Change how SkDebugf is sent to stdout on Android.

Previously, a function was called using dlsym in skia_launcher.

Add a static initializer that changes the setting, and include that for
the tools we automate for testing.

Also only do va_copy if we actually use it.

BUG=skia:2454

Review URL: https://codereview.chromium.org/753543003

1 files changed, 24 insertions, 0 deletions

diff --git a/tools/AndroidSkDebugToStdOut.cpp b/tools/AndroidSkDebugToStdOut.cpp
new file mode 100644
index 0000000000..9dc991164d
--- /dev/null
+++ b/tools/AndroidSkDebugToStdOut.cpp
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+// Need to include SkTypes before checking SK_BUILD_FOR_ANDROID, so it will be
+// set in the Android framework build.
+#include "SkTypes.h"
+#ifdef SK_BUILD_FOR_ANDROID
+extern bool gSkDebugToStdOut;
+
+// Use a static initializer to set gSkDebugToStdOut to true, sending SkDebugf
+// to stdout.
+class SendToStdOut {
+public:
+    SendToStdOut() {
+        gSkDebugToStdOut = true;
+    }
+};
+
+static SendToStdOut gSendToStdOut;
+#endif // SK_BUILD_FOR_ANDROID