VulkanViewer on Android

tools/vulkan/android/Window_android.h

Index: tools/vulkan/android/Window_android.h
diff --git a/tools/vulkan/android/Window_android.h b/tools/vulkan/android/Window_android.h
new file mode 100644
index 0000000000000000000000000000000000000000..a4805bd74c065827a0efced8b63dcb6493efe8c8
--- /dev/null
+++ b/tools/vulkan/android/Window_android.h
@@ -0,0 +1,48 @@
+/*
+* Copyright 2016 Google Inc.
+*
+* Use of this source code is governed by a BSD-style license that can be
+* found in the LICENSE file.
+*/
+
+#ifndef Window_android_DEFINED
+#define Window_android_DEFINED
+
+#include "../Window.h"
+#include <android_native_app_glue.h>
+
+enum {
+    /**
+     * Leave plenty of space between this item and the ones defined in the glue layer
+     */
+	APP_CMD_INVAL_WINDOW = 64,
+};
+
+class Window_android : public Window {
+public:
+	Window_android() : Window() {}
+    ~Window_android() override {}
+
+    bool init(android_app* app_state);
+    void initDisplay(ANativeWindow* window);
+
+    void setTitle(const char*) override;
+    void show() override {}
+
+    bool attach(BackEndType attachType, int msaaSampleCount, AttachmentInfo*) override;
+    void inval() override;
+
+    void paintIfNeeded();
+
+    bool scaleContentToFit() const override { return true; }
+    bool supportsContentRect() const override { return true; }
+    SkRect getContentRect() override { return mContentRect; }
+    void setContentRect(int l, int t, int r, int b) { mContentRect.set(l,t,r,b); }
+
+private:
+    android_app* mApp = nullptr;
+    SkRect mContentRect;
+    int mSampleCount = 0;
+};
+
+#endif