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-rw-r--r--gralloc960/gralloc_vsync.h31
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diff --git a/gralloc960/gralloc_vsync.h b/gralloc960/gralloc_vsync.h
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+/*
+ * Copyright (C) 2014 ARM Limited. All rights reserved.
+ *
+ * Copyright (C) 2008 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 _GRALLOC_VSYNC_H_
+#define _GRALLOC_VSYNC_H_
+
+struct framebuffer_device_t;
+
+/* Enables vsync interrupt. */
+int gralloc_vsync_enable(struct framebuffer_device_t* dev);
+/* Disables vsync interrupt. */
+int gralloc_vsync_disable(struct framebuffer_device_t* dev);
+/* Waits for the vsync interrupt. */
+int gralloc_wait_for_vsync(struct framebuffer_device_t* dev);
+
+#endif /* _GRALLOC_VSYNC_H_ */