182 lines
5.1 KiB
C++
182 lines
5.1 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <binder/IMemory.h>
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#include <binder/Parcel.h>
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#include <utils/Errors.h>
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#include <binder/MemoryHeapBase.h>
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#include <ui/IOverlay.h>
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#include <ui/Overlay.h>
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#include <hardware/overlay.h>
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namespace android {
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Overlay::Overlay(const sp<OverlayRef>& overlayRef)
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: mOverlayRef(overlayRef), mOverlayData(0), mStatus(NO_INIT)
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{
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mOverlayData = NULL;
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hw_module_t const* module;
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if (overlayRef != 0) {
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if (hw_get_module(OVERLAY_HARDWARE_MODULE_ID, &module) == 0) {
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if (overlay_data_open(module, &mOverlayData) == NO_ERROR) {
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mStatus = mOverlayData->initialize(mOverlayData,
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overlayRef->mOverlayHandle);
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}
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}
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}
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}
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Overlay::~Overlay() {
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if (mOverlayData) {
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overlay_data_close(mOverlayData);
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}
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}
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status_t Overlay::dequeueBuffer(overlay_buffer_t* buffer)
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{
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if (mStatus != NO_ERROR) return mStatus;
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return mOverlayData->dequeueBuffer(mOverlayData, buffer);
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}
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status_t Overlay::queueBuffer(overlay_buffer_t buffer)
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{
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if (mStatus != NO_ERROR) return mStatus;
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return mOverlayData->queueBuffer(mOverlayData, buffer);
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}
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int32_t Overlay::getBufferCount() const
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{
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if (mStatus != NO_ERROR) return mStatus;
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return mOverlayData->getBufferCount(mOverlayData);
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}
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void* Overlay::getBufferAddress(overlay_buffer_t buffer)
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{
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if (mStatus != NO_ERROR) return NULL;
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return mOverlayData->getBufferAddress(mOverlayData, buffer);
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}
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void Overlay::destroy() {
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if (mStatus != NO_ERROR) return;
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mOverlayRef->mOverlayChannel->destroy();
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}
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status_t Overlay::getStatus() const {
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return mStatus;
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}
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overlay_handle_t Overlay::getHandleRef() const {
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if (mStatus != NO_ERROR) return NULL;
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return mOverlayRef->mOverlayHandle;
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}
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uint32_t Overlay::getWidth() const {
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if (mStatus != NO_ERROR) return 0;
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return mOverlayRef->mWidth;
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}
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uint32_t Overlay::getHeight() const {
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if (mStatus != NO_ERROR) return 0;
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return mOverlayRef->mHeight;
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}
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int32_t Overlay::getFormat() const {
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if (mStatus != NO_ERROR) return -1;
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return mOverlayRef->mFormat;
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}
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int32_t Overlay::getWidthStride() const {
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if (mStatus != NO_ERROR) return 0;
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return mOverlayRef->mWidthStride;
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}
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int32_t Overlay::getHeightStride() const {
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if (mStatus != NO_ERROR) return 0;
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return mOverlayRef->mHeightStride;
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}
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// ----------------------------------------------------------------------------
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OverlayRef::OverlayRef()
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: mOverlayHandle(0),
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mWidth(0), mHeight(0), mFormat(0), mWidthStride(0), mHeightStride(0),
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mOwnHandle(true)
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{
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}
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OverlayRef::OverlayRef(overlay_handle_t handle, const sp<IOverlay>& channel,
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uint32_t w, uint32_t h, int32_t f, uint32_t ws, uint32_t hs)
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: mOverlayHandle(handle), mOverlayChannel(channel),
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mWidth(w), mHeight(h), mFormat(f), mWidthStride(ws), mHeightStride(hs),
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mOwnHandle(false)
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{
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}
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OverlayRef::~OverlayRef()
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{
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if (mOwnHandle) {
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/* FIXME: handles should be promoted to "real" API and be handled by
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* the framework */
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for (int i=0 ; i<mOverlayHandle->numFds ; i++) {
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close(mOverlayHandle->data[i]);
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}
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free((void*)mOverlayHandle);
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}
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}
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sp<OverlayRef> OverlayRef::readFromParcel(const Parcel& data) {
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sp<OverlayRef> result;
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sp<IOverlay> overlay = IOverlay::asInterface(data.readStrongBinder());
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if (overlay != NULL) {
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uint32_t w = data.readInt32();
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uint32_t h = data.readInt32();
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uint32_t f = data.readInt32();
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uint32_t ws = data.readInt32();
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uint32_t hs = data.readInt32();
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native_handle* handle = data.readNativeHandle(NULL, NULL);
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result = new OverlayRef();
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result->mOverlayHandle = handle;
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result->mOverlayChannel = overlay;
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result->mWidth = w;
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result->mHeight = h;
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result->mFormat = f;
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result->mWidthStride = ws;
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result->mHeightStride = hs;
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}
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return result;
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}
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status_t OverlayRef::writeToParcel(Parcel* reply, const sp<OverlayRef>& o) {
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if (o != NULL) {
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reply->writeStrongBinder(o->mOverlayChannel->asBinder());
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reply->writeInt32(o->mWidth);
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reply->writeInt32(o->mHeight);
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reply->writeInt32(o->mFormat);
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reply->writeInt32(o->mWidthStride);
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reply->writeInt32(o->mHeightStride);
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reply->writeNativeHandle(*(o->mOverlayHandle));
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} else {
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reply->writeStrongBinder(NULL);
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}
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return NO_ERROR;
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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