[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>

libraries/map-usbcamera/src/main/java/com/serenegiant/glutils/RendererHolder.java

@@ -0,0 +1,79 @@
+package com.serenegiant.glutils;
+/*
+ * libcommon
+ * utility/helper classes for myself
+ *
+ * Copyright (c) 2014-2018 saki t_saki@serenegiant.com
+ *
+ * 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.
+*/
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * Hold shared texture that has camera frame and draw them to registered surface if needs<br>
+ */
+public class RendererHolder extends AbstractRendererHolder {
+//	private static final boolean DEBUG = false;	// FIXME 実働時はfalseにすること
+	private static final String TAG = RendererHolder.class.getSimpleName();
+
+	public RendererHolder(final int width, final int height,
+		@Nullable final RenderHolderCallback callback) {
+
+		this(width, height,
+			3, null, EglTask.EGL_FLAG_RECORDABLE,
+			callback);
+	}
+
+	public RendererHolder(final int width, final int height,
+		final int maxClientVersion, final EGLBase.IContext sharedContext, final int flags,
+		@Nullable final RenderHolderCallback callback) {
+
+		super(width, height,
+			maxClientVersion, sharedContext, flags,
+			callback);
+	}
+
+	@NonNull
+	protected RendererTask createRendererTask(final int width, final int height,
+		final int maxClientVersion, final EGLBase.IContext sharedContext, final int flags) {
+
+		return new MyRendererTask(this, width, height,
+			maxClientVersion, sharedContext, flags);
+	}
+	
+//================================================================================
+// 実装
+//================================================================================
+	/**
+	 * ワーカースレッド上でOpenGL|ESを用いてマスター映像を分配描画するためのインナークラス
+	 */
+	protected static final class MyRendererTask extends RendererTask {
+
+		public MyRendererTask(final RendererHolder parent,
+			final int width, final int height) {
+
+			super(parent, width, height);
+		}
+
+		public MyRendererTask(@NonNull final AbstractRendererHolder parent,
+			final int width, final int height,
+			final int maxClientVersion,
+			final EGLBase.IContext sharedContext, final int flags) {
+
+			super(parent, width, height, maxClientVersion, sharedContext, flags);
+		}
+	}
+
+}