Sonic Visualiser

h1. Building SV v3.0 installers on Windows

Version 3.0 of Sonic Visualiser now has a 64-bit version for Windows. The 32-bit version is also still supported.

 * The *64-bit version* is built using Qt Creator with the *Microsoft Visual C++ compiler*. Install 64-bit Microsoft Visual Studio 2015 Community Edition and then Qt 5.7 (or latest 5.x).

 * The *32-bit version* is built using Qt Creator with the *MinGW compiler*. Install Qt 5.7 (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 @build.cmd@ script and at the time of writing it assumes WiX v3.9.

 * Versions more recent than the 3.0.3 release (including current Hg default branch at the time of writing) use the "Vext":https://github.com/cannam/vext 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 run "./vext install" before opening any build project.

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 Vext dependency manager, this subrepo was checked out by Mercurial as a matter of course with the SV repo; after the switch to Vext, it is one of the library modules that is installed by running @./vext 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 and installer

h4. Build

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 @./vext install@ to get the code dependencies

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

 * Set up a *release build* using *Desktop Qt 5.7.0 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_7_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. Installer

The principle here is:

 # Copy dependent libraries into the @release@ directory within the build dir, so that Sonic Visualiser can be run directly without IDE support

 # Package up the installer using the @build.cmd@ script that runs WiX

For the Qt 5.7 installation I'm currently using, this means:

 * From @C:\Qt57\5.7\mingw53_32\bin@, copy the following files into the @release@ directory: @Qt5Core.dll@ @Qt5Gui.dll@ @Qt5Network.dll@ @Qt5Svg.dll@ @Qt5Widgets.dll@ @Qt5Xml.dll@ @libgcc_s_dw2-1.dll@ @libstdc++-6.dll@ @libwinpthread-1.dll@

 * From @C:\Qt57\5.7\mingw53_32\plugins\platforms@, copy the following files: @qminimal.dll@ @qwindows.dll@

 * Check that the Sonic Visualiser executable in that directory starts up properly when double-clicked

 * In a command prompt window, cd to the @deploy\win32@ directory in the Sonic Visualiser source tree and run @.\build.cmd@

Note that the @build.cmd@ script has the path to the shadow build folder hardcoded, so you may need to tweak that.

h2. 64-bit build and installer

h4. Build

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

 * Run @./vext install@ to get the code dependencies

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

 * Set up a *release build* using *Desktop Qt 5.7.0 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_7_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. Installer

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

The principle is:

 # Copy dependent 64-bit libraries into the @release@ directory within the build dir, so that Sonic Visualiser can be run directly without IDE support

 # Copy helper programs from the 32-bit build into the @release@ directory, renaming them to have @-32@ at the ends of their names

 # Copy (the smaller number of) dependent 32-bit libraries that the 32-bit helper programs need into the @release@ directory

 # Package up the installer using the @build.cmd@ script that runs WiX

For the Qt 5.7 installation I'm currently using, this means:

 * From @C:\Qt57\5.7\msvc2015_64\bin@, copy the following files into the @release@ directory: @Qt5Core.dll@ @Qt5Gui.dll@ @Qt5Network.dll@ @Qt5Svg.dll@ @Qt5Widgets.dll@ @Qt5Xml.dll@ 

 * From @C:\Qt57\5.7\msvc2015_64\plugins\platforms@, copy the following files: @qminimal.dll@ @qwindows.dll@

 * From the 32-bit build's @release@ directory, copy the files @vamp-plugin-load-checker.exe@ and @piper-vamp-simple-server.exe@, renaming them to @vamp-plugin-load-checker-32.exe@ and @piper-vamp-simple-server-32.exe@ respectively (so as not to overwrite the existing 64-bit versions of these files)

 * From @C:\Qt57\5.7\mingw53_32\bin@, copy: @libgcc_s_dw2-1.dll@ @libstdc++-6.dll@ @libwinpthread-1.dll@

 * (From the SV build directory's @sv-dependency-builds/win64/lib@ directory: copy @libsndfile-1.dll@ -- this is technically optional as the installer script will include it regardless, but it's necessary if you want to test SV by double-clicking)

 * Check that the Sonic Visualiser executable in that directory starts up properly when double-clicked

 * In a command prompt window, cd to the @deploy\win64@ directory in the Sonic Visualiser source tree and run @.\build.cmd@

Note that the @build.cmd@ script has the path to the shadow build folder hardcoded, so you may need to tweak that. The WiX installer config file (@sonic-visualiser.wxs@) also has some hardcoded paths, for the Microsoft Visual Studio runtime libraries in @C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\redist\x64\Microsoft.VC140.CRT@, which may need to be updated.