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output: fix modifier stripping
DRM formats with an empty modifier list are invalid. Instead of emptying the list, reduce it to { INVALID }. Add a check to make sure the renderer and backend support implicit modifiers, so that we don't fallback on e.g. Vulkan. Closes: https://github.com/swaywm/sway/issues/6692
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1 changed files with 7 additions and 0 deletions
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@ -74,7 +74,14 @@ static bool output_create_swapchain(struct wlr_output *output,
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format->format, output->name);
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if (!allow_modifiers && (format->len != 1 || format->modifiers[0] != DRM_FORMAT_MOD_LINEAR)) {
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if (!wlr_drm_format_has(format, DRM_FORMAT_MOD_INVALID)) {
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wlr_log(WLR_DEBUG, "Implicit modifiers not supported");
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free(format);
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return false;
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}
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format->len = 0;
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wlr_drm_format_add(&format, DRM_FORMAT_MOD_INVALID);
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}
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struct wlr_swapchain *swapchain =
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