1 // Copyright (C) 2020 The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #pragma once 16 17 #include "host-common/GoldfishMediaDefs.h" 18 #include "host-common/opengles.h" 19 20 #include <stddef.h> 21 #include <stdint.h> 22 #include <list> 23 #include <map> 24 25 namespace android { 26 namespace emulation { 27 28 // This is a helper class to render decoded frames 29 // to host color buffer 30 class MediaTexturePool { 31 public: 32 // for now, there is only NV12 33 struct TextureFrame { 34 uint32_t Ytex; 35 uint32_t UVtex; 36 }; 37 38 // get a TextureFrame structure to hold decoded frame 39 TextureFrame getTextureFrame(int w, int h); 40 41 void saveDecodedFrameToTexture(TextureFrame frame, 42 void* privData, 43 void* func); 44 45 // put back a used TextureFrame so it can be reused again 46 // later 47 void putTextureFrame(TextureFrame frame); 48 49 void cleanUpTextures(); 50 51 private: 52 using TexSizes = std::pair<int, int>; 53 using TexFrame = std::pair<uint32_t, uint32_t>; 54 using Pool = std::list<TextureFrame>; 55 using PoolHandle = std::list<TextureFrame>*; 56 std::map<TexSizes, PoolHandle> m_WH_to_PoolHandle; 57 std::map<TexFrame, TexSizes> m_Frame_to_WH; 58 std::map<TexFrame, PoolHandle> m_Frame_to_PoolHandle; 59 60 void deleteTextures(TextureFrame frame); 61 62 int m_id = 0; 63 64 public: 65 MediaTexturePool(); 66 ~MediaTexturePool(); 67 68 private: 69 AndroidVirtioGpuOps* mVirtioGpuOps = nullptr; 70 }; 71 72 } // namespace emulation 73 } // namespace android 74