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-rw-r--r--src/gallium/auxiliary/util/p_debug.c59
-rw-r--r--src/gallium/include/pipe/p_debug.h49
2 files changed, 108 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/p_debug.c b/src/gallium/auxiliary/util/p_debug.c
index bb84e8096d..bd3a0221ea 100644
--- a/src/gallium/auxiliary/util/p_debug.c
+++ b/src/gallium/auxiliary/util/p_debug.c
@@ -52,6 +52,9 @@ rpl_EngDebugPrint(const char *format, ...)
}
int rpl_vsnprintf(char *, size_t, const char *, va_list);
+int rpl_snprintf(char *str, size_t size, const char *format, ...);
+#define vsnprintf rpl_vsnprintf
+#define snprintf rpl_snprintf
#endif
@@ -181,3 +184,59 @@ void debug_mask_vprintf(uint32_t uuid, uint32_t what, const char *format, va_lis
if(mask & what)
debug_vprintf(format, ap);
}
+
+
+const char *
+debug_dump_enum(const struct debug_named_value *names,
+ unsigned long value)
+{
+ static char rest[256];
+
+ while(names->name) {
+ if(names->value == value)
+ return names->name;
+ ++names;
+ }
+
+ snprintf(rest, sizeof(rest), "0x%08x", value);
+ return rest;
+}
+
+
+const char *
+debug_dump_flags(const struct debug_named_value *names,
+ unsigned long value)
+{
+ static char output[4096];
+ static char rest[256];
+ int first = 1;
+
+ output[0] = '\0';
+
+ while(names->name) {
+ if((names->value & value) == names->value) {
+ if (!first)
+ strncat(output, "|", sizeof(output));
+ else
+ first = 0;
+ strncat(output, names->name, sizeof(output));
+ value &= ~names->value;
+ }
+ ++names;
+ }
+
+ if (value) {
+ if (!first)
+ strncat(output, "|", sizeof(output));
+ else
+ first = 0;
+
+ snprintf(rest, sizeof(rest), "0x%08x", value);
+ strncat(output, rest, sizeof(output));
+ }
+
+ if(first)
+ return "0";
+
+ return output;
+}
diff --git a/src/gallium/include/pipe/p_debug.h b/src/gallium/include/pipe/p_debug.h
index f3dfa06216..e924c1ef60 100644
--- a/src/gallium/include/pipe/p_debug.h
+++ b/src/gallium/include/pipe/p_debug.h
@@ -168,6 +168,55 @@ void debug_mask_vprintf(uint32_t uuid,
#endif
+/**
+ * Used by debug_dump_enum and debug_dump_flags to describe symbols.
+ */
+struct debug_named_value
+{
+ const char *name;
+ unsigned long value;
+};
+
+
+/**
+ * Some C pre-processor magic to simplify creating named values.
+ *
+ * Example:
+ * @code
+ * static const debug_named_value my_names[] = {
+ * DEBUG_NAMED_VALUE(MY_ENUM_VALUE_X),
+ * DEBUG_NAMED_VALUE(MY_ENUM_VALUE_Y),
+ * DEBUG_NAMED_VALUE(MY_ENUM_VALUE_Z),
+ * DEBUG_NAMED_VALUE_END
+ * };
+ *
+ * ...
+ * debug_printf("%s = %s\n",
+ * name,
+ * debug_dump_enum(my_names, my_value));
+ * ...
+ * @endcode
+ */
+#define DEBUG_NAMED_VALUE(__symbol) {#__symbol, (unsigned long)__symbol}
+#define DEBUG_NAMED_VALUE_END {NULL, 0}
+
+
+/**
+ * Convert a enum value to a string.
+ */
+const char *
+debug_dump_enum(const struct debug_named_value *names,
+ unsigned long value);
+
+
+/**
+ * Convert binary flags value to a string.
+ */
+const char *
+debug_dump_flags(const struct debug_named_value *names,
+ unsigned long value);
+
+
#ifdef __cplusplus
}
#endif