| /* |
| * Copyright (C) 2019 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. |
| */ |
| |
| package com.android.systemui.glwallpaper; |
| |
| import android.util.Size; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| |
| /** |
| * A renderer which is responsible for making OpenGL calls to render a frame. |
| */ |
| public interface GLWallpaperRenderer { |
| |
| /** |
| * Called when the surface is created or recreated. |
| */ |
| void onSurfaceCreated(); |
| |
| /** |
| * Called when the surface changed size. |
| * @param width surface width. |
| * @param height surface height. |
| */ |
| void onSurfaceChanged(int width, int height); |
| |
| /** |
| * Called to draw the current frame. |
| */ |
| void onDrawFrame(); |
| |
| /** |
| * Notify ambient mode is changed. |
| * @param inAmbientMode true if in ambient mode. |
| * @param duration duration of transition. |
| */ |
| void updateAmbientMode(boolean inAmbientMode, long duration); |
| |
| /** |
| * Notify the wallpaper offsets changed. |
| * @param xOffset offset along x axis. |
| * @param yOffset offset along y axis. |
| */ |
| void updateOffsets(float xOffset, float yOffset); |
| |
| /** |
| * Ask renderer to report the surface size it needs. |
| */ |
| Size reportSurfaceSize(); |
| |
| /** |
| * Called when no need to render any more. |
| */ |
| void finish(); |
| |
| /** |
| * Called to dump current state. |
| * @param prefix prefix. |
| * @param fd fd. |
| * @param out out. |
| * @param args args. |
| */ |
| void dump(String prefix, FileDescriptor fd, PrintWriter out, String[] args); |
| |
| /** |
| * A proxy which owns surface holder. |
| */ |
| interface SurfaceProxy { |
| |
| /** |
| * Ask proxy to start rendering frame to surface. |
| */ |
| void requestRender(); |
| |
| /** |
| * Ask proxy to prepare render context. |
| */ |
| void preRender(); |
| |
| /** |
| * Ask proxy to destroy render context. |
| */ |
| void postRender(); |
| } |
| } |