util: Move DRI parse_debug_string() to util

We want to use intel_debug.c in code that doesn't link to dri common.

v2: Remove unnecessary stddef.h include (Topi), use util/debug.h
    in all DRI driver and remove driParseDebugString() (Iago).

Reviewed-by: Topi Pohjolainen <[email protected]>
Signed-off-by: Kristian Høgsberg Kristensen <[email protected]>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/util/debug.c b/src/util/debug.c
new file mode 100644
index 00000000000..3729ce85670
--- /dev/null
+++ b/src/util/debug.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright © 2015 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#include <string.h>
+#include "main/macros.h"
+#include "debug.h"
+
+uint64_t
+parse_debug_string(const char *debug,
+                   const struct debug_control *control)
+{
+   uint64_t flag = 0;
+
+   if (debug != NULL) {
+      for (; control->string != NULL; control++) {
+         if (!strcmp(debug, "all")) {
+            flag |= control->flag;
+
+         } else {
+            const char *s = debug;
+            unsigned n;
+
+            for (; n = strcspn(s, ", "), *s; s += MAX2(1, n)) {
+               if (strlen(control->string) == n &&
+                   !strncmp(control->string, s, n))
+                  flag |= control->flag;
+            }
+         }
+      }
+   }
+
+   return flag;
+}