Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 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 | |
Mathias Agopian | c7d14e2 | 2011-08-01 16:32:21 -0700 | [diff] [blame] | 27 | #include <utils/StrongPointer.h> |
Mathias Agopian | 22da60c | 2011-09-09 00:49:11 -0700 | [diff] [blame] | 28 | #include <utils/Vector.h> |
Mathias Agopian | c7d14e2 | 2011-08-01 16:32:21 -0700 | [diff] [blame] | 29 | |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 30 | extern "C" int clock_nanosleep(clockid_t clock_id, int flags, |
| 31 | const struct timespec *request, |
| 32 | struct timespec *remain); |
| 33 | |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 34 | namespace android { |
| 35 | // --------------------------------------------------------------------------- |
| 36 | |
Mathias Agopian | 8372785 | 2010-09-23 18:13:21 -0700 | [diff] [blame] | 37 | class String8; |
Mathias Agopian | c7d14e2 | 2011-08-01 16:32:21 -0700 | [diff] [blame] | 38 | class SurfaceFlinger; |
Mathias Agopian | 22da60c | 2011-09-09 00:49:11 -0700 | [diff] [blame] | 39 | class LayerBase; |
Mathias Agopian | 8372785 | 2010-09-23 18:13:21 -0700 | [diff] [blame] | 40 | |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 41 | class HWComposer |
| 42 | { |
| 43 | public: |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 44 | class EventHandler { |
| 45 | friend class HWComposer; |
| 46 | virtual void onVSyncReceived(int dpy, nsecs_t timestamp) = 0; |
| 47 | protected: |
| 48 | virtual ~EventHandler() {} |
| 49 | }; |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 50 | |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 51 | HWComposer(const sp<SurfaceFlinger>& flinger, |
| 52 | EventHandler& handler, nsecs_t refreshPeriod); |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 53 | ~HWComposer(); |
| 54 | |
| 55 | status_t initCheck() const; |
| 56 | |
| 57 | // tells the HAL what the framebuffer is |
| 58 | void setFrameBuffer(EGLDisplay dpy, EGLSurface sur); |
| 59 | |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 60 | // create a work list for numLayers layer. sets HWC_GEOMETRY_CHANGED. |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 61 | status_t createWorkList(size_t numLayers); |
| 62 | |
| 63 | // Asks the HAL what it can do |
| 64 | status_t prepare() const; |
| 65 | |
Mathias Agopian | 7ee4cd5 | 2011-09-02 12:22:39 -0700 | [diff] [blame] | 66 | // disable hwc until next createWorkList |
| 67 | status_t disable(); |
| 68 | |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 69 | // commits the list |
| 70 | status_t commit() const; |
| 71 | |
Antti Hatala | f5f2712 | 2010-09-09 02:33:05 -0700 | [diff] [blame] | 72 | // release hardware resources |
| 73 | status_t release() const; |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 74 | |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 75 | // get the layer array created by createWorkList() |
Mathias Agopian | 4572177 | 2010-08-12 15:03:26 -0700 | [diff] [blame] | 76 | size_t getNumLayers() const; |
| 77 | hwc_layer_t* getLayers() const; |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 78 | |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 79 | // get number of layers of the given type as updated in prepare(). |
| 80 | // type is HWC_OVERLAY or HWC_FRAMEBUFFER |
Mathias Agopian | 9c6e297 | 2011-09-20 17:21:56 -0700 | [diff] [blame] | 81 | size_t getLayerCount(int type) const; |
| 82 | |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 83 | // Events handling --------------------------------------------------------- |
| 84 | |
| 85 | enum { |
| 86 | EVENT_VSYNC = HWC_EVENT_VSYNC |
| 87 | }; |
| 88 | |
Mathias Agopian | 03e4072 | 2012-04-26 16:11:59 -0700 | [diff] [blame^] | 89 | void eventControl(int event, int enabled); |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 90 | |
| 91 | // this class is only used to fake the VSync event on systems that don't |
