VulkanViewer on Android

tools/vulkan/android/main_android.cpp

Index: tools/vulkan/android/main_android.cpp
diff --git a/tools/vulkan/android/main_android.cpp b/tools/vulkan/android/main_android.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..783cd1f7835f96749a61a182adda0e11a6c12ee7
--- /dev/null
+++ b/tools/vulkan/android/main_android.cpp
@@ -0,0 +1,67 @@
+/*
+* Copyright 2016 Google Inc.
+*
+* Use of this source code is governed by a BSD-style license that can be
+* found in the LICENSE file.
+*/
+
+#include <jni.h>
+#include <errno.h>
+
+#include <android_native_app_glue.h>
+
+#include "../Application.h"
+#include "Timer.h"
+
+static double now_ms() { return SkTime::GetNSecs() * 1e-6; }
+
+/**
+ * This is the main entry point of a native application that is using
+ * android_native_app_glue.  It runs in its own thread, with its own
+ * event loop for receiving input events and doing other things.
+ */
+void android_main(struct android_app* state) {
+    // Make sure glue isn't stripped.
+    app_dummy();
+
+    static const char* gCmdLine[] = {
+        "vulkanviewer",
+        "--skps",
+        "/data/local/tmp/skp",
+    };
+
+    std::unique_ptr<Application> vkApp(Application::Create(SK_ARRAY_COUNT(gCmdLine),
+                                                           const_cast<char**>(gCmdLine),
+                                                           state));
+
+    double currentTime = 0.0;
+    double previousTime = 0.0;
+
+    // loop waiting for stuff to do.
+    while (1) {
+        // Read all pending events.
+        int ident;
+        int events;
+        struct android_poll_source* source;
+
+        // block forever waiting for events.
+        while ((ident=ALooper_pollAll(-1, NULL, &events,
+                (void**)&source)) >= 0) {
+
+            // Process this event.
+            if (source != NULL) {
+                source->process(state, source);
+            }
+
+            // Check if we are exiting.
+            if (state->destroyRequested != 0) {
+                return;
+            }
+
+            previousTime = currentTime;
+            currentTime = now_ms();
+            vkApp->onIdle(currentTime - previousTime);
+        }
+    }
+}
+//END_INCLUDE(all)