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output: refuse to enable with zero mode
This can happen if the compositor enables an output without picking a mode, or performs a modeset with a zero width/height.
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1 changed files with 10 additions and 0 deletions
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@ -547,6 +547,16 @@ static bool output_basic_test(struct wlr_output *output) {
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enabled = output->pending.enabled;
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}
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if (enabled && (output->pending.committed & (WLR_OUTPUT_STATE_ENABLED |
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WLR_OUTPUT_STATE_MODE))) {
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int pending_width, pending_height;
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output_pending_resolution(output, &pending_width, &pending_height);
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if (pending_width == 0 || pending_height == 0) {
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wlr_log(WLR_DEBUG, "Tried to enable an output with a zero mode");
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return false;
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}
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}
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if (!enabled && output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
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wlr_log(WLR_DEBUG, "Tried to commit a buffer on a disabled output");
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return false;
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