| The Android Open Source Project | e09fd9e | 2008-12-17 18:05:43 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2007 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef ANDROID_OVERLAY_H |
| 18 | #define ANDROID_OVERLAY_H |
| 19 | |
| 20 | #include <stdint.h> |
| 21 | #include <sys/types.h> |
| 22 | |
| 23 | #include <utils/Errors.h> |
| 24 | #include <utils/IInterface.h> |
| 25 | #include <utils/RefBase.h> |
| 26 | #include <ui/PixelFormat.h> |
| 27 | |
| 28 | #include <hardware/overlay.h> |
| 29 | |
| 30 | namespace android { |
| 31 | |
| 32 | class IOverlay; |
| 33 | class IMemory; |
| 34 | class IMemoryHeap; |
| 35 | |
| 36 | class Overlay : public virtual RefBase |
| 37 | { |
| 38 | public: |
| 39 | Overlay(overlay_t* overlay, |
| 40 | const sp<IOverlay>& o, const sp<IMemoryHeap>& heap); |
| 41 | |
| 42 | /* destroys this overlay */ |
| 43 | void destroy(); |
| 44 | |
| 45 | /* post/swaps buffers */ |
| 46 | status_t swapBuffers(); |
| 47 | |
| 48 | /* get the HAL handle for this overlay */ |
| 49 | overlay_handle_t const* getHandleRef() const; |
| 50 | |
| 51 | /* returns the offset of the current buffer */ |
| 52 | size_t getBufferOffset() const; |
| 53 | |
| 54 | /* returns a heap to this overlay. this may not be supported. */ |
| 55 | sp<IMemoryHeap> getHeap() const; |
| 56 | |
| 57 | /* get physical informations about the overlay */ |
| 58 | uint32_t getWidth() const; |
| 59 | uint32_t getHeight() const; |
| 60 | int32_t getFormat() const; |
| 61 | int32_t getWidthStride() const; |
| 62 | int32_t getHeightStride() const; |
| 63 | |
| 64 | static sp<Overlay> readFromParcel(const Parcel& data); |
| 65 | static status_t writeToParcel(Parcel* reply, const sp<Overlay>& o); |
| 66 | |
| 67 | private: |
| 68 | Overlay(overlay_handle_t*, const sp<IOverlay>&, const sp<IMemoryHeap>&, |
| 69 | uint32_t w, uint32_t h, int32_t f, uint32_t ws, uint32_t hs); |
| 70 | |
| 71 | virtual ~Overlay(); |
| 72 | |
| 73 | sp<IOverlay> mOverlay; |
| 74 | sp<IMemoryHeap> mHeap; |
| 75 | size_t mCurrentBufferOffset; |
| 76 | overlay_handle_t const *mOverlayHandle; |
| 77 | uint32_t mWidth; |
| 78 | uint32_t mHeight; |
| 79 | int32_t mFormat; |
| 80 | int32_t mWidthStride; |
| 81 | int32_t mHeightStride; |
| 82 | }; |
| 83 | |
| 84 | // ---------------------------------------------------------------------------- |
| 85 | |
| 86 | }; // namespace android |
| 87 | |
| 88 | #endif // ANDROID_OVERLAY_H |