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0ad/source/third_party/glad/README.md
Ralph Sennhauser 50aae8763f Improve script generating glad headers 
The script assumes glad got cloned into glad subdirectory. This is the
case if you follow the procedure outlined in the README, however if you
are using system glad or or glad installed via pip this assumption
doesn't hold.

Therefore relax the requirement on where to get glad from. While at it
add shell option errexit and make the script callable from repository root.

Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
2024-11-06 16:35:57 +01:00

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Introduction

This folder contains the files generated by the glad GL loader for the game.

Instructions

Install glad via package manager or pip, for the latter create a venv if necessary. Alternatively fetch the glad git repo as outlined below. On Windows fetching the git repo is assumed.

Download glad v2:

git clone https://github.com/Dav1dde/glad.git -b glad2

Install the python dependencies

cd glad
pip install -r requirements.txt

Do not revert the WFG patch in include/glad/gl.h (around line 1765): do not add the change reverting it after the generation of the file Currently it's automatically applied by running the update-headers script. On Windows you need to run it under Git Bash or with the patch program in PATH.

Build the source files for all four backends with their respective extensions

  • GL 
    python -m glad --api="gl:core=2.1" --extensions="../extensions/gl.txt" --out-path="../" c
  • GLES2 
    python -m glad --api="gles2=2.0" --extensions="../extensions/gles2.txt" --out-path="../" c
  • GLX 
    python -m glad --api="glx=1.4" --extensions="../extensions/glx.txt" --out-path="../" c
  • WGL 
    python -m glad --api="wgl=1.0" --extensions="../extensions/wgl.txt" --out-path="../" c
  • EGL 
    python -m glad --api="egl=1.5" --extensions="../extensions/egl.txt" --out-path="../" c
  • Vulkan 
    python -m glad --api="vulkan=1.1" --extensions="../extensions/vulkan.txt" --out-path="../" c

Rename all files to .cpp to prevent compilation warnings