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Adrian Johnson authored
The cairo image mime types, eg CAIRO_MIME_TYPE_JPEG, allow applications to attached the original encoded image file. This allows cairo backends that support the image encoding to embed the encoded data directly in the ouptut instead of recompressing the image bitmap with Flate. The CAIRO_MIME_TYPE_UNIQUE_ID mime type allows applications to assign a unique identifer to source surfaces. When surfaces with the same identifer are used multiple times. The backend can, if supported, only emit one copy of the image data for mupltiple uses.
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