/* * Help Viewer * * Copyright 1996 Ulrich Schmid * 2002 Eric Pouech * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 BYTE *file_buffer; static struct { UINT num; unsigned* offsets; char* buffer; } phrases; static struct { BYTE** map; BYTE* end; UINT wMapLen; } topic; static struct { UINT wFont; UINT wIndent; UINT wHSpace; UINT wVSpace; HLPFILE_LINK* link; } attributes; static BOOL HLPFILE_DoReadHlpFile(HLPFILE*, LPCSTR); static BOOL HLPFILE_ReadFileToBuffer(HFILE); static BOOL HLPFILE_FindSubFile(LPCSTR name, 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_AddPage(HLPFILE*, BYTE*, BYTE*, unsigned); static BOOL HLPFILE_AddParagraph(HLPFILE*, BYTE *, BYTE*, unsigned*); static void HLPFILE_Uncompress2(const BYTE*, const BYTE*, BYTE*, const BYTE*); static BOOL HLPFILE_Uncompress3(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); #if 0 /*********************************************************************** * * HLPFILE_PageByNumber */ static HLPFILE_PAGE *HLPFILE_PageByNumber(LPCSTR lpszPath, UINT wNum) { HLPFILE_PAGE *page; HLPFILE *hlpfile = HLPFILE_ReadHlpFile(lpszPath); if (!hlpfile) return 0; WINE_TRACE("[%s/%u]\n", lpszPath, wNum); for (page = hlpfile->first_page; page && wNum; page = page->next) wNum--; /* HLPFILE_FreeHlpFile(lpszPath); */ return page; } #endif /* 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 * accordinly */ /****************************************************************** * HLPFILE_PageByOffset * * */ HLPFILE_PAGE *HLPFILE_PageByOffset(HLPFILE* hlpfile, LONG offset) { HLPFILE_PAGE* page; HLPFILE_PAGE* found; if (!hlpfile) return 0; WINE_TRACE("<%s>[%lx]\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 %lu not found in file %s\n", offset, hlpfile->lpszPath); return found; } /*********************************************************************** * * HLPFILE_HlpFilePageByHash */ HLPFILE_PAGE *HLPFILE_PageByHash(HLPFILE* hlpfile, LONG lHash) { int i; if (!hlpfile) return 0; WINE_TRACE("<%s>[%lx]\n", hlpfile->lpszPath, lHash); for (i = 0; i < hlpfile->wContextLen; i++) { if (hlpfile->Context[i].lHash == lHash) return HLPFILE_PageByOffset(hlpfile, hlpfile->Context[i].offset); } WINE_ERR("Page of hash %lx not found in file %s\n", lHash, 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(), 0, sizeof(HLPFILE) + lstrlen(lpszPath) + 1); if (!hlpfile) return 0; hlpfile->lpszPath = (char*)hlpfile + sizeof(HLPFILE); hlpfile->lpszTitle = NULL; hlpfile->lpszCopyright = NULL; hlpfile->first_page = NULL; hlpfile->first_macro = NULL; hlpfile->wContextLen = 0; hlpfile->Context = NULL; hlpfile->contents_start = 0xFFFFFFFF; hlpfile->prev = NULL; hlpfile->next = first_hlpfile; hlpfile->wRefCount = 1; hlpfile->numBmps = 0; hlpfile->bmps = NULL; hlpfile->numFonts = 0; hlpfile->fonts = NULL; hlpfile->numWindows = 0; hlpfile->windows = NULL; strcpy(hlpfile->lpszPath, lpszPath); first_hlpfile = hlpfile; if (hlpfile->next) hlpfile->next->prev = hlpfile; phrases.offsets = NULL; phrases.buffer = NULL; topic.map = NULL; topic.end = NULL; file_buffer = NULL; if (!HLPFILE_DoReadHlpFile(hlpfile, lpszPath)) { HLPFILE_FreeHlpFile(hlpfile); hlpfile = 0; } HeapFree(GetProcessHeap(), 0, phrases.offsets); HeapFree(GetProcessHeap(), 0, phrases.buffer); HeapFree(GetProcessHeap(), 0, topic.map); HeapFree(GetProcessHeap(), 0, file_buffer); 