Update DRI drivers to current DRI CVS and make them work.
This commit is contained in:
Jon Smirl
862
src/mesa/drivers/dri/common/xmlconfig.c
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862
src/mesa/drivers/dri/common/xmlconfig.c
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@@ -0,0 +1,862 @@
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/*
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* XML DRI client-side driver configuration
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* Copyright (C) 2003 Felix Kuehling
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* FELIX KUEHLING, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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/**
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* \file xmlconfig.c
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* \brief Driver-independent client-side part of the XML configuration
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* \author Felix Kuehling
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*/
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#include "glheader.h"
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#include <string.h>
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#include <assert.h>
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#include <expat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include "imports.h"
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#include "dri_util.h"
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#include "xmlconfig.h"
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/*
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* OS dependent ways of getting the name of the running program
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*/
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#if (defined(__unix__) || defined(unix)) && !defined(USG)
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#include <sys/param.h>
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#endif
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#undef GET_PROGRAM_NAME
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#if defined(__GNU_LIBRARY__) || defined(__GLIBC__)
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# define GET_PROGRAM_NAME() program_invocation_short_name
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#elif defined(__FreeBSD__) && (__FreeBSD__ >= 2)
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# include <osreldate.h>
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# if (__FreeBSD_version >= 440000)
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# include <stdlib.h>
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# define GET_PROGRAM_NAME() getprogname()
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# endif
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#elif defined(__NetBSD__) && defined(__NetBSD_Version) && (__NetBSD_Version >= 106000100)
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# include <stdlib.h>
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# define GET_PROGRAM_NAME() getprogname()
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#endif
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#if !defined(GET_PROGRAM_NAME)
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# if defined(OpenBSD) || defined(NetBSD)
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/* This is a hack. It's said to work on OpenBSD, NetBSD and GNU. It's
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* used as a last resort, if there is no documented facility available. */
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static const char *__getProgramName () {
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extern const char *__progname;
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return progname;
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}
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# define GET_PROGRAM_NAME() __getProgramName()
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# else
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# define GET_PROGRAM_NAME() ""
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# warning "Per application configuration won't with your OS version work."
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# endif
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#endif
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/** \brief Find an option in an option cache with the name as key */
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static GLuint findOption (const driOptionCache *cache, const char *name) {
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GLuint len = strlen (name);
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GLuint size = 1 << cache->tableSize, mask = size - 1;
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GLuint hash = 0;
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GLuint i, shift;
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/* compute a hash from the variable length name */
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for (i = 0, shift = 0; i < len; ++i, shift = (shift+8) & 31)
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hash += (GLuint)name[i] << shift;
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hash *= hash;
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hash = (hash >> (16-cache->tableSize/2)) & mask;
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/* this is just the starting point of the linear search for the option */
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for (i = 0; i < size; ++i, hash = (hash+1) & mask) {
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/* if we hit an empty entry then the option is not defined (yet) */
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if (cache->info[hash].name == 0)
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break;
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else if (!strcmp (name, cache->info[hash].name))
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break;
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}
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/* this assertion fails if the hash table is full */
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assert (i < size);
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return hash;
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}
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/** \brief Count the real number of options in an option cache */
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static GLuint countOptions (const driOptionCache *cache) {
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GLuint size = 1 << cache->tableSize;
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GLuint i, count = 0;
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for (i = 0; i < size; ++i)
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if (cache->info[i].name)
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count++;
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return count;
