1 files changed, 57 insertions, 0 deletions
diff --git a/src/egl/main/egllog.c b/src/egl/main/egllog.c
new file mode 100644
index 00000000000..59b1d2684e3
--- /dev/null
+++ b/src/egl/main/egllog.c
@@ -0,0 +1,57 @@
+/**
+ * Logging facility for debug/info messages.
+ */
+
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "egllog.h"
+
+#define MAXSTRING 1000
+
+
+/* XXX init this with an env var or something */
+static EGLint ReportingLevel = _EGL_DEBUG;
+
+
+/**
+ * Log a message to stderr.
+ * \param level one of _EGL_FATAL, _EGL_WARNING, _EGL_INFO, _EGL_DEBUG.
+ */
+void
+_eglLog(EGLint level, const char *fmtStr, ...)
+{
+   va_list args;
+   char msg[MAXSTRING];
+   const char *levelStr;
+
+   if (level <= ReportingLevel) {
+      switch (level) {
+      case _EGL_FATAL:
+         levelStr = "Fatal";
+         break;
+      case _EGL_WARNING:
+         levelStr = "Warning";
+         break;
+      case _EGL_INFO:
+         levelStr = "Info";
+         break;
+      case _EGL_DEBUG:
+         levelStr = "Debug";
+         break;
+      default:
+         levelStr = "";
+      }
+
+      va_start(args, fmtStr);
+      vsnprintf(msg, MAXSTRING, fmtStr, args);
+      va_end(args);
+
+      fprintf(stderr, "EGL %s: %s\n", levelStr, msg);
+
+      if (level == _EGL_FATAL) {
+         exit(1); /* or abort()? */
+      }
+   }
+}