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240 lines
8.6 KiB
240 lines
8.6 KiB
/*
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**
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** Copyright 2012 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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// TODO(b/129481165): remove the #pragma below and fix conversion issues
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wconversion"
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// #define LOG_NDEBUG 0
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#undef LOG_TAG
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#define LOG_TAG "FramebufferSurface"
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <utils/String8.h>
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#include <log/log.h>
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#include <hardware/hardware.h>
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// HUANGLONG begin
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#include <hardware/gralloc1.h>
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// HUANGLONG end
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#include <gui/BufferItem.h>
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#include <gui/BufferQueue.h>
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#include <gui/Surface.h>
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#include <ui/DebugUtils.h>
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#include <ui/GraphicBuffer.h>
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#include <ui/Rect.h>
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#include "FramebufferSurface.h"
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#include "HWComposer.h"
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#include "../SurfaceFlinger.h"
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// ----------------------------------------------------------------------------
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namespace android {
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// ----------------------------------------------------------------------------
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using ui::Dataspace;
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/*
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* This implements the (main) framebuffer management. This class is used
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* mostly by SurfaceFlinger, but also by command line GL application.
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*
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*/
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FramebufferSurface::FramebufferSurface(HWComposer& hwc, PhysicalDisplayId displayId,
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const sp<IGraphicBufferConsumer>& consumer,
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const ui::Size& size, const ui::Size& maxSize)
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: ConsumerBase(consumer),
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mDisplayId(displayId),
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mMaxSize(maxSize),
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mCurrentBufferSlot(-1),
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mCurrentBuffer(),
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mCurrentFence(Fence::NO_FENCE),
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mHwc(hwc),
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mHasPendingRelease(false),
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mPreviousBufferSlot(BufferQueue::INVALID_BUFFER_SLOT),
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mPreviousBuffer() {
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ALOGV("Creating for display %s", to_string(displayId).c_str());
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mName = "FramebufferSurface";
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mConsumer->setConsumerName(mName);
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// HUANGLONG begin
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// For dual-screen display, get/set usage process
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uint64_t usage = GRALLOC_USAGE_HW_FB | GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_COMPOSER;
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if (displayId.value == HWC_DISPLAY_EXTERNAL) {
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usage |= GRALLOC1_CONSUMER_USAGE_PRIVATE_19;
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}
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mConsumer->setConsumerUsageBits(usage);
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// mConsumer->setConsumerUsageBits(GRALLOC_USAGE_HW_FB |
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// GRALLOC_USAGE_HW_RENDER |
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// GRALLOC_USAGE_HW_COMPOSER);
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// HUANGLONG add end
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const auto limitedSize = limitSize(size);
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mConsumer->setDefaultBufferSize(limitedSize.width, limitedSize.height);
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mConsumer->setMaxAcquiredBufferCount(
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SurfaceFlinger::maxFrameBufferAcquiredBuffers - 1);
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}
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void FramebufferSurface::resizeBuffers(const ui::Size& newSize) {
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const auto limitedSize = limitSize(newSize);
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mConsumer->setDefaultBufferSize(limitedSize.width, limitedSize.height);
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}
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status_t FramebufferSurface::beginFrame(bool /*mustRecompose*/) {
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return NO_ERROR;
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}
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status_t FramebufferSurface::prepareFrame(CompositionType /*compositionType*/) {
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return NO_ERROR;
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}
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status_t FramebufferSurface::advanceFrame() {
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uint32_t slot = 0;
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sp<GraphicBuffer> buf;
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sp<Fence> acquireFence(Fence::NO_FENCE);
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Dataspace dataspace = Dataspace::UNKNOWN;
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status_t result = nextBuffer(slot, buf, acquireFence, dataspace);
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mDataSpace = dataspace;
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if (result != NO_ERROR) {
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ALOGE("error latching next FramebufferSurface buffer: %s (%d)",
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strerror(-result), result);
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}
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return result;
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}
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status_t FramebufferSurface::nextBuffer(uint32_t& outSlot,
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sp<GraphicBuffer>& outBuffer, sp<Fence>& outFence,
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Dataspace& outDataspace) {
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Mutex::Autolock lock(mMutex);
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BufferItem item;
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status_t err = acquireBufferLocked(&item, 0);
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if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
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mHwcBufferCache.getHwcBuffer(mCurrentBufferSlot, mCurrentBuffer, &outSlot, &outBuffer);
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return NO_ERROR;
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} else if (err != NO_ERROR) {
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ALOGE("error acquiring buffer: %s (%d)", strerror(-err), err);
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return err;
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}
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// If the BufferQueue has freed and reallocated a buffer in mCurrentSlot
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// then we may have acquired the slot we already own. If we had released
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// our current buffer before we call acquireBuffer then that release call
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// would have returned STALE_BUFFER_SLOT, and we would have called
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// freeBufferLocked on that slot. Because the buffer slot has already
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// been overwritten with the new buffer all we have to do is skip the
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// releaseBuffer call and we should be in the same state we'd be in if we
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// had released the old buffer first.
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if (mCurrentBufferSlot != BufferQueue::INVALID_BUFFER_SLOT &&
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item.mSlot != mCurrentBufferSlot) {
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mHasPendingRelease = true;
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mPreviousBufferSlot = mCurrentBufferSlot;
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mPreviousBuffer = mCurrentBuffer;
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}
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mCurrentBufferSlot = item.mSlot;
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mCurrentBuffer = mSlots[mCurrentBufferSlot].mGraphicBuffer;
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mCurrentFence = item.mFence;
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outFence = item.mFence;
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mHwcBufferCache.getHwcBuffer(mCurrentBufferSlot, mCurrentBuffer, &outSlot, &outBuffer);
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outDataspace = static_cast<Dataspace>(item.mDataSpace);
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status_t result = mHwc.setClientTarget(mDisplayId, outSlot, outFence, outBuffer, outDataspace);
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if (result != NO_ERROR) {
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ALOGE("error posting framebuffer: %d", result);
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return result;
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}
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return NO_ERROR;
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}
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void FramebufferSurface::freeBufferLocked(int slotIndex) {
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ConsumerBase::freeBufferLocked(slotIndex);
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if (slotIndex == mCurrentBufferSlot) {
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mCurrentBufferSlot = BufferQueue::INVALID_BUFFER_SLOT;
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}
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}
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void FramebufferSurface::onFrameCommitted() {
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if (mHasPendingRelease) {
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sp<Fence> fence = mHwc.getPresentFence(mDisplayId);
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if (fence->isValid()) {
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status_t result = addReleaseFence(mPreviousBufferSlot,
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mPreviousBuffer, fence);
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ALOGE_IF(result != NO_ERROR, "onFrameCommitted: failed to add the"
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" fence: %s (%d)", strerror(-result), result);
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}
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status_t result = releaseBufferLocked(mPreviousBufferSlot, mPreviousBuffer);
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ALOGE_IF(result != NO_ERROR, "onFrameCommitted: error releasing buffer:"
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" %s (%d)", strerror(-result), result);
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mPreviousBuffer.clear();
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mHasPendingRelease = false;
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}
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}
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ui::Size FramebufferSurface::limitSize(const ui::Size& size) {
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return limitSizeInternal(size, mMaxSize);
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}
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ui::Size FramebufferSurface::limitSizeInternal(const ui::Size& size, const ui::Size& maxSize) {
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ui::Size limitedSize = size;
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bool wasLimited = false;
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if (size.width > maxSize.width && maxSize.width != 0) {
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const float aspectRatio = static_cast<float>(size.width) / size.height;
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limitedSize.height = maxSize.width / aspectRatio;
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limitedSize.width = maxSize.width;
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wasLimited = true;
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}
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if (limitedSize.height > maxSize.height && maxSize.height != 0) {
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const float aspectRatio = static_cast<float>(size.width) / size.height;
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limitedSize.height = maxSize.height;
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limitedSize.width = maxSize.height * aspectRatio;
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wasLimited = true;
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}
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ALOGI_IF(wasLimited, "framebuffer size has been limited to [%dx%d] from [%dx%d]",
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limitedSize.width, limitedSize.height, size.width, size.height);
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return limitedSize;
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}
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void FramebufferSurface::dumpAsString(String8& result) const {
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Mutex::Autolock lock(mMutex);
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result.appendFormat(" FramebufferSurface: dataspace: %s(%d)\n",
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dataspaceDetails(static_cast<android_dataspace>(mDataSpace)).c_str(),
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mDataSpace);
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ConsumerBase::dumpLocked(result, " ");
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}
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void FramebufferSurface::dumpLocked(String8& result, const char* prefix) const
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{
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ConsumerBase::dumpLocked(result, prefix);
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}
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const sp<Fence>& FramebufferSurface::getClientTargetAcquireFence() const {
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return mCurrentFence;
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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// ----------------------------------------------------------------------------
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// TODO(b/129481165): remove the #pragma below and fix conversion issues
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#pragma clang diagnostic pop // ignored "-Wconversion"
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