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}
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/** \brief Like strdup but using MALLOC and with error checking. */
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#define XSTRDUP(dest,source) do { \
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GLuint len = strlen (source); \
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if (!(dest = MALLOC (len+1))) { \
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fprintf (stderr, "%s: %d: out of memory.\n", __FILE__, __LINE__); \
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abort(); \
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} \
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memcpy (dest, source, len+1); \
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} while (0)
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static int compare (const void *a, const void *b) {
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return strcmp (*(char *const*)a, *(char *const*)b);
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}
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/** \brief Binary search in a string array. */
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static GLuint bsearchStr (const XML_Char *name,
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const XML_Char *elems[], GLuint count) {
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const XML_Char **found;
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found = bsearch (&name, elems, count, sizeof (XML_Char *), compare);
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if (found)
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return found - elems;
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else
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return count;
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}
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/** \brief Parse a value of a given type. */
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static GLboolean parseValue (driOptionValue *v, driOptionType type,
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const XML_Char *string) {
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const XML_Char *tail;
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/* skip leading white-space */
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string += strspn (string, " \f\n\r\t\v");
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switch (type) {
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case DRI_BOOL:
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if (!strcmp (string, "false")) {
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v->_bool = GL_FALSE;
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tail = string + 5;
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} else if (!strcmp (string, "true")) {
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v->_bool = GL_TRUE;
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tail = string + 4;
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}
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else
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return GL_FALSE;
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break;
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case DRI_ENUM: /* enum is just a special integer */
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case DRI_INT:
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v->_int = strtol (string, (char **)&tail, 0);
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break;
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case DRI_FLOAT:
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v->_float = strtod (string, (char **)&tail);
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break;
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}
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if (tail == string)
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return GL_FALSE; /* empty string (or containing only white-space) */
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/* skip trailing white space */
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if (*tail)
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tail += strspn (tail, " \f\n\r\t\v");
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if (*tail)
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return GL_FALSE; /* something left over that is not part of value */
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return GL_TRUE;
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}
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/** \brief Parse a list of ranges of type info->type. */
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static GLboolean parseRanges (driOptionInfo *info, const XML_Char *string) {
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XML_Char *cp, *range;
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GLuint nRanges, i;
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driOptionRange *ranges;
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XSTRDUP (cp, string);
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/* pass 1: determine the number of ranges (number of commas + 1) */
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range = cp;
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for (nRanges = 1; *range; ++range)
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if (*range == ',')
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++nRanges;
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if ((ranges = MALLOC (nRanges*sizeof(driOptionRange))) == NULL) {
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fprintf (stderr, "%s: %d: out of memory.\n", __FILE__, __LINE__);
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abort();
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}
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/* pass 2: parse all ranges into preallocated array */
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range = cp;
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for (i = 0; i < nRanges; ++i) {
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XML_Char *end, *sep;
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assert (range);
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end = strchr (range, ',');
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if (end)
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*end = '\0';
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sep = strchr (range, ':');
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if (sep) { /* non-empty interval */
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*sep = '\0';
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if (!parseValue (&ranges[i].start, info->type, range) ||
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!parseValue (&ranges[i].end, info->type, sep+1))
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break;
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if (info->type == DRI_INT &&
