RenderThread work
Hacky prototype needs a private API to enable
Change-Id: I21e0ddf3cdbd38a4036354b5d6012449e1a34849
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
@@ -0,0 +1,86 @@
+/*
+ * 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 */