/* * Copyright (C) 2012 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef ANDROID_SURFACEFLINGERCONSUMER_H #define ANDROID_SURFACEFLINGERCONSUMER_H #include namespace android { // ---------------------------------------------------------------------------- /* * This is a thin wrapper around GLConsumer. */ class SurfaceFlingerConsumer : public GLConsumer { public: SurfaceFlingerConsumer(const sp& bq, uint32_t tex) : GLConsumer(bq, tex, GLConsumer::TEXTURE_EXTERNAL, false) {} class BufferRejecter { friend class SurfaceFlingerConsumer; virtual bool reject(const sp& buf, const IGraphicBufferConsumer::BufferItem& item) = 0; protected: virtual ~BufferRejecter() { } }; virtual status_t acquireBufferLocked(BufferQueue::BufferItem *item, nsecs_t presentWhen); // This version of updateTexImage() takes a functor that may be used to // reject the newly acquired buffer. Unlike the GLConsumer version, // this does not guarantee that the buffer has been bound to the GL // texture. status_t updateTexImage(BufferRejecter* rejecter); // See GLConsumer::bindTextureImageLocked(). status_t bindTextureImage(); // must be called from SF main thread bool getTransformToDisplayInverse() const; private: nsecs_t computeExpectedPresent(); // Indicates this buffer must be transformed by the inverse transform of the screen // it is displayed onto. This is applied after GLConsumer::mCurrentTransform. // This must be set/read from SurfaceFlinger's main thread. bool mTransformToDisplayInverse; }; // ---------------------------------------------------------------------------- }; // namespace android #endif // ANDROID_SURFACEFLINGERCONSUMER_H