gpu_tonemapper: Include gpu tonemapper

GPU tonemapper library which is used by HWC to tone
map the layers from one Gamut to another based on the
3D LUT.

Change-Id: Iccaa38e40989e832fd3891a24eca494aba696d9a
Crs-fixed: 1094964
diff --git a/gpu_tonemapper/EGLImageWrapper.cpp b/gpu_tonemapper/EGLImageWrapper.cpp
new file mode 100644
index 0000000..eb0a2ca
--- /dev/null
+++ b/gpu_tonemapper/EGLImageWrapper.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ * Not a Contribution.
+ *
+ * Copyright 2015 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 "EGLImageWrapper.h"
+#include <cutils/native_handle.h>
+#include <gralloc_priv.h>
+#include <ui/GraphicBuffer.h>
+
+std::map<int, EGLImageBuffer *> EGLImageWrapper::eglImageBufferMap;
+
+//-----------------------------------------------------------------------------
+EGLImageBuffer *EGLImageWrapper::wrap(const void *pvt_handle)
+//-----------------------------------------------------------------------------
+{
+  const private_handle_t *src = static_cast<const private_handle_t *>(pvt_handle);
+
+  EGLImageBuffer *result = 0;
+  std::map<int, EGLImageBuffer *>::iterator it = eglImageBufferMap.find(src->fd);
+  if (it == eglImageBufferMap.end()) {
+    native_handle_t *native_handle = const_cast<private_handle_t *>(src);
+
+    int flags = android::GraphicBuffer::USAGE_HW_TEXTURE |
+                android::GraphicBuffer::USAGE_SW_READ_NEVER |
+                android::GraphicBuffer::USAGE_SW_WRITE_NEVER;
+    if (src->flags & private_handle_t::PRIV_FLAGS_SECURE_BUFFER) {
+      flags |= android::GraphicBuffer::USAGE_PROTECTED;
+    }
+
+    android::sp<android::GraphicBuffer> graphicBuffer =
+        new android::GraphicBuffer(src->width, src->height, src->format, flags,
+                                   src->width /*src->stride*/, native_handle, false);
+
+    result = new EGLImageBuffer(graphicBuffer);
+
+    eglImageBufferMap[src->fd] = result;
+  } else {
+    result = it->second;
+  }
+
+  return result;
+}
+
+//-----------------------------------------------------------------------------
+void EGLImageWrapper::destroy()
+//-----------------------------------------------------------------------------
+{
+  std::map<int, EGLImageBuffer *>::iterator it = eglImageBufferMap.begin();
+  for (; it != eglImageBufferMap.end(); it++) {
+    delete it->second;
+  }
+  eglImageBufferMap.clear();
+}
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