webmscore

repository·webmscore·Indexed 41 days ago

https://github.com/librescore/webmscore

A WebAssembly port of MuseScore's core library (libmscore) version 1.2.1. It enables score parsing, music metadata extraction, and the generation of audio, MIDI, MusicXML, SVG, PNG, and PDF sheets directly in browsers or Node.js.

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What's inside webmscore

  1. Overview of MuseScore Fonts

    webmscore

    The fonts directory contains the fonts used internally by MuseScore and the source files used to generate them. Sources are provided in the .sfd format, which is the native format for FontForge.

    Font Maintenance Status

    When working with these fonts, note the following maintenance rules:

    • Maintained by MuseScore project: edwin, gootville, leland, mscore, musejazz.
    • Not maintained by MuseScore (DO NOT EDIT): bravura, petaluma, finalemaestro, finalebroadway, smufl.
    • Community-driven: campania (Roman numeral analysis) is open source and encourages community contributions at its main site.

    If an .sfd file is present in a directory, it indicates the font is maintained or customized by the MuseScore community.

  2. Use UTF8-CPP for portable UTF-8 handling in C++

    webmscore

    UTF8-CPP is a lightweight, generic, and portable C++ library designed to handle UTF-8 encoded Unicode strings. It is compatible with C++98 and provides enhanced support for C++11 and later standards. The library works with standard STL algorithms and iterators, making it easy to integrate with various string classes.

    #include "utf8.h"
    
    // Example of basic usage pattern
    // The library provides functions in the `utf8` namespace
    // that work with iterators or C++11 string types.
  3. GoogleTest features and capabilities

    webmscore

    GoogleTest provides a comprehensive suite of testing tools for C++ developers, including:

    • Test Discovery: Automatically finds tests in your code.
    • Assertions: A rich set of built-in assertions and the ability to define custom ones.
    • Failure Modes: Support for both fatal and non-fatal failures.
    • Parameterized Testing: Support for both value-parameterized and type-parameterized tests.
    • Death Tests: Ability to test that a piece of code causes a program to crash/exit.
    • Reporting: Generation of XML test reports for integration with CI/CD pipelines.
    • Execution Options: Various options for controlling how tests are run.
  4. About the Edwin font family

    webmscore
    The Edwin font family (including Roman, Italic, Bold, and Bold Italic) is a font set used for music notation. Version 0.54 is provided in Type 1 and OpenType-CFF formats. It is a renamed and modified version of the C059 font family from the Core 35 set, specifically adapted for the requirements of MuseScore notation software.
  5. Features of the Simple Profiler

    webmscore

    The haw_profiler provides the following capabilities:

    • Embedded Profiling: Can run anywhere and anytime within your application.
    • Duration Measurement: Supports measuring both individual function durations and specific execution steps.
    • Low Overhead: Designed to have very small performance impact.
    • Flexible Control: Can be enabled or disabled via compile-time settings or runtime logic.
    • Thread Safety: Implemented to be thread-safe without the use of mutexes.
    • Customizable Output: Supports a custom data printer for reporting results.
  6. About Leland music fonts

    webmscore

    Leland (and Leland Text) Version 0.77 are OpenType-CFF music fonts distributed under the SIL Open Font License (OFL), Version 1.1.

    Key characteristics:

    • SMuFL Compliance: The fonts are compliant with the Standard Music Font Layout (SMuFL), which maps musical symbols to the Unicode Private Use Area.
    • Compatibility: Works with MuseScore 3.6+ and other SMuFL-compatible software. It does not work in Sibelius or Finale versions prior to v27.
  7. What is the Bravura music font?

    webmscore
    Bravura is an OpenType music font used for music notation. It serves as the reference font for the Standard Music Font Layout (SMuFL), which is a standard for mapping musical symbols into the Unicode Private Use Area. This ensures that musical symbols are format-independent and consistent across different software.
  8. Enable multi-threaded tests in GoogleTest

    webmscore

    GoogleTest is thread-safe if the pthread library is available. You can verify this in your code by checking the GTEST_IS_THREADSAFE macro (it is defined as 1 if thread-safe).

    If your environment does not automatically detect pthread, you can force the setting via CMake flags:

    • -DGTEST_HAS_PTHREAD=1 (Enable)
    • -DGTEST_HAS_PTHREAD=0 (Disable)

    Warning: If you use your own build script (not CMake), you must manually add the necessary pthread flags to your compiler and linker.

  9. Understand Note Pitch Values

    webmscore

    In webmscore, note pitches are represented using MIDI pitch values. This value indicates the absolute height of the note regardless of its enharmonic spelling (e.g., whether it is written as C♯ or D♭).

    To access this value, use the Ms::PluginAPI::Note::pitch property.

    If you need to retrieve the specific enharmonic spelling used for a note (the musical name), use the Tonal Pitch Class instead of the pitch value.

  10. Understand the Standard Music Font Layout (SMuFL) specification

    webmscore

    SMuFL is a specification that provides a standardized way to map musical symbols to the Private Use Area in Unicode’s Basic Multilingual Plane. This allows for a single, format-independent font mapping that can be used across different music notation software.

    If you are working with musical notation in webmscore or other software, SMuFL ensures that musical glyphs are consistently mapped and rendered regardless of the specific font format used.