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ranges[i].start._int > ranges[i].end._int)
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break;
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if (info->type == DRI_FLOAT &&
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ranges[i].start._float > ranges[i].end._float)
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break;
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} else { /* empty interval */
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if (!parseValue (&ranges[i].start, info->type, range))
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break;
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ranges[i].end = ranges[i].start;
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}
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if (end)
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range = end+1;
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else
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range = NULL;
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}
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FREE (cp);
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if (i < nRanges) {
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FREE (ranges);
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return GL_FALSE;
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} else
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assert (range == NULL);
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info->nRanges = nRanges;
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info->ranges = ranges;
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return GL_TRUE;
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}
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/** \brief Check if a value is in one of info->ranges. */
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static GLboolean checkValue (const driOptionValue *v, const driOptionInfo *info) {
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GLuint i;
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assert (info->type != DRI_BOOL); /* should be caught by the parser */
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if (info->nRanges == 0)
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return GL_TRUE;
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switch (info->type) {
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case DRI_ENUM: /* enum is just a special integer */
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case DRI_INT:
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for (i = 0; i < info->nRanges; ++i)
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if (v->_int >= info->ranges[i].start._int &&
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v->_int <= info->ranges[i].end._int)
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return GL_TRUE;
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break;
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case DRI_FLOAT:
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for (i = 0; i < info->nRanges; ++i)
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if (v->_float >= info->ranges[i].start._float &&
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v->_float <= info->ranges[i].end._float)
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return GL_TRUE;
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break;
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default:
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assert (0); /* should never happen */
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}
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return GL_FALSE;
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}
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/** \brief Output a warning message. */
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#define XML_WARNING1(msg) do {\
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__driUtilMessage ("Warning in %s line %d, column %d: "msg, data->name, \
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XML_GetCurrentLineNumber(data->parser), \
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XML_GetCurrentColumnNumber(data->parser)); \
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} while (0)
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#define XML_WARNING(msg,args...) do { \
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__driUtilMessage ("Warning in %s line %d, column %d: "msg, data->name, \
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XML_GetCurrentLineNumber(data->parser), \
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XML_GetCurrentColumnNumber(data->parser), \
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args); \
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} while (0)
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/** \brief Output an error message. */
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#define XML_ERROR1(msg) do { \
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__driUtilMessage ("Error in %s line %d, column %d: "msg, data->name, \
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XML_GetCurrentLineNumber(data->parser), \
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XML_GetCurrentColumnNumber(data->parser)); \
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} while (0)
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#define XML_ERROR(msg,args...) do { \
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__driUtilMessage ("Error in %s line %d, column %d: "msg, data->name, \
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XML_GetCurrentLineNumber(data->parser), \
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XML_GetCurrentColumnNumber(data->parser), \
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args); \
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} while (0)
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/** \brief Output a fatal error message and abort. */
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#define XML_FATAL1(msg) do { \
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fprintf (stderr, "Fatal error in %s line %d, column %d: "msg"\n", \
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data->name, \
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XML_GetCurrentLineNumber(data->parser), \
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XML_GetCurrentColumnNumber(data->parser)); \
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abort();\
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} while (0)
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#define XML_FATAL(msg,args...) do { \
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fprintf (stderr, "Fatal error in %s line %d, column %d: "msg"\n", \
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data->name, \
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XML_GetCurrentLineNumber(data->parser), \
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XML_GetCurrentColumnNumber(data->parser), \
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args); \
