| // Copyright 2016 The PDFium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef CORE_FXGE_CFX_GLYPHCACHE_H_ |
| #define CORE_FXGE_CFX_GLYPHCACHE_H_ |
| |
| #include <map> |
| #include <memory> |
| #include <tuple> |
| |
| #include "core/fxcrt/bytestring.h" |
| #include "core/fxcrt/observed_ptr.h" |
| #include "core/fxcrt/retain_ptr.h" |
| #include "core/fxge/cfx_face.h" |
| |
| #if defined(_SKIA_SUPPORT_) |
| #include "core/fxge/fx_font.h" |
| #include "third_party/skia/include/core/SkRefCnt.h" // nogncheck |
| #endif |
| |
| class CFX_Font; |
| class CFX_GlyphBitmap; |
| class CFX_Matrix; |
| class CFX_Path; |
| struct CFX_TextRenderOptions; |
| |
| class CFX_GlyphCache final : public Retainable, public Observable { |
| public: |
| CONSTRUCT_VIA_MAKE_RETAIN; |
| |
| const CFX_GlyphBitmap* LoadGlyphBitmap(const CFX_Font* pFont, |
| uint32_t glyph_index, |
| bool bFontStyle, |
| const CFX_Matrix& matrix, |
| int dest_width, |
| int anti_alias, |
| CFX_TextRenderOptions* text_options); |
| const CFX_Path* LoadGlyphPath(const CFX_Font* pFont, |
| uint32_t glyph_index, |
| int dest_width); |
| int GetGlyphWidth(const CFX_Font* font, |
| uint32_t glyph_index, |
| int dest_width, |
| int weight); |
| |
| RetainPtr<CFX_Face> GetFace() { return m_Face; } |
| FXFT_FaceRec* GetFaceRec() { return m_Face ? m_Face->GetRec() : nullptr; } |
| |
| #if defined(_SKIA_SUPPORT_) |
| CFX_TypeFace* GetDeviceCache(const CFX_Font* pFont); |
| static void InitializeGlobals(); |
| static void DestroyGlobals(); |
| #endif |
| |
| private: |
| explicit CFX_GlyphCache(RetainPtr<CFX_Face> face); |
| ~CFX_GlyphCache() override; |
| |
| using SizeGlyphCache = std::map<uint32_t, std::unique_ptr<CFX_GlyphBitmap>>; |
| // <glyph_index, width, weight, angle, vertical> |
| using PathMapKey = std::tuple<uint32_t, int, int, int, bool>; |
| // <glyph_index, dest_width, weight> |
| using WidthMapKey = std::tuple<uint32_t, int, int>; |
| |
| std::unique_ptr<CFX_GlyphBitmap> RenderGlyph(const CFX_Font* pFont, |
| uint32_t glyph_index, |
| bool bFontStyle, |
| const CFX_Matrix& matrix, |
| int dest_width, |
| int anti_alias); |
| std::unique_ptr<CFX_GlyphBitmap> RenderGlyph_Nativetext( |
| const CFX_Font* pFont, |
| uint32_t glyph_index, |
| const CFX_Matrix& matrix, |
| int dest_width, |
| int anti_alias); |
| CFX_GlyphBitmap* LookUpGlyphBitmap(const CFX_Font* pFont, |
| const CFX_Matrix& matrix, |
| const ByteString& FaceGlyphsKey, |
| uint32_t glyph_index, |
| bool bFontStyle, |
| int dest_width, |
| int anti_alias); |
| RetainPtr<CFX_Face> const m_Face; |
| std::map<ByteString, SizeGlyphCache> m_SizeMap; |
| std::map<PathMapKey, std::unique_ptr<CFX_Path>> m_PathMap; |
| std::map<WidthMapKey, int> m_WidthMap; |
| #if defined(_SKIA_SUPPORT_) |
| sk_sp<SkTypeface> m_pTypeface; |
| #endif |
| }; |
| |
| #endif // CORE_FXGE_CFX_GLYPHCACHE_H_ |