributes; static BOOL HLPFILE_DoReadHlpFile(HLPFILE*, LPCSTR); static BOOL HLPFILE_ReadFileToBuffer(HLPFILE*, HFILE); static BOOL HLPFILE_FindSubFile(HLPFILE*, LPCSTR, BYTE**, BYTE**); static BOOL HLPFILE_SystemCommands(HLPFILE*); static INT HLPFILE_UncompressedLZ77_Size(BYTE *ptr, BYTE *end); static BYTE* HLPFILE_UncompressLZ77(BYTE *ptr, BYTE *end, BYTE *newptr); static BOOL HLPFILE_UncompressLZ77_Phrases(HLPFILE*); static BOOL HLPFILE_Uncompress_Phrases40(HLPFILE*); static BOOL HLPFILE_Uncompress_Topic(HLPFILE*); static BOOL HLPFILE_GetContext(HLPFILE*); static BOOL HLPFILE_GetKeywords(HLPFILE*); static BOOL HLPFILE_GetMap(HLPFILE*); static BOOL HLPFILE_AddPage(HLPFILE*, BYTE*, BYTE*, unsigned, unsigned); static BOOL HLPFILE_SkipParagraph(HLPFILE*, BYTE *, BYTE*, unsigned*); static void HLPFILE_Uncompress2(HLPFILE*, const BYTE*, const BYTE*, BYTE*, const BYTE*); static BOOL HLPFILE_Uncompress3(HLPFILE*, char*, const char*, const BYTE*, const BYTE*); static void HLPFILE_UncompressRLE(const BYTE* src, const BYTE* end, BYTE** dst, unsigned dstsz); static BOOL HLPFILE_ReadFont(HLPFILE* hlpfile); /*********************************************************************** * * HLPFILE_PageByNumber */ static HLPFILE_PAGE *HLPFILE_PageByNumber(HLPFILE* hlpfile, UINT wNum) { HLPFILE_PAGE *page; UINT temp = wNum; WINE_TRACE("<%s>[%u]\n", hlpfile->lpszPath, wNum); for (page = hlpfile->first_page; page && temp; page = page->next) temp--; if (!page) WINE_ERR("Page of number %u not found in file %s\n", wNum, hlpfile->lpszPath); return page; } /* FIXME: * this finds the page containing the offset. The offset can either * refer to the top of the page (offset == page->offset), or * to some paragraph inside the page... * As of today, we only return the page... we should also return * a paragraph, and then, while opening a new page, compute the * y-offset of the paragraph to be shown and scroll the window * accordingly */ /****************************************************************** * HLPFILE_PageByOffset * * */ HLPFILE_PAGE *HLPFILE_PageByOffset(HLPFILE* hlpfile, LONG offset) { HLPFILE_PAGE* page; HLPFILE_PAGE* found; if (!hlpfile) return 0; WINE_TRACE("<%s>[%x]\n", hlpfile->lpszPath, offset); if (offset == 0xFFFFFFFF) return NULL; page = NULL; for (found = NULL, page = hlpfile->first_page; page; page = page->next) { if (page->offset <= offset && (!found || found->offset < page->offset)) found = page; } if (!found) WINE_ERR("Page of offset %u not found in file %s\n", offset, hlpfile->lpszPath); return found; } /************************************************************************** * comp_PageByHash * * HLPFILE_BPTreeCompare function for '|CONTEXT' B+ tree file * */ static int comp_PageByHash(void *p, const void *key, int leaf, void** next) { LONG lKey = (LONG_PTR)key; LONG lTest = (INT)GET_UINT(p, 0); *next = (char *)p+(leaf?8:6); WINE_TRACE("Comparing '%d' with '%d'\n", lKey, lTest); if (lTest < lKey) return -1; if (lTest > lKey) return 1; return 0; } /*********************************************************************** * * HLPFILE_HlpFilePageByHash */ HLPFILE_PAGE *HLPFILE_PageByHash(HLPFILE* hlpfile, LONG lHash) { BYTE *ptr; if (!hlpfile) return 0; WINE_TRACE("<%s>[%x]\n", hlpfile->lpszPath, lHash); /* For win 3.0 files hash values are really page numbers */ if (hlpfile->version <= 16) return HLPFILE_PageByNumber(hlpfile, lHash); ptr = HLPFILE_BPTreeSearch(hlpfile->Context, LongToPtr(lHash), comp_PageByHash); if (!ptr) { WINE_ERR("Page of hash %x not found in file %s\n", lHash, hlpfile->lpszPath); return NULL; } return HLPFILE_PageByOffset(hlpfile, GET_UINT(ptr, 4)); } /*********************************************************************** * * HLPFILE_PageByMap */ HLPFILE_PAGE *HLPFILE_PageByMap(HLPFILE* hlpfile, LONG lMap) { unsigned int i; if (!hlpfile) return 0; WINE_TRACE("<%s>[%x]\n", hlpfile->lpszPath, lMap); for (i = 0; i < hlpfile->wMapLen; i++) { if (hlpfile->Map[i].lMap == lMap) return HLPFILE_PageByOffset(hlpfile, hlpfile->Map[i].offset); } WINE_ERR("Page of Map %x not found in file %s\n", lMap, hlpfile->lpszPath); return NULL; } /*********************************************************************** * * HLPFILE_Contents */ HLPFILE_PAGE* HLPFILE_Contents(HLPFILE *hlpfile) { HLPFILE_PAGE* page = NULL; if (!hlpfile) return NULL; page = HLPFILE_PageByOffset(hlpfile, hlpfile->contents_start); if (!page) page = hlpfile->first_page; return page; } /*********************************************************************** * * HLPFILE_Hash */ LONG HLPFILE_Hash(LPCSTR lpszContext) { LONG lHash = 0; CHAR c; while ((c = *lpszContext++)) { CHAR x = 0; if (c >= 'A' && c <= 'Z') x = c - 'A' + 17; if (c >= 'a' && c <= 'z') x = c - 'a' + 17; if (c >= '1' && c <= '9') x = c - '0'; if (c == '0') x = 10; if (c == '.') x = 12; if (c == '_') x = 13; if (x) lHash = lHash * 43 + x; } return lHash; } /*********************************************************************** * * HLPFILE_ReadHlpFile */ HLPFILE *HLPFILE_ReadHlpFile(LPCSTR lpszPath) { HLPFILE* hlpfile; for (hlpfile = first_hlpfile; hlpfile; hlpfile = hlpfile->next) { if (!strcmp(lpszPath, hlpfile->lpszPath)) { hlpfile->wRefCount++; return hlpfile; } } hlpfile = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(HLPFILE) + lstrlen(lpszPath) + 1); if (!hlpfile) return 0; hlpfile->lpszPath = (char*)hlpfile + sizeof(HLPFILE); hlpfile->contents_start = 0xFFFFFFFF; hlpfile->next = first_hlpfile; hlpfile->wRefCount = 1; strcpy(hlpfile->lpszPath, lpszPath); first_hlpfile = hlpfile; if (hlpfile->next) hlpfile->next->prev = hlpfile; if (!HLPFILE_DoReadHlpFile(hlpfile, lpszPath)) { HLPFILE_FreeHlpFile(hlpfile); hlpfile = 0; } return hlpfile; } /*********************************************************************** * * HLPFILE_DoReadHlpFile */ static BOOL HLPFILE_DoReadHlpFile(HLPFILE *hlpfile, LPCSTR lpszPath) { BOOL ret; HFILE hFile; OFSTRUCT ofs; BYTE* buf; DWORD ref = 0x0C; unsigned index, old_index, offset, len, offs; hFile = OpenFile(lpszPath, &ofs, OF_READ); if (hFile == HFILE_ERROR) return FALSE; ret = HLPFILE_ReadFileToBuffer(hlpfile, hFile); _lclose(hFile); if (!ret) return FALSE; if (!HLPFILE_SystemCommands(hlpfile)) return FALSE; /* load phrases support */ if (!HLPFILE_UncompressLZ77_Phrases(hlpfile)) HLPFILE_Uncompress_Phrases40(hlpfile); if (!HLPFILE_Uncompress_Topic(hlpfile)) return FALSE; if (!HLPFILE_ReadFont(hlpfile)) return FALSE; buf = hlpfile->topic_map[0]; old_index = -1; offs = 0; do { BYTE* end; if (hlpfile->version <= 16) { index = (ref - 0x0C) / hlpfile->dsize; offset = (ref - 0x0C) % hlpfile->dsize; } else { index = (ref - 0x0C) >> 14; offset = (ref - 0x0C) & 0x3FFF; } if (hlpfile->version <= 16 && index != old_index && index != 0) { /* we jumped to the next block, adjust pointers */ ref -= 12; offset -= 12; } WINE_TRACE("ref=%08x => [%u/%u]\n", ref, index, offset); if (index >= hlpfile->topic_maplen) {WINE_WARN("maplen\n"); break;} buf = hlpfile->topic_map[index] + offset; if (buf + 0x15 >= hlpfile->topic_end) {WINE_WARN("extra\n"); break;} end = min(buf + GET_UINT(buf, 0), hlpfile->topic_end); if (index != old_index) {offs = 0; old_index = index;} switch (buf[0x14]) { case 0x02: if (!HLPFILE_AddPage(hlpfile, buf, end, ref, index * 0x8000L + offs)) return FALSE; break; case 0x01: case 0x20: case 0x23: if (!HLPFILE_SkipParagraph(hlpfile, buf, end, &len)) return FALSE; offs += len; break; default: WINE_ERR("buf[0x14] = %x\n", buf[0x14]); } if (hlpfile->version <= 16) { ref += GET_UINT(buf, 0xc); if (GET_UINT(buf, 0xc) == 0) break; } else ref = GET_UINT(buf, 0xc); } while (ref != 0xffffffff); HLPFILE_GetKeywords(hlpfile); HLPFILE_GetMap(hlpfile); if (hlpfile->version <= 16) return TRUE; return HLPFILE_GetContext(hlpfile); } /*********************************************************************** * * HLPFILE_AddPage */ static BOOL HLPFILE_AddPage(HLPFILE *hlpfile, BYTE *buf, BYTE *end, unsigned ref, unsigned offset) { HLPFILE_PAGE* page; BYTE* title; UINT titlesize, blocksize, datalen; char* ptr; HLPFILE_MACRO*macro; blocksize = GET_UINT(buf, 0); datalen = GET_UINT(buf, 0x10); title = buf + datalen; if (title > end) {WINE_WARN("page2\n"); return FALSE;}; titlesize = GET_UINT(buf, 4); page = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_PAGE) + titlesize + 1); if (!page) return FALSE; page->lpszTitle = (char*)page + sizeof(HLPFILE_PAGE); if (titlesize > blocksize - datalen) { /* need to decompress */ if (hlpfile->hasPhrases) HLPFILE_Uncompress2(hlpfile, title, end, (BYTE*)page->lpszTitle, (BYTE*)page->lpszTitle + titlesize); else if (hlpfile->hasPhrases40) HLPFILE_Uncompress3(hlpfile, page->lpszTitle, page->lpszTitle + titlesize, title, end); else { WINE_FIXME("Text size is too long, splitting\n"); titlesize = blocksize - datalen; memcpy(page->lpszTitle, title, titlesize); } } else memcpy(page->lpszTitle, title, titlesize); page->lpszTitle[titlesize] = '\0'; if (hlpfile->first_page) { hlpfile->last_page->next = page; page->prev = hlpfile->last_page; hlpfile->last_page = page; } else { hlpfile->first_page = page; hlpfile->last_page = page; page->prev = NULL; } page->file = hlpfile; page->next = NULL; page->first_paragraph = NULL; page->first_macro = NULL; page->wNumber = GET_UINT(buf, 0x21); page->offset = offset; page->reference = ref; page->browse_bwd = GET_UINT(buf, 0x19); page->browse_fwd = GET_UINT(buf, 0x1D); WINE_TRACE("Added page[%d]: title='%s' %08x << %08x >> %08x\n", page->wNumber, page->lpszTitle, page->browse_bwd, page->offset, page->browse_fwd); memset(&attributes, 0, sizeof(attributes)); /* now load macros */ ptr = page->lpszTitle + strlen(page->lpszTitle) + 1; while (ptr < page->lpszTitle + titlesize) { unsigned len = strlen(ptr); char* macro_str; WINE_TRACE("macro: %s\n", ptr); macro = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_MACRO) + len + 1); macro->lpszMacro = macro_str = (char*)(macro + 1); memcpy(macro_str, ptr, len + 1); /* FIXME: shall we really link macro in reverse order ?? * may produce strange results when played at page opening */ macro->next = page->first_macro; page->first_macro = macro; ptr += len + 1; } return TRUE; } static long fetch_long(BYTE** ptr) { long ret; if (*(*ptr) & 1) { ret = (*(unsigned long*)(*ptr) - 0x80000000L) / 2; (*ptr) += 4; } else { ret = (*(unsigned short*)(*ptr) - 0x8000) / 2; (*ptr) += 2; } return ret; } static unsigned long fetch_ulong(BYTE** ptr) { unsigned long ret; if (*(*ptr) & 1) { ret = *(unsigned long*)(*ptr) / 2; (*ptr) += 4; } else { ret = *(unsigned short*)(*ptr) / 2; (*ptr) += 2; } return ret; } static short fetch_short(BYTE** ptr) { short ret; if (*(*ptr) & 1) { ret = (*(unsigned short*)(*ptr) - 0x8000) / 2; (*ptr) += 2; } else { ret = (*(unsigned char*)(*ptr) - 0x80) / 2; (*ptr)++; } return ret; } static unsigned short fetch_ushort(BYTE** ptr) { unsigned short ret; if (*(*ptr) & 1) { ret = *(unsigned short*)(*ptr) / 2; (*ptr) += 2; } else { ret = *(unsigned char*)(*ptr) / 2; (*ptr)++; } return ret; } /*********************************************************************** * * HLPFILE_SkipParagraph */ static BOOL HLPFILE_SkipParagraph(HLPFILE *hlpfile, BYTE *buf, BYTE *end, unsigned* len) { BYTE *tmp; if (!hlpfile->first_page) {WINE_WARN("no page\n"); return FALSE;}; if (buf + 0x19 > end) {WINE_WARN("header too small\n"); return FALSE;}; tmp = buf + 0x15; if (buf[0x14] == 0x20 || buf[0x14] == 0x23) { fetch_long(&tmp); *len = fetch_ushort(&tmp); } else *len = end-buf-15; return TRUE; } /****************************************************************** * HLPFILE_DecompressGfx * * Decompress the data part of a bitmap or a metafile */ static BYTE* HLPFILE_DecompressGfx(BYTE* src, unsigned csz, unsigned sz, BYTE packing) { BYTE* dst; BYTE* tmp; BYTE* tmp2; unsigned sz77; WINE_TRACE("Unpacking (%d) from %u bytes to %u bytes\n", packing, csz, sz); switch (packing) { case 0: /* uncompressed */ if (sz != csz) WINE_WARN("Bogus gfx sizes (uncompressed): %u / %u\n", sz, csz); dst = src; break; case 1: /* RunLen */ tmp = dst = HeapAlloc(GetProcessHeap(), 0, sz); if (!dst) return NULL; HLPFILE_UncompressRLE(src, src + csz, &tmp, sz); if (tmp - dst != sz) WINE_WARN("Bogus gfx sizes (RunLen): %lu/%u\n", (SIZE_T)(tmp - dst), sz); break; case 2: /* LZ77 */ sz77 = HLPFILE_UncompressedLZ77_Size(src, src + csz); dst = HeapAlloc(GetProcessHeap(), 0, sz77); if (!dst) return NULL; HLPFILE_UncompressLZ77(src, src + csz, dst); if (sz77 != sz) WINE_WARN("Bogus gfx sizes (LZ77): %u / %u\n", sz77, sz); break; case 3: /* LZ77 then RLE */ sz77 = HLPFILE_UncompressedLZ77_Size(src, src + csz); tmp = HeapAlloc(GetProcessHeap(), 0, sz77); if (!tmp) return FALSE; HLPFILE_UncompressLZ77(src, src + csz, tmp); dst = tmp2 = HeapAlloc(GetProcessHeap(), 0, sz); if (!dst) { HeapFree(GetProcessHeap(), 0, tmp); return FALSE; } HLPFILE_UncompressRLE(tmp, tmp + sz77, &tmp2, sz); if (tmp2 - dst != sz) WINE_WARN("Bogus gfx sizes (LZ77+RunLen): %lu / %u\n", (SIZE_T)(tmp2 - dst), sz); HeapFree(GetProcessHeap(), 0, tmp); break; default: WINE_FIXME("Unsupported packing %u\n", packing); return NULL; } return dst; } /****************************************************************** * HLPFILE_LoadBitmap * * */ static BOOL HLPFILE_LoadBitmap(BYTE* beg, BYTE type, BYTE pack, HLPFILE_PARAGRAPH* paragraph) { BYTE* ptr; BYTE* pict_beg; BITMAPINFO* bi; unsigned long off, csz; HDC hdc; bi = HeapAlloc(GetProcessHeap(), 0, sizeof(*bi)); if (!bi) return FALSE; ptr = beg + 2; /* for type and pack */ bi->bmiHeader.biSize = sizeof(bi->bmiHeader); bi->bmiHeader.biXPelsPerMeter = fetch_ulong(&ptr); bi->bmiHeader.biYPelsPerMeter = fetch_ulong(&ptr); bi->bmiHeader.biPlanes = fetch_ushort(&ptr); bi->bmiHeader.biBitCount = fetch_ushort(&ptr); bi->bmiHeader.biWidth = fetch_ulong(&ptr); bi->bmiHeader.biHeight = fetch_ulong(&ptr); bi->bmiHeader.biClrUsed = fetch_ulong(&ptr); bi->bmiHeader.biClrImportant = fetch_ulong(&ptr); bi->bmiHeader.biCompression = BI_RGB; if (bi->bmiHeader.biBitCount > 32) WINE_FIXME("Unknown bit count %u\n", bi->bmiHeader.biBitCount); if (bi->bmiHeader.biPlanes != 1) WINE_FIXME("Unsupported planes %u\n", bi->bmiHeader.biPlanes); bi->bmiHeader.biSizeImage = (((bi->bmiHeader.biWidth * bi->bmiHeader.biBitCount + 31) & ~31) / 8) * bi->bmiHeader.biHeight; WINE_TRACE("planes=%d bc=%d size=(%d,%d)\n", bi->bmiHeader.biPlanes, bi->bmiHeader.biBitCount, bi->bmiHeader.biWidth, bi->bmiHeader.biHeight); csz = fetch_ulong(&ptr); fetch_ulong(&ptr); /* hotspot size */ off = GET_UINT(ptr, 0); ptr += 4; /* GET_UINT(ptr, 0); hotspot offset */ ptr += 4; /* now read palette info */ if (type == 0x06) { unsigned nc = bi->bmiHeader.biClrUsed; unsigned i; /* not quite right, especially for bitfields type of compression */ if (!nc && bi->bmiHeader.biBitCount <= 8) nc = 1 << bi->bmiHeader.biBitCount; bi = HeapReAlloc(GetProcessHeap(), 0, bi, sizeof(*bi) + nc * sizeof(RGBQUAD)); if (!bi) return FALSE; for (i = 0; i < nc; i++) { bi->bmiColors[i].rgbBlue = ptr[0]; bi->bmiColors[i].rgbGreen = ptr[1]; bi->bmiColors[i].rgbRed = ptr[2]; bi->bmiColors[i].rgbReserved = 0; ptr += 4; } } pict_beg = HLPFILE_DecompressGfx(beg + off, csz, bi->bmiHeader.biSizeImage, pack); paragraph->u.gfx.u.bmp.hBitmap = CreateDIBitmap(hdc = GetDC(0), &bi->bmiHeader, CBM_INIT, pict_beg, bi, DIB_RGB_COLORS); ReleaseDC(0, hdc); if (!paragraph->u.gfx.u.bmp.hBitmap) WINE_ERR("Couldn't create bitmap\n"); HeapFree(GetProcessHeap(), 0, bi); if (pict_beg != beg + off) HeapFree(GetProcessHeap(), 0, pict_beg); return TRUE; } /****************************************************************** * HLPFILE_LoadMetaFile * * */ static BOOL HLPFILE_LoadMetaFile(BYTE* beg, BYTE pack, HLPFILE_PARAGRAPH* paragraph) { BYTE* ptr; unsigned long size, csize; unsigned long off, hsoff; BYTE* bits; LPMETAFILEPICT lpmfp; WINE_TRACE("Loading metafile\n"); ptr = beg + 2; /* for type and pack */ lpmfp = ¶graph->u.gfx.u.mfp; lpmfp->mm = fetch_ushort(&ptr); /* mapping mode */ lpmfp->xExt = GET_USHORT(ptr, 0); lpmfp->yExt = GET_USHORT(ptr, 2); ptr += 4; size = fetch_ulong(&ptr); /* decompressed size */ csize = fetch_ulong(&ptr); /* compressed size */ fetch_ulong(&ptr); /* hotspot size */ off = GET_UINT(ptr, 0); hsoff = GET_UINT(ptr, 4); ptr += 8; WINE_TRACE("sz=%lu csz=%lu (%d,%d) offs=%lu/%lu,%lu\n", size, csize, lpmfp->xExt, lpmfp->yExt, off, (SIZE_T)(ptr - beg), hsoff); bits = HLPFILE_DecompressGfx(beg + off, csize, size, pack); if (!bits) return FALSE; paragraph->cookie = para_metafile; lpmfp->hMF = SetMetaFileBitsEx(size, bits); if (!lpmfp->hMF) WINE_FIXME("Couldn't load metafile\n"); if (bits != beg + off) HeapFree(GetProcessHeap(), 0, bits); return TRUE; } /****************************************************************** * HLPFILE_LoadGfxByAddr * * */ static BOOL HLPFILE_LoadGfxByAddr(HLPFILE *hlpfile, BYTE* ref, unsigned long size, HLPFILE_PARAGRAPH* paragraph) { unsigned i, numpict; numpict = GET_USHORT(ref, 2); WINE_TRACE("Got picture magic=%04x #=%d\n", GET_USHORT(ref, 0), numpict); for (i = 0; i < numpict; i++) { BYTE* beg; BYTE* ptr; BYTE type, pack; WINE_TRACE("Offset[%d] = %x\n", i, GET_UINT(ref, (1 + i) * 4)); beg = ptr = ref + GET_UINT(ref, (1 + i) * 4); type = *ptr++; pack = *ptr++; switch (type) { case 5: /* device dependent bmp */ case 6: /* device independent bmp */ HLPFILE_LoadBitmap(beg, type, pack, paragraph); break; case 8: HLPFILE_LoadMetaFile(beg, pack, paragraph); break; default: WINE_FIXME("Unknown type %u\n", type); return FALSE; } /* FIXME: hotspots */ /* FIXME: implement support for multiple picture format */ if (numpict != 1) WINE_FIXME("Supporting only one bitmap format per logical bitmap (for now). Using first format\n"); break; } return TRUE; } /****************************************************************** * HLPFILE_LoadGfxByIndex * * */ static BOOL HLPFILE_LoadGfxByIndex(HLPFILE *hlpfile, unsigned index, HLPFILE_PARAGRAPH* paragraph) { char tmp[16]; BYTE *ref, *end; BOOL ret; WINE_TRACE("Loading picture #%d\n", index); if (index < hlpfile->numBmps && hlpfile->bmps[index] != NULL) { paragraph->u.gfx.u.bmp.hBitmap = hlpfile->bmps[index]; return TRUE; } sprintf(tmp, "|bm%u", index); if (!HLPFILE_FindSubFile(hlpfile, tmp, &ref, &end)) {WINE_WARN("no sub file\n"); return FALSE;} ref += 9; ret = HLPFILE_LoadGfxByAddr(hlpfile, ref, end - ref, paragraph); /* cache bitmap */ if (ret && paragraph->cookie == para_bitmap) { if (index >= hlpfile->numBmps) { hlpfile->numBmps = index + 1; if (hlpfile->bmps) hlpfile->bmps = HeapReAlloc(GetProcessHeap(), 0, hlpfile->bmps, hlpfile->numBmps * sizeof(hlpfile->bmps[0])); else hlpfile->bmps = HeapAlloc(GetProcessHeap(), 0, hlpfile->numBmps * sizeof(hlpfile->bmps[0])); } hlpfile->bmps[index] = paragraph->u.gfx.u.bmp.hBitmap; } return ret; } /****************************************************************** * HLPFILE_AllocLink * * */ static HLPFILE_LINK* HLPFILE_AllocLink(int cookie, const char* str, LONG hash, BOOL clrChange, unsigned wnd) { HLPFILE_LINK* link; char* link_str; /* FIXME: should build a string table for the attributes.link.lpszPath * they are reallocated for each link */ link = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_LINK) + strlen(str) + 1); if (!link) return NULL; link->cookie = cookie; link->lpszString = link_str = (char*)link + sizeof(HLPFILE_LINK); strcpy(link_str, str); link->lHash = hash; link->bClrChange = clrChange ? 