1 files changed, 154 insertions, 0 deletions
diff --git a/msm8909/gpu_tonemapper/EGLImageWrapper.cpp b/msm8909/gpu_tonemapper/EGLImageWrapper.cpp
new file mode 100644
index 00000000..dfc16d84
--- /dev/null
+++ b/msm8909/gpu_tonemapper/EGLImageWrapper.cpp
@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2016-2017, 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>
+#include <fcntl.h>
+#include <linux/msm_ion.h>
+
+//-----------------------------------------------------------------------------
+void free_ion_cookie(int ion_fd, int cookie)
+//-----------------------------------------------------------------------------
+{
+  if (ion_fd && !ioctl(ion_fd, ION_IOC_FREE, &cookie)) {
+  } else {
+      ALOGE("ION_IOC_FREE failed: ion_fd = %d, cookie = %d", ion_fd, cookie);
+  }
+}
+
+//-----------------------------------------------------------------------------
+int get_ion_cookie(int ion_fd, int fd)
+//-----------------------------------------------------------------------------
+{
+   int cookie = fd;
+
+   struct ion_fd_data fdData;
+   memset(&fdData, 0, sizeof(fdData));
+   fdData.fd = fd;
+
+   if (ion_fd && !ioctl(ion_fd, ION_IOC_IMPORT, &fdData)) {
+        cookie = fdData.handle;
+   } else {
+        ALOGE("ION_IOC_IMPORT failed: ion_fd = %d, fd = %d", ion_fd, fd);
+   }
+
+   return cookie;
+}
+
+//-----------------------------------------------------------------------------
+EGLImageWrapper::DeleteEGLImageCallback::DeleteEGLImageCallback(int fd)
+//-----------------------------------------------------------------------------
+{
+    ion_fd = fd;
+}
+
+//-----------------------------------------------------------------------------
+void EGLImageWrapper::DeleteEGLImageCallback::operator()(int& k, EGLImageBuffer*& eglImage)
+//-----------------------------------------------------------------------------
+{
+    free_ion_cookie(ion_fd,  k);
+    if( eglImage != 0 )
+    {
+        delete eglImage;
+    }
+}
+
+//-----------------------------------------------------------------------------
+EGLImageWrapper::EGLImageWrapper()
+//-----------------------------------------------------------------------------
+{
+    eglImageBufferMap = new android::LruCache<int, EGLImageBuffer*>(32);
+    ion_fd = open("/dev/ion", O_RDONLY);
+    callback = new DeleteEGLImageCallback(ion_fd);
+    eglImageBufferMap->setOnEntryRemovedListener(callback);
+}
+
+//-----------------------------------------------------------------------------
+EGLImageWrapper::~EGLImageWrapper()
+//-----------------------------------------------------------------------------
+{
+    if( eglImageBufferMap != 0 )
+    {
+        eglImageBufferMap->clear();
+        delete eglImageBufferMap;
+        eglImageBufferMap = 0;
+    }
+
+    if( callback != 0 )
+    {
+        delete callback;
+        callback = 0;
+    }
+
+    if( ion_fd > 0 )
+    {
+        close(ion_fd);
+    }
+    ion_fd = -1;
+}
+//-----------------------------------------------------------------------------
+static EGLImageBuffer* L_wrap(const private_handle_t *src)
+//-----------------------------------------------------------------------------
+{
+    EGLImageBuffer* result = 0;
+
+    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->unaligned_width, src->unaligned_height, src->format,
+#ifndef __NOUGAT__
+                                   1, // Layer count
+#endif
+                                   flags, src->width /*src->stride*/,
+                                   native_handle, false);
+
+    result = new EGLImageBuffer(graphicBuffer);
+
+    return result;
+}
+
+//-----------------------------------------------------------------------------
+EGLImageBuffer *EGLImageWrapper::wrap(const void *pvt_handle)
+//-----------------------------------------------------------------------------
+{
+    const private_handle_t *src = static_cast<const private_handle_t *>(pvt_handle);
+
+    int ion_cookie = get_ion_cookie(ion_fd, src->fd);
+    EGLImageBuffer* eglImage = eglImageBufferMap->get(ion_cookie);
+    if( eglImage == 0 )
+    {
+        eglImage = L_wrap(src);
+        eglImageBufferMap->put(ion_cookie, eglImage);
+    }
+    else {
+        free_ion_cookie(ion_fd, ion_cookie);
+    }
+
+    return eglImage;
+}