107 lines
3.7 KiB
C++
107 lines
3.7 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/SystemFontResolver.hpp"
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#include "Base/Logger.hpp"
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#include "Host/ResourceLoader.hpp"
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#include <utility>
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namespace OpenVulkano::Scene
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{
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FontAtlasFactory::FontIdentifier::FontIdentifier(const std::string& font_, const std::set<uint32_t>& charset,
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SubpixelLayout subpixelLayout_, float ptSize_,
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FontAtlasType atlasType_)
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: font(font_), subpixelLayout(subpixelLayout_), ptSize(ptSize_), atlasType(atlasType_)
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{
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std::for_each(charset.begin(), charset.end(), [&](uint32_t c) { charsetHash ^= c; });
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}
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bool FontAtlasFactory::FontIdentifier::FontIdentifier::operator<(const FontIdentifier& other) const
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{
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return std::tie(atlasType, charsetHash, ptSize, subpixelLayout, font)
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< std::tie(other.atlasType, other.charsetHash, other.ptSize, other.subpixelLayout, other.font);
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}
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FontAtlas::Ptr FontAtlasFactory::GetFontAtlasScalable(const std::string& fontIdentifier, bool msdf,
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const std::set<uint32_t>& charset) const
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{
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const auto& fontData = FindFont(fontIdentifier);
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if (fontData.Empty())
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{
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Logger::DATA->warn("Could not find font {}", fontIdentifier);
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return nullptr;
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}
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const std::set<uint32_t>& setRef = (charset.empty() ? FontAtlasGeneratorBase::LoadAllGlyphs(fontData) : charset);
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FontIdentifier id(fontIdentifier, setRef, SubpixelLayout::UNKNOWN, 0,
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msdf ? FontAtlasType::MSDF : FontAtlasType::SDF);
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auto it = m_atlasesCache.find(id);
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if (it != m_atlasesCache.end())
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{
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return it->second;
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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(fontData, setRef);
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return m_atlasesCache.insert({ id, msdfGen.GetAtlas() }).first->second;
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}
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SdfFontAtlasGenerator sdfGen;
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sdfGen.GenerateAtlas(fontData, setRef);
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return m_atlasesCache.insert({ id, sdfGen.GetAtlas() }).first->second;
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}
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FontAtlas::Ptr FontAtlasFactory::GetFontAtlas(const std::string& fontIdentifier, float ptSize,
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SubpixelLayout subpixelLayout,
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const std::set<uint32_t>& charset) const
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{
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const auto& fontData = FindFont(fontIdentifier);
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if (fontData.Empty())
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{
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Logger::DATA->warn("Could not find font {}", fontIdentifier);
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return nullptr;
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}
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const std::set<uint32_t>& setRef = (charset.empty() ? FontAtlasGeneratorBase::LoadAllGlyphs(fontData) : charset);
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FontIdentifier id(fontIdentifier, setRef, subpixelLayout, ptSize,
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subpixelLayout ? FontAtlasType::BITMAP_SUBPIXEL : FontAtlasType::BITMAP);
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auto it = m_atlasesCache.find(id);
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if (it != m_atlasesCache.end())
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{
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return it->second;
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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(fontData, setRef);
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return m_atlasesCache.insert({ id, bitmapGen.GetAtlas() }).first->second;
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}
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Array<char> FontAtlasFactory::FindFont(const std::string& fontIdentifier) const
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{
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Array<char> resource = ResourceLoader::GetInstance().GetResource(fontIdentifier);
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if (resource.Empty())
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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 Utils::ReadFile(SystemFontResolver::GetSystemFontPath(fontIdentifier), true);
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}
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return Utils::ReadFile(fontIdentifier);
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}
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return resource;
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}
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}
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