1 /* 2 * Copyright (C) 2010 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_SF_HWCOMPOSER_H 18 #define ANDROID_SF_HWCOMPOSER_H 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 23 #include <EGL/egl.h> 24 25 #include <hardware/hwcomposer.h> 26 27 #include <utils/StrongPointer.h> 28 #include <utils/Vector.h> 29 30 namespace android { 31 // --------------------------------------------------------------------------- 32 33 class String8; 34 class SurfaceFlinger; 35 class LayerBase; 36 37 class HWComposer 38 { 39 public: 40 41 HWComposer(const sp<SurfaceFlinger>& flinger); 42 ~HWComposer(); 43 44 status_t initCheck() const; 45 46 // tells the HAL what the framebuffer is 47 void setFrameBuffer(EGLDisplay dpy, EGLSurface sur); 48 49 // create a work list for numLayers layer 50 status_t createWorkList(size_t numLayers); 51 52 // Asks the HAL what it can do 53 status_t prepare() const; 54 55 // disable hwc until next createWorkList 56 status_t disable(); 57 58 // commits the list 59 status_t commit() const; 60 61 // release hardware resources 62 status_t release() const; 63 64 size_t getNumLayers() const; 65 hwc_layer_t* getLayers() const; 66 67 // updated in preapre() 68 size_t getLayerCount(int type) const; 69 70 // for debugging 71 void dump(String8& out, char* scratch, size_t SIZE, 72 const Vector< sp<LayerBase> >& visibleLayersSortedByZ) const; 73 74 private: 75 struct cb_context { 76 hwc_procs_t procs; 77 HWComposer* hwc; 78 }; 79 static void hook_invalidate(struct hwc_procs* procs); 80 void invalidate(); 81 82 sp<SurfaceFlinger> mFlinger; 83 hw_module_t const* mModule; 84 hwc_composer_device_t* mHwc; 85 hwc_layer_list_t* mList; 86 size_t mCapacity; 87 mutable size_t mNumOVLayers; 88 mutable size_t mNumFBLayers; 89 hwc_display_t mDpy; 90 hwc_surface_t mSur; 91 cb_context mCBContext; 92 }; 93 94 95 // --------------------------------------------------------------------------- 96 }; // namespace android 97 98 #endif // ANDROID_SF_HWCOMPOSER_H 99