1 files changed, 91 insertions, 0 deletions
diff --git a/include/gui/ISurfaceTexture.h b/include/gui/ISurfaceTexture.h
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+++ b/include/gui/ISurfaceTexture.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2010 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_ISURFACETEXTURE_H
+#define ANDROID_GUI_ISURFACETEXTURE_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+#include <binder/IInterface.h>
+
+#include <ui/GraphicBuffer.h>
+#include <ui/Rect.h>
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+class ISurfaceTexture : public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(SurfaceTexture);
+
+    // requestBuffer requests a new buffer for the given index. The server (i.e.
+    // the ISurfaceTexture implementation) assigns the newly created buffer to
+    // the given slot index, and the client is expected to mirror the
+    // slot->buffer mapping so that it's not necessary to transfer a
+    // GraphicBuffer for every dequeue operation.
+    virtual sp<GraphicBuffer> requestBuffer(int slot, uint32_t w, uint32_t h,
+            uint32_t format, uint32_t usage) = 0;
+
+    // setBufferCount sets the number of buffer slots available. Calling this
+    // will also cause all buffer slots to be emptied. The caller should empty
+    // its mirrored copy of the buffer slots when calling this method.
+    virtual status_t setBufferCount(int bufferCount) = 0;
+
+    // dequeueBuffer requests a new buffer slot for the client to use. Ownership
+    // of the slot is transfered to the client, meaning that the server will not
+    // use the contents of the buffer associated with that slot. The slot index
+    // returned may or may not contain a buffer. If the slot is empty the client
+    // should call requestBuffer to assign a new buffer to that slot. The client
+    // is expected to either call cancelBuffer on the dequeued slot or to fill
+    // in the contents of its associated buffer contents and call queueBuffer.
+    virtual status_t dequeueBuffer(int *slot) = 0;
+
+    // queueBuffer indicates that the client has finished filling in the
+    // contents of the buffer associated with slot and transfers ownership of
+    // that slot back to the server. It is not valid to call queueBuffer on a
+    // slot that is not owned by the client or one for which a buffer associated
+    // via requestBuffer.
+    virtual status_t queueBuffer(int slot) = 0;
+
+    // cancelBuffer indicates that the client does not wish to fill in the
+    // buffer associated with slot and transfers ownership of the slot back to
+    // the server.
+    virtual void cancelBuffer(int slot) = 0;
+
+    virtual status_t setCrop(const Rect& reg) = 0;
+    virtual status_t setTransform(uint32_t transform) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnSurfaceTexture : public BnInterface<ISurfaceTexture>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_ISURFACETEXTURE_H