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Merge pull request #2825 from StratusFearMe21/gtk-startup

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Prevent GTK from initializing Vulkan. This improves startup time
This commit is contained in:
Mitchell Hashimoto
2024-11-26 13:24:16 -08:00
committed by GitHub
parent c5a711a0e3 e3621e81b7
commit 204c5796a7
2 changed files with 12 additions and 4 deletions
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15
src/apprt/gtk/App.zig
View File

@ -100,9 +100,13 @@ pub fn init(core_app: *CoreApp, opts: Options) !App {
c.gtk_get_micro_version(),
});
// Disabling Vulkan can improve startup times by hundreds of
// milliseconds on some systems. We don't use Vulkan so we can just
// disable it.
if (version.atLeast(4, 16, 0)) {
// From gtk 4.16, GDK_DEBUG is split into GDK_DEBUG and GDK_DISABLE
_ = internal_os.setenv("GDK_DISABLE", "gles-api");
// From gtk 4.16, GDK_DEBUG is split into GDK_DEBUG and GDK_DISABLE.
// For the remainder of "why" see the 4.14 comment below.
_ = internal_os.setenv("GDK_DISABLE", "gles-api,vulkan");
_ = internal_os.setenv("GDK_DEBUG", "opengl");
} else if (version.atLeast(4, 14, 0)) {
// We need to export GDK_DEBUG to run on Wayland after GTK 4.14.
@ -111,11 +115,14 @@ pub fn init(core_app: *CoreApp, opts: Options) !App {
// reassess...
//
// Upstream issue: https://gitlab.gnome.org/GNOME/gtk/-/issues/6589
_ = internal_os.setenv("GDK_DEBUG", "opengl,gl-disable-gles");
_ = internal_os.setenv("GDK_DEBUG", "opengl,gl-disable-gles,vulkan-disable");
} else {
_ = internal_os.setenv("GDK_DEBUG", "vulkan-disable");
}
if (version.atLeast(4, 14, 0)) {
// We need to export GSK_RENDERER to opengl because GTK uses ngl by default after 4.14
// We need to export GSK_RENDERER to opengl because GTK uses ngl by
// default after 4.14
_ = internal_os.setenv("GSK_RENDERER", "opengl");
}

1
src/termio/Exec.zig
View File

@ -843,6 +843,7 @@ const Subprocess = struct {
// Don't leak these environment variables to child processes.
if (comptime build_config.app_runtime == .gtk) {
env.remove("GDK_DEBUG");
env.remove("GDK_DISABLE");
env.remove("GSK_RENDERER");
}