| /* |
| * Copyright (C) 2011 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.ide.eclipse.gltrace; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| /** |
| * Write trace control options to the trace backend. |
| * Currently, the number of options is limited, so all the options are packed into a |
| * single integer. Any changes to this protocol have to be updated on the device as well. |
| */ |
| public class TraceCommandWriter { |
| private static final int CMD_SIZE = 4; |
| |
| private static final int READ_FB_ON_EGLSWAP_BIT = 0; |
| private static final int READ_FB_ON_GLDRAW_BIT = 1; |
| private static final int READ_TEXTURE_DATA_ON_GLTEXIMAGE_BIT = 2; |
| |
| private final DataOutputStream mStream;; |
| |
| public TraceCommandWriter(DataOutputStream traceCommandStream) { |
| mStream = traceCommandStream; |
| } |
| |
| public void setTraceOptions(boolean readFbOnEglSwap, boolean readFbOnGlDraw, |
| boolean readTextureOnGlTexImage) throws IOException { |
| int eglSwap = readFbOnEglSwap ? (1 << READ_FB_ON_EGLSWAP_BIT) : 0; |
| int glDraw = readFbOnGlDraw ? (1 << READ_FB_ON_GLDRAW_BIT) : 0; |
| int tex = readTextureOnGlTexImage ? ( 1 << READ_TEXTURE_DATA_ON_GLTEXIMAGE_BIT) : 0; |
| |
| int cmd = eglSwap | glDraw | tex; |
| |
| mStream.writeInt(CMD_SIZE); |
| mStream.writeInt(cmd); |
| mStream.flush(); |
| } |
| |
| public void close() { |
| try { |
| mStream.close(); |
| } catch (IOException e) { |
| // ignore exception while closing stream |
| } |
| } |
| } |