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output/render: make output_ensure_buffer() no-op when missing renderer

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Some compositors want to have full control over the buffers attached
to the output, and don't want to use the internal swapchain. Such
compositors include KWinFT (allocates its buffers on its own) and
gamescope (uses a headless output without any buffers).

Let's just make output_ensure_buffer() a no-op in that case.
This commit is contained in:
Simon Ser 2022-10-07 14:19:26 +02:00 committed by Kenny Levinsen
parent 7d8284ec10
commit e92b272616
1 changed files with 6 additions and 0 deletions
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6
types/output/render.c
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@ -191,6 +191,12 @@ bool output_ensure_buffer(struct wlr_output *output,
return true;
}
// If the compositor hasn't called wlr_output_init_render(), they will use
// their own logic to attach buffers
if (output->renderer == NULL) {
return true;
}
// If we're lighting up an output or changing its mode, make sure to
// provide a new buffer
bool needs_new_buffer = false;