graphics: use allocator HAL support library in default impl

Rename Gralloc0Allocator to Gralloc0Hal and make it inherit from
AllocatorHal.  Do the same to Gralloc1Allocator.  Add GrallocLoader
to load either of Gralloc[01]Hal and create a IAllocator instance.

Test: boots and VTS
Change-Id: I09ae680c0086ca9e73e412a34d7cd2f3665d3bc2

1 files changed, 25 insertions, 0 deletions

diff --git a/graphics/allocator/2.0/default/passthrough.cpp b/graphics/allocator/2.0/default/passthrough.cpp
new file mode 100644
index 0000000000..132cab3c60
--- /dev/null
+++ b/graphics/allocator/2.0/default/passthrough.cpp
@@ -0,0 +1,25 @@
+/*
+ * Copyright 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.
+ */
+
+#include <allocator-passthrough/2.0/GrallocLoader.h>
+#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
+
+using android::hardware::graphics::allocator::V2_0::IAllocator;
+using android::hardware::graphics::allocator::V2_0::passthrough::GrallocLoader;
+
+extern "C" IAllocator* HIDL_FETCH_IAllocator(const char* /* name */) {
+    return GrallocLoader::load();
+}