/* * Copyright (C) 2007 The Android Open Source Project * Copyright (c) 2009, The Linux Foundation. All rights reserved. * * 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 #include #include #include #include #include #include namespace android { Overlay::Overlay(const sp& 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); } status_t Overlay::resizeInput(uint32_t width, uint32_t height) { if (mStatus != NO_ERROR) return mStatus; return mOverlayData->resizeInput(mOverlayData, width, height); } status_t Overlay::setParameter(int param, int value) { if (mStatus != NO_ERROR) return mStatus; return mOverlayData->setParameter(mOverlayData, param, value); } status_t Overlay::setCrop(uint32_t x, uint32_t y, uint32_t w, uint32_t h) { if (mStatus != NO_ERROR) return mStatus; return mOverlayData->setCrop(mOverlayData, x, y, w, h); } status_t Overlay::getCrop(uint32_t* x, uint32_t* y, uint32_t* w, uint32_t* h) { if (mStatus != NO_ERROR) return mStatus; return mOverlayData->getCrop(mOverlayData, x, y, w, h); } int32_t Overlay::getBufferCount() const { if (mStatus != NO_ERROR) return mStatus; return mOverlayData->getBufferCount(mOverlayData); } status_t Overlay::setFd(int fd) { if (mStatus != NO_ERROR) return mStatus; return mOverlayData->setFd(mOverlayData, fd); } void* Overlay::getBufferAddress(overlay_buffer_t buffer) { if (mStatus != NO_ERROR) return NULL; return mOverlayData->getBufferAddress(mOverlayData, buffer); } void Overlay::destroy() { // Must delete the objects in reverse creation order, thus the // data side must be closed first and then the destroy send to // the control side. if (mOverlayData) { overlay_data_close(mOverlayData); mOverlayData = NULL; } else { LOGD("Overlay::destroy mOverlayData is NULL"); } if (mOverlayRef != 0) { mOverlayRef->mOverlayChannel->destroy(); } else { LOGD("Overlay::destroy mOverlayRef is NULL"); } } 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& 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) { native_handle_close(mOverlayHandle); native_handle_delete(const_cast(mOverlayHandle)); } } sp OverlayRef::readFromParcel(const Parcel& data) { sp result; sp 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(); 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& 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