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wayland/dma-buf: Handle zero modifiers from eglQueryDmaBufModifiersEXT
Some drivers expose EGL_EXT_image_dma_buf_import_modifiers so you can query supported formats, but don't support any modifiers. Handle this by treating it like DRM_FORMAT_MOD_INVALID. https://gitlab.gnome.org/GNOME/mutter/merge_requests/782
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@ -461,9 +461,17 @@ send_modifiers (struct wl_resource *resource,
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* then fill the array. */
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ret = meta_egl_query_dma_buf_modifiers (egl, egl_display, format, 0, NULL,
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NULL, &num_modifiers, NULL);
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if (!ret || num_modifiers == 0)
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if (!ret)
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return;
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if (num_modifiers == 0)
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{
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zwp_linux_dmabuf_v1_send_modifier (resource, format,
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DRM_FORMAT_MOD_INVALID >> 32,
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DRM_FORMAT_MOD_INVALID & 0xffffffff);
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return;
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}
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modifiers = g_new0 (uint64_t, num_modifiers);
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ret = meta_egl_query_dma_buf_modifiers (egl, egl_display, format,
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num_modifiers, modifiers, NULL,
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