api: Add new ImageInput::supports() query: "mipmap" #4800
Merged
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ImageOutput::supports() recognized queries for "multiimage" and "mipmap". But ImageInput::supports() only recognized "multiimage". Add "mipmap" to make it easier for client software to know if the image file format they're reading from allows the possibility of MIP-mapping.
As far as I can tell, only OpenEXR, TIFF, Ptex, and DDS do, among the file types we currently support.