1 /* 2 * Copyright (C) 2018 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_EGL_LAYERS_H 18 #define ANDROID_EGL_LAYERS_H 19 20 #include <string> 21 #include <unordered_map> 22 #include <vector> 23 24 #include <EGL/egldefs.h> 25 26 #include "egl_platform_entries.h" 27 28 typedef __eglMustCastToProperFunctionPointerType EGLFuncPointer; 29 30 namespace android { 31 32 class LayerLoader { 33 public: 34 static LayerLoader& getInstance(); 35 ~LayerLoader(){}; 36 37 typedef void* (*PFNEGLGETNEXTLAYERPROCADDRESSPROC)(void*, const char*); 38 typedef EGLFuncPointer (*layer_init_func)( 39 const void* layer_id, PFNEGLGETNEXTLAYERPROCADDRESSPROC get_next_layer_proc_address); 40 typedef EGLFuncPointer (*layer_setup_func)(const char* name, EGLFuncPointer next); 41 42 void LoadLayers(); 43 void InitLayers(egl_connection_t*); 44 void LayerPlatformEntries(layer_setup_func layer_setup, EGLFuncPointer*, char const* const*); 45 void LayerDriverEntries(layer_setup_func layer_setup, EGLFuncPointer*, char const* const*); 46 bool Initialized(); 47 std::string GetDebugLayers(); 48 49 EGLFuncPointer GetGpaNext(unsigned i); 50 EGLFuncPointer ApplyLayer(layer_setup_func layer_setup, const char* name, EGLFuncPointer next); 51 EGLFuncPointer ApplyLayers(const char* name, EGLFuncPointer next); 52 53 std::vector<layer_init_func> layer_init_; 54 std::vector<layer_setup_func> layer_setup_; 55 56 private: 57 LayerLoader() : layers_loaded_(false), initialized_(false), current_layer_(0){}; 58 bool layers_loaded_; 59 bool initialized_; 60 unsigned current_layer_; 61 }; 62 63 }; // namespace android 64 65 #endif // ANDROID_EGL_LAYERS_H 66