1 : 0; link->window = wnd; link->wRefCount = 1; WINE_TRACE("Link[%d] to %s@%08x:%d\n", link->cookie, link->lpszString, link->lHash, link->window); return link; } /*********************************************************************** * * HLPFILE_BrowseParagraph */ static BOOL HLPFILE_BrowseParagraph(HLPFILE_PAGE* page, BYTE *buf, BYTE* end) { HLPFILE_PARAGRAPH *paragraph, **paragraphptr; UINT textsize; BYTE *format, *format_end; char *text, *text_base, *text_end; long size, blocksize, datalen; unsigned short bits; unsigned nc, ncol = 1; BOOL in_table = FALSE; for (paragraphptr = &page->first_paragraph; *paragraphptr; paragraphptr = &(*paragraphptr)->next) /* Nothing */; if (buf + 0x19 > end) {WINE_WARN("header too small\n"); return FALSE;}; blocksize = GET_UINT(buf, 0); size = GET_UINT(buf, 0x4); datalen = GET_UINT(buf, 0x10); text = text_base = HeapAlloc(GetProcessHeap(), 0, size); if (!text) return FALSE; if (size > blocksize - datalen) { /* need to decompress */ if (page->file->hasPhrases) HLPFILE_Uncompress2(page->file, buf + datalen, end, (BYTE*)text, (BYTE*)text + size); else if (page->file->hasPhrases40) HLPFILE_Uncompress3(page->file, text, text + size, buf + datalen, end); else { WINE_FIXME("Text size is too long, splitting\n"); size = blocksize - datalen; memcpy(text, buf + datalen, size); } } else memcpy(text, buf + datalen, size); text_end = text + size; format = buf + 0x15; format_end = buf + GET_UINT(buf, 0x10); if (buf[0x14] == 0x20 || buf[0x14] == 0x23) { fetch_long(&format); fetch_ushort(&format); } if (buf[0x14] == 0x23) { char type; in_table = TRUE; ncol = *format++; WINE_TRACE("#cols %u\n", ncol); type = *format++; if (type == 0 || type == 2) format += 2; format += ncol * 4; } for (nc = 0; nc < ncol; /**/) { WINE_TRACE("looking for format at offset %lu in column %d\n", (SIZE_T)(format - (buf + 0x15)), nc); if (in_table) { nc = GET_SHORT(format, 0); if (nc == -1) break; format += 5; } else nc++; format += 4; bits = GET_USHORT(format, 0); format += 2; if (bits & 0x0001) fetch_long(&format); if (bits & 0x0002) fetch_short(&format); if (bits & 0x0004) fetch_short(&format); if (bits & 0x0008) fetch_short(&format); if (bits & 0x0010) fetch_short(&format); if (bits & 0x0020) fetch_short(&format); if (bits & 0x0040) fetch_short(&format); if (bits & 0x0100) format += 3; if (bits & 0x0200) { int ntab = fetch_short(&format); unsigned short ts; while (ntab-- > 0) { ts = fetch_ushort(&format); if (ts & 0x4000) fetch_ushort(&format); } } /* 0x0400, 0x0800 and 0x1000 don't need space */ if ((bits & 0xE080) != 0) WINE_FIXME("Unsupported bits %04x, potential trouble ahead\n", bits); while (text < text_end && format < format_end) { WINE_TRACE("Got text: %s (%p/%p - %p/%p)\n", wine_dbgstr_a(text), text, text_end, format, format_end); textsize = strlen(text) + 1; if (textsize > 1) { paragraph = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_PARAGRAPH) + textsize); if (!paragraph) return FALSE; *paragraphptr = paragraph; paragraphptr = ¶graph->next; paragraph->next = NULL; paragraph->link = attributes.link; if (paragraph->link) paragraph->link->wRefCount++; paragraph->cookie = para_normal_text; paragraph->u.text.wFont = attributes.wFont; paragraph->u.text.wVSpace = attributes.wVSpace; paragraph->u.text.wHSpace = attributes.wHSpace; paragraph->u.text.wIndent = attributes.wIndent; paragraph->u.text.lpszText = (char*)paragraph + sizeof(HLPFILE_PARAGRAPH); strcpy(paragraph->u.text.lpszText, text); attributes.wVSpace = 0; attributes.wHSpace = 0; } /* else: null text, keep on storing attributes */ text += textsize; if (*format == 0xff) { format++; break; } WINE_TRACE("format=%02x\n", *format); switch (*format) { case 0x20: WINE_FIXME("NIY20\n"); format += 5; break; case 0x21: WINE_FIXME("NIY21\n"); format += 3; break; case 0x80: attributes.wFont = GET_USHORT(format, 1); WINE_TRACE("Changing font to %d\n", attributes.wFont); format += 3; break; case 0x81: attributes.wVSpace++; format += 1; break; case 0x82: attributes.wVSpace++; attributes.wIndent = 0; format += 1; break; case 0x83: attributes.wIndent++; format += 1; break; #if 0 case 0x84: format += 3; break; #endif case 0x86: case 0x87: case 0x88: { BYTE pos = (*format - 0x86); BYTE type = format[1]; long size; format += 2; size = fetch_long(&format); paragraph = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_PARAGRAPH) + textsize); if (!paragraph) return FALSE; *paragraphptr = paragraph; paragraphptr = ¶graph->next; paragraph->next = NULL; paragraph->link = attributes.link; if (paragraph->link) paragraph->link->wRefCount++; paragraph->cookie = para_bitmap; paragraph->u.gfx.pos = pos; switch (type) { case 0x22: fetch_ushort(&format); /* hot spot */ /* fall thru */ case 0x03: switch (GET_SHORT(format, 0)) { case 0: HLPFILE_LoadGfxByIndex(page->file, GET_SHORT(format, 2), paragraph); break; case 1: WINE_FIXME("does it work ??? %x<%lu>#%u\n", GET_SHORT(format, 0), size, GET_SHORT(format, 2)); HLPFILE_LoadGfxByAddr(page->file, format + 2, size - 4, paragraph); break; default: WINE_FIXME("??? %u\n", GET_SHORT(format, 0)); break; } break; case 0x05: WINE_FIXME("Got an embedded element %s\n", format + 6); break; default: WINE_FIXME("Got a type %d picture\n", type); break; } if (attributes.wVSpace) paragraph->u.gfx.pos |= 0x8000; format += size; } break; case 0x89: HLPFILE_FreeLink(attributes.link); attributes.link = NULL; format += 1; break; case 0x8B: case 0x8C: WINE_FIXME("NIY non-break space/hyphen\n"); format += 1; break; #if 0 case 0xA9: format += 2; break; #endif case 0xC8: case 0xCC: WINE_TRACE("macro => %s\n", format + 3); HLPFILE_FreeLink(attributes.link); attributes.link = HLPFILE_AllocLink(hlp_link_macro, (const char*)format + 3, 0, !(*format & 4), -1); format += 3 + GET_USHORT(format, 1); break; case 0xE0: case 0xE1: WINE_WARN("jump topic 1 => %u\n", GET_UINT(format, 1)); HLPFILE_FreeLink(attributes.link); attributes.link = HLPFILE_AllocLink((*format & 1) ? hlp_link_link : hlp_link_popup, page->file->lpszPath, GET_UINT(format, 1)-16, 1, -1); format += 5; break; case 0xE2: case 0xE3: case 0xE6: case 0xE7: HLPFILE_FreeLink(attributes.link); attributes.link = HLPFILE_AllocLink((*format & 1) ? hlp_link_link : hlp_link_popup, page->file->lpszPath, GET_UINT(format, 1), !(*format & 4), -1); format += 5; break; case 0xEA: case 0xEB: case 0xEE: case 0xEF: { char* ptr = (char*) format + 8; BYTE type = format[3]; int wnd = -1; switch (type) { case 1: wnd = *ptr; /* fall through */ case 0: ptr = page->file->lpszPath; break; case 6: for (wnd = page->file->numWindows - 1; wnd >= 0; wnd--) { if (!strcmp(ptr, page->file->windows[wnd].name)) break; } if (wnd == -1) WINE_WARN("Couldn't find window info for %s\n", ptr); ptr += strlen(ptr) + 1; /* fall through */ case 4: break; default: WINE_WARN("Unknown link type %d\n", type); break; } HLPFILE_FreeLink(attributes.link); attributes.link = HLPFILE_AllocLink((*format & 4) ? hlp_link_link : hlp_link_popup, ptr, GET_UINT(format, 4), !