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aaa4e34702
The hb_font_t object holds on to tables of font data, acquired through the MinikinFont::GetTable interface, which is based on copying data into caller-owned buffers. Now that we're caching lots of hb_font_t's, the cost of these buffers is significant. This patch moves to a different interface, inspired by HarfBuzz's hb_reference_table API, where the font can provide a pointer to the actual font data (which will often be mmap'ed, so it doesn't even consume physical RAM). Bug: 27860101 Change-Id: Id766ab16a8d342bf7322a90e076e801271d527d4
62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
/*
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* Copyright (C) 2015 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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#include "MinikinFontForTest.h"
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#include <minikin/MinikinFont.h>
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#include <SkTypeface.h>
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#include <cutils/log.h>
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MinikinFontForTest::MinikinFontForTest(const std::string& font_path) : mFontPath(font_path) {
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mTypeface = SkTypeface::CreateFromFile(font_path.c_str());
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}
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MinikinFontForTest::~MinikinFontForTest() {
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}
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float MinikinFontForTest::GetHorizontalAdvance(uint32_t /* glyph_id */,
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const android::MinikinPaint& /* paint */) const {
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LOG_ALWAYS_FATAL("MinikinFontForTest::GetHorizontalAdvance is not yet implemented");
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return 0.0f;
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}
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void MinikinFontForTest::GetBounds(android::MinikinRect* /* bounds */, uint32_t /* glyph_id */,
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const android::MinikinPaint& /* paint */) const {
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LOG_ALWAYS_FATAL("MinikinFontForTest::GetBounds is not yet implemented");
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}
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const void* MinikinFontForTest::GetTable(uint32_t tag, size_t* size,
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android::MinikinDestroyFunc* destroy) {
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const size_t tableSize = mTypeface->getTableSize(tag);
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*size = tableSize;
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if (tableSize == 0) {
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return nullptr;
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}
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void* buf = malloc(tableSize);
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if (buf == nullptr) {
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return nullptr;
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}
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mTypeface->getTableData(tag, 0, tableSize, buf);
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*destroy = free;
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return buf;
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}
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int32_t MinikinFontForTest::GetUniqueId() const {
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return mTypeface->uniqueID();
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}
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