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(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 = topic.map[0]; old_index = -1; offs = 0; do { BYTE* end; /* FIXME this depends on the blocksize, can be 2k in some cases */ index = (ref - 0x0C) >> 14; offset = (ref - 0x0C) & 0x3fff; WINE_TRACE("ref=%08lx => [%u/%u]\n", ref, index, offset); if (index >= topic.wMapLen) {WINE_WARN("maplen\n"); break;} buf = topic.map[index] + offset; if (buf + 0x15 >= topic.end) {WINE_WARN("extra\n"); break;} end = min(buf + GET_UINT(buf, 0), topic.end); if (index != old_index) {offs = 0; old_index = index;} switch (buf[0x14]) { case 0x02: if (!HLPFILE_AddPage(hlpfile, buf, end, index * 0x8000L + offs)) return FALSE; break; case 0x20: if (!HLPFILE_AddParagraph(hlpfile, buf, end, &len)) return FALSE; offs += len; break; case 0x23: if (!HLPFILE_AddParagraph(hlpfile, buf, end, &len)) return FALSE; offs += len; break; default: WINE_ERR("buf[0x14] = %x\n", buf[0x14]); } ref = GET_UINT(buf, 0xc); } while (ref != 0xffffffff); return HLPFILE_GetContext(hlpfile); } /*********************************************************************** * * HLPFILE_AddPage */ static BOOL HLPFILE_AddPage(HLPFILE *hlpfile, BYTE *buf, BYTE *end, unsigned offset) { HLPFILE_PAGE* page; BYTE* title; UINT titlesize; char* ptr; HLPFILE_MACRO*macro; if (buf + 0x31 > end) {WINE_WARN("page1\n"); return FALSE;}; title = buf + GET_UINT(buf, 0x10); 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 (hlpfile->hasPhrases) { HLPFILE_Uncompress2(title, end, (BYTE*)page->lpszTitle, (BYTE*)page->lpszTitle + titlesize); } else { if (GET_UINT(buf, 0x4) > GET_UINT(buf, 0) - GET_UINT(buf, 0x10)) { /* need to decompress */ HLPFILE_Uncompress3(page->lpszTitle, page->lpszTitle + titlesize, title, end); } else { memcpy(page->lpszTitle, title, titlesize); } } page->lpszTitle[titlesize] = '\0'; if (hlpfile->first_page) { HLPFILE_PAGE *p; for (p = hlpfile->first_page; p->next; p = p->next); page->prev = p; p->next = page; } else { hlpfile->first_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->browse_bwd = GET_UINT(buf, 0x19); page->browse_fwd = GET_UINT(buf, 0x1D); WINE_TRACE("Added page[%d]: title='%s' %08lx << %08x >> %08lx\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); WINE_TRACE("macro: %s\n", ptr); macro = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_MACRO) + len + 1); macro->lpszMacro = (char*)(macro + 1); memcpy((char*)macro->lpszMacro, 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_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): %u/%u\n", 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) return FALSE; HLPFILE_UncompressRLE(tmp, tmp + sz77, &tmp2, sz); if (tmp2 - dst != sz) WINE_WARN("Bogus gfx sizes (LZ77+RunLen): %u / %u\n", 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=(%ld,%ld)\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; METAFILEPICT mfp; WINE_TRACE("Loading metafile\n"); ptr = beg + 2; /* for type and pack */ mfp.mm = fetch_ushort(&ptr); /* mapping mode */ mfp.xExt = GET_USHORT(ptr, 0); mfp.