(*format & 1), wnd); } format += 3 + GET_USHORT(format, 1); break; default: WINE_WARN("format %02x\n", *format); format++; } } } HeapFree(GetProcessHeap(), 0, text_base); return TRUE; } /****************************************************************** * HLPFILE_BrowsePage * */ BOOL HLPFILE_BrowsePage(HLPFILE_PAGE* page) { HLPFILE *hlpfile = page->file; BYTE *buf, *end; DWORD ref = page->reference; unsigned index, old_index = -1, offset, count = 0; do { if (hlpfile->version <= 16) { index = (ref - 0x0C) / hlpfile->dsize; offset = (ref - 0x0C) % hlpfile->dsize; } else { index = (ref - 0x0C) >> 14; offset = (ref - 0x0C) & 0x3FFF; } if (hlpfile->version <= 16 && index != old_index && index != 0) { /* we jumped to the next block, adjust pointers */ ref -= 12; offset -= 12; } if (index >= hlpfile->topic_maplen) {WINE_WARN("maplen\n"); break;} buf = hlpfile->topic_map[index] + offset; if (buf + 0x15 >= hlpfile->topic_end) {WINE_WARN("extra\n"); break;} end = min(buf + GET_UINT(buf, 0), hlpfile->topic_end); if (index != old_index) {old_index = index;} switch (buf[0x14]) { case 0x02: if (count++) goto done; break; case 0x01: case 0x20: case 0x23: if (!HLPFILE_BrowseParagraph(page, buf, end)) return FALSE; break; default: WINE_ERR("buf[0x14] = %x\n", buf[0x14]); } if (hlpfile->version <= 16) { ref += GET_UINT(buf, 0xc); if (GET_UINT(buf, 0xc) == 0) break; } else ref = GET_UINT(buf, 0xc); } while (ref != 0xffffffff); done: return TRUE; } /****************************************************************** * HLPFILE_ReadFont * * */ static BOOL HLPFILE_ReadFont(HLPFILE* hlpfile) { BYTE *ref, *end; unsigned i, len, idx; unsigned face_num, dscr_num, face_offset, dscr_offset; BYTE flag, family; if (!HLPFILE_FindSubFile(hlpfile, "|FONT", &ref, &end)) { WINE_WARN("no subfile FONT\n"); hlpfile->numFonts = 0; hlpfile->fonts = NULL; return FALSE; } ref += 9; face_num = GET_USHORT(ref, 0); dscr_num = GET_USHORT(ref, 2); face_offset = GET_USHORT(ref, 4); dscr_offset = GET_USHORT(ref, 6); WINE_TRACE("Got NumFacenames=%u@%u NumDesc=%u@%u\n", face_num, face_offset, dscr_num, dscr_offset); hlpfile->numFonts = dscr_num; hlpfile->fonts = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_FONT) * dscr_num); len = (dscr_offset - face_offset) / face_num; /* EPP for (i = face_offset; i < dscr_offset; i += len) */ /* EPP WINE_FIXME("[%d]: %*s\n", i / len, len, ref + i); */ for (i = 0; i < dscr_num; i++) { flag = ref[dscr_offset + i * 11 + 0]; family = ref[dscr_offset + i * 11 + 2]; hlpfile->fonts[i].LogFont.lfHeight = -ref[dscr_offset + i * 11 + 1] / 2 - 3; hlpfile->fonts[i].LogFont.lfWidth = 0; hlpfile->fonts[i].LogFont.lfEscapement = 0; hlpfile->fonts[i].LogFont.lfOrientation = 0; hlpfile->fonts[i].LogFont.lfWeight = (flag & 1) ? 700 : 400; hlpfile->fonts[i].LogFont.lfItalic = (flag & 2) ? TRUE : FALSE; hlpfile->fonts[i].LogFont.lfUnderline = (flag & 4) ? TRUE : FALSE; hlpfile->fonts[i].LogFont.lfStrikeOut = (flag & 8) ? TRUE : FALSE; hlpfile->fonts[i].LogFont.lfCharSet = DEFAULT_CHARSET; hlpfile->fonts[i].LogFont.lfOutPrecision = OUT_DEFAULT_PRECIS; hlpfile->fonts[i].LogFont.lfClipPrecision = CLIP_DEFAULT_PRECIS; hlpfile->fonts[i].LogFont.lfQuality = DEFAULT_QUALITY; hlpfile->fonts[i].LogFont.lfPitchAndFamily = DEFAULT_PITCH; switch (family) { case 0x01: hlpfile->fonts[i].LogFont.lfPitchAndFamily |= FF_MODERN; break; case 0x02: hlpfile->fonts[i].LogFont.lfPitchAndFamily |= FF_ROMAN; break; case 0x03: hlpfile->fonts[i].LogFont.lfPitchAndFamily |= FF_SWISS; break; case 0x04: hlpfile->fonts[i].LogFont.lfPitchAndFamily |= FF_SCRIPT; break; case 0x05: hlpfile->fonts[i].LogFont.lfPitchAndFamily |= FF_DECORATIVE; break; default: WINE_FIXME("Unknown family %u\n", family); } idx = GET_USHORT(ref, dscr_offset + i * 11 + 3); if (idx < face_num) { memcpy(hlpfile->fonts[i].LogFont.lfFaceName, ref + face_offset + idx * len, min(len, LF_FACESIZE - 1)); hlpfile->fonts[i].LogFont.lfFaceName[min(len, LF_FACESIZE - 1)] = '\0'; } else { WINE_FIXME("Too high face ref (%u/%u)\n", idx, face_num); strcpy(hlpfile->fonts[i].LogFont.lfFaceName, "Helv"); } hlpfile->fonts[i].hFont = 0; hlpfile->fonts[i].color = RGB(ref[dscr_offset + i * 11 + 5], ref[dscr_offset + i * 11 + 6], ref[dscr_offset + i * 11 + 7]); #define X(b,s) ((flag & (1 << b)) ? "-"s: "") WINE_TRACE("Font[%d]: flags=%02x%s%s%s%s%s%s pSize=%u family=%u face=%s[%u] color=%08x\n", i, flag, X(0, "bold"), X(1, "italic"), X(2, "underline"), X(3, "strikeOut"), X(4, "dblUnderline"), X(5, "smallCaps"), ref[dscr_offset + i * 11 + 1], family, hlpfile->fonts[i].LogFont.lfFaceName, idx, GET_UINT(ref, dscr_offset + i * 11 + 5) & 0x00FFFFFF); } return TRUE; } /*********************************************************************** * * HLPFILE_ReadFileToBuffer */ static BOOL HLPFILE_ReadFileToBuffer(HLPFILE* hlpfile, HFILE hFile) { BYTE header[16], dummy[1]; if (_hread(hFile, header, 16) != 16) {WINE_WARN("header\n"); return FALSE;}; /* sanity checks */ if (GET_UINT(header, 0) != 0x00035F3F) {WINE_WARN("wrong header\n"); return FALSE;}; hlpfile->file_buffer_size = GET_UINT(header, 12); hlpfile->file_buffer = HeapAlloc(GetProcessHeap(), 0, hlpfile->file_buffer_size + 1); if (!hlpfile->file_buffer) return FALSE; memcpy(hlpfile->file_buffer, header, 16); if (_hread(hFile, hlpfile->file_buffer + 16, hlpfile->file_buffer_size - 16) !=hlpfile->file_buffer_size - 16) {WINE_WARN("filesize1\n"); return FALSE;}; if (_hread(hFile, dummy, 1) != 0) WINE_WARN("filesize2\n"); hlpfile->file_buffer[hlpfile->file_buffer_size] = '\0'; /* FIXME: was '0', sounds backwards to me */ return TRUE; } /************************************************************************** * comp_FindSubFile * * HLPFILE_BPTreeCompare function for HLPFILE directory. * */ static int comp_FindSubFile(void *p, const void *key, int leaf, void** next) { *next = (char *)p+strlen(p)+(leaf?5:3); WINE_TRACE("Comparing '%s' with '%s'\n", (char *)p, (char *)key); return strcmp(p, key); } /*********************************************************************** * * HLPFILE_FindSubFile */ static BOOL HLPFILE_FindSubFile(HLPFILE* hlpfile, LPCSTR name, BYTE **subbuf, BYTE **subend) { BYTE *ptr; WINE_TRACE("looking for file '%s'\n", name); ptr = HLPFILE_BPTreeSearch(hlpfile->file_buffer + GET_UINT(hlpfile->file_buffer, 4), name, comp_FindSubFile); if (!ptr) return FALSE; *subbuf = hlpfile->file_buffer + GET_UINT(ptr, strlen(name)+1); if (*subbuf >= hlpfile->file_buffer + hlpfile->file_buffer_size) { WINE_ERR("internal file %s does not fit\n", name); return FALSE; } *subend = *subbuf + GET_UINT(*subbuf, 0); if (*subend > hlpfile->file_buffer + hlpfile->file_buffer_size) { WINE_ERR("internal file %s does not fit\n", name); return FALSE; } if (GET_UINT(*subbuf, 0) < GET_UINT(*subbuf, 4) + 9) { WINE_ERR("invalid size provided for internal file %s\n", name); return FALSE; } return TRUE; } /*********************************************************************** * * HLPFILE_SystemCommands */ static BOOL HLPFILE_SystemCommands(HLPFILE* hlpfile) { BYTE *buf, *ptr, *end; HLPFILE_MACRO *macro, **m; LPSTR p; unsigned short magic, minor, major, flags; hlpfile->lpszTitle = NULL; if (!HLPFILE_FindSubFile(hlpfile, "|SYSTEM", &buf, &end)) return FALSE; magic = GET_USHORT(buf + 9, 0); minor = GET_USHORT(buf + 9, 2); major = GET_USHORT(buf + 9, 4); /* gen date on 4 bytes */ flags = GET_USHORT(buf + 9, 10); WINE_TRACE("Got system header: magic=%04x version=%d.