Add heap memory reporting for fonts and sections

Implements reportMemory() methods across SdCardFont, SdCardFontManager, and Section classes to track resident heap usage. Adds heap audit logging in EpubReaderActivity to attribute memory to fonts, framebuffer, section data, and other components for measurement-driven optimization.
2026-07-14 12:08:29 -04:00
parent 4d19d38152
commit ba92cb902e
7 changed files with 74 additions and 0 deletions
@@ -104,6 +104,10 @@ class SdCardFont {
    uint32_t uniqueGlyphs = 0;
    uint32_t bitmapBytes = 0;
  };
+  // Log per-style resident heap (full tables + kept-if-fits mini arenas +
+  // advance tables + overflow bitmaps) and return the total in bytes. Pure
+  // accounting — no allocation, no state change.
+  size_t reportMemory() const;
  void logStats(const char* label = "SDCF");
  void resetStats();
  const Stats& getStats() const { return stats_; }