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abort();\
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} while (0)
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/** \brief Parser context for __driConfigOptions. */
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struct OptInfoData {
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const char *name;
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XML_Parser parser;
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driOptionCache *cache;
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GLboolean inDriInfo;
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GLboolean inSection;
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GLboolean inDesc;
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GLboolean inOption;
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GLboolean inEnum;
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int curOption;
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};
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/** \brief Elements in __driConfigOptions. */
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enum OptInfoElem {
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OI_DESCRIPTION = 0, OI_DRIINFO, OI_ENUM, OI_OPTION, OI_SECTION, OI_COUNT
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};
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static const XML_Char *OptInfoElems[] = {
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"description", "driinfo", "enum", "option", "section"
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};
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/** \brief Parse attributes of an enum element.
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*
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* We're not actually interested in the data. Just make sure this is ok
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* for external configuration tools.
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*/
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static void parseEnumAttr (struct OptInfoData *data, const XML_Char **attr) {
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GLuint i;
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const XML_Char *value = NULL, *text = NULL;
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driOptionValue v;
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GLuint opt = data->curOption;
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for (i = 0; attr[i]; i += 2) {
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if (!strcmp (attr[i], "value")) value = attr[i+1];
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else if (!strcmp (attr[i], "text")) text = attr[i+1];
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else XML_FATAL("illegal enum attribute: %s.", attr[i]);
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}
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if (!value) XML_FATAL1 ("value attribute missing in enum.");
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if (!text) XML_FATAL1 ("text attribute missing in enum.");
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if (!parseValue (&v, data->cache->info[opt].type, value))
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XML_FATAL ("illegal enum value: %s.", value);
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if (!checkValue (&v, &data->cache->info[opt]))
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XML_FATAL ("enum value out of valid range: %s.", value);
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}
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/** \brief Parse attributes of a description element.
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*
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* We're not actually interested in the data. Just make sure this is ok
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* for external configuration tools.
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*/
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static void parseDescAttr (struct OptInfoData *data, const XML_Char **attr) {
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GLuint i;
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const XML_Char *lang = NULL, *text = NULL;
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for (i = 0; attr[i]; i += 2) {
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if (!strcmp (attr[i], "lang")) lang = attr[i+1];
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else if (!strcmp (attr[i], "text")) text = attr[i+1];
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else XML_FATAL("illegal description attribute: %s.", attr[i]);
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}
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if (!lang) XML_FATAL1 ("lang attribute missing in description.");
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if (!text) XML_FATAL1 ("text attribute missing in description.");
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}
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/** \brief Parse attributes of an option element. */
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static void parseOptInfoAttr (struct OptInfoData *data, const XML_Char **attr) {
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enum OptAttr {OA_DEFAULT = 0, OA_NAME, OA_TYPE, OA_VALID, OA_COUNT};
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static const XML_Char *optAttr[] = {"default", "name", "type", "valid"};
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const XML_Char *attrVal[OA_COUNT] = {NULL, NULL, NULL, NULL};
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const char *defaultVal;
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driOptionCache *cache = data->cache;
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GLuint opt, i;
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for (i = 0; attr[i]; i += 2) {
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GLuint attrName = bsearchStr (attr[i], optAttr, OA_COUNT);
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if (attrName >= OA_COUNT)
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XML_FATAL ("illegal option attribute: %s", attr[i]);
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attrVal[attrName] = attr[i+1];
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}
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if (!attrVal[OA_NAME]) XML_FATAL1 ("name attribute missing in option.");
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if (!attrVal[OA_TYPE]) XML_FATAL1 ("type attribute missing in option.");
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if (!attrVal[OA_DEFAULT]) XML_FATAL1 ("default attribute missing in option.");
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opt = findOption (cache, attrVal[OA_NAME]);
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if (cache->info[opt].name)
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XML_FATAL ("option %s redefined.", attrVal[OA_NAME]);
