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_GUI_SURFACE_CONTROL_H 18 #define ANDROID_GUI_SURFACE_CONTROL_H 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 23 #include <utils/KeyedVector.h> 24 #include <utils/RefBase.h> 25 #include <utils/threads.h> 26 27 #include <ui/PixelFormat.h> 28 #include <ui/Region.h> 29 30 #include <gui/ISurfaceComposerClient.h> 31 32 namespace android { 33 34 // --------------------------------------------------------------------------- 35 36 class IGraphicBufferProducer; 37 class Surface; 38 class SurfaceComposerClient; 39 40 // --------------------------------------------------------------------------- 41 42 class SurfaceControl : public RefBase 43 { 44 public: isValid(const sp<SurfaceControl> & surface)45 static bool isValid(const sp<SurfaceControl>& surface) { 46 return (surface != 0) && surface->isValid(); 47 } 48 isValid()49 bool isValid() { 50 return mHandle!=0 && mClient!=0; 51 } 52 53 static bool isSameSurface( 54 const sp<SurfaceControl>& lhs, const sp<SurfaceControl>& rhs); 55 56 // release surface data from java 57 void clear(); 58 59 status_t setLayerStack(int32_t layerStack); 60 status_t setLayer(int32_t layer); 61 status_t setPosition(float x, float y); 62 status_t setSize(uint32_t w, uint32_t h); 63 status_t hide(); 64 status_t show(); 65 status_t setFlags(uint32_t flags, uint32_t mask); 66 status_t setTransparentRegionHint(const Region& transparent); 67 status_t setAlpha(float alpha=1.0f); 68 status_t setMatrix(float dsdx, float dtdx, float dsdy, float dtdy); 69 status_t setCrop(const Rect& crop); 70 71 static status_t writeSurfaceToParcel( 72 const sp<SurfaceControl>& control, Parcel* parcel); 73 74 sp<Surface> getSurface() const; 75 76 private: 77 // can't be copied 78 SurfaceControl& operator = (SurfaceControl& rhs); 79 SurfaceControl(const SurfaceControl& rhs); 80 81 friend class SurfaceComposerClient; 82 friend class Surface; 83 84 SurfaceControl( 85 const sp<SurfaceComposerClient>& client, 86 const sp<IBinder>& handle, 87 const sp<IGraphicBufferProducer>& gbp); 88 89 ~SurfaceControl(); 90 91 status_t validate() const; 92 void destroy(); 93 94 sp<SurfaceComposerClient> mClient; 95 sp<IBinder> mHandle; 96 sp<IGraphicBufferProducer> mGraphicBufferProducer; 97 mutable Mutex mLock; 98 mutable sp<Surface> mSurfaceData; 99 }; 100 101 }; // namespace android 102 103 #endif // ANDROID_GUI_SURFACE_CONTROL_H 104