Establish LUT cache

2026-02-28 16:19:45 +01:00
parent 67fc407d63
commit 19c197e020
2 changed files with 37 additions and 20 deletions
@@ -1,6 +1,7 @@
 #pragma once
 #include <functional>
 #include <memory>
+#include <vector>

 #include "Epub.h"

@@ -13,6 +14,7 @@ class Section {
  GfxRenderer& renderer;
  std::string filePath;
  FsFile file;
+  std::vector<uint32_t> lut;  // Cached page byte-offsets; loaded once, avoids per-page LUT seek

  void writeSectionFileHeader(int fontId, float lineCompression, bool extraParagraphSpacing, uint8_t paragraphAlignment,
                              uint16_t viewportWidth, uint16_t viewportHeight, bool hyphenationEnabled,
@@ -31,7 +33,7 @@ class Section {
  ~Section() = default;
  bool loadSectionFile(int fontId, float lineCompression, bool extraParagraphSpacing, uint8_t paragraphAlignment,
                       uint16_t viewportWidth, uint16_t viewportHeight, bool hyphenationEnabled, bool embeddedStyle);
-  bool clearCache() const;
+  bool clearCache();
  bool createSectionFile(int fontId, float lineCompression, bool extraParagraphSpacing, uint8_t paragraphAlignment,
                         uint16_t viewportWidth, uint16_t viewportHeight, bool hyphenationEnabled, bool embeddedStyle,
                         const std::function<void()>& popupFn = nullptr);