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data->curOption = opt;
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XSTRDUP (cache->info[opt].name, attrVal[OA_NAME]);
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if (!strcmp (attrVal[OA_TYPE], "bool"))
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cache->info[opt].type = DRI_BOOL;
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else if (!strcmp (attrVal[OA_TYPE], "enum"))
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cache->info[opt].type = DRI_ENUM;
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else if (!strcmp (attrVal[OA_TYPE], "int"))
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cache->info[opt].type = DRI_INT;
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else if (!strcmp (attrVal[OA_TYPE], "float"))
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cache->info[opt].type = DRI_FLOAT;
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else
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XML_FATAL ("illegal type in option: %s.", attrVal[OA_TYPE]);
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defaultVal = getenv (cache->info[opt].name);
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if (defaultVal != NULL) {
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/* don't use XML_WARNING, we want the user to see this! */
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fprintf (stderr,
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"ATTENTION: default value of option %s overridden by environment.\n",
|
||||
cache->info[opt].name);
|
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} else
|
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defaultVal = attrVal[OA_DEFAULT];
|
||||
if (!parseValue (&cache->values[opt], cache->info[opt].type, defaultVal))
|
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XML_FATAL ("illegal default value: %s.", defaultVal);
|
||||
|
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if (attrVal[OA_VALID]) {
|
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if (cache->info[opt].type == DRI_BOOL)
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XML_FATAL1 ("boolean option with valid attribute.");
|
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if (!parseRanges (&cache->info[opt], attrVal[OA_VALID]))
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XML_FATAL ("illegal valid attribute: %s.", attrVal[OA_VALID]);
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if (!checkValue (&cache->values[opt], &cache->info[opt]))
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XML_FATAL ("default value out of valid range '%s': %s.",
|
||||
attrVal[OA_VALID], defaultVal);
|
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} else if (cache->info[opt].type == DRI_ENUM) {
|
||||
XML_FATAL1 ("valid attribute missing in option (mandatory for enums).");
|
||||
} else {
|
||||
cache->info[opt].nRanges = 0;
|
||||
cache->info[opt].ranges = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
/** \brief Handler for start element events. */
|
||||
static void optInfoStartElem (void *userData, const XML_Char *name,
|
||||
const XML_Char **attr) {
|
||||
struct OptInfoData *data = (struct OptInfoData *)userData;
|
||||
enum OptInfoElem elem = bsearchStr (name, OptInfoElems, OI_COUNT);
|
||||
switch (elem) {
|
||||
case OI_DRIINFO:
|
||||
if (data->inDriInfo)
|
||||
XML_FATAL1 ("nested <driinfo> elements.");
|
||||
if (attr[0])
|
||||
XML_FATAL1 ("attributes specified on <driinfo> element.");
|
||||
data->inDriInfo = GL_TRUE;
|
||||
break;
|
||||
case OI_SECTION:
|
||||
if (!data->inDriInfo)
|
||||
XML_FATAL1 ("<section> must be inside <driinfo>.");
|
||||
if (data->inSection)
|
||||
XML_FATAL1 ("nested <section> elements.");
|
||||
if (attr[0])
|
||||
XML_FATAL1 ("attributes specified on <section> element.");
|
||||
data->inSection = GL_TRUE;
|
||||
break;
|
||||
case OI_DESCRIPTION:
|
||||
if (!data->inSection && !data->inOption)
|
||||
XML_FATAL1 ("<description> must be inside <description> or <option.");
|
||||
if (data->inDesc)
|
||||
XML_FATAL1 ("nested <description> elements.");
|
||||
data->inDesc = GL_TRUE;
|
||||
parseDescAttr (data, attr);
|
||||
break;
|
||||
case OI_OPTION:
|
||||
if (!data->inSection)
|
||||
XML_FATAL1 ("<option> must be inside <section>.");
|
||||
if (data->inDesc)
|
||||
XML_FATAL1 ("<option> nested in <description> element.");
|
||||
if (data->inOption)
|
||||
XML_FATAL1 ("nested <option> elements.");
|
||||
data->inOption = GL_TRUE;
|
||||
parseOptInfoAttr (data, attr);
|
||||
break;
|
||||
case OI_ENUM:
|
||||
if (!(data->inOption && data->inDesc))
|
||||
XML_FATAL1 ("<enum> must be inside <option> and <description>.");
|
||||
if (data->inEnum)
|
||||
XML_FATAL1 ("nested <enum> elements.");
|
||||
data->inEnum = GL_TRUE;
|
||||
parseEnumAttr (data, attr);
|
||||
break;
|
||||
default:
|
||||
XML_FATAL ("unknown element: %s.", name);
|
||||
}
|
||||
}
|
||||
|
||||
/** \brief Handler for end element events. */
|
||||
static void optInfoEndElem (void *userData, const XML_Char *name) {
|
||||
struct OptInfoData *data = (struct OptInfoData *)userData;
|
||||
enum OptInfoElem elem = bsearchStr (name, OptInfoElems, OI_COUNT);
|
||||
switch (elem) {
|
||||
case OI_DRIINFO:
|
||||
data->inDriInfo = GL_FALSE;
|
||||
break;
|
||||
case OI_SECTION:
|
||||
data->inSection = GL_FALSE;
|
||||
break;
|
||||
case OI_DESCRIPTION:
|
||||
data->inDesc = GL_FALSE;
|
||||
break;
|
||||
case OI_OPTION:
|
||||
data->inOption = GL_FALSE;
|
||||
break;
|
||||
case OI_ENUM:
|
||||
data->inEnum = GL_FALSE;
|
||||
break;
|
||||
default:
|
||||
assert (0); /* should have been caught by StartElem */
|
||||
}
|
||||
}
|
||||
|
||||
void driParseOptionInfo (driOptionCache *info) {
|
||||
XML_Parser p;
|
||||
int status;
|
||||
struct OptInfoData userData;
|
||||
struct OptInfoData *data = &userData;
|
||||
GLuint nOptions;
|
||||
|
||||
/* determine hash table size and allocate memory */
|
||||
GLuint size, log2size;
|
||||
for (size = 1, log2size = 0; size < __driNConfigOptions*3/2;
|
||||
size <<= 1, ++log2size);
|
||||
info->tableSize = log2size;
|
||||
info->info = CALLOC (size * sizeof (driOptionInfo));
|
||||
info->values = CALLOC (size * sizeof (driOptionInfo));
|
||||
if (info->info == NULL || info->values == NULL) {
|
||||
fprintf (stderr, "%s: %d: out of memory.\n", __FILE__, __LINE__);
|
||||
abort();
|
||||
}
|
||||
|
||||
p = XML_ParserCreate ("UTF-8"); /* always UTF-8 */
|
||||
XML_SetElementHandler (p, optInfoStartElem, optInfoEndElem);
|
||||
XML_SetUserData (p, data);
|
||||
|
||||
userData.name = "__driConfigOptions";
|
||||
userData.parser = p;
|
||||
userData.cache = info;
|
||||
userData.inDriInfo = GL_FALSE;
|
||||
userData.inSection = GL_FALSE;
|
||||
userData.inDesc = GL_FALSE;
|
||||
userData.inOption = GL_FALSE;
|
||||
userData.inEnum = GL_FALSE;
|
||||
userData.curOption = -1;
|
||||
|
||||
status = XML_Parse (p, __driConfigOptions, strlen (__driConfigOptions), 1);
|
||||
if (!status)
|
||||
XML_FATAL ("%s.", XML_ErrorString(XML_GetErrorCode(p)));
|
||||
|
||||
XML_ParserFree (p);
|
||||
|
||||
/* Check if the actual number of options matches __driNConfigOptions.
