liboboe: oboe MMAP client interface
Bug: 33347409
Test: test_oboe_api
Change-Id: I2ff3e9b57c91839c6debe91903b3e4b92e82d681
Signed-off-by: Phil Burk <philburk@google.com>
diff --git a/media/liboboe/src/binding/AudioEndpointParcelable.cpp b/media/liboboe/src/binding/AudioEndpointParcelable.cpp
new file mode 100644
index 0000000..096a819
--- /dev/null
+++ b/media/liboboe/src/binding/AudioEndpointParcelable.cpp
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2016 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 <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+#include "binding/OboeServiceDefinitions.h"
+#include "binding/RingBufferParcelable.h"
+#include "binding/AudioEndpointParcelable.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace oboe;
+
+/**
+ * Container for information about the message queues plus
+ * general stream information needed by Oboe clients.
+ * It contains no addresses, just sizes, offsets and file descriptors for
+ * shared memory that can be passed through Binder.
+ */
+AudioEndpointParcelable::AudioEndpointParcelable() {}
+
+AudioEndpointParcelable::~AudioEndpointParcelable() {}
+
+/**
+ * Add the file descriptor to the table.
+ * @return index in table or negative error
+ */
+int32_t AudioEndpointParcelable::addFileDescriptor(int fd, int32_t sizeInBytes) {
+ if (mNumSharedMemories >= MAX_SHARED_MEMORIES) {
+ return OBOE_ERROR_OUT_OF_RANGE;
+ }
+ int32_t index = mNumSharedMemories++;
+ mSharedMemories[index].setup(fd, sizeInBytes);
+ return index;
+}
+
+/**
+ * The read and write must be symmetric.
+ */
+status_t AudioEndpointParcelable::writeToParcel(Parcel* parcel) const {
+ parcel->writeInt32(mNumSharedMemories);
+ for (int i = 0; i < mNumSharedMemories; i++) {
+ mSharedMemories[i].writeToParcel(parcel);
+ }
+ mUpMessageQueueParcelable.writeToParcel(parcel);
+ mDownMessageQueueParcelable.writeToParcel(parcel);
+ mUpDataQueueParcelable.writeToParcel(parcel);
+ mDownDataQueueParcelable.writeToParcel(parcel);
+ return NO_ERROR; // TODO check for errors above
+}
+
+status_t AudioEndpointParcelable::readFromParcel(const Parcel* parcel) {
+ parcel->readInt32(&mNumSharedMemories);
+ for (int i = 0; i < mNumSharedMemories; i++) {
+ mSharedMemories[i].readFromParcel(parcel);
+ }
+ mUpMessageQueueParcelable.readFromParcel(parcel);
+ mDownMessageQueueParcelable.readFromParcel(parcel);
+ mUpDataQueueParcelable.readFromParcel(parcel);
+ mDownDataQueueParcelable.readFromParcel(parcel);
+ return NO_ERROR; // TODO check for errors above
+}
+
+oboe_result_t AudioEndpointParcelable::resolve(EndpointDescriptor *descriptor) {
+ // TODO error check
+ mUpMessageQueueParcelable.resolve(mSharedMemories, &descriptor->upMessageQueueDescriptor);
+ mDownMessageQueueParcelable.resolve(mSharedMemories,
+ &descriptor->downMessageQueueDescriptor);
+ mUpDataQueueParcelable.resolve(mSharedMemories, &descriptor->upDataQueueDescriptor);
+ mDownDataQueueParcelable.resolve(mSharedMemories, &descriptor->downDataQueueDescriptor);
+ return OBOE_OK;
+}
+
+oboe_result_t AudioEndpointParcelable::validate() {
+ oboe_result_t result;
+ if (mNumSharedMemories < 0 || mNumSharedMemories >= MAX_SHARED_MEMORIES) {
+ ALOGE("AudioEndpointParcelable invalid mNumSharedMemories = %d", mNumSharedMemories);
+ return OBOE_ERROR_INTERNAL;
+ }
+ for (int i = 0; i < mNumSharedMemories; i++) {
+ result = mSharedMemories[i].validate();
+ if (result != OBOE_OK) {
+ return result;
+ }
+ }
+ if ((result = mUpMessageQueueParcelable.validate()) != OBOE_OK) {
+ ALOGE("AudioEndpointParcelable invalid mUpMessageQueueParcelable = %d", result);
+ return result;
+ }
+ if ((result = mDownMessageQueueParcelable.validate()) != OBOE_OK) {
+ ALOGE("AudioEndpointParcelable invalid mDownMessageQueueParcelable = %d", result);
+ return result;
+ }
+ if ((result = mUpDataQueueParcelable.validate()) != OBOE_OK) {
+ ALOGE("AudioEndpointParcelable invalid mUpDataQueueParcelable = %d", result);
+ return result;
+ }
+ if ((result = mDownDataQueueParcelable.validate()) != OBOE_OK) {
+ ALOGE("AudioEndpointParcelable invalid mDownDataQueueParcelable = %d", result);
+ return result;
+ }
+ return OBOE_OK;
+}
+
+void AudioEndpointParcelable::dump() {
+ ALOGD("AudioEndpointParcelable ======================================= BEGIN");
+ ALOGD("AudioEndpointParcelable mNumSharedMemories = %d", mNumSharedMemories);
+ for (int i = 0; i < mNumSharedMemories; i++) {
+ mSharedMemories[i].dump();
+ }
+ ALOGD("AudioEndpointParcelable mUpMessageQueueParcelable =========");
+ mUpMessageQueueParcelable.dump();
+ ALOGD("AudioEndpointParcelable mDownMessageQueueParcelable =======");
+ mDownMessageQueueParcelable.dump();
+ ALOGD("AudioEndpointParcelable mUpDataQueueParcelable ============");
+ mUpDataQueueParcelable.dump();
+ ALOGD("AudioEndpointParcelable mDownDataQueueParcelable ==========");
+ mDownDataQueueParcelable.dump();
+ ALOGD("AudioEndpointParcelable ======================================= END");
+}
+