1 files changed, 100 insertions, 0 deletions
diff --git a/dom/media/gmp/widevine-adapter/WidevineFileIO.cpp b/dom/media/gmp/widevine-adapter/WidevineFileIO.cpp
new file mode 100644
index 0000000000..913f6ba288
--- /dev/null
+++ b/dom/media/gmp/widevine-adapter/WidevineFileIO.cpp
@@ -0,0 +1,100 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "WidevineFileIO.h"
+#include "GMPLog.h"
+#include "WidevineUtils.h"
+
+#include "gmp-api/gmp-platform.h"
+
+// Declared in ChromiumCDMAdapter.cpp.
+extern const GMPPlatformAPI* sPlatform;
+
+namespace mozilla {
+
+void WidevineFileIO::Open(const char* aFilename, uint32_t aFilenameLength) {
+  mName = std::string(aFilename, aFilename + aFilenameLength);
+  GMPRecord* record = nullptr;
+  GMPErr err = sPlatform->createrecord(aFilename, aFilenameLength, &record,
+                                       static_cast<GMPRecordClient*>(this));
+  if (GMP_FAILED(err)) {
+    GMP_LOG_DEBUG("WidevineFileIO::Open() '%s' GMPCreateRecord failed",
+                  mName.c_str());
+    mClient->OnOpenComplete(cdm::FileIOClient::Status::kError);
+    return;
+  }
+  if (GMP_FAILED(record->Open())) {
+    GMP_LOG_DEBUG("WidevineFileIO::Open() '%s' record open failed",
+                  mName.c_str());
+    mClient->OnOpenComplete(cdm::FileIOClient::Status::kError);
+    return;
+  }
+
+  GMP_LOG_DEBUG("WidevineFileIO::Open() '%s'", mName.c_str());
+  mRecord = record;
+}
+
+void WidevineFileIO::Read() {
+  if (!mRecord) {
+    GMP_LOG_DEBUG("WidevineFileIO::Read() '%s' used uninitialized!",
+                  mName.c_str());
+    mClient->OnReadComplete(cdm::FileIOClient::Status::kError, nullptr, 0);
+    return;
+  }
+  GMP_LOG_DEBUG("WidevineFileIO::Read() '%s'", mName.c_str());
+  mRecord->Read();
+}
+
+void WidevineFileIO::Write(const uint8_t* aData, uint32_t aDataSize) {
+  if (!mRecord) {
+    GMP_LOG_DEBUG("WidevineFileIO::Write() '%s' used uninitialized!",
+                  mName.c_str());
+    mClient->OnWriteComplete(cdm::FileIOClient::Status::kError);
+    return;
+  }
+  mRecord->Write(aData, aDataSize);
+}
+
+void WidevineFileIO::Close() {
+  GMP_LOG_DEBUG("WidevineFileIO::Close() '%s'", mName.c_str());
+  if (mRecord) {
+    mRecord->Close();
+    mRecord = nullptr;
+  }
+  delete this;
+}
+
+static cdm::FileIOClient::Status GMPToWidevineFileStatus(GMPErr aStatus) {
+  switch (aStatus) {
+    case GMPRecordInUse:
+      return cdm::FileIOClient::Status::kInUse;
+    case GMPNoErr:
+      return cdm::FileIOClient::Status::kSuccess;
+    default:
+      return cdm::FileIOClient::Status::kError;
+  }
+}
+
+void WidevineFileIO::OpenComplete(GMPErr aStatus) {
+  GMP_LOG_DEBUG("WidevineFileIO::OpenComplete() '%s' status=%d", mName.c_str(),
+                aStatus);
+  mClient->OnOpenComplete(GMPToWidevineFileStatus(aStatus));
+}
+
+void WidevineFileIO::ReadComplete(GMPErr aStatus, const uint8_t* aData,
+                                  uint32_t aDataSize) {
+  GMP_LOG_DEBUG("WidevineFileIO::OnReadComplete() '%s' status=%d",
+                mName.c_str(), aStatus);
+  mClient->OnReadComplete(GMPToWidevineFileStatus(aStatus), aData, aDataSize);
+}
+
+void WidevineFileIO::WriteComplete(GMPErr aStatus) {
+  GMP_LOG_DEBUG("WidevineFileIO::WriteComplete() '%s' status=%d", mName.c_str(),
+                aStatus);
+  mClient->OnWriteComplete(GMPToWidevineFileStatus(aStatus));
+}
+
+}  // namespace mozilla