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