imgui/examples/example_sdl3_opengl3
2023-03-15 17:09:09 +01:00
..
build_win32.bat Backends: SDL3: update to run with SDL3. Examples: Add SDL3+Gl example. Remove some version checks. (#6146) 2023-02-07 16:07:53 +01:00
example_sdl3_opengl3.vcxproj Examples: Windows: Added 'misc/debuggers/imgui.natstepfilter' file to all Visual Studio projects. (#3038) 2023-03-15 17:09:09 +01:00
example_sdl3_opengl3.vcxproj.filters Examples: Windows: Added 'misc/debuggers/imgui.natstepfilter' file to all Visual Studio projects. (#3038) 2023-03-15 17:09:09 +01:00
main.cpp Examples: SDL3: Updated for latest WIP SDL3 branch. (#6243) 2023-03-15 15:04:07 +01:00
Makefile Backends: SDL3: update to run with SDL3. Examples: Add SDL3+Gl example. Remove some version checks. (#6146) 2023-02-07 16:07:53 +01:00
Makefile.emscripten Backends: SDL3: update to run with SDL3. Examples: Add SDL3+Gl example. Remove some version checks. (#6146) 2023-02-07 16:07:53 +01:00
README.md Backends: SDL3: update to run with SDL3. Examples: Add SDL3+Gl example. Remove some version checks. (#6146) 2023-02-07 16:07:53 +01:00

How to Build

Windows with Visual Studio's IDE

Use the provided project file (.vcxproj). Add to solution (imgui_examples.sln) if necessary.

Windows with Visual Studio's CLI

Use build_win32.bat or directly:

set SDL2_DIR=path_to_your_sdl3_folder
cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl3.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl3_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL3.lib opengl32.lib /subsystem:console
#          ^^ include paths     ^^ source files                                                                                    ^^ output exe                    ^^ output dir   ^^ libraries
# or for 64-bit:
cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl3.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl3_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL3.lib SDL2mainopengl32.lib /subsystem:console

Linux and similar Unixes

Use our Makefile or directly:

c++ `sdl3-config --cflags` -I .. -I ../.. -I ../../backends
  main.cpp ../../backends/imgui_impl_sdl3.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp
  `sdl3-config --libs` -lGL -ldl

macOS

Use our Makefile or directly:

brew install sdl3
c++ `sdl3-config --cflags` -I .. -I ../.. -I ../../backends
  main.cpp ../../backends/imgui_impl_sdl3.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp
  `sdl3-config --libs` -framework OpenGl -framework CoreFoundation

Emscripten

Building

You need to install Emscripten from https://emscripten.org/docs/getting_started/downloads.html, and have the environment variables set, as described in https://emscripten.org/docs/getting_started/downloads.html#installation-instructions

  • Depending on your configuration, in Windows you may need to run emsdk/emsdk_env.bat in your console to access the Emscripten command-line tools.
  • You may also refer to our Continuous Integration setup for Emscripten setup.
  • Then build using make -f Makefile.emscripten while in the current directory.

Running an Emscripten project

To run on a local machine:

  • make -f Makefile.emscripten serve will use Python3 to spawn a local webserver, you can then browse http://localhost:8000 to access your build.
  • Otherwise, generally you will need a local webserver. Quoting https://emscripten.org/docs/getting_started:
    "Unfortunately several browsers (including Chrome, Safari, and Internet Explorer) do not support file:// XHR requests, and cant load extra files needed by the HTML (like a .wasm file, or packaged file data as mentioned lower down). For these browsers youll need to serve the files using a local webserver and then open http://localhost:8000/hello.html."
  • Emscripten SDK has a handy emrun command: emrun web/index.html --browser firefox which will spawn a temporary local webserver (in Firefox). See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
  • You may use Python 3 builtin webserver: python -m http.server -d web (this is what make serve uses).
  • You may use Python 2 builtin webserver: cd web && python -m SimpleHTTPServer.
  • If you are accessing the files over a network, certain browsers, such as Firefox, will restrict Gamepad API access to secure contexts only (e.g. https only).