blob: 084d297a27c22d02ed45eb9af793346f7a6ddefb [file] [log] [blame]
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "src/base/SkArenaAlloc.h"
#include "src/core/SkStrikeSpec.h"
#include "src/text/gpu/Glyph.h"
#include "src/text/gpu/StrikeCache.h"
namespace sktext::gpu {
StrikeCache::~StrikeCache() {
this->freeAll();
}
void StrikeCache::freeAll() {
fCache.reset();
}
sk_sp<TextStrike> StrikeCache::findOrCreateStrike(const SkStrikeSpec& strikeSpec) {
if (sk_sp<TextStrike>* cached = fCache.find(strikeSpec.descriptor())) {
return *cached;
}
return this->generateStrike(strikeSpec);
}
sk_sp<TextStrike> StrikeCache::generateStrike(const SkStrikeSpec& strikeSpec) {
sk_sp<TextStrike> strike = sk_make_sp<TextStrike>(strikeSpec);
fCache.set(strike);
return strike;
}
const SkDescriptor& StrikeCache::HashTraits::GetKey(const sk_sp<TextStrike>& strike) {
return strike->fStrikeSpec.descriptor();
}
uint32_t StrikeCache::HashTraits::Hash(const SkDescriptor& descriptor) {
return descriptor.getChecksum();
}
TextStrike::TextStrike(const SkStrikeSpec& strikeSpec) : fStrikeSpec{strikeSpec} {}
Glyph* TextStrike::getGlyph(SkPackedGlyphID packedGlyphID) {
Glyph* glyph = fCache.findOrNull(packedGlyphID);
if (glyph == nullptr) {
glyph = fAlloc.make<Glyph>(packedGlyphID);
fCache.set(glyph);
}
return glyph;
}
const SkPackedGlyphID& TextStrike::HashTraits::GetKey(const Glyph* glyph) {
return glyph->fPackedID;
}
uint32_t TextStrike::HashTraits::Hash(SkPackedGlyphID key) {
return key.hash();
}
} // namespace sktext::gpu