028dc8f2d7
We weren't dequeing and setting the output buffer until just before set(). This didn't allow HWC to make decisions in prepare() based on the output buffer format, dimensions, etc. Now we dequeue the output buffer at the beginning of the composition loop and provide it to HWC in prepare. In GLES-only rendering, we may have to cancel the buffer and acquire a new one if GLES requests a buffer with properties different than the one we already dequeued. Bug: 10365313 Change-Id: I96b4b0a851920e4334ef05080d58097d46467ab8
446 lines
16 KiB
C++
446 lines
16 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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// #define LOG_NDEBUG 0
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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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#define VDS_LOGE(msg, ...) ALOGE("[%s] "msg, \
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mDisplayName.string(), ##__VA_ARGS__)
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#define VDS_LOGW_IF(cond, msg, ...) ALOGW_IF(cond, "[%s] "msg, \
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mDisplayName.string(), ##__VA_ARGS__)
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#define VDS_LOGV(msg, ...) ALOGV("[%s] "msg, \
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mDisplayName.string(), ##__VA_ARGS__)
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static const char* dbgCompositionTypeStr(DisplaySurface::CompositionType type) {
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switch (type) {
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case DisplaySurface::COMPOSITION_UNKNOWN: return "UNKNOWN";
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case DisplaySurface::COMPOSITION_GLES: return "GLES";
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case DisplaySurface::COMPOSITION_HWC: return "HWC";
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case DisplaySurface::COMPOSITION_MIXED: return "MIXED";
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default: return "<INVALID>";
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}
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}
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VirtualDisplaySurface::VirtualDisplaySurface(HWComposer& hwc, int32_t dispId,
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const sp<IGraphicBufferProducer>& sink,
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const sp<BufferQueue>& bq,
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const String8& name)
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: ConsumerBase(bq),
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mHwc(hwc),
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mDisplayId(dispId),
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mDisplayName(name),
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mProducerUsage(GRALLOC_USAGE_HW_COMPOSER),
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mProducerSlotSource(0),
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mDbgState(DBG_STATE_IDLE),
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mDbgLastCompositionType(COMPOSITION_UNKNOWN)
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{
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mSource[SOURCE_SINK] = sink;
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mSource[SOURCE_SCRATCH] = bq;
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resetPerFrameState();
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int sinkWidth, sinkHeight;
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mSource[SOURCE_SINK]->query(NATIVE_WINDOW_WIDTH, &sinkWidth);
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mSource[SOURCE_SINK]->query(NATIVE_WINDOW_HEIGHT, &sinkHeight);
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ConsumerBase::mName = String8::format("VDS: %s", mDisplayName.string());
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mConsumer->setConsumerName(ConsumerBase::mName);
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mConsumer->setConsumerUsageBits(GRALLOC_USAGE_HW_COMPOSER);
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mConsumer->setDefaultBufferSize(sinkWidth, sinkHeight);
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mConsumer->setDefaultMaxBufferCount(2);
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}
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VirtualDisplaySurface::~VirtualDisplaySurface() {
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}
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status_t VirtualDisplaySurface::beginFrame() {
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if (mDisplayId < 0)
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return NO_ERROR;
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VDS_LOGW_IF(mDbgState != DBG_STATE_IDLE,
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"Unexpected beginFrame() in %s state", dbgStateStr());
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mDbgState = DBG_STATE_BEGUN;
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uint32_t transformHint, numPendingBuffers;
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mQueueBufferOutput.deflate(&mSinkBufferWidth, &mSinkBufferHeight,
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&transformHint, &numPendingBuffers);
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return refreshOutputBuffer();
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}
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status_t VirtualDisplaySurface::prepareFrame(CompositionType compositionType) {
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if (mDisplayId < 0)
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return NO_ERROR;
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VDS_LOGW_IF(mDbgState != DBG_STATE_BEGUN,
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"Unexpected prepareFrame() in %s state", dbgStateStr());
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mDbgState = DBG_STATE_PREPARED;
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mCompositionType = compositionType;
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if (mCompositionType != mDbgLastCompositionType) {
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VDS_LOGV("prepareFrame: composition type changed to %s",
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dbgCompositionTypeStr(mCompositionType));
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mDbgLastCompositionType = mCompositionType;
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}
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return NO_ERROR;
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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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if (mDisplayId < 0)
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return NO_ERROR;
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if (mCompositionType == COMPOSITION_HWC) {
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VDS_LOGW_IF(mDbgState != DBG_STATE_PREPARED,
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"Unexpected advanceFrame() in %s state on HWC frame",
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dbgStateStr());
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} else {
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VDS_LOGW_IF(mDbgState != DBG_STATE_GLES_DONE,
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"Unexpected advanceFrame() in %s state on GLES/MIXED frame",
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dbgStateStr());
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}
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mDbgState = DBG_STATE_HWC;
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if (mCompositionType == COMPOSITION_HWC) {
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// Use the output buffer for the FB as well, though conceptually the
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// FB is unused on this frame.