%d flags=%04x\n", magic, major, minor, flags); if (magic != 0x036C || major != 1) {WINE_WARN("Wrong system header\n"); return FALSE;} if (minor <= 16) { hlpfile->tbsize = 0x800; hlpfile->compressed = 0; } else if (flags == 0) { hlpfile->tbsize = 0x1000; hlpfile->compressed = 0; } else if (flags == 4) { hlpfile->tbsize = 0x1000; hlpfile->compressed = 1; } else { hlpfile->tbsize = 0x800; hlpfile->compressed = 1; } if (hlpfile->compressed) hlpfile->dsize = 0x4000; else hlpfile->dsize = hlpfile->tbsize - 0x0C; hlpfile->version = minor; hlpfile->flags = flags; for (ptr = buf + 0x15; ptr + 4 <= end; ptr += GET_USHORT(ptr, 2) + 4) { char *str = (char*) ptr + 4; switch (GET_USHORT(ptr, 0)) { case 1: if (hlpfile->lpszTitle) {WINE_WARN("title\n"); break;} hlpfile->lpszTitle = HeapAlloc(GetProcessHeap(), 0, strlen(str) + 1); if (!hlpfile->lpszTitle) return FALSE; lstrcpy(hlpfile->lpszTitle, str); WINE_TRACE("Title: %s\n", hlpfile->lpszTitle); break; case 2: if (hlpfile->lpszCopyright) {WINE_WARN("copyright\n"); break;} hlpfile->lpszCopyright = HeapAlloc(GetProcessHeap(), 0, strlen(str) + 1); if (!hlpfile->lpszCopyright) return FALSE; lstrcpy(hlpfile->lpszCopyright, str); WINE_TRACE("Copyright: %s\n", hlpfile->lpszCopyright); break; case 3: if (GET_USHORT(ptr, 2) != 4) {WINE_WARN("system3\n");break;} hlpfile->contents_start = GET_UINT(ptr, 4); WINE_TRACE("Setting contents start at %08lx\n", hlpfile->contents_start); break; case 4: macro = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_MACRO) + lstrlen(str) + 1); if (!macro) break; p = (char*)macro + sizeof(HLPFILE_MACRO); lstrcpy(p, str); macro->lpszMacro = p; macro->next = 0; for (m = &hlpfile->first_macro; *m; m = &(*m)->next); *m = macro; break; case 6: if (GET_USHORT(ptr, 2) != 90) {WINE_WARN("system6\n");break;} if (hlpfile->windows) hlpfile->windows = HeapReAlloc(GetProcessHeap(), 0, hlpfile->windows, sizeof(HLPFILE_WINDOWINFO) * ++hlpfile->numWindows); else hlpfile->windows = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_WINDOWINFO) * ++hlpfile->numWindows); if (hlpfile->windows) { unsigned flags = GET_USHORT(ptr, 4); HLPFILE_WINDOWINFO* wi = &hlpfile->windows[hlpfile->numWindows - 1]; if (flags & 0x0001) strcpy(wi->type, &str[2]); else wi->type[0] = '\0'; if (flags & 0x0002) strcpy(wi->name, &str[12]); else wi->name[0] = '\0'; if (flags & 0x0004) strcpy(wi->caption, &str[21]); else lstrcpynA(wi->caption, hlpfile->lpszTitle, sizeof(wi->caption)); wi->origin.x = (flags & 0x0008) ? GET_USHORT(ptr, 76) : CW_USEDEFAULT; wi->origin.y = (flags & 0x0010) ? GET_USHORT(ptr, 78) : CW_USEDEFAULT; wi->size.cx = (flags & 0x0020) ? GET_USHORT(ptr, 80) : CW_USEDEFAULT; wi->size.cy = (flags & 0x0040) ? GET_USHORT(ptr, 82) : CW_USEDEFAULT; wi->style = (flags & 0x0080) ? GET_USHORT(ptr, 84) : SW_SHOW; wi->win_style = WS_OVERLAPPEDWINDOW; wi->sr_color = (flags & 0x0100) ? GET_UINT(ptr, 86) : 0xFFFFFF; wi->nsr_color = (flags & 0x0200) ? GET_UINT(ptr, 90) : 0xFFFFFF; WINE_TRACE("System-Window: flags=%c%c%c%c%c%c%c%c type=%s name=%s caption=%s (%d,%d)x(%d,%d)\n", flags & 0x0001 ? 'T' : 't', flags & 0x0002 ? 'N' : 'n', flags & 0x0004 ? 'C' : 'c', flags & 0x0008 ? 'X' : 'x', flags & 0x0010 ? 'Y' : 'y', flags & 0x0020 ? 'W' : 'w', flags & 0x0040 ? 'H' : 'h', flags & 0x0080 ? 'S' : 's', wi->type, wi->name, wi->caption, wi->origin.x, wi->origin.y, wi->size.cx, wi->size.cy); } break; case 8: WINE_WARN("Citation: '%s'\n", ptr + 4); break; default: WINE_WARN("Unsupported SystemRecord[%d]\n", GET_USHORT(ptr, 0)); } } if (!hlpfile->lpszTitle) hlpfile->lpszTitle = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, 1); return TRUE; } /*********************************************************************** * * HLPFILE_UncompressedLZ77_Size */ static INT HLPFILE_UncompressedLZ77_Size(BYTE *ptr, BYTE *end) { int i, newsize = 0; while (ptr < end) { int mask = *ptr++; for (i = 0; i < 8 && ptr < end; i++, mask >>= 1) { if (mask & 1) { int code = GET_USHORT(ptr, 0); int len = 3 + (code >> 12); newsize += len; ptr += 2; } else newsize++, ptr++; } } return newsize; } /*********************************************************************** * * HLPFILE_UncompressLZ77 */ static BYTE *HLPFILE_UncompressLZ77(BYTE *ptr, BYTE *end, BYTE *newptr) { int i; while (ptr < end) { int mask = *ptr++; for (i = 0; i < 8 && ptr < end; i++, mask >>= 1) { if (mask & 1) { int code = GET_USHORT(ptr, 0); int len = 3 + (code >> 12); int offset = code & 0xfff; /* * We must copy byte-by-byte here. We cannot use memcpy nor * memmove here. Just example: * a[]={1,2,3,4,5,6,7,8,9,10} * newptr=a+2; * offset=1; * We expect: * {1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 11, 12} */ for (; len>0; len--, newptr++) *newptr = *(newptr-offset-1); ptr += 2; } else *newptr++ = *ptr++; } } return newptr; } /*********************************************************************** * * HLPFILE_UncompressLZ77_Phrases */ static BOOL HLPFILE_UncompressLZ77_Phrases(HLPFILE* hlpfile) { UINT i, num, dec_size, head_size; BYTE *buf, *end; if (!HLPFILE_FindSubFile(hlpfile, "|Phrases", &buf, &end)) return FALSE; if (hlpfile->version <= 16) head_size = 13; else head_size = 17; num = hlpfile->num_phrases = GET_USHORT(buf, 9); if (buf + 2 * num + 0x13 >= end) {WINE_WARN("1a\n"); return FALSE;}; if (hlpfile->version <= 16) dec_size = end - buf - 15 - 2 * num; else dec_size = HLPFILE_UncompressedLZ77_Size(buf + 0x13 + 2 * num, end); hlpfile->phrases_offsets = HeapAlloc(GetProcessHeap(), 0, sizeof(unsigned) * (num + 1)); hlpfile->phrases_buffer = HeapAlloc(GetProcessHeap(), 0, dec_size); if (!hlpfile->phrases_offsets || !hlpfile->phrases_buffer) { HeapFree(GetProcessHeap(), 0, hlpfile->phrases_offsets); HeapFree(GetProcessHeap(), 0, hlpfile->phrases_buffer); return FALSE; } for (i = 0; i <= num; i++) hlpfile->phrases_offsets[i] = GET_USHORT(buf, 0x11 + 2 * i) - 2 * num - 2; if (hlpfile->version <= 16) memcpy(hlpfile->phrases_buffer, buf + 15 + 2*num, dec_size); else HLPFILE_UncompressLZ77(buf + 0x13 + 2 * num, end, (BYTE*)hlpfile->phrases_buffer); hlpfile->hasPhrases = TRUE; return TRUE; } /*********************************************************************** * * HLPFILE_Uncompress_Phrases40 */ static BOOL HLPFILE_Uncompress_Phrases40(HLPFILE* hlpfile) { UINT num; INT dec_size, cpr_size; BYTE *buf_idx, *end_idx; BYTE *buf_phs, *end_phs; long* ptr, mask = 