camera: Rename mBuf to mSlot

Bug: 19769719
Change-Id: I9eef512f2a2185b7e0298113d2503b62ec2e5942
diff --git a/services/camera/libcameraservice/api1/client2/StreamingProcessor.cpp b/services/camera/libcameraservice/api1/client2/StreamingProcessor.cpp
index 66d7b00..88a0f50 100644
--- a/services/camera/libcameraservice/api1/client2/StreamingProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/StreamingProcessor.cpp
@@ -788,7 +788,7 @@
                 return NO_MEMORY;
             }
             for (size_t i = 0; i < mRecordingBuffers.size(); i++) {
-                if (mRecordingBuffers[i].mBuf !=
+                if (mRecordingBuffers[i].mSlot !=
                         BufferItemConsumer::INVALID_BUFFER_SLOT) {
                     ALOGE("%s: Camera %d: Non-empty recording buffers list!",
                             __FUNCTION__, mId);
@@ -878,7 +878,7 @@
     size_t itemIndex;
     for (itemIndex = 0; itemIndex < mRecordingBuffers.size(); itemIndex++) {
         const BufferItem item = mRecordingBuffers[itemIndex];
-        if (item.mBuf != BufferItemConsumer::INVALID_BUFFER_SLOT &&
+        if (item.mSlot != BufferItemConsumer::INVALID_BUFFER_SLOT &&
                 item.mGraphicBuffer->getNativeBuffer() == payload->pBuffer) {
                 break;
         }
@@ -923,7 +923,7 @@
     size_t releasedCount = 0;
     for (size_t itemIndex = 0; itemIndex < mRecordingBuffers.size(); itemIndex++) {
         const BufferItem item = mRecordingBuffers[itemIndex];
-        if (item.mBuf != BufferItemConsumer::INVALID_BUFFER_SLOT) {
+        if (item.mSlot != BufferItemConsumer::INVALID_BUFFER_SLOT) {
             res = mRecordingConsumer->releaseBuffer(mRecordingBuffers[itemIndex]);
             if (res != OK) {
                 ALOGE("%s: Camera %d: Unable to free recording frame "
diff --git a/services/camera/libcameraservice/gui/RingBufferConsumer.cpp b/services/camera/libcameraservice/gui/RingBufferConsumer.cpp
index 8cd6800..65816e0 100644
--- a/services/camera/libcameraservice/gui/RingBufferConsumer.cpp
+++ b/services/camera/libcameraservice/gui/RingBufferConsumer.cpp
@@ -229,7 +229,7 @@
 
         // item.mGraphicBuffer was populated with the proper graphic-buffer
         // at acquire even if it was previously acquired
-        err = addReleaseFenceLocked(item.mBuf,
+        err = addReleaseFenceLocked(item.mSlot,
                 item.mGraphicBuffer, item.mFence);
 
         if (err != OK) {
@@ -244,7 +244,7 @@
 
         // item.mGraphicBuffer was populated with the proper graphic-buffer
         // at acquire even if it was previously acquired
-        err = releaseBufferLocked(item.mBuf, item.mGraphicBuffer,
+        err = releaseBufferLocked(item.mSlot, item.mGraphicBuffer,
                                   EGL_NO_DISPLAY,
                                   EGL_NO_SYNC_KHR);
         if (err != OK) {
@@ -318,7 +318,7 @@
 
         mLatestTimestamp = item.mTimestamp;
 
-        item.mGraphicBuffer = mSlots[item.mBuf].mGraphicBuffer;
+        item.mGraphicBuffer = mSlots[item.mSlot].mGraphicBuffer;
     } // end of mMutex lock
 
     ConsumerBase::onFrameAvailable(item);
@@ -335,7 +335,7 @@
 
         RingBufferItem& find = *it;
         if (item.mGraphicBuffer == find.mGraphicBuffer) {
-            status_t res = addReleaseFenceLocked(item.mBuf,
+            status_t res = addReleaseFenceLocked(item.mSlot,
                     item.mGraphicBuffer, item.mFence);
 
             if (res != OK) {
diff --git a/services/camera/libcameraservice/gui/RingBufferConsumer.h b/services/camera/libcameraservice/gui/RingBufferConsumer.h
index 83e7298..243ea31 100644
--- a/services/camera/libcameraservice/gui/RingBufferConsumer.h
+++ b/services/camera/libcameraservice/gui/RingBufferConsumer.h
@@ -133,7 +133,7 @@
         }
 
         bool isEmpty() {
-            return mBufferItem.mBuf == BufferQueue::INVALID_BUFFER_SLOT;
+            return mBufferItem.mSlot == BufferQueue::INVALID_BUFFER_SLOT;
         }
 
         BufferItem& getBufferItem() { return mBufferItem; }