Windows

Prerequisites

Make sure the following have been installed:

• Visual C++ 2013 Express or later, available for free

  • http://www.visualstudio.com/downloads/download-visual-studio-vs#d-express-windows-8

• Chromium depot_tools

  • http://www.chromium.org/developers/how-tos/depottools

• git

  • Either use the mysygit installed by depot_tools
  • Or install msys git: http://msysgit.github.io/ yourself

• Python 2.7.x (if you're not planning to use cygwin)

  • available for free download at http://www.python.org/download/releases/
  • make sure the installer changes your %PATH% environment variable to include the directory with the "python.exe" binary

• Cygwin (optional, but useful if you want to use git)

  • Download from http://cygwin.org/setup.exe
  • use any mirror you like; http://lug.mtu.edu works well
  • Cygwin installs a minimum of options. Add these packages if they aren't already selected:
    • Devel git
    • Devel subversion
    • Editors vim
      • to fix arrows in insert, copy /usr/share/vim/vim73/vimrc_example.vim to ~/.vimrc
    • Net ca-certificates
    • Python python
    • Utils patch
    • Utils util-linux
  • set the windows envionment variable CYGWIN to nodosfilewarning

Check out the source code

see https://sites.google.com/site/skiadocs/developer-documentation/contributing-code/downloading

Generate Visual Studio projects

We use the open-source gyp tool to generate Visual Studio projects (and analogous build scripts on other platforms) from our multi-platform "gyp" files.

You can generate the Visual Studio projects by running gyp_skia, as follows:

cd %SKIA_CHECKOUT_DIR%
python gyp_skia

This will produce Visual Studio projects in the %SKIA_CHECKOUT_DIR%\out directory.

Build and run tests from the command line

ninja -C out\Debug dm
out\Debug\dm

Normally you should run tests in Debug mode (SK_DEBUG is defined, and debug symbols are included in the binary). If you would like to build the Release version instead:

ninja -C out\Release dm
out\Release\dm

Build and run tests in the Visual Studio IDE

• Generate the Visual Studio project files by running gyp_skia as described above
• Open a File Explorer window pointing at the %SKIA_CHECKOUT_DIR%\out\gyp directory
• Double-click on dm.sln to start Visual Studio and load the project
• When Visual Studio starts, you may see an error dialog stating that "One or more projects in the solution were not loaded correctly"... but there's probably nothing to worry about.
• In the "Solution Explorer" window, right-click on the "dm" project and select "Set as StartUp Project".
• In the "Debug" menu, click on "Start Debugging" (or just press F5). If you get a dialog saying that the project is out of date, click on "Yes" to rebuild it.
• Once the build is complete, you should see console output from the tests in the "Output" window at lower right.

Build and run SampleApp in Visual Studio

• Generate the Visual Studio project files by running gyp_skia as described above
• Open a File Explorer window pointing at the %SKIA_INSTALLDIR%\trunk\out\gyp directory
• Double-click on SampleApp.sln
• When Visual Studio starts, you may see an error dialog stating that "One or more projects in the solution were not loaded correctly"... but there's probably nothing to worry about.
• In the "Debug" menu, click on "Start Debugging" (or just press F5). If you get a dialog saying that the project is out of date, click on "Yes" to rebuild it.
• Once the build is complete, you should see a window with various example graphics. To move through the sample app, use the following keypresses:
  • right-arrow key: cycle through different test pages
  • left-arrow key: cycle through rendering methods for each test page
  • other keys are defined in SampleApp.cpp’s SampleWindow::onHandleKey() and SampleWindow::onHandleChar() methods

Build and run nanobench (performance testbench) from the command line

Since nanobench tests performance, it usually makes more sense to run it in Release mode.

ninja -C out\Release nanobench
out\Release\nanobench