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mFbProducerSlot = mOutputProducerSlot;
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mFbFence = mOutputFence;
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}
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if (mFbProducerSlot < 0 || mOutputProducerSlot < 0) {
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// Last chance bailout if something bad happened earlier. For example,
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// in a GLES configuration, if the sink disappears then dequeueBuffer
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// will fail, the GLES driver won't queue a buffer, but SurfaceFlinger
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// will soldier on. So we end up here without a buffer. There should
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// be lots of scary messages in the log just before this.
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VDS_LOGE("advanceFrame: no buffer, bailing out");
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return NO_MEMORY;
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}
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sp<GraphicBuffer> fbBuffer = mProducerBuffers[mFbProducerSlot];
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sp<GraphicBuffer> outBuffer = mProducerBuffers[mOutputProducerSlot];
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VDS_LOGV("advanceFrame: fb=%d(%p) out=%d(%p)",
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mFbProducerSlot, fbBuffer.get(),
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mOutputProducerSlot, outBuffer.get());
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return mHwc.fbPost(mDisplayId, mFbFence, fbBuffer);
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}
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void VirtualDisplaySurface::onFrameCommitted() {
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if (mDisplayId < 0)
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return;
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VDS_LOGW_IF(mDbgState != DBG_STATE_HWC,
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"Unexpected onFrameCommitted() in %s state", dbgStateStr());
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mDbgState = DBG_STATE_IDLE;
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sp<Fence> fbFence = mHwc.getAndResetReleaseFence(mDisplayId);
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if (mCompositionType == COMPOSITION_MIXED && mFbProducerSlot >= 0) {
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// release the scratch buffer back to the pool
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Mutex::Autolock lock(mMutex);
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int sslot = mapProducer2SourceSlot(SOURCE_SCRATCH, mFbProducerSlot);
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VDS_LOGV("onFrameCommitted: release scratch sslot=%d", sslot);
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addReleaseFenceLocked(sslot, mProducerBuffers[mFbProducerSlot], fbFence);
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releaseBufferLocked(sslot, mProducerBuffers[mFbProducerSlot],
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EGL_NO_DISPLAY, EGL_NO_SYNC_KHR);
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}
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if (mOutputProducerSlot >= 0) {
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int sslot = mapProducer2SourceSlot(SOURCE_SINK, mOutputProducerSlot);
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QueueBufferOutput qbo;
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sp<Fence> outFence = mHwc.getLastRetireFence(mDisplayId);
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VDS_LOGV("onFrameCommitted: queue sink sslot=%d", sslot);
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status_t result = mSource[SOURCE_SINK]->queueBuffer(sslot,
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QueueBufferInput(systemTime(), false,
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Rect(mSinkBufferWidth, mSinkBufferHeight),
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NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, false, outFence),
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&qbo);
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if (result == NO_ERROR) {
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updateQueueBufferOutput(qbo);
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}
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}
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resetPerFrameState();
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}
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void VirtualDisplaySurface::dump(String8& result) const {
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}
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status_t VirtualDisplaySurface::requestBuffer(int pslot,
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sp<GraphicBuffer>* outBuf) {
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VDS_LOGW_IF(mDbgState != DBG_STATE_GLES,
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"Unexpected requestBuffer pslot=%d in %s state",
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pslot, dbgStateStr());
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*outBuf = mProducerBuffers[pslot];
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return NO_ERROR;
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}
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status_t VirtualDisplaySurface::setBufferCount(int bufferCount) {
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return mSource[SOURCE_SINK]->setBufferCount(bufferCount);
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}
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status_t VirtualDisplaySurface::dequeueBuffer(Source source,
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uint32_t format, int* sslot, sp<Fence>* fence, bool async) {
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status_t result = mSource[source]->dequeueBuffer(sslot, fence, async,
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mSinkBufferWidth, mSinkBufferHeight, format, mProducerUsage);
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if (result < 0)
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return result;
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int pslot = mapSource2ProducerSlot(source, *sslot);
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VDS_LOGV("dequeueBuffer(%s): sslot=%d pslot=%d result=%d",
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dbgSourceStr(source), *sslot, pslot, result);
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uint32_t sourceBit = static_cast<uint32_t>(source) << pslot;
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if ((mProducerSlotSource & (1u << pslot)) != sourceBit) {
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// This slot was previously dequeued from the other source; must
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// re-request the buffer.
