[Change]
开始USB摄像头的功能集成，还无法获取usb连接广播需要调试 Signed-off-by: donghongyu <donghongyu@zhidaoauto.com>
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donghongyu
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package com.serenegiant.glutils;
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/*
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* libcommon
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* utility/helper classes for myself
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*
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* Copyright (c) 2014-2018 saki t_saki@serenegiant.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import android.os.Build;
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/**
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* EGLレンダリングコンテキストを生成＆使用するためのヘルパークラス
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*/
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public abstract class EGLBase {
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public static final Object EGL_LOCK = new Object();
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public static final int EGL_RECORDABLE_ANDROID = 0x3142;
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public static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098;
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public static final int EGL_OPENGL_ES2_BIT = 4;
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public static final int EGL_OPENGL_ES3_BIT_KHR = 0x0040;
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// public static final int EGL_SWAP_BEHAVIOR_PRESERVED_BIT = 0x0400;
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/**
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* EGL生成のヘルパーメソッド, 環境に応じてEGLBase10またはEGLBase14を生成する
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* maxClientVersion=3, ステンシルバッファなし
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* @param sharedContext
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* @param withDepthBuffer
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* @param isRecordable
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* @return
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*/
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public static EGLBase createFrom(final IContext sharedContext,
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final boolean withDepthBuffer, final boolean isRecordable) {
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return createFrom(3, sharedContext, withDepthBuffer, 0, isRecordable);
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}
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/**
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* EGL生成のヘルパーメソッド, 環境に応じてEGLBase10またはEGLBase14を生成する
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* maxClientVersion=3
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* @param sharedContext
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* @param withDepthBuffer
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* @param stencilBits
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* @param isRecordable
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* @return
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*/
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public static EGLBase createFrom(final IContext sharedContext,
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final boolean withDepthBuffer, final int stencilBits, final boolean isRecordable) {
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return createFrom(3, sharedContext,
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withDepthBuffer, stencilBits, isRecordable);
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}
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/**
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* EGL生成のヘルパーメソッド, 環境に応じてEGLBase10またはEGLBase14を生成する
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* @param maxClientVersion
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* @param sharedContext
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* @param withDepthBuffer trueなら16ビットのデプスバッファ有り, falseならデプスバッファなし
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* @param stencilBits 0以下ならステンシルバッファなし
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* @param isRecordable
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* @return
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*/
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public static EGLBase createFrom(final int maxClientVersion,
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final IContext sharedContext, final boolean withDepthBuffer,
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final int stencilBits, final boolean isRecordable) {
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if (isEGL14Supported() && ((sharedContext == null)
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|| (sharedContext instanceof EGLBase14.Context))) {
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return new EGLBase14(maxClientVersion,
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(EGLBase14.Context)sharedContext,
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withDepthBuffer, stencilBits, isRecordable);
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} else {
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return new EGLBase10(maxClientVersion,
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(EGLBase10.Context)sharedContext,
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withDepthBuffer, stencilBits, isRecordable);
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}
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}
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/**
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* EGLレンダリングコンテキストのホルダークラス
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*/
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public static abstract class IContext {
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public abstract long getNativeHandle();
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public abstract Object getEGLContext();
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}
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/**
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* EGLコンフィグのホルダークラス
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*/
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public static abstract class IConfig {
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}
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/**
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* EGLレンダリングコンテキストに紐付ける描画オブジェクト
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*/
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public interface IEglSurface {
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public void makeCurrent();
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public void swap();
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public IContext getContext();
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/**
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* swap with presentation time[ns]
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* only works well now when using EGLBase14
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* @param presentationTimeNs
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*/
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public void swap(final long presentationTimeNs);
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public void release();
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public boolean isValid();
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}
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public static boolean isEGL14Supported() {
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return (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2);
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}
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/**
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* 関連するリソースを破棄する
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*/
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public abstract void release();
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/**
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* GLESに文字列を問い合わせる
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* @param what
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* @return
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*/
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public abstract String queryString(final int what);
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/**
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* GLESバージョンを取得する
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* @return 1, 2または3
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*/
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public abstract int getGlVersion();
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/**
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* EGLレンダリングコンテキストを取得する
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* このEGLBaseインスタンスを使って生成したEglSurfaceをmakeCurrentした状態で
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* eglGetCurrentContextを呼び出すのと一緒
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* @return
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*/
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public abstract IContext getContext();
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/**
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* EGLコンフィグを取得する
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* @return
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*/
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public abstract IConfig getConfig();
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/**
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* 指定したSurfaceからEglSurfaceを生成する
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* 生成したEglSurfaceをmakeCurrentした状態で戻る
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* @param nativeWindow Surface/SurfaceTexture/SurfaceHolder
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* @return
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*/
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public abstract IEglSurface createFromSurface(final Object nativeWindow);
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/**
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* 指定した大きさのオフスクリーンEglSurfaceを生成する
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* 生成したEglSurfaceをmakeCurrentした状態で戻る
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* @param width PBufferオフスクリーンのサイズ(0以下はだめ)
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* @param height
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* @return
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*/
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public abstract IEglSurface createOffscreen(final int width, final int height);
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/**
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* EGLレンダリングコンテキストとスレッドの紐付けを解除する
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*/
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public abstract void makeDefault();
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/**
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* eglWaitGLとeglWaitNativeを呼ぶ
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*
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* eglWaitGL: コマンドキュー内のコマンドをすべて転送する, GLES20.glFinish()と同様の効果
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* eglWaitNative: GPU側の描画処理が終了するまで実行をブロックする
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*/
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public abstract void sync();
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}
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