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 (%ld,%ld) offs=%lu/%u,%lu\n", size, csize, mfp.xExt, mfp.yExt, off, ptr - beg, hsoff); bits = HLPFILE_DecompressGfx(beg + off, csize, size, pack); if (!bits) return FALSE; paragraph->cookie = para_metafile; mfp.hMF = NULL; paragraph->u.gfx.u.mf.hMetaFile = SetMetaFileBitsEx(size, bits); if (!paragraph->u.gfx.u.mf.hMetaFile) WINE_FIXME("Couldn't load metafile\n"); if (bits != beg + off) HeapFree(GetProcessHeap(), 0, bits); paragraph->u.gfx.u.mf.mfSize.cx = mfp.xExt; paragraph->u.gfx.u.mf.mfSize.cy = mfp.yExt; 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(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; /* 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 = (char*)link + sizeof(HLPFILE_LINK); strcpy((char*)link->lpszString, str); link->lHash = hash; link->bClrChange = clrChange ? 1 : 0; link->window = wnd; link->wRefCount = 1; WINE_TRACE("Link[%d] to %s@%08lx:%d\n", link->cookie, link->lpszString, link->lHash, link->window); return link; } /*********************************************************************** * * HLPFILE_AddParagraph */ static BOOL HLPFILE_AddParagraph(HLPFILE *hlpfile, BYTE *buf, BYTE *end, unsigned* len) { HLPFILE_PAGE *page; HLPFILE_PARAGRAPH *paragraph, **paragraphptr; UINT textsize; BYTE *format, *format_end; char *text, *text_end; long size; unsigned short bits; unsigned nc, ncol = 1; if (!hlpfile->first_page) {WINE_WARN("no page\n"); return FALSE;}; for (page = hlpfile->first_page; page->next; page = page->next) /* Nothing */; for (paragraphptr = &page->first_paragraph; *paragraphptr; paragraphptr = &(*paragraphptr)->next) /* Nothing */; if (buf + 0x19 > end) {WINE_WARN("header too small\n"); return FALSE;}; size = GET_UINT(buf, 0x4); text = HeapAlloc(GetProcessHeap(), 0, size); if (!text) return FALSE; if (hlpfile->hasPhrases) { HLPFILE_Uncompress2(buf + GET_UINT(buf, 0x10), end, (BYTE*)text, (BYTE*)text + size); } else { if (GET_UINT(buf, 0x4) > GET_UINT(buf, 0) - GET_UINT(buf, 0x10)) { /* block is compressed */ HLPFILE_Uncompress3(text, text + size, buf + GET_UINT(buf, 0x10), end); } else { text = (char*)buf + GET_UINT(buf, 0x10); } } text_end = text + size; format = buf + 0x15; format_end = buf + GET_UINT(buf, 0x10); fetch_long(&format); *len = fetch_ushort(&format); if (buf[0x14] == 0x23) { char type; 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; nc++) { WINE_TRACE("looking for format at offset %u for column %d\n", format - (buf + 0x15), nc); if (buf[0x14] == 0x23) format += 5; 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(hlpfile, 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(hlpfile, 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)); 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, hlpfile->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; char* str; if (type == 1) wnd = *ptr++; if (type == 4 || type == 6) { str = ptr; ptr += strlen(ptr) + 1; } else str = hlpfile->lpszPath; if (type == 6) { for (wnd = hlpfile->numWindows - 1; wnd >= 0; wnd--) { if (!strcmp(ptr, hlpfile->windows[wnd].name)) break; } if (wnd == -1) WINE_WARN("Couldn't find window info for %s\n", ptr); } HLPFILE_FreeLink(attributes.link); attributes.link = HLPFILE_AllocLink((*format & 4) ? hlp_link_link : hlp_link_popup, str, GET_UINT(format, 4), !