Split BufferQueue into core + producer + consumer
Change-Id: Idc39f1e511d68ce4f02202d35425a419bc0bcd92
diff --git a/include/gui/BufferItem.h b/include/gui/BufferItem.h
new file mode 100644
index 0000000..5effd10
--- /dev/null
+++ b/include/gui/BufferItem.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2014 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_GUI_BUFFERITEM_H
+#define ANDROID_GUI_BUFFERITEM_H
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#include <gui/IGraphicBufferConsumer.h>
+
+#include <ui/Rect.h>
+
+#include <utils/Flattenable.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+class Fence;
+class GraphicBuffer;
+
+class BufferItem : public Flattenable<BufferItem> {
+ friend class Flattenable<BufferItem>;
+ size_t getPodSize() const;
+ size_t getFlattenedSize() const;
+ size_t getFdCount() const;
+ status_t flatten(void*& buffer, size_t& size, int*& fds, size_t& count) const;
+ status_t unflatten(void const*& buffer, size_t& size, int const*& fds, size_t& count);
+
+ public:
+ // The default value of mBuf, used to indicate this doesn't correspond to a slot.
+ enum { INVALID_BUFFER_SLOT = -1 };
+ BufferItem();
+ operator IGraphicBufferConsumer::BufferItem() const;
+
+ static const char* scalingModeName(uint32_t scalingMode);
+
+ // mGraphicBuffer points to the buffer allocated for this slot, or is NULL
+ // if the buffer in this slot has been acquired in the past (see
+ // BufferSlot.mAcquireCalled).
+ sp<GraphicBuffer> mGraphicBuffer;
+
+ // mFence is a fence that will signal when the buffer is idle.
+ sp<Fence> mFence;
+
+ // mCrop is the current crop rectangle for this buffer slot.
+ Rect mCrop;
+
+ // mTransform is the current transform flags for this buffer slot.
+ // refer to NATIVE_WINDOW_TRANSFORM_* in <window.h>
+ uint32_t mTransform;
+
+ // mScalingMode is the current scaling mode for this buffer slot.
+ // refer to NATIVE_WINDOW_SCALING_* in <window.h>
+ uint32_t mScalingMode;
+
+ // mTimestamp is the current timestamp for this buffer slot. This gets
+ // to set by queueBuffer each time this slot is queued. This value
+ // is guaranteed to be monotonically increasing for each newly
+ // acquired buffer.
+ int64_t mTimestamp;
+
+ // mIsAutoTimestamp indicates whether mTimestamp was generated
+ // automatically when the buffer was queued.
+ bool mIsAutoTimestamp;
+
+ // mFrameNumber is the number of the queued frame for this slot.
+ uint64_t mFrameNumber;
+
+ // mSlot is the slot index of this buffer (default INVALID_BUFFER_SLOT).
+ int mSlot;
+
+ // mIsDroppable whether this buffer was queued with the
+ // property that it can be replaced by a new buffer for the purpose of
+ // making sure dequeueBuffer() won't block.
+ // i.e.: was the BufferQueue in "mDequeueBufferCannotBlock" when this buffer
+ // was queued.
+ bool mIsDroppable;
+
+ // Indicates whether this buffer has been seen by a consumer yet
+ bool mAcquireCalled;
+
+ // Indicates this buffer must be transformed by the inverse transform of the screen
+ // it is displayed onto. This is applied after mTransform.
+ bool mTransformToDisplayInverse;
+};
+
+} // namespace android
+
+#endif