|
||||
* A mismatch is not fatal (a hash table overflow would be) but we
|
||||
* want the driver developer's attention anyway. */
|
||||
nOptions = countOptions (info);
|
||||
if (nOptions != __driNConfigOptions) {
|
||||
fprintf (stderr,
|
||||
"Error: __driNConfigOptions (%u) does not match the actual number of options in\n"
|
||||
" __driConfigOptions (%u).\n",
|
||||
__driNConfigOptions, nOptions);
|
||||
}
|
||||
}
|
||||
|
||||
/** \brief Parser context for configuration files. */
|
||||
struct OptConfData {
|
||||
const char *name;
|
||||
XML_Parser parser;
|
||||
driOptionCache *cache;
|
||||
GLint screenNum;
|
||||
const char *driverName, *execName;
|
||||
GLuint ignoringDevice;
|
||||
GLuint ignoringApp;
|
||||
GLuint inDriConf;
|
||||
GLuint inDevice;
|
||||
GLuint inApp;
|
||||
GLuint inOption;
|
||||
};
|
||||
|
||||
/** \brief Elements in configuration files. */
|
||||
enum OptConfElem {
|
||||
OC_APPLICATION = 0, OC_DEVICE, OC_DRICONF, OC_OPTION, OC_COUNT
|
||||
};
|
||||
static const XML_Char *OptConfElems[] = {
|
||||
"application", "device", "driconf", "option"
|
||||
};
|
||||
|
||||
/** \brief Parse attributes of a device element. */
|
||||
static void parseDeviceAttr (struct OptConfData *data, const XML_Char **attr) {
|
||||
GLuint i;
|
||||
const XML_Char *driver = NULL, *screen = NULL;
|
||||
for (i = 0; attr[i]; i += 2) {
|
||||
if (!strcmp (attr[i], "driver")) driver = attr[i+1];
|
||||
else if (!strcmp (attr[i], "screen")) screen = attr[i+1];
|
||||
else XML_WARNING("unkown device attribute: %s.", attr[i]);
|
||||
}
|
||||
if (driver && strcmp (driver, data->driverName))
|
||||
data->ignoringDevice = data->inDevice;
|
||||
else if (screen) {
|
||||
driOptionValue screenNum;
|
||||
if (!parseValue (&screenNum, DRI_INT, screen))
|
||||
XML_WARNING("illegal screen number: %s.", screen);
|
||||
else if (screenNum._int != data->screenNum)
|
||||
data->ignoringDevice = data->inDevice;
|
||||
}
|
||||
}
|
||||
|
||||
/** \brief Parse attributes of an application element. */
|
||||
static void parseAppAttr (struct OptConfData *data, const XML_Char **attr) {
|
||||
GLuint i;
|
||||
const XML_Char *name = NULL, *exec = NULL;
|
||||
for (i = 0; attr[i]; i += 2) {
|
||||
if (!strcmp (attr[i], "name")) name = attr[i+1];
|
||||
else if (!strcmp (attr[i], "executable")) exec = attr[i+1];
|
||||
else XML_WARNING("unkown application attribute: %s.", attr[i]);
|
||||
}
|
||||
if (exec && strcmp (exec, data->execName))
|
||||
data->ignoringApp = data->inApp;
|
||||
}
|
||||
|
||||
/** \brief Parse attributes of an option element. */
|
||||
static void parseOptConfAttr (struct OptConfData *data, const XML_Char **attr) {
|
||||
GLuint i;
|
||||
const XML_Char *name = NULL, *value = NULL;
|
||||
for (i = 0; attr[i]; i += 2) {
|
||||
if (!strcmp (attr[i], "name")) name = attr[i+1];
|
||||
else if (!strcmp (attr[i], "value")) value = attr[i+1];
|
||||
else XML_WARNING("unkown option attribute: %s.", attr[i]);
|
||||
}
|
||||
if (!name) XML_WARNING1 ("name attribute missing in option.");
|
||||
if (!value) XML_WARNING1 ("value attribute missing in option.");
|
||||
if (name && value) {
|
||||
driOptionCache *cache = data->cache;
|
||||
GLuint opt = findOption (cache, name);
|
||||
if (cache->info[opt].name == NULL)
|
||||
XML_WARNING ("undefined option: %s.", name);
|
||||
else if (getenv (cache->info[opt].name))
|
||||
/* don't use XML_WARNING, we want the user to see this! */
|
||||
fprintf (stderr, "ATTENTION: option value of option %s ignored.\n",
|
||||
cache->info[opt].name);
|
||||
else if (!parseValue (&cache->values[opt], cache->info[opt].type, value))
|
||||
XML_WARNING ("illegal option value: %s.", value);
|
||||
}
|
||||
}
|
||||
|
||||
/** \brief Handler for start element events. */