| 92 | // have it. |
| 93 | class VSyncThread : public Thread { |
| 94 | HWComposer& mHwc; |
| 95 | mutable Mutex mLock; |
| 96 | Condition mCondition; |
| 97 | bool mEnabled; |
| 98 | mutable nsecs_t mNextFakeVSync; |
| 99 | nsecs_t mRefreshPeriod; |
Mathias Agopian | 2965b26 | 2012-04-08 15:13:32 -0700 | [diff] [blame] | 100 | virtual void onFirstRef(); |
| 101 | virtual bool threadLoop(); |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 102 | public: |
Mathias Agopian | 2965b26 | 2012-04-08 15:13:32 -0700 | [diff] [blame] | 103 | VSyncThread(HWComposer& hwc); |
| 104 | void setEnabled(bool enabled); |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 105 | }; |
| 106 | |
| 107 | friend class VSyncThread; |
| 108 | |
| 109 | // for debugging ---------------------------------------------------------- |
Mathias Agopian | 22da60c | 2011-09-09 00:49:11 -0700 | [diff] [blame] | 110 | void dump(String8& out, char* scratch, size_t SIZE, |
| 111 | const Vector< sp<LayerBase> >& visibleLayersSortedByZ) const; |
Mathias Agopian | 8372785 | 2010-09-23 18:13:21 -0700 | [diff] [blame] | 112 | |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 113 | private: |
Mathias Agopian | 31d2843 | 2012-04-03 16:31:39 -0700 | [diff] [blame] | 114 | |
| 115 | struct callbacks : public hwc_procs_t { |
| 116 | // these are here to facilitate the transition when adding |
| 117 | // new callbacks (an implementation can check for NULL before |
| 118 | // calling a new callback). |
| 119 | void (*zero[4])(void); |
| 120 | }; |
| 121 | |
Mathias Agopian | c7d14e2 | 2011-08-01 16:32:21 -0700 | [diff] [blame] | 122 | struct cb_context { |
Mathias Agopian | 31d2843 | 2012-04-03 16:31:39 -0700 | [diff] [blame] | 123 | callbacks procs; |
Mathias Agopian | c7d14e2 | 2011-08-01 16:32:21 -0700 | [diff] [blame] | 124 | HWComposer* hwc; |
| 125 | }; |
Mathias Agopian | 31d2843 | 2012-04-03 16:31:39 -0700 | [diff] [blame] | 126 | |
Mathias Agopian | c7d14e2 | 2011-08-01 16:32:21 -0700 | [diff] [blame] | 127 | static void hook_invalidate(struct hwc_procs* procs); |
Mathias Agopian | 31d2843 | 2012-04-03 16:31:39 -0700 | [diff] [blame] | 128 | static void hook_vsync(struct hwc_procs* procs, int dpy, int64_t timestamp); |
| 129 | |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 130 | inline void invalidate(); |
| 131 | inline void vsync(int dpy, int64_t timestamp); |
Mathias Agopian | c7d14e2 | 2011-08-01 16:32:21 -0700 | [diff] [blame] | 132 | |
| 133 | sp<SurfaceFlinger> mFlinger; |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 134 | hw_module_t const* mModule; |
| 135 | hwc_composer_device_t* mHwc; |
| 136 | hwc_layer_list_t* mList; |
Mathias Agopian | 4572177 | 2010-08-12 15:03:26 -0700 | [diff] [blame] | 137 | size_t mCapacity; |
Mathias Agopian | 9c6e297 | 2011-09-20 17:21:56 -0700 | [diff] [blame] | 138 | mutable size_t mNumOVLayers; |
| 139 | mutable size_t mNumFBLayers; |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 140 | hwc_display_t mDpy; |
| 141 | hwc_surface_t mSur; |
Mathias Agopian | c7d14e2 | 2011-08-01 16:32:21 -0700 | [diff] [blame] | 142 | cb_context mCBContext; |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 143 | EventHandler& mEventHandler; |
| 144 | nsecs_t mRefreshPeriod; |
Mathias Agopian | 2965b26 | 2012-04-08 15:13:32 -0700 | [diff] [blame] | 145 | size_t mVSyncCount; |
Mathias Agopian | 3eb38cb | 2012-04-03 22:09:52 -0700 | [diff] [blame] | 146 | sp<VSyncThread> mVSyncThread; |
Mathias Agopian | e2c4f4e | 2012-04-10 18:25:31 -0700 | [diff] [blame] | 147 | bool mDebugForceFakeVSync; |
Mathias Agopian | a350ff9 | 2010-08-10 17:14:02 -0700 | [diff] [blame] | 148 | }; |
| 149 | |
| 150 | |
| 151 | // --------------------------------------------------------------------------- |
| 152 | }; // namespace android |
| 153 | |
| 154 | #endif // ANDROID_SF_HWCOMPOSER_H |