1 files changed, 68 insertions, 0 deletions
diff --git a/services/surfaceflinger/DisplayHardware/DisplaySurface.h b/services/surfaceflinger/DisplayHardware/DisplaySurface.h
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+++ b/services/surfaceflinger/DisplayHardware/DisplaySurface.h
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+/*
+ * Copyright 2013 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_SF_DISPLAY_SURFACE_H
+#define ANDROID_SF_DISPLAY_SURFACE_H
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/StrongPointer.h>
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+class IGraphicBufferProducer;
+class String8;
+
+class DisplaySurface : public virtual RefBase {
+public:
+    virtual sp<IGraphicBufferProducer> getIGraphicBufferProducer() const = 0;
+
+    // Should be called when composition rendering is complete for a frame (but
+    // eglSwapBuffers hasn't necessarily been called). Required by certain
+    // older drivers for synchronization.
+    // TODO: Remove this when we drop support for HWC 1.0.
+    virtual status_t compositionComplete() = 0;
+
+    // Inform the surface that GLES composition is complete for this frame, and
+    // the surface should make sure that HWComposer has the correct buffer for
+    // this frame. Some implementations may only push a new buffer to
+    // HWComposer if GLES composition took place, others need to push a new
+    // buffer on every frame.
+    //
+    // advanceFrame must be followed by a call to  onFrameCommitted before
+    // advanceFrame may be called again.
+    virtual status_t advanceFrame() = 0;
+
+    // onFrameCommitted is called after the frame has been committed to the
+    // hardware composer. The surface collects the release fence for this
+    // frame's buffer.
+    virtual void onFrameCommitted() = 0;
+
+    virtual void dump(String8& result) const = 0;
+
+protected:
+    DisplaySurface() {}
+    virtual ~DisplaySurface() {}
+};
+
+// ---------------------------------------------------------------------------
+} // namespace android
+// ---------------------------------------------------------------------------
+
+#endif // ANDROID_SF_DISPLAY_SURFACE_H
+