Sonic Visualiser

h1. Building SV v3.1 on Windows

Versions 3.0+ of Sonic Visualiser are primarily 64-bit for Windows, although the 32-bit version is still supported.

 * Both builds can be run from Qt Creator, or from a command prompt using batch build scripts provided. The release packages are built using the batch scripts.

 * The *64-bit version* is built using the *Microsoft Visual C++ compiler*. Install 64-bit Microsoft Visual Studio 2017 Community Edition and then Qt 5.11 (or latest 5.x).

 * The *32-bit version* is built using the *MinGW compiler*. Install Qt 5.11 (or latest 5.x) with Qt Creator and ensure that the 32-bit MinGW option is available.

 * The official 64-bit installer also includes some helper binaries from the 32-bit build, enabling it to use 32-bit Vamp plugins as well as 64-bit ones. So to make our official 64-bit installer, we actually have to complete both builds.

 * The installers are built using "WiX":http://wixtoolset.org/, so you must have that installed. The path to WiX is hardcoded in our script and at the time of writing it assumes WiX v3.11.

 * We use the "Repoint":https://github.com/cannam/repoint source dependency manager. Ensure the required SML runtime for this is available (either "SML/NJ":http://smlnj.org/ or "Poly/ML":http://www.polyml.org/), and then run @.\repoint install@ in a command prompt or Powershell window before opening a build project or starting a build.

In both cases (32 and 64 bit) the dependent libraries we use are found in the @sv-dependency-builds@ subrepo. Prior to the switch to using the Repoint dependency manager, this subrepo was checked out by Mercurial as a matter of course with the SV repo; after the switch to Repoint, it is one of the library modules that is installed by running @.\repoint install@. There should be no other external dependencies besides Qt and the runtime libraries it needs.

h2. Which SV branch to use

Use the @default@ branch of the SV Mercurial repo unless you have a particular reason to know otherwise.

h2. 32-bit build

h4. Build with Qt Creator

This process is similar to that introduced in v2.1 (see [[here|WindowsBuild21]]), except that we now *do* use a shadow build.

 * Check out the correct branch (probably @default@ as described above)

 * Run @.\repoint install@ to get the code dependencies

 * Open the main @sonic-visualiser.pro@ project in Qt Creator

 * Set up a *release build* using *Desktop Qt 5.11.0 MinGW 32-bit* as a *shadow build*

 * "Run qmake" and "Rebuild All"

There is still one unresolved manual step before you can run Sonic Visualiser:

 * Go to the build directory (e.g. @build-sonic-visualiser-Desktop_Qt_5_11_0_MinGW_32bit-Release@) and copy the file @checker\release\vamp-plugin-load-checker.exe@ to the top-level @release@ directory

If the build was successful, you should now be able to run Sonic Visualiser from within the IDE. (You can't yet run the binary from the Windows Explorer, as Qt and other dependencies won't be found.)

You can also run individual unit test suites by selecting them as target executable in Qt Creator.

h4. Build using batch script

 * Check out the correct branch (probably @default@ as described above)

 * Open a command prompt and cd to the main @sonic-visualiser@ directory

 * Run @deploy\win64\build-32.bat@ (yes, it is in the @win64@ directory)

The built executables will be left in @build-win32\release@.

Note that the build script also copies in the necessary Qt and C++ runtime libraries for the executables, so it should be possible to run the resulting application just by opening @build-win32\release\Sonic Visualiser.exe@ from Windows Explorer.

h2. 64-bit build

h4. Build with Qt Creator

 * Check out the correct branch (probably @default@ as described above)

 * Run @.\repoint install@ to get the code dependencies

 * Open the main @sonic-visualiser.pro@ project in Qt Creator

 * Set up a *release build* using *Desktop Qt 5.11.0 MSVC 64-bit* as a *shadow build*

 * "Run qmake" and "Rebuild All"

If the code is already checked out for a 32-bit build, then it should be possible to add or select the 64-bit MSVC "kit" as a target in Qt Creator and then build that from the same directory as a separate shadow build, rather than having to check out the code again.

And we have the same unresolved manual step as for the 32-bit build:

 * Go to the build directory (e.g. @build-sonic-visualiser-Desktop_Qt_5_11_0_MSVC2015_64bit-Release@) and copy the file @checker\release\vamp-plugin-load-checker.exe@ to the top-level @release@ directory

If the build was successful, you should now be able to run Sonic Visualiser from within the IDE. (You can't yet run the binary from the Windows Explorer, as Qt and other dependencies won't be found.)

You can also run individual unit test suites by selecting them as target executable in Qt Creator.

h4. Build using batch script

 * Check out the correct branch (probably @default@ as described above)

 * Open a command prompt and cd to the main @sonic-visualiser@ directory

 * Run @deploy\win64\build-64.bat@

The built executables will be left in @build-win64\release@.

Note that the build script also copies in the necessary Qt and C++ runtime libraries for the executables, so it should be possible to run the resulting application just by opening @build-win32\release\Sonic Visualiser.exe@ from Windows Explorer.

h2. Installers

We create both 32-bit and 64-bit installers at the same time using the script @deploy\win64\build-and-package.bat@. This does a complete rebuild from clean every time it is run.

The 64-bit installer needs files from both the 64- and 32-bit builds.

The general principle is that the script runs both the @build-32@ and @build-64@ batch scripts, then runs WiX twice using two separate installer definition files. The 32-bit installer is defined by @deploy\win32\sonic-visualiser.wxs@ and the 64-bit one by @deploy\win64\sonic-visualiser.wxs@. Both files have the SV version and C++-runtime-related paths hardcoded, so they will need inspecting and updating for each new release.