0; unsigned int i; unsigned short bc, n; if (!HLPFILE_FindSubFile(hlpfile, "|PhrIndex", &buf_idx, &end_idx) || !HLPFILE_FindSubFile(hlpfile, "|PhrImage", &buf_phs, &end_phs)) return FALSE; ptr = (long*)(buf_idx + 9 + 28); bc = GET_USHORT(buf_idx, 9 + 24) & 0x0F; num = hlpfile->num_phrases = GET_USHORT(buf_idx, 9 + 4); WINE_TRACE("Index: Magic=%08x #entries=%u CpsdSize=%u PhrImgSize=%u\n" "\tPhrImgCprsdSize=%u 0=%u bc=%x ukn=%x\n", GET_UINT(buf_idx, 9 + 0), GET_UINT(buf_idx, 9 + 4), GET_UINT(buf_idx, 9 + 8), GET_UINT(buf_idx, 9 + 12), GET_UINT(buf_idx, 9 + 16), GET_UINT(buf_idx, 9 + 20), GET_USHORT(buf_idx, 9 + 24), GET_USHORT(buf_idx, 9 + 26)); dec_size = GET_UINT(buf_idx, 9 + 12); cpr_size = GET_UINT(buf_idx, 9 + 16); if (dec_size != cpr_size && dec_size != HLPFILE_UncompressedLZ77_Size(buf_phs + 9, end_phs)) { WINE_WARN("size mismatch %u %u\n", dec_size, HLPFILE_UncompressedLZ77_Size(buf_phs + 9, end_phs)); dec_size = max(dec_size, HLPFILE_UncompressedLZ77_Size(buf_phs + 9, end_phs)); } hlpfile->phrases_offsets = HeapAlloc(GetProcessHeap(), 0, sizeof(unsigned) * (num + 1)); hlpfile->phrases_buffer = HeapAlloc(GetProcessHeap(), 0, dec_size); if (!hlpfile->phrases_offsets || !hlpfile->phrases_buffer) { HeapFree(GetProcessHeap(), 0, hlpfile->phrases_offsets); HeapFree(GetProcessHeap(), 0, hlpfile->phrases_buffer); return FALSE; } #define getbit() (ptr += (mask < 0), mask = mask*2 + (mask<=0), (*ptr & mask) != 0) hlpfile->phrases_offsets[0] = 0; for (i = 0; i < num; i++) { for (n = 1; getbit(); n += 1 << bc); if (getbit()) n++; if (bc > 1 && getbit()) n += 2; if (bc > 2 && getbit()) n += 4; if (bc > 3 && getbit()) n += 8; if (bc > 4 && getbit()) n += 16; hlpfile->phrases_offsets[i + 1] = hlpfile->phrases_offsets[i] + n; } #undef getbit if (dec_size == cpr_size) memcpy(hlpfile->phrases_buffer, buf_phs + 9, dec_size); else HLPFILE_UncompressLZ77(buf_phs + 9, end_phs, (BYTE*)hlpfile->phrases_buffer); hlpfile->hasPhrases40 = TRUE; return TRUE; } /*********************************************************************** * * HLPFILE_Uncompress_Topic */ static BOOL HLPFILE_Uncompress_Topic(HLPFILE* hlpfile) { BYTE *buf, *ptr, *end, *newptr; unsigned int i, newsize = 0; unsigned int topic_size; if (!HLPFILE_FindSubFile(hlpfile, "|TOPIC", &buf, &end)) {WINE_WARN("topic0\n"); return FALSE;} buf += 9; /* Skip file header */ topic_size = end - buf; if (hlpfile->compressed) { hlpfile->topic_maplen = (topic_size - 1) / hlpfile->tbsize + 1; for (i = 0; i < hlpfile->topic_maplen; i++) { ptr = buf + i * hlpfile->tbsize; /* I don't know why, it's necessary for printman.hlp */ if (ptr + 0x44 > end) ptr = end - 0x44; newsize += HLPFILE_UncompressedLZ77_Size(ptr + 0xc, min(end, ptr + hlpfile->tbsize)); } hlpfile->topic_map = HeapAlloc(GetProcessHeap(), 0, hlpfile->topic_maplen * sizeof(hlpfile->topic_map[0]) + newsize); if (!hlpfile->topic_map) return FALSE; newptr = (BYTE*)(hlpfile->topic_map + hlpfile->topic_maplen); hlpfile->topic_end = newptr + newsize; for (i = 0; i < hlpfile->topic_maplen; i++) { ptr = buf + i * hlpfile->tbsize; if (ptr + 0x44 > end) ptr = end - 0x44; hlpfile->topic_map[i] = newptr; newptr = HLPFILE_UncompressLZ77(ptr + 0xc, min(end, ptr + hlpfile->tbsize), newptr); } } else { /* basically, we need to copy the TopicBlockSize byte pages * (removing the first 0x0C) in one single area in memory */ hlpfile->topic_maplen = (topic_size - 1) / hlpfile->tbsize + 1; hlpfile->topic_map = HeapAlloc(GetProcessHeap(), 0, hlpfile->topic_maplen * (sizeof(hlpfile->topic_map[0]) + hlpfile->dsize)); if (!hlpfile->topic_map) return FALSE; newptr = (BYTE*)(hlpfile->topic_map + hlpfile->topic_maplen); hlpfile->topic_end = newptr + topic_size; for (i = 0; i < hlpfile->topic_maplen; i++) { hlpfile->topic_map[i] = newptr + i * hlpfile->dsize; memcpy(hlpfile->topic_map[i], buf + i * hlpfile->tbsize + 0x0C, hlpfile->dsize); } } return TRUE; } /*********************************************************************** * * HLPFILE_Uncompress2 */ static void HLPFILE_Uncompress2(HLPFILE* hlpfile, const BYTE *ptr, const BYTE *end, BYTE *newptr, const BYTE *newend) { BYTE *phptr, *phend; UINT code; UINT index; while (ptr < end && newptr < newend) { if (!*ptr || *ptr >= 0x10) *newptr++ = *ptr++; else { code = 0x100 * ptr[0] + ptr[1]; index = (code - 0x100) / 2; phptr = (BYTE*)hlpfile->phrases_buffer + hlpfile->phrases_offsets[index]; phend = (BYTE*)hlpfile->phrases_buffer + hlpfile->phrases_offsets[index + 1]; if (newptr + (phend - phptr) > newend) { WINE_FIXME("buffer overflow %p > %p for %lu bytes\n", newptr, newend, (SIZE_T)(phend - phptr)); return; } memcpy(newptr, phptr, phend - phptr); newptr += phend - phptr; if (code & 1) *newptr++ = ' '; ptr += 2; } } if (newptr > newend) WINE_FIXME("buffer overflow %p > %p\n", newptr, newend); } /****************************************************************** * HLPFILE_Uncompress3 * * */ static BOOL HLPFILE_Uncompress3(HLPFILE* hlpfile, char* dst, const char* dst_end, const BYTE* src, const BYTE* src_end) { unsigned int idx, len; for (; src < src_end; src++) { if ((*src & 1) == 0) { idx = *src / 2; if (idx > hlpfile->num_phrases) { WINE_ERR("index in phrases %d/%d\n", idx, hlpfile->num_phrases); len = 0; } else { len = hlpfile->phrases_offsets[idx + 1] - hlpfile->phrases_offsets[idx]; if (dst + len <= dst_end) memcpy(dst, &hlpfile->phrases_buffer[hlpfile->phrases_offsets[idx]], len); } } else if ((*src & 0x03) == 0x01) { idx = (*src + 1) * 64; idx += *++src; if (idx > hlpfile->num_phrases) { WINE_ERR("index in phrases %d/%d\n", idx, hlpfile->num_phrases); len = 0; } else { len = hlpfile->phrases_offsets[idx + 1] - hlpfile->phrases_offsets[idx]; if (dst + len <= dst_end) memcpy(dst, &hlpfile->phrases_buffer[hlpfile->phrases_offsets[idx]], len); } } else if ((*src & 0x07) == 0x03) { len = (*src / 8) + 1; if (dst + len <= dst_end) memcpy(dst, src + 1, len); src += len; } else { len = (*src / 16) + 1; if (dst + len <= dst_end) memset(dst, ((*src & 0x0F) == 0x07) ? ' ' : 0, len); } dst += len; } if (dst > dst_end) WINE_ERR("buffer overflow (%p > %p)\n", dst, dst_end); return TRUE; } /****************************************************************** * HLPFILE_UncompressRLE * * */ static void HLPFILE_UncompressRLE(const BYTE* src, const BYTE* end, BYTE** dst, unsigned dstsz) { BYTE ch; BYTE* sdst = *dst + dstsz; while (src < end) { ch = *src++; if (ch & 0x80) { ch &= 0x7F; if ((*dst) + ch <= sdst) memcpy(*dst, src, ch); src += ch; } else { if ((*dst) + ch <= sdst) memset(*dst, (char)*src, ch); src++; } *dst += ch; } if (*dst != sdst) WINE_WARN("Buffer X-flow: d(%lu) instead of d(%u)\n", (SIZE_T)(*dst - (sdst - dstsz)), dstsz); } /************************************************************************** * HLPFILE_BPTreeSearch * * Searches for an element in B+ tree * * PARAMS * buf [I] pointer to the embedded file structured as a B+ tree * key [I] pointer to data to find * comp [I] compare function * * RETURNS * Pointer to block identified by key, or NULL if failure. * */ void* HLPFILE_BPTreeSearch(BYTE* buf, const void* key, HLPFILE_BPTreeCompare comp) { unsigned magic; unsigned page_size; unsigned cur_page; unsigned level; BYTE *pages, *ptr, *newptr; int i, entries; int ret; magic = GET_USHORT(buf, 9); if (magic != 0x293B) { WINE_ERR("Invalid magic in B+ tree: 0x%x\n", magic); return NULL; } page_size = GET_USHORT(buf, 9+4); cur_page = GET_USHORT(buf, 9+26); level = GET_USHORT(buf, 9+32); pages = buf + 9 + 38; while (--level > 0) { ptr = pages + cur_page*page_size; entries = GET_SHORT(ptr, 2); ptr += 6; for (i = 0; i < entries; i++) { if (comp(ptr, key, 0, (void **)&newptr) > 0) break; ptr = newptr; } cur_page = GET_USHORT(ptr-2, 0); } ptr = pages + cur_page*page_size; entries = GET_SHORT(ptr, 2); ptr += 8; for (i = 0; i < entries; i++) { ret = comp(ptr, key, 1, (void **)&newptr); if (ret == 0) return ptr; if (ret > 0) return NULL; ptr = newptr; } return NULL; } /************************************************************************** * HLPFILE_BPTreeEnum * * Enumerates elements in B+ tree. * * PARAMS * buf [I] pointer to the embedded file structured as a B+ tree * cb [I] compare function * cookie [IO] cookie for cb function */ void HLPFILE_BPTreeEnum(BYTE* buf, HLPFILE_BPTreeCallback cb, void* cookie) { unsigned magic; unsigned page_size; unsigned cur_page; unsigned level; BYTE *pages, *ptr, *newptr; int i, entries; magic = GET_USHORT(buf, 9); if (magic != 0x293B) { WINE_ERR("Invalid magic in B+ tree: 0x%x\n", magic); return; } page_size = GET_USHORT(buf, 9+4); cur_page = GET_USHORT(buf, 9+26); level = GET_USHORT(buf, 9+32); pages = buf + 9 + 38; while (--level > 0) { ptr = pages + cur_page*page_size; cur_page = GET_USHORT(ptr, 4); } while (cur_page != 0xFFFF) { ptr = pages + cur_page*page_size; entries = GET_SHORT(ptr, 2); ptr += 8; for (i = 0; i < entries; i++) { cb(ptr, (void **)&newptr, cookie); ptr = newptr; } cur_page = GET_USHORT(pages+cur_page*page_size, 6); } } /*********************************************************************** * * HLPFILE_GetContext */ static BOOL HLPFILE_GetContext(HLPFILE *hlpfile) { BYTE *cbuf, *cend; unsigned clen; if (!HLPFILE_FindSubFile(hlpfile, "|CONTEXT", &cbuf, &cend)) {WINE_WARN("context0\n"); return FALSE;} clen = cend - cbuf; hlpfile->Context = HeapAlloc(GetProcessHeap(), 0, clen); if (!hlpfile->Context) return FALSE; memcpy(hlpfile->Context, cbuf, clen); return TRUE; } /*********************************************************************** * * HLPFILE_GetKeywords */ static BOOL HLPFILE_GetKeywords(HLPFILE *hlpfile) { BYTE *cbuf, *cend; unsigned clen; if (!HLPFILE_FindSubFile(hlpfile, "|KWBTREE", &cbuf, &cend)) return FALSE; clen = cend - cbuf; hlpfile->kwbtree = HeapAlloc(GetProcessHeap(), 0, clen); if (!hlpfile->kwbtree) return FALSE; memcpy(hlpfile->kwbtree, cbuf, clen); if (!HLPFILE_FindSubFile(hlpfile, "|KWDATA", &cbuf, &cend)) { WINE_ERR("corrupted help file: kwbtree present but kwdata absent\n"); HeapFree(GetProcessHeap(), 0, hlpfile->kwbtree); return FALSE; } clen = cend - cbuf; hlpfile->kwdata = HeapAlloc(GetProcessHeap(), 0, clen); if (!hlpfile->kwdata) { HeapFree(GetProcessHeap(), 0, hlpfile->kwdata); return FALSE; } memcpy(hlpfile->kwdata, cbuf, clen); return TRUE; } /*********************************************************************** * * HLPFILE_GetMap */ static BOOL HLPFILE_GetMap(HLPFILE *hlpfile) { BYTE *cbuf, *cend; unsigned entries, i; if (!HLPFILE_FindSubFile(hlpfile, "|CTXOMAP", &cbuf, &cend)) {WINE_WARN("no map section\n"); return FALSE;} entries = GET_USHORT(cbuf, 9); hlpfile->Map = HeapAlloc(GetProcessHeap(), 0, entries * sizeof(HLPFILE_MAP)); if (!hlpfile->Map) return FALSE; hlpfile->wMapLen = entries; for (i = 0; i < entries; i++) { hlpfile->Map[i].lMap = GET_UINT(cbuf+11,i*8); hlpfile->Map[i].offset = GET_UINT(cbuf+11,i*8+4); } return TRUE; } /****************************************************************** * HLPFILE_DeleteLink * * */ void HLPFILE_FreeLink(HLPFILE_LINK* link) { if (link && !--link->wRefCount) HeapFree(GetProcessHeap(), 0, link); } /*********************************************************************** * * HLPFILE_DeleteParagraph */ static void HLPFILE_DeleteParagraph(HLPFILE_PARAGRAPH* paragraph) { HLPFILE_PARAGRAPH* next; while (paragraph) { next = paragraph->next; if (paragraph->cookie == para_metafile) DeleteMetaFile(paragraph->u.gfx.u.mfp.hMF); HLPFILE_FreeLink(paragraph->link); HeapFree(GetProcessHeap(), 0, paragraph); paragraph = next; } } /*********************************************************************** * * DeleteMacro */ static void HLPFILE_DeleteMacro(HLPFILE_MACRO* macro) { HLPFILE_MACRO* next; while (macro) { next = macro->next; HeapFree(GetProcessHeap(), 0, macro); macro = next; } } /*********************************************************************** * * DeletePage */ static void HLPFILE_DeletePage(HLPFILE_PAGE* page) { HLPFILE_PAGE* next; while (page) { next = page->next; HLPFILE_DeleteParagraph(page->first_paragraph); HLPFILE_DeleteMacro(page->first_macro); HeapFree(GetProcessHeap(), 0, page); page = next; } } /*********************************************************************** * * HLPFILE_FreeHlpFile */ void HLPFILE_FreeHlpFile(HLPFILE* hlpfile) { unsigned i; if (!hlpfile || --hlpfile->wRefCount > 0) return; if (hlpfile->next) hlpfile->next->prev = hlpfile->prev; if (hlpfile->prev) hlpfile->prev->next = hlpfile->next; else first_hlpfile = hlpfile->next; if (hlpfile->numFonts) { for (i = 0; i < hlpfile->numFonts; i++) { DeleteObject(hlpfile->fonts[i].hFont); } HeapFree(GetProcessHeap(), 0, hlpfile->fonts); } if (hlpfile->numBmps) { for (i = 0; i < hlpfile->numBmps; i++) { DeleteObject(hlpfile->bmps[i]); } HeapFree(GetProcessHeap(), 0, hlpfile->bmps); } HLPFILE_DeletePage(hlpfile->first_page); HLPFILE_DeleteMacro(hlpfile->first_macro); if (hlpfile->numWindows) HeapFree(GetProcessHeap(), 0, hlpfile->windows); HeapFree(GetProcessHeap(), 0, hlpfile->Context); HeapFree(GetProcessHeap(), 0, hlpfile->Map); HeapFree(GetProcessHeap(), 0, hlpfile->lpszTitle); HeapFree(GetProcessHeap(), 0, hlpfile->lpszCopyright); HeapFree(GetProcessHeap(), 0, hlpfile->file_buffer); HeapFree(GetProcessHeap(), 0, hlpfile->phrases_offsets); HeapFree(GetProcessHeap(), 0, hlpfile->phrases_buffer); HeapFree(GetProcessHeap(), 0, hlpfile->topic_map); HeapFree(GetProcessHeap(), 0, hlpfile); }