/* * font data query */ /* Copyright 1990, 1991, 1998 The Open Group Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of The Open Group shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from The Open Group. * Copyright 1990, 1991 Network Computing Devices; * Portions Copyright 1987 by Digital Equipment Corporation * * Permission to use, copy, modify, distribute, and sell this software and * its documentation for any purpose is hereby granted without fee, provided * that the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the names of Network Computing Devices, or Digital * not be used in advertising or publicity pertaining to distribution * of the software without specific, written prior permission. * * NETWORK COMPUTING DEVICES, AND DIGITAL DISCLAIM ALL WARRANTIES WITH * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES, * OR DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF * THIS SOFTWARE. */ #include "config.h" #include #include #include #include #include "clientstr.h" #include "difsfnst.h" #include #include "closestr.h" #include "globals.h" #include "difs.h" #include "misc.h" #include "dispatch.h" #include #include #ifdef HAVE_STDINT_H #include #endif #include #ifndef SIZE_MAX # ifdef ULONG_MAX # define SIZE_MAX ULONG_MAX # else # define SIZE_MAX UINT_MAX # endif #endif int convert_props( FontInfoPtr pinfo, fsPropInfo **props) { int i; int data_len, cur_off; const char *str; pointer ptr, off_ptr, string_base; fsPropOffset local_offset; /* * compute the size of the property data */ data_len = 0; for (i = 0; i < pinfo->nprops; i++) { data_len += strlen(NameForAtom(pinfo->props[i].name)); if (NULL != pinfo->isStringProp && pinfo->isStringProp[i]) data_len += strlen(NameForAtom(pinfo->props[i].value)); } /* * allocate the single chunk that the difs layer requires */ ptr = (pointer) fsalloc(SIZEOF(fsPropInfo) + SIZEOF(fsPropOffset) * pinfo->nprops + data_len); if (!ptr) return AllocError; string_base = (char *)ptr + SIZEOF(fsPropInfo) + SIZEOF(fsPropOffset) * pinfo->nprops; /* * copy in the header */ ((fsPropInfo *)ptr)->num_offsets = pinfo->nprops; ((fsPropInfo *)ptr)->data_len = data_len; /* * compute the offsets and copy the string data */ off_ptr = (char *)ptr + SIZEOF(fsPropInfo); cur_off = 0; for (i = 0; i < pinfo->nprops; i++) { local_offset.name.position = cur_off; str = NameForAtom(pinfo->props[i].name); local_offset.name.length = strlen(str); memmove( (char *)string_base+cur_off, str, local_offset.name.length); cur_off += local_offset.name.length; if (NULL != pinfo->isStringProp && pinfo->isStringProp[i]) { local_offset.value.position = cur_off; str = NameForAtom(pinfo->props[i].value); local_offset.value.length = strlen(str); memmove( (char *)string_base+cur_off, str, local_offset.value.length); cur_off += local_offset.value.length; local_offset.type = PropTypeString; } else { local_offset.value.position = pinfo->props[i].value; local_offset.value.length = 0; /* protocol says must be zero */ local_offset.type = PropTypeSigned; } memmove( off_ptr, &local_offset, SIZEOF(fsPropOffset)); off_ptr = (char *)off_ptr + SIZEOF(fsPropOffset); } assert(off_ptr == string_base); assert(cur_off == data_len); *props = (fsPropInfo *) ptr; return Successful; } /* * does the real work of turning a list of range (or chars) into * a list of ranges */ static fsRange * build_range( Bool type, pointer src, int item_size, int *num, Bool *all, FontInfoPtr pfi) { fsRange *new = (fsRange *) 0, *np; unsigned long src_num; unsigned long i; if (type) { /* range flag is set, deal with data as a list * of char2bs */ char *rp = (char *) src; src_num = *num; if (src_num == 0) { *all = TRUE; return new; } if (src_num >= SIZE_MAX / sizeof(fsRange) * 2 - 1) return NULL; np = new = (fsRange *) fsalloc(sizeof(fsRange) * (src_num + 1) / 2); if (!np) return np; /* Build a new range */ for (i = 1; i < src_num; i += 2) { np->min_char_high = (item_size == 1) ? 0 : *rp++; np->min_char_low = *rp++; np->max_char_high = (item_size == 1) ? 0 : *rp++; np->max_char_low = *rp++; np++; } /* If src_num is odd, we need to determine the final range by examining the fontinfo */ if (i == src_num) { np->min_char_high = (item_size == 1) ? 