(*format & 1), wnd); } format += 3 + GET_USHORT(format, 1); break; default: WINE_WARN("format %02x\n", *format); format++; } } } if (text_end != (char*)buf + GET_UINT(buf, 0x10) + size) HeapFree(GetProcessHeap(), 0, text_end - size); 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("|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; 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 = ANSI_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(HFILE hFile) { BYTE header[16], dummy[1]; UINT size; 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;}; size = GET_UINT(header, 12); file_buffer = HeapAlloc(GetProcessHeap(), 0, size + 1); if (!file_buffer) return FALSE; memcpy(file_buffer, header, 16); if (_hread(hFile, file_buffer + 16, size - 16) != size - 16) {WINE_WARN("filesize1\n"); return FALSE;}; if (_hread(hFile, dummy, 1) != 0) WINE_WARN("filesize2\n"); file_buffer[size] = '\0'; /* FIXME: was '0', sounds ackward to me */ return TRUE; } /*********************************************************************** * * HLPFILE_FindSubFile */ static BOOL HLPFILE_FindSubFile(LPCSTR name, BYTE **subbuf, BYTE **subend) { BYTE *root = file_buffer + GET_UINT(file_buffer, 4); BYTE *end = file_buffer + GET_UINT(file_buffer, 12); BYTE *ptr; BYTE *bth; unsigned pgsize; unsigned pglast; unsigned nentries; unsigned i, n; bth = root + 9; /* FIXME: this should be using the EnumBTree functions from this file */ pgsize = GET_USHORT(bth, 4); WINE_TRACE("%s => pgsize=%u #pg=%u rootpg=%u #lvl=%u\n", name, pgsize, GET_USHORT(bth, 30), GET_USHORT(bth, 26), GET_USHORT(bth, 32)); ptr = bth + 38 + GET_USHORT(bth, 26) * pgsize; for (n = 1; n < GET_USHORT(bth, 32); n++) { nentries = GET_USHORT(ptr, 2); pglast = GET_USHORT(ptr, 4); WINE_TRACE("[%u]: #entries=%u next=%u\n", n, nentries, pglast); ptr += 6; for (i = 0; i < nentries; i++) { char *str = (char*) ptr; WINE_TRACE("<= %s\n", str); if (strcmp(name, str) < 0) break; ptr += strlen(str) + 1; pglast = GET_USHORT(ptr, 0); ptr += 2; } ptr = bth + 38 + pglast * pgsize; } nentries = GET_USHORT(ptr, 2); ptr += 8; for (i = 0; i < nentries; i++) { char* fname = (char*)ptr; ptr += strlen(fname) + 1; WINE_TRACE("\\- %s\n", fname); if (strcmp(fname, name) == 0) { *subbuf = file_buffer + GET_UINT(ptr, 0); *subend = *subbuf + GET_UINT(*subbuf, 0); if (file_buffer > *subbuf || *subbuf > *subend || *subend > end) { WINE_WARN("size mismatch\n"); return FALSE; } return TRUE; } ptr += 4; } return FALSE; } /*********************************************************************** * * 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("|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) {WINE_WARN("too old file format (NIY)\n"); return FALSE;} if (flags & 8) {WINE_WARN("Unsupported yet page size\n"); return FALSE;} 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[23]); 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->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 (%ld,%ld)x(%ld,%ld)\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; default: WINE_WARN("Unsupported SystemRecord[%d]\n", GET_USHORT(ptr, 0)); } } 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; memcpy(newptr, newptr - offset - 1, len); newptr += len; ptr += 2; } else *newptr++ = *ptr++; } } return newptr; } /*********************************************************************** * * HLPFILE_UncompressLZ77_Phrases */ static BOOL HLPFILE_UncompressLZ77_Phrases(HLPFILE* hlpfile) { UINT i, num, dec_size; BYTE *buf, *end; if (!HLPFILE_FindSubFile("|Phrases", &buf, &end)) return FALSE; num = phrases.num = GET_USHORT(buf, 9); if (buf + 2 * num + 0x13 >= end) {WINE_WARN("1a\n"); return FALSE;}; dec_size = HLPFILE_UncompressedLZ77_Size(buf + 0x13 + 2 * num, end); phrases.offsets = HeapAlloc(GetProcessHeap(), 0, sizeof(unsigned) * (num + 1)); phrases.buffer = HeapAlloc(GetProcessHeap(), 0, dec_size); if (!phrases.offsets || !phrases.buffer) return FALSE; for (i = 0; i <= num; i++) phrases.offsets[i] = GET_USHORT(buf, 0x11 + 2 * i) - 2 * num - 2; HLPFILE_UncompressLZ77(buf + 0x13 + 2 * num, end, (BYTE*)phrases.buffer); hlpfile->hasPhrases = TRUE; return TRUE; } /*********************************************************************** * * HLPFILE_Uncompress_Phrases40 */ static BOOL HLPFILE_Uncompress_Phrases40(HLPFILE* hlpfile) { UINT num, dec_size, cpr_size; BYTE *buf_idx, *end_idx; BYTE *buf_phs, *end_phs; short i, n; long* ptr, mask = 0; unsigned short bc; if (!HLPFILE_FindSubFile("|PhrIndex", &buf_idx, &end_idx) || !HLPFILE_FindSubFile("|PhrImage", &buf_phs, &end_phs)) return FALSE; ptr = (long*)(buf_idx + 9 + 28); bc = GET_USHORT(buf_idx, 9 + 24) & 0x0F; num = phrases.num = 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)); } phrases.offsets = HeapAlloc(GetProcessHeap(), 0, sizeof(unsigned) * (num + 1)); phrases.buffer = HeapAlloc(GetProcessHeap(), 0, dec_size); if (!phrases.offsets || !phrases.buffer) return FALSE; #define getbit() (ptr += (mask < 0), mask = mask*2 + (mask<=0), (*ptr & mask) != 0) 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; phrases.offsets[i + 1] = phrases.offsets[i] + n; } #undef getbit if (dec_size == cpr_size) memcpy(phrases.buffer, buf_phs + 9, dec_size); else HLPFILE_UncompressLZ77(buf_phs + 9, end_phs, (BYTE*)phrases.buffer); hlpfile->hasPhrases = FALSE; return TRUE; } /*********************************************************************** * * HLPFILE_Uncompress_Topic */ static BOOL HLPFILE_Uncompress_Topic(HLPFILE* hlpfile) { BYTE *buf, *ptr, *end, *newptr; int i, newsize = 0; if (!HLPFILE_FindSubFile("|TOPIC", &buf, &end)) {WINE_WARN("topic0\n"); return FALSE;} switch (hlpfile->flags & (8|4)) { case 8: WINE_FIXME("Unsupported format\n"); return FALSE; case 4: buf += 9; topic.wMapLen = (end - buf - 1) / 0x1000 + 1; for (i = 0; i < topic.wMapLen; i++) { ptr = buf + i * 0x1000; /* 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 + 0x1000)); } topic.map = HeapAlloc(GetProcessHeap(), 0, topic.wMapLen * sizeof(topic.map[0]) + newsize); if (!topic.map) return FALSE; newptr = (BYTE*)(topic.map + topic.wMapLen); topic.end = newptr + newsize; for (i = 0; i < topic.wMapLen; i++) { ptr = buf + i * 0x1000; if (ptr + 0x44 > end) ptr = end - 0x44; topic.map[i] = newptr; newptr = HLPFILE_UncompressLZ77(ptr + 0xc, min(end, ptr + 0x1000), newptr); } break; case 0: /* basically, we need to copy the 0x1000 byte pages (removing the first 0x0C) in * one single are in memory */ #define DST_LEN (0x1000 - 0x0C) buf += 9; newsize = end - buf; /* number of destination pages */ topic.wMapLen = (newsize - 1) / DST_LEN + 1; topic.map = HeapAlloc(GetProcessHeap(), 0, topic.wMapLen * (sizeof(topic.map[0]) + DST_LEN)); if (!topic.map) return FALSE; newptr = (BYTE*)(topic.map + topic.wMapLen); topic.end = newptr + newsize; for (i = 0; i < topic.wMapLen; i++) { topic.map[i] = newptr + i * DST_LEN; memcpy(topic.map[i], buf + i * 0x1000 + 0x0C, DST_LEN); } #undef DST_LEN break; } return TRUE; } /*********************************************************************** * * HLPFILE_Uncompress2 */ static void HLPFILE_Uncompress2(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*)phrases.buffer + phrases.offsets[index]; phend = (BYTE*)phrases.buffer + phrases.offsets[index + 1]; if (newptr + (phend - phptr) > newend) { WINE_FIXME("buffer overflow %p > %p for %d bytes\n", newptr, newend, 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(char* dst, const char* dst_end, const BYTE* src, const BYTE* src_end) { int idx, len; for (; src < src_end; src++) { if ((*src & 1) == 0) { idx = *src / 2; if (idx > phrases.num) { WINE_ERR("index in phrases %d/%d\n", idx, phrases.num); len = 0; } else { len = phrases.offsets[idx + 1] - phrases.offsets[idx]; if (dst + len <= dst_end) memcpy(dst, &phrases.buffer[phrases.offsets[idx]], len); } } else if ((*src & 0x03) == 0x01) { idx = (*src + 1) * 64; idx += *++src; if (idx > phrases.num) { WINE_ERR("index in phrases %d/%d\n", idx, phrases.num); len = 0; } else { len = phrases.offsets[idx + 1] - phrases.offsets[idx]; if (dst + len <= dst_end) memcpy(dst, &phrases.buffer[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(%u) instead of d(%u)\n", *dst - (sdst - dstsz), dstsz); } /****************************************************************** * HLPFILE_EnumBTreeLeaves * * */ static void HLPFILE_EnumBTreeLeaves(const BYTE* buf, const BYTE* end, unsigned (*fn)(const BYTE*, void*), void* user) { unsigned psize, pnext; unsigned num, nlvl; const BYTE* ptr; num = GET_UINT(buf, 9 + 34); psize = GET_USHORT(buf, 9 + 4); nlvl = GET_USHORT(buf, 9 + 32); pnext = GET_USHORT(buf, 9 + 26); WINE_TRACE("BTree: #entries=%u pagSize=%u #levels=%u #pages=%u root=%u struct%16s\n", num, psize, nlvl, GET_USHORT(buf, 9 + 30), pnext, buf + 9 + 6); if (!num) return; while (--nlvl > 0) { ptr = (buf + 9 + 38) + pnext * psize; WINE_TRACE("BTree: (index[%u]) unused=%u #entries=%u <%u\n", pnext, GET_USHORT(ptr, 0), GET_USHORT(ptr, 2), GET_USHORT(ptr, 4)); pnext = GET_USHORT(ptr, 4); } while (pnext != 0xFFFF) { const BYTE* node_page; unsigned short limit; node_page = ptr = (buf + 9 + 38) + pnext * psize; limit = GET_USHORT(ptr, 2); WINE_TRACE("BTree: (leaf [%u]) unused=%u #entries=%u <%u >%u\n", pnext, GET_USHORT(ptr, 0), limit, GET_USHORT(ptr, 4), GET_USHORT(ptr, 6)); ptr += 8; while (limit--) ptr += (fn)(ptr, user); pnext = GET_USHORT(node_page, 6); } } struct myfncb { HLPFILE* hlpfile; int i; }; static unsigned myfn(const BYTE* ptr, void* user) { struct myfncb* m = user; m->hlpfile->Context[m->i].lHash = GET_UINT(ptr, 0); m->hlpfile->Context[m->i].offset = GET_UINT(ptr, 4); m->i++; return 8; } /*********************************************************************** * * HLPFILE_GetContext */ static BOOL HLPFILE_GetContext(HLPFILE *hlpfile) { BYTE *cbuf, *cend; struct myfncb m; unsigned clen; if (!HLPFILE_FindSubFile("|CONTEXT", &cbuf, &cend)) {WINE_WARN("context0\n"); return FALSE;} clen = GET_UINT(cbuf, 0x2b); hlpfile->Context = HeapAlloc(GetProcessHeap(), 0, clen * sizeof(HLPFILE_CONTEXT)); if (!hlpfile->Context) return FALSE; hlpfile->wContextLen = clen; m.hlpfile = hlpfile; m.i = 0; HLPFILE_EnumBTreeLeaves(cbuf, cend, myfn, &m); 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.mf.hMetaFile); 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->lpszTitle); HeapFree(GetProcessHeap(), 0, hlpfile->lpszCopyright); HeapFree(GetProcessHeap(), 0, hlpfile); }