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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrGpuResource.h"
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrResourceCache.h"
#include "GrGpu.h"
#include "GrGpuResourcePriv.h"
#include "SkTraceMemoryDump.h"
static inline GrResourceCache* get_resource_cache(GrGpu* gpu) {
SkASSERT(gpu);
SkASSERT(gpu->getContext());
SkASSERT(gpu->getContext()->contextPriv().getResourceCache());
return gpu->getContext()->contextPriv().getResourceCache();
}
GrGpuResource::GrGpuResource(GrGpu* gpu)
: fExternalFlushCntWhenBecamePurgeable(0)
, fGpu(gpu)
, fGpuMemorySize(kInvalidGpuMemorySize)
, fBudgeted(SkBudgeted::kNo)
, fRefsWrappedObjects(false)
, fUniqueID(CreateUniqueID()) {
SkDEBUGCODE(fCacheArrayIndex = -1);
}
void GrGpuResource::registerWithCache(SkBudgeted budgeted) {
SkASSERT(fBudgeted == SkBudgeted::kNo);
fBudgeted = budgeted;
this->computeScratchKey(&fScratchKey);
get_resource_cache(fGpu)->resourceAccess().insertResource(this);
}
void GrGpuResource::registerWithCacheWrapped() {
SkASSERT(fBudgeted == SkBudgeted::kNo);
// Currently resources referencing wrapped objects are not budgeted.
fRefsWrappedObjects = true;
get_resource_cache(fGpu)->resourceAccess().insertResource(this);
}
GrGpuResource::~GrGpuResource() {
// The cache should have released or destroyed this resource.
SkASSERT(this->wasDestroyed());
}
void GrGpuResource::release() {
SkASSERT(fGpu);
this->onRelease();
get_resource_cache(fGpu)->resourceAccess().removeResource(this);
fGpu = nullptr;
fGpuMemorySize = 0;
}
void GrGpuResource::abandon() {
if (this->wasDestroyed()) {
return;
}
SkASSERT(fGpu);
this->onAbandon();
get_resource_cache(fGpu)->resourceAccess().removeResource(this);
fGpu = nullptr;
fGpuMemorySize = 0;
}
void GrGpuResource::dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const {
if (this->fRefsWrappedObjects && !traceMemoryDump->shouldDumpWrappedObjects()) {
return;
}
this->dumpMemoryStatisticsPriv(traceMemoryDump, this->getResourceName(),
this->getResourceType(), this->gpuMemorySize());
}
void GrGpuResource::dumpMemoryStatisticsPriv(SkTraceMemoryDump* traceMemoryDump,
const SkString& resourceName,
const char* type, size_t size) const {
const char* tag = "Scratch";
if (fUniqueKey.isValid()) {
tag = (fUniqueKey.tag() != nullptr) ? fUniqueKey.tag() : "Other";
}
traceMemoryDump->dumpNumericValue(resourceName.c_str(), "size", "bytes", size);
traceMemoryDump->dumpStringValue(resourceName.c_str(), "type", type);
traceMemoryDump->dumpStringValue(resourceName.c_str(), "category", tag);
if (this->isPurgeable()) {
traceMemoryDump->dumpNumericValue(resourceName.c_str(), "purgeable_size", "bytes", size);
}
this->setMemoryBacking(traceMemoryDump, resourceName);
}
SkString GrGpuResource::getResourceName() const {
// Dump resource as "skia/gpu_resources/resource_#".
SkString resourceName("skia/gpu_resources/resource_");
resourceName.appendU32(this->uniqueID().asUInt());
return resourceName;
}
const GrContext* GrGpuResource::getContext() const {
if (fGpu) {
return fGpu->getContext();
} else {
return nullptr;
}
}
GrContext* GrGpuResource::getContext() {
if (fGpu) {
return fGpu->getContext();
} else {
return nullptr;
}
}
void GrGpuResource::removeUniqueKey() {
if (this->wasDestroyed()) {
return;
}
SkASSERT(fUniqueKey.isValid());
get_resource_cache(fGpu)->resourceAccess().removeUniqueKey(this);
}
void GrGpuResource::setUniqueKey(const GrUniqueKey& key) {
SkASSERT(this->internalHasRef());
SkASSERT(key.isValid());
// Uncached resources can never have a unique key, unless they're wrapped resources. Wrapped
// resources are a special case: the unique keys give us a weak ref so that we can reuse the
// same resource (rather than re-wrapping). When a wrapped resource is no longer referenced,
// it will always be released - it is never converted to a scratch resource.
if (SkBudgeted::kNo == this->resourcePriv().isBudgeted() && !this->fRefsWrappedObjects) {
return;
}
if (this->wasDestroyed()) {
return;
}
get_resource_cache(fGpu)->resourceAccess().changeUniqueKey(this, key);
}
void GrGpuResource::notifyAllCntsAreZero(CntType lastCntTypeToReachZero) const {
if (this->wasDestroyed()) {
// We've already been removed from the cache. Goodbye cruel world!
delete this;
return;
}
// We should have already handled this fully in notifyRefCntIsZero().
SkASSERT(kRef_CntType != lastCntTypeToReachZero);
GrGpuResource* mutableThis = const_cast<GrGpuResource*>(this);
static const uint32_t kFlag =
GrResourceCache::ResourceAccess::kAllCntsReachedZero_RefNotificationFlag;
get_resource_cache(fGpu)->resourceAccess().notifyCntReachedZero(mutableThis, kFlag);
}
bool GrGpuResource::notifyRefCountIsZero() const {
if (this->wasDestroyed()) {
// handle this in notifyAllCntsAreZero().
return true;
}
GrGpuResource* mutableThis = const_cast<GrGpuResource*>(this);
uint32_t flags = GrResourceCache::ResourceAccess::kRefCntReachedZero_RefNotificationFlag;
if (!this->internalHasPendingIO()) {
flags |= GrResourceCache::ResourceAccess::kAllCntsReachedZero_RefNotificationFlag;
}
get_resource_cache(fGpu)->resourceAccess().notifyCntReachedZero(mutableThis, flags);
// There is no need to call our notifyAllCntsAreZero function at this point since we already
// told the cache about the state of cnts.
return false;
}
void GrGpuResource::removeScratchKey() {
if (!this->wasDestroyed() && fScratchKey.isValid()) {
get_resource_cache(fGpu)->resourceAccess().willRemoveScratchKey(this);
fScratchKey.reset();
}
}
void GrGpuResource::makeBudgeted() {
if (!this->wasDestroyed() && SkBudgeted::kNo == fBudgeted) {
// Currently resources referencing wrapped objects are not budgeted.
SkASSERT(!fRefsWrappedObjects);
fBudgeted = SkBudgeted::kYes;
get_resource_cache(fGpu)->resourceAccess().didChangeBudgetStatus(this);
}
}
void GrGpuResource::makeUnbudgeted() {
if (!this->wasDestroyed() && SkBudgeted::kYes == fBudgeted &&
!fUniqueKey.isValid()) {
fBudgeted = SkBudgeted::kNo;
get_resource_cache(fGpu)->resourceAccess().didChangeBudgetStatus(this);
}
}
uint32_t GrGpuResource::CreateUniqueID() {
static int32_t gUniqueID = SK_InvalidUniqueID;
uint32_t id;
do {
id = static_cast<uint32_t>(sk_atomic_inc(&gUniqueID) + 1);
} while (id == SK_InvalidUniqueID);
return id;
}
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