auto import from //depot/cupcake/@135843
diff --git a/libs/ui/Overlay.cpp b/libs/ui/Overlay.cpp
new file mode 100644
index 0000000..b236edc
--- /dev/null
+++ b/libs/ui/Overlay.cpp
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2007 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/IMemory.h>
+#include <utils/Parcel.h>
+#include <utils/Errors.h>
+#include <utils/MemoryHeapBase.h>
+
+#include <ui/IOverlay.h>
+#include <ui/Overlay.h>
+
+#include <hardware/overlay.h>
+
+namespace android {
+
+Overlay::Overlay(const sp<OverlayRef>& overlayRef)
+ : mOverlayRef(overlayRef), mOverlayData(0), mStatus(NO_INIT)
+{
+ mOverlayData = NULL;
+ hw_module_t const* module;
+ if (overlayRef != 0) {
+ if (hw_get_module(OVERLAY_HARDWARE_MODULE_ID, &module) == 0) {
+ if (overlay_data_open(module, &mOverlayData) == NO_ERROR) {
+ mStatus = mOverlayData->initialize(mOverlayData,
+ overlayRef->mOverlayHandle);
+ }
+ }
+ }
+}
+
+Overlay::~Overlay() {
+ if (mOverlayData) {
+ overlay_data_close(mOverlayData);
+ }
+}
+
+status_t Overlay::dequeueBuffer(overlay_buffer_t* buffer)
+{
+ if (mStatus != NO_ERROR) return mStatus;
+ return mOverlayData->dequeueBuffer(mOverlayData, buffer);
+}
+
+status_t Overlay::queueBuffer(overlay_buffer_t buffer)
+{
+ if (mStatus != NO_ERROR) return mStatus;
+ return mOverlayData->queueBuffer(mOverlayData, buffer);
+}
+
+int32_t Overlay::getBufferCount() const
+{
+ if (mStatus != NO_ERROR) return mStatus;
+ return mOverlayData->getBufferCount(mOverlayData);
+}
+
+void* Overlay::getBufferAddress(overlay_buffer_t buffer)
+{
+ if (mStatus != NO_ERROR) return NULL;
+ return mOverlayData->getBufferAddress(mOverlayData, buffer);
+}
+
+void Overlay::destroy() {
+ if (mStatus != NO_ERROR) return;
+ mOverlayRef->mOverlayChannel->destroy();
+}
+
+status_t Overlay::getStatus() const {
+ return mStatus;
+}
+
+overlay_handle_t Overlay::getHandleRef() const {
+ if (mStatus != NO_ERROR) return NULL;
+ return mOverlayRef->mOverlayHandle;
+}
+
+uint32_t Overlay::getWidth() const {
+ if (mStatus != NO_ERROR) return 0;
+ return mOverlayRef->mWidth;
+}
+
+uint32_t Overlay::getHeight() const {
+ if (mStatus != NO_ERROR) return 0;
+ return mOverlayRef->mHeight;
+}
+
+int32_t Overlay::getFormat() const {
+ if (mStatus != NO_ERROR) return -1;
+ return mOverlayRef->mFormat;
+}
+
+int32_t Overlay::getWidthStride() const {
+ if (mStatus != NO_ERROR) return 0;
+ return mOverlayRef->mWidthStride;
+}
+
+int32_t Overlay::getHeightStride() const {
+ if (mStatus != NO_ERROR) return 0;
+ return mOverlayRef->mHeightStride;
+}
+// ----------------------------------------------------------------------------
+
+OverlayRef::OverlayRef()
+ : mOverlayHandle(0),
+ mWidth(0), mHeight(0), mFormat(0), mWidthStride(0), mHeightStride(0),
+ mOwnHandle(true)
+{
+}
+
+OverlayRef::OverlayRef(overlay_handle_t handle, const sp<IOverlay>& channel,
+ uint32_t w, uint32_t h, int32_t f, uint32_t ws, uint32_t hs)
+ : mOverlayHandle(handle), mOverlayChannel(channel),
+ mWidth(w), mHeight(h), mFormat(f), mWidthStride(ws), mHeightStride(hs),
+ mOwnHandle(false)
+{
+}
+
+OverlayRef::~OverlayRef()
+{
+ if (mOwnHandle) {
+ /* FIXME: handles should be promoted to "real" API and be handled by
+ * the framework */
+ for (int i=0 ; i<mOverlayHandle->numFds ; i++) {
+ close(mOverlayHandle->data[i]);
+ }
+ free((void*)mOverlayHandle);
+ }
+}
+
+sp<OverlayRef> OverlayRef::readFromParcel(const Parcel& data) {
+ sp<OverlayRef> result;
+ sp<IOverlay> overlay = IOverlay::asInterface(data.readStrongBinder());
+ if (overlay != NULL) {
+ uint32_t w = data.readInt32();
+ uint32_t h = data.readInt32();
+ uint32_t f = data.readInt32();
+ uint32_t ws = data.readInt32();
+ uint32_t hs = data.readInt32();
+ native_handle* handle = data.readNativeHandle(NULL, NULL);
+
+ result = new OverlayRef();
+ result->mOverlayHandle = handle;
+ result->mOverlayChannel = overlay;
+ result->mWidth = w;
+ result->mHeight = h;
+ result->mFormat = f;
+ result->mWidthStride = ws;
+ result->mHeightStride = hs;
+ }
+ return result;
+}
+
+status_t OverlayRef::writeToParcel(Parcel* reply, const sp<OverlayRef>& o) {
+ if (o != NULL) {
+ reply->writeStrongBinder(o->mOverlayChannel->asBinder());
+ reply->writeInt32(o->mWidth);
+ reply->writeInt32(o->mHeight);
+ reply->writeInt32(o->mFormat);
+ reply->writeInt32(o->mWidthStride);
+ reply->writeInt32(o->mHeightStride);
+ reply->writeNativeHandle(*(o->mOverlayHandle));
+ } else {
+ reply->writeStrongBinder(NULL);
+ }
+ return NO_ERROR;
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android