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- /*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "src/core/SkMaskCache.h"
- #define CHECK_LOCAL(localCache, localName, globalName, ...) \
- ((localCache) ? localCache->localName(__VA_ARGS__) : SkResourceCache::globalName(__VA_ARGS__))
- struct MaskValue {
- SkMask fMask;
- SkCachedData* fData;
- };
- namespace {
- static unsigned gRRectBlurKeyNamespaceLabel;
- struct RRectBlurKey : public SkResourceCache::Key {
- public:
- RRectBlurKey(SkScalar sigma, const SkRRect& rrect, SkBlurStyle style)
- : fSigma(sigma)
- , fStyle(style)
- , fRRect(rrect)
- {
- this->init(&gRRectBlurKeyNamespaceLabel, 0,
- sizeof(fSigma) + sizeof(fStyle) + sizeof(fRRect));
- }
- SkScalar fSigma;
- int32_t fStyle;
- SkRRect fRRect;
- };
- struct RRectBlurRec : public SkResourceCache::Rec {
- RRectBlurRec(RRectBlurKey key, const SkMask& mask, SkCachedData* data)
- : fKey(key)
- {
- fValue.fMask = mask;
- fValue.fData = data;
- fValue.fData->attachToCacheAndRef();
- }
- ~RRectBlurRec() override {
- fValue.fData->detachFromCacheAndUnref();
- }
- RRectBlurKey fKey;
- MaskValue fValue;
- const Key& getKey() const override { return fKey; }
- size_t bytesUsed() const override { return sizeof(*this) + fValue.fData->size(); }
- const char* getCategory() const override { return "rrect-blur"; }
- SkDiscardableMemory* diagnostic_only_getDiscardable() const override {
- return fValue.fData->diagnostic_only_getDiscardable();
- }
- static bool Visitor(const SkResourceCache::Rec& baseRec, void* contextData) {
- const RRectBlurRec& rec = static_cast<const RRectBlurRec&>(baseRec);
- MaskValue* result = (MaskValue*)contextData;
- SkCachedData* tmpData = rec.fValue.fData;
- tmpData->ref();
- if (nullptr == tmpData->data()) {
- tmpData->unref();
- return false;
- }
- *result = rec.fValue;
- return true;
- }
- };
- } // namespace
- SkCachedData* SkMaskCache::FindAndRef(SkScalar sigma, SkBlurStyle style,
- const SkRRect& rrect, SkMask* mask, SkResourceCache* localCache) {
- MaskValue result;
- RRectBlurKey key(sigma, rrect, style);
- if (!CHECK_LOCAL(localCache, find, Find, key, RRectBlurRec::Visitor, &result)) {
- return nullptr;
- }
- *mask = result.fMask;
- mask->fImage = (uint8_t*)(result.fData->data());
- return result.fData;
- }
- void SkMaskCache::Add(SkScalar sigma, SkBlurStyle style,
- const SkRRect& rrect, const SkMask& mask, SkCachedData* data,
- SkResourceCache* localCache) {
- RRectBlurKey key(sigma, rrect, style);
- return CHECK_LOCAL(localCache, add, Add, new RRectBlurRec(key, mask, data));
- }
- //////////////////////////////////////////////////////////////////////////////////////////
- namespace {
- static unsigned gRectsBlurKeyNamespaceLabel;
- struct RectsBlurKey : public SkResourceCache::Key {
- public:
- RectsBlurKey(SkScalar sigma, SkBlurStyle style, const SkRect rects[], int count)
- : fSigma(sigma)
- , fStyle(style)
- {
- SkASSERT(1 == count || 2 == count);
- SkIRect ir;
- rects[0].roundOut(&ir);
- fSizes[0] = SkSize{rects[0].width(), rects[0].height()};
- if (2 == count) {
- fSizes[1] = SkSize{rects[1].width(), rects[1].height()};
- fSizes[2] = SkSize{rects[0].x() - rects[1].x(), rects[0].y() - rects[1].y()};
- } else {
- fSizes[1] = SkSize{0, 0};
- fSizes[2] = SkSize{0, 0};
- }
- fSizes[3] = SkSize{rects[0].x() - ir.x(), rects[0].y() - ir.y()};
- this->init(&gRectsBlurKeyNamespaceLabel, 0,
- sizeof(fSigma) + sizeof(fStyle) + sizeof(fSizes));
- }
- SkScalar fSigma;
- int32_t fStyle;
- SkSize fSizes[4];
- };
- struct RectsBlurRec : public SkResourceCache::Rec {
- RectsBlurRec(RectsBlurKey key, const SkMask& mask, SkCachedData* data)
- : fKey(key)
- {
- fValue.fMask = mask;
- fValue.fData = data;
- fValue.fData->attachToCacheAndRef();
- }
- ~RectsBlurRec() override {
- fValue.fData->detachFromCacheAndUnref();
- }
- RectsBlurKey fKey;
- MaskValue fValue;
- const Key& getKey() const override { return fKey; }
- size_t bytesUsed() const override { return sizeof(*this) + fValue.fData->size(); }
- const char* getCategory() const override { return "rects-blur"; }
- SkDiscardableMemory* diagnostic_only_getDiscardable() const override {
- return fValue.fData->diagnostic_only_getDiscardable();
- }
- static bool Visitor(const SkResourceCache::Rec& baseRec, void* contextData) {
- const RectsBlurRec& rec = static_cast<const RectsBlurRec&>(baseRec);
- MaskValue* result = static_cast<MaskValue*>(contextData);
- SkCachedData* tmpData = rec.fValue.fData;
- tmpData->ref();
- if (nullptr == tmpData->data()) {
- tmpData->unref();
- return false;
- }
- *result = rec.fValue;
- return true;
- }
- };
- } // namespace
- SkCachedData* SkMaskCache::FindAndRef(SkScalar sigma, SkBlurStyle style,
- const SkRect rects[], int count, SkMask* mask,
- SkResourceCache* localCache) {
- MaskValue result;
- RectsBlurKey key(sigma, style, rects, count);
- if (!CHECK_LOCAL(localCache, find, Find, key, RectsBlurRec::Visitor, &result)) {
- return nullptr;
- }
- *mask = result.fMask;
- mask->fImage = (uint8_t*)(result.fData->data());
- return result.fData;
- }
- void SkMaskCache::Add(SkScalar sigma, SkBlurStyle style,
- const SkRect rects[], int count, const SkMask& mask, SkCachedData* data,
- SkResourceCache* localCache) {
- RectsBlurKey key(sigma, style, rects, count);
- return CHECK_LOCAL(localCache, add, Add, new RectsBlurRec(key, mask, data));
- }
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