test-hwc2: add client target support

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: I94c86795b2e334df0570c6c5a3cbbcb5a8ca2826
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestClientTarget.h b/services/surfaceflinger/tests/hwc2/Hwc2TestClientTarget.h
new file mode 100644
index 0000000..3b47978
--- /dev/null
+++ b/services/surfaceflinger/tests/hwc2/Hwc2TestClientTarget.h
@@ -0,0 +1,69 @@
+/*
+ * 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_CLIENT_TARGET_H
+#define _HWC2_TEST_CLIENT_TARGET_H
+
+#include <set>
+
+#define HWC2_INCLUDE_STRINGIFICATION
+#define HWC2_USE_CPP11
+#include <hardware/hwcomposer2.h>
+#undef HWC2_INCLUDE_STRINGIFICATION
+#undef HWC2_USE_CPP11
+
+#include "Hwc2TestProperties.h"
+#include "Hwc2TestLayers.h"
+
+/* Generates client target buffers from client composition layers */
+class Hwc2TestClientTarget {
+public:
+    int getBuffer(const Hwc2TestLayers& layers,
+            const std::set<hwc2_layer_t>& clientLayers,
+            const std::set<hwc2_layer_t>& clearLayers,
+            bool clearClientTarget, const Area& displayArea,
+            buffer_handle_t* outHandle, int32_t* outAcquireFence);
+
+private:
+    Hwc2TestClientTargetBuffer mBuffer;
+};
+
+/* Generates valid client targets to test which ones the device will support */
+class Hwc2TestClientTargetSupport {
+public:
+    Hwc2TestClientTargetSupport(Hwc2TestCoverage coverage,
+            const Area& displayArea);
+
+    std::string dump() const;
+
+    void reset();
+    bool advance();
+
+    Area getBufferArea() const;
+    android_dataspace_t getDataspace() const;
+    const hwc_region_t getSurfaceDamage() const;
+
+private:
+    std::array<Hwc2TestContainer*, 3> properties = {{
+        &mDataspace, &mSurfaceDamage, &mBufferArea
+    }};
+
+    Hwc2TestBufferArea mBufferArea;
+    Hwc2TestDataspace mDataspace;
+    Hwc2TestSurfaceDamage mSurfaceDamage;
+};
+
+#endif /* ifndef _HWC2_TEST_CLIENT_TARGET_H */