test-hwc2: virtual displays

Test: Add "#define HAVE_NO_SURFACE_FLINGER" to
      frameworks/native/libs/gui/BufferQueueCore.cpp.
      Recompile and flash.
      Run "mm" in frameworks/native/services/surfaceflinger/tests/hwc2.
      Push test-hwc2 to device.
      Run "adb root && adb shell stop".
      Run test case. Ex: "./test-hwc2"

Change-Id: Ia10ec761712ee03f56782e3df2d6eabf7fb77760
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestVirtualDisplay.h b/services/surfaceflinger/tests/hwc2/Hwc2TestVirtualDisplay.h
new file mode 100644
index 0000000..09420ef
--- /dev/null
+++ b/services/surfaceflinger/tests/hwc2/Hwc2TestVirtualDisplay.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _HWC2_TEST_VIRTUAL_DISPLAY_H
+#define _HWC2_TEST_VIRTUAL_DISPLAY_H
+
+#include "Hwc2TestBuffer.h"
+#include "Hwc2TestProperties.h"
+
+#define HWC2_INCLUDE_STRINGIFICATION
+#define HWC2_USE_CPP11
+#include <hardware/hwcomposer2.h>
+#undef HWC2_INCLUDE_STRINGIFICATION
+#undef HWC2_USE_CPP11
+
+class Hwc2TestVirtualDisplay {
+public:
+    Hwc2TestVirtualDisplay(Hwc2TestCoverage coverage);
+
+    std::string dump() const;
+
+    int getBuffer(buffer_handle_t* outHandle,
+            android::base::unique_fd* outAcquireFence);
+
+    void reset();
+    bool advance();
+
+    UnsignedArea getDisplayDimension() const;
+
+private:
+    Hwc2TestBuffer mBuffer;
+
+    Hwc2TestDisplayDimension mDisplayDimension;
+};
+
+#endif /* ifndef _HWC2_TEST_VIRTUAL_DISPLAY_H */