80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#include "FontAtlasFactory.hpp"
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#include "Scene/SdfFontAtlasGenerator.hpp"
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#include "Scene/BitmapFontAtlasGenerator.hpp"
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#include "Host/SystemInfo.hpp"
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namespace OpenVulkano::Scene
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{
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FontAtlas::Ptr FontAtlasFactory::GetFontAtlasScalable(const std::string& fontIdentifier,
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const std::set<uint32_t>& charset, bool msdf) const
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{
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const std::string fileName = FindFont(fontIdentifier);
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if (fileName.empty())
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{
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return nullptr;
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}
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const std::set<uint32_t>& setRef = (charset.empty() ? FontAtlasGeneratorBase::LoadAllGlyphs(fontIdentifier) : charset);
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FontIdentifier id(fontIdentifier, setRef, SubpixelLayout::UNKNOWN, 0, msdf);
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if (m_atlasesCache.contains(id))
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{
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return m_atlasesCache.at(id);
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}
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if (msdf)
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{
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MsdfFontAtlasGenerator msdfGen;
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msdfGen.GenerateAtlas(fileName, setRef);
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m_atlasesCache[id] = msdfGen.GetAtlas();
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return m_atlasesCache.at(id);
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}
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SdfFontAtlasGenerator sdfGen;
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sdfGen.GenerateAtlas(fileName, setRef);
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m_atlasesCache[id] = sdfGen.GetAtlas();
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return m_atlasesCache.at(id);
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}
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FontAtlas::Ptr FontAtlasFactory::GetFontAtlas(const std::string& fontIdentifier, float ptSize,
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const std::set<uint32_t>& charset,
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std::optional<SubpixelLayout> subpixelLayout) const
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{
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const std::string fileName = FindFont(fontIdentifier);
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if (fileName.empty())
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{
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return nullptr;
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}
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const std::set<uint32_t>& setRef = (charset.empty() ? FontAtlasGeneratorBase::LoadAllGlyphs(fontIdentifier) : charset);
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FontIdentifier id(fontIdentifier, setRef, subpixelLayout.value_or(SubpixelLayout::UNKNOWN), ptSize, false);
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if (m_atlasesCache.contains(id))
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{
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return m_atlasesCache.at(id);
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}
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FontPixelSizeConfig cfg(ptSize);
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BitmapFontAtlasGenerator bitmapGen(cfg, subpixelLayout);
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bitmapGen.GenerateAtlas(fileName, setRef);
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m_atlasesCache[id] = bitmapGen.GetAtlas();
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return m_atlasesCache.at(id);
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}
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std::string FontAtlasFactory::FindFont(const std::string& fontIdentifier) const
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{
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if (!std::filesystem::exists(fontIdentifier))
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{
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if (!m_allowSystemFonts)
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{
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return "";
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}
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return SystemInfo::GetSystemFontPath(fontIdentifier);
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}
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return fontIdentifier;
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}
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}
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