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mirror of https://github.com/ocornut/imgui.git synced 2024-12-04 20:18:28 +01:00
imgui/examples/example_sdl_opengl3
ocornut 5386ddcd05 Merge branch 'master' into docking
# Conflicts:
#	backends/imgui_impl_glfw.cpp
#	backends/imgui_impl_sdl.cpp
#	examples/example_emscripten_opengl3/main.cpp
#	examples/example_glfw_opengl2/main.cpp
#	examples/example_glfw_opengl3/main.cpp
#	examples/example_glfw_vulkan/main.cpp
#	examples/example_glut_opengl2/main.cpp
#	examples/example_sdl_directx11/main.cpp
#	examples/example_sdl_opengl2/main.cpp
#	examples/example_sdl_opengl3/main.cpp
#	examples/example_sdl_vulkan/main.cpp
#	examples/example_win32_directx10/main.cpp
#	examples/example_win32_directx11/main.cpp
#	examples/example_win32_directx12/main.cpp
#	examples/example_win32_directx9/main.cpp
#	imgui_demo.cpp
2023-02-02 18:31:26 +01:00
..
build_win32.bat Backends: OpenGL3: Embed our own minimal GL loader (amends). (#4445) 2021-08-19 16:24:59 +02:00
example_sdl_opengl3.vcxproj Backends: OpenGL3: Embed our own minimal GL loader based on gl3w and use it in SDL/GLFW examples. (#4445) 2021-08-19 16:24:58 +02:00
example_sdl_opengl3.vcxproj.filters Examples: updated VS projects with .natvis file under imgui/ 2022-09-14 14:17:47 +02:00
main.cpp Merge branch 'master' into docking 2023-02-02 18:31:26 +01:00
Makefile CI: Fixes for OSX + explicitely request C++11. 2022-02-15 17:25:11 +01:00
Makefile.emscripten Examples: Made example_sdl_opengl3 and example_glfw_opengl3 build with Emscripten. Removed dedicated examples. (#2492, #2494, #3699, #3705) 2023-02-02 18:08:17 +01:00
README.md Examples: Made example_sdl_opengl3 and example_glfw_opengl3 build with Emscripten. Removed dedicated examples. (#2492, #2494, #3699, #3705) 2023-02-02 18:08:17 +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_sdl2_folder
cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.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_sdl.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console

Linux and similar Unixes

Use our Makefile or directly:

c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends
  main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp
  `sdl2-config --libs` -lGL -ldl

macOS

Use our Makefile or directly:

brew install sdl2
c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends
  main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp
  `sdl2-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).