1 files changed, 86 insertions, 0 deletions
diff --git a/libs/hwui/renderthread/RenderThread.cpp b/libs/hwui/renderthread/RenderThread.cpp
new file mode 100644
index 0000000..18d9300
--- /dev/null
+++ b/libs/hwui/renderthread/RenderThread.cpp
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+/*
+ * Copyright (C) 2013 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.
+ */
+
+#define LOG_TAG "RenderThread"
+
+#include "RenderThread.h"
+
+#include <utils/Log.h>
+
+namespace android {
+using namespace uirenderer::renderthread;
+ANDROID_SINGLETON_STATIC_INSTANCE(RenderThread);
+
+namespace uirenderer {
+namespace renderthread {
+
+RenderThread::RenderThread() : Thread(true), Singleton<RenderThread>()
+        , mQueueHead(0), mQueueTail(0) {
+    mLooper = new Looper(false);
+    run("RenderThread");
+}
+
+RenderThread::~RenderThread() {
+}
+
+bool RenderThread::threadLoop() {
+    for (;;) {
+        int result = mLooper->pollAll(-1);
+        if (result == ALOOPER_POLL_ERROR) {
+            // TODO Something?
+            break;
+        }
+        // Process our queue, if we have anything
+        while (RenderTask* task = nextTask()) {
+            task->run();
+            delete task;
+        }
+    }
+
+    return false;
+}
+
+void RenderThread::queue(RenderTask* task) {
+    AutoMutex _lock(mLock);
+    if (mQueueTail) {
+        mQueueTail->mNext = task;
+    } else {
+        mQueueHead = task;
+    }
+    mQueueTail = task;
+    if (mQueueHead == task) {
+        // Only wake if this is the first task
+        mLooper->wake();
+    }
+}
+
+RenderTask* RenderThread::nextTask() {
+    AutoMutex _lock(mLock);
+    RenderTask* ret = mQueueHead;
+    if (ret) {
+        if (mQueueTail == mQueueHead) {
+            mQueueTail = mQueueHead = 0;
+        } else {
+            mQueueHead = ret->mNext;
+        }
+        ret->mNext = 0;
+    }
+    return ret;
+}
+
+} /* namespace renderthread */
+} /* namespace uirenderer */
+} /* namespace android */