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result |= BUFFER_NEEDS_REALLOCATION;
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mProducerSlotSource &= ~(1u << pslot);
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mProducerSlotSource |= sourceBit;
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}
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if (result & RELEASE_ALL_BUFFERS) {
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for (uint32_t i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) {
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if ((mProducerSlotSource & (1u << i)) == sourceBit)
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mProducerBuffers[i].clear();
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}
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}
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if (result & BUFFER_NEEDS_REALLOCATION) {
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mSource[source]->requestBuffer(*sslot, &mProducerBuffers[pslot]);
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VDS_LOGV("dequeueBuffer(%s): buffers[%d]=%p",
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dbgSourceStr(source), pslot, mProducerBuffers[pslot].get());
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}
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return result;
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}
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status_t VirtualDisplaySurface::dequeueBuffer(int* pslot, sp<Fence>* fence, bool async,
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uint32_t w, uint32_t h, uint32_t format, uint32_t usage) {
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VDS_LOGW_IF(mDbgState != DBG_STATE_PREPARED,
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"Unexpected dequeueBuffer() in %s state", dbgStateStr());
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mDbgState = DBG_STATE_GLES;
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VDS_LOGV("dequeueBuffer %dx%d fmt=%d usage=%#x", w, h, format, usage);
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status_t result = NO_ERROR;
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mProducerUsage = usage | GRALLOC_USAGE_HW_COMPOSER;
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Source source = fbSourceForCompositionType(mCompositionType);
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if (source == SOURCE_SINK) {
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// We already dequeued the output buffer. If the GLES driver wants
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// something incompatible, we have to cancel and get a new one. This
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// will mean that HWC will see a different output buffer between
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// prepare and set, but since we're in GLES-only mode already it
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// shouldn't matter.
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const sp<GraphicBuffer>& buf = mProducerBuffers[mOutputProducerSlot];
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if ((mProducerUsage & ~buf->getUsage()) != 0 ||
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(format != 0 && format != (uint32_t)buf->getPixelFormat()) ||
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(w != 0 && w != mSinkBufferWidth) ||
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(h != 0 && h != mSinkBufferHeight)) {
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VDS_LOGV("dequeueBuffer: output buffer doesn't satisfy GLES "
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"request, getting a new buffer");
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result = refreshOutputBuffer();
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if (result < 0)
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return result;
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}
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}
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if (source == SOURCE_SINK) {
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*pslot = mOutputProducerSlot;
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*fence = mOutputFence;
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} else {
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int sslot;
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result = dequeueBuffer(source, format, &sslot, fence, async);
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if (result >= 0) {
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*pslot = mapSource2ProducerSlot(source, sslot);
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}
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}
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return result;
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}
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status_t VirtualDisplaySurface::queueBuffer(int pslot,
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const QueueBufferInput& input, QueueBufferOutput* output) {
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VDS_LOGW_IF(mDbgState != DBG_STATE_GLES,
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"Unexpected queueBuffer(pslot=%d) in %s state", pslot,
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dbgStateStr());
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mDbgState = DBG_STATE_GLES_DONE;
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VDS_LOGV("queueBuffer pslot=%d", pslot);
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status_t result;
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if (mCompositionType == COMPOSITION_MIXED) {
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// Queue the buffer back into the scratch pool
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QueueBufferOutput scratchQBO;
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int sslot = mapProducer2SourceSlot(SOURCE_SCRATCH, pslot);
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result = mSource[SOURCE_SCRATCH]->queueBuffer(sslot, input, &scratchQBO);
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if (result != NO_ERROR)
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return result;
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// Now acquire the buffer from the scratch pool -- should be the same
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// slot and fence as we just queued.
