graphics: clean up mapper VTS tests

Add libVtsHalGraphicsMapperUtils which provides a wrapper to
IMapper.  Port tests to be based on libVtsHalGraphicsMapperUtils.

Test: manual
Change-Id: I0639df178fd0a94153b48733930bb13f2d0aa930
diff --git a/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperTestUtils.h b/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperTestUtils.h
new file mode 100644
index 0000000..c186b00
--- /dev/null
+++ b/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperTestUtils.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2017 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 VTS_HAL_GRAPHICS_MAPPER_UTILS
+#define VTS_HAL_GRAPHICS_MAPPER_UTILS
+
+#include <memory>
+#include <unordered_map>
+
+#include <android/hardware/graphics/mapper/2.0/IMapper.h>
+#include <utils/StrongPointer.h>
+
+#include "VtsHalGraphicsAllocatorTestUtils.h"
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace mapper {
+namespace V2_0 {
+namespace tests {
+
+using android::hardware::graphics::common::V1_0::PixelFormat;
+using android::hardware::graphics::allocator::V2_0::IAllocatorClient;
+using android::hardware::graphics::allocator::V2_0::tests::AllocatorClient;
+
+// A wrapper to IMapper.
+class Mapper {
+ public:
+  Mapper();
+  ~Mapper();
+
+  sp<IMapper> getRaw() const;
+
+  void retain(const native_handle_t* handle);
+  void release(const native_handle_t* handle);
+
+  struct Dimensions {
+    uint32_t width;
+    uint32_t height;
+  };
+  Dimensions getDimensions(const native_handle_t* handle);
+
+  PixelFormat getFormat(const native_handle_t* handle);
+  uint32_t getLayerCount(const native_handle_t* handle);
+  uint64_t getProducerUsageMask(const native_handle_t* handle);
+  uint64_t getConsumerUsageMask(const native_handle_t* handle);
+  BackingStore getBackingStore(const native_handle_t* handle);
+  uint32_t getStride(const native_handle_t* handle);
+
+  // We use fd instead of hidl_handle in these functions to pass fences
+  // in and out of the mapper.  The ownership of the fd is always transferred
+  // with each of these functions.
+  void* lock(const native_handle_t* handle, uint64_t producerUsageMask,
+             uint64_t consumerUsageMask, const IMapper::Rect& accessRegion,
+             int acquireFence);
+  FlexLayout lockFlex(const native_handle_t* handle, uint64_t producerUsageMask,
+                      uint64_t consumerUsageMask,
+                      const IMapper::Rect& accessRegion, int acquireFence);
+  int unlock(const native_handle_t* handle);
+
+  // Requests AllocatorClient to allocate a buffer, export the handle, and
+  // register the handle with mapper.
+  const native_handle_t* allocate(
+      std::unique_ptr<AllocatorClient>& allocatorClient,
+      const IAllocatorClient::BufferDescriptorInfo& info);
+
+ private:
+  void init();
+
+  sp<IMapper> mMapper;
+
+  // Keep track of all registered (retained) handles.  When a test fails with
+  // ASSERT_*, the destructor will release the handles for the test.
+  std::unordered_map<const native_handle_t*, uint64_t> mHandles;
+};
+
+}  // namespace tests
+}  // namespace V2_0
+}  // namespace mapper
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
+
+#endif  // VTS_HAL_GRAPHICS_MAPPER_UTILS