1 files changed, 65 insertions, 0 deletions
diff --git a/libs/hostgraphics/gui/IGraphicBufferConsumer.h b/libs/hostgraphics/gui/IGraphicBufferConsumer.h
new file mode 100644
index 000000000000..9eb67b218800
--- /dev/null
+++ b/libs/hostgraphics/gui/IGraphicBufferConsumer.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#pragma once
+
+#include <utils/RefBase.h>
+
+#include <ui/PixelFormat.h>
+
+#include <utils/Errors.h>
+
+namespace android {
+
+class BufferItem;
+class Fence;
+class GraphicBuffer;
+
+class IGraphicBufferConsumer : virtual public RefBase {
+public:
+    enum {
+        // Returned by releaseBuffer, after which the consumer must free any references to the
+        // just-released buffer that it might have.
+        STALE_BUFFER_SLOT = 1,
+        // Returned by dequeueBuffer if there are no pending buffers available.
+        NO_BUFFER_AVAILABLE,
+        // Returned by dequeueBuffer if it's too early for the buffer to be acquired.
+        PRESENT_LATER,
+    };
+
+    virtual status_t acquireBuffer(BufferItem* buffer, nsecs_t presentWhen,
+                                   uint64_t maxFrameNumber = 0) = 0;
+
+    virtual status_t detachBuffer(int slot) = 0;
+
+    virtual status_t getReleasedBuffers(uint64_t* slotMask) = 0;
+
+    virtual status_t setDefaultBufferSize(uint32_t w, uint32_t h) = 0;
+
+    virtual status_t setMaxAcquiredBufferCount(int maxAcquiredBuffers) = 0;
+
+    virtual status_t setDefaultBufferFormat(PixelFormat defaultFormat) = 0;
+
+    virtual status_t setDefaultBufferDataSpace(android_dataspace defaultDataSpace) = 0;
+
+    virtual status_t setConsumerUsageBits(uint64_t usage) = 0;
+
+    virtual status_t setConsumerIsProtected(bool isProtected) = 0;
+
+    virtual status_t discardFreeBuffers() = 0;
+};
+
+} // namespace android
+\ No newline at end of file