534504cf7a
## Summary
* Consolidate chapter page data into single file
* Header structure of the file stays the same, following the page count,
we now put a LUT offset
* The page data is all then appended to this file
* Finally the LUT is appended to the end of the file, and the page count
is updated
* This will also significantly improve the duration of cache cleanup
which takes a while to scan the directory and cleanup content
* Remove page file version as it's all tied up into the section file now
* Bumped section file version to 7
* Moved section content into sub directory
* Updated docs
## Additional Context
* Benchmarks:
* Generating 74 pages of content from a chapter in Jade Legacy took:
* master: 6,229ms
* this PR: 1,305ms
* Speedup of 79%
* Generating 207 pages of content from Livesuit book:
* With progress bar UI updates:
* master: 24,250ms
* this PR: 8,063ms
* Speedup of 67%
* Without progress bar UI updates:
* master: 13,055ms
* this PR: 3,600ms
* Speedup of 72%
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
#pragma once
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#include <functional>
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#include <memory>
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#include "Epub.h"
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class Page;
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class GfxRenderer;
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class Section {
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std::shared_ptr<Epub> epub;
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const int spineIndex;
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GfxRenderer& renderer;
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std::string filePath;
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File file;
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void writeSectionFileHeader(int fontId, float lineCompression, bool extraParagraphSpacing, int viewportWidth,
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int viewportHeight);
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size_t onPageComplete(std::unique_ptr<Page> page);
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public:
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int pageCount = 0;
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int currentPage = 0;
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explicit Section(const std::shared_ptr<Epub>& epub, const int spineIndex, GfxRenderer& renderer)
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: epub(epub),
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spineIndex(spineIndex),
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renderer(renderer),
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filePath(epub->getCachePath() + "/sections/" + std::to_string(spineIndex) + ".bin") {}
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~Section() = default;
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bool loadSectionFile(int fontId, float lineCompression, bool extraParagraphSpacing, int viewportWidth,
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int viewportHeight);
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bool clearCache() const;
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bool createSectionFile(int fontId, float lineCompression, bool extraParagraphSpacing, int viewportWidth,
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int viewportHeight, const std::function<void()>& progressSetupFn = nullptr,
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const std::function<void(int)>& progressFn = nullptr);
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std::unique_ptr<Page> loadPageFromSectionFile();
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};
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