start new headers
Change-Id: I950e5db76ecd3afbc7ea2b3ec792e4cb242f57bf
cpp
diff --git a/libs/rs/RenderScript.cpp b/libs/rs/RenderScript.cpp
new file mode 100644
index 0000000..58d1ce1
--- /dev/null
+++ b/libs/rs/RenderScript.cpp
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2008-2012 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.
+ */
+
+#include <utils/Log.h>
+#include <malloc.h>
+#include <string.h>
+
+#include "RenderScript.h"
+
+bool RenderScript::gInitialized = false;
+pthread_mutex_t RenderScript::gInitMutex = PTHREAD_MUTEX_INITIALIZER;
+
+RenderScript::RenderScript() {
+ mDev = NULL;
+ mContext = NULL;
+ mErrorFunc = NULL;
+ mMessageFunc = NULL;
+ mMessageRun = false;
+
+ memset(&mElements, 0, sizeof(mElements));
+}
+
+RenderScript::~RenderScript() {
+ mMessageRun = false;
+
+ rsContextDeinitToClient(mContext);
+
+ void *res = NULL;
+ int status = pthread_join(mMessageThreadId, &res);
+
+ rsContextDestroy(mContext);
+ mContext = NULL;
+ rsDeviceDestroy(mDev);
+ mDev = NULL;
+}
+
+bool RenderScript::init(int targetApi) {
+ mDev = rsDeviceCreate();
+ if (mDev == 0) {
+ ALOGE("Device creation failed");
+ return false;
+ }
+
+ mContext = rsContextCreate(mDev, 0, targetApi);
+ if (mContext == 0) {
+ ALOGE("Context creation failed");
+ return false;
+ }
+
+
+ pid_t mNativeMessageThreadId;
+
+ int status = pthread_create(&mMessageThreadId, NULL, threadProc, this);
+ if (status) {
+ ALOGE("Failed to start RenderScript message thread.");
+ return false;
+ }
+ // Wait for the message thread to be active.
+ while (!mMessageRun) {
+ usleep(1000);
+ }
+
+ return true;
+}
+
+void * RenderScript::threadProc(void *vrsc) {
+ RenderScript *rs = static_cast<RenderScript *>(vrsc);
+ size_t rbuf_size = 256;
+ void * rbuf = malloc(rbuf_size);
+
+ rsContextInitToClient(rs->mContext);
+ rs->mMessageRun = true;
+
+ while (rs->mMessageRun) {
+ size_t receiveLen = 0;
+ uint32_t usrID = 0;
+ uint32_t subID = 0;
+ RsMessageToClientType r = rsContextPeekMessage(rs->mContext,
+ &receiveLen, sizeof(receiveLen),
+ &usrID, sizeof(usrID));
+
+ if (receiveLen >= rbuf_size) {
+ rbuf_size = receiveLen + 32;
+ rbuf = realloc(rbuf, rbuf_size);
+ }
+ if (!rbuf) {
+ ALOGE("RenderScript::message handler realloc error %zu", rbuf_size);
+ // No clean way to recover now?
+ }
+ rsContextGetMessage(rs->mContext, rbuf, rbuf_size, &receiveLen, sizeof(receiveLen),
+ &subID, sizeof(subID));
+
+ switch(r) {
+ case RS_MESSAGE_TO_CLIENT_ERROR:
+ ALOGE("RS Error %s", (const char *)rbuf);
+
+ if(rs->mMessageFunc != NULL) {
+ rs->mErrorFunc(usrID, (const char *)rbuf);
+ }
+ break;
+ case RS_MESSAGE_TO_CLIENT_EXCEPTION:
+ // teardown. But we want to avoid starving other threads during
+ // teardown by yielding until the next line in the destructor can
+ // execute to set mRun = false
+ usleep(1000);
+ break;
+ case RS_MESSAGE_TO_CLIENT_USER:
+ if(rs->mMessageFunc != NULL) {
+ rs->mMessageFunc(usrID, rbuf, receiveLen);
+ } else {
+ ALOGE("Received a message from the script with no message handler installed.");
+ }
+ break;
+
+ default:
+ ALOGE("RenderScript unknown message type %i", r);
+ }
+ }
+
+ if (rbuf) {
+ free(rbuf);
+ }
+ ALOGE("RenderScript Message thread exiting.");
+ return NULL;
+}
+
+void RenderScript::setErrorHandler(ErrorHandlerFunc_t func) {
+ mErrorFunc = func;
+}
+
+void RenderScript::setMessageHandler(MessageHandlerFunc_t func) {
+ mMessageFunc = func;
+}
+
+void RenderScript::contextDump() {
+}
+
+void RenderScript::finish() {
+
+}
+
+