commit 4a8b118e2bea9e46d07deaabcfc8f9ccd0ef8d17
author Arun Kumar K.R <akumarkr@codeaurora.org> Thu Jan 26 19:44:33 2017 -0800
committer Arun Kumar K.R <akumarkr@codeaurora.org> Fri Jan 27 17:52:14 2017 -0800
tree 1d2d4a18c6ac7759d6b75e573936758184062430
parent 1b04a4ee501ea58b0fe642d95b401bb1d402b844

display: Use ion cookie in GPU Tonemapper

- The fd's used for book-keeping can change when the clients
  close and reopen sessions, hence they are not reliable and
  can lead to incorrect virtual address usage causing
  corruption or stale data.
- Hence use ion cookie for book-keeping which is unique for a
  given memory fd.
- Use LRU method free up/reuse on reaching max limit.
- Remove Tonemapper_destroy which is not needed anymore.

Change-Id: I5777649b34210977c18ce20c65e0aa2baa8e7d26
Crs-fixed: 1110175

gpu_tonemapper/EGLImageWrapper.h

diff --git a/gpu_tonemapper/EGLImageWrapper.h b/gpu_tonemapper/EGLImageWrapper.h
index 90aaf58..e9a4d68 100644
--- a/gpu_tonemapper/EGLImageWrapper.h
+++ b/gpu_tonemapper/EGLImageWrapper.h
@@ -20,15 +20,28 @@
 #ifndef __TONEMAPPER_EGLIMAGEWRAPPER_H__
 #define __TONEMAPPER_EGLIMAGEWRAPPER_H__
 
-#include <map>
+#include <utils/LruCache.h>
 #include "EGLImageBuffer.h"
 
 class EGLImageWrapper {
-  std::map<int, EGLImageBuffer *> eglImageBufferMap;
+    private:
+        class DeleteEGLImageCallback : public android::OnEntryRemoved<int, EGLImageBuffer*>
+        {
+        private:
+          int ion_fd;
+        public:
+          DeleteEGLImageCallback(int ion_fd);
+          void operator()(int& ion_cookie, EGLImageBuffer*& eglImage);
+        };
 
- public:
-  EGLImageBuffer *wrap(const void *pvt_handle);
-  void destroy();
+        android::LruCache<int, EGLImageBuffer *>* eglImageBufferMap;
+        DeleteEGLImageCallback* callback;
+        int ion_fd;
+
+    public:
+        EGLImageWrapper();
+        ~EGLImageWrapper();
+        EGLImageBuffer* wrap(const void *pvt_handle);
 };
 
 #endif  //__TONEMAPPER_EGLIMAGEWRAPPER_H__