7db8346fca
Fixes #10406 ImGui_ImplOpenGL3_Shutdown() calls imgl3wShutdown() which dlcloses the GL library handles but does not zero out the imgl3w function pointer table (imgl3wProcs). When a GLArea is re-realized (e.g. during reparenting), ImGui_ImplOpenGL3_Init() calls ImGui_ImplOpenGL3_InitLoader() which checks "if (glGetIntegerv == nullptr)". Since the stale pointers are non-null, it skips re-initialization. The next GL call through a dangling function pointer causes a SIGSEGV. Fix this by introducing ImGui_ImplOpenGL3_ShutdownWithLoaderCleanup() which calls the normal shutdown and then zeroes the imgl3wProcs table, forcing the next Init to reload GL function pointers via imgl3wInit(). Also properly destroy the ImGui context and reset widget state in glAreaUnrealize so re-realize starts clean. This was extra but was probably leaking memory.
Packages
This folder contains packages written for and used by Ghostty that could potentially be useful for other projects. These are in-tree with Ghostty because I don't want to maintain them as separate projects (i.e. get dedicated issues, PRs, etc.). If you want to use them, you can copy and paste them into your project.
License
This license only applies to the contents of the pkg folder within
the Ghostty project. This license does not apply to the rest of the
Ghostty project.
Copyright © 2024 Mitchell Hashimoto, Ghostty contributors
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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