| |
| # Configuration |
| |
| Dear ImGui outputs 16-bit vertex indices by default. |
| Allegro doesn't support them natively, so we have two solutions: convert the indices manually in imgui_impl_allegro5.cpp, or compile dear imgui with 32-bit indices. |
| You can either modify imconfig.h that comes with Dear ImGui (easier), or set a C++ preprocessor option IMGUI_USER_CONFIG to find to a filename. |
| We are providing `imconfig_allegro5.h` that enables 32-bit indices. |
| Note that the backend supports _BOTH_ 16-bit and 32-bit indices, but 32-bit indices will be slightly faster as they won't require a manual conversion. |
| |
| # How to Build |
| |
| ### On Ubuntu 14.04+ and macOS |
| |
| ```bash |
| g++ -DIMGUI_USER_CONFIG=\"examples/example_allegro5/imconfig_allegro5.h\" -I .. -I ../.. main.cpp ../../backends/imgui_impl_allegro5.cpp ../../imgui*.cpp -lallegro -lallegro_main -lallegro_primitives -o allegro5_example |
| ``` |
| |
| On macOS, install Allegro with homebrew: `brew install allegro`. |
| |
| ### On Windows with Visual Studio's CLI |
| |
| You may install Allegro using vcpkg: |
| ``` |
| git clone https://github.com/Microsoft/vcpkg |
| cd vcpkg |
| bootstrap-vcpkg.bat |
| vcpkg install allegro5 --triplet=x86-windows ; for win32 |
| vcpkg install allegro5 --triplet=x64-windows ; for win64 |
| vcpkg integrate install ; register include / libs in Visual Studio |
| ``` |
| |
| Build: |
| ``` |
| set ALLEGRODIR=path_to_your_allegro5_folder |
| cl /Zi /MD /I %ALLEGRODIR%\include /DIMGUI_USER_CONFIG=\"examples/example_allegro5/imconfig_allegro5.h\" /I .. /I ..\.. main.cpp ..\..\backends\imgui_impl_allegro5.cpp ..\..\imgui*.cpp /link /LIBPATH:%ALLEGRODIR%\lib allegro-5.0.10-monolith-md.lib user32.lib |
| ``` |
