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_FRAMEBUFFER_NATIVE_WINDOW_H 18 #define ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 23 #include <EGL/egl.h> 24 25 #include <utils/threads.h> 26 #include <utils/String8.h> 27 #include <ui/Rect.h> 28 29 #include <pixelflinger/pixelflinger.h> 30 31 #include <ui/egl/android_natives.h> 32 33 #define NUM_FRAME_BUFFERS 2 34 35 extern "C" EGLNativeWindowType android_createDisplaySurface(void); 36 37 // --------------------------------------------------------------------------- 38 namespace android { 39 // --------------------------------------------------------------------------- 40 41 class Surface; 42 class NativeBuffer; 43 44 // --------------------------------------------------------------------------- 45 46 class FramebufferNativeWindow 47 : public EGLNativeBase< 48 ANativeWindow, 49 FramebufferNativeWindow, 50 LightRefBase<FramebufferNativeWindow> > 51 { 52 public: 53 FramebufferNativeWindow(); 54 55 framebuffer_device_t const * getDevice() const { return fbDev; } 56 57 bool isUpdateOnDemand() const { return mUpdateOnDemand; } 58 status_t setUpdateRectangle(const Rect& updateRect); 59 status_t compositionComplete(); 60 61 void dump(String8& result); 62 63 // for debugging only 64 int getCurrentBufferIndex() const; 65 66 private: 67 friend class LightRefBase<FramebufferNativeWindow>; 68 ~FramebufferNativeWindow(); // this class cannot be overloaded 69 static int setSwapInterval(ANativeWindow* window, int interval); 70 static int dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer); 71 static int lockBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer); 72 static int queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer); 73 static int query(const ANativeWindow* window, int what, int* value); 74 static int perform(ANativeWindow* window, int operation, ...); 75 76 framebuffer_device_t* fbDev; 77 alloc_device_t* grDev; 78 79 sp<NativeBuffer> buffers[NUM_FRAME_BUFFERS]; 80 sp<NativeBuffer> front; 81 82 mutable Mutex mutex; 83 Condition mCondition; 84 int32_t mNumBuffers; 85 int32_t mNumFreeBuffers; 86 int32_t mBufferHead; 87 int32_t mCurrentBufferIndex; 88 bool mUpdateOnDemand; 89 }; 90 91 // --------------------------------------------------------------------------- 92 }; // namespace android 93 // --------------------------------------------------------------------------- 94 95 #endif // ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H 96 97
