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/*
* 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
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