1 files changed, 60 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/TraceCommandWriter.java b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/TraceCommandWriter.java
new file mode 100644
index 000000000..dd5cd3c1e
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.gldebugger/src/com/android/ide/eclipse/gltrace/TraceCommandWriter.java
@@ -0,0 +1,60 @@
+/*
+ * 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
+        }
+    }
+}