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46 lines
1.3 KiB
46 lines
1.3 KiB
4 months ago
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/*
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* Copyright (c) Hisilicon Technologies Co., Ltd. 2019-2020. All rights reserved.
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* Description: Font style atlas
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* Author:
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* Create: 2019-08-22
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*/
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#ifndef FONT_STYLE_ATLAS_H
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#define FONT_STYLE_ATLAS_H
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#include "Common.h"
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#include <map>
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#include <freetype/ftglyph.h>
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namespace dolgles {
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class FontStyleAtlas {
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public:
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FontStyleAtlas();
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~FontStyleAtlas();
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EGL_S32 GetFontTexture(const GLTextInfo &textInfo, GLuint &styleTex);
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EGL_S32 LoadFontByPath(const std::string &fontLibPath);
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const std::map<unsigned long, GlyphInfo> &GetGlyphs() const;
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void GetFontGlyphs(const GLTextInfo &textInfo, std::map<unsigned long, GlyphInfo> &glyphsMap) const;
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GLuint GetFontTextureWidth() const;
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GLuint GetFontTextureHeight() const;
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private:
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void SetFontStyleAtlas(const GLTextInfo &textInfo, FT_Face face) const;
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EGL_S32 CreateStyleTex();
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EGL_S32 CalculateTexSize(const GLTextInfo &textInfo);
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void FontCharInfoToMap(FT_GlyphSlot glyph, int offsetX, int offsetY, FT_ULong charcode);
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void FontToTexture(const GLTextInfo &textInfo);
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void DeleteTexture();
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FT_Face fontFaceForTextSize;
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FT_Face fontFace;
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FT_Library library;
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GLuint texture;
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GLuint texWidth;
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GLuint texHeight;
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std::map<unsigned long, GlyphInfo> glyphs;
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};
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}; // namespace dolgles
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#endif // end FONT_STYLE_ATLAS_H
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