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Commit 90b25ed5 authored by Jesse Hall's avatar Jesse Hall
Browse files

Add GraphicsEnv to libgui 

This singleton class stores information provided by the framework and
makes it available to EGL/GLES/Vulkan loaders. It will eventually
replace vulkan::LoaderData and possibly the egl blob cache directory
storage.

Bug: 33531483
Test: various apps w/ and w/o driver package installed
Change-Id: If8b84fd38428f1cc9fcee8ffc25eb90cd87cedb4
parent 91190781

include/gui/GraphicsEnv.h

0 → 100644
+42 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2017 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_GUI_GRAPHICS_ENV_H

#define ANDROID_GUI_GRAPHICS_ENV_H 1



#include <string>



namespace android {



class GraphicsEnv {

public:

    static GraphicsEnv& getInstance();



    // Set a search path for loading graphics drivers. The path is a list of

    // directories separated by ':'. A directory can be contained in a zip file

    // (drivers must be stored uncompressed and page aligned); such elements

    // in the search path must have a '!' after the zip filename, e.g.

    //     /data/app/com.example.driver/base.apk!/lib/arm64-v8a

    void setDriverPath(const std::string path);



private:

    GraphicsEnv() = default;

    std::string mDriverPath;

};



} // namespace android



#endif // ANDROID_GUI_GRAPHICS_ENV_H

libs/gui/Android.bp

+1 −0
Original line number Diff line number Diff line
@@ -77,6 +77,7 @@ cc_library_shared { 
        "FrameTimestamps.cpp",

        "GLConsumer.cpp",

        "GraphicBufferAlloc.cpp",

        "GraphicsEnv.cpp",

        "GuiConfig.cpp",

        "IDisplayEventConnection.cpp",

        "IGraphicBufferAlloc.cpp",

libs/gui/GraphicsEnv.cpp

0 → 100644
+40 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2017 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.

 */



//#define LOG_NDEBUG 1

#define LOG_TAG "GraphicsEnv"

#include <gui/GraphicsEnv.h>



#include <log/log.h>



namespace android {



/*static*/ GraphicsEnv& GraphicsEnv::getInstance() {

    static GraphicsEnv env;

    return env;

}



void GraphicsEnv::setDriverPath(const std::string path) {

    if (!mDriverPath.empty()) {

        ALOGV("ignoring attempt to change driver path from '%s' to '%s'",

                mDriverPath.c_str(), path.c_str());

        return;

    }

    ALOGV("setting driver path to '%s'", path.c_str());

    mDriverPath = path;

}



} // namespace android