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On ESP32-C3 with USB CDC, Serial.printf() blocks indefinitely when USB is not connected. This caused device freezes when booted without USB. Solution: Call Serial.setTxTimeoutMs(0) after Serial.begin() to make all Serial output non-blocking. Also added if (Serial) guards to high-traffic logging paths in EpubReaderActivity as belt-and-suspenders protection. Includes documentation of the debugging process and Serial call inventory. Also applies clang-format to fix pre-existing formatting issues.
65 lines
2.7 KiB
C++
65 lines
2.7 KiB
C++
#pragma once
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#include <freertos/FreeRTOS.h>
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#include <freertos/semphr.h>
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#include <freertos/task.h>
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#include <functional>
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#include "../Activity.h"
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class HomeActivity final : public Activity {
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TaskHandle_t displayTaskHandle = nullptr;
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SemaphoreHandle_t renderingMutex = nullptr;
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int selectorIndex = 0;
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bool updateRequired = false;
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bool hasContinueReading = false;
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bool hasOpdsUrl = false;
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bool hasCoverImage = false;
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// Static cover buffer - persists across activity changes to avoid reloading from SD
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static bool coverRendered; // Track if cover has been rendered once
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static bool coverBufferStored; // Track if cover buffer is stored
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static uint8_t* coverBuffer; // HomeActivity's own buffer for cover image
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static std::string cachedCoverPath; // Path of the cached cover (to detect book changes)
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std::string lastBookTitle;
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std::string lastBookAuthor;
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std::string coverBmpPath;
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const std::function<void()> onContinueReading;
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const std::function<void()> onListsOpen; // Goes to pinned list or lists tab
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const std::function<void()> onMyLibraryOpen;
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const std::function<void()> onSettingsOpen;
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const std::function<void()> onFileTransferOpen;
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const std::function<void()> onOpdsBrowserOpen;
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static void taskTrampoline(void* param);
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[[noreturn]] void displayTaskLoop();
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void render();
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int getMenuItemCount() const;
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bool storeCoverBuffer(); // Store frame buffer for cover image
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bool restoreCoverBuffer(); // Restore frame buffer from stored cover
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void freeCoverBuffer(); // Free the stored cover buffer
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public:
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// Free cover buffer from external activities (e.g., when entering reader to reclaim memory)
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static void freeCoverBufferIfAllocated();
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// Preload cover buffer from external activities (e.g., MyLibraryActivity) for instant Home screen
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// Returns true if cover was successfully preloaded or already cached
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static bool preloadCoverBuffer();
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explicit HomeActivity(GfxRenderer& renderer, MappedInputManager& mappedInput,
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const std::function<void()>& onContinueReading, const std::function<void()>& onListsOpen,
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const std::function<void()>& onMyLibraryOpen, const std::function<void()>& onSettingsOpen,
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const std::function<void()>& onFileTransferOpen, const std::function<void()>& onOpdsBrowserOpen)
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: Activity("Home", renderer, mappedInput),
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onContinueReading(onContinueReading),
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onListsOpen(onListsOpen),
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onMyLibraryOpen(onMyLibraryOpen),
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onSettingsOpen(onSettingsOpen),
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onFileTransferOpen(onFileTransferOpen),
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onOpdsBrowserOpen(onOpdsBrowserOpen) {}
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void onEnter() override;
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void onExit() override;
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void loop() override;
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};
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