0 : *rp++; np->min_char_low = *rp++; np->max_char_high = pfi->lastRow; np->max_char_low = pfi->lastCol; np++; } *num = np - new; return new; } else { /* deal with data as a list of characters */ unsigned char *pp = src; src_num = *num; if (src_num >= SIZE_MAX / sizeof(fsRange)) return NULL; np = new = (fsRange *) fsalloc(SIZEOF(fsRange) * src_num); if (!np) return np; /* Build a range, with coalescence, from the list of chars */ for (i = 0; i < src_num; i++) { if (item_size == 1) { np->min_char_low = *pp; np->min_char_high = 0; } else { np->min_char_low = ((fsChar2b *) pp)->low; np->min_char_high = ((fsChar2b *) pp)->high; } np->max_char_high = np->min_char_high; np->max_char_low = np->min_char_low; /* Can we coalesce? */ if (np > new && np->max_char_high == np[-1].max_char_high && np->max_char_low == np[-1].max_char_low + 1) np[-1].max_char_low++; /* Yes */ else np++; /* No */ pp += item_size; } *num = np - new; return new; } } /* * provide backward compatibility with version 1, which had * the bytes of char2b backwards */ static void swap_char2b (fsChar2b *values, int number) { fsChar2b temp; int i; for (i = 0; i < number; i++) { temp.low = ((fsChar2b_version1 *)values)->low; temp.high = ((fsChar2b_version1 *)values)->high; *values++ = temp; } } #define pPtr ((QEclosurePtr) data) static Bool do_query_extents(ClientPtr client, pointer data) { int err; unsigned long num_extents; fsXCharInfo *extents; err = GetExtents (pPtr->client, pPtr->pfont, pPtr->flags, pPtr->nranges, pPtr->range, &num_extents, &extents); if (err == Suspended) { if (!pPtr->slept) { pPtr->pfont->unload_glyphs = NULL; /* Not a safe call for this font */ pPtr->slept = TRUE; ClientSleep(client, do_query_extents, (pointer) pPtr); } return TRUE; } if (err != Successful) { SendErrToClient(pPtr->client, FontToFSError(err), (pointer) 0); } else { unsigned long lendata = SIZEOF(fsXCharInfo) * num_extents; fsQueryXExtents8Reply reply = { .type = FS_Reply, .sequenceNumber = pPtr->client->sequence, .num_extents = num_extents, .length = (SIZEOF(fsQueryXExtents8Reply) + lendata) >> 2 }; if (client->swapped) SwapExtents(extents, num_extents); WriteReplyToClient(pPtr->client, SIZEOF(fsQueryXExtents8Reply), &reply); WriteToClient(pPtr->client, lendata, (char *) extents); fsfree((char *) extents); } if (pPtr->slept) ClientWakeup(pPtr->client); if (pPtr->pfont->unload_glyphs) /* For rasterizers that want to save memory */ (*pPtr->pfont->unload_glyphs)(pPtr->pfont); fsfree(pPtr->range); fsfree(pPtr); return TRUE; } int QueryExtents( ClientPtr client, ClientFontPtr cfp, int item_size, int nranges, Bool range_flag, pointer range_data) { QEclosurePtr c; fsRange *fixed_range; Bool all_glyphs = FALSE; if (item_size == 2 && client->major_version == 1) swap_char2b ((fsChar2b *)range_data, nranges); fixed_range = build_range(range_flag, range_data, item_size, &nranges, &all_glyphs, &cfp->font->info); if (!fixed_range && !all_glyphs) { SendErrToClient(client, FSBadRange, NULL); return FSBadRange; } c = (QEclosurePtr) fsalloc(sizeof(QEclosureRec)); if (!c) return FSBadAlloc; c->client = client; c->slept = FALSE; c->pfont = cfp->font; c->flags = (all_glyphs) ? LoadAll : 0; c->flags |= (item_size == 1) ? EightBitFont : SixteenBitFont; c->nranges = nranges; c->range = fixed_range; (void) do_query_extents(client, (pointer) c); return FSSuccess; } #undef pPtr #define pPtr ((QBclosurePtr) data) static Bool do_query_bitmaps(ClientPtr client, pointer data) { int err; unsigned long num_glyphs; int data_size; fsOffset32 *offsets; pointer glyph_data; int freedata; err = GetBitmaps (pPtr->client, pPtr->pfont, pPtr->format, pPtr->flags, pPtr->nranges, pPtr->range, &data_size, &num_glyphs, &offsets, &glyph_data, &freedata); if (err == Suspended) { if (!pPtr->slept) { pPtr->pfont->unload_glyphs = NULL; /* Not a safe call for this font */ pPtr->slept = TRUE; ClientSleep(client, do_query_bitmaps, (pointer) pPtr); } return TRUE; } if (err != Successful) { SendErrToClient(pPtr->client, FontToFSError(err), (pointer) 0); } else { fsQueryXBitmaps8Reply reply = { .type = FS_Reply, .sequenceNumber = pPtr->client->sequence, .length = (SIZEOF(fsQueryXBitmaps8Reply) + data_size + (SIZEOF(fsOffset32) * num_glyphs) + 3) >> 2, .replies_hint = 0, .num_chars = num_glyphs, .nbytes = data_size }; WriteReplyToClient(pPtr->client, SIZEOF(fsQueryXBitmaps8Reply), &reply); if (client->swapped) SwapLongs((long *)offsets, num_glyphs * 2); WriteToClient(pPtr->client, (num_glyphs * SIZEOF(fsOffset32)), (char *) offsets); WriteToClient(pPtr->client, data_size, (char *) glyph_data); fsfree((char *) offsets); if (freedata) fsfree((char *) glyph_data); } if (pPtr->slept) ClientWakeup(pPtr->client); if (pPtr->pfont->unload_glyphs) /* For rasterizers that want to save memory */ (*pPtr->pfont->unload_glyphs)(pPtr->pfont); fsfree(pPtr->range); fsfree(pPtr); return TRUE; } int QueryBitmaps( ClientPtr client, ClientFontPtr cfp, int item_size, fsBitmapFormat format, int nranges, Bool range_flag, pointer range_data) { QBclosurePtr c; fsRange *fixed_range; Bool all_glyphs = FALSE; if (item_size == 2 && client->major_version == 1) swap_char2b ((fsChar2b *)range_data, nranges); fixed_range = build_range(range_flag, range_data, item_size, &nranges, &all_glyphs, &cfp->font->info); if (!fixed_range && !all_glyphs) { SendErrToClient(client, FSBadRange, NULL); return FSBadRange; } c = (QBclosurePtr) fsalloc(sizeof(QBclosureRec)); if (!c) return FSBadAlloc; c->client = client; c->slept = FALSE; c->pfont = cfp->font; c->flags = (all_glyphs) ? LoadAll : 0; c->nranges = nranges; c->range = fixed_range; c->format = format; (void) do_query_bitmaps(client, (pointer) c); return FSSuccess; }