[WVDRM] Support new Java API crypto HAL

Implements WV crypto plugin core lib build

Change-Id: I4f3fb06a4a9cf7c9c663d3dcee9cfd2c2900ebc2
related-to-bug: 5986621

proprietary/cryptoPlugin/WVCryptoPlugin.h

@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#ifndef WV_CRYPTO_PLUGIN_H_
+
+#define WV_CRYPTO_PLUGIN_H_
+
+#include <media/hardware/CryptoAPI.h>
+#include <utils/threads.h>
+
+namespace android {
+
+struct WVCryptoPlugin : public CryptoPlugin {
+    WVCryptoPlugin(const void *data, size_t size);
+    virtual ~WVCryptoPlugin();
+
+    status_t initCheck() const;
+
+    virtual bool requiresSecureDecoderComponent(const char *mime) const;
+
+    virtual status_t decrypt(
+            bool secure,
+            const uint8_t key[16],
+            const uint8_t iv[16],
+            Mode mode,
+            const void *srcPtr,
+            const SubSample *subSamples, size_t numSubSamples,
+            void *dstPtr,
+            AString *errorDetailMsg);
+
+private:
+    Mutex mLock;
+
+    status_t mInitCheck;
+
+    WVCryptoPlugin(const WVCryptoPlugin &);
+    WVCryptoPlugin &operator=(const WVCryptoPlugin &);
+};
+
+struct WVCryptoFactory : public CryptoFactory {
+    static const uint8_t kUUIDWidevine[16];
+
+    virtual bool isCryptoSchemeSupported(
+            const uint8_t uuid[16]) const {
+        return !memcmp(uuid, kUUIDWidevine, 16);
+    }
+
+    virtual status_t createPlugin(
+            const uint8_t uuid[16], const void *data, size_t size,
+            CryptoPlugin **out) {
+        *out = NULL;
+
+        if (memcmp(uuid, kUUIDWidevine, 16)) {
+            return -ENOENT;
+        }
+
+        WVCryptoPlugin *plugin = new WVCryptoPlugin(data, size);
+
+        status_t err;
+        if ((err = plugin->initCheck()) != OK) {
+            delete plugin;
+            plugin = NULL;
+
+            return err;
+        }
+
+        *out = plugin;
+
+        return OK;
+    }
+};
+
+}  // namespace android
+
+#endif // WV_CRYPTO_PLUGIN_H_
+