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Mutex::Autolock lock(mMutex);
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BufferQueue::BufferItem item;
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result = acquireBufferLocked(&item, 0);
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if (result != NO_ERROR)
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return result;
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VDS_LOGW_IF(item.mBuf != sslot,
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"queueBuffer: acquired sslot %d from SCRATCH after queueing sslot %d",
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item.mBuf, sslot);
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mFbProducerSlot = mapSource2ProducerSlot(SOURCE_SCRATCH, item.mBuf);
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mFbFence = mSlots[item.mBuf].mFence;
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} else {
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LOG_FATAL_IF(mCompositionType != COMPOSITION_GLES,
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"Unexpected queueBuffer in state %s for compositionType %s",
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dbgStateStr(), dbgCompositionTypeStr(mCompositionType));
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// Extract the GLES release fence for HWC to acquire
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int64_t timestamp;
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bool isAutoTimestamp;
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Rect crop;
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int scalingMode;
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uint32_t transform;
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bool async;
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input.deflate(×tamp, &isAutoTimestamp, &crop, &scalingMode,
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&transform, &async, &mFbFence);
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mFbProducerSlot = pslot;
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mOutputFence = mFbFence;
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}
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*output = mQueueBufferOutput;
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return NO_ERROR;
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}
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void VirtualDisplaySurface::cancelBuffer(int pslot, const sp<Fence>& fence) {
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VDS_LOGW_IF(mDbgState != DBG_STATE_GLES,
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"Unexpected cancelBuffer(pslot=%d) in %s state", pslot,
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dbgStateStr());
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VDS_LOGV("cancelBuffer pslot=%d", pslot);
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Source source = fbSourceForCompositionType(mCompositionType);
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return mSource[source]->cancelBuffer(
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mapProducer2SourceSlot(source, pslot), fence);
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}
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int VirtualDisplaySurface::query(int what, int* value) {
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return mSource[SOURCE_SINK]->query(what, value);
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}
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status_t VirtualDisplaySurface::connect(int api, bool producerControlledByApp,
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QueueBufferOutput* output) {
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QueueBufferOutput qbo;
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status_t result = mSource[SOURCE_SINK]->connect(api, producerControlledByApp, &qbo);
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if (result == NO_ERROR) {
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updateQueueBufferOutput(qbo);
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*output = mQueueBufferOutput;
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}
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return result;
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}
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status_t VirtualDisplaySurface::disconnect(int api) {
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return mSource[SOURCE_SINK]->disconnect(api);
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}
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void VirtualDisplaySurface::updateQueueBufferOutput(
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const QueueBufferOutput& qbo) {
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uint32_t w, h, transformHint, numPendingBuffers;
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qbo.deflate(&w, &h, &transformHint, &numPendingBuffers);
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mQueueBufferOutput.inflate(w, h, 0, numPendingBuffers);
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}
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void VirtualDisplaySurface::resetPerFrameState() {
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mCompositionType = COMPOSITION_UNKNOWN;
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mSinkBufferWidth = 0;
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mSinkBufferHeight = 0;
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mFbFence = Fence::NO_FENCE;
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mOutputFence = Fence::NO_FENCE;
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mFbProducerSlot = -1;
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mOutputProducerSlot = -1;
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}
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status_t VirtualDisplaySurface::refreshOutputBuffer() {
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if (mOutputProducerSlot >= 0) {
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mSource[SOURCE_SINK]->cancelBuffer(
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mapProducer2SourceSlot(SOURCE_SINK, mOutputProducerSlot),
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mOutputFence);
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}
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int sslot;
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status_t result = dequeueBuffer(SOURCE_SINK, 0, &sslot, &mOutputFence, false);
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if (result < 0)
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return result;
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mOutputProducerSlot = mapSource2ProducerSlot(SOURCE_SINK, sslot);
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result = mHwc.setOutputBuffer(mDisplayId, mOutputFence,
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mProducerBuffers[mOutputProducerSlot]);
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return result;
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}
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// This slot mapping function is its own inverse, so two copies are unnecessary.
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// Both are kept to make the intent clear where the function is called, and for
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// the (unlikely) chance that we switch to a different mapping function.
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int VirtualDisplaySurface::mapSource2ProducerSlot(Source source, int sslot) {
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if (source == SOURCE_SCRATCH) {
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return BufferQueue::NUM_BUFFER_SLOTS - sslot - 1;
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} else {
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return sslot;
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}
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}
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int VirtualDisplaySurface::mapProducer2SourceSlot(Source source, int pslot) {
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return mapSource2ProducerSlot(source, pslot);
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}
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VirtualDisplaySurface::Source
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VirtualDisplaySurface::fbSourceForCompositionType(CompositionType type) {
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return type == COMPOSITION_MIXED ? SOURCE_SCRATCH : SOURCE_SINK;
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}
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const char* VirtualDisplaySurface::dbgStateStr() const {
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switch (mDbgState) {
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case DBG_STATE_IDLE: return "IDLE";
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case DBG_STATE_PREPARED: return "PREPARED";
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case DBG_STATE_GLES: return "GLES";
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case DBG_STATE_GLES_DONE: return "GLES_DONE";
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case DBG_STATE_HWC: return "HWC";
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default: return "INVALID";
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}
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}
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const char* VirtualDisplaySurface::dbgSourceStr(Source s) {
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switch (s) {
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case SOURCE_SINK: return "SINK";
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case SOURCE_SCRATCH: return "SCRATCH";
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default: return "INVALID";
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}
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}
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// ---------------------------------------------------------------------------
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} // namespace android
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// ---------------------------------------------------------------------------
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