2 * Copyright 2017 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #ifndef ANDROID_GUI_GRAPHICS_ENV_H
18 #define ANDROID_GUI_GRAPHICS_ENV_H 1
22 struct android_namespace_t;
28 static GraphicsEnv& getInstance();
30 // Set a search path for loading graphics drivers. The path is a list of
31 // directories separated by ':'. A directory can be contained in a zip file
32 // (drivers must be stored uncompressed and page aligned); such elements
33 // in the search path must have a '!' after the zip filename, e.g.
34 // /data/app/com.example.driver/base.apk!/lib/arm64-v8a
35 void setDriverPath(const std::string path);
36 android_namespace_t* getDriverNamespace();
39 GraphicsEnv() = default;
40 std::string mDriverPath;
41 android_namespace_t* mDriverNamespace = nullptr;
44 } // namespace android
47 * Export an un-mangled function that just does
48 * return android::GraphicsEnv::getInstance().getDriverNamespace();
49 * This allows libEGL to get the function pointer via dlsym, since it can't
50 * directly link against libgui. In a future release, we'll fix this so that
51 * libgui does not depend on graphics API libraries, and libEGL can link
52 * against it. The current dependencies from libgui -> libEGL are:
53 * - the GLConsumer class, which should be moved to its own library
54 * - the EGLsyncKHR synchronization in BufferQueue, which is deprecated and
55 * will be removed soon.
57 extern "C" android_namespace_t* android_getDriverNamespace();
59 #endif // ANDROID_GUI_GRAPHICS_ENV_H