89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/*
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* Copyright 2013 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 "VirtualDisplaySurface.h"
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#include "HWComposer.h"
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// ---------------------------------------------------------------------------
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namespace android {
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// ---------------------------------------------------------------------------
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VirtualDisplaySurface::VirtualDisplaySurface(HWComposer& hwc, int disp,
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const sp<IGraphicBufferProducer>& sink, const String8& name)
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: mHwc(hwc),
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mDisplayId(disp),
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mSource(new BufferQueueInterposer(sink, name)),
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mName(name)
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{}
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VirtualDisplaySurface::~VirtualDisplaySurface() {
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if (mAcquiredBuffer != NULL) {
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status_t result = mSource->releaseBuffer(Fence::NO_FENCE);
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ALOGE_IF(result != NO_ERROR, "VirtualDisplaySurface \"%s\": "
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"failed to release buffer: %d", mName.string(), result);
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}
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}
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sp<IGraphicBufferProducer> VirtualDisplaySurface::getIGraphicBufferProducer() const {
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return mSource;
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}
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status_t VirtualDisplaySurface::compositionComplete() {
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return NO_ERROR;
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}
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status_t VirtualDisplaySurface::advanceFrame() {
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Mutex::Autolock lock(mMutex);
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status_t result = NO_ERROR;
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if (mAcquiredBuffer != NULL) {
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ALOGE("VirtualDisplaySurface \"%s\": "
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"advanceFrame called twice without onFrameCommitted",
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mName.string());
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return INVALID_OPERATION;
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}
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sp<Fence> fence;
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result = mSource->acquireBuffer(&mAcquiredBuffer, &fence);
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if (result == BufferQueueInterposer::NO_BUFFER_AVAILABLE) {
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result = mSource->pullEmptyBuffer();
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if (result != NO_ERROR)
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return result;
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result = mSource->acquireBuffer(&mAcquiredBuffer, &fence);
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}
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if (result != NO_ERROR)
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return result;
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return mHwc.fbPost(mDisplayId, fence, mAcquiredBuffer);
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}
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void VirtualDisplaySurface::onFrameCommitted(const sp<Fence>& fence) {
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Mutex::Autolock lock(mMutex);
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if (mAcquiredBuffer != NULL) {
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status_t result = mSource->releaseBuffer(fence);
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ALOGE_IF(result != NO_ERROR, "VirtualDisplaySurface \"%s\": "
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"failed to release buffer: %d", mName.string(), result);
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mAcquiredBuffer.clear();
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}
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}
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void VirtualDisplaySurface::dump(String8& result) const {
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}
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// ---------------------------------------------------------------------------
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} // namespace android
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// ---------------------------------------------------------------------------
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