/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "GrOpList.h"
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#include "GrContext.h"
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#include "GrDeferredProxyUploader.h"
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#include "GrMemoryPool.h"
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#include "GrRenderTargetPriv.h"
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#include "GrSurfaceProxy.h"
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#include "GrTextureProxyPriv.h"
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#include <atomic>
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uint32_t GrOpList::CreateUniqueID() {
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static std::atomic<uint32_t> nextID{1};
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uint32_t id;
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do {
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id = nextID++;
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} while (id == SK_InvalidUniqueID);
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return id;
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}
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GrOpList::GrOpList(GrResourceProvider* resourceProvider, sk_sp<GrOpMemoryPool> opMemoryPool,
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GrSurfaceProxy* surfaceProxy, GrAuditTrail* auditTrail)
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: fOpMemoryPool(std::move(opMemoryPool))
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, fAuditTrail(auditTrail)
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, fUniqueID(CreateUniqueID())
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, fFlags(0) {
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SkASSERT(fOpMemoryPool);
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fTarget.setProxy(sk_ref_sp(surfaceProxy), kWrite_GrIOType);
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fTarget.get()->setLastOpList(this);
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if (resourceProvider && !resourceProvider->explicitlyAllocateGPUResources()) {
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// MDB TODO: remove this! We are currently moving to having all the ops that target
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// the RT as a dest (e.g., clear, etc.) rely on the opList's 'fTarget' pointer
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// for the IO Ref. This works well but until they are all swapped over (and none
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// are pre-emptively instantiating proxies themselves) we need to instantiate
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// here so that the GrSurfaces are created in an order that preserves the GrSurface
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// re-use assumptions.
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fTarget.get()->instantiate(resourceProvider);
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}
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fTarget.markPendingIO();
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}
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GrOpList::~GrOpList() {
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if (fTarget.get() && this == fTarget.get()->getLastOpList()) {
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// Ensure the target proxy doesn't keep hold of a dangling back pointer.
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fTarget.get()->setLastOpList(nullptr);
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}
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}
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bool GrOpList::instantiate(GrResourceProvider* resourceProvider) {
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return SkToBool(fTarget.get()->instantiate(resourceProvider));
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}
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void GrOpList::endFlush() {
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if (fTarget.get() && this == fTarget.get()->getLastOpList()) {
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fTarget.get()->setLastOpList(nullptr);
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}
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fTarget.reset();
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fDeferredProxies.reset();
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fAuditTrail = nullptr;
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}
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void GrOpList::instantiateDeferredProxies(GrResourceProvider* resourceProvider) {
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for (int i = 0; i < fDeferredProxies.count(); ++i) {
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if (resourceProvider->explicitlyAllocateGPUResources()) {
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SkASSERT(fDeferredProxies[i]->isInstantiated());
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} else {
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fDeferredProxies[i]->instantiate(resourceProvider);
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}
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}
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}
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void GrOpList::prepare(GrOpFlushState* flushState) {
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for (int i = 0; i < fDeferredProxies.count(); ++i) {
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fDeferredProxies[i]->texPriv().scheduleUpload(flushState);
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}
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this->onPrepare(flushState);
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}
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// Add a GrOpList-based dependency
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void GrOpList::addDependency(GrOpList* dependedOn) {
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SkASSERT(!dependedOn->dependsOn(this)); // loops are bad
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if (this->dependsOn(dependedOn)) {
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return; // don't add duplicate dependencies
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}
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fDependencies.push_back(dependedOn);
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dependedOn->addDependent(this);
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SkDEBUGCODE(this->validate());
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}
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// Convert from a GrSurface-based dependency to a GrOpList one
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void GrOpList::addDependency(GrSurfaceProxy* dependedOn, const GrCaps& caps) {
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if (dependedOn->getLastOpList()) {
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// If it is still receiving dependencies, this GrOpList shouldn't be closed
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SkASSERT(!this->isClosed());
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GrOpList* opList = dependedOn->getLastOpList();
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if (opList == this) {
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// self-read - presumably for dst reads. We can't make it closed in the self-read case.
