1 files changed, 64 insertions, 0 deletions
diff --git a/include/ui/GraphicBufferMapper.h b/include/ui/GraphicBufferMapper.h
new file mode 100644
index 0000000..697a02a
--- /dev/null
+++ b/include/ui/GraphicBufferMapper.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2007 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 ANDROID_UI_BUFFER_MAPPER_H
+#define ANDROID_UI_BUFFER_MAPPER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Singleton.h>
+
+#include <hardware/gralloc.h>
+
+
+struct gralloc_module_t;
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+class Rect;
+
+class GraphicBufferMapper : public Singleton<GraphicBufferMapper>
+{
+public:
+    static inline GraphicBufferMapper& get() { return getInstance(); }
+
+    status_t registerBuffer(buffer_handle_t handle);
+
+    status_t unregisterBuffer(buffer_handle_t handle);
+    
+    status_t lock(buffer_handle_t handle,
+            int usage, const Rect& bounds, void** vaddr);
+
+    status_t unlock(buffer_handle_t handle);
+    
+    // dumps information about the mapping of this handle
+    void dump(buffer_handle_t handle);
+
+private:
+    friend class Singleton<GraphicBufferMapper>;
+    GraphicBufferMapper();
+    gralloc_module_t const *mAllocMod;
+};
+
+// ---------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_UI_BUFFER_MAPPER_H
+