Merge branch 'perf-lut-cache' of https://github.com/jpirnay/crosspoint-reader into mybuild

2026-03-25 18:09:53 +01:00
parent 36b471891d 7496bf95ce
commit a5fa684d2b
2 changed files with 63 additions and 20 deletions
@@ -3,6 +3,7 @@
 #include <memory>
 #include <optional>
 #include <string>
+#include <vector>

 #include "Epub.h"

@@ -15,6 +16,7 @@ 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,
@@ -34,7 +36,7 @@ class Section {
  bool loadSectionFile(int fontId, float lineCompression, bool extraParagraphSpacing, uint8_t paragraphAlignment,
                       uint16_t viewportWidth, uint16_t viewportHeight, bool hyphenationEnabled, bool embeddedStyle,
                       uint8_t imageRendering);
-  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,
                         uint8_t imageRendering, const std::function<void(int)>& progressFn = nullptr);