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output: allocate swapchain on first commit
On first commit, require a new buffer if the compositor called a mode-setting function, even if the mode won't change. This makes it so the swapchain is created now. Stop trying to check whether the backend supports buffer-less modesets because that makes everything more complicated. For instance, the DRM backend doesn't need a new buffer if the previous DRM master left the output enabled. Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3499 Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3502
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1 changed files with 6 additions and 6 deletions
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@ -209,13 +209,13 @@ bool output_ensure_buffer(struct wlr_output *output,
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if (state->committed & WLR_OUTPUT_STATE_RENDER_FORMAT) {
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needs_new_buffer = true;
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}
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if (!needs_new_buffer) {
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return true;
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if (state->allow_artifacts && output->commit_seq == 0) {
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// On first commit, require a new buffer if the compositor called a
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// mode-setting function, even if the mode won't change. This makes it
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// so the swapchain is created now.
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needs_new_buffer = true;
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}
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// If the backend doesn't necessarily need a new buffer on modeset, don't
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// bother allocating one.
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if (!output->impl->test || output->impl->test(output, state)) {
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if (!needs_new_buffer) {
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return true;
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}
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