| /* |
| * 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. |
| virtual status_t advanceFrame() = 0; |
| |
| // setReleaseFenceFd stores a fence file descriptor that will signal when |
| // the current buffer is no longer being read. This fence will be returned |
| // to the producer when the current buffer is released by updateTexImage(). |
| // Multiple fences can be set for a given buffer; they will be merged into |
| // a single union fence. The GLConsumer will close the file descriptor |
| // when finished with it. |
| virtual status_t setReleaseFenceFd(int fenceFd) = 0; |
| |
| virtual void dump(String8& result) const = 0; |
| |
| protected: |
| DisplaySurface() {} |
| virtual ~DisplaySurface() {} |
| }; |
| |
| // --------------------------------------------------------------------------- |
| } // namespace android |
| // --------------------------------------------------------------------------- |
| |
| #endif // ANDROID_SF_DISPLAY_SURFACE_H |
| |