1 files changed, 61 insertions, 0 deletions
diff --git a/libs/surfaceflinger_client/LayerState.cpp b/libs/surfaceflinger_client/LayerState.cpp
new file mode 100644
index 0000000..01c4c7e
--- /dev/null
+++ b/libs/surfaceflinger_client/LayerState.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2008 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/Errors.h>
+#include <binder/Parcel.h>
+#include <private/surfaceflinger/LayerState.h>
+
+namespace android {
+
+status_t layer_state_t::write(Parcel& output) const
+{
+    status_t err;
+
+    size_t len = transparentRegion.write(NULL, 0);
+    err = output.writeInt32(len);
+    if (err < NO_ERROR) return err;
+
+    void* buf = output.writeInplace(len);
+    if (buf == NULL) return NO_MEMORY;
+
+    err = transparentRegion.write(buf, len);
+    if (err < NO_ERROR) return err;
+
+    // NOTE: regions are at the end of the structure
+    size_t size = sizeof(layer_state_t);
+    size -= sizeof(transparentRegion);
+    err = output.write(this, size);
+    return err;
+}
+
+status_t layer_state_t::read(const Parcel& input)
+{
+    status_t err;
+    size_t len = input.readInt32();
+    void const* buf = input.readInplace(len);
+    if (buf == NULL) return NO_MEMORY;
+
+    err = transparentRegion.read(buf);
+    if (err < NO_ERROR) return err;
+
+    // NOTE: regions are at the end of the structure
+    size_t size = sizeof(layer_state_t);
+    size -= sizeof(transparentRegion);
+    input.read(this, size);
+    return NO_ERROR;
+}
+
+}; // namespace android