|
||||
static void optConfStartElem (void *userData, const XML_Char *name,
|
||||
const XML_Char **attr) {
|
||||
struct OptConfData *data = (struct OptConfData *)userData;
|
||||
enum OptConfElem elem = bsearchStr (name, OptConfElems, OC_COUNT);
|
||||
switch (elem) {
|
||||
case OC_DRICONF:
|
||||
if (data->inDriConf)
|
||||
XML_WARNING1 ("nested <driconf> elements.");
|
||||
if (attr[0])
|
||||
XML_WARNING1 ("attributes specified on <driconf> element.");
|
||||
data->inDriConf++;
|
||||
break;
|
||||
case OC_DEVICE:
|
||||
if (!data->inDriConf)
|
||||
XML_WARNING1 ("<device> should be inside <driconf>.");
|
||||
if (data->inDevice)
|
||||
XML_WARNING1 ("nested <device> elements.");
|
||||
data->inDevice++;
|
||||
if (!data->ignoringDevice && !data->ignoringApp)
|
||||
parseDeviceAttr (data, attr);
|
||||
break;
|
||||
case OC_APPLICATION:
|
||||
if (!data->inDevice)
|
||||
XML_WARNING1 ("<application> should be inside <device>.");
|
||||
if (data->inApp)
|
||||
XML_WARNING1 ("nested <application> elements.");
|
||||
data->inApp++;
|
||||
if (!data->ignoringDevice && !data->ignoringApp)
|
||||
parseAppAttr (data, attr);
|
||||
break;
|
||||
case OC_OPTION:
|
||||
if (!data->inApp)
|
||||
XML_WARNING1 ("<option> should be inside <application>.");
|
||||
if (data->inOption)
|
||||
XML_WARNING1 ("nested <option> elements.");
|
||||
data->inOption++;
|
||||
if (!data->ignoringDevice && !data->ignoringApp)
|
||||
parseOptConfAttr (data, attr);
|
||||
break;
|
||||
default:
|
||||
XML_WARNING ("unknown element: %s.", name);
|
||||
}
|
||||
}
|
||||
|
||||
/** \brief Handler for end element events. */
|
||||
static void optConfEndElem (void *userData, const XML_Char *name) {
|
||||
struct OptConfData *data = (struct OptConfData *)userData;
|
||||
enum OptConfElem elem = bsearchStr (name, OptConfElems, OC_COUNT);
|
||||
switch (elem) {
|
||||
case OC_DRICONF:
|
||||
data->inDriConf--;
|
||||
break;
|
||||
case OC_DEVICE:
|
||||
if (data->inDevice-- == data->ignoringDevice)
|
||||
data->ignoringDevice = 0;
|
||||
break;
|
||||
case OC_APPLICATION:
|
||||
if (data->inApp-- == data->ignoringApp)
|
||||
data->ignoringApp = 0;
|
||||
break;
|
||||
case OC_OPTION:
|
||||
data->inOption--;
|
||||
break;
|
||||
default:
|
||||
/* unknown element, warning was produced on start tag */;
|
||||
}
|
||||
}
|
||||
|
||||
/** \brief Initialize an option cache based on info */
|
||||
static void initOptionCache (driOptionCache *cache, driOptionCache *info) {
|
||||
cache->info = info->info;
|
||||
cache->tableSize = info->tableSize;
|
||||
cache->values = MALLOC ((1<<info->tableSize) * sizeof (driOptionValue));
|
||||
if (cache->values == NULL) {
|
||||
fprintf (stderr, "%s: %d: out of memory.\n", __FILE__, __LINE__);
|
||||
abort();
|
||||
}
|
||||
memcpy (cache->values, info->values,
|
||||
(1<<info->tableSize) * sizeof (driOptionValue));
|
||||
}
|
||||
|
||||
/** \brief Parse the named configuration file */
|
||||
static void parseOneConfigFile (XML_Parser p) {
|
||||
#define BUF_SIZE 0x1000
|
||||
struct OptConfData *data = (struct OptConfData *)XML_GetUserData (p);
|
||||
int status;
|
||||
int fd;
|
||||
|
||||
if ((fd = open (data->name, O_RDONLY)) == -1) {
|
||||
__driUtilMessage ("Can't open configuration file %s: %s.",
|
||||
data->name, strerror (errno));
|
||||
return;
|
||||
}
|
||||
|
||||
while (1) {
|
||||
int bytesRead;
|
||||
void *buffer = XML_GetBuffer (p, BUF_SIZE);
|
||||
if (!buffer) {
|
||||
__driUtilMessage ("Can't allocate parser buffer.");
|
||||
break;
|
||||
}
|
||||
bytesRead = read (fd, buffer, BUF_SIZE);
|
||||
if (bytesRead == -1) {
|
||||
__driUtilMessage ("Error reading from configuration file %s: %s.",
|
||||
data->name, strerror (errno));
|
||||
break;
|
||||
}
|
||||
