Move binder magic from the Surface class to GraphicBuffer.

- Register buffers with Gralloc when unflattening a GraphicBuffer (rather than
doing it in the Surface class).
- Add support for a GraphicBuffer that wraps an android_native_window_t*.

Change-Id: I029ac086111bbac800e5ca37eb505f558b718cd8

1 files changed, 20 insertions, 0 deletions

diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index 519c277..436e064 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -77,6 +77,19 @@ GraphicBuffer::GraphicBuffer(uint32_t w, uint32_t h,
     handle = inHandle;
 }
 
+GraphicBuffer::GraphicBuffer(android_native_buffer_t* buffer, bool keepOwnership)
+    : BASE(), mOwner(keepOwnership ? ownHandle : ownNone),
+      mBufferMapper(GraphicBufferMapper::get()),
+      mInitCheck(NO_ERROR), mIndex(-1), mWrappedBuffer(buffer)
+{
+    width  = buffer->width;
+    height = buffer->height;
+    stride = buffer->stride;
+    format = buffer->format;
+    usage  = buffer->usage;
+    handle = buffer->handle;
+}
+
 GraphicBuffer::~GraphicBuffer()
 {
     if (handle) {
@@ -87,12 +100,14 @@ GraphicBuffer::~GraphicBuffer()
 void GraphicBuffer::free_handle()
 {
     if (mOwner == ownHandle) {
+        mBufferMapper.unregisterBuffer(handle);
         native_handle_close(handle);
         native_handle_delete(const_cast<native_handle*>(handle));
     } else if (mOwner == ownData) {
         GraphicBufferAllocator& allocator(GraphicBufferAllocator::get());
         allocator.free(handle);
     }
+    mWrappedBuffer = 0;
 }
 
 status_t GraphicBuffer::initCheck() const {
@@ -253,6 +268,11 @@ status_t GraphicBuffer::unflatten(void const* buffer, size_t size,
     }
 
     mOwner = ownHandle;
+
+    if (handle != 0) {
+        mBufferMapper.registerBuffer(handle);
+    }
+
     return NO_ERROR;
 }