summaryrefslogtreecommitdiff
path: root/src/gallium/auxiliary/util
diff options
context:
space:
mode:
authorJosé Fonseca <jrfonseca@tungstengraphics.com>2008-03-24 22:30:33 +0000
committerJosé Fonseca <jrfonseca@tungstengraphics.com>2008-03-24 22:31:36 +0000
commite8c6ea4f608296ed976f1597ffd46ac0b42fc84a (patch)
treed7d2047da352769896bc7cc058b055dfef59718f /src/gallium/auxiliary/util
parentdd51365acdd515577ee76850ceda01347ceb27c0 (diff)
gallium: Simple cross platform get-opt system.
Uses getenv on Linux, and a memory mapped text file on Windows. It supports boolean options, flags, and plain strings.
Diffstat (limited to 'src/gallium/auxiliary/util')
-rw-r--r--src/gallium/auxiliary/util/p_debug.c144
1 files changed, 144 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/p_debug.c b/src/gallium/auxiliary/util/p_debug.c
index bd58e0e3a8..351de95c95 100644
--- a/src/gallium/auxiliary/util/p_debug.c
+++ b/src/gallium/auxiliary/util/p_debug.c
@@ -107,6 +107,150 @@ void _debug_break(void)
#endif
}
+
+#ifdef WIN32
+static const char *
+find(const char *start, const char *end, char c)
+{
+ const char *p;
+ for(p = start; !end || p != end; ++p) {
+ if(*p == c)
+ return p;
+ if(*p < 32)
+ break;
+ }
+ return NULL;
+}
+
+static int
+compare(const char *start, const char *end, const char *s)
+{
+ const char *p, *q;
+ for(p = start, q = s; p != end && *q != '\0'; ++p, ++q) {
+ if(*p != *q)
+ return 0;
+ }
+ return p == end && *q == '\0';
+}
+
+static void
+copy(char *dst, const char *start, const char *end, size_t n)
+{
+ const char *p;
+ char *q;
+ for(p = start, q = dst, n = n - 1; p != end && n; ++p, ++q, --n)
+ *q = *p;
+ *q = '\0';
+}
+#endif
+
+
+const char *
+debug_get_option(const char *name, const char *dfault)
+{
+ const char *result;
+#ifdef WIN32
+ ULONG_PTR iFile = 0;
+ const void *pMap = NULL;
+ const char *sol, *eol, *sep;
+ static char output[1024];
+
+ pMap = EngMapFile(L"\\??\\c:\\gallium.cfg", 0, &iFile);
+ if(!pMap)
+ result = dfault;
+ else {
+ sol = (const char *)pMap;
+ while(1) {
+ /* TODO: handle LF line endings */
+ eol = find(sol, NULL, '\r');
+ if(!eol || eol == sol)
+ break;
+ sep = find(sol, eol, '=');
+ if(!sep)
+ break;
+ if(compare(sol, sep, name)) {
+ copy(output, sep + 1, eol, sizeof(output));
+ result = output;
+ break;
+ }
+ sol = eol + 2;
+ }
+ EngUnmapFile(iFile);
+ }
+#else
+
+ result = getenv(name);
+ if(!result)
+ result = dfault;
+#endif
+
+ if(result)
+ debug_printf("%s: %s = %s\n", __FUNCTION__, name, result);
+ else
+ debug_printf("%s: %s = (null)\n", __FUNCTION__, name);
+
+ return result;
+}
+
+boolean
+debug_get_bool_option(const char *name, boolean dfault)
+{
+ const char *str = debug_get_option(name, NULL);
+ boolean result;
+
+ if(str == NULL)
+ result = dfault;
+ else if(!strcmp(str, "no"))
+ result = FALSE;
+ else if(!strcmp(str, "0"))
+ result = FALSE;
+ else if(!strcmp(str, "f"))
+ result = FALSE;
+ else if(!strcmp(str, "false"))
+ result = FALSE;
+ else
+ result = TRUE;
+
+ debug_printf("%s: %s = %s\n", __FUNCTION__, name, result ? "TRUE" : "FALSE");
+
+ return result;
+}
+
+
+long
+debug_get_num_option(const char *name, long dfault)
+{
+ /* FIXME */
+ return dfault;
+}
+
+
+unsigned long
+debug_get_flags_option(const char *name,
+ const struct debug_named_value *flags,
+ unsigned long dfault)
+{
+ unsigned long result;
+ const char *str;
+
+ str = debug_get_option(name, NULL);
+ if(!str)
+ result = dfault;
+ else {
+ result = 0;
+ while( flags->name ) {
+ if (!strcmp(str, "all") || strstr(str, flags->name ))
+ result |= flags->value;
+ ++flags;
+ }
+ }
+
+ debug_printf("%s: %s = 0x%lx\n", __FUNCTION__, name, result);
+
+ return result;
+}
+
+
#if defined(WIN32)
ULONG_PTR debug_config_file = 0;
void *mapped_config_file = 0;