status = XML_ParseBuffer (p, bytesRead, bytesRead == 0);
|
||||
if (!status) {
|
||||
XML_ERROR ("%s.", XML_ErrorString(XML_GetErrorCode(p)));
|
||||
break;
|
||||
}
|
||||
if (bytesRead == 0)
|
||||
break;
|
||||
}
|
||||
|
||||
close (fd);
|
||||
#undef BUF_SIZE
|
||||
}
|
||||
|
||||
void driParseConfigFiles (driOptionCache *cache, driOptionCache *info,
|
||||
GLint screenNum, const char *driverName) {
|
||||
char *filenames[2] = {"/etc/drirc", NULL};
|
||||
char *home;
|
||||
GLuint i;
|
||||
struct OptConfData userData;
|
||||
|
||||
initOptionCache (cache, info);
|
||||
|
||||
userData.cache = cache;
|
||||
userData.screenNum = screenNum;
|
||||
userData.driverName = driverName;
|
||||
#ifndef _SOLO
|
||||
userData.execName = GET_PROGRAM_NAME();
|
||||
#else
|
||||
userData.execName = "Solo";
|
||||
#endif
|
||||
|
||||
if ((home = getenv ("HOME"))) {
|
||||
GLuint len = strlen (home);
|
||||
filenames[1] = MALLOC (len + 7+1);
|
||||
if (filenames[1] == NULL)
|
||||
__driUtilMessage ("Can't allocate memory for %s/.drirc.", home);
|
||||
else {
|
||||
memcpy (filenames[1], home, len);
|
||||
memcpy (filenames[1] + len, "/.drirc", 7+1);
|
||||
}
|
||||
}
|
||||
|
||||
for (i = 0; i < 2; ++i) {
|
||||
XML_Parser p;
|
||||
if (filenames[i] == NULL)
|
||||
continue;
|
||||
|
||||
p = XML_ParserCreate (NULL); /* use encoding specified by file */
|
||||
XML_SetElementHandler (p, optConfStartElem, optConfEndElem);
|
||||
XML_SetUserData (p, &userData);
|
||||
userData.parser = p;
|
||||
userData.name = filenames[i];
|
||||
userData.ignoringDevice = 0;
|
||||
userData.ignoringApp = 0;
|
||||
userData.inDriConf = 0;
|
||||
userData.inDevice = 0;
|
||||
userData.inApp = 0;
|
||||
userData.inOption = 0;
|
||||
|
||||
parseOneConfigFile (p);
|
||||
XML_ParserFree (p);
|
||||
}
|
||||
|
||||
if (filenames[1])
|
||||
FREE (filenames[1]);
|
||||
}
|
||||
|
||||
void driDestroyOptionInfo (driOptionCache *info) {
|
||||
driDestroyOptionCache (info);
|
||||
if (info->info) {
|
||||
GLuint i, size = 1 << info->tableSize;
|
||||
for (i = 0; i < size; ++i) {
|
||||
if (info->info[i].name) {
|
||||
FREE (info->info[i].name);
|
||||
if (info->info[i].ranges)
|
||||
FREE (info->info[i].ranges);
|
||||
}
|
||||
}
|
||||
FREE (info->info);
|
||||
}
|
||||
}
|
||||
|
||||
void driDestroyOptionCache (driOptionCache *cache) {
|
||||
if (cache->values)
|
||||
FREE (cache->values);
|
||||
}
|
||||
|
||||
GLboolean driCheckOption (const driOptionCache *cache, const char *name,
|
||||
driOptionType type) {
|
||||
GLuint i = findOption (cache, name);
|
||||
return cache->info[i].name != NULL && cache->info[i].type == type;
|
||||
}
|
||||
|
||||
GLboolean driQueryOptionb (const driOptionCache *cache, const char *name) {
|
||||
GLuint i = findOption (cache, name);
|
||||
/* make sure the option is defined and has the correct type */
|
||||
assert (cache->info[i].name != NULL);
|
||||
assert (cache->info[i].type == DRI_BOOL);
|
||||
return cache->values[i]._bool;
|
||||
}
|
||||
|
||||
GLint driQueryOptioni (const driOptionCache *cache, const char *name) {
|
||||
GLuint i = findOption (cache, name);
|
||||
/* make sure the option is defined and has the correct type */
|
||||
assert (cache->info[i].name != NULL);
|
||||
assert (cache->info[i].type == DRI_INT || cache->info[i].type == DRI_ENUM);
|
||||
return cache->values[i]._int;
|
||||
}
|
||||
|
||||
GLfloat driQueryOptionf (const driOptionCache *cache, const char *name) {
|
||||
GLuint i = findOption (cache, name);
|
||||
/* make sure the option is defined and has the correct type */
|
||||
assert (cache->info[i].name != NULL);
|
||||
assert (cache->info[i].type == DRI_FLOAT);
|
||||
return cache->values[i]._float;
|
||||
}
|
||||
Reference in New Issue
Block a user