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} else {
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this->addDependency(opList);
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// We are closing 'opList' here bc the current contents of it are what 'this' opList
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// depends on. We need a break in 'opList' so that the usage of that state has a
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// chance to execute.
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opList->makeClosed(caps);
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}
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}
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if (GrTextureProxy* textureProxy = dependedOn->asTextureProxy()) {
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if (textureProxy->texPriv().isDeferred()) {
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fDeferredProxies.push_back(textureProxy);
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}
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}
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}
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bool GrOpList::dependsOn(const GrOpList* dependedOn) const {
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for (int i = 0; i < fDependencies.count(); ++i) {
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if (fDependencies[i] == dependedOn) {
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return true;
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}
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}
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return false;
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}
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void GrOpList::addDependent(GrOpList* dependent) {
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fDependents.push_back(dependent);
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}
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#ifdef SK_DEBUG
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bool GrOpList::isDependedent(const GrOpList* dependent) const {
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for (int i = 0; i < fDependents.count(); ++i) {
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if (fDependents[i] == dependent) {
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return true;
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}
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}
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return false;
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}
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void GrOpList::validate() const {
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// TODO: check for loops and duplicates
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for (int i = 0; i < fDependencies.count(); ++i) {
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SkASSERT(fDependencies[i]->isDependedent(this));
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}
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}
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#endif
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bool GrOpList::isInstantiated() const { return fTarget.get()->isInstantiated(); }
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void GrOpList::closeThoseWhoDependOnMe(const GrCaps& caps) {
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for (int i = 0; i < fDependents.count(); ++i) {
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if (!fDependents[i]->isClosed()) {
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fDependents[i]->makeClosed(caps);
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}
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}
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}
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bool GrOpList::isFullyInstantiated() const {
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if (!this->isInstantiated()) {
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return false;
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}
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GrSurfaceProxy* proxy = fTarget.get();
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bool needsStencil = proxy->asRenderTargetProxy()
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? proxy->asRenderTargetProxy()->needsStencil()
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: false;
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if (needsStencil) {
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GrRenderTarget* rt = proxy->peekRenderTarget();
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if (!rt->renderTargetPriv().getStencilAttachment()) {
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return false;
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}
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}
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GrSurface* surface = proxy->peekSurface();
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if (surface->wasDestroyed()) {
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return false;
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}
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return true;
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}
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#ifdef SK_DEBUG
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static const char* op_to_name(GrLoadOp op) {
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return GrLoadOp::kLoad == op ? "load" : GrLoadOp::kClear == op ? "clear" : "discard";
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}
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void GrOpList::dump(bool printDependencies) const {
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SkDebugf("--------------------------------------------------------------\n");
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SkDebugf("opListID: %d - proxyID: %d - surfaceID: %d\n", fUniqueID,
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fTarget.get() ? fTarget.get()->uniqueID().asUInt() : -1,
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fTarget.get() && fTarget.get()->peekSurface()
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? fTarget.get()->peekSurface()->uniqueID().asUInt()
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: -1);
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SkDebugf("ColorLoadOp: %s %x StencilLoadOp: %s\n",
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op_to_name(fColorLoadOp),
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GrLoadOp::kClear == fColorLoadOp ? fLoadClearColor.toBytes_RGBA() : 0x0,
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op_to_name(fStencilLoadOp));
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if (printDependencies) {
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SkDebugf("I rely On (%d): ", fDependencies.count());
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for (int i = 0; i < fDependencies.count(); ++i) {
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SkDebugf("%d, ", fDependencies[i]->fUniqueID);
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}
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SkDebugf("\n");
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SkDebugf("(%d) Rely On Me: ", fDependents.count());
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for (int i = 0; i < fDependents.count(); ++i) {
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SkDebugf("%d, ", fDependents[i]->fUniqueID);
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}
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SkDebugf